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brcmfmac: separate connection status from scanning status
[deliverable/linux.git] / drivers / net / wireless / brcm80211 / brcmfmac / wl_cfg80211.c
1 /*
2 * Copyright (c) 2010 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 /* Toplevel file. Relies on dhd_linux.c to send commands to the dongle. */
18
19 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
20
21 #include <linux/kernel.h>
22 #include <linux/if_arp.h>
23 #include <linux/sched.h>
24 #include <linux/kthread.h>
25 #include <linux/netdevice.h>
26 #include <linux/bitops.h>
27 #include <linux/etherdevice.h>
28 #include <linux/ieee80211.h>
29 #include <linux/uaccess.h>
30 #include <net/cfg80211.h>
31 #include <net/netlink.h>
32
33 #include <brcmu_utils.h>
34 #include <defs.h>
35 #include <brcmu_wifi.h>
36 #include "dhd.h"
37 #include "wl_cfg80211.h"
38 #include "fwil.h"
39
40 #define BRCMF_SCAN_IE_LEN_MAX 2048
41 #define BRCMF_PNO_VERSION 2
42 #define BRCMF_PNO_TIME 30
43 #define BRCMF_PNO_REPEAT 4
44 #define BRCMF_PNO_FREQ_EXPO_MAX 3
45 #define BRCMF_PNO_MAX_PFN_COUNT 16
46 #define BRCMF_PNO_ENABLE_ADAPTSCAN_BIT 6
47 #define BRCMF_PNO_HIDDEN_BIT 2
48 #define BRCMF_PNO_WPA_AUTH_ANY 0xFFFFFFFF
49 #define BRCMF_PNO_SCAN_COMPLETE 1
50 #define BRCMF_PNO_SCAN_INCOMPLETE 0
51
52 #define BRCMF_IFACE_MAX_CNT 2
53
54 #define TLV_LEN_OFF 1 /* length offset */
55 #define TLV_HDR_LEN 2 /* header length */
56 #define TLV_BODY_OFF 2 /* body offset */
57 #define TLV_OUI_LEN 3 /* oui id length */
58 #define WPA_OUI "\x00\x50\xF2" /* WPA OUI */
59 #define WPA_OUI_TYPE 1
60 #define RSN_OUI "\x00\x0F\xAC" /* RSN OUI */
61 #define WME_OUI_TYPE 2
62
63 #define VS_IE_FIXED_HDR_LEN 6
64 #define WPA_IE_VERSION_LEN 2
65 #define WPA_IE_MIN_OUI_LEN 4
66 #define WPA_IE_SUITE_COUNT_LEN 2
67
68 #define WPA_CIPHER_NONE 0 /* None */
69 #define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */
70 #define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */
71 #define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */
72 #define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */
73
74 #define RSN_AKM_NONE 0 /* None (IBSS) */
75 #define RSN_AKM_UNSPECIFIED 1 /* Over 802.1x */
76 #define RSN_AKM_PSK 2 /* Pre-shared Key */
77 #define RSN_CAP_LEN 2 /* Length of RSN capabilities */
78 #define RSN_CAP_PTK_REPLAY_CNTR_MASK 0x000C
79
80 #define VNDR_IE_CMD_LEN 4 /* length of the set command
81 * string :"add", "del" (+ NUL)
82 */
83 #define VNDR_IE_COUNT_OFFSET 4
84 #define VNDR_IE_PKTFLAG_OFFSET 8
85 #define VNDR_IE_VSIE_OFFSET 12
86 #define VNDR_IE_HDR_SIZE 12
87 #define VNDR_IE_BEACON_FLAG 0x1
88 #define VNDR_IE_PRBRSP_FLAG 0x2
89 #define MAX_VNDR_IE_NUMBER 5
90
91 #define DOT11_MGMT_HDR_LEN 24 /* d11 management header len */
92 #define DOT11_BCN_PRB_FIXED_LEN 12 /* beacon/probe fixed length */
93
94 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
95 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
96
97 static const u8 ether_bcast[ETH_ALEN] = {255, 255, 255, 255, 255, 255};
98
99 static u32 brcmf_dbg_level = WL_DBG_ERR;
100
101 static bool check_sys_up(struct brcmf_cfg80211_vif *vif)
102 {
103 if (!test_bit(BRCMF_VIF_STATUS_READY, &vif->sme_state)) {
104 WL_INFO("device is not ready : status (%lu)\n",
105 vif->sme_state);
106 return false;
107 }
108 return true;
109 }
110
111 #define CHAN2G(_channel, _freq, _flags) { \
112 .band = IEEE80211_BAND_2GHZ, \
113 .center_freq = (_freq), \
114 .hw_value = (_channel), \
115 .flags = (_flags), \
116 .max_antenna_gain = 0, \
117 .max_power = 30, \
118 }
119
120 #define CHAN5G(_channel, _flags) { \
121 .band = IEEE80211_BAND_5GHZ, \
122 .center_freq = 5000 + (5 * (_channel)), \
123 .hw_value = (_channel), \
124 .flags = (_flags), \
125 .max_antenna_gain = 0, \
126 .max_power = 30, \
127 }
128
129 #define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2)
130 #define RATETAB_ENT(_rateid, _flags) \
131 { \
132 .bitrate = RATE_TO_BASE100KBPS(_rateid), \
133 .hw_value = (_rateid), \
134 .flags = (_flags), \
135 }
136
137 static struct ieee80211_rate __wl_rates[] = {
138 RATETAB_ENT(BRCM_RATE_1M, 0),
139 RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
140 RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
141 RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
142 RATETAB_ENT(BRCM_RATE_6M, 0),
143 RATETAB_ENT(BRCM_RATE_9M, 0),
144 RATETAB_ENT(BRCM_RATE_12M, 0),
145 RATETAB_ENT(BRCM_RATE_18M, 0),
146 RATETAB_ENT(BRCM_RATE_24M, 0),
147 RATETAB_ENT(BRCM_RATE_36M, 0),
148 RATETAB_ENT(BRCM_RATE_48M, 0),
149 RATETAB_ENT(BRCM_RATE_54M, 0),
150 };
151
152 #define wl_a_rates (__wl_rates + 4)
153 #define wl_a_rates_size 8
154 #define wl_g_rates (__wl_rates + 0)
155 #define wl_g_rates_size 12
156
157 static struct ieee80211_channel __wl_2ghz_channels[] = {
158 CHAN2G(1, 2412, 0),
159 CHAN2G(2, 2417, 0),
160 CHAN2G(3, 2422, 0),
161 CHAN2G(4, 2427, 0),
162 CHAN2G(5, 2432, 0),
163 CHAN2G(6, 2437, 0),
164 CHAN2G(7, 2442, 0),
165 CHAN2G(8, 2447, 0),
166 CHAN2G(9, 2452, 0),
167 CHAN2G(10, 2457, 0),
168 CHAN2G(11, 2462, 0),
169 CHAN2G(12, 2467, 0),
170 CHAN2G(13, 2472, 0),
171 CHAN2G(14, 2484, 0),
172 };
173
174 static struct ieee80211_channel __wl_5ghz_a_channels[] = {
175 CHAN5G(34, 0), CHAN5G(36, 0),
176 CHAN5G(38, 0), CHAN5G(40, 0),
177 CHAN5G(42, 0), CHAN5G(44, 0),
178 CHAN5G(46, 0), CHAN5G(48, 0),
179 CHAN5G(52, 0), CHAN5G(56, 0),
180 CHAN5G(60, 0), CHAN5G(64, 0),
181 CHAN5G(100, 0), CHAN5G(104, 0),
182 CHAN5G(108, 0), CHAN5G(112, 0),
183 CHAN5G(116, 0), CHAN5G(120, 0),
184 CHAN5G(124, 0), CHAN5G(128, 0),
185 CHAN5G(132, 0), CHAN5G(136, 0),
186 CHAN5G(140, 0), CHAN5G(149, 0),
187 CHAN5G(153, 0), CHAN5G(157, 0),
188 CHAN5G(161, 0), CHAN5G(165, 0),
189 CHAN5G(184, 0), CHAN5G(188, 0),
190 CHAN5G(192, 0), CHAN5G(196, 0),
191 CHAN5G(200, 0), CHAN5G(204, 0),
192 CHAN5G(208, 0), CHAN5G(212, 0),
193 CHAN5G(216, 0),
194 };
195
196 static struct ieee80211_channel __wl_5ghz_n_channels[] = {
197 CHAN5G(32, 0), CHAN5G(34, 0),
198 CHAN5G(36, 0), CHAN5G(38, 0),
199 CHAN5G(40, 0), CHAN5G(42, 0),
200 CHAN5G(44, 0), CHAN5G(46, 0),
201 CHAN5G(48, 0), CHAN5G(50, 0),
202 CHAN5G(52, 0), CHAN5G(54, 0),
203 CHAN5G(56, 0), CHAN5G(58, 0),
204 CHAN5G(60, 0), CHAN5G(62, 0),
205 CHAN5G(64, 0), CHAN5G(66, 0),
206 CHAN5G(68, 0), CHAN5G(70, 0),
207 CHAN5G(72, 0), CHAN5G(74, 0),
208 CHAN5G(76, 0), CHAN5G(78, 0),
209 CHAN5G(80, 0), CHAN5G(82, 0),
210 CHAN5G(84, 0), CHAN5G(86, 0),
211 CHAN5G(88, 0), CHAN5G(90, 0),
212 CHAN5G(92, 0), CHAN5G(94, 0),
213 CHAN5G(96, 0), CHAN5G(98, 0),
214 CHAN5G(100, 0), CHAN5G(102, 0),
215 CHAN5G(104, 0), CHAN5G(106, 0),
216 CHAN5G(108, 0), CHAN5G(110, 0),
217 CHAN5G(112, 0), CHAN5G(114, 0),
218 CHAN5G(116, 0), CHAN5G(118, 0),
219 CHAN5G(120, 0), CHAN5G(122, 0),
220 CHAN5G(124, 0), CHAN5G(126, 0),
221 CHAN5G(128, 0), CHAN5G(130, 0),
222 CHAN5G(132, 0), CHAN5G(134, 0),
223 CHAN5G(136, 0), CHAN5G(138, 0),
224 CHAN5G(140, 0), CHAN5G(142, 0),
225 CHAN5G(144, 0), CHAN5G(145, 0),
226 CHAN5G(146, 0), CHAN5G(147, 0),
227 CHAN5G(148, 0), CHAN5G(149, 0),
228 CHAN5G(150, 0), CHAN5G(151, 0),
229 CHAN5G(152, 0), CHAN5G(153, 0),
230 CHAN5G(154, 0), CHAN5G(155, 0),
231 CHAN5G(156, 0), CHAN5G(157, 0),
232 CHAN5G(158, 0), CHAN5G(159, 0),
233 CHAN5G(160, 0), CHAN5G(161, 0),
234 CHAN5G(162, 0), CHAN5G(163, 0),
235 CHAN5G(164, 0), CHAN5G(165, 0),
236 CHAN5G(166, 0), CHAN5G(168, 0),
237 CHAN5G(170, 0), CHAN5G(172, 0),
238 CHAN5G(174, 0), CHAN5G(176, 0),
239 CHAN5G(178, 0), CHAN5G(180, 0),
240 CHAN5G(182, 0), CHAN5G(184, 0),
241 CHAN5G(186, 0), CHAN5G(188, 0),
242 CHAN5G(190, 0), CHAN5G(192, 0),
243 CHAN5G(194, 0), CHAN5G(196, 0),
244 CHAN5G(198, 0), CHAN5G(200, 0),
245 CHAN5G(202, 0), CHAN5G(204, 0),
246 CHAN5G(206, 0), CHAN5G(208, 0),
247 CHAN5G(210, 0), CHAN5G(212, 0),
248 CHAN5G(214, 0), CHAN5G(216, 0),
249 CHAN5G(218, 0), CHAN5G(220, 0),
250 CHAN5G(222, 0), CHAN5G(224, 0),
251 CHAN5G(226, 0), CHAN5G(228, 0),
252 };
253
254 static struct ieee80211_supported_band __wl_band_2ghz = {
255 .band = IEEE80211_BAND_2GHZ,
256 .channels = __wl_2ghz_channels,
257 .n_channels = ARRAY_SIZE(__wl_2ghz_channels),
258 .bitrates = wl_g_rates,
259 .n_bitrates = wl_g_rates_size,
260 };
261
262 static struct ieee80211_supported_band __wl_band_5ghz_a = {
263 .band = IEEE80211_BAND_5GHZ,
264 .channels = __wl_5ghz_a_channels,
265 .n_channels = ARRAY_SIZE(__wl_5ghz_a_channels),
266 .bitrates = wl_a_rates,
267 .n_bitrates = wl_a_rates_size,
268 };
269
270 static struct ieee80211_supported_band __wl_band_5ghz_n = {
271 .band = IEEE80211_BAND_5GHZ,
272 .channels = __wl_5ghz_n_channels,
273 .n_channels = ARRAY_SIZE(__wl_5ghz_n_channels),
274 .bitrates = wl_a_rates,
275 .n_bitrates = wl_a_rates_size,
276 };
277
278 static const u32 __wl_cipher_suites[] = {
279 WLAN_CIPHER_SUITE_WEP40,
280 WLAN_CIPHER_SUITE_WEP104,
281 WLAN_CIPHER_SUITE_TKIP,
282 WLAN_CIPHER_SUITE_CCMP,
283 WLAN_CIPHER_SUITE_AES_CMAC,
284 };
285
286 /* tag_ID/length/value_buffer tuple */
287 struct brcmf_tlv {
288 u8 id;
289 u8 len;
290 u8 data[1];
291 };
292
293 /* Vendor specific ie. id = 221, oui and type defines exact ie */
294 struct brcmf_vs_tlv {
295 u8 id;
296 u8 len;
297 u8 oui[3];
298 u8 oui_type;
299 };
300
301 struct parsed_vndr_ie_info {
302 u8 *ie_ptr;
303 u32 ie_len; /* total length including id & length field */
304 struct brcmf_vs_tlv vndrie;
305 };
306
307 struct parsed_vndr_ies {
308 u32 count;
309 struct parsed_vndr_ie_info ie_info[MAX_VNDR_IE_NUMBER];
310 };
311
312 /* Quarter dBm units to mW
313 * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
314 * Table is offset so the last entry is largest mW value that fits in
315 * a u16.
316 */
317
318 #define QDBM_OFFSET 153 /* Offset for first entry */
319 #define QDBM_TABLE_LEN 40 /* Table size */
320
321 /* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
322 * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
323 */
324 #define QDBM_TABLE_LOW_BOUND 6493 /* Low bound */
325
326 /* Largest mW value that will round down to the last table entry,
327 * QDBM_OFFSET + QDBM_TABLE_LEN-1.
328 * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
329 * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
330 */
331 #define QDBM_TABLE_HIGH_BOUND 64938 /* High bound */
332
333 static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
334 /* qdBm: +0 +1 +2 +3 +4 +5 +6 +7 */
335 /* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
336 /* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
337 /* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
338 /* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
339 /* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
340 };
341
342 static u16 brcmf_qdbm_to_mw(u8 qdbm)
343 {
344 uint factor = 1;
345 int idx = qdbm - QDBM_OFFSET;
346
347 if (idx >= QDBM_TABLE_LEN)
348 /* clamp to max u16 mW value */
349 return 0xFFFF;
350
351 /* scale the qdBm index up to the range of the table 0-40
352 * where an offset of 40 qdBm equals a factor of 10 mW.
353 */
354 while (idx < 0) {
355 idx += 40;
356 factor *= 10;
357 }
358
359 /* return the mW value scaled down to the correct factor of 10,
360 * adding in factor/2 to get proper rounding.
361 */
362 return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
363 }
364
365 static u8 brcmf_mw_to_qdbm(u16 mw)
366 {
367 u8 qdbm;
368 int offset;
369 uint mw_uint = mw;
370 uint boundary;
371
372 /* handle boundary case */
373 if (mw_uint <= 1)
374 return 0;
375
376 offset = QDBM_OFFSET;
377
378 /* move mw into the range of the table */
379 while (mw_uint < QDBM_TABLE_LOW_BOUND) {
380 mw_uint *= 10;
381 offset -= 40;
382 }
383
384 for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
385 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
386 nqdBm_to_mW_map[qdbm]) / 2;
387 if (mw_uint < boundary)
388 break;
389 }
390
391 qdbm += (u8) offset;
392
393 return qdbm;
394 }
395
396 static u16 channel_to_chanspec(struct ieee80211_channel *ch)
397 {
398 u16 chanspec;
399
400 chanspec = ieee80211_frequency_to_channel(ch->center_freq);
401 chanspec &= WL_CHANSPEC_CHAN_MASK;
402
403 if (ch->band == IEEE80211_BAND_2GHZ)
404 chanspec |= WL_CHANSPEC_BAND_2G;
405 else
406 chanspec |= WL_CHANSPEC_BAND_5G;
407
408 if (ch->flags & IEEE80211_CHAN_NO_HT40) {
409 chanspec |= WL_CHANSPEC_BW_20;
410 chanspec |= WL_CHANSPEC_CTL_SB_NONE;
411 } else {
412 chanspec |= WL_CHANSPEC_BW_40;
413 if (ch->flags & IEEE80211_CHAN_NO_HT40PLUS)
414 chanspec |= WL_CHANSPEC_CTL_SB_LOWER;
415 else
416 chanspec |= WL_CHANSPEC_CTL_SB_UPPER;
417 }
418 return chanspec;
419 }
420
421 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
422 struct brcmf_wsec_key_le *key_le)
423 {
424 key_le->index = cpu_to_le32(key->index);
425 key_le->len = cpu_to_le32(key->len);
426 key_le->algo = cpu_to_le32(key->algo);
427 key_le->flags = cpu_to_le32(key->flags);
428 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
429 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
430 key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
431 memcpy(key_le->data, key->data, sizeof(key->data));
432 memcpy(key_le->ea, key->ea, sizeof(key->ea));
433 }
434
435 static int
436 send_key_to_dongle(struct net_device *ndev, struct brcmf_wsec_key *key)
437 {
438 int err;
439 struct brcmf_wsec_key_le key_le;
440
441 convert_key_from_CPU(key, &key_le);
442
443 brcmf_netdev_wait_pend8021x(ndev);
444
445 err = brcmf_fil_bsscfg_data_set(netdev_priv(ndev), "wsec_key", &key_le,
446 sizeof(key_le));
447
448 if (err)
449 WL_ERR("wsec_key error (%d)\n", err);
450 return err;
451 }
452
453 static s32
454 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
455 enum nl80211_iftype type, u32 *flags,
456 struct vif_params *params)
457 {
458 struct brcmf_if *ifp = netdev_priv(ndev);
459 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
460 s32 infra = 0;
461 s32 ap = 0;
462 s32 err = 0;
463
464 WL_TRACE("Enter, ndev=%p, type=%d\n", ndev, type);
465
466 switch (type) {
467 case NL80211_IFTYPE_MONITOR:
468 case NL80211_IFTYPE_WDS:
469 WL_ERR("type (%d) : currently we do not support this type\n",
470 type);
471 return -EOPNOTSUPP;
472 case NL80211_IFTYPE_ADHOC:
473 cfg->conf->mode = WL_MODE_IBSS;
474 infra = 0;
475 break;
476 case NL80211_IFTYPE_STATION:
477 cfg->conf->mode = WL_MODE_BSS;
478 infra = 1;
479 break;
480 case NL80211_IFTYPE_AP:
481 cfg->conf->mode = WL_MODE_AP;
482 ap = 1;
483 break;
484 default:
485 err = -EINVAL;
486 goto done;
487 }
488
489 if (ap) {
490 set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
491 if (!cfg->ap_info)
492 cfg->ap_info = kzalloc(sizeof(*cfg->ap_info),
493 GFP_KERNEL);
494 if (!cfg->ap_info) {
495 err = -ENOMEM;
496 goto done;
497 }
498 WL_INFO("IF Type = AP\n");
499 } else {
500 err = brcmf_fil_cmd_int_set(netdev_priv(ndev),
501 BRCMF_C_SET_INFRA, infra);
502 if (err) {
503 WL_ERR("WLC_SET_INFRA error (%d)\n", err);
504 err = -EAGAIN;
505 goto done;
506 }
507 WL_INFO("IF Type = %s\n",
508 (cfg->conf->mode == WL_MODE_IBSS) ?
