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[mirror_ubuntu-bionic-kernel.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
39 #define BRCMF_ASSOC_PARAMS_FIXED_SIZE \
40 (sizeof(struct brcmf_assoc_params_le) - sizeof(u16))
41
42 static const u8 ether_bcast[ETH_ALEN] = {255, 255, 255, 255, 255, 255};
43
44 static u32 brcmf_dbg_level = WL_DBG_ERR;
45
46 static void brcmf_set_drvdata(struct brcmf_cfg80211_dev *dev, void *data)
47 {
48 dev->driver_data = data;
49 }
50
51 static void *brcmf_get_drvdata(struct brcmf_cfg80211_dev *dev)
52 {
53 void *data = NULL;
54
55 if (dev)
56 data = dev->driver_data;
57 return data;
58 }
59
60 static
61 struct brcmf_cfg80211_priv *brcmf_priv_get(struct brcmf_cfg80211_dev *cfg_dev)
62 {
63 struct brcmf_cfg80211_iface *ci = brcmf_get_drvdata(cfg_dev);
64 return ci->cfg_priv;
65 }
66
67 static bool check_sys_up(struct wiphy *wiphy)
68 {
69 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
70 if (!test_bit(WL_STATUS_READY, &cfg_priv->status)) {
71 WL_INFO("device is not ready : status (%d)\n",
72 (int)cfg_priv->status);
73 return false;
74 }
75 return true;
76 }
77
78 #define CHAN2G(_channel, _freq, _flags) { \
79 .band = IEEE80211_BAND_2GHZ, \
80 .center_freq = (_freq), \
81 .hw_value = (_channel), \
82 .flags = (_flags), \
83 .max_antenna_gain = 0, \
84 .max_power = 30, \
85 }
86
87 #define CHAN5G(_channel, _flags) { \
88 .band = IEEE80211_BAND_5GHZ, \
89 .center_freq = 5000 + (5 * (_channel)), \
90 .hw_value = (_channel), \
91 .flags = (_flags), \
92 .max_antenna_gain = 0, \
93 .max_power = 30, \
94 }
95
96 #define RATE_TO_BASE100KBPS(rate) (((rate) * 10) / 2)
97 #define RATETAB_ENT(_rateid, _flags) \
98 { \
99 .bitrate = RATE_TO_BASE100KBPS(_rateid), \
100 .hw_value = (_rateid), \
101 .flags = (_flags), \
102 }
103
104 static struct ieee80211_rate __wl_rates[] = {
105 RATETAB_ENT(BRCM_RATE_1M, 0),
106 RATETAB_ENT(BRCM_RATE_2M, IEEE80211_RATE_SHORT_PREAMBLE),
107 RATETAB_ENT(BRCM_RATE_5M5, IEEE80211_RATE_SHORT_PREAMBLE),
108 RATETAB_ENT(BRCM_RATE_11M, IEEE80211_RATE_SHORT_PREAMBLE),
109 RATETAB_ENT(BRCM_RATE_6M, 0),
110 RATETAB_ENT(BRCM_RATE_9M, 0),
111 RATETAB_ENT(BRCM_RATE_12M, 0),
112 RATETAB_ENT(BRCM_RATE_18M, 0),
113 RATETAB_ENT(BRCM_RATE_24M, 0),
114 RATETAB_ENT(BRCM_RATE_36M, 0),
115 RATETAB_ENT(BRCM_RATE_48M, 0),
116 RATETAB_ENT(BRCM_RATE_54M, 0),
117 };
118
119 #define wl_a_rates (__wl_rates + 4)
120 #define wl_a_rates_size 8
121 #define wl_g_rates (__wl_rates + 0)
122 #define wl_g_rates_size 12
123
124 static struct ieee80211_channel __wl_2ghz_channels[] = {
125 CHAN2G(1, 2412, 0),
126 CHAN2G(2, 2417, 0),
127 CHAN2G(3, 2422, 0),
128 CHAN2G(4, 2427, 0),
129 CHAN2G(5, 2432, 0),
130 CHAN2G(6, 2437, 0),
131 CHAN2G(7, 2442, 0),
132 CHAN2G(8, 2447, 0),
133 CHAN2G(9, 2452, 0),
134 CHAN2G(10, 2457, 0),
135 CHAN2G(11, 2462, 0),
136 CHAN2G(12, 2467, 0),
137 CHAN2G(13, 2472, 0),
138 CHAN2G(14, 2484, 0),
139 };
140
141 static struct ieee80211_channel __wl_5ghz_a_channels[] = {
142 CHAN5G(34, 0), CHAN5G(36, 0),
143 CHAN5G(38, 0), CHAN5G(40, 0),
144 CHAN5G(42, 0), CHAN5G(44, 0),
145 CHAN5G(46, 0), CHAN5G(48, 0),
146 CHAN5G(52, 0), CHAN5G(56, 0),
147 CHAN5G(60, 0), CHAN5G(64, 0),
148 CHAN5G(100, 0), CHAN5G(104, 0),
149 CHAN5G(108, 0), CHAN5G(112, 0),
150 CHAN5G(116, 0), CHAN5G(120, 0),
151 CHAN5G(124, 0), CHAN5G(128, 0),
152 CHAN5G(132, 0), CHAN5G(136, 0),
153 CHAN5G(140, 0), CHAN5G(149, 0),
154 CHAN5G(153, 0), CHAN5G(157, 0),
155 CHAN5G(161, 0), CHAN5G(165, 0),
156 CHAN5G(184, 0), CHAN5G(188, 0),
157 CHAN5G(192, 0), CHAN5G(196, 0),
158 CHAN5G(200, 0), CHAN5G(204, 0),
159 CHAN5G(208, 0), CHAN5G(212, 0),
160 CHAN5G(216, 0),
161 };
162
163 static struct ieee80211_channel __wl_5ghz_n_channels[] = {
164 CHAN5G(32, 0), CHAN5G(34, 0),
165 CHAN5G(36, 0), CHAN5G(38, 0),
166 CHAN5G(40, 0), CHAN5G(42, 0),
167 CHAN5G(44, 0), CHAN5G(46, 0),
168 CHAN5G(48, 0), CHAN5G(50, 0),
169 CHAN5G(52, 0), CHAN5G(54, 0),
170 CHAN5G(56, 0), CHAN5G(58, 0),
171 CHAN5G(60, 0), CHAN5G(62, 0),
172 CHAN5G(64, 0), CHAN5G(66, 0),
173 CHAN5G(68, 0), CHAN5G(70, 0),
174 CHAN5G(72, 0), CHAN5G(74, 0),
175 CHAN5G(76, 0), CHAN5G(78, 0),
176 CHAN5G(80, 0), CHAN5G(82, 0),
177 CHAN5G(84, 0), CHAN5G(86, 0),
178 CHAN5G(88, 0), CHAN5G(90, 0),
179 CHAN5G(92, 0), CHAN5G(94, 0),