509 "Adhoc" : "Infra");
510 }
511 ndev->ieee80211_ptr->iftype = type;
512
513 done:
514 WL_TRACE("Exit\n");
515
516 return err;
517 }
518
519 static void brcmf_set_mpc(struct net_device *ndev, int mpc)
520 {
521 struct brcmf_if *ifp = netdev_priv(ndev);
522 s32 err = 0;
523
524 if (check_sys_up(ifp->vif)) {
525 err = brcmf_fil_iovar_int_set(ifp, "mpc", mpc);
526 if (err) {
527 WL_ERR("fail to set mpc\n");
528 return;
529 }
530 WL_INFO("MPC : %d\n", mpc);
531 }
532 }
533
534 static void brcmf_iscan_prep(struct brcmf_scan_params_le *params_le,
535 struct brcmf_ssid *ssid)
536 {
537 memcpy(params_le->bssid, ether_bcast, ETH_ALEN);
538 params_le->bss_type = DOT11_BSSTYPE_ANY;
539 params_le->scan_type = 0;
540 params_le->channel_num = 0;
541 params_le->nprobes = cpu_to_le32(-1);
542 params_le->active_time = cpu_to_le32(-1);
543 params_le->passive_time = cpu_to_le32(-1);
544 params_le->home_time = cpu_to_le32(-1);
545 if (ssid && ssid->SSID_len) {
546 params_le->ssid_le.SSID_len = cpu_to_le32(ssid->SSID_len);
547 memcpy(&params_le->ssid_le.SSID, ssid->SSID, ssid->SSID_len);
548 }
549 }
550
551 static s32
552 brcmf_run_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan,
553 struct brcmf_ssid *ssid, u16 action)
554 {
555 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
556 offsetof(struct brcmf_iscan_params_le, params_le);
557 struct brcmf_iscan_params_le *params;
558 s32 err = 0;
559
560 if (ssid && ssid->SSID_len)
561 params_size += sizeof(struct brcmf_ssid);
562 params = kzalloc(params_size, GFP_KERNEL);
563 if (!params)
564 return -ENOMEM;
565 BUG_ON(params_size >= BRCMF_DCMD_SMLEN);
566
567 brcmf_iscan_prep(&params->params_le, ssid);
568
569 params->version = cpu_to_le32(BRCMF_ISCAN_REQ_VERSION);
570 params->action = cpu_to_le16(action);
571 params->scan_duration = cpu_to_le16(0);
572
573 err = brcmf_fil_iovar_data_set(netdev_priv(iscan->ndev), "iscan",
574 params, params_size);
575 if (err) {
576 if (err == -EBUSY)
577 WL_INFO("system busy : iscan canceled\n");
578 else
579 WL_ERR("error (%d)\n", err);
580 }
581
582 kfree(params);
583 return err;
584 }
585
586 static s32 brcmf_do_iscan(struct brcmf_cfg80211_info *cfg)
587 {
588 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg);
589 struct net_device *ndev = cfg_to_ndev(cfg);
590 struct brcmf_ssid ssid;
591 u32 passive_scan;
592 s32 err = 0;
593
594 /* Broadcast scan by default */
595 memset(&ssid, 0, sizeof(ssid));
596
597 iscan->state = WL_ISCAN_STATE_SCANING;
598
599 passive_scan = cfg->active_scan ? 0 : 1;
600 err = brcmf_fil_cmd_int_set(netdev_priv(ndev),
601 BRCMF_C_SET_PASSIVE_SCAN, passive_scan);
602 if (err) {
603 WL_ERR("error (%d)\n", err);
604 return err;
605 }
606 brcmf_set_mpc(ndev, 0);
607 cfg->iscan_kickstart = true;
608 err = brcmf_run_iscan(iscan, &ssid, BRCMF_SCAN_ACTION_START);
609 if (err) {
610 brcmf_set_mpc(ndev, 1);
611 cfg->iscan_kickstart = false;
612 return err;
613 }
614 mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000);
615 iscan->timer_on = 1;
616 return err;
617 }
618
619 static s32
620 brcmf_cfg80211_iscan(struct wiphy *wiphy, struct net_device *ndev,
621 struct cfg80211_scan_request *request,
622 struct cfg80211_ssid *this_ssid)
623 {
624 struct brcmf_if *ifp = netdev_priv(ndev);
625 struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
626 struct cfg80211_ssid *ssids;
627 struct brcmf_cfg80211_scan_req *sr = cfg->scan_req_int;
628 u32 passive_scan;
629 bool iscan_req;
630 bool spec_scan;
631 s32 err = 0;
632 u32 SSID_len;
633
634 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
635 WL_ERR("Scanning already: status (%lu)\n", cfg->scan_status);
636 return -EAGAIN;
637 }
638 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
639 WL_ERR("Scanning being aborted: status (%lu)\n",
640 cfg->scan_status);
641 return -EAGAIN;
642 }
643 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
644 WL_ERR("Connecting: status (%lu)\n", ifp->vif->sme_state);
645 return -EAGAIN;
646 }
647
648 iscan_req = false;
649 spec_scan = false;
650 if (request) {
651 /* scan bss */
652 ssids = request->ssids;
653 if (cfg->iscan_on && (!ssids || !ssids->ssid_len))
654 iscan_req = true;
655 } else {
656 /* scan in ibss */
657 /* we don't do iscan in ibss */
658 ssids = this_ssid;
659 }
660
661 cfg->scan_request = request;
662 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
663 if (iscan_req) {
664 err = brcmf_do_iscan(cfg);
665 if (!err)
666 return err;
667 else
668 goto scan_out;
669 } else {
670 WL_SCAN("ssid \"%s\", ssid_len (%d)\n",
671 ssids->ssid, ssids->ssid_len);
672 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
673 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
674 sr->ssid_le.SSID_len = cpu_to_le32(0);
675 if (SSID_len) {
676 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
677 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
678 spec_scan = true;
679 } else {
680 WL_SCAN("Broadcast scan\n");
681 }
682
683 passive_scan = cfg->active_scan ? 0 : 1;
684 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
685 passive_scan);
686 if (err) {
687 WL_ERR("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
688 goto scan_out;
689 }
690 brcmf_set_mpc(ndev, 0);
691 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
692 &sr->ssid_le, sizeof(sr->ssid_le));
693 if (err) {
694 if (err == -EBUSY)
695 WL_INFO("system busy : scan for \"%s\" "
696 "canceled\n", sr->ssid_le.SSID);
697 else
698 WL_ERR("WLC_SCAN error (%d)\n", err);
699
700 brcmf_set_mpc(ndev, 1);
701 goto scan_out;
702 }
703 }
704
705 return 0;
706
707 scan_out:
708 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
709 cfg->scan_request = NULL;
710 return err;
711 }
712
713 static void brcmf_escan_prep(struct brcmf_scan_params_le *params_le,
714 struct cfg80211_scan_request *request)
715 {
716 u32 n_ssids;
717 u32 n_channels;
718 s32 i;
719 s32 offset;
720 u16 chanspec;
721 char *ptr;
722 struct brcmf_ssid_le ssid_le;
723
724 memcpy(params_le->bssid, ether_bcast, ETH_ALEN);
725 params_le->bss_type = DOT11_BSSTYPE_ANY;
726 params_le->scan_type = 0;
727 params_le->channel_num = 0;
728 params_le->nprobes = cpu_to_le32(-1);
729 params_le->active_time = cpu_to_le32(-1);
730 params_le->passive_time = cpu_to_le32(-1);
731 params_le->home_time = cpu_to_le32(-1);
732 memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
733
734 /* if request is null exit so it will be all channel broadcast scan */
735 if (!request)
736 return;
737
738 n_ssids = request->n_ssids;
739 n_channels = request->n_channels;
740 /* Copy channel array if applicable */
741 WL_SCAN("### List of channelspecs to scan ### %d\n", n_channels);
742 if (n_channels > 0) {
743 for (i = 0; i < n_channels; i++) {
744 chanspec = channel_to_chanspec(request->channels[i]);
745 WL_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 WL_SCAN("Scanning all channels\n");
751 }
752 /* Copy ssid array if applicable */
753 WL_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 WL_SCAN("%d: Broadcast scan\n", i);
767 else
768 WL_SCAN("%d: scan for %s size =%d\n", i,
769 ssid_le.SSID, ssid_le.SSID_len);
770 memcpy(ptr, &ssid_le, sizeof(ssid_le));
771 ptr += sizeof(ssid_le);
772 }
773 } else {
774 WL_SCAN("Broadcast scan %p\n", request->ssids);
775 if ((request->ssids) && request->ssids->ssid_len) {
776 WL_SCAN("SSID %s len=%d\n", params_le->ssid_le.SSID,
777 request->ssids->ssid_len);
778 params_le->ssid_le.SSID_len =
779 cpu_to_le32(request->ssids->ssid_len);
780 memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
781 request->ssids->ssid_len);
782 }
783 }
784 /* Adding mask to channel numbers */
785 params_le->channel_num =
786 cpu_to_le32((n_ssids << BRCMF_SCAN_PARAMS_NSSID_SHIFT) |
787 (n_channels & BRCMF_SCAN_PARAMS_COUNT_MASK));
788 }
789
790 static s32
791 brcmf_notify_escan_complete(struct brcmf_cfg80211_info *cfg,
792 struct net_device *ndev,
793 bool aborted, bool fw_abort)
794 {
795 struct brcmf_scan_params_le params_le;
796 struct cfg80211_scan_request *scan_request;
797 s32 err = 0;
798
799 WL_SCAN("Enter\n");
800
801 /* clear scan request, because the FW abort can cause a second call */
802 /* to this functon and might cause a double cfg80211_scan_done */
803 scan_request = cfg->scan_request;
804 cfg->scan_request = NULL;
805
806 if (timer_pending(&cfg->escan_timeout))
807 del_timer_sync(&cfg->escan_timeout);
808
809 if (fw_abort) {
810 /* Do a scan abort to stop the driver's scan engine */
811 WL_SCAN("ABORT scan in firmware\n");
812 memset(&params_le, 0, sizeof(params_le));
813 memcpy(params_le.bssid, ether_bcast, ETH_ALEN);
814 params_le.bss_type = DOT11_BSSTYPE_ANY;
815 params_le.scan_type = 0;
816 params_le.channel_num = cpu_to_le32(1);
817 params_le.nprobes = cpu_to_le32(1);
818 params_le.active_time = cpu_to_le32(-1);
819 params_le.passive_time = cpu_to_le32(-1);
820 params_le.home_time = cpu_to_le32(-1);
821 /* Scan is aborted by setting channel_list[0] to -1 */
822 params_le.channel_list[0] = cpu_to_le16(-1);
823 /* E-Scan (or anyother type) can be aborted by SCAN */
824 err = brcmf_fil_cmd_data_set(netdev_priv(ndev), BRCMF_C_SCAN,
825 &params_le, sizeof(params_le));
826 if (err)
827 WL_ERR("Scan abort failed\n");
828 }
829 /*
830 * e-scan can be initiated by scheduled scan
831 * which takes precedence.
832 */
833 if (cfg->sched_escan) {
834 WL_SCAN("scheduled scan completed\n");
835 cfg->sched_escan = false;
836 if (!aborted)
837 cfg80211_sched_scan_results(cfg_to_wiphy(cfg));
838 brcmf_set_mpc(ndev, 1);
839 } else if (scan_request) {
840 WL_SCAN("ESCAN Completed scan: %s\n",
841 aborted ? "Aborted" : "Done");
842 cfg80211_scan_done(scan_request, aborted);
843 brcmf_set_mpc(ndev, 1);
844 }
845 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
846 WL_ERR("Scan complete while device not scanning\n");
847 return -EPERM;
848 }
849
850 return err;
851 }
852
853 static s32
854 brcmf_run_escan(struct brcmf_cfg80211_info *cfg, struct net_device *ndev,
855 struct cfg80211_scan_request *request, u16 action)
856 {
857 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
858 offsetof(struct brcmf_escan_params_le, params_le);
859 struct brcmf_escan_params_le *params;
860 s32 err = 0;
861
862 WL_SCAN("E-SCAN START\n");
863
864 if (request != NULL) {
865 /* Allocate space for populating ssids in struct */
866 params_size += sizeof(u32) * ((request->n_channels + 1) / 2);
867
868 /* Allocate space for populating ssids in struct */
869 params_size += sizeof(struct brcmf_ssid) * request->n_ssids;
870 }
871
872 params = kzalloc(params_size, GFP_KERNEL);
873 if (!params) {
874 err = -ENOMEM;
875 goto exit;
876 }
877 BUG_ON(params_size + sizeof("escan") >= BRCMF_DCMD_MEDLEN);
878 brcmf_escan_prep(&params->params_le, request);
879 params->version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
880 params->action = cpu_to_le16(action);
881 params->sync_id = cpu_to_le16(0x1234);
882
883 err = brcmf_fil_iovar_data_set(netdev_priv(ndev), "escan",
884 params, params_size);
885 if (err) {
886 if (err == -EBUSY)
887 WL_INFO("system busy : escan canceled\n");
888 else
889 WL_ERR("error (%d)\n", err);
890 }
891
892 kfree(params);
893 exit:
894 return err;
895 }
896
897 static s32
898 brcmf_do_escan(struct brcmf_cfg80211_info *cfg, struct wiphy *wiphy,
899 struct net_device *ndev, struct cfg80211_scan_request *request)
900 {
901 s32 err;
902 u32 passive_scan;
903 struct brcmf_scan_results *results;
904
905 WL_SCAN("Enter\n");
906 cfg->escan_info.ndev = ndev;
907 cfg->escan_info.wiphy = wiphy;
908 cfg->escan_info.escan_state = WL_ESCAN_STATE_SCANNING;
909 passive_scan = cfg->active_scan ? 0 : 1;
910 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), BRCMF_C_SET_PASSIVE_SCAN,
911 passive_scan);
912 if (err) {
913 WL_ERR("error (%d)\n", err);
914 return err;
915 }
916 brcmf_set_mpc(ndev, 0);
917 results = (struct brcmf_scan_results *)cfg->escan_info.escan_buf;
918 results->version = 0;
919 results->count = 0;
920 results->buflen = WL_ESCAN_RESULTS_FIXED_SIZE;
921
922 err = brcmf_run_escan(cfg, ndev, request, WL_ESCAN_ACTION_START);
923 if (err)
924 brcmf_set_mpc(ndev, 1);
925 return err;
926 }
927
928 static s32
929 brcmf_cfg80211_escan(struct wiphy *wiphy, struct net_device *ndev,
930 struct cfg80211_scan_request *request,
931 struct cfg80211_ssid *this_ssid)
932 {
933 struct brcmf_if *ifp = netdev_priv(ndev);
934 struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
935 struct cfg80211_ssid *ssids;
936 struct brcmf_cfg80211_scan_req *sr = cfg->scan_req_int;
937 u32 passive_scan;
938 bool escan_req;
939 bool spec_scan;
940 s32 err;
941 u32 SSID_len;
942
943 WL_SCAN("START ESCAN\n");
944
945 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
946 WL_ERR("Scanning already: status (%lu)\n", cfg->scan_status);
947 return -EAGAIN;
948 }
949 if (test_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status)) {
950 WL_ERR("Scanning being aborted: status (%lu)\n",
951 cfg->scan_status);
952 return -EAGAIN;
953 }
954 if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
955 WL_ERR("Connecting: status (%lu)\n", ifp->vif->sme_state);
956 return -EAGAIN;
957 }
958
959 /* Arm scan timeout timer */
960 mod_timer(&cfg->escan_timeout, jiffies +
961 WL_ESCAN_TIMER_INTERVAL_MS * HZ / 1000);
962
963 escan_req = false;
964 if (request) {
965 /* scan bss */
966 ssids = request->ssids;
967 escan_req = true;
968 } else {
969 /* scan in ibss */
970 /* we don't do escan in ibss */
971 ssids = this_ssid;
972 }
973
974 cfg->scan_request = request;
975 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
976 if (escan_req) {
977 err = brcmf_do_escan(cfg, wiphy, ndev, request);
978 if (!err)
979 return err;
980 else
981 goto scan_out;
982 } else {
983 WL_SCAN("ssid \"%s\", ssid_len (%d)\n",
984 ssids->ssid, ssids->ssid_len);
985 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
986 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
987 sr->ssid_le.SSID_len = cpu_to_le32(0);
988 spec_scan = false;
989 if (SSID_len) {
990 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
991 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
992 spec_scan = true;
993 } else
994 WL_SCAN("Broadcast scan\n");
995
996 passive_scan = cfg->active_scan ? 0 : 1;
997 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PASSIVE_SCAN,
998 passive_scan);
999 if (err) {
1000 WL_ERR("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
1001 goto scan_out;
1002 }
1003 brcmf_set_mpc(ndev, 0);
1004 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCAN,
1005 &sr->ssid_le, sizeof(sr->ssid_le));
1006 if (err) {
1007 if (err == -EBUSY)
1008 WL_INFO("BUSY: scan for \"%s\" canceled\n",
1009 sr->ssid_le.SSID);
1010 else
1011 WL_ERR("WLC_SCAN error (%d)\n", err);
1012
1013 brcmf_set_mpc(ndev, 1);
1014 goto scan_out;
1015 }
1016 }
1017
1018 return 0;
1019
1020 scan_out:
1021 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
1022 if (timer_pending(&cfg->escan_timeout))
1023 del_timer_sync(&cfg->escan_timeout);
1024 cfg->scan_request = NULL;
1025 return err;
1026 }
1027
1028 static s32
1029 brcmf_cfg80211_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
1030 {
1031 struct net_device *ndev = request->wdev->netdev;
1032 struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
1033 s32 err = 0;
1034
1035 WL_TRACE("Enter\n");
1036
1037 if (!check_sys_up(container_of(request->wdev,
1038 struct brcmf_cfg80211_vif, wdev)))
1039 return -EIO;
1040
1041 if (cfg->iscan_on)
1042 err = brcmf_cfg80211_iscan(wiphy, ndev, request, NULL);
1043 else if (cfg->escan_on)
1044 err = brcmf_cfg80211_escan(wiphy, ndev, request, NULL);
1045
1046 if (err)
1047 WL_ERR("scan error (%d)\n", err);
1048
1049 WL_TRACE("Exit\n");
1050 return err;
1051 }
1052
1053 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
1054 {
1055 s32 err = 0;
1056
1057 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "rtsthresh",
1058 rts_threshold);
1059 if (err)
1060 WL_ERR("Error (%d)\n", err);
1061
1062 return err;
1063 }
1064
1065 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
1066 {
1067 s32 err = 0;
1068
1069 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "fragthresh",
1070 frag_threshold);
1071 if (err)
1072 WL_ERR("Error (%d)\n", err);
1073
1074 return err;
1075 }
1076
1077 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
1078 {
1079 s32 err = 0;
1080 u32 cmd = (l ? BRCM_SET_LRL : BRCM_SET_SRL);
1081
1082 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), cmd, retry);
1083 if (err) {
1084 WL_ERR("cmd (%d) , error (%d)\n", cmd, err);
1085 return err;
1086 }
1087 return err;
1088 }
1089
1090 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1091 {
1092 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1093 struct net_device *ndev = cfg_to_ndev(cfg);
1094 struct brcmf_if *ifp = netdev_priv(ndev);
1095 s32 err = 0;
1096
1097 WL_TRACE("Enter\n");
1098 if (!check_sys_up(ifp->vif))
1099 return -EIO;
1100
1101 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
1102 (cfg->conf->rts_threshold != wiphy->rts_threshold)) {
1103 cfg->conf->rts_threshold = wiphy->rts_threshold;
1104 err = brcmf_set_rts(ndev, cfg->conf->rts_threshold);
1105 if (!err)
1106 goto done;
1107 }
1108 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
1109 (cfg->conf->frag_threshold != wiphy->frag_threshold)) {
1110 cfg->conf->frag_threshold = wiphy->frag_threshold;
1111 err = brcmf_set_frag(ndev, cfg->conf->frag_threshold);
1112 if (!err)
1113 goto done;
1114 }
1115 if (changed & WIPHY_PARAM_RETRY_LONG
1116 && (cfg->conf->retry_long != wiphy->retry_long)) {
1117 cfg->conf->retry_long = wiphy->retry_long;
1118 err = brcmf_set_retry(ndev, cfg->conf->retry_long, true);
1119 if (!err)
1120 goto done;
1121 }
1122 if (changed & WIPHY_PARAM_RETRY_SHORT
1123 && (cfg->conf->retry_short != wiphy->retry_short)) {
1124 cfg->conf->retry_short = wiphy->retry_short;
1125 err = brcmf_set_retry(ndev, cfg->conf->retry_short, false);
1126 if (!err)
1127 goto done;
1128 }
1129
1130 done:
1131 WL_TRACE("Exit\n");
1132 return err;
1133 }
1134
1135 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
1136 {
1137 memset(prof, 0, sizeof(*prof));
1138 }
1139
1140 static void brcmf_ch_to_chanspec(int ch, struct brcmf_join_params *join_params,
1141 size_t *join_params_size)
1142 {
1143 u16 chanspec = 0;
1144
1145 if (ch != 0) {
1146 if (ch <= CH_MAX_2G_CHANNEL)
1147 chanspec |= WL_CHANSPEC_BAND_2G;
1148 else
1149 chanspec |= WL_CHANSPEC_BAND_5G;
1150
1151 chanspec |= WL_CHANSPEC_BW_20;
1152 chanspec |= WL_CHANSPEC_CTL_SB_NONE;
1153
1154 *join_params_size += BRCMF_ASSOC_PARAMS_FIXED_SIZE +
1155 sizeof(u16);
1156
1157 chanspec |= (ch & WL_CHANSPEC_CHAN_MASK);
1158 join_params->params_le.chanspec_list[0] = cpu_to_le16(chanspec);
1159 join_params->params_le.chanspec_num = cpu_to_le32(1);
1160
1161 WL_CONN("join_params->params.chanspec_list[0]= %#X,"
1162 "channel %d, chanspec %#X\n",
1163 chanspec, ch, chanspec);
1164 }
1165 }
1166
1167 static void brcmf_link_down(struct brcmf_cfg80211_info *cfg)
1168 {
1169 struct net_device *ndev = NULL;
1170 s32 err = 0;
1171
1172 WL_TRACE("Enter\n");
1173
1174 if (cfg->link_up) {
1175 ndev = cfg_to_ndev(cfg);
1176 WL_INFO("Call WLC_DISASSOC to stop excess roaming\n ");
1177 err = brcmf_fil_cmd_data_set(netdev_priv(ndev),
1178 BRCMF_C_DISASSOC, NULL, 0);
1179 if (err)
1180 WL_ERR("WLC_DISASSOC failed (%d)\n", err);
1181 cfg->link_up = false;
1182 }
1183 WL_TRACE("Exit\n");
1184 }
1185
1186 static s32
1187 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
1188 struct cfg80211_ibss_params *params)
1189 {
1190 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1191 struct brcmf_if *ifp = netdev_priv(ndev);
1192 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1193 struct brcmf_join_params join_params;
1194 size_t join_params_size = 0;
1195 s32 err = 0;
1196 s32 wsec = 0;
1197 s32 bcnprd;
1198
1199 WL_TRACE("Enter\n");
1200 if (!check_sys_up(ifp->vif))
1201 return -EIO;
1202
1203 if (params->ssid)
1204 WL_CONN("SSID: %s\n", params->ssid);
1205 else {
1206 WL_CONN("SSID: NULL, Not supported\n");
1207 return -EOPNOTSUPP;
1208 }
1209
1210 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1211
1212 if (params->bssid)
1213 WL_CONN("BSSID: %pM\n", params->bssid);
1214 else
1215 WL_CONN("No BSSID specified\n");
1216
1217 if (params->channel)
1218 WL_CONN("channel: %d\n", params->channel->center_freq);
1219 else
1220 WL_CONN("no channel specified\n");
1221
1222 if (params->channel_fixed)
1223 WL_CONN("fixed channel required\n");
1224 else
1225 WL_CONN("no fixed channel required\n");
1226
1227 if (params->ie && params->ie_len)
1228 WL_CONN("ie len: %d\n", params->ie_len);
1229 else
1230 WL_CONN("no ie specified\n");
1231
1232 if (params->beacon_interval)
1233 WL_CONN("beacon interval: %d\n", params->beacon_interval);
1234 else
1235 WL_CONN("no beacon interval specified\n");
1236
1237 if (params->basic_rates)
1238 WL_CONN("basic rates: %08X\n", params->basic_rates);
1239 else
1240 WL_CONN("no basic rates specified\n");
1241
1242 if (params->privacy)
1243 WL_CONN("privacy required\n");
1244 else
1245 WL_CONN("no privacy required\n");
1246
1247 /* Configure Privacy for starter */
1248 if (params->privacy)
1249 wsec |= WEP_ENABLED;
1250
1251 err = brcmf_fil_iovar_int_set(ifp, "wsec", wsec);
1252 if (err) {
1253 WL_ERR("wsec failed (%d)\n", err);
1254 goto done;
1255 }
1256
1257 /* Configure Beacon Interval for starter */
1258 if (params->beacon_interval)
1259 bcnprd = params->beacon_interval;
1260 else
1261 bcnprd = 100;
1262
1263 err = brcmf_fil_cmd_int_set(ifp, BRCM_SET_BCNPRD, bcnprd);
1264 if (err) {
1265 WL_ERR("WLC_SET_BCNPRD failed (%d)\n", err);
1266 goto done;
1267 }
1268
1269 /* Configure required join parameter */
1270 memset(&join_params, 0, sizeof(struct brcmf_join_params));
1271
1272 /* SSID */
1273 profile->ssid.SSID_len = min_t(u32, params->ssid_len, 32);
1274 memcpy(profile->ssid.SSID, params->ssid, profile->ssid.SSID_len);
1275 memcpy(join_params.ssid_le.SSID, params->ssid, profile->ssid.SSID_len);
1276 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1277 join_params_size = sizeof(join_params.ssid_le);
1278
1279 /* BSSID */
1280 if (params->bssid) {
1281 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
1282 join_params_size = sizeof(join_params.ssid_le) +
1283 BRCMF_ASSOC_PARAMS_FIXED_SIZE;
1284 memcpy(profile->bssid, params->bssid, ETH_ALEN);
1285 } else {
1286 memcpy(join_params.params_le.bssid, ether_bcast, ETH_ALEN);
1287 memset(profile->bssid, 0, ETH_ALEN);
1288 }
1289
1290 /* Channel */
1291 if (params->channel) {
1292 u32 target_channel;
1293
1294 cfg->channel =
1295 ieee80211_frequency_to_channel(
1296 params->channel->center_freq);
1297 if (params->channel_fixed) {
1298 /* adding chanspec */
1299 brcmf_ch_to_chanspec(cfg->channel,
1300 &join_params, &join_params_size);
1301 }
1302
1303 /* set channel for starter */
1304 target_channel = cfg->channel;
1305 err = brcmf_fil_cmd_int_set(ifp, BRCM_SET_CHANNEL,
1306 target_channel);
1307 if (err) {
1308 WL_ERR("WLC_SET_CHANNEL failed (%d)\n", err);
1309 goto done;
1310 }
1311 } else
1312 cfg->channel = 0;
1313
1314 cfg->ibss_starter = false;
1315
1316
1317 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1318 &join_params, join_params_size);
1319 if (err) {
1320 WL_ERR("WLC_SET_SSID failed (%d)\n", err);
1321 goto done;
1322 }
1323
1324 done:
1325 if (err)
1326 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1327 WL_TRACE("Exit\n");
1328 return err;
1329 }
1330
1331 static s32
1332 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1333 {
1334 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1335 struct brcmf_if *ifp = netdev_priv(ndev);
1336 s32 err = 0;
1337
1338 WL_TRACE("Enter\n");
1339 if (!check_sys_up(ifp->vif))
1340 return -EIO;
1341
1342 brcmf_link_down(cfg);
1343
1344 WL_TRACE("Exit\n");
1345
1346 return err;
1347 }
1348
1349 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1350 struct cfg80211_connect_params *sme)
1351 {
1352 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1353 struct brcmf_cfg80211_security *sec;
1354 s32 val = 0;
1355 s32 err = 0;
1356
1357 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1358 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1359 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1360 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1361 else
1362 val = WPA_AUTH_DISABLED;
1363 WL_CONN("setting wpa_auth to 0x%0x\n", val);
1364 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "wpa_auth", val);
1365 if (err) {
1366 WL_ERR("set wpa_auth failed (%d)\n", err);
1367 return err;
1368 }
1369 sec = &profile->sec;
1370 sec->wpa_versions = sme->crypto.wpa_versions;
1371 return err;
1372 }
1373
1374 static s32 brcmf_set_auth_type(struct net_device *ndev,
1375 struct cfg80211_connect_params *sme)
1376 {
1377 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1378 struct brcmf_cfg80211_security *sec;
1379 s32 val = 0;
1380 s32 err = 0;
1381