180 CHAN5G(96, 0), CHAN5G(98, 0),
181 CHAN5G(100, 0), CHAN5G(102, 0),
182 CHAN5G(104, 0), CHAN5G(106, 0),
183 CHAN5G(108, 0), CHAN5G(110, 0),
184 CHAN5G(112, 0), CHAN5G(114, 0),
185 CHAN5G(116, 0), CHAN5G(118, 0),
186 CHAN5G(120, 0), CHAN5G(122, 0),
187 CHAN5G(124, 0), CHAN5G(126, 0),
188 CHAN5G(128, 0), CHAN5G(130, 0),
189 CHAN5G(132, 0), CHAN5G(134, 0),
190 CHAN5G(136, 0), CHAN5G(138, 0),
191 CHAN5G(140, 0), CHAN5G(142, 0),
192 CHAN5G(144, 0), CHAN5G(145, 0),
193 CHAN5G(146, 0), CHAN5G(147, 0),
194 CHAN5G(148, 0), CHAN5G(149, 0),
195 CHAN5G(150, 0), CHAN5G(151, 0),
196 CHAN5G(152, 0), CHAN5G(153, 0),
197 CHAN5G(154, 0), CHAN5G(155, 0),
198 CHAN5G(156, 0), CHAN5G(157, 0),
199 CHAN5G(158, 0), CHAN5G(159, 0),
200 CHAN5G(160, 0), CHAN5G(161, 0),
201 CHAN5G(162, 0), CHAN5G(163, 0),
202 CHAN5G(164, 0), CHAN5G(165, 0),
203 CHAN5G(166, 0), CHAN5G(168, 0),
204 CHAN5G(170, 0), CHAN5G(172, 0),
205 CHAN5G(174, 0), CHAN5G(176, 0),
206 CHAN5G(178, 0), CHAN5G(180, 0),
207 CHAN5G(182, 0), CHAN5G(184, 0),
208 CHAN5G(186, 0), CHAN5G(188, 0),
209 CHAN5G(190, 0), CHAN5G(192, 0),
210 CHAN5G(194, 0), CHAN5G(196, 0),
211 CHAN5G(198, 0), CHAN5G(200, 0),
212 CHAN5G(202, 0), CHAN5G(204, 0),
213 CHAN5G(206, 0), CHAN5G(208, 0),
214 CHAN5G(210, 0), CHAN5G(212, 0),
215 CHAN5G(214, 0), CHAN5G(216, 0),
216 CHAN5G(218, 0), CHAN5G(220, 0),
217 CHAN5G(222, 0), CHAN5G(224, 0),
218 CHAN5G(226, 0), CHAN5G(228, 0),
219 };
220
221 static struct ieee80211_supported_band __wl_band_2ghz = {
222 .band = IEEE80211_BAND_2GHZ,
223 .channels = __wl_2ghz_channels,
224 .n_channels = ARRAY_SIZE(__wl_2ghz_channels),
225 .bitrates = wl_g_rates,
226 .n_bitrates = wl_g_rates_size,
227 };
228
229 static struct ieee80211_supported_band __wl_band_5ghz_a = {
230 .band = IEEE80211_BAND_5GHZ,
231 .channels = __wl_5ghz_a_channels,
232 .n_channels = ARRAY_SIZE(__wl_5ghz_a_channels),
233 .bitrates = wl_a_rates,
234 .n_bitrates = wl_a_rates_size,
235 };
236
237 static struct ieee80211_supported_band __wl_band_5ghz_n = {
238 .band = IEEE80211_BAND_5GHZ,
239 .channels = __wl_5ghz_n_channels,
240 .n_channels = ARRAY_SIZE(__wl_5ghz_n_channels),
241 .bitrates = wl_a_rates,
242 .n_bitrates = wl_a_rates_size,
243 };
244
245 static const u32 __wl_cipher_suites[] = {
246 WLAN_CIPHER_SUITE_WEP40,
247 WLAN_CIPHER_SUITE_WEP104,
248 WLAN_CIPHER_SUITE_TKIP,
249 WLAN_CIPHER_SUITE_CCMP,
250 WLAN_CIPHER_SUITE_AES_CMAC,
251 };
252
253 /* tag_ID/length/value_buffer tuple */
254 struct brcmf_tlv {
255 u8 id;
256 u8 len;
257 u8 data[1];
258 };
259
260 /* Quarter dBm units to mW
261 * Table starts at QDBM_OFFSET, so the first entry is mW for qdBm=153
262 * Table is offset so the last entry is largest mW value that fits in
263 * a u16.
264 */
265
266 #define QDBM_OFFSET 153 /* Offset for first entry */
267 #define QDBM_TABLE_LEN 40 /* Table size */
268
269 /* Smallest mW value that will round up to the first table entry, QDBM_OFFSET.
270 * Value is ( mW(QDBM_OFFSET - 1) + mW(QDBM_OFFSET) ) / 2
271 */
272 #define QDBM_TABLE_LOW_BOUND 6493 /* Low bound */
273
274 /* Largest mW value that will round down to the last table entry,
275 * QDBM_OFFSET + QDBM_TABLE_LEN-1.
276 * Value is ( mW(QDBM_OFFSET + QDBM_TABLE_LEN - 1) +
277 * mW(QDBM_OFFSET + QDBM_TABLE_LEN) ) / 2.
278 */
279 #define QDBM_TABLE_HIGH_BOUND 64938 /* High bound */
280
281 static const u16 nqdBm_to_mW_map[QDBM_TABLE_LEN] = {
282 /* qdBm: +0 +1 +2 +3 +4 +5 +6 +7 */
283 /* 153: */ 6683, 7079, 7499, 7943, 8414, 8913, 9441, 10000,
284 /* 161: */ 10593, 11220, 11885, 12589, 13335, 14125, 14962, 15849,
285 /* 169: */ 16788, 17783, 18836, 19953, 21135, 22387, 23714, 25119,
286 /* 177: */ 26607, 28184, 29854, 31623, 33497, 35481, 37584, 39811,
287 /* 185: */ 42170, 44668, 47315, 50119, 53088, 56234, 59566, 63096
288 };
289
290 static u16 brcmf_qdbm_to_mw(u8 qdbm)
291 {
292 uint factor = 1;
293 int idx = qdbm - QDBM_OFFSET;
294
295 if (idx >= QDBM_TABLE_LEN)
296 /* clamp to max u16 mW value */
297 return 0xFFFF;
298
299 /* scale the qdBm index up to the range of the table 0-40
300 * where an offset of 40 qdBm equals a factor of 10 mW.
301 */
302 while (idx < 0) {
303 idx += 40;
304 factor *= 10;
305 }
306
307 /* return the mW value scaled down to the correct factor of 10,
308 * adding in factor/2 to get proper rounding.