1382 switch (sme->auth_type) {
1383 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1384 val = 0;
1385 WL_CONN("open system\n");
1386 break;
1387 case NL80211_AUTHTYPE_SHARED_KEY:
1388 val = 1;
1389 WL_CONN("shared key\n");
1390 break;
1391 case NL80211_AUTHTYPE_AUTOMATIC:
1392 val = 2;
1393 WL_CONN("automatic\n");
1394 break;
1395 case NL80211_AUTHTYPE_NETWORK_EAP:
1396 WL_CONN("network eap\n");
1397 default:
1398 val = 2;
1399 WL_ERR("invalid auth type (%d)\n", sme->auth_type);
1400 break;
1401 }
1402
1403 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "auth", val);
1404 if (err) {
1405 WL_ERR("set auth failed (%d)\n", err);
1406 return err;
1407 }
1408 sec = &profile->sec;
1409 sec->auth_type = sme->auth_type;
1410 return err;
1411 }
1412
1413 static s32
1414 brcmf_set_set_cipher(struct net_device *ndev,
1415 struct cfg80211_connect_params *sme)
1416 {
1417 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1418 struct brcmf_cfg80211_security *sec;
1419 s32 pval = 0;
1420 s32 gval = 0;
1421 s32 err = 0;
1422
1423 if (sme->crypto.n_ciphers_pairwise) {
1424 switch (sme->crypto.ciphers_pairwise[0]) {
1425 case WLAN_CIPHER_SUITE_WEP40:
1426 case WLAN_CIPHER_SUITE_WEP104:
1427 pval = WEP_ENABLED;
1428 break;
1429 case WLAN_CIPHER_SUITE_TKIP:
1430 pval = TKIP_ENABLED;
1431 break;
1432 case WLAN_CIPHER_SUITE_CCMP:
1433 pval = AES_ENABLED;
1434 break;
1435 case WLAN_CIPHER_SUITE_AES_CMAC:
1436 pval = AES_ENABLED;
1437 break;
1438 default:
1439 WL_ERR("invalid cipher pairwise (%d)\n",
1440 sme->crypto.ciphers_pairwise[0]);
1441 return -EINVAL;
1442 }
1443 }
1444 if (sme->crypto.cipher_group) {
1445 switch (sme->crypto.cipher_group) {
1446 case WLAN_CIPHER_SUITE_WEP40:
1447 case WLAN_CIPHER_SUITE_WEP104:
1448 gval = WEP_ENABLED;
1449 break;
1450 case WLAN_CIPHER_SUITE_TKIP:
1451 gval = TKIP_ENABLED;
1452 break;
1453 case WLAN_CIPHER_SUITE_CCMP:
1454 gval = AES_ENABLED;
1455 break;
1456 case WLAN_CIPHER_SUITE_AES_CMAC:
1457 gval = AES_ENABLED;
1458 break;
1459 default:
1460 WL_ERR("invalid cipher group (%d)\n",
1461 sme->crypto.cipher_group);
1462 return -EINVAL;
1463 }
1464 }
1465
1466 WL_CONN("pval (%d) gval (%d)\n", pval, gval);
1467 err = brcmf_fil_iovar_int_set(netdev_priv(ndev), "wsec", pval | gval);
1468 if (err) {
1469 WL_ERR("error (%d)\n", err);
1470 return err;
1471 }
1472
1473 sec = &profile->sec;
1474 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1475 sec->cipher_group = sme->crypto.cipher_group;
1476
1477 return err;
1478 }
1479
1480 static s32
1481 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1482 {
1483 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1484 struct brcmf_cfg80211_security *sec;
1485 s32 val = 0;
1486 s32 err = 0;
1487
1488 if (sme->crypto.n_akm_suites) {
1489 err = brcmf_fil_iovar_int_get(netdev_priv(ndev),
1490 "wpa_auth", &val);
1491 if (err) {
1492 WL_ERR("could not get wpa_auth (%d)\n", err);
1493 return err;
1494 }
1495 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1496 switch (sme->crypto.akm_suites[0]) {
1497 case WLAN_AKM_SUITE_8021X:
1498 val = WPA_AUTH_UNSPECIFIED;
1499 break;
1500 case WLAN_AKM_SUITE_PSK:
1501 val = WPA_AUTH_PSK;
1502 break;
1503 default:
1504 WL_ERR("invalid cipher group (%d)\n",
1505 sme->crypto.cipher_group);
1506 return -EINVAL;
1507 }
1508 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1509 switch (sme->crypto.akm_suites[0]) {
1510 case WLAN_AKM_SUITE_8021X:
1511 val = WPA2_AUTH_UNSPECIFIED;
1512 break;
1513 case WLAN_AKM_SUITE_PSK:
1514 val = WPA2_AUTH_PSK;
1515 break;
1516 default:
1517 WL_ERR("invalid cipher group (%d)\n",
1518 sme->crypto.cipher_group);
1519 return -EINVAL;
1520 }
1521 }
1522
1523 WL_CONN("setting wpa_auth to %d\n", val);
1524 err = brcmf_fil_iovar_int_set(netdev_priv(ndev),
1525 "wpa_auth", val);
1526 if (err) {
1527 WL_ERR("could not set wpa_auth (%d)\n", err);
1528 return err;
1529 }
1530 }
1531 sec = &profile->sec;
1532 sec->wpa_auth = sme->crypto.akm_suites[0];
1533
1534 return err;
1535 }
1536
1537 static s32
1538 brcmf_set_sharedkey(struct net_device *ndev,
1539 struct cfg80211_connect_params *sme)
1540 {
1541 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
1542 struct brcmf_cfg80211_security *sec;
1543 struct brcmf_wsec_key key;
1544 s32 val;
1545 s32 err = 0;
1546
1547 WL_CONN("key len (%d)\n", sme->key_len);
1548
1549 if (sme->key_len == 0)
1550 return 0;
1551
1552 sec = &profile->sec;
1553 WL_CONN("wpa_versions 0x%x cipher_pairwise 0x%x\n",
1554 sec->wpa_versions, sec->cipher_pairwise);
1555
1556 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1557 return 0;
1558
1559 if (!(sec->cipher_pairwise &
1560 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)))
1561 return 0;
1562
1563 memset(&key, 0, sizeof(key));
1564 key.len = (u32) sme->key_len;
1565 key.index = (u32) sme->key_idx;
1566 if (key.len > sizeof(key.data)) {
1567 WL_ERR("Too long key length (%u)\n", key.len);
1568 return -EINVAL;
1569 }
1570 memcpy(key.data, sme->key, key.len);
1571 key.flags = BRCMF_PRIMARY_KEY;
1572 switch (sec->cipher_pairwise) {
1573 case WLAN_CIPHER_SUITE_WEP40:
1574 key.algo = CRYPTO_ALGO_WEP1;
1575 break;
1576 case WLAN_CIPHER_SUITE_WEP104:
1577 key.algo = CRYPTO_ALGO_WEP128;
1578 break;
1579 default:
1580 WL_ERR("Invalid algorithm (%d)\n",
1581 sme->crypto.ciphers_pairwise[0]);
1582 return -EINVAL;
1583 }
1584 /* Set the new key/index */
1585 WL_CONN("key length (%d) key index (%d) algo (%d)\n",
1586 key.len, key.index, key.algo);
1587 WL_CONN("key \"%s\"\n", key.data);
1588 err = send_key_to_dongle(ndev, &key);
1589 if (err)
1590 return err;
1591
1592 if (sec->auth_type == NL80211_AUTHTYPE_SHARED_KEY) {
1593 WL_CONN("set auth_type to shared key\n");
1594 val = WL_AUTH_SHARED_KEY; /* shared key */
1595 err = brcmf_fil_bsscfg_int_set(netdev_priv(ndev), "auth", val);
1596 if (err)
1597 WL_ERR("set auth failed (%d)\n", err);
1598 }
1599 return err;
1600 }
1601
1602 static s32
1603 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1604 struct cfg80211_connect_params *sme)
1605 {
1606 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1607 struct brcmf_if *ifp = netdev_priv(ndev);
1608 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1609 struct ieee80211_channel *chan = sme->channel;
1610 struct brcmf_join_params join_params;
1611 size_t join_params_size;
1612 struct brcmf_ssid ssid;
1613
1614 s32 err = 0;
1615
1616 WL_TRACE("Enter\n");
1617 if (!check_sys_up(ifp->vif))
1618 return -EIO;
1619
1620 if (!sme->ssid) {
1621 WL_ERR("Invalid ssid\n");
1622 return -EOPNOTSUPP;
1623 }
1624
1625 set_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1626
1627 if (chan) {
1628 cfg->channel =
1629 ieee80211_frequency_to_channel(chan->center_freq);
1630 WL_CONN("channel (%d), center_req (%d)\n",
1631 cfg->channel, chan->center_freq);
1632 } else
1633 cfg->channel = 0;
1634
1635 WL_INFO("ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1636
1637 err = brcmf_set_wpa_version(ndev, sme);
1638 if (err) {
1639 WL_ERR("wl_set_wpa_version failed (%d)\n", err);
1640 goto done;
1641 }
1642
1643 err = brcmf_set_auth_type(ndev, sme);
1644 if (err) {
1645 WL_ERR("wl_set_auth_type failed (%d)\n", err);
1646 goto done;
1647 }
1648
1649 err = brcmf_set_set_cipher(ndev, sme);
1650 if (err) {
1651 WL_ERR("wl_set_set_cipher failed (%d)\n", err);
1652 goto done;
1653 }
1654
1655 err = brcmf_set_key_mgmt(ndev, sme);
1656 if (err) {
1657 WL_ERR("wl_set_key_mgmt failed (%d)\n", err);
1658 goto done;
1659 }
1660
1661 err = brcmf_set_sharedkey(ndev, sme);
1662 if (err) {
1663 WL_ERR("brcmf_set_sharedkey failed (%d)\n", err);
1664 goto done;
1665 }
1666
1667 memset(&join_params, 0, sizeof(join_params));
1668 join_params_size = sizeof(join_params.ssid_le);
1669
1670 profile->ssid.SSID_len = min_t(u32,
1671 sizeof(ssid.SSID), (u32)sme->ssid_len);
1672 memcpy(&join_params.ssid_le.SSID, sme->ssid, profile->ssid.SSID_len);
1673 memcpy(&profile->ssid.SSID, sme->ssid, profile->ssid.SSID_len);
1674 join_params.ssid_le.SSID_len = cpu_to_le32(profile->ssid.SSID_len);
1675
1676 memcpy(join_params.params_le.bssid, ether_bcast, ETH_ALEN);
1677
1678 if (ssid.SSID_len < IEEE80211_MAX_SSID_LEN)
1679 WL_CONN("ssid \"%s\", len (%d)\n",
1680 ssid.SSID, ssid.SSID_len);
1681
1682 brcmf_ch_to_chanspec(cfg->channel,
1683 &join_params, &join_params_size);
1684 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
1685 &join_params, join_params_size);
1686 if (err)
1687 WL_ERR("WLC_SET_SSID failed (%d)\n", err);
1688
1689 done:
1690 if (err)
1691 clear_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state);
1692 WL_TRACE("Exit\n");
1693 return err;
1694 }
1695
1696 static s32
1697 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1698 u16 reason_code)
1699 {
1700 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1701 struct brcmf_if *ifp = netdev_priv(ndev);
1702 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
1703 struct brcmf_scb_val_le scbval;
1704 s32 err = 0;
1705
1706 WL_TRACE("Enter. Reason code = %d\n", reason_code);
1707 if (!check_sys_up(ifp->vif))
1708 return -EIO;
1709
1710 clear_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
1711
1712 memcpy(&scbval.ea, &profile->bssid, ETH_ALEN);
1713 scbval.val = cpu_to_le32(reason_code);
1714 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_DISASSOC,
1715 &scbval, sizeof(scbval));
1716 if (err)
1717 WL_ERR("error (%d)\n", err);
1718
1719 cfg->link_up = false;
1720
1721 WL_TRACE("Exit\n");
1722 return err;
1723 }
1724
1725 static s32
1726 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy,
1727 enum nl80211_tx_power_setting type, s32 mbm)
1728 {
1729
1730 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1731 struct net_device *ndev = cfg_to_ndev(cfg);
1732 struct brcmf_if *ifp = netdev_priv(ndev);
1733 u16 txpwrmw;
1734 s32 err = 0;
1735 s32 disable = 0;
1736 s32 dbm = MBM_TO_DBM(mbm);
1737
1738 WL_TRACE("Enter\n");
1739 if (!check_sys_up(ifp->vif))
1740 return -EIO;
1741
1742 switch (type) {
1743 case NL80211_TX_POWER_AUTOMATIC:
1744 break;
1745 case NL80211_TX_POWER_LIMITED:
1746 case NL80211_TX_POWER_FIXED:
1747 if (dbm < 0) {
1748 WL_ERR("TX_POWER_FIXED - dbm is negative\n");
1749 err = -EINVAL;
1750 goto done;
1751 }
1752 break;
1753 }
1754 /* Make sure radio is off or on as far as software is concerned */
1755 disable = WL_RADIO_SW_DISABLE << 16;
1756 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_RADIO, disable);
1757 if (err)
1758 WL_ERR("WLC_SET_RADIO error (%d)\n", err);
1759
1760 if (dbm > 0xffff)
1761 txpwrmw = 0xffff;
1762 else
1763 txpwrmw = (u16) dbm;
1764 err = brcmf_fil_iovar_int_set(ifp, "qtxpower",
1765 (s32)brcmf_mw_to_qdbm(txpwrmw));
1766 if (err)
1767 WL_ERR("qtxpower error (%d)\n", err);
1768 cfg->conf->tx_power = dbm;
1769
1770 done:
1771 WL_TRACE("Exit\n");
1772 return err;
1773 }
1774
1775 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, s32 *dbm)
1776 {
1777 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1778 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
1779 s32 txpwrdbm;
1780 u8 result;
1781 s32 err = 0;
1782
1783 WL_TRACE("Enter\n");
1784 if (!check_sys_up(ifp->vif))
1785 return -EIO;
1786
1787 err = brcmf_fil_iovar_int_get(ifp, "qtxpower", &txpwrdbm);
1788 if (err) {
1789 WL_ERR("error (%d)\n", err);
1790 goto done;
1791 }
1792
1793 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
1794 *dbm = (s32) brcmf_qdbm_to_mw(result);
1795
1796 done:
1797 WL_TRACE("Exit\n");
1798 return err;
1799 }
1800
1801 static s32
1802 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
1803 u8 key_idx, bool unicast, bool multicast)
1804 {
1805 struct brcmf_if *ifp = netdev_priv(ndev);
1806 u32 index;
1807 u32 wsec;
1808 s32 err = 0;
1809
1810 WL_TRACE("Enter\n");
1811 WL_CONN("key index (%d)\n", key_idx);
1812 if (!check_sys_up(ifp->vif))
1813 return -EIO;
1814
1815 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
1816 if (err) {
1817 WL_ERR("WLC_GET_WSEC error (%d)\n", err);
1818 goto done;
1819 }
1820
1821 if (wsec & WEP_ENABLED) {
1822 /* Just select a new current key */
1823 index = key_idx;
1824 err = brcmf_fil_cmd_int_set(ifp,
1825 BRCMF_C_SET_KEY_PRIMARY, index);
1826 if (err)
1827 WL_ERR("error (%d)\n", err);
1828 }
1829 done:
1830 WL_TRACE("Exit\n");
1831 return err;
1832 }
1833
1834 static s32
1835 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
1836 u8 key_idx, const u8 *mac_addr, struct key_params *params)
1837 {
1838 struct brcmf_wsec_key key;
1839 s32 err = 0;
1840
1841 memset(&key, 0, sizeof(key));
1842 key.index = (u32) key_idx;
1843 /* Instead of bcast for ea address for default wep keys,
1844 driver needs it to be Null */
1845 if (!is_multicast_ether_addr(mac_addr))
1846 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
1847 key.len = (u32) params->key_len;
1848 /* check for key index change */
1849 if (key.len == 0) {
1850 /* key delete */
1851 err = send_key_to_dongle(ndev, &key);
1852 if (err)
1853 WL_ERR("key delete error (%d)\n", err);
1854 } else {
1855 if (key.len > sizeof(key.data)) {
1856 WL_ERR("Invalid key length (%d)\n", key.len);
1857 return -EINVAL;
1858 }
1859
1860 WL_CONN("Setting the key index %d\n", key.index);
1861 memcpy(key.data, params->key, key.len);
1862
1863 if (params->cipher == WLAN_CIPHER_SUITE_TKIP) {
1864 u8 keybuf[8];
1865 memcpy(keybuf, &key.data[24], sizeof(keybuf));
1866 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1867 memcpy(&key.data[16], keybuf, sizeof(keybuf));
1868 }
1869
1870 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
1871 if (params->seq && params->seq_len == 6) {
1872 /* rx iv */
1873 u8 *ivptr;
1874 ivptr = (u8 *) params->seq;
1875 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
1876 (ivptr[3] << 8) | ivptr[2];
1877 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
1878 key.iv_initialized = true;
1879 }
1880
1881 switch (params->cipher) {
1882 case WLAN_CIPHER_SUITE_WEP40:
1883 key.algo = CRYPTO_ALGO_WEP1;
1884 WL_CONN("WLAN_CIPHER_SUITE_WEP40\n");
1885 break;
1886 case WLAN_CIPHER_SUITE_WEP104:
1887 key.algo = CRYPTO_ALGO_WEP128;
1888 WL_CONN("WLAN_CIPHER_SUITE_WEP104\n");
1889 break;
1890 case WLAN_CIPHER_SUITE_TKIP:
1891 key.algo = CRYPTO_ALGO_TKIP;
1892 WL_CONN("WLAN_CIPHER_SUITE_TKIP\n");
1893 break;
1894 case WLAN_CIPHER_SUITE_AES_CMAC:
1895 key.algo = CRYPTO_ALGO_AES_CCM;
1896 WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n");
1897 break;
1898 case WLAN_CIPHER_SUITE_CCMP:
1899 key.algo = CRYPTO_ALGO_AES_CCM;
1900 WL_CONN("WLAN_CIPHER_SUITE_CCMP\n");
1901 break;
1902 default:
1903 WL_ERR("Invalid cipher (0x%x)\n", params->cipher);
1904 return -EINVAL;
1905 }
1906 err = send_key_to_dongle(ndev, &key);
1907 if (err)
1908 WL_ERR("wsec_key error (%d)\n", err);
1909 }
1910 return err;
1911 }
1912
1913 static s32
1914 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
1915 u8 key_idx, bool pairwise, const u8 *mac_addr,
1916 struct key_params *params)
1917 {
1918 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
1919 struct brcmf_if *ifp = netdev_priv(ndev);
1920 struct brcmf_wsec_key key;
1921 s32 val;
1922 s32 wsec;
1923 s32 err = 0;
1924 u8 keybuf[8];
1925
1926 WL_TRACE("Enter\n");
1927 WL_CONN("key index (%d)\n", key_idx);
1928 if (!check_sys_up(ifp->vif))
1929 return -EIO;
1930
1931 if (mac_addr) {
1932 WL_TRACE("Exit");
1933 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
1934 }
1935 memset(&key, 0, sizeof(key));
1936
1937 key.len = (u32) params->key_len;
1938 key.index = (u32) key_idx;
1939
1940 if (key.len > sizeof(key.data)) {
1941 WL_ERR("Too long key length (%u)\n", key.len);
1942 err = -EINVAL;
1943 goto done;
1944 }
1945 memcpy(key.data, params->key, key.len);
1946
1947 key.flags = BRCMF_PRIMARY_KEY;
1948 switch (params->cipher) {
1949 case WLAN_CIPHER_SUITE_WEP40:
1950 key.algo = CRYPTO_ALGO_WEP1;
1951 val = WEP_ENABLED;
1952 WL_CONN("WLAN_CIPHER_SUITE_WEP40\n");
1953 break;
1954 case WLAN_CIPHER_SUITE_WEP104:
1955 key.algo = CRYPTO_ALGO_WEP128;
1956 val = WEP_ENABLED;
1957 WL_CONN("WLAN_CIPHER_SUITE_WEP104\n");
1958 break;
1959 case WLAN_CIPHER_SUITE_TKIP:
1960 if (cfg->conf->mode != WL_MODE_AP) {
1961 WL_CONN("Swapping key\n");
1962 memcpy(keybuf, &key.data[24], sizeof(keybuf));
1963 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1964 memcpy(&key.data[16], keybuf, sizeof(keybuf));
1965 }
1966 key.algo = CRYPTO_ALGO_TKIP;
1967 val = TKIP_ENABLED;
1968 WL_CONN("WLAN_CIPHER_SUITE_TKIP\n");
1969 break;
1970 case WLAN_CIPHER_SUITE_AES_CMAC:
1971 key.algo = CRYPTO_ALGO_AES_CCM;
1972 val = AES_ENABLED;
1973 WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n");
1974 break;
1975 case WLAN_CIPHER_SUITE_CCMP:
1976 key.algo = CRYPTO_ALGO_AES_CCM;
1977 val = AES_ENABLED;
1978 WL_CONN("WLAN_CIPHER_SUITE_CCMP\n");
1979 break;
1980 default:
1981 WL_ERR("Invalid cipher (0x%x)\n", params->cipher);
1982 err = -EINVAL;
1983 goto done;
1984 }
1985
1986 err = send_key_to_dongle(ndev, &key);
1987 if (err)
1988 goto done;
1989
1990 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
1991 if (err) {
1992 WL_ERR("get wsec error (%d)\n", err);
1993 goto done;
1994 }
1995 wsec |= val;
1996 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
1997 if (err) {
1998 WL_ERR("set wsec error (%d)\n", err);
1999 goto done;
2000 }
2001
2002 done:
2003 WL_TRACE("Exit\n");
2004 return err;
2005 }
2006
2007 static s32
2008 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
2009 u8 key_idx, bool pairwise, const u8 *mac_addr)
2010 {
2011 struct brcmf_if *ifp = netdev_priv(ndev);
2012 struct brcmf_wsec_key key;
2013 s32 err = 0;
2014
2015 WL_TRACE("Enter\n");
2016 if (!check_sys_up(ifp->vif))
2017 return -EIO;
2018
2019 memset(&key, 0, sizeof(key));
2020
2021 key.index = (u32) key_idx;
2022 key.flags = BRCMF_PRIMARY_KEY;
2023 key.algo = CRYPTO_ALGO_OFF;
2024
2025 WL_CONN("key index (%d)\n", key_idx);
2026
2027 /* Set the new key/index */
2028 err = send_key_to_dongle(ndev, &key);
2029 if (err) {
2030 if (err == -EINVAL) {
2031 if (key.index >= DOT11_MAX_DEFAULT_KEYS)
2032 /* we ignore this key index in this case */
2033 WL_ERR("invalid key index (%d)\n", key_idx);
2034 }
2035 /* Ignore this error, may happen during DISASSOC */
2036 err = -EAGAIN;
2037 }
2038
2039 WL_TRACE("Exit\n");
2040 return err;
2041 }
2042
2043 static s32
2044 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
2045 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
2046 void (*callback) (void *cookie, struct key_params * params))
2047 {
2048 struct key_params params;
2049 struct brcmf_if *ifp = netdev_priv(ndev);
2050 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2051 struct brcmf_cfg80211_security *sec;
2052 s32 wsec;
2053 s32 err = 0;
2054
2055 WL_TRACE("Enter\n");
2056 WL_CONN("key index (%d)\n", key_idx);
2057 if (!check_sys_up(ifp->vif))
2058 return -EIO;
2059
2060 memset(&params, 0, sizeof(params));
2061
2062 err = brcmf_fil_bsscfg_int_get(ifp, "wsec", &wsec);
2063 if (err) {
2064 WL_ERR("WLC_GET_WSEC error (%d)\n", err);
2065 /* Ignore this error, may happen during DISASSOC */
2066 err = -EAGAIN;
2067 goto done;
2068 }
2069 switch (wsec & ~SES_OW_ENABLED) {
2070 case WEP_ENABLED:
2071 sec = &profile->sec;
2072 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
2073 params.cipher = WLAN_CIPHER_SUITE_WEP40;
2074 WL_CONN("WLAN_CIPHER_SUITE_WEP40\n");
2075 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
2076 params.cipher = WLAN_CIPHER_SUITE_WEP104;
2077 WL_CONN("WLAN_CIPHER_SUITE_WEP104\n");
2078 }
2079 break;
2080 case TKIP_ENABLED:
2081 params.cipher = WLAN_CIPHER_SUITE_TKIP;
2082 WL_CONN("WLAN_CIPHER_SUITE_TKIP\n");
2083 break;
2084 case AES_ENABLED:
2085 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
2086 WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n");
2087 break;
2088 default:
2089 WL_ERR("Invalid algo (0x%x)\n", wsec);
2090 err = -EINVAL;
2091 goto done;
2092 }
2093 callback(cookie, &params);
2094
2095 done:
2096 WL_TRACE("Exit\n");
2097 return err;
2098 }
2099
2100 static s32
2101 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
2102 struct net_device *ndev, u8 key_idx)
2103 {
2104 WL_INFO("Not supported\n");
2105
2106 return -EOPNOTSUPP;
2107 }
2108
2109 static s32
2110 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
2111 u8 *mac, struct station_info *sinfo)
2112 {
2113 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2114 struct brcmf_if *ifp = netdev_priv(ndev);
2115 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
2116 struct brcmf_scb_val_le scb_val;
2117 int rssi;
2118 s32 rate;
2119 s32 err = 0;
2120 u8 *bssid = profile->bssid;
2121 struct brcmf_sta_info_le sta_info_le;
2122
2123 WL_TRACE("Enter, MAC %pM\n", mac);
2124 if (!check_sys_up(ifp->vif))
2125 return -EIO;
2126
2127 if (cfg->conf->mode == WL_MODE_AP) {
2128 memcpy(&sta_info_le, mac, ETH_ALEN);
2129 err = brcmf_fil_iovar_data_get(ifp, "sta_info",
2130 &sta_info_le,
2131 sizeof(sta_info_le));
2132 if (err < 0) {
2133 WL_ERR("GET STA INFO failed, %d\n", err);
2134 goto done;
2135 }
2136 sinfo->filled = STATION_INFO_INACTIVE_TIME;
2137 sinfo->inactive_time = le32_to_cpu(sta_info_le.idle) * 1000;
2138 if (le32_to_cpu(sta_info_le.flags) & BRCMF_STA_ASSOC) {
2139 sinfo->filled |= STATION_INFO_CONNECTED_TIME;
2140 sinfo->connected_time = le32_to_cpu(sta_info_le.in);
2141 }
2142 WL_TRACE("STA idle time : %d ms, connected time :%d sec\n",
2143 sinfo->inactive_time, sinfo->connected_time);
2144 } else if (cfg->conf->mode == WL_MODE_BSS) {
2145 if (memcmp(mac, bssid, ETH_ALEN)) {
2146 WL_ERR("Wrong Mac address cfg_mac-%pM wl_bssid-%pM\n",
2147 mac, bssid);
2148 err = -ENOENT;
2149 goto done;
2150 }
2151 /* Report the current tx rate */
2152 err = brcmf_fil_cmd_int_get(ifp, BRCMF_C_GET_RATE, &rate);
2153 if (err) {
2154 WL_ERR("Could not get rate (%d)\n", err);
2155 goto done;
2156 } else {
2157 sinfo->filled |= STATION_INFO_TX_BITRATE;
2158 sinfo->txrate.legacy = rate * 5;
2159 WL_CONN("Rate %d Mbps\n", rate / 2);
2160 }
2161
2162 if (test_bit(BRCMF_VIF_STATUS_CONNECTED,
2163 &ifp->vif->sme_state)) {
2164 memset(&scb_val, 0, sizeof(scb_val));
2165 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_RSSI,
2166 &scb_val, sizeof(scb_val));
2167 if (err) {
2168 WL_ERR("Could not get rssi (%d)\n", err);
2169 goto done;
2170 } else {
2171 rssi = le32_to_cpu(scb_val.val);
2172 sinfo->filled |= STATION_INFO_SIGNAL;
2173 sinfo->signal = rssi;
2174 WL_CONN("RSSI %d dBm\n", rssi);
2175 }
2176 }
2177 } else
2178 err = -EPERM;
2179 done:
2180 WL_TRACE("Exit\n");
2181 return err;
2182 }
2183
2184 static s32
2185 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
2186 bool enabled, s32 timeout)
2187 {
2188 s32 pm;
2189 s32 err = 0;
2190 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2191 struct brcmf_if *ifp = netdev_priv(ndev);
2192
2193 WL_TRACE("Enter\n");
2194
2195 /*
2196 * Powersave enable/disable request is coming from the
2197 * cfg80211 even before the interface is up. In that
2198 * scenario, driver will be storing the power save
2199 * preference in cfg struct to apply this to
2200 * FW later while initializing the dongle
2201 */
2202 cfg->pwr_save = enabled;
2203 if (!check_sys_up(ifp->vif)) {
2204
2205 WL_INFO("Device is not ready, storing the value in cfg_info struct\n");
2206 goto done;
2207 }
2208
2209 pm = enabled ? PM_FAST : PM_OFF;
2210 WL_INFO("power save %s\n", (pm ? "enabled" : "disabled"));
2211
2212 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm);
2213 if (err) {
2214 if (err == -ENODEV)
2215 WL_ERR("net_device is not ready yet\n");
2216 else
2217 WL_ERR("error (%d)\n", err);
2218 }
2219 done:
2220 WL_TRACE("Exit\n");
2221 return err;
2222 }
2223
2224 static s32
2225 brcmf_cfg80211_set_bitrate_mask(struct wiphy *wiphy, struct net_device *ndev,
2226 const u8 *addr,
2227 const struct cfg80211_bitrate_mask *mask)
2228 {
2229 struct brcmf_if *ifp = netdev_priv(ndev);
2230 struct brcm_rateset_le rateset_le;
2231 s32 rate;
2232 s32 val;
2233 s32 err_bg;
2234 s32 err_a;
2235 u32 legacy;
2236 s32 err = 0;
2237
2238 WL_TRACE("Enter\n");
2239 if (!check_sys_up(ifp->vif))
2240 return -EIO;
2241
2242 /* addr param is always NULL. ignore it */
2243 /* Get current rateset */
2244 err = brcmf_fil_cmd_data_get(ifp, BRCM_GET_CURR_RATESET,
2245 &rateset_le, sizeof(rateset_le));
2246 if (err) {
2247 WL_ERR("could not get current rateset (%d)\n", err);
2248 goto done;
2249 }
2250
2251 legacy = ffs(mask->control[IEEE80211_BAND_2GHZ].legacy & 0xFFFF);
2252 if (!legacy)
2253 legacy = ffs(mask->control[IEEE80211_BAND_5GHZ].legacy &
2254 0xFFFF);
2255
2256 val = wl_g_rates[legacy - 1].bitrate * 100000;
2257
2258 if (val < le32_to_cpu(rateset_le.count))
2259 /* Select rate by rateset index */
2260 rate = rateset_le.rates[val] & 0x7f;
2261 else
2262 /* Specified rate in bps */
2263 rate = val / 500000;
2264
2265 WL_CONN("rate %d mbps\n", rate / 2);
2266
2267 /*
2268 *
2269 * Set rate override,
2270 * Since the is a/b/g-blind, both a/bg_rate are enforced.