309 */
310 return (nqdBm_to_mW_map[idx] + factor / 2) / factor;
311 }
312
313 static u8 brcmf_mw_to_qdbm(u16 mw)
314 {
315 u8 qdbm;
316 int offset;
317 uint mw_uint = mw;
318 uint boundary;
319
320 /* handle boundary case */
321 if (mw_uint <= 1)
322 return 0;
323
324 offset = QDBM_OFFSET;
325
326 /* move mw into the range of the table */
327 while (mw_uint < QDBM_TABLE_LOW_BOUND) {
328 mw_uint *= 10;
329 offset -= 40;
330 }
331
332 for (qdbm = 0; qdbm < QDBM_TABLE_LEN - 1; qdbm++) {
333 boundary = nqdBm_to_mW_map[qdbm] + (nqdBm_to_mW_map[qdbm + 1] -
334 nqdBm_to_mW_map[qdbm]) / 2;
335 if (mw_uint < boundary)
336 break;
337 }
338
339 qdbm += (u8) offset;
340
341 return qdbm;
342 }
343
344 /* function for reading/writing a single u32 from/to the dongle */
345 static int
346 brcmf_exec_dcmd_u32(struct net_device *ndev, u32 cmd, u32 *par)
347 {
348 int err;
349 __le32 par_le = cpu_to_le32(*par);
350
351 err = brcmf_exec_dcmd(ndev, cmd, &par_le, sizeof(__le32));
352 *par = le32_to_cpu(par_le);
353
354 return err;
355 }
356
357 static void convert_key_from_CPU(struct brcmf_wsec_key *key,
358 struct brcmf_wsec_key_le *key_le)
359 {
360 key_le->index = cpu_to_le32(key->index);
361 key_le->len = cpu_to_le32(key->len);
362 key_le->algo = cpu_to_le32(key->algo);
363 key_le->flags = cpu_to_le32(key->flags);
364 key_le->rxiv.hi = cpu_to_le32(key->rxiv.hi);
365 key_le->rxiv.lo = cpu_to_le16(key->rxiv.lo);
366 key_le->iv_initialized = cpu_to_le32(key->iv_initialized);
367 memcpy(key_le->data, key->data, sizeof(key->data));
368 memcpy(key_le->ea, key->ea, sizeof(key->ea));
369 }
370
371 static int send_key_to_dongle(struct net_device *ndev,
372 struct brcmf_wsec_key *key)
373 {
374 int err;
375 struct brcmf_wsec_key_le key_le;
376
377 convert_key_from_CPU(key, &key_le);
378 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_KEY, &key_le, sizeof(key_le));
379 if (err)
380 WL_ERR("WLC_SET_KEY error (%d)\n", err);
381 return err;
382 }
383
384 static s32
385 brcmf_cfg80211_change_iface(struct wiphy *wiphy, struct net_device *ndev,
386 enum nl80211_iftype type, u32 *flags,
387 struct vif_params *params)
388 {
389 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
390 struct wireless_dev *wdev;
391 s32 infra = 0;
392 s32 err = 0;
393
394 WL_TRACE("Enter\n");
395 if (!check_sys_up(wiphy))
396 return -EIO;
397
398 switch (type) {
399 case NL80211_IFTYPE_MONITOR:
400 case NL80211_IFTYPE_WDS:
401 WL_ERR("type (%d) : currently we do not support this type\n",
402 type);
403 return -EOPNOTSUPP;
404 case NL80211_IFTYPE_ADHOC:
405 cfg_priv->conf->mode = WL_MODE_IBSS;
406 infra = 0;
407 break;
408 case NL80211_IFTYPE_STATION:
409 cfg_priv->conf->mode = WL_MODE_BSS;
410 infra = 1;
411 break;
412 default:
413 err = -EINVAL;
414 goto done;
415 }
416
417 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_INFRA, &infra);
418 if (err) {
419 WL_ERR("WLC_SET_INFRA error (%d)\n", err);
420 err = -EAGAIN;
421 } else {
422 wdev = ndev->ieee80211_ptr;
423 wdev->iftype = type;
424 }
425
426 WL_INFO("IF Type = %s\n",
427 (cfg_priv->conf->mode == WL_MODE_IBSS) ? "Adhoc" : "Infra");
428
429 done:
430 WL_TRACE("Exit\n");
431
432 return err;
433 }
434
435 static s32 brcmf_dev_intvar_set(struct net_device *ndev, s8 *name, s32 val)
436 {
437 s8 buf[BRCMF_DCMD_SMLEN];
438 u32 len;
439 s32 err = 0;
440 __le32 val_le;
441
442 val_le = cpu_to_le32(val);
443 len = brcmf_c_mkiovar(name, (char *)(&val_le), sizeof(val_le), buf,
444 sizeof(buf));
445 BUG_ON(!len);
446
447 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, buf, len);
448 if (err)
449 WL_ERR("error (%d)\n", err);
450
451 return err;
452 }
453
454 static s32
455 brcmf_dev_intvar_get(struct net_device *ndev, s8 *name, s32 *retval)
456 {
457 union {
458 s8 buf[BRCMF_DCMD_SMLEN];
459 __le32 val;
460 } var;
461 u32 len;
462 u32 data_null;
463 s32 err = 0;
464
465 len =
466 brcmf_c_mkiovar(name, (char *)(&data_null), 0, (char *)(&var),
467 sizeof(var.buf));
468 BUG_ON(!len);
469 err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, &var, len);
470 if (err)
471 WL_ERR("error (%d)\n", err);
472
473 *retval = le32_to_cpu(var.val);
474
475 return err;
476 }
477
478 static void brcmf_set_mpc(struct net_device *ndev, int mpc)
479 {
480 s32 err = 0;
481 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
482
483 if (test_bit(WL_STATUS_READY, &cfg_priv->status)) {
484 err = brcmf_dev_intvar_set(ndev, "mpc", mpc);
485 if (err) {
486 WL_ERR("fail to set mpc\n");
487 return;
488 }
489 WL_INFO("MPC : %d\n", mpc);
490 }
491 }
492
493 static void wl_iscan_prep(struct brcmf_scan_params_le *params_le,
494 struct brcmf_ssid *ssid)
495 {
496 memcpy(params_le->bssid, ether_bcast, ETH_ALEN);
497 params_le->bss_type = DOT11_BSSTYPE_ANY;
498 params_le->scan_type = 0;
499 params_le->channel_num = 0;
500 params_le->nprobes = cpu_to_le32(-1);
501 params_le->active_time = cpu_to_le32(-1);
502 params_le->passive_time = cpu_to_le32(-1);
503 params_le->home_time = cpu_to_le32(-1);
504 if (ssid && ssid->SSID_len)
505 memcpy(&params_le->ssid_le, ssid, sizeof(struct brcmf_ssid));
506 }
507
508 static s32
509 brcmf_dev_iovar_setbuf(struct net_device *ndev, s8 * iovar, void *param,
510 s32 paramlen, void *bufptr, s32 buflen)
511 {
512 s32 iolen;
513
514 iolen = brcmf_c_mkiovar(iovar, param, paramlen, bufptr, buflen);
515 BUG_ON(!iolen);
516
517 return brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, bufptr, iolen);
518 }
519
520 static s32
521 brcmf_dev_iovar_getbuf(struct net_device *ndev, s8 * iovar, void *param,
522 s32 paramlen, void *bufptr, s32 buflen)
523 {
524 s32 iolen;
525
526 iolen = brcmf_c_mkiovar(iovar, param, paramlen, bufptr, buflen);
527 BUG_ON(!iolen);
528
529 return brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, bufptr, buflen);
530 }
531
532 static s32