2271 */
2272 err_bg = brcmf_fil_iovar_int_set(ifp, "bg_rate", rate);
2273 err_a = brcmf_fil_iovar_int_set(ifp, "a_rate", rate);
2274 if (err_bg && err_a) {
2275 WL_ERR("could not set fixed rate (%d) (%d)\n", err_bg, err_a);
2276 err = err_bg | err_a;
2277 }
2278
2279 done:
2280 WL_TRACE("Exit\n");
2281 return err;
2282 }
2283
2284 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_info *cfg,
2285 struct brcmf_bss_info_le *bi)
2286 {
2287 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2288 struct ieee80211_channel *notify_channel;
2289 struct cfg80211_bss *bss;
2290 struct ieee80211_supported_band *band;
2291 s32 err = 0;
2292 u16 channel;
2293 u32 freq;
2294 u16 notify_capability;
2295 u16 notify_interval;
2296 u8 *notify_ie;
2297 size_t notify_ielen;
2298 s32 notify_signal;
2299
2300 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2301 WL_ERR("Bss info is larger than buffer. Discarding\n");
2302 return 0;
2303 }
2304
2305 channel = bi->ctl_ch ? bi->ctl_ch :
2306 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
2307
2308 if (channel <= CH_MAX_2G_CHANNEL)
2309 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2310 else
2311 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2312
2313 freq = ieee80211_channel_to_frequency(channel, band->band);
2314 notify_channel = ieee80211_get_channel(wiphy, freq);
2315
2316 notify_capability = le16_to_cpu(bi->capability);
2317 notify_interval = le16_to_cpu(bi->beacon_period);
2318 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2319 notify_ielen = le32_to_cpu(bi->ie_length);
2320 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2321
2322 WL_CONN("bssid: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
2323 bi->BSSID[0], bi->BSSID[1], bi->BSSID[2],
2324 bi->BSSID[3], bi->BSSID[4], bi->BSSID[5]);
2325 WL_CONN("Channel: %d(%d)\n", channel, freq);
2326 WL_CONN("Capability: %X\n", notify_capability);
2327 WL_CONN("Beacon interval: %d\n", notify_interval);
2328 WL_CONN("Signal: %d\n", notify_signal);
2329
2330 bss = cfg80211_inform_bss(wiphy, notify_channel, (const u8 *)bi->BSSID,
2331 0, notify_capability, notify_interval, notify_ie,
2332 notify_ielen, notify_signal, GFP_KERNEL);
2333
2334 if (!bss)
2335 return -ENOMEM;
2336
2337 cfg80211_put_bss(bss);
2338
2339 return err;
2340 }
2341
2342 static struct brcmf_bss_info_le *
2343 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2344 {
2345 if (bss == NULL)
2346 return list->bss_info_le;
2347 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2348 le32_to_cpu(bss->length));
2349 }
2350
2351 static s32 brcmf_inform_bss(struct brcmf_cfg80211_info *cfg)
2352 {
2353 struct brcmf_scan_results *bss_list;
2354 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2355 s32 err = 0;
2356 int i;
2357
2358 bss_list = cfg->bss_list;
2359 if (bss_list->version != BRCMF_BSS_INFO_VERSION) {
2360 WL_ERR("Version %d != WL_BSS_INFO_VERSION\n",
2361 bss_list->version);
2362 return -EOPNOTSUPP;
2363 }
2364 WL_SCAN("scanned AP count (%d)\n", bss_list->count);
2365 for (i = 0; i < bss_list->count && i < WL_AP_MAX; i++) {
2366 bi = next_bss_le(bss_list, bi);
2367 err = brcmf_inform_single_bss(cfg, bi);
2368 if (err)
2369 break;
2370 }
2371 return err;
2372 }
2373
2374 static s32 wl_inform_ibss(struct brcmf_cfg80211_info *cfg,
2375 struct net_device *ndev, const u8 *bssid)
2376 {
2377 struct wiphy *wiphy = cfg_to_wiphy(cfg);
2378 struct ieee80211_channel *notify_channel;
2379 struct brcmf_bss_info_le *bi = NULL;
2380 struct ieee80211_supported_band *band;
2381 struct cfg80211_bss *bss;
2382 u8 *buf = NULL;
2383 s32 err = 0;
2384 u16 channel;
2385 u32 freq;
2386 u16 notify_capability;
2387 u16 notify_interval;
2388 u8 *notify_ie;
2389 size_t notify_ielen;
2390 s32 notify_signal;
2391
2392 WL_TRACE("Enter\n");
2393
2394 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2395 if (buf == NULL) {
2396 err = -ENOMEM;
2397 goto CleanUp;
2398 }
2399
2400 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2401
2402 err = brcmf_fil_cmd_data_get(netdev_priv(ndev), BRCMF_C_GET_BSS_INFO,
2403 buf, WL_BSS_INFO_MAX);
2404 if (err) {
2405 WL_ERR("WLC_GET_BSS_INFO failed: %d\n", err);
2406 goto CleanUp;
2407 }
2408
2409 bi = (struct brcmf_bss_info_le *)(buf + 4);
2410
2411 channel = bi->ctl_ch ? bi->ctl_ch :
2412 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
2413
2414 if (channel <= CH_MAX_2G_CHANNEL)
2415 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2416 else
2417 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2418
2419 freq = ieee80211_channel_to_frequency(channel, band->band);
2420 notify_channel = ieee80211_get_channel(wiphy, freq);
2421
2422 notify_capability = le16_to_cpu(bi->capability);
2423 notify_interval = le16_to_cpu(bi->beacon_period);
2424 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2425 notify_ielen = le32_to_cpu(bi->ie_length);
2426 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2427
2428 WL_CONN("channel: %d(%d)\n", channel, freq);
2429 WL_CONN("capability: %X\n", notify_capability);
2430 WL_CONN("beacon interval: %d\n", notify_interval);
2431 WL_CONN("signal: %d\n", notify_signal);
2432
2433 bss = cfg80211_inform_bss(wiphy, notify_channel, bssid,
2434 0, notify_capability, notify_interval,
2435 notify_ie, notify_ielen, notify_signal, GFP_KERNEL);
2436
2437 if (!bss) {
2438 err = -ENOMEM;
2439 goto CleanUp;
2440 }
2441
2442 cfg80211_put_bss(bss);
2443
2444 CleanUp:
2445
2446 kfree(buf);
2447
2448 WL_TRACE("Exit\n");
2449
2450 return err;
2451 }
2452
2453 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_info *cfg)
2454 {
2455 return cfg->conf->mode == WL_MODE_IBSS;
2456 }
2457
2458 /*
2459 * Traverse a string of 1-byte tag/1-byte length/variable-length value
2460 * triples, returning a pointer to the substring whose first element
2461 * matches tag
2462 */
2463 static struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key)
2464 {
2465 struct brcmf_tlv *elt;
2466 int totlen;
2467
2468 elt = (struct brcmf_tlv *) buf;
2469 totlen = buflen;
2470
2471 /* find tagged parameter */
2472 while (totlen >= TLV_HDR_LEN) {
2473 int len = elt->len;
2474
2475 /* validate remaining totlen */
2476 if ((elt->id == key) && (totlen >= (len + TLV_HDR_LEN)))
2477 return elt;
2478
2479 elt = (struct brcmf_tlv *) ((u8 *) elt + (len + TLV_HDR_LEN));
2480 totlen -= (len + TLV_HDR_LEN);
2481 }
2482
2483 return NULL;
2484 }
2485
2486 /* Is any of the tlvs the expected entry? If
2487 * not update the tlvs buffer pointer/length.
2488 */
2489 static bool
2490 brcmf_tlv_has_ie(u8 *ie, u8 **tlvs, u32 *tlvs_len,
2491 u8 *oui, u32 oui_len, u8 type)
2492 {
2493 /* If the contents match the OUI and the type */
2494 if (ie[TLV_LEN_OFF] >= oui_len + 1 &&
2495 !memcmp(&ie[TLV_BODY_OFF], oui, oui_len) &&
2496 type == ie[TLV_BODY_OFF + oui_len]) {
2497 return true;
2498 }
2499
2500 if (tlvs == NULL)
2501 return false;
2502 /* point to the next ie */
2503 ie += ie[TLV_LEN_OFF] + TLV_HDR_LEN;
2504 /* calculate the length of the rest of the buffer */
2505 *tlvs_len -= (int)(ie - *tlvs);
2506 /* update the pointer to the start of the buffer */
2507 *tlvs = ie;
2508
2509 return false;
2510 }
2511
2512 static struct brcmf_vs_tlv *
2513 brcmf_find_wpaie(u8 *parse, u32 len)
2514 {
2515 struct brcmf_tlv *ie;
2516
2517 while ((ie = brcmf_parse_tlvs(parse, len, WLAN_EID_VENDOR_SPECIFIC))) {
2518 if (brcmf_tlv_has_ie((u8 *)ie, &parse, &len,
2519 WPA_OUI, TLV_OUI_LEN, WPA_OUI_TYPE))
2520 return (struct brcmf_vs_tlv *)ie;
2521 }
2522 return NULL;
2523 }
2524
2525 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_info *cfg)
2526 {
2527 struct net_device *ndev = cfg_to_ndev(cfg);
2528 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
2529 struct brcmf_if *ifp = netdev_priv(ndev);
2530 struct brcmf_bss_info_le *bi;
2531 struct brcmf_ssid *ssid;
2532 struct brcmf_tlv *tim;
2533 u16 beacon_interval;
2534 u8 dtim_period;
2535 size_t ie_len;
2536 u8 *ie;
2537 s32 err = 0;
2538
2539 WL_TRACE("Enter\n");
2540 if (brcmf_is_ibssmode(cfg))
2541 return err;
2542
2543 ssid = &profile->ssid;
2544
2545 *(__le32 *)cfg->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2546 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
2547 cfg->extra_buf, WL_EXTRA_BUF_MAX);
2548 if (err) {
2549 WL_ERR("Could not get bss info %d\n", err);
2550 goto update_bss_info_out;
2551 }
2552
2553 bi = (struct brcmf_bss_info_le *)(cfg->extra_buf + 4);
2554 err = brcmf_inform_single_bss(cfg, bi);
2555 if (err)
2556 goto update_bss_info_out;
2557
2558 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2559 ie_len = le32_to_cpu(bi->ie_length);
2560 beacon_interval = le16_to_cpu(bi->beacon_period);
2561
2562 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2563 if (tim)
2564 dtim_period = tim->data[1];
2565 else {
2566 /*
2567 * active scan was done so we could not get dtim
2568 * information out of probe response.
2569 * so we speficially query dtim information to dongle.
2570 */
2571 u32 var;
2572 err = brcmf_fil_iovar_int_get(ifp, "dtim_assoc", &var);
2573 if (err) {
2574 WL_ERR("wl dtim_assoc failed (%d)\n", err);
2575 goto update_bss_info_out;
2576 }
2577 dtim_period = (u8)var;
2578 }
2579
2580 profile->beacon_interval = beacon_interval;
2581 profile->dtim_period = dtim_period;
2582
2583 update_bss_info_out:
2584 WL_TRACE("Exit");
2585 return err;
2586 }
2587
2588 static void brcmf_abort_scanning(struct brcmf_cfg80211_info *cfg)
2589 {
2590 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg);
2591 struct escan_info *escan = &cfg->escan_info;
2592 struct brcmf_ssid ssid;
2593
2594 set_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2595 if (cfg->iscan_on) {
2596 iscan->state = WL_ISCAN_STATE_IDLE;
2597
2598 if (iscan->timer_on) {
2599 del_timer_sync(&iscan->timer);
2600 iscan->timer_on = 0;
2601 }
2602
2603 cancel_work_sync(&iscan->work);
2604
2605 /* Abort iscan running in FW */
2606 memset(&ssid, 0, sizeof(ssid));
2607 brcmf_run_iscan(iscan, &ssid, WL_SCAN_ACTION_ABORT);
2608
2609 if (cfg->scan_request) {
2610 /* Indidate scan abort to cfg80211 layer */
2611 WL_INFO("Terminating scan in progress\n");
2612 cfg80211_scan_done(cfg->scan_request, true);
2613 cfg->scan_request = NULL;
2614 }
2615 }
2616 if (cfg->escan_on && cfg->scan_request) {
2617 escan->escan_state = WL_ESCAN_STATE_IDLE;
2618 brcmf_notify_escan_complete(cfg, escan->ndev, true, true);
2619 }
2620 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
2621 clear_bit(BRCMF_SCAN_STATUS_ABORT, &cfg->scan_status);
2622 }
2623
2624 static void brcmf_notify_iscan_complete(struct brcmf_cfg80211_iscan_ctrl *iscan,
2625 bool aborted)
2626 {
2627 struct brcmf_cfg80211_info *cfg = iscan_to_cfg(iscan);
2628 struct net_device *ndev = cfg_to_ndev(cfg);
2629
2630 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2631 WL_ERR("Scan complete while device not scanning\n");
2632 return;
2633 }
2634 if (cfg->scan_request) {
2635 WL_SCAN("ISCAN Completed scan: %s\n",
2636 aborted ? "Aborted" : "Done");
2637 cfg80211_scan_done(cfg->scan_request, aborted);
2638 brcmf_set_mpc(ndev, 1);
2639 cfg->scan_request = NULL;
2640 }
2641 cfg->iscan_kickstart = false;
2642 }
2643
2644 static s32 brcmf_wakeup_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan)
2645 {
2646 if (iscan->state != WL_ISCAN_STATE_IDLE) {
2647 WL_SCAN("wake up iscan\n");
2648 schedule_work(&iscan->work);
2649 return 0;
2650 }
2651
2652 return -EIO;
2653 }
2654
2655 static s32
2656 brcmf_get_iscan_results(struct brcmf_cfg80211_iscan_ctrl *iscan, u32 *status,
2657 struct brcmf_scan_results **bss_list)
2658 {
2659 struct brcmf_scan_results *results;
2660 struct brcmf_scan_results_le *results_le;
2661 struct brcmf_iscan_results *list_buf;
2662 s32 err = 0;
2663
2664 memset(iscan->scan_buf, 0, WL_ISCAN_BUF_MAX);
2665 list_buf = (struct brcmf_iscan_results *)iscan->scan_buf;
2666 results = &list_buf->results;
2667 results_le = &list_buf->results_le;
2668 results_le->buflen = cpu_to_le32(sizeof(iscan->scan_buf));
2669 results_le->version = 0;
2670 results_le->count = 0;
2671
2672 err = brcmf_fil_iovar_data_get(netdev_priv(iscan->ndev), "iscanresults",
2673 iscan->scan_buf,
2674 sizeof(iscan->scan_buf));
2675 if (err) {
2676 WL_ERR("error (%d)\n", err);
2677 return err;
2678 }
2679 results->buflen = le32_to_cpu(results_le->buflen);
2680 results->version = le32_to_cpu(results_le->version);
2681 results->count = le32_to_cpu(results_le->count);
2682 WL_SCAN("results->count = %d\n", results_le->count);
2683 WL_SCAN("results->buflen = %d\n", results_le->buflen);
2684 *status = le32_to_cpu(list_buf->status_le);
2685 WL_SCAN("status = %d\n", *status);
2686 *bss_list = results;
2687
2688 return err;
2689 }
2690
2691 static s32 brcmf_iscan_done(struct brcmf_cfg80211_info *cfg)
2692 {
2693 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg->iscan;
2694 s32 err = 0;
2695
2696 iscan->state = WL_ISCAN_STATE_IDLE;
2697 brcmf_inform_bss(cfg);
2698 brcmf_notify_iscan_complete(iscan, false);
2699
2700 return err;
2701 }
2702
2703 static s32 brcmf_iscan_pending(struct brcmf_cfg80211_info *cfg)
2704 {
2705 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg->iscan;
2706 s32 err = 0;
2707
2708 /* Reschedule the timer */
2709 mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000);
2710 iscan->timer_on = 1;
2711
2712 return err;
2713 }
2714
2715 static s32 brcmf_iscan_inprogress(struct brcmf_cfg80211_info *cfg)
2716 {
2717 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg->iscan;
2718 s32 err = 0;
2719
2720 brcmf_inform_bss(cfg);
2721 brcmf_run_iscan(iscan, NULL, BRCMF_SCAN_ACTION_CONTINUE);
2722 /* Reschedule the timer */
2723 mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000);
2724 iscan->timer_on = 1;
2725
2726 return err;
2727 }
2728
2729 static s32 brcmf_iscan_aborted(struct brcmf_cfg80211_info *cfg)
2730 {
2731 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg->iscan;
2732 s32 err = 0;
2733
2734 iscan->state = WL_ISCAN_STATE_IDLE;
2735 brcmf_notify_iscan_complete(iscan, true);
2736
2737 return err;
2738 }
2739
2740 static void brcmf_cfg80211_iscan_handler(struct work_struct *work)
2741 {
2742 struct brcmf_cfg80211_iscan_ctrl *iscan =
2743 container_of(work, struct brcmf_cfg80211_iscan_ctrl,
2744 work);
2745 struct brcmf_cfg80211_info *cfg = iscan_to_cfg(iscan);
2746 struct brcmf_cfg80211_iscan_eloop *el = &iscan->el;
2747 u32 status = BRCMF_SCAN_RESULTS_PARTIAL;
2748
2749 if (iscan->timer_on) {
2750 del_timer_sync(&iscan->timer);
2751 iscan->timer_on = 0;
2752 }
2753
2754 if (brcmf_get_iscan_results(iscan, &status, &cfg->bss_list)) {
2755 status = BRCMF_SCAN_RESULTS_ABORTED;
2756 WL_ERR("Abort iscan\n");
2757 }
2758
2759 el->handler[status](cfg);
2760 }
2761
2762 static void brcmf_iscan_timer(unsigned long data)
2763 {
2764 struct brcmf_cfg80211_iscan_ctrl *iscan =
2765 (struct brcmf_cfg80211_iscan_ctrl *)data;
2766
2767 if (iscan) {
2768 iscan->timer_on = 0;
2769 WL_SCAN("timer expired\n");
2770 brcmf_wakeup_iscan(iscan);
2771 }
2772 }
2773
2774 static s32 brcmf_invoke_iscan(struct brcmf_cfg80211_info *cfg)
2775 {
2776 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg);
2777
2778 if (cfg->iscan_on) {
2779 iscan->state = WL_ISCAN_STATE_IDLE;
2780 INIT_WORK(&iscan->work, brcmf_cfg80211_iscan_handler);
2781 }
2782
2783 return 0;
2784 }
2785
2786 static void brcmf_init_iscan_eloop(struct brcmf_cfg80211_iscan_eloop *el)
2787 {
2788 memset(el, 0, sizeof(*el));
2789 el->handler[BRCMF_SCAN_RESULTS_SUCCESS] = brcmf_iscan_done;
2790 el->handler[BRCMF_SCAN_RESULTS_PARTIAL] = brcmf_iscan_inprogress;
2791 el->handler[BRCMF_SCAN_RESULTS_PENDING] = brcmf_iscan_pending;
2792 el->handler[BRCMF_SCAN_RESULTS_ABORTED] = brcmf_iscan_aborted;
2793 el->handler[BRCMF_SCAN_RESULTS_NO_MEM] = brcmf_iscan_aborted;
2794 }
2795
2796 static s32 brcmf_init_iscan(struct brcmf_cfg80211_info *cfg)
2797 {
2798 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg);
2799 int err = 0;
2800
2801 if (cfg->iscan_on) {
2802 iscan->ndev = cfg_to_ndev(cfg);
2803 brcmf_init_iscan_eloop(&iscan->el);
2804 iscan->timer_ms = WL_ISCAN_TIMER_INTERVAL_MS;
2805 init_timer(&iscan->timer);
2806 iscan->timer.data = (unsigned long) iscan;
2807 iscan->timer.function = brcmf_iscan_timer;
2808 err = brcmf_invoke_iscan(cfg);
2809 if (!err)
2810 iscan->data = cfg;
2811 }
2812
2813 return err;
2814 }
2815
2816 static void brcmf_cfg80211_escan_timeout_worker(struct work_struct *work)
2817 {
2818 struct brcmf_cfg80211_info *cfg =
2819 container_of(work, struct brcmf_cfg80211_info,
2820 escan_timeout_work);
2821
2822 brcmf_notify_escan_complete(cfg,
2823 cfg->escan_info.ndev, true, true);
2824 }
2825
2826 static void brcmf_escan_timeout(unsigned long data)
2827 {
2828 struct brcmf_cfg80211_info *cfg =
2829 (struct brcmf_cfg80211_info *)data;
2830
2831 if (cfg->scan_request) {
2832 WL_ERR("timer expired\n");
2833 if (cfg->escan_on)
2834 schedule_work(&cfg->escan_timeout_work);
2835 }
2836 }
2837
2838 static s32
2839 brcmf_compare_update_same_bss(struct brcmf_bss_info_le *bss,
2840 struct brcmf_bss_info_le *bss_info_le)
2841 {
2842 if (!memcmp(&bss_info_le->BSSID, &bss->BSSID, ETH_ALEN) &&
2843 (CHSPEC_BAND(le16_to_cpu(bss_info_le->chanspec)) ==
2844 CHSPEC_BAND(le16_to_cpu(bss->chanspec))) &&
2845 bss_info_le->SSID_len == bss->SSID_len &&
2846 !memcmp(bss_info_le->SSID, bss->SSID, bss_info_le->SSID_len)) {
2847 if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) ==
2848 (bss_info_le->flags & WLC_BSS_RSSI_ON_CHANNEL)) {
2849 s16 bss_rssi = le16_to_cpu(bss->RSSI);
2850 s16 bss_info_rssi = le16_to_cpu(bss_info_le->RSSI);
2851
2852 /* preserve max RSSI if the measurements are
2853 * both on-channel or both off-channel
2854 */
2855 if (bss_info_rssi > bss_rssi)
2856 bss->RSSI = bss_info_le->RSSI;
2857 } else if ((bss->flags & WLC_BSS_RSSI_ON_CHANNEL) &&
2858 (bss_info_le->flags & WLC_BSS_RSSI_ON_CHANNEL) == 0) {
2859 /* preserve the on-channel rssi measurement
2860 * if the new measurement is off channel
2861 */
2862 bss->RSSI = bss_info_le->RSSI;
2863 bss->flags |= WLC_BSS_RSSI_ON_CHANNEL;
2864 }
2865 return 1;
2866 }
2867 return 0;
2868 }
2869
2870 static s32
2871 brcmf_cfg80211_escan_handler(struct brcmf_cfg80211_info *cfg,
2872 struct net_device *ndev,
2873 const struct brcmf_event_msg *e, void *data)
2874 {
2875 s32 status;
2876 s32 err = 0;
2877 struct brcmf_escan_result_le *escan_result_le;
2878 struct brcmf_bss_info_le *bss_info_le;
2879 struct brcmf_bss_info_le *bss = NULL;
2880 u32 bi_length;
2881 struct brcmf_scan_results *list;
2882 u32 i;
2883 bool aborted;
2884
2885 status = be32_to_cpu(e->status);
2886
2887 if (!ndev || !cfg->escan_on ||
2888 !test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
2889 WL_ERR("scan not ready ndev %p wl->escan_on %d drv_status %x\n",
2890 ndev, cfg->escan_on,
2891 !test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status));
2892 return -EPERM;
2893 }
2894
2895 if (status == BRCMF_E_STATUS_PARTIAL) {
2896 WL_SCAN("ESCAN Partial result\n");
2897 escan_result_le = (struct brcmf_escan_result_le *) data;
2898 if (!escan_result_le) {
2899 WL_ERR("Invalid escan result (NULL pointer)\n");
2900 goto exit;
2901 }
2902 if (!cfg->scan_request) {
2903 WL_SCAN("result without cfg80211 request\n");
2904 goto exit;
2905 }
2906
2907 if (le16_to_cpu(escan_result_le->bss_count) != 1) {
2908 WL_ERR("Invalid bss_count %d: ignoring\n",
2909 escan_result_le->bss_count);
2910 goto exit;
2911 }
2912 bss_info_le = &escan_result_le->bss_info_le;
2913
2914 bi_length = le32_to_cpu(bss_info_le->length);
2915 if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
2916 WL_ESCAN_RESULTS_FIXED_SIZE)) {
2917 WL_ERR("Invalid bss_info length %d: ignoring\n",
2918 bi_length);
2919 goto exit;
2920 }
2921
2922 if (!(cfg_to_wiphy(cfg)->interface_modes &
2923 BIT(NL80211_IFTYPE_ADHOC))) {
2924 if (le16_to_cpu(bss_info_le->capability) &
2925 WLAN_CAPABILITY_IBSS) {
2926 WL_ERR("Ignoring IBSS result\n");
2927 goto exit;
2928 }
2929 }
2930
2931 list = (struct brcmf_scan_results *)
2932 cfg->escan_info.escan_buf;
2933 if (bi_length > WL_ESCAN_BUF_SIZE - list->buflen) {
2934 WL_ERR("Buffer is too small: ignoring\n");
2935 goto exit;
2936 }
2937
2938 for (i = 0; i < list->count; i++) {
2939 bss = bss ? (struct brcmf_bss_info_le *)
2940 ((unsigned char *)bss +
2941 le32_to_cpu(bss->length)) : list->bss_info_le;
2942 if (brcmf_compare_update_same_bss(bss, bss_info_le))
2943 goto exit;
2944 }
2945 memcpy(&(cfg->escan_info.escan_buf[list->buflen]),
2946 bss_info_le, bi_length);
2947 list->version = le32_to_cpu(bss_info_le->version);
2948 list->buflen += bi_length;
2949 list->count++;
2950 } else {
2951 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2952 if (cfg->scan_request) {
2953 cfg->bss_list = (struct brcmf_scan_results *)
2954 cfg->escan_info.escan_buf;
2955 brcmf_inform_bss(cfg);
2956 aborted = status != BRCMF_E_STATUS_SUCCESS;
2957 brcmf_notify_escan_complete(cfg, ndev, aborted,
2958 false);
2959 } else
2960 WL_ERR("Unexpected scan result 0x%x\n", status);
2961 }
2962 exit:
2963 return err;
2964 }
2965
2966 static void brcmf_init_escan(struct brcmf_cfg80211_info *cfg)
2967 {
2968
2969 if (cfg->escan_on) {
2970 cfg->el.handler[BRCMF_E_ESCAN_RESULT] =
2971 brcmf_cfg80211_escan_handler;
2972 cfg->escan_info.escan_state = WL_ESCAN_STATE_IDLE;
2973 /* Init scan_timeout timer */
2974 init_timer(&cfg->escan_timeout);
2975 cfg->escan_timeout.data = (unsigned long) cfg;
2976 cfg->escan_timeout.function = brcmf_escan_timeout;
2977 INIT_WORK(&cfg->escan_timeout_work,
2978 brcmf_cfg80211_escan_timeout_worker);
2979 }
2980 }
2981
2982 static __always_inline void brcmf_delay(u32 ms)
2983 {
2984 if (ms < 1000 / HZ) {
2985 cond_resched();
2986 mdelay(ms);
2987 } else {
2988 msleep(ms);
2989 }
2990 }
2991
2992 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2993 {
2994 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
2995 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
2996
2997 /*
2998 * Check for BRCMF_VIF_STATUS_READY before any function call which
2999 * could result is bus access. Don't block the resume for
3000 * any driver error conditions
3001 */
3002 WL_TRACE("Enter\n");
3003
3004 if (check_sys_up(ifp->vif))
3005 brcmf_invoke_iscan(wiphy_to_cfg(wiphy));
3006
3007 WL_TRACE("Exit\n");
3008 return 0;
3009 }
3010
3011 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
3012 struct cfg80211_wowlan *wow)
3013 {
3014 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3015 struct net_device *ndev = cfg_to_ndev(cfg);
3016 struct brcmf_if *ifp = netdev_priv(ndev);
3017
3018 WL_TRACE("Enter\n");
3019
3020 /*
3021 * Check for BRCMF_VIF_STATUS_READY before any function call which
3022 * could result is bus access. Don't block the suspend for
3023 * any driver error conditions
3024 */
3025
3026 /*
3027 * While going to suspend if associated with AP disassociate
3028 * from AP to save power while system is in suspended state
3029 */
3030 if ((test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state) ||
3031 test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) &&
3032 check_sys_up(ifp->vif)) {
3033 WL_INFO("Disassociating from AP"
3034 " while entering suspend state\n");
3035 brcmf_link_down(cfg);
3036
3037 /*
3038 * Make sure WPA_Supplicant receives all the event
3039 * generated due to DISASSOC call to the fw to keep
3040 * the state fw and WPA_Supplicant state consistent
3041 */
3042 brcmf_delay(500);
3043 }
3044
3045 if (test_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state))
3046 brcmf_abort_scanning(cfg);
3047 else
3048 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3049
3050 /* Turn off watchdog timer */
3051 if (test_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state))
3052 brcmf_set_mpc(ndev, 1);
3053
3054 WL_TRACE("Exit\n");
3055
3056 return 0;
3057 }
3058
3059 static __used s32
3060 brcmf_update_pmklist(struct net_device *ndev,
3061 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
3062 {
3063 int i, j;
3064 int pmkid_len;
3065
3066 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
3067
3068 WL_CONN("No of elements %d\n", pmkid_len);
3069 for (i = 0; i < pmkid_len; i++) {
3070 WL_CONN("PMKID[%d]: %pM =\n", i,
3071 &pmk_list->pmkids.pmkid[i].BSSID);
3072 for (j = 0; j < WLAN_PMKID_LEN; j++)
3073 WL_CONN("%02x\n", pmk_list->pmkids.pmkid[i].PMKID[j]);
3074 }
3075
3076 if (!err)
3077 brcmf_fil_iovar_data_set(netdev_priv(ndev), "pmkid_info",
3078 (char *)pmk_list, sizeof(*pmk_list));
3079
3080 return err;
3081 }
3082
3083 static s32
3084 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3085 struct cfg80211_pmksa *pmksa)
3086 {
3087 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3088 struct brcmf_if *ifp = netdev_priv(ndev);
3089 struct pmkid_list *pmkids = &cfg->pmk_list->pmkids;
3090 s32 err = 0;
3091 int i;
3092 int pmkid_len;
3093
3094 WL_TRACE("Enter\n");
3095 if (!check_sys_up(ifp->vif))
3096 return -EIO;
3097
3098 pmkid_len = le32_to_cpu(pmkids->npmkid);
3099 for (i = 0; i < pmkid_len; i++)
3100 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
3101 break;
3102 if (i < WL_NUM_PMKIDS_MAX) {
3103 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
3104 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3105 if (i == pmkid_len) {
3106 pmkid_len++;
3107 pmkids->npmkid = cpu_to_le32(pmkid_len);
3108 }
3109 } else
3110 err = -EINVAL;
3111
3112 WL_CONN("set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
3113 pmkids->pmkid[pmkid_len].BSSID);
3114 for (i = 0; i < WLAN_PMKID_LEN; i++)
3115 WL_CONN("%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
3116
3117 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3118
3119 WL_TRACE("Exit\n");
3120 return err;
3121 }
3122
3123 static s32
3124 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
3125 struct cfg80211_pmksa *pmksa)
3126 {
3127 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3128 struct brcmf_if *ifp = netdev_priv(ndev);
3129 struct pmkid_list pmkid;
3130 s32 err = 0;
3131 int i, pmkid_len;
3132
3133 WL_TRACE("Enter\n");
3134 if (!check_sys_up(ifp->vif))
3135 return -EIO;
3136
3137 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
3138 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
3139
3140 WL_CONN("del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
3141 &pmkid.pmkid[0].BSSID);
3142 for (i = 0; i < WLAN_PMKID_LEN; i++)
3143 WL_CONN("%02x\n", pmkid.pmkid[0].PMKID[i]);
3144
3145 pmkid_len = le32_to_cpu(cfg->pmk_list->pmkids.npmkid);
3146 for (i = 0; i < pmkid_len; i++)
3147 if (!memcmp
3148 (pmksa->bssid, &cfg->pmk_list->pmkids.pmkid[i].BSSID,
3149 ETH_ALEN))
3150 break;
3151
3152 if ((pmkid_len > 0)
3153 && (i < pmkid_len)) {
3154 memset(&cfg->pmk_list->pmkids.pmkid[i], 0,
3155 sizeof(struct pmkid));
3156 for (; i < (pmkid_len - 1); i++) {
3157 memcpy(&cfg->pmk_list->pmkids.pmkid[i].BSSID,
3158 &cfg->pmk_list->pmkids.pmkid[i + 1].BSSID,
3159 ETH_ALEN);
3160 memcpy(&cfg->pmk_list->pmkids.pmkid[i].PMKID,
3161 &cfg->pmk_list->pmkids.pmkid[i + 1].PMKID,
3162 WLAN_PMKID_LEN);
3163 }
3164 cfg->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
3165 } else
3166 err = -EINVAL;
3167
3168 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3169
3170 WL_TRACE("Exit\n");
3171 return err;
3172
3173 }
3174
3175 static s32
3176 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
3177 {
3178 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3179 struct brcmf_if *ifp = netdev_priv(ndev);
3180 s32 err = 0;
3181
3182 WL_TRACE("Enter\n");
3183 if (!check_sys_up(ifp->vif))
3184 return -EIO;
3185
3186 memset(cfg->pmk_list, 0, sizeof(*cfg->pmk_list));
3187 err = brcmf_update_pmklist(ndev, cfg->pmk_list, err);
3188
3189 WL_TRACE("Exit\n");
3190 return err;
3191
3192 }
3193
3194 /*
3195 * PFN result doesn't have all the info which are
3196 * required by the supplicant
3197 * (For e.g IEs) Do a target Escan so that sched scan results are reported
3198 * via wl_inform_single_bss in the required format. Escan does require the
3199 * scan request in the form of cfg80211_scan_request. For timebeing, create
3200 * cfg80211_scan_request one out of the received PNO event.
3201 */
3202 static s32
3203 brcmf_notify_sched_scan_results(struct brcmf_cfg80211_info *cfg,
3204 struct net_device *ndev,
3205 const struct brcmf_event_msg *e, void *data)
3206 {
3207 struct brcmf_pno_net_info_le *netinfo, *netinfo_start;
3208 struct cfg80211_scan_request *request = NULL;
3209 struct cfg80211_ssid *ssid = NULL;
3210 struct ieee80211_channel *channel = NULL;
3211 struct wiphy *wiphy = cfg_to_wiphy(cfg);
3212 int err = 0;
3213 int channel_req = 0;
3214 int band = 0;
3215 struct brcmf_pno_scanresults_le *pfn_result;
3216 u32 result_count;
3217 u32 status;
3218
3219 WL_SCAN("Enter\n");
3220
3221 if (e->event_type == cpu_to_be32(BRCMF_E_PFN_NET_LOST)) {
3222 WL_SCAN("PFN NET LOST event. Do Nothing\n");
3223 return 0;
3224 }
3225
3226 pfn_result = (struct brcmf_pno_scanresults_le *)data;
3227 result_count = le32_to_cpu(pfn_result->count);
3228 status = le32_to_cpu(pfn_result->status);
3229
3230 /*
3231 * PFN event is limited to fit 512 bytes so we may get
3232 * multiple NET_FOUND events. For now place a warning here.
3233 */
3234 WARN_ON(status != BRCMF_PNO_SCAN_COMPLETE);
3235 WL_SCAN("PFN NET FOUND event. count: %d\n", result_count);
3236 if (result_count > 0) {
3237 int i;
3238
3239 request = kzalloc(sizeof(*request), GFP_KERNEL);
3240 ssid = kcalloc(result_count, sizeof(*ssid), GFP_KERNEL);
3241 channel = kcalloc(result_count, sizeof(*channel), GFP_KERNEL);
3242 if (!request || !ssid || !channel) {
3243 err = -ENOMEM;
3244 goto out_err;
3245 }
3246
3247 request->wiphy = wiphy;
3248 data += sizeof(struct brcmf_pno_scanresults_le);
3249 netinfo_start = (struct brcmf_pno_net_info_le *)data;
3250
3251 for (i = 0; i < result_count; i++) {
3252 netinfo = &netinfo_start[i];
3253 if (!netinfo) {
3254 WL_ERR("Invalid netinfo ptr. index: %d\n", i);
3255 err = -EINVAL;
3256 goto out_err;
3257 }
3258
3259 WL_SCAN("SSID:%s Channel:%d\n",
3260 netinfo->SSID, netinfo->channel);
3261 memcpy(ssid[i].ssid, netinfo->SSID, netinfo->SSID_len);
3262 ssid[i].ssid_len = netinfo->SSID_len;
3263 request->n_ssids++;
3264
3265 channel_req = netinfo->channel;
3266 if (channel_req <= CH_MAX_2G_CHANNEL)
3267 band = NL80211_BAND_2GHZ;
3268 else
3269 band = NL80211_BAND_5GHZ;
3270 channel[i].center_freq =
3271 ieee80211_channel_to_frequency(channel_req,
3272 band);
3273 channel[i].band = band;
3274 channel[i].flags |= IEEE80211_CHAN_NO_HT40;
3275 request->channels[i] = &channel[i];
3276 request->n_channels++;
3277 }
3278
3279 /* assign parsed ssid array */
3280 if (request->n_ssids)
3281 request->ssids = &ssid[0];
3282
3283 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3284 /* Abort any on-going scan */
3285 brcmf_abort_scanning(cfg);
3286 }
3287
3288 set_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3289 err = brcmf_do_escan(cfg, wiphy, ndev, request);
3290 if (err) {
3291 clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status);
3292 goto out_err;
3293 }
3294 cfg->sched_escan = true;
3295 cfg->scan_request = request;
3296 } else {
3297 WL_ERR("FALSE PNO Event. (pfn_count == 0)\n");
3298 goto out_err;
3299 }
3300
3301 kfree(ssid);
3302 kfree(channel);
3303 kfree(request);
3304 return 0;
3305
3306 out_err:
3307 kfree(ssid);
3308 kfree(channel);
3309 kfree(request);
3310 cfg80211_sched_scan_stopped(wiphy);
3311 return err;
3312 }
3313
3314 #ifndef CONFIG_BRCMISCAN
3315 static int brcmf_dev_pno_clean(struct net_device *ndev)
3316 {
3317 int ret;
3318
3319 /* Disable pfn */
3320 ret = brcmf_fil_iovar_int_set(netdev_priv(ndev), "pfn", 0);
3321 if (ret == 0) {
3322 /* clear pfn */
3323 ret = brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfnclear",
3324 NULL, 0);
3325 }
3326 if (ret < 0)
3327 WL_ERR("failed code %d\n", ret);
3328
3329 return ret;
3330 }
3331
3332 static int brcmf_dev_pno_config(struct net_device *ndev)
3333 {
3334 struct brcmf_pno_param_le pfn_param;
3335
3336 memset(&pfn_param, 0, sizeof(pfn_param));
3337 pfn_param.version = cpu_to_le32(BRCMF_PNO_VERSION);
3338
3339 /* set extra pno params */
3340 pfn_param.flags = cpu_to_le16(1 << BRCMF_PNO_ENABLE_ADAPTSCAN_BIT);
3341 pfn_param.repeat = BRCMF_PNO_REPEAT;
3342 pfn_param.exp = BRCMF_PNO_FREQ_EXPO_MAX;
3343
3344 /* set up pno scan fr */
3345 pfn_param.scan_freq = cpu_to_le32(BRCMF_PNO_TIME);
3346
3347 return brcmf_fil_iovar_data_set(netdev_priv(ndev), "pfn_set",
3348 &pfn_param, sizeof(pfn_param));
3349 }
3350
3351 static int
3352 brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
3353 struct net_device *ndev,
3354 struct cfg80211_sched_scan_request *request)
3355 {
3356 struct brcmf_if *ifp = netdev_priv(ndev);
3357 struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
3358 struct brcmf_pno_net_param_le pfn;
3359 int i;
3360 int ret = 0;
3361
3362 WL_SCAN("Enter n_match_sets:%d n_ssids:%d\n",
3363 request->n_match_sets, request->n_ssids);
3364 if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
3365 WL_ERR("Scanning already: status (%lu)\n", cfg->scan_status);
3366 return -EAGAIN;
3367 }
3368
3369 if (!request || !request->n_ssids || !request->n_match_sets) {
3370 WL_ERR("Invalid sched scan req!! n_ssids:%d\n",
3371 request->n_ssids);
3372 return -EINVAL;
3373 }
3374
3375 if (request->n_ssids > 0) {
3376 for (i = 0; i < request->n_ssids; i++) {
3377 /* Active scan req for ssids */
3378 WL_SCAN(">>> Active scan req for ssid (%s)\n",
3379 request->ssids[i].ssid);
3380
3381 /*
3382 * match_set ssids is a supert set of n_ssid list,
3383 * so we need not add these set seperately.