533 brcmf_run_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan,
534 struct brcmf_ssid *ssid, u16 action)
535 {
536 s32 params_size = BRCMF_SCAN_PARAMS_FIXED_SIZE +
537 offsetof(struct brcmf_iscan_params_le, params_le);
538 struct brcmf_iscan_params_le *params;
539 s32 err = 0;
540
541 if (ssid && ssid->SSID_len)
542 params_size += sizeof(struct brcmf_ssid);
543 params = kzalloc(params_size, GFP_KERNEL);
544 if (!params)
545 return -ENOMEM;
546 BUG_ON(params_size >= BRCMF_DCMD_SMLEN);
547
548 wl_iscan_prep(&params->params_le, ssid);
549
550 params->version = cpu_to_le32(BRCMF_ISCAN_REQ_VERSION);
551 params->action = cpu_to_le16(action);
552 params->scan_duration = cpu_to_le16(0);
553
554 err = brcmf_dev_iovar_setbuf(iscan->ndev, "iscan", params, params_size,
555 iscan->dcmd_buf, BRCMF_DCMD_SMLEN);
556 if (err) {
557 if (err == -EBUSY)
558 WL_INFO("system busy : iscan canceled\n");
559 else
560 WL_ERR("error (%d)\n", err);
561 }
562
563 kfree(params);
564 return err;
565 }
566
567 static s32 brcmf_do_iscan(struct brcmf_cfg80211_priv *cfg_priv)
568 {
569 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv);
570 struct net_device *ndev = cfg_to_ndev(cfg_priv);
571 struct brcmf_ssid ssid;
572 __le32 passive_scan;
573 s32 err = 0;
574
575 /* Broadcast scan by default */
576 memset(&ssid, 0, sizeof(ssid));
577
578 iscan->state = WL_ISCAN_STATE_SCANING;
579
580 passive_scan = cfg_priv->active_scan ? 0 : cpu_to_le32(1);
581 err = brcmf_exec_dcmd(cfg_to_ndev(cfg_priv), BRCMF_C_SET_PASSIVE_SCAN,
582 &passive_scan, sizeof(passive_scan));
583 if (err) {
584 WL_ERR("error (%d)\n", err);
585 return err;
586 }
587 brcmf_set_mpc(ndev, 0);
588 cfg_priv->iscan_kickstart = true;
589 err = brcmf_run_iscan(iscan, &ssid, BRCMF_SCAN_ACTION_START);
590 if (err) {
591 brcmf_set_mpc(ndev, 1);
592 cfg_priv->iscan_kickstart = false;
593 return err;
594 }
595 mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000);
596 iscan->timer_on = 1;
597 return err;
598 }
599
600 static s32
601 __brcmf_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
602 struct cfg80211_scan_request *request,
603 struct cfg80211_ssid *this_ssid)
604 {
605 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
606 struct cfg80211_ssid *ssids;
607 struct brcmf_cfg80211_scan_req *sr = cfg_priv->scan_req_int;
608 __le32 passive_scan;
609 bool iscan_req;
610 bool spec_scan;
611 s32 err = 0;
612 u32 SSID_len;
613
614 if (test_bit(WL_STATUS_SCANNING, &cfg_priv->status)) {
615 WL_ERR("Scanning already : status (%lu)\n", cfg_priv->status);
616 return -EAGAIN;
617 }
618 if (test_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status)) {
619 WL_ERR("Scanning being aborted : status (%lu)\n",
620 cfg_priv->status);
621 return -EAGAIN;
622 }
623 if (test_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) {
624 WL_ERR("Connecting : status (%lu)\n",
625 cfg_priv->status);
626 return -EAGAIN;
627 }
628
629 iscan_req = false;
630 spec_scan = false;
631 if (request) {
632 /* scan bss */
633 ssids = request->ssids;
634 if (cfg_priv->iscan_on && (!ssids || !ssids->ssid_len))
635 iscan_req = true;
636 } else {
637 /* scan in ibss */
638 /* we don't do iscan in ibss */
639 ssids = this_ssid;
640 }
641
642 cfg_priv->scan_request = request;
643 set_bit(WL_STATUS_SCANNING, &cfg_priv->status);
644 if (iscan_req) {
645 err = brcmf_do_iscan(cfg_priv);
646 if (!err)
647 return err;
648 else
649 goto scan_out;
650 } else {
651 WL_SCAN("ssid \"%s\", ssid_len (%d)\n",
652 ssids->ssid, ssids->ssid_len);
653 memset(&sr->ssid_le, 0, sizeof(sr->ssid_le));
654 SSID_len = min_t(u8, sizeof(sr->ssid_le.SSID), ssids->ssid_len);
655 sr->ssid_le.SSID_len = cpu_to_le32(0);
656 if (SSID_len) {
657 memcpy(sr->ssid_le.SSID, ssids->ssid, SSID_len);
658 sr->ssid_le.SSID_len = cpu_to_le32(SSID_len);
659 spec_scan = true;
660 } else {
661 WL_SCAN("Broadcast scan\n");
662 }
663
664 passive_scan = cfg_priv->active_scan ? 0 : cpu_to_le32(1);
665 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_PASSIVE_SCAN,
666 &passive_scan, sizeof(passive_scan));
667 if (err) {
668 WL_ERR("WLC_SET_PASSIVE_SCAN error (%d)\n", err);
669 goto scan_out;
670 }
671 brcmf_set_mpc(ndev, 0);
672 err = brcmf_exec_dcmd(ndev, BRCMF_C_SCAN, &sr->ssid_le,
673 sizeof(sr->ssid_le));
674 if (err) {
675 if (err == -EBUSY)
676 WL_INFO("system busy : scan for \"%s\" "
677 "canceled\n", sr->ssid_le.SSID);
678 else
679 WL_ERR("WLC_SCAN error (%d)\n", err);
680
681 brcmf_set_mpc(ndev, 1);
682 goto scan_out;
683 }
684 }
685
686 return 0;
687
688 scan_out:
689 clear_bit(WL_STATUS_SCANNING, &cfg_priv->status);
690 cfg_priv->scan_request = NULL;
691 return err;
692 }
693
694 static s32
695 brcmf_cfg80211_scan(struct wiphy *wiphy,
696 struct cfg80211_scan_request *request)
697 {
698 struct net_device *ndev = request->wdev->netdev;
699 s32 err = 0;
700
701 WL_TRACE("Enter\n");
702
703 if (!check_sys_up(wiphy))
704 return -EIO;
705
706 err = __brcmf_cfg80211_scan(wiphy, ndev, request, NULL);
707 if (err)
708 WL_ERR("scan error (%d)\n", err);
709
710 WL_TRACE("Exit\n");
711 return err;
712 }
713
714 static s32 brcmf_set_rts(struct net_device *ndev, u32 rts_threshold)
715 {
716 s32 err = 0;
717
718 err = brcmf_dev_intvar_set(ndev, "rtsthresh", rts_threshold);
719 if (err)
720 WL_ERR("Error (%d)\n", err);
721
722 return err;
723 }
724
725 static s32 brcmf_set_frag(struct net_device *ndev, u32 frag_threshold)
726 {
727 s32 err = 0;
728
729 err = brcmf_dev_intvar_set(ndev, "fragthresh", frag_threshold);
730 if (err)
731 WL_ERR("Error (%d)\n", err);
732
733 return err;
734 }
735
736 static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
737 {
738 s32 err = 0;
739 u32 cmd = (l ? BRCM_SET_LRL : BRCM_SET_SRL);
740
741 err = brcmf_exec_dcmd_u32(ndev, cmd, &retry);
742 if (err) {
743 WL_ERR("cmd (%d) , error (%d)\n", cmd, err);
744 return err;
745 }
746 return err;
747 }
748
749 static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
750 {
751 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
752 struct net_device *ndev = cfg_to_ndev(cfg_priv);
753 s32 err = 0;
754
755 WL_TRACE("Enter\n");
756 if (!check_sys_up(wiphy))
757 return -EIO;
758
759 if (changed & WIPHY_PARAM_RTS_THRESHOLD &&
760 (cfg_priv->conf->rts_threshold != wiphy->rts_threshold)) {
761 cfg_priv->conf->rts_threshold = wiphy->rts_threshold;
762 err = brcmf_set_rts(ndev, cfg_priv->conf->rts_threshold);
763 if (!err)
764 goto done;
765 }
766 if (changed & WIPHY_PARAM_FRAG_THRESHOLD &&
767 (cfg_priv->conf->frag_threshold != wiphy->frag_threshold)) {
768 cfg_priv->conf->frag_threshold = wiphy->frag_threshold;
769 err = brcmf_set_frag(ndev, cfg_priv->conf->frag_threshold);
770 if (!err)
771 goto done;
772 }
773 if (changed & WIPHY_PARAM_RETRY_LONG
774 && (cfg_priv->conf->retry_long != wiphy->retry_long)) {
775 cfg_priv->conf->retry_long = wiphy->retry_long;
776 err = brcmf_set_retry(ndev, cfg_priv->conf->retry_long, true);
777 if (!err)
778 goto done;
779 }
780 if (changed & WIPHY_PARAM_RETRY_SHORT
781 && (cfg_priv->conf->retry_short != wiphy->retry_short)) {
782 cfg_priv->conf->retry_short = wiphy->retry_short;
783 err = brcmf_set_retry(ndev, cfg_priv->conf->retry_short, false);
784 if (!err)
785 goto done;
786 }
787
788 done:
789 WL_TRACE("Exit\n");
790 return err;
791 }
792
793 static void *brcmf_read_prof(struct brcmf_cfg80211_priv *cfg_priv, s32 item)
794 {
795 switch (item) {
796 case WL_PROF_SEC:
797 return &cfg_priv->profile->sec;
798 case WL_PROF_BSSID:
799 return &cfg_priv->profile->bssid;
800 case WL_PROF_SSID:
801 return &cfg_priv->profile->ssid;
802 }
803 WL_ERR("invalid item (%d)\n", item);
804 return NULL;
805 }
806
807 static s32
808 brcmf_update_prof(struct brcmf_cfg80211_priv *cfg_priv,
809 const struct brcmf_event_msg *e, void *data, s32 item)
810 {
811 s32 err = 0;
812 struct brcmf_ssid *ssid;
813
814 switch (item) {
815 case WL_PROF_SSID:
816 ssid = (struct brcmf_ssid *) data;
817 memset(cfg_priv->profile->ssid.SSID, 0,
818 sizeof(cfg_priv->profile->ssid.SSID));
819 memcpy(cfg_priv->profile->ssid.SSID,
820 ssid->SSID, ssid->SSID_len);
821 cfg_priv->profile->ssid.SSID_len = ssid->SSID_len;
822 break;
823 case WL_PROF_BSSID:
824 if (data)
825 memcpy(cfg_priv->profile->bssid, data, ETH_ALEN);
826 else
827 memset(cfg_priv->profile->bssid, 0, ETH_ALEN);
828 break;
829 case WL_PROF_SEC:
830 memcpy(&cfg_priv->profile->sec, data,
831 sizeof(cfg_priv->profile->sec));
832 break;
833 case WL_PROF_BEACONINT:
834 cfg_priv->profile->beacon_interval = *(u16 *)data;
835 break;
836 case WL_PROF_DTIMPERIOD:
837 cfg_priv->profile->dtim_period = *(u8 *)data;
838 break;
839 default:
840 WL_ERR("unsupported item (%d)\n", item);
841 err = -EOPNOTSUPP;
842 break;
843 }
844
845 return err;
846 }
847
848 static void brcmf_init_prof(struct brcmf_cfg80211_profile *prof)
849 {
850 memset(prof, 0, sizeof(*prof));
851 }
852
853 static void brcmf_ch_to_chanspec(int ch, struct brcmf_join_params *join_params,
854 size_t *join_params_size)
855 {
856 u16 chanspec = 0;
857
858 if (ch != 0) {
859 if (ch <= CH_MAX_2G_CHANNEL)
860 chanspec |= WL_CHANSPEC_BAND_2G;
861 else
862 chanspec |= WL_CHANSPEC_BAND_5G;
863
864 chanspec |= WL_CHANSPEC_BW_20;
865 chanspec |= WL_CHANSPEC_CTL_SB_NONE;
866
867 *join_params_size += BRCMF_ASSOC_PARAMS_FIXED_SIZE +
868 sizeof(u16);
869
870 chanspec |= (ch & WL_CHANSPEC_CHAN_MASK);
871 join_params->params_le.chanspec_list[0] = cpu_to_le16(chanspec);
872 join_params->params_le.chanspec_num = cpu_to_le32(1);
873
874 WL_CONN("join_params->params.chanspec_list[0]= %#X,"
875 "channel %d, chanspec %#X\n",
876 chanspec, ch, chanspec);
877 }
878 }
879
880 static void brcmf_link_down(struct brcmf_cfg80211_priv *cfg_priv)
881 {
882 struct net_device *ndev = NULL;
883 s32 err = 0;
884
885 WL_TRACE("Enter\n");
886
887 if (cfg_priv->link_up) {
888 ndev = cfg_to_ndev(cfg_priv);
889 WL_INFO("Call WLC_DISASSOC to stop excess roaming\n ");
890 err = brcmf_exec_dcmd(ndev, BRCMF_C_DISASSOC, NULL, 0);
891 if (err)
892 WL_ERR("WLC_DISASSOC failed (%d)\n", err);
893 cfg_priv->link_up = false;
894 }
895 WL_TRACE("Exit\n");
896 }
897
898 static s32
899 brcmf_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *ndev,
900 struct cfg80211_ibss_params *params)
901 {
902 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
903 struct brcmf_join_params join_params;
904 size_t join_params_size = 0;
905 s32 err = 0;
906 s32 wsec = 0;
907 s32 bcnprd;
908 struct brcmf_ssid ssid;
909
910 WL_TRACE("Enter\n");
911 if (!check_sys_up(wiphy))
912 return -EIO;
913
914 if (params->ssid)
915 WL_CONN("SSID: %s\n", params->ssid);
916 else {
917 WL_CONN("SSID: NULL, Not supported\n");
918 return -EOPNOTSUPP;
919 }
920
921 set_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
922
923 if (params->bssid)
924 WL_CONN("BSSID: %pM\n", params->bssid);
925 else
926 WL_CONN("No BSSID specified\n");
927
928 if (params->channel)
929 WL_CONN("channel: %d\n", params->channel->center_freq);
930 else
931 WL_CONN("no channel specified\n");
932
933 if (params->channel_fixed)
934 WL_CONN("fixed channel required\n");
935 else
936 WL_CONN("no fixed channel required\n");
937
938 if (params->ie && params->ie_len)
939 WL_CONN("ie len: %d\n", params->ie_len);
940 else
941 WL_CONN("no ie specified\n");
942
943 if (params->beacon_interval)
944 WL_CONN("beacon interval: %d\n", params->beacon_interval);
945 else
946 WL_CONN("no beacon interval specified\n");
947
948 if (params->basic_rates)
949 WL_CONN("basic rates: %08X\n", params->basic_rates);
950 else
951 WL_CONN("no basic rates specified\n");
952
953 if (params->privacy)
954 WL_CONN("privacy required\n");
955 else