3384 */
3385 }
3386 }
3387
3388 if (request->n_match_sets > 0) {
3389 /* clean up everything */
3390 ret = brcmf_dev_pno_clean(ndev);
3391 if (ret < 0) {
3392 WL_ERR("failed error=%d\n", ret);
3393 return ret;
3394 }
3395
3396 /* configure pno */
3397 ret = brcmf_dev_pno_config(ndev);
3398 if (ret < 0) {
3399 WL_ERR("PNO setup failed!! ret=%d\n", ret);
3400 return -EINVAL;
3401 }
3402
3403 /* configure each match set */
3404 for (i = 0; i < request->n_match_sets; i++) {
3405 struct cfg80211_ssid *ssid;
3406 u32 ssid_len;
3407
3408 ssid = &request->match_sets[i].ssid;
3409 ssid_len = ssid->ssid_len;
3410
3411 if (!ssid_len) {
3412 WL_ERR("skip broadcast ssid\n");
3413 continue;
3414 }
3415 pfn.auth = cpu_to_le32(WLAN_AUTH_OPEN);
3416 pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
3417 pfn.wsec = cpu_to_le32(0);
3418 pfn.infra = cpu_to_le32(1);
3419 pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
3420 pfn.ssid.SSID_len = cpu_to_le32(ssid_len);
3421 memcpy(pfn.ssid.SSID, ssid->ssid, ssid_len);
3422 ret = brcmf_fil_iovar_data_set(ifp, "pfn_add", &pfn,
3423 sizeof(pfn));
3424 WL_SCAN(">>> PNO filter %s for ssid (%s)\n",
3425 ret == 0 ? "set" : "failed",
3426 ssid->ssid);
3427 }
3428 /* Enable the PNO */
3429 if (brcmf_fil_iovar_int_set(ifp, "pfn", 1) < 0) {
3430 WL_ERR("PNO enable failed!! ret=%d\n", ret);
3431 return -EINVAL;
3432 }
3433 } else {
3434 return -EINVAL;
3435 }
3436
3437 return 0;
3438 }
3439
3440 static int brcmf_cfg80211_sched_scan_stop(struct wiphy *wiphy,
3441 struct net_device *ndev)
3442 {
3443 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3444
3445 WL_SCAN("enter\n");
3446 brcmf_dev_pno_clean(ndev);
3447 if (cfg->sched_escan)
3448 brcmf_notify_escan_complete(cfg, ndev, true, true);
3449 return 0;
3450 }
3451 #endif /* CONFIG_BRCMISCAN */
3452
3453 #ifdef CONFIG_NL80211_TESTMODE
3454 static int brcmf_cfg80211_testmode(struct wiphy *wiphy, void *data, int len)
3455 {
3456 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3457 struct net_device *ndev = cfg_to_ndev(cfg);
3458 struct brcmf_dcmd *dcmd = data;
3459 struct sk_buff *reply;
3460 int ret;
3461
3462 WL_TRACE("cmd %x set %d buf %p len %d\n", dcmd->cmd, dcmd->set,
3463 dcmd->buf, dcmd->len);
3464
3465 if (dcmd->set)
3466 ret = brcmf_fil_cmd_data_set(netdev_priv(ndev), dcmd->cmd,
3467 dcmd->buf, dcmd->len);
3468 else
3469 ret = brcmf_fil_cmd_data_get(netdev_priv(ndev), dcmd->cmd,
3470 dcmd->buf, dcmd->len);
3471 if (ret == 0) {
3472 reply = cfg80211_testmode_alloc_reply_skb(wiphy, sizeof(*dcmd));
3473 nla_put(reply, NL80211_ATTR_TESTDATA, sizeof(*dcmd), dcmd);
3474 ret = cfg80211_testmode_reply(reply);
3475 }
3476 return ret;
3477 }
3478 #endif
3479
3480 static s32 brcmf_configure_opensecurity(struct net_device *ndev, s32 bssidx)
3481 {
3482 struct brcmf_if *ifp = netdev_priv(ndev);
3483 s32 err;
3484
3485 /* set auth */
3486 err = brcmf_fil_bsscfg_int_set(ifp, "auth", 0);
3487 if (err < 0) {
3488 WL_ERR("auth error %d\n", err);
3489 return err;
3490 }
3491 /* set wsec */
3492 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", 0);
3493 if (err < 0) {
3494 WL_ERR("wsec error %d\n", err);
3495 return err;
3496 }
3497 /* set upper-layer auth */
3498 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", WPA_AUTH_NONE);
3499 if (err < 0) {
3500 WL_ERR("wpa_auth error %d\n", err);
3501 return err;
3502 }
3503
3504 return 0;
3505 }
3506
3507 static bool brcmf_valid_wpa_oui(u8 *oui, bool is_rsn_ie)
3508 {
3509 if (is_rsn_ie)
3510 return (memcmp(oui, RSN_OUI, TLV_OUI_LEN) == 0);
3511
3512 return (memcmp(oui, WPA_OUI, TLV_OUI_LEN) == 0);
3513 }
3514
3515 static s32
3516 brcmf_configure_wpaie(struct net_device *ndev, struct brcmf_vs_tlv *wpa_ie,
3517 bool is_rsn_ie, s32 bssidx)
3518 {
3519 struct brcmf_if *ifp = netdev_priv(ndev);
3520 u32 auth = 0; /* d11 open authentication */
3521 u16 count;
3522 s32 err = 0;
3523 s32 len = 0;
3524 u32 i;
3525 u32 wsec;
3526 u32 pval = 0;
3527 u32 gval = 0;
3528 u32 wpa_auth = 0;
3529 u32 offset;
3530 u8 *data;
3531 u16 rsn_cap;
3532 u32 wme_bss_disable;
3533
3534 WL_TRACE("Enter\n");
3535 if (wpa_ie == NULL)
3536 goto exit;
3537
3538 len = wpa_ie->len + TLV_HDR_LEN;
3539 data = (u8 *)wpa_ie;
3540 offset = 0;
3541 if (!is_rsn_ie)
3542 offset += VS_IE_FIXED_HDR_LEN;
3543 offset += WPA_IE_VERSION_LEN;
3544
3545 /* check for multicast cipher suite */
3546 if (offset + WPA_IE_MIN_OUI_LEN > len) {
3547 err = -EINVAL;
3548 WL_ERR("no multicast cipher suite\n");
3549 goto exit;
3550 }
3551
3552 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3553 err = -EINVAL;
3554 WL_ERR("ivalid OUI\n");
3555 goto exit;
3556 }
3557 offset += TLV_OUI_LEN;
3558
3559 /* pick up multicast cipher */
3560 switch (data[offset]) {
3561 case WPA_CIPHER_NONE:
3562 gval = 0;
3563 break;
3564 case WPA_CIPHER_WEP_40:
3565 case WPA_CIPHER_WEP_104:
3566 gval = WEP_ENABLED;
3567 break;
3568 case WPA_CIPHER_TKIP:
3569 gval = TKIP_ENABLED;
3570 break;
3571 case WPA_CIPHER_AES_CCM:
3572 gval = AES_ENABLED;
3573 break;
3574 default:
3575 err = -EINVAL;
3576 WL_ERR("Invalid multi cast cipher info\n");
3577 goto exit;
3578 }
3579
3580 offset++;
3581 /* walk thru unicast cipher list and pick up what we recognize */
3582 count = data[offset] + (data[offset + 1] << 8);
3583 offset += WPA_IE_SUITE_COUNT_LEN;
3584 /* Check for unicast suite(s) */
3585 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3586 err = -EINVAL;
3587 WL_ERR("no unicast cipher suite\n");
3588 goto exit;
3589 }
3590 for (i = 0; i < count; i++) {
3591 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3592 err = -EINVAL;
3593 WL_ERR("ivalid OUI\n");
3594 goto exit;
3595 }
3596 offset += TLV_OUI_LEN;
3597 switch (data[offset]) {
3598 case WPA_CIPHER_NONE:
3599 break;
3600 case WPA_CIPHER_WEP_40:
3601 case WPA_CIPHER_WEP_104:
3602 pval |= WEP_ENABLED;
3603 break;
3604 case WPA_CIPHER_TKIP:
3605 pval |= TKIP_ENABLED;
3606 break;
3607 case WPA_CIPHER_AES_CCM:
3608 pval |= AES_ENABLED;
3609 break;
3610 default:
3611 WL_ERR("Ivalid unicast security info\n");
3612 }
3613 offset++;
3614 }
3615 /* walk thru auth management suite list and pick up what we recognize */
3616 count = data[offset] + (data[offset + 1] << 8);
3617 offset += WPA_IE_SUITE_COUNT_LEN;
3618 /* Check for auth key management suite(s) */
3619 if (offset + (WPA_IE_MIN_OUI_LEN * count) > len) {
3620 err = -EINVAL;
3621 WL_ERR("no auth key mgmt suite\n");
3622 goto exit;
3623 }
3624 for (i = 0; i < count; i++) {
3625 if (!brcmf_valid_wpa_oui(&data[offset], is_rsn_ie)) {
3626 err = -EINVAL;
3627 WL_ERR("ivalid OUI\n");
3628 goto exit;
3629 }
3630 offset += TLV_OUI_LEN;
3631 switch (data[offset]) {
3632 case RSN_AKM_NONE:
3633 WL_TRACE("RSN_AKM_NONE\n");
3634 wpa_auth |= WPA_AUTH_NONE;
3635 break;
3636 case RSN_AKM_UNSPECIFIED:
3637 WL_TRACE("RSN_AKM_UNSPECIFIED\n");
3638 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_UNSPECIFIED) :
3639 (wpa_auth |= WPA_AUTH_UNSPECIFIED);
3640 break;
3641 case RSN_AKM_PSK:
3642 WL_TRACE("RSN_AKM_PSK\n");
3643 is_rsn_ie ? (wpa_auth |= WPA2_AUTH_PSK) :
3644 (wpa_auth |= WPA_AUTH_PSK);
3645 break;
3646 default:
3647 WL_ERR("Ivalid key mgmt info\n");
3648 }
3649 offset++;
3650 }
3651
3652 if (is_rsn_ie) {
3653 wme_bss_disable = 1;
3654 if ((offset + RSN_CAP_LEN) <= len) {
3655 rsn_cap = data[offset] + (data[offset + 1] << 8);
3656 if (rsn_cap & RSN_CAP_PTK_REPLAY_CNTR_MASK)
3657 wme_bss_disable = 0;
3658 }
3659 /* set wme_bss_disable to sync RSN Capabilities */
3660 err = brcmf_fil_bsscfg_int_set(ifp, "wme_bss_disable",
3661 wme_bss_disable);
3662 if (err < 0) {
3663 WL_ERR("wme_bss_disable error %d\n", err);
3664 goto exit;
3665 }
3666 }
3667 /* FOR WPS , set SES_OW_ENABLED */
3668 wsec = (pval | gval | SES_OW_ENABLED);
3669
3670 /* set auth */
3671 err = brcmf_fil_bsscfg_int_set(ifp, "auth", auth);
3672 if (err < 0) {
3673 WL_ERR("auth error %d\n", err);
3674 goto exit;
3675 }
3676 /* set wsec */
3677 err = brcmf_fil_bsscfg_int_set(ifp, "wsec", wsec);
3678 if (err < 0) {
3679 WL_ERR("wsec error %d\n", err);
3680 goto exit;
3681 }
3682 /* set upper-layer auth */
3683 err = brcmf_fil_bsscfg_int_set(ifp, "wpa_auth", wpa_auth);
3684 if (err < 0) {
3685 WL_ERR("wpa_auth error %d\n", err);
3686 goto exit;
3687 }
3688
3689 exit:
3690 return err;
3691 }
3692
3693 static s32
3694 brcmf_parse_vndr_ies(u8 *vndr_ie_buf, u32 vndr_ie_len,
3695 struct parsed_vndr_ies *vndr_ies)
3696 {
3697 s32 err = 0;
3698 struct brcmf_vs_tlv *vndrie;
3699 struct brcmf_tlv *ie;
3700 struct parsed_vndr_ie_info *parsed_info;
3701 s32 remaining_len;
3702
3703 remaining_len = (s32)vndr_ie_len;
3704 memset(vndr_ies, 0, sizeof(*vndr_ies));
3705
3706 ie = (struct brcmf_tlv *)vndr_ie_buf;
3707 while (ie) {
3708 if (ie->id != WLAN_EID_VENDOR_SPECIFIC)
3709 goto next;
3710 vndrie = (struct brcmf_vs_tlv *)ie;
3711 /* len should be bigger than OUI length + one */
3712 if (vndrie->len < (VS_IE_FIXED_HDR_LEN - TLV_HDR_LEN + 1)) {
3713 WL_ERR("invalid vndr ie. length is too small %d\n",
3714 vndrie->len);
3715 goto next;
3716 }
3717 /* if wpa or wme ie, do not add ie */
3718 if (!memcmp(vndrie->oui, (u8 *)WPA_OUI, TLV_OUI_LEN) &&
3719 ((vndrie->oui_type == WPA_OUI_TYPE) ||
3720 (vndrie->oui_type == WME_OUI_TYPE))) {
3721 WL_TRACE("Found WPA/WME oui. Do not add it\n");
3722 goto next;
3723 }
3724
3725 parsed_info = &vndr_ies->ie_info[vndr_ies->count];
3726
3727 /* save vndr ie information */
3728 parsed_info->ie_ptr = (char *)vndrie;
3729 parsed_info->ie_len = vndrie->len + TLV_HDR_LEN;
3730 memcpy(&parsed_info->vndrie, vndrie, sizeof(*vndrie));
3731
3732 vndr_ies->count++;
3733
3734 WL_TRACE("** OUI %02x %02x %02x, type 0x%02x\n",
3735 parsed_info->vndrie.oui[0],
3736 parsed_info->vndrie.oui[1],
3737 parsed_info->vndrie.oui[2],
3738 parsed_info->vndrie.oui_type);
3739
3740 if (vndr_ies->count >= MAX_VNDR_IE_NUMBER)
3741 break;
3742 next:
3743 remaining_len -= ie->len;
3744 if (remaining_len <= 2)
3745 ie = NULL;
3746 else
3747 ie = (struct brcmf_tlv *)(((u8 *)ie) + ie->len);
3748 }
3749 return err;
3750 }
3751
3752 static u32
3753 brcmf_vndr_ie(u8 *iebuf, s32 pktflag, u8 *ie_ptr, u32 ie_len, s8 *add_del_cmd)
3754 {
3755
3756 __le32 iecount_le;
3757 __le32 pktflag_le;
3758
3759 strncpy(iebuf, add_del_cmd, VNDR_IE_CMD_LEN - 1);
3760 iebuf[VNDR_IE_CMD_LEN - 1] = '\0';
3761
3762 iecount_le = cpu_to_le32(1);
3763 memcpy(&iebuf[VNDR_IE_COUNT_OFFSET], &iecount_le, sizeof(iecount_le));
3764
3765 pktflag_le = cpu_to_le32(pktflag);
3766 memcpy(&iebuf[VNDR_IE_PKTFLAG_OFFSET], &pktflag_le, sizeof(pktflag_le));
3767
3768 memcpy(&iebuf[VNDR_IE_VSIE_OFFSET], ie_ptr, ie_len);
3769
3770 return ie_len + VNDR_IE_HDR_SIZE;
3771 }
3772
3773 static s32
3774 brcmf_set_management_ie(struct brcmf_cfg80211_info *cfg,
3775 struct net_device *ndev, s32 pktflag,
3776 u8 *vndr_ie_buf, u32 vndr_ie_len)
3777 {
3778 struct brcmf_if *ifp = netdev_priv(ndev);
3779 s32 err = 0;
3780 u8 *iovar_ie_buf;
3781 u8 *curr_ie_buf;
3782 u8 *mgmt_ie_buf = NULL;
3783 int mgmt_ie_buf_len;
3784 u32 *mgmt_ie_len;
3785 u32 del_add_ie_buf_len = 0;
3786 u32 total_ie_buf_len = 0;
3787 u32 parsed_ie_buf_len = 0;
3788 struct parsed_vndr_ies old_vndr_ies;
3789 struct parsed_vndr_ies new_vndr_ies;
3790 struct parsed_vndr_ie_info *vndrie_info;
3791 s32 i;
3792 u8 *ptr;
3793 int remained_buf_len;
3794
3795 WL_TRACE("bssidx %d, pktflag : 0x%02X\n",
3796 brcmf_ndev_bssidx(ndev), pktflag);
3797 iovar_ie_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3798 if (!iovar_ie_buf)
3799 return -ENOMEM;
3800 curr_ie_buf = iovar_ie_buf;
3801 if (test_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state) ||
3802 test_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state)) {
3803 switch (pktflag) {
3804 case VNDR_IE_PRBRSP_FLAG:
3805 mgmt_ie_buf = cfg->ap_info->probe_res_ie;
3806 mgmt_ie_len = &cfg->ap_info->probe_res_ie_len;
3807 mgmt_ie_buf_len = sizeof(cfg->ap_info->probe_res_ie);
3808 break;
3809 case VNDR_IE_BEACON_FLAG:
3810 mgmt_ie_buf = cfg->ap_info->beacon_ie;
3811 mgmt_ie_len = &cfg->ap_info->beacon_ie_len;
3812 mgmt_ie_buf_len = sizeof(cfg->ap_info->beacon_ie);
3813 break;
3814 default:
3815 err = -EPERM;
3816 WL_ERR("not suitable type\n");
3817 goto exit;
3818 }
3819 } else {
3820 err = -EPERM;
3821 WL_ERR("not suitable type\n");
3822 goto exit;
3823 }
3824
3825 if (vndr_ie_len > mgmt_ie_buf_len) {
3826 err = -ENOMEM;
3827 WL_ERR("extra IE size too big\n");
3828 goto exit;
3829 }
3830
3831 /* parse and save new vndr_ie in curr_ie_buff before comparing it */
3832 if (vndr_ie_buf && vndr_ie_len && curr_ie_buf) {
3833 ptr = curr_ie_buf;
3834 brcmf_parse_vndr_ies(vndr_ie_buf, vndr_ie_len, &new_vndr_ies);
3835 for (i = 0; i < new_vndr_ies.count; i++) {
3836 vndrie_info = &new_vndr_ies.ie_info[i];
3837 memcpy(ptr + parsed_ie_buf_len, vndrie_info->ie_ptr,
3838 vndrie_info->ie_len);
3839 parsed_ie_buf_len += vndrie_info->ie_len;
3840 }
3841 }
3842
3843 if (mgmt_ie_buf != NULL) {
3844 if (parsed_ie_buf_len && (parsed_ie_buf_len == *mgmt_ie_len) &&
3845 (memcmp(mgmt_ie_buf, curr_ie_buf,
3846 parsed_ie_buf_len) == 0)) {
3847 WL_TRACE("Previous mgmt IE is equals to current IE");
3848 goto exit;
3849 }
3850
3851 /* parse old vndr_ie */
3852 brcmf_parse_vndr_ies(mgmt_ie_buf, *mgmt_ie_len, &old_vndr_ies);
3853
3854 /* make a command to delete old ie */
3855 for (i = 0; i < old_vndr_ies.count; i++) {
3856 vndrie_info = &old_vndr_ies.ie_info[i];
3857
3858 WL_TRACE("DEL ID : %d, Len: %d , OUI:%02x:%02x:%02x\n",
3859 vndrie_info->vndrie.id,
3860 vndrie_info->vndrie.len,
3861 vndrie_info->vndrie.oui[0],
3862 vndrie_info->vndrie.oui[1],
3863 vndrie_info->vndrie.oui[2]);
3864
3865 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3866 vndrie_info->ie_ptr,
3867 vndrie_info->ie_len,
3868 "del");
3869 curr_ie_buf += del_add_ie_buf_len;
3870 total_ie_buf_len += del_add_ie_buf_len;
3871 }
3872 }
3873
3874 *mgmt_ie_len = 0;
3875 /* Add if there is any extra IE */
3876 if (mgmt_ie_buf && parsed_ie_buf_len) {
3877 ptr = mgmt_ie_buf;
3878
3879 remained_buf_len = mgmt_ie_buf_len;
3880
3881 /* make a command to add new ie */
3882 for (i = 0; i < new_vndr_ies.count; i++) {
3883 vndrie_info = &new_vndr_ies.ie_info[i];
3884
3885 WL_TRACE("ADDED ID : %d, Len: %d, OUI:%02x:%02x:%02x\n",
3886 vndrie_info->vndrie.id,
3887 vndrie_info->vndrie.len,
3888 vndrie_info->vndrie.oui[0],
3889 vndrie_info->vndrie.oui[1],
3890 vndrie_info->vndrie.oui[2]);
3891
3892 del_add_ie_buf_len = brcmf_vndr_ie(curr_ie_buf, pktflag,
3893 vndrie_info->ie_ptr,
3894 vndrie_info->ie_len,
3895 "add");
3896 /* verify remained buf size before copy data */
3897 remained_buf_len -= vndrie_info->ie_len;
3898 if (remained_buf_len < 0) {
3899 WL_ERR("no space in mgmt_ie_buf: len left %d",
3900 remained_buf_len);
3901 break;
3902 }
3903
3904 /* save the parsed IE in wl struct */
3905 memcpy(ptr + (*mgmt_ie_len), vndrie_info->ie_ptr,
3906 vndrie_info->ie_len);
3907 *mgmt_ie_len += vndrie_info->ie_len;
3908
3909 curr_ie_buf += del_add_ie_buf_len;
3910 total_ie_buf_len += del_add_ie_buf_len;
3911 }
3912 }
3913 if (total_ie_buf_len) {
3914 err = brcmf_fil_bsscfg_data_set(ifp, "vndr_ie", iovar_ie_buf,
3915 total_ie_buf_len);
3916 if (err)
3917 WL_ERR("vndr ie set error : %d\n", err);
3918 }
3919
3920 exit:
3921 kfree(iovar_ie_buf);
3922 return err;
3923 }
3924
3925 static s32
3926 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev,
3927 struct cfg80211_ap_settings *settings)
3928 {
3929 s32 ie_offset;
3930 struct brcmf_if *ifp = netdev_priv(ndev);
3931 struct brcmf_tlv *ssid_ie;
3932 struct brcmf_ssid_le ssid_le;
3933 s32 err = -EPERM;
3934 struct brcmf_tlv *rsn_ie;
3935 struct brcmf_vs_tlv *wpa_ie;
3936 struct brcmf_join_params join_params;
3937 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
3938 s32 bssidx = 0;
3939
3940 WL_TRACE("channel_type=%d, beacon_interval=%d, dtim_period=%d,\n",
3941 settings->channel_type, settings->beacon_interval,
3942 settings->dtim_period);
3943 WL_TRACE("ssid=%s(%d), auth_type=%d, inactivity_timeout=%d\n",
3944 settings->ssid, settings->ssid_len, settings->auth_type,
3945 settings->inactivity_timeout);
3946
3947 if (!test_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state)) {
3948 WL_ERR("Not in AP creation mode\n");
3949 return -EPERM;
3950 }
3951
3952 memset(&ssid_le, 0, sizeof(ssid_le));
3953 if (settings->ssid == NULL || settings->ssid_len == 0) {
3954 ie_offset = DOT11_MGMT_HDR_LEN + DOT11_BCN_PRB_FIXED_LEN;
3955 ssid_ie = brcmf_parse_tlvs(
3956 (u8 *)&settings->beacon.head[ie_offset],
3957 settings->beacon.head_len - ie_offset,
3958 WLAN_EID_SSID);
3959 if (!ssid_ie)
3960 return -EINVAL;
3961
3962 memcpy(ssid_le.SSID, ssid_ie->data, ssid_ie->len);
3963 ssid_le.SSID_len = cpu_to_le32(ssid_ie->len);
3964 WL_TRACE("SSID is (%s) in Head\n", ssid_le.SSID);
3965 } else {
3966 memcpy(ssid_le.SSID, settings->ssid, settings->ssid_len);
3967 ssid_le.SSID_len = cpu_to_le32((u32)settings->ssid_len);
3968 }
3969
3970 brcmf_set_mpc(ndev, 0);
3971 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1);
3972 if (err < 0) {
3973 WL_ERR("BRCMF_C_DOWN error %d\n", err);
3974 goto exit;
3975 }
3976 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_INFRA, 1);
3977 if (err < 0) {
3978 WL_ERR("SET INFRA error %d\n", err);
3979 goto exit;
3980 }
3981 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_AP, 1);
3982 if (err < 0) {
3983 WL_ERR("setting AP mode failed %d\n", err);
3984 goto exit;
3985 }
3986
3987 /* find the RSN_IE */
3988 rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail,
3989 settings->beacon.tail_len, WLAN_EID_RSN);
3990
3991 /* find the WPA_IE */
3992 wpa_ie = brcmf_find_wpaie((u8 *)settings->beacon.tail,
3993 settings->beacon.tail_len);
3994
3995 kfree(cfg->ap_info->rsn_ie);
3996 cfg->ap_info->rsn_ie = NULL;
3997 kfree(cfg->ap_info->wpa_ie);
3998 cfg->ap_info->wpa_ie = NULL;
3999
4000 if ((wpa_ie != NULL || rsn_ie != NULL)) {
4001 WL_TRACE("WPA(2) IE is found\n");
4002 if (wpa_ie != NULL) {
4003 /* WPA IE */
4004 err = brcmf_configure_wpaie(ndev, wpa_ie, false,
4005 bssidx);
4006 if (err < 0)
4007 goto exit;
4008 cfg->ap_info->wpa_ie = kmemdup(wpa_ie,
4009 wpa_ie->len +
4010 TLV_HDR_LEN,
4011 GFP_KERNEL);
4012 } else {
4013 /* RSN IE */
4014 err = brcmf_configure_wpaie(ndev,
4015 (struct brcmf_vs_tlv *)rsn_ie, true, bssidx);
4016 if (err < 0)
4017 goto exit;
4018 cfg->ap_info->rsn_ie = kmemdup(rsn_ie,
4019 rsn_ie->len +
4020 TLV_HDR_LEN,
4021 GFP_KERNEL);
4022 }
4023 cfg->ap_info->security_mode = true;
4024 } else {
4025 WL_TRACE("No WPA(2) IEs found\n");
4026 brcmf_configure_opensecurity(ndev, bssidx);
4027 cfg->ap_info->security_mode = false;
4028 }
4029 /* Set Beacon IEs to FW */
4030 err = brcmf_set_management_ie(cfg, ndev,
4031 VNDR_IE_BEACON_FLAG,
4032 (u8 *)settings->beacon.tail,
4033 settings->beacon.tail_len);
4034 if (err)
4035 WL_ERR("Set Beacon IE Failed\n");
4036 else
4037 WL_TRACE("Applied Vndr IEs for Beacon\n");
4038
4039 /* Set Probe Response IEs to FW */
4040 err = brcmf_set_management_ie(cfg, ndev,
4041 VNDR_IE_PRBRSP_FLAG,
4042 (u8 *)settings->beacon.proberesp_ies,
4043 settings->beacon.proberesp_ies_len);
4044 if (err)
4045 WL_ERR("Set Probe Resp IE Failed\n");
4046 else
4047 WL_TRACE("Applied Vndr IEs for Probe Resp\n");
4048
4049 if (settings->beacon_interval) {
4050 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD,
4051 settings->beacon_interval);
4052 if (err < 0) {
4053 WL_ERR("Beacon Interval Set Error, %d\n", err);
4054 goto exit;
4055 }
4056 }
4057 if (settings->dtim_period) {
4058 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_DTIMPRD,
4059 settings->dtim_period);
4060 if (err < 0) {
4061 WL_ERR("DTIM Interval Set Error, %d\n", err);
4062 goto exit;
4063 }
4064 }
4065 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_UP, 1);
4066 if (err < 0) {
4067 WL_ERR("BRCMF_C_UP error (%d)\n", err);
4068 goto exit;
4069 }
4070
4071 memset(&join_params, 0, sizeof(join_params));
4072 /* join parameters starts with ssid */
4073 memcpy(&join_params.ssid_le, &ssid_le, sizeof(ssid_le));
4074 /* create softap */
4075 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_SSID,
4076 &join_params, sizeof(join_params));
4077 if (err < 0) {
4078 WL_ERR("SET SSID error (%d)\n", err);
4079 goto exit;
4080 }
4081 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4082 set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4083
4084 exit:
4085 if (err)
4086 brcmf_set_mpc(ndev, 1);
4087 return err;
4088 }
4089
4090 static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev)
4091 {
4092 struct brcmf_if *ifp = netdev_priv(ndev);
4093 struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
4094 s32 err = -EPERM;
4095
4096 WL_TRACE("Enter\n");
4097
4098 if (cfg->conf->mode == WL_MODE_AP) {
4099 /* Due to most likely deauths outstanding we sleep */
4100 /* first to make sure they get processed by fw. */
4101 msleep(400);
4102 err = brcmf_fil_cmd_int_set(netdev_priv(ndev),
4103 BRCMF_C_SET_AP, 0);
4104 if (err < 0) {
4105 WL_ERR("setting AP mode failed %d\n", err);
4106 goto exit;
4107 }
4108 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), BRCMF_C_UP, 0);
4109 if (err < 0) {
4110 WL_ERR("BRCMF_C_UP error %d\n", err);
4111 goto exit;
4112 }
4113 brcmf_set_mpc(ndev, 1);
4114 clear_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state);
4115 clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state);
4116 }
4117 exit:
4118 return err;
4119 }
4120
4121 static int
4122 brcmf_cfg80211_del_station(struct wiphy *wiphy, struct net_device *ndev,
4123 u8 *mac)
4124 {
4125 struct brcmf_scb_val_le scbval;
4126 struct brcmf_if *ifp = netdev_priv(ndev);
4127 s32 err;
4128
4129 if (!mac)
4130 return -EFAULT;
4131
4132 WL_TRACE("Enter %pM\n", mac);
4133
4134 if (!check_sys_up(ifp->vif))
4135 return -EIO;
4136
4137 memcpy(&scbval.ea, mac, ETH_ALEN);
4138 scbval.val = cpu_to_le32(WLAN_REASON_DEAUTH_LEAVING);
4139 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SCB_DEAUTHENTICATE_FOR_REASON,
4140 &scbval, sizeof(scbval));
4141 if (err)
4142 WL_ERR("SCB_DEAUTHENTICATE_FOR_REASON failed %d\n", err);
4143
4144 WL_TRACE("Exit\n");
4145 return err;
4146 }
4147
4148 static struct cfg80211_ops wl_cfg80211_ops = {
4149 .change_virtual_intf = brcmf_cfg80211_change_iface,
4150 .scan = brcmf_cfg80211_scan,
4151 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
4152 .join_ibss = brcmf_cfg80211_join_ibss,
4153 .leave_ibss = brcmf_cfg80211_leave_ibss,
4154 .get_station = brcmf_cfg80211_get_station,
4155 .set_tx_power = brcmf_cfg80211_set_tx_power,
4156 .get_tx_power = brcmf_cfg80211_get_tx_power,
4157 .add_key = brcmf_cfg80211_add_key,
4158 .del_key = brcmf_cfg80211_del_key,
4159 .get_key = brcmf_cfg80211_get_key,
4160 .set_default_key = brcmf_cfg80211_config_default_key,
4161 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
4162 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
4163 .set_bitrate_mask = brcmf_cfg80211_set_bitrate_mask,
4164 .connect = brcmf_cfg80211_connect,
4165 .disconnect = brcmf_cfg80211_disconnect,
4166 .suspend = brcmf_cfg80211_suspend,
4167 .resume = brcmf_cfg80211_resume,
4168 .set_pmksa = brcmf_cfg80211_set_pmksa,
4169 .del_pmksa = brcmf_cfg80211_del_pmksa,
4170 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
4171 .start_ap = brcmf_cfg80211_start_ap,
4172 .stop_ap = brcmf_cfg80211_stop_ap,
4173 .del_station = brcmf_cfg80211_del_station,
4174 #ifndef CONFIG_BRCMISCAN
4175 /* scheduled scan need e-scan, which is mutual exclusive with i-scan */
4176 .sched_scan_start = brcmf_cfg80211_sched_scan_start,
4177 .sched_scan_stop = brcmf_cfg80211_sched_scan_stop,
4178 #endif
4179 #ifdef CONFIG_NL80211_TESTMODE
4180 .testmode_cmd = brcmf_cfg80211_testmode
4181 #endif
4182 };
4183
4184 static s32 brcmf_mode_to_nl80211_iftype(s32 mode)
4185 {
4186 s32 err = 0;
4187
4188 switch (mode) {
4189 case WL_MODE_BSS:
4190 return NL80211_IFTYPE_STATION;
4191 case WL_MODE_IBSS:
4192 return NL80211_IFTYPE_ADHOC;
4193 default:
4194 return NL80211_IFTYPE_UNSPECIFIED;
4195 }
4196
4197 return err;
4198 }
4199
4200 static void brcmf_wiphy_pno_params(struct wiphy *wiphy)
4201 {
4202 #ifndef CONFIG_BRCMFISCAN
4203 /* scheduled scan settings */
4204 wiphy->max_sched_scan_ssids = BRCMF_PNO_MAX_PFN_COUNT;
4205 wiphy->max_match_sets = BRCMF_PNO_MAX_PFN_COUNT;
4206 wiphy->max_sched_scan_ie_len = BRCMF_SCAN_IE_LEN_MAX;
4207 wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
4208 #endif
4209 }
4210
4211 static struct wiphy *brcmf_setup_wiphy(struct device *phydev)
4212 {
4213 struct wiphy *wiphy;
4214 s32 err = 0;
4215
4216 wiphy = wiphy_new(&wl_cfg80211_ops, sizeof(struct brcmf_cfg80211_info));
4217 if (!wiphy) {
4218 WL_ERR("Could not allocate wiphy device\n");
4219 return ERR_PTR(-ENOMEM);
4220 }
4221 set_wiphy_dev(wiphy, phydev);
4222 wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
4223 wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
4224 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
4225 BIT(NL80211_IFTYPE_ADHOC) |
4226 BIT(NL80211_IFTYPE_AP);
4227 wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz;
4228 wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_a; /* Set
4229 * it as 11a by default.