956 WL_CONN("no privacy required\n");
957
958 /* Configure Privacy for starter */
959 if (params->privacy)
960 wsec |= WEP_ENABLED;
961
962 err = brcmf_dev_intvar_set(ndev, "wsec", wsec);
963 if (err) {
964 WL_ERR("wsec failed (%d)\n", err);
965 goto done;
966 }
967
968 /* Configure Beacon Interval for starter */
969 if (params->beacon_interval)
970 bcnprd = params->beacon_interval;
971 else
972 bcnprd = 100;
973
974 err = brcmf_exec_dcmd_u32(ndev, BRCM_SET_BCNPRD, &bcnprd);
975 if (err) {
976 WL_ERR("WLC_SET_BCNPRD failed (%d)\n", err);
977 goto done;
978 }
979
980 /* Configure required join parameter */
981 memset(&join_params, 0, sizeof(struct brcmf_join_params));
982
983 /* SSID */
984 ssid.SSID_len = min_t(u32, params->ssid_len, 32);
985 memcpy(ssid.SSID, params->ssid, ssid.SSID_len);
986 memcpy(join_params.ssid_le.SSID, params->ssid, ssid.SSID_len);
987 join_params.ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len);
988 join_params_size = sizeof(join_params.ssid_le);
989 brcmf_update_prof(cfg_priv, NULL, &ssid, WL_PROF_SSID);
990
991 /* BSSID */
992 if (params->bssid) {
993 memcpy(join_params.params_le.bssid, params->bssid, ETH_ALEN);
994 join_params_size = sizeof(join_params.ssid_le) +
995 BRCMF_ASSOC_PARAMS_FIXED_SIZE;
996 } else {
997 memcpy(join_params.params_le.bssid, ether_bcast, ETH_ALEN);
998 }
999
1000 brcmf_update_prof(cfg_priv, NULL,
1001 &join_params.params_le.bssid, WL_PROF_BSSID);
1002
1003 /* Channel */
1004 if (params->channel) {
1005 u32 target_channel;
1006
1007 cfg_priv->channel =
1008 ieee80211_frequency_to_channel(
1009 params->channel->center_freq);
1010 if (params->channel_fixed) {
1011 /* adding chanspec */
1012 brcmf_ch_to_chanspec(cfg_priv->channel,
1013 &join_params, &join_params_size);
1014 }
1015
1016 /* set channel for starter */
1017 target_channel = cfg_priv->channel;
1018 err = brcmf_exec_dcmd_u32(ndev, BRCM_SET_CHANNEL,
1019 &target_channel);
1020 if (err) {
1021 WL_ERR("WLC_SET_CHANNEL failed (%d)\n", err);
1022 goto done;
1023 }
1024 } else
1025 cfg_priv->channel = 0;
1026
1027 cfg_priv->ibss_starter = false;
1028
1029
1030 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SSID,
1031 &join_params, join_params_size);
1032 if (err) {
1033 WL_ERR("WLC_SET_SSID failed (%d)\n", err);
1034 goto done;
1035 }
1036
1037 done:
1038 if (err)
1039 clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
1040 WL_TRACE("Exit\n");
1041 return err;
1042 }
1043
1044 static s32
1045 brcmf_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *ndev)
1046 {
1047 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
1048 s32 err = 0;
1049
1050 WL_TRACE("Enter\n");
1051 if (!check_sys_up(wiphy))
1052 return -EIO;
1053
1054 brcmf_link_down(cfg_priv);
1055
1056 WL_TRACE("Exit\n");
1057
1058 return err;
1059 }
1060
1061 static s32 brcmf_set_wpa_version(struct net_device *ndev,
1062 struct cfg80211_connect_params *sme)
1063 {
1064 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
1065 struct brcmf_cfg80211_security *sec;
1066 s32 val = 0;
1067 s32 err = 0;
1068
1069 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1)
1070 val = WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED;
1071 else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)
1072 val = WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED;
1073 else
1074 val = WPA_AUTH_DISABLED;
1075 WL_CONN("setting wpa_auth to 0x%0x\n", val);
1076 err = brcmf_dev_intvar_set(ndev, "wpa_auth", val);
1077 if (err) {
1078 WL_ERR("set wpa_auth failed (%d)\n", err);
1079 return err;
1080 }
1081 sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC);
1082 sec->wpa_versions = sme->crypto.wpa_versions;
1083 return err;
1084 }
1085
1086 static s32 brcmf_set_auth_type(struct net_device *ndev,
1087 struct cfg80211_connect_params *sme)
1088 {
1089 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
1090 struct brcmf_cfg80211_security *sec;
1091 s32 val = 0;
1092 s32 err = 0;
1093
1094 switch (sme->auth_type) {
1095 case NL80211_AUTHTYPE_OPEN_SYSTEM:
1096 val = 0;
1097 WL_CONN("open system\n");
1098 break;
1099 case NL80211_AUTHTYPE_SHARED_KEY:
1100 val = 1;
1101 WL_CONN("shared key\n");
1102 break;
1103 case NL80211_AUTHTYPE_AUTOMATIC:
1104 val = 2;
1105 WL_CONN("automatic\n");
1106 break;
1107 case NL80211_AUTHTYPE_NETWORK_EAP:
1108 WL_CONN("network eap\n");
1109 default:
1110 val = 2;
1111 WL_ERR("invalid auth type (%d)\n", sme->auth_type);
1112 break;
1113 }
1114
1115 err = brcmf_dev_intvar_set(ndev, "auth", val);
1116 if (err) {
1117 WL_ERR("set auth failed (%d)\n", err);
1118 return err;
1119 }
1120 sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC);
1121 sec->auth_type = sme->auth_type;
1122 return err;
1123 }
1124
1125 static s32
1126 brcmf_set_set_cipher(struct net_device *ndev,
1127 struct cfg80211_connect_params *sme)
1128 {
1129 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
1130 struct brcmf_cfg80211_security *sec;
1131 s32 pval = 0;
1132 s32 gval = 0;
1133 s32 err = 0;
1134
1135 if (sme->crypto.n_ciphers_pairwise) {
1136 switch (sme->crypto.ciphers_pairwise[0]) {
1137 case WLAN_CIPHER_SUITE_WEP40:
1138 case WLAN_CIPHER_SUITE_WEP104:
1139 pval = WEP_ENABLED;
1140 break;
1141 case WLAN_CIPHER_SUITE_TKIP:
1142 pval = TKIP_ENABLED;
1143 break;
1144 case WLAN_CIPHER_SUITE_CCMP:
1145 pval = AES_ENABLED;
1146 break;
1147 case WLAN_CIPHER_SUITE_AES_CMAC:
1148 pval = AES_ENABLED;
1149 break;
1150 default:
1151 WL_ERR("invalid cipher pairwise (%d)\n",
1152 sme->crypto.ciphers_pairwise[0]);
1153 return -EINVAL;
1154 }
1155 }
1156 if (sme->crypto.cipher_group) {
1157 switch (sme->crypto.cipher_group) {
1158 case WLAN_CIPHER_SUITE_WEP40:
1159 case WLAN_CIPHER_SUITE_WEP104:
1160 gval = WEP_ENABLED;
1161 break;
1162 case WLAN_CIPHER_SUITE_TKIP:
1163 gval = TKIP_ENABLED;
1164 break;
1165 case WLAN_CIPHER_SUITE_CCMP:
1166 gval = AES_ENABLED;
1167 break;
1168 case WLAN_CIPHER_SUITE_AES_CMAC:
1169 gval = AES_ENABLED;
1170 break;
1171 default:
1172 WL_ERR("invalid cipher group (%d)\n",
1173 sme->crypto.cipher_group);
1174 return -EINVAL;
1175 }
1176 }
1177
1178 WL_CONN("pval (%d) gval (%d)\n", pval, gval);
1179 err = brcmf_dev_intvar_set(ndev, "wsec", pval | gval);
1180 if (err) {
1181 WL_ERR("error (%d)\n", err);
1182 return err;
1183 }
1184
1185 sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC);
1186 sec->cipher_pairwise = sme->crypto.ciphers_pairwise[0];
1187 sec->cipher_group = sme->crypto.cipher_group;
1188
1189 return err;
1190 }
1191
1192 static s32
1193 brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme)
1194 {
1195 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
1196 struct brcmf_cfg80211_security *sec;
1197 s32 val = 0;
1198 s32 err = 0;
1199
1200 if (sme->crypto.n_akm_suites) {
1201 err = brcmf_dev_intvar_get(ndev, "wpa_auth", &val);
1202 if (err) {
1203 WL_ERR("could not get wpa_auth (%d)\n", err);
1204 return err;
1205 }
1206 if (val & (WPA_AUTH_PSK | WPA_AUTH_UNSPECIFIED)) {
1207 switch (sme->crypto.akm_suites[0]) {
1208 case WLAN_AKM_SUITE_8021X:
1209 val = WPA_AUTH_UNSPECIFIED;
1210 break;
1211 case WLAN_AKM_SUITE_PSK:
1212 val = WPA_AUTH_PSK;
1213 break;
1214 default:
1215 WL_ERR("invalid cipher group (%d)\n",
1216 sme->crypto.cipher_group);
1217 return -EINVAL;
1218 }
1219 } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) {
1220 switch (sme->crypto.akm_suites[0]) {
1221 case WLAN_AKM_SUITE_8021X:
1222 val = WPA2_AUTH_UNSPECIFIED;
1223 break;
1224 case WLAN_AKM_SUITE_PSK:
1225 val = WPA2_AUTH_PSK;
1226 break;
1227 default:
1228 WL_ERR("invalid cipher group (%d)\n",
1229 sme->crypto.cipher_group);
1230 return -EINVAL;
1231 }
1232 }
1233
1234 WL_CONN("setting wpa_auth to %d\n", val);
1235 err = brcmf_dev_intvar_set(ndev, "wpa_auth", val);
1236 if (err) {
1237 WL_ERR("could not set wpa_auth (%d)\n", err);
1238 return err;
1239 }
1240 }
1241 sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC);
1242 sec->wpa_auth = sme->crypto.akm_suites[0];
1243
1244 return err;
1245 }
1246
1247 static s32
1248 brcmf_set_wep_sharedkey(struct net_device *ndev,
1249 struct cfg80211_connect_params *sme)
1250 {
1251 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
1252 struct brcmf_cfg80211_security *sec;
1253 struct brcmf_wsec_key key;
1254 s32 val;
1255 s32 err = 0;
1256
1257 WL_CONN("key len (%d)\n", sme->key_len);
1258
1259 if (sme->key_len == 0)
1260 return 0;
1261
1262 sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC);
1263 WL_CONN("wpa_versions 0x%x cipher_pairwise 0x%x\n",
1264 sec->wpa_versions, sec->cipher_pairwise);
1265
1266 if (sec->wpa_versions & (NL80211_WPA_VERSION_1 | NL80211_WPA_VERSION_2))
1267 return 0;
1268
1269 if (sec->cipher_pairwise &
1270 (WLAN_CIPHER_SUITE_WEP40 | WLAN_CIPHER_SUITE_WEP104)) {
1271 memset(&key, 0, sizeof(key));
1272 key.len = (u32) sme->key_len;
1273 key.index = (u32) sme->key_idx;
1274 if (key.len > sizeof(key.data)) {
1275 WL_ERR("Too long key length (%u)\n", key.len);
1276 return -EINVAL;
1277 }
1278 memcpy(key.data, sme->key, key.len);
1279 key.flags = BRCMF_PRIMARY_KEY;
1280 switch (sec->cipher_pairwise) {
1281 case WLAN_CIPHER_SUITE_WEP40:
1282 key.algo = CRYPTO_ALGO_WEP1;
1283 break;
1284 case WLAN_CIPHER_SUITE_WEP104:
1285 key.algo = CRYPTO_ALGO_WEP128;
1286 break;
1287 default:
1288 WL_ERR("Invalid algorithm (%d)\n",
1289 sme->crypto.ciphers_pairwise[0]);
1290 return -EINVAL;
1291 }
1292 /* Set the new key/index */
1293 WL_CONN("key length (%d) key index (%d) algo (%d)\n",
1294 key.len, key.index, key.algo);
1295 WL_CONN("key \"%s\"\n", key.data);
1296 err = send_key_to_dongle(ndev, &key);
1297 if (err)
1298 return err;
1299
1300 if (sec->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM) {
1301 WL_CONN("set auth_type to shared key\n");
1302 val = 1; /* shared key */
1303 err = brcmf_dev_intvar_set(ndev, "auth", val);
1304 if (err) {
1305 WL_ERR("set auth failed (%d)\n", err);
1306 return err;
1307 }
1308 }
1309 }
1310 return err;
1311 }
1312
1313 static s32
1314 brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
1315 struct cfg80211_connect_params *sme)
1316 {
1317 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
1318 struct ieee80211_channel *chan = sme->channel;
1319 struct brcmf_join_params join_params;
1320 size_t join_params_size;
1321 struct brcmf_ssid ssid;
1322
1323 s32 err = 0;
1324
1325 WL_TRACE("Enter\n");
1326 if (!check_sys_up(wiphy))
1327 return -EIO;
1328
1329 if (!sme->ssid) {
1330 WL_ERR("Invalid ssid\n");
1331 return -EOPNOTSUPP;
1332 }
1333
1334 set_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
1335
1336 if (chan) {
1337 cfg_priv->channel =
1338 ieee80211_frequency_to_channel(chan->center_freq);
1339 WL_CONN("channel (%d), center_req (%d)\n",
1340 cfg_priv->channel, chan->center_freq);
1341 } else
1342 cfg_priv->channel = 0;
1343
1344 WL_INFO("ie (%p), ie_len (%zd)\n", sme->ie, sme->ie_len);
1345
1346 err = brcmf_set_wpa_version(ndev, sme);
1347 if (err) {
1348 WL_ERR("wl_set_wpa_version failed (%d)\n", err);
1349 goto done;
1350 }
1351
1352 err = brcmf_set_auth_type(ndev, sme);
1353 if (err) {
1354 WL_ERR("wl_set_auth_type failed (%d)\n", err);
1355 goto done;
1356 }
1357
1358 err = brcmf_set_set_cipher(ndev, sme);
1359 if (err) {
1360 WL_ERR("wl_set_set_cipher failed (%d)\n", err);
1361 goto done;
1362 }
1363
1364 err = brcmf_set_key_mgmt(ndev, sme);
1365 if (err) {
1366 WL_ERR("wl_set_key_mgmt failed (%d)\n", err);
1367 goto done;
1368 }
1369
1370 err = brcmf_set_wep_sharedkey(ndev, sme);
1371 if (err) {
1372 WL_ERR("brcmf_set_wep_sharedkey failed (%d)\n", err);
1373 goto done;
1374 }
1375
1376 memset(&join_params, 0, sizeof(join_params));