4230 * This will be updated with
4231 * 11n phy tables in
4232 * "ifconfig up"
4233 * if phy has 11n capability
4234 */
4235 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
4236 wiphy->cipher_suites = __wl_cipher_suites;
4237 wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
4238 wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; /* enable power
4239 * save mode
4240 * by default
4241 */
4242 brcmf_wiphy_pno_params(wiphy);
4243 err = wiphy_register(wiphy);
4244 if (err < 0) {
4245 WL_ERR("Could not register wiphy device (%d)\n", err);
4246 wiphy_free(wiphy);
4247 return ERR_PTR(err);
4248 }
4249 return wiphy;
4250 }
4251
4252 static
4253 struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg,
4254 struct net_device *netdev,
4255 s32 mode, bool pm_block)
4256 {
4257 struct brcmf_cfg80211_vif *vif;
4258
4259 if (cfg->vif_cnt == BRCMF_IFACE_MAX_CNT)
4260 return ERR_PTR(-ENOSPC);
4261
4262 vif = kzalloc(sizeof(*vif), GFP_KERNEL);
4263 if (!vif)
4264 return ERR_PTR(-ENOMEM);
4265
4266 vif->wdev.wiphy = cfg->wiphy;
4267 vif->wdev.netdev = netdev;
4268 vif->wdev.iftype = brcmf_mode_to_nl80211_iftype(mode);
4269
4270 if (netdev) {
4271 vif->ifp = netdev_priv(netdev);
4272 netdev->ieee80211_ptr = &vif->wdev;
4273 SET_NETDEV_DEV(netdev, wiphy_dev(cfg->wiphy));
4274 }
4275
4276 vif->mode = mode;
4277 vif->pm_block = pm_block;
4278 vif->roam_off = -1;
4279
4280 brcmf_init_prof(&vif->profile);
4281
4282 list_add_tail(&vif->list, &cfg->vif_list);
4283 cfg->vif_cnt++;
4284 return vif;
4285 }
4286
4287 static void brcmf_free_vif(struct brcmf_cfg80211_vif *vif)
4288 {
4289 struct brcmf_cfg80211_info *cfg;
4290 struct wiphy *wiphy;
4291
4292 wiphy = vif->wdev.wiphy;
4293 cfg = wiphy_priv(wiphy);
4294 list_del(&vif->list);
4295 cfg->vif_cnt--;
4296
4297 kfree(vif);
4298 if (!cfg->vif_cnt) {
4299 wiphy_unregister(wiphy);
4300 wiphy_free(wiphy);
4301 }
4302 }
4303
4304 static bool brcmf_is_linkup(struct brcmf_cfg80211_info *cfg,
4305 const struct brcmf_event_msg *e)
4306 {
4307 u32 event = be32_to_cpu(e->event_type);
4308 u32 status = be32_to_cpu(e->status);
4309
4310 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
4311 WL_CONN("Processing set ssid\n");
4312 cfg->link_up = true;
4313 return true;
4314 }
4315
4316 return false;
4317 }
4318
4319 static bool brcmf_is_linkdown(struct brcmf_cfg80211_info *cfg,
4320 const struct brcmf_event_msg *e)
4321 {
4322 u32 event = be32_to_cpu(e->event_type);
4323 u16 flags = be16_to_cpu(e->flags);
4324
4325 if (event == BRCMF_E_LINK && (!(flags & BRCMF_EVENT_MSG_LINK))) {
4326 WL_CONN("Processing link down\n");
4327 return true;
4328 }
4329 return false;
4330 }
4331
4332 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_info *cfg,
4333 const struct brcmf_event_msg *e)
4334 {
4335 u32 event = be32_to_cpu(e->event_type);
4336 u32 status = be32_to_cpu(e->status);
4337
4338 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
4339 WL_CONN("Processing Link %s & no network found\n",
4340 be16_to_cpu(e->flags) & BRCMF_EVENT_MSG_LINK ?
4341 "up" : "down");
4342 return true;
4343 }
4344
4345 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
4346 WL_CONN("Processing connecting & no network found\n");
4347 return true;
4348 }
4349
4350 return false;
4351 }
4352
4353 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_info *cfg)
4354 {
4355 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4356
4357 kfree(conn_info->req_ie);
4358 conn_info->req_ie = NULL;
4359 conn_info->req_ie_len = 0;
4360 kfree(conn_info->resp_ie);
4361 conn_info->resp_ie = NULL;
4362 conn_info->resp_ie_len = 0;
4363 }
4364
4365 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_info *cfg)
4366 {
4367 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
4368 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
4369 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4370 u32 req_len;
4371 u32 resp_len;
4372 s32 err = 0;
4373
4374 brcmf_clear_assoc_ies(cfg);
4375
4376 err = brcmf_fil_iovar_data_get(ifp, "assoc_info",
4377 cfg->extra_buf, WL_ASSOC_INFO_MAX);
4378 if (err) {
4379 WL_ERR("could not get assoc info (%d)\n", err);
4380 return err;
4381 }
4382 assoc_info =
4383 (struct brcmf_cfg80211_assoc_ielen_le *)cfg->extra_buf;
4384 req_len = le32_to_cpu(assoc_info->req_len);
4385 resp_len = le32_to_cpu(assoc_info->resp_len);
4386 if (req_len) {
4387 err = brcmf_fil_iovar_data_get(ifp, "assoc_req_ies",
4388 cfg->extra_buf,
4389 WL_ASSOC_INFO_MAX);
4390 if (err) {
4391 WL_ERR("could not get assoc req (%d)\n", err);
4392 return err;
4393 }
4394 conn_info->req_ie_len = req_len;
4395 conn_info->req_ie =
4396 kmemdup(cfg->extra_buf, conn_info->req_ie_len,
4397 GFP_KERNEL);
4398 } else {
4399 conn_info->req_ie_len = 0;
4400 conn_info->req_ie = NULL;
4401 }
4402 if (resp_len) {
4403 err = brcmf_fil_iovar_data_get(ifp, "assoc_resp_ies",
4404 cfg->extra_buf,
4405 WL_ASSOC_INFO_MAX);
4406 if (err) {
4407 WL_ERR("could not get assoc resp (%d)\n", err);
4408 return err;
4409 }
4410 conn_info->resp_ie_len = resp_len;
4411 conn_info->resp_ie =
4412 kmemdup(cfg->extra_buf, conn_info->resp_ie_len,
4413 GFP_KERNEL);
4414 } else {
4415 conn_info->resp_ie_len = 0;
4416 conn_info->resp_ie = NULL;
4417 }
4418 WL_CONN("req len (%d) resp len (%d)\n",
4419 conn_info->req_ie_len, conn_info->resp_ie_len);
4420
4421 return err;
4422 }
4423
4424 static s32
4425 brcmf_bss_roaming_done(struct brcmf_cfg80211_info *cfg,
4426 struct net_device *ndev,
4427 const struct brcmf_event_msg *e)
4428 {
4429 struct brcmf_if *ifp = netdev_priv(ndev);
4430 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4431 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4432 struct wiphy *wiphy = cfg_to_wiphy(cfg);
4433 struct ieee80211_channel *notify_channel = NULL;
4434 struct ieee80211_supported_band *band;
4435 struct brcmf_bss_info_le *bi;
4436 u32 freq;
4437 s32 err = 0;
4438 u32 target_channel;
4439 u8 *buf;
4440
4441 WL_TRACE("Enter\n");
4442
4443 brcmf_get_assoc_ies(cfg);
4444 memcpy(profile->bssid, e->addr, ETH_ALEN);
4445 brcmf_update_bss_info(cfg);
4446
4447 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4448 if (buf == NULL) {
4449 err = -ENOMEM;
4450 goto done;
4451 }
4452
4453 /* data sent to dongle has to be little endian */
4454 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
4455 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO,
4456 buf, WL_BSS_INFO_MAX);
4457
4458 if (err)
4459 goto done;
4460
4461 bi = (struct brcmf_bss_info_le *)(buf + 4);
4462 target_channel = bi->ctl_ch ? bi->ctl_ch :
4463 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
4464
4465 if (target_channel <= CH_MAX_2G_CHANNEL)
4466 band = wiphy->bands[IEEE80211_BAND_2GHZ];
4467 else
4468 band = wiphy->bands[IEEE80211_BAND_5GHZ];
4469
4470 freq = ieee80211_channel_to_frequency(target_channel, band->band);
4471 notify_channel = ieee80211_get_channel(wiphy, freq);
4472
4473 done:
4474 kfree(buf);
4475 cfg80211_roamed(ndev, notify_channel, (u8 *)profile->bssid,
4476 conn_info->req_ie, conn_info->req_ie_len,
4477 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
4478 WL_CONN("Report roaming result\n");
4479
4480 set_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state);
4481 WL_TRACE("Exit\n");
4482 return err;
4483 }
4484
4485 static s32
4486 brcmf_bss_connect_done(struct brcmf_cfg80211_info *cfg,
4487 struct net_device *ndev, const struct brcmf_event_msg *e,
4488 bool completed)
4489 {
4490 struct brcmf_if *ifp = netdev_priv(ndev);
4491 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4492 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg);
4493 s32 err = 0;
4494
4495 WL_TRACE("Enter\n");
4496
4497 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4498 &ifp->vif->sme_state)) {
4499 if (completed) {
4500 brcmf_get_assoc_ies(cfg);
4501 memcpy(profile->bssid, e->addr, ETH_ALEN);
4502 brcmf_update_bss_info(cfg);
4503 }
4504 cfg80211_connect_result(ndev,
4505 (u8 *)profile->bssid,
4506 conn_info->req_ie,
4507 conn_info->req_ie_len,
4508 conn_info->resp_ie,
4509 conn_info->resp_ie_len,
4510 completed ? WLAN_STATUS_SUCCESS :
4511 WLAN_STATUS_AUTH_TIMEOUT,
4512 GFP_KERNEL);
4513 if (completed)
4514 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4515 &ifp->vif->sme_state);
4516 WL_CONN("Report connect result - connection %s\n",
4517 completed ? "succeeded" : "failed");
4518 }
4519 WL_TRACE("Exit\n");
4520 return err;
4521 }
4522
4523 static s32
4524 brcmf_notify_connect_status_ap(struct brcmf_cfg80211_info *cfg,
4525 struct net_device *ndev,
4526 const struct brcmf_event_msg *e, void *data)
4527 {
4528 s32 err = 0;
4529 u32 event = be32_to_cpu(e->event_type);
4530 u32 reason = be32_to_cpu(e->reason);
4531 u32 len = be32_to_cpu(e->datalen);
4532 static int generation;
4533
4534 struct station_info sinfo;
4535
4536 WL_CONN("event %d, reason %d\n", event, reason);
4537 memset(&sinfo, 0, sizeof(sinfo));
4538
4539 sinfo.filled = 0;
4540 if (((event == BRCMF_E_ASSOC_IND) || (event == BRCMF_E_REASSOC_IND)) &&
4541 reason == BRCMF_E_STATUS_SUCCESS) {
4542 sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
4543 if (!data) {
4544 WL_ERR("No IEs present in ASSOC/REASSOC_IND");
4545 return -EINVAL;
4546 }
4547 sinfo.assoc_req_ies = data;
4548 sinfo.assoc_req_ies_len = len;
4549 generation++;
4550 sinfo.generation = generation;
4551 cfg80211_new_sta(ndev, e->addr, &sinfo, GFP_ATOMIC);
4552 } else if ((event == BRCMF_E_DISASSOC_IND) ||
4553 (event == BRCMF_E_DEAUTH_IND) ||
4554 (event == BRCMF_E_DEAUTH)) {
4555 generation++;
4556 sinfo.generation = generation;
4557 cfg80211_del_sta(ndev, e->addr, GFP_ATOMIC);
4558 }
4559 return err;
4560 }
4561
4562 static s32
4563 brcmf_notify_connect_status(struct brcmf_cfg80211_info *cfg,
4564 struct net_device *ndev,
4565 const struct brcmf_event_msg *e, void *data)
4566 {
4567 struct brcmf_if *ifp = netdev_priv(ndev);
4568 struct brcmf_cfg80211_profile *profile = &ifp->vif->profile;
4569 s32 err = 0;
4570
4571 if (cfg->conf->mode == WL_MODE_AP) {
4572 err = brcmf_notify_connect_status_ap(cfg, ndev, e, data);
4573 } else if (brcmf_is_linkup(cfg, e)) {
4574 WL_CONN("Linkup\n");
4575 if (brcmf_is_ibssmode(cfg)) {
4576 memcpy(profile->bssid, e->addr, ETH_ALEN);
4577 wl_inform_ibss(cfg, ndev, e->addr);
4578 cfg80211_ibss_joined(ndev, e->addr, GFP_KERNEL);
4579 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4580 &ifp->vif->sme_state);
4581 set_bit(BRCMF_VIF_STATUS_CONNECTED,
4582 &ifp->vif->sme_state);
4583 } else
4584 brcmf_bss_connect_done(cfg, ndev, e, true);
4585 } else if (brcmf_is_linkdown(cfg, e)) {
4586 WL_CONN("Linkdown\n");
4587 if (brcmf_is_ibssmode(cfg)) {
4588 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4589 &ifp->vif->sme_state);
4590 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTED,
4591 &ifp->vif->sme_state))
4592 brcmf_link_down(cfg);
4593 } else {
4594 brcmf_bss_connect_done(cfg, ndev, e, false);
4595 if (test_and_clear_bit(BRCMF_VIF_STATUS_CONNECTED,
4596 &ifp->vif->sme_state)) {
4597 cfg80211_disconnected(ndev, 0, NULL, 0,
4598 GFP_KERNEL);
4599 brcmf_link_down(cfg);
4600 }
4601 }
4602 brcmf_init_prof(ndev_to_prof(ndev));
4603 } else if (brcmf_is_nonetwork(cfg, e)) {
4604 if (brcmf_is_ibssmode(cfg))
4605 clear_bit(BRCMF_VIF_STATUS_CONNECTING,
4606 &ifp->vif->sme_state);
4607 else
4608 brcmf_bss_connect_done(cfg, ndev, e, false);
4609 }
4610
4611 return err;
4612 }
4613
4614 static s32
4615 brcmf_notify_roaming_status(struct brcmf_cfg80211_info *cfg,
4616 struct net_device *ndev,
4617 const struct brcmf_event_msg *e, void *data)
4618 {
4619 struct brcmf_if *ifp = netdev_priv(ndev);
4620 s32 err = 0;
4621 u32 event = be32_to_cpu(e->event_type);
4622 u32 status = be32_to_cpu(e->status);
4623
4624 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
4625 if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state))
4626 brcmf_bss_roaming_done(cfg, ndev, e);
4627 else
4628 brcmf_bss_connect_done(cfg, ndev, e, true);
4629 }
4630
4631 return err;
4632 }
4633
4634 static s32
4635 brcmf_notify_mic_status(struct brcmf_cfg80211_info *cfg,
4636 struct net_device *ndev,
4637 const struct brcmf_event_msg *e, void *data)
4638 {
4639 u16 flags = be16_to_cpu(e->flags);
4640 enum nl80211_key_type key_type;
4641
4642 if (flags & BRCMF_EVENT_MSG_GROUP)
4643 key_type = NL80211_KEYTYPE_GROUP;
4644 else
4645 key_type = NL80211_KEYTYPE_PAIRWISE;
4646
4647 cfg80211_michael_mic_failure(ndev, (u8 *)&e->addr, key_type, -1,
4648 NULL, GFP_KERNEL);
4649
4650 return 0;
4651 }
4652
4653 static s32
4654 brcmf_notify_scan_status(struct brcmf_cfg80211_info *cfg,
4655 struct net_device *ndev,
4656 const struct brcmf_event_msg *e, void *data)
4657 {
4658 struct brcmf_if *ifp = netdev_priv(ndev);
4659 struct brcmf_channel_info_le channel_inform_le;
4660 struct brcmf_scan_results_le *bss_list_le;
4661 u32 len = WL_SCAN_BUF_MAX;
4662 s32 err = 0;
4663 bool scan_abort = false;
4664 u32 scan_channel;
4665
4666 WL_TRACE("Enter\n");
4667
4668 if (cfg->iscan_on && cfg->iscan_kickstart) {
4669 WL_TRACE("Exit\n");
4670 return brcmf_wakeup_iscan(cfg_to_iscan(cfg));
4671 }
4672
4673 if (!test_and_clear_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status)) {
4674 WL_ERR("Scan complete while device not scanning\n");
4675 scan_abort = true;
4676 err = -EINVAL;
4677 goto scan_done_out;
4678 }
4679
4680 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_CHANNEL,
4681 &channel_inform_le,
4682 sizeof(channel_inform_le));
4683 if (err) {
4684 WL_ERR("scan busy (%d)\n", err);
4685 scan_abort = true;
4686 goto scan_done_out;
4687 }
4688 scan_channel = le32_to_cpu(channel_inform_le.scan_channel);
4689 if (scan_channel)
4690 WL_CONN("channel_inform.scan_channel (%d)\n", scan_channel);
4691 cfg->bss_list = cfg->scan_results;
4692 bss_list_le = (struct brcmf_scan_results_le *) cfg->bss_list;
4693
4694 memset(cfg->scan_results, 0, len);
4695 bss_list_le->buflen = cpu_to_le32(len);
4696 err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_SCAN_RESULTS,
4697 cfg->scan_results, len);
4698 if (err) {
4699 WL_ERR("%s Scan_results error (%d)\n", ndev->name, err);
4700 err = -EINVAL;
4701 scan_abort = true;
4702 goto scan_done_out;
4703 }
4704 cfg->scan_results->buflen = le32_to_cpu(bss_list_le->buflen);
4705 cfg->scan_results->version = le32_to_cpu(bss_list_le->version);
4706 cfg->scan_results->count = le32_to_cpu(bss_list_le->count);
4707
4708 err = brcmf_inform_bss(cfg);
4709 if (err)
4710 scan_abort = true;
4711
4712 scan_done_out:
4713 if (cfg->scan_request) {
4714 WL_SCAN("calling cfg80211_scan_done\n");
4715 cfg80211_scan_done(cfg->scan_request, scan_abort);
4716 brcmf_set_mpc(ndev, 1);
4717 cfg->scan_request = NULL;
4718 }
4719
4720 WL_TRACE("Exit\n");
4721
4722 return err;
4723 }
4724
4725 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
4726 {
4727 conf->mode = (u32)-1;
4728 conf->frag_threshold = (u32)-1;
4729 conf->rts_threshold = (u32)-1;
4730 conf->retry_short = (u32)-1;
4731 conf->retry_long = (u32)-1;
4732 conf->tx_power = -1;
4733 }
4734
4735 static void brcmf_init_eloop_handler(struct brcmf_cfg80211_event_loop *el)
4736 {
4737 memset(el, 0, sizeof(*el));
4738 el->handler[BRCMF_E_SCAN_COMPLETE] = brcmf_notify_scan_status;
4739 el->handler[BRCMF_E_LINK] = brcmf_notify_connect_status;
4740 el->handler[BRCMF_E_DEAUTH_IND] = brcmf_notify_connect_status;
4741 el->handler[BRCMF_E_DEAUTH] = brcmf_notify_connect_status;
4742 el->handler[BRCMF_E_DISASSOC_IND] = brcmf_notify_connect_status;
4743 el->handler[BRCMF_E_ASSOC_IND] = brcmf_notify_connect_status;
4744 el->handler[BRCMF_E_REASSOC_IND] = brcmf_notify_connect_status;
4745 el->handler[BRCMF_E_ROAM] = brcmf_notify_roaming_status;
4746 el->handler[BRCMF_E_MIC_ERROR] = brcmf_notify_mic_status;
4747 el->handler[BRCMF_E_SET_SSID] = brcmf_notify_connect_status;
4748 el->handler[BRCMF_E_PFN_NET_FOUND] = brcmf_notify_sched_scan_results;
4749 }
4750
4751 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_info *cfg)
4752 {
4753 kfree(cfg->scan_results);
4754 cfg->scan_results = NULL;
4755 kfree(cfg->bss_info);
4756 cfg->bss_info = NULL;
4757 kfree(cfg->conf);
4758 cfg->conf = NULL;
4759 kfree(cfg->scan_req_int);
4760 cfg->scan_req_int = NULL;
4761 kfree(cfg->escan_ioctl_buf);
4762 cfg->escan_ioctl_buf = NULL;
4763 kfree(cfg->dcmd_buf);
4764 cfg->dcmd_buf = NULL;
4765 kfree(cfg->extra_buf);
4766 cfg->extra_buf = NULL;
4767 kfree(cfg->iscan);
4768 cfg->iscan = NULL;
4769 kfree(cfg->pmk_list);
4770 cfg->pmk_list = NULL;
4771 if (cfg->ap_info) {
4772 kfree(cfg->ap_info->wpa_ie);
4773 kfree(cfg->ap_info->rsn_ie);
4774 kfree(cfg->ap_info);
4775 cfg->ap_info = NULL;
4776 }
4777 }
4778
4779 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_info *cfg)
4780 {
4781 cfg->scan_results = kzalloc(WL_SCAN_BUF_MAX, GFP_KERNEL);
4782 if (!cfg->scan_results)
4783 goto init_priv_mem_out;
4784 cfg->conf = kzalloc(sizeof(*cfg->conf), GFP_KERNEL);
4785 if (!cfg->conf)
4786 goto init_priv_mem_out;
4787 cfg->bss_info = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
4788 if (!cfg->bss_info)
4789 goto init_priv_mem_out;
4790 cfg->scan_req_int = kzalloc(sizeof(*cfg->scan_req_int),
4791 GFP_KERNEL);
4792 if (!cfg->scan_req_int)
4793 goto init_priv_mem_out;
4794 cfg->escan_ioctl_buf = kzalloc(BRCMF_DCMD_MEDLEN, GFP_KERNEL);
4795 if (!cfg->escan_ioctl_buf)
4796 goto init_priv_mem_out;
4797 cfg->dcmd_buf = kzalloc(WL_DCMD_LEN_MAX, GFP_KERNEL);
4798 if (!cfg->dcmd_buf)
4799 goto init_priv_mem_out;
4800 cfg->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
4801 if (!cfg->extra_buf)
4802 goto init_priv_mem_out;
4803 cfg->iscan = kzalloc(sizeof(*cfg->iscan), GFP_KERNEL);
4804 if (!cfg->iscan)
4805 goto init_priv_mem_out;
4806 cfg->pmk_list = kzalloc(sizeof(*cfg->pmk_list), GFP_KERNEL);
4807 if (!cfg->pmk_list)
4808 goto init_priv_mem_out;
4809
4810 return 0;
4811
4812 init_priv_mem_out:
4813 brcmf_deinit_priv_mem(cfg);
4814
4815 return -ENOMEM;
4816 }
4817
4818 /*
4819 * retrieve first queued event from head
4820 */
4821
4822 static struct brcmf_cfg80211_event_q *brcmf_deq_event(
4823 struct brcmf_cfg80211_info *cfg)
4824 {
4825 struct brcmf_cfg80211_event_q *e = NULL;
4826
4827 spin_lock_irq(&cfg->evt_q_lock);
4828 if (!list_empty(&cfg->evt_q_list)) {
4829 e = list_first_entry(&cfg->evt_q_list,
4830 struct brcmf_cfg80211_event_q, evt_q_list);
4831 list_del(&e->evt_q_list);
4832 }
4833 spin_unlock_irq(&cfg->evt_q_lock);
4834
4835 return e;
4836 }
4837
4838 /*
4839 * push event to tail of the queue
4840 *
4841 * remark: this function may not sleep as it is called in atomic context.
4842 */
4843
4844 static s32
4845 brcmf_enq_event(struct brcmf_cfg80211_info *cfg, u32 event,
4846 const struct brcmf_event_msg *msg, void *data)
4847 {
4848 struct brcmf_cfg80211_event_q *e;
4849 s32 err = 0;
4850 ulong flags;
4851 u32 data_len;
4852 u32 total_len;
4853
4854 total_len = sizeof(struct brcmf_cfg80211_event_q);
4855 if (data)
4856 data_len = be32_to_cpu(msg->datalen);
4857 else
4858 data_len = 0;
4859 total_len += data_len;
4860 e = kzalloc(total_len, GFP_ATOMIC);
4861 if (!e)
4862 return -ENOMEM;
4863
4864 e->etype = event;
4865 memcpy(&e->emsg, msg, sizeof(struct brcmf_event_msg));
4866 if (data)
4867 memcpy(&e->edata, data, data_len);
4868
4869 spin_lock_irqsave(&cfg->evt_q_lock, flags);
4870 list_add_tail(&e->evt_q_list, &cfg->evt_q_list);
4871 spin_unlock_irqrestore(&cfg->evt_q_lock, flags);
4872
4873 return err;
4874 }
4875
4876 static void brcmf_put_event(struct brcmf_cfg80211_event_q *e)
4877 {
4878 kfree(e);
4879 }
4880
4881 static void brcmf_cfg80211_event_handler(struct work_struct *work)
4882 {
4883 struct brcmf_cfg80211_info *cfg =
4884 container_of(work, struct brcmf_cfg80211_info,
4885 event_work);
4886 struct brcmf_cfg80211_event_q *e;
4887
4888 e = brcmf_deq_event(cfg);
4889 if (unlikely(!e)) {
4890 WL_ERR("event queue empty...\n");
4891 return;
4892 }
4893
4894 do {
4895 WL_INFO("event type (%d)\n", e->etype);
4896 if (cfg->el.handler[e->etype])
4897 cfg->el.handler[e->etype](cfg,
4898 cfg_to_ndev(cfg),
4899 &e->emsg, e->edata);
4900 else
4901 WL_INFO("Unknown Event (%d): ignoring\n", e->etype);
4902 brcmf_put_event(e);
4903 } while ((e = brcmf_deq_event(cfg)));
4904
4905 }
4906
4907 static void brcmf_init_eq(struct brcmf_cfg80211_info *cfg)
4908 {
4909 spin_lock_init(&cfg->evt_q_lock);
4910 INIT_LIST_HEAD(&cfg->evt_q_list);
4911 }
4912
4913 static void brcmf_flush_eq(struct brcmf_cfg80211_info *cfg)
4914 {
4915 struct brcmf_cfg80211_event_q *e;
4916
4917 spin_lock_irq(&cfg->evt_q_lock);
4918 while (!list_empty(&cfg->evt_q_list)) {
4919 e = list_first_entry(&cfg->evt_q_list,
4920 struct brcmf_cfg80211_event_q, evt_q_list);
4921 list_del(&e->evt_q_list);
4922 kfree(e);
4923 }
4924 spin_unlock_irq(&cfg->evt_q_lock);
4925 }
4926
4927 static s32 wl_init_priv(struct brcmf_cfg80211_info *cfg)
4928 {
4929 s32 err = 0;
4930
4931 cfg->scan_request = NULL;
4932 cfg->pwr_save = true;
4933 #ifdef CONFIG_BRCMISCAN
4934 cfg->iscan_on = true; /* iscan on & off switch.
4935 we enable iscan per default */
4936 cfg->escan_on = false; /* escan on & off switch.
4937 we disable escan per default */
4938 #else
4939 cfg->iscan_on = false; /* iscan on & off switch.
4940 we disable iscan per default */
4941 cfg->escan_on = true; /* escan on & off switch.
4942 we enable escan per default */
4943 #endif
4944 cfg->roam_on = true; /* roam on & off switch.
4945 we enable roam per default */
4946
4947 cfg->iscan_kickstart = false;
4948 cfg->active_scan = true; /* we do active scan for
4949 specific scan per default */
4950 cfg->dongle_up = false; /* dongle is not up yet */
4951 brcmf_init_eq(cfg);
4952 err = brcmf_init_priv_mem(cfg);
4953 if (err)
4954 return err;
4955 INIT_WORK(&cfg->event_work, brcmf_cfg80211_event_handler);
4956 brcmf_init_eloop_handler(&cfg->el);
4957 mutex_init(&cfg->usr_sync);
4958 err = brcmf_init_iscan(cfg);
4959 if (err)
4960 return err;
4961 brcmf_init_escan(cfg);
4962 brcmf_init_conf(cfg->conf);
4963 brcmf_link_down(cfg);
4964
4965 return err;
4966 }
4967
4968 static void wl_deinit_priv(struct brcmf_cfg80211_info *cfg)
4969 {
4970 cancel_work_sync(&cfg->event_work);
4971 cfg->dongle_up = false; /* dongle down */
4972 brcmf_flush_eq(cfg);
4973 brcmf_link_down(cfg);
4974 brcmf_abort_scanning(cfg);
4975 brcmf_deinit_priv_mem(cfg);
4976 }
4977
4978 struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr)
4979 {
4980 struct net_device *ndev = drvr->iflist[0]->ndev;
4981 struct device *busdev = drvr->dev;
4982 struct brcmf_cfg80211_info *cfg;
4983 struct wiphy *wiphy;
4984 struct brcmf_cfg80211_vif *vif;
4985 struct brcmf_if *ifp;
4986 s32 err = 0;
4987
4988 if (!ndev) {
4989 WL_ERR("ndev is invalid\n");
4990 return NULL;
4991 }
4992
4993 ifp = netdev_priv(ndev);
4994 wiphy = brcmf_setup_wiphy(busdev);
4995 if (IS_ERR(wiphy))
4996 return NULL;
4997
4998 cfg = wiphy_priv(wiphy);
4999 cfg->wiphy = wiphy;
5000 cfg->pub = drvr;
5001 INIT_LIST_HEAD(&cfg->vif_list);
5002
5003 vif = brcmf_alloc_vif(cfg, ndev, WL_MODE_BSS, false);
5004 if (IS_ERR(vif)) {
5005 wiphy_free(wiphy);
5006 return NULL;
5007 }
5008
5009 err = wl_init_priv(cfg);
5010 if (err) {
5011 WL_ERR("Failed to init iwm_priv (%d)\n", err);
5012 goto cfg80211_attach_out;
5013 }
5014
5015 ifp->vif = vif;
5016 return cfg;
5017
5018 cfg80211_attach_out:
5019 brcmf_free_vif(vif);
5020 return NULL;
5021 }
5022
5023 void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg)
5024 {
5025 struct brcmf_cfg80211_vif *vif;
5026 struct brcmf_cfg80211_vif *tmp;
5027
5028 wl_deinit_priv(cfg);
5029 list_for_each_entry_safe(vif, tmp, &cfg->vif_list, list) {
5030 brcmf_free_vif(vif);
5031 }
5032 }
5033
5034 void
5035 brcmf_cfg80211_event(struct net_device *ndev,
5036 const struct brcmf_event_msg *e, void *data)
5037 {
5038 u32 event_type = be32_to_cpu(e->event_type);
5039 struct brcmf_cfg80211_info *cfg = ndev_to_cfg(ndev);
5040
5041 if (!brcmf_enq_event(cfg, event_type, e, data))
5042 schedule_work(&cfg->event_work);
5043 }
5044
5045 static s32 brcmf_dongle_eventmsg(struct net_device *ndev)
5046 {
5047 s8 eventmask[BRCMF_EVENTING_MASK_LEN];
5048 s32 err = 0;
5049
5050 WL_TRACE("Enter\n");
5051
5052 /* Setup event_msgs */
5053 err = brcmf_fil_iovar_data_get(netdev_priv(ndev), "event_msgs",
5054 eventmask, BRCMF_EVENTING_MASK_LEN);
5055 if (err) {
5056 WL_ERR("Get event_msgs error (%d)\n", err);
5057 goto dongle_eventmsg_out;
5058 }
5059
5060 setbit(eventmask, BRCMF_E_SET_SSID);
5061 setbit(eventmask, BRCMF_E_ROAM);
5062 setbit(eventmask, BRCMF_E_PRUNE);
5063 setbit(eventmask, BRCMF_E_AUTH);
5064 setbit(eventmask, BRCMF_E_REASSOC);
5065 setbit(eventmask, BRCMF_E_REASSOC_IND);
5066 setbit(eventmask, BRCMF_E_DEAUTH_IND);
5067 setbit(eventmask, BRCMF_E_DISASSOC_IND);
5068 setbit(eventmask, BRCMF_E_DISASSOC);
5069 setbit(eventmask, BRCMF_E_JOIN);
5070 setbit(eventmask, BRCMF_E_ASSOC_IND);
5071 setbit(eventmask, BRCMF_E_PSK_SUP);
5072 setbit(eventmask, BRCMF_E_LINK);
5073 setbit(eventmask, BRCMF_E_NDIS_LINK);
5074 setbit(eventmask, BRCMF_E_MIC_ERROR);
5075 setbit(eventmask, BRCMF_E_PMKID_CACHE);
5076 setbit(eventmask, BRCMF_E_TXFAIL);
5077 setbit(eventmask, BRCMF_E_JOIN_START);
5078 setbit(eventmask, BRCMF_E_SCAN_COMPLETE);
5079 setbit(eventmask, BRCMF_E_ESCAN_RESULT);
5080 setbit(eventmask, BRCMF_E_PFN_NET_FOUND);
5081
5082 err = brcmf_fil_iovar_data_set(netdev_priv(ndev), "event_msgs",
5083 eventmask, BRCMF_EVENTING_MASK_LEN);
5084 if (err) {
5085 WL_ERR("Set event_msgs error (%d)\n", err);
5086 goto dongle_eventmsg_out;
5087 }
5088
5089 dongle_eventmsg_out:
5090 WL_TRACE("Exit\n");
5091 return err;
5092 }
5093
5094 static s32
5095 brcmf_dongle_roam(struct net_device *ndev, u32 roamvar, u32 bcn_timeout)
5096 {
5097 struct brcmf_if *ifp = netdev_priv(ndev);
5098 s32 err = 0;
5099 __le32 roamtrigger[2];
5100 __le32 roam_delta[2];
5101
5102 /*
5103 * Setup timeout if Beacons are lost and roam is
5104 * off to report link down
5105 */
5106 if (roamvar) {
5107 err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout", bcn_timeout);
5108 if (err) {
5109 WL_ERR("bcn_timeout error (%d)\n", err);
5110 goto dongle_rom_out;
5111 }
5112 }
5113
5114 /*
5115 * Enable/Disable built-in roaming to allow supplicant
5116 * to take care of roaming
5117 */
5118 WL_INFO("Internal Roaming = %s\n", roamvar ? "Off" : "On");
5119 err = brcmf_fil_iovar_int_set(ifp, "roam_off", roamvar);
5120 if (err) {
5121 WL_ERR("roam_off error (%d)\n", err);
5122 goto dongle_rom_out;
5123 }
5124
5125 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
5126 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
5127 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_TRIGGER,
5128 (void *)roamtrigger, sizeof(roamtrigger));
5129 if (err) {
5130 WL_ERR("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
5131 goto dongle_rom_out;
5132 }
5133
5134 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
5135 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
5136 err = brcmf_fil_cmd_data_set(ifp, BRCMF_C_SET_ROAM_DELTA,
5137 (void *)roam_delta, sizeof(roam_delta));
5138 if (err) {
5139 WL_ERR("WLC_SET_ROAM_DELTA error (%d)\n", err);
5140 goto dongle_rom_out;
5141 }
5142
5143 dongle_rom_out:
5144 return err;
5145 }
5146
5147 static s32
5148 brcmf_dongle_scantime(struct net_device *ndev, s32 scan_assoc_time,
5149 s32 scan_unassoc_time, s32 scan_passive_time)
5150 {
5151 struct brcmf_if *ifp = netdev_priv(ndev);
5152 s32 err = 0;
5153
5154 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
5155 scan_assoc_time);
5156 if (err) {
5157 if (err == -EOPNOTSUPP)
5158 WL_INFO("Scan assoc time is not supported\n");
5159 else
5160 WL_ERR("Scan assoc time error (%d)\n", err);
5161 goto dongle_scantime_out;
5162 }
5163 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
5164 scan_unassoc_time);
5165 if (err) {
5166 if (err == -EOPNOTSUPP)
5167 WL_INFO("Scan unassoc time is not supported\n");
5168 else
5169 WL_ERR("Scan unassoc time error (%d)\n", err);
5170 goto dongle_scantime_out;
5171 }
5172
5173 err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_PASSIVE_TIME,
5174 scan_passive_time);
5175 if (err) {
5176 if (err == -EOPNOTSUPP)
5177 WL_INFO("Scan passive time is not supported\n");
5178 else
5179 WL_ERR("Scan passive time error (%d)\n", err);
5180 goto dongle_scantime_out;
5181 }
5182
5183 dongle_scantime_out:
5184 return err;
5185 }
5186
5187 static s32 wl_update_wiphybands(struct brcmf_cfg80211_info *cfg)
5188 {
5189 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5190 struct wiphy *wiphy;
5191 s32 phy_list;
5192 s8 phy;
5193 s32 err = 0;
5194
5195 err = brcmf_fil_cmd_data_get(ifp, BRCM_GET_PHYLIST,
5196 &phy_list, sizeof(phy_list));
5197 if (err) {
5198 WL_ERR("error (%d)\n", err);
5199 return err;
5200 }
5201
5202 phy = ((char *)&phy_list)[0];
5203 WL_INFO("%c phy\n", phy);
5204 if (phy == 'n' || phy == 'a') {
5205 wiphy = cfg_to_wiphy(cfg);
5206 wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_n;
5207 }
5208
5209 return err;
5210 }
5211
5212 static s32 brcmf_dongle_probecap(struct brcmf_cfg80211_info *cfg)
5213 {
5214 return wl_update_wiphybands(cfg);
5215 }
5216
5217 static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg)
5218 {
5219 struct net_device *ndev;
5220 struct wireless_dev *wdev;
5221 s32 power_mode;
5222 s32 err = 0;
5223
5224 if (cfg->dongle_up)
5225 return err;
5226
5227 ndev = cfg_to_ndev(cfg);
5228 wdev = ndev->ieee80211_ptr;
5229
5230 brcmf_dongle_scantime(ndev, WL_SCAN_CHANNEL_TIME,
5231 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
5232
5233 err = brcmf_dongle_eventmsg(ndev);
5234 if (err)
5235 goto default_conf_out;
5236
5237 power_mode = cfg->pwr_save ? PM_FAST : PM_OFF;
5238 err = brcmf_fil_cmd_int_set(netdev_priv(ndev), BRCMF_C_SET_PM,
5239 power_mode);
5240 if (err)
5241 goto default_conf_out;
5242 WL_INFO("power save set to %s\n",
5243 (power_mode ? "enabled" : "disabled"));
5244
5245 err = brcmf_dongle_roam(ndev, (cfg->roam_on ? 0 : 1),
5246 WL_BEACON_TIMEOUT);
5247 if (err)
5248 goto default_conf_out;
5249 err = brcmf_cfg80211_change_iface(wdev->wiphy, ndev, wdev->iftype,
5250 NULL, NULL);
5251 if (err && err != -EINPROGRESS)
5252 goto default_conf_out;
5253 err = brcmf_dongle_probecap(cfg);
5254 if (err)
5255 goto default_conf_out;
5256
5257 /* -EINPROGRESS: Call commit handler */
5258
5259 default_conf_out:
5260
5261 cfg->dongle_up = true;
5262
5263 return err;
5264
5265 }
5266
5267 static int brcmf_debugfs_add_netdev_params(struct brcmf_cfg80211_info *cfg)
5268 {
5269 struct net_device *ndev = cfg_to_ndev(cfg);
5270 struct brcmf_cfg80211_profile *profile = ndev_to_prof(ndev);
5271 char buf[10+IFNAMSIZ];
5272 struct dentry *fd;
5273 s32 err = 0;
5274
5275 sprintf(buf, "netdev:%s", ndev->name);
5276 cfg->debugfsdir = debugfs_create_dir(buf,
5277 cfg_to_wiphy(cfg)->debugfsdir);
5278
5279 fd = debugfs_create_u16("beacon_int", S_IRUGO, cfg->debugfsdir,
5280 (u16 *)&profile->beacon_interval);
5281 if (!fd) {
5282 err = -ENOMEM;
5283 goto err_out;
5284 }
5285
5286 fd = debugfs_create_u8("dtim_period", S_IRUGO, cfg->debugfsdir,
5287 (u8 *)&profile->dtim_period);
5288 if (!fd) {
5289 err = -ENOMEM;
5290 goto err_out;
5291 }
5292
5293 err_out:
5294 return err;
5295 }
5296
5297 static void brcmf_debugfs_remove_netdev(struct brcmf_cfg80211_info *cfg)
5298 {
5299 debugfs_remove_recursive(cfg->debugfsdir);
5300 cfg->debugfsdir = NULL;
5301 }
5302
5303 static s32 __brcmf_cfg80211_up(struct brcmf_cfg80211_info *cfg)
5304 {
5305 struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
5306 s32 err = 0;
5307
5308 set_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5309
5310 brcmf_debugfs_add_netdev_params(cfg);
5311
5312 err = brcmf_config_dongle(cfg);
5313 if (err)
5314 return err;
5315
5316 brcmf_invoke_iscan(cfg);
5317
5318 return err;
5319 }
5320
5321 static s32 __brcmf_cfg80211_down(struct brcmf_cfg80211_info *cfg)
5322 {
5323 struct net_device *ndev = cfg_to_ndev(cfg);
5324 struct brcmf_if *ifp = netdev_priv(ndev);
5325
5326 /*
5327 * While going down, if associated with AP disassociate
5328 * from AP to save power
5329 */
5330 if ((test_bit(BRCMF_VIF_STATUS_CONNECTED, &ifp->vif->sme_state) ||
5331 test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) &&
5332 check_sys_up(ifp->vif)) {
5333 WL_INFO("Disassociating from AP");
5334 brcmf_link_down(cfg);
5335
5336 /* Make sure WPA_Supplicant receives all the event
5337 generated due to DISASSOC call to the fw to keep
5338 the state fw and WPA_Supplicant state consistent
5339 */
5340 brcmf_delay(500);
5341 }
5342
5343 brcmf_abort_scanning(cfg);
5344 clear_bit(BRCMF_VIF_STATUS_READY, &ifp->vif->sme_state);
5345
5346 brcmf_debugfs_remove_netdev(cfg);
5347
5348 return 0;
5349 }
5350
5351 s32 brcmf_cfg80211_up(struct brcmf_cfg80211_info *cfg)
5352 {
5353 s32 err = 0;
5354
5355 mutex_lock(&cfg->usr_sync);
5356 err = __brcmf_cfg80211_up(cfg);
5357 mutex_unlock(&cfg->usr_sync);
5358
5359 return err;
5360 }
5361
5362 s32 brcmf_cfg80211_down(struct brcmf_cfg80211_info *cfg)
5363 {
5364 s32 err = 0;
5365
5366 mutex_lock(&cfg->usr_sync);
5367 err = __brcmf_cfg80211_down(cfg);
5368 mutex_unlock(&cfg->usr_sync);
5369
5370 return err;
5371 }
5372
Linux kernel - Deliverables
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