1377 join_params_size = sizeof(join_params.ssid_le);
1378
1379 ssid.SSID_len = min_t(u32, sizeof(ssid.SSID), (u32)sme->ssid_len);
1380 memcpy(&join_params.ssid_le.SSID, sme->ssid, ssid.SSID_len);
1381 memcpy(&ssid.SSID, sme->ssid, ssid.SSID_len);
1382 join_params.ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len);
1383 brcmf_update_prof(cfg_priv, NULL, &ssid, WL_PROF_SSID);
1384
1385 memcpy(join_params.params_le.bssid, ether_bcast, ETH_ALEN);
1386
1387 if (ssid.SSID_len < IEEE80211_MAX_SSID_LEN)
1388 WL_CONN("ssid \"%s\", len (%d)\n",
1389 ssid.SSID, ssid.SSID_len);
1390
1391 brcmf_ch_to_chanspec(cfg_priv->channel,
1392 &join_params, &join_params_size);
1393 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SSID,
1394 &join_params, join_params_size);
1395 if (err)
1396 WL_ERR("WLC_SET_SSID failed (%d)\n", err);
1397
1398 done:
1399 if (err)
1400 clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
1401 WL_TRACE("Exit\n");
1402 return err;
1403 }
1404
1405 static s32
1406 brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
1407 u16 reason_code)
1408 {
1409 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
1410 struct brcmf_scb_val_le scbval;
1411 s32 err = 0;
1412
1413 WL_TRACE("Enter. Reason code = %d\n", reason_code);
1414 if (!check_sys_up(wiphy))
1415 return -EIO;
1416
1417 clear_bit(WL_STATUS_CONNECTED, &cfg_priv->status);
1418
1419 memcpy(&scbval.ea, brcmf_read_prof(cfg_priv, WL_PROF_BSSID), ETH_ALEN);
1420 scbval.val = cpu_to_le32(reason_code);
1421 err = brcmf_exec_dcmd(ndev, BRCMF_C_DISASSOC, &scbval,
1422 sizeof(struct brcmf_scb_val_le));
1423 if (err)
1424 WL_ERR("error (%d)\n", err);
1425
1426 cfg_priv->link_up = false;
1427
1428 WL_TRACE("Exit\n");
1429 return err;
1430 }
1431
1432 static s32
1433 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy,
1434 enum nl80211_tx_power_setting type, s32 mbm)
1435 {
1436
1437 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
1438 struct net_device *ndev = cfg_to_ndev(cfg_priv);
1439 u16 txpwrmw;
1440 s32 err = 0;
1441 s32 disable = 0;
1442 s32 dbm = MBM_TO_DBM(mbm);
1443
1444 WL_TRACE("Enter\n");
1445 if (!check_sys_up(wiphy))
1446 return -EIO;
1447
1448 switch (type) {
1449 case NL80211_TX_POWER_AUTOMATIC:
1450 break;
1451 case NL80211_TX_POWER_LIMITED:
1452 case NL80211_TX_POWER_FIXED:
1453 if (dbm < 0) {
1454 WL_ERR("TX_POWER_FIXED - dbm is negative\n");
1455 err = -EINVAL;
1456 goto done;
1457 }
1458 break;
1459 }
1460 /* Make sure radio is off or on as far as software is concerned */
1461 disable = WL_RADIO_SW_DISABLE << 16;
1462 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_RADIO, &disable);
1463 if (err)
1464 WL_ERR("WLC_SET_RADIO error (%d)\n", err);
1465
1466 if (dbm > 0xffff)
1467 txpwrmw = 0xffff;
1468 else
1469 txpwrmw = (u16) dbm;
1470 err = brcmf_dev_intvar_set(ndev, "qtxpower",
1471 (s32) (brcmf_mw_to_qdbm(txpwrmw)));
1472 if (err)
1473 WL_ERR("qtxpower error (%d)\n", err);
1474 cfg_priv->conf->tx_power = dbm;
1475
1476 done:
1477 WL_TRACE("Exit\n");
1478 return err;
1479 }
1480
1481 static s32 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, s32 *dbm)
1482 {
1483 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
1484 struct net_device *ndev = cfg_to_ndev(cfg_priv);
1485 s32 txpwrdbm;
1486 u8 result;
1487 s32 err = 0;
1488
1489 WL_TRACE("Enter\n");
1490 if (!check_sys_up(wiphy))
1491 return -EIO;
1492
1493 err = brcmf_dev_intvar_get(ndev, "qtxpower", &txpwrdbm);
1494 if (err) {
1495 WL_ERR("error (%d)\n", err);
1496 goto done;
1497 }
1498
1499 result = (u8) (txpwrdbm & ~WL_TXPWR_OVERRIDE);
1500 *dbm = (s32) brcmf_qdbm_to_mw(result);
1501
1502 done:
1503 WL_TRACE("Exit\n");
1504 return err;
1505 }
1506
1507 static s32
1508 brcmf_cfg80211_config_default_key(struct wiphy *wiphy, struct net_device *ndev,
1509 u8 key_idx, bool unicast, bool multicast)
1510 {
1511 u32 index;
1512 u32 wsec;
1513 s32 err = 0;
1514
1515 WL_TRACE("Enter\n");
1516 WL_CONN("key index (%d)\n", key_idx);
1517 if (!check_sys_up(wiphy))
1518 return -EIO;
1519
1520 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_WSEC, &wsec);
1521 if (err) {
1522 WL_ERR("WLC_GET_WSEC error (%d)\n", err);
1523 goto done;
1524 }
1525
1526 if (wsec & WEP_ENABLED) {
1527 /* Just select a new current key */
1528 index = key_idx;
1529 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_KEY_PRIMARY,
1530 &index);
1531 if (err)
1532 WL_ERR("error (%d)\n", err);
1533 }
1534 done:
1535 WL_TRACE("Exit\n");
1536 return err;
1537 }
1538
1539 static s32
1540 brcmf_add_keyext(struct wiphy *wiphy, struct net_device *ndev,
1541 u8 key_idx, const u8 *mac_addr, struct key_params *params)
1542 {
1543 struct brcmf_wsec_key key;
1544 struct brcmf_wsec_key_le key_le;
1545 s32 err = 0;
1546
1547 memset(&key, 0, sizeof(key));
1548 key.index = (u32) key_idx;
1549 /* Instead of bcast for ea address for default wep keys,
1550 driver needs it to be Null */
1551 if (!is_multicast_ether_addr(mac_addr))
1552 memcpy((char *)&key.ea, (void *)mac_addr, ETH_ALEN);
1553 key.len = (u32) params->key_len;
1554 /* check for key index change */
1555 if (key.len == 0) {
1556 /* key delete */
1557 err = send_key_to_dongle(ndev, &key);
1558 if (err)
1559 return err;
1560 } else {
1561 if (key.len > sizeof(key.data)) {
1562 WL_ERR("Invalid key length (%d)\n", key.len);
1563 return -EINVAL;
1564 }
1565
1566 WL_CONN("Setting the key index %d\n", key.index);
1567 memcpy(key.data, params->key, key.len);
1568
1569 if (params->cipher == WLAN_CIPHER_SUITE_TKIP) {
1570 u8 keybuf[8];
1571 memcpy(keybuf, &key.data[24], sizeof(keybuf));
1572 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1573 memcpy(&key.data[16], keybuf, sizeof(keybuf));
1574 }
1575
1576 /* if IW_ENCODE_EXT_RX_SEQ_VALID set */
1577 if (params->seq && params->seq_len == 6) {
1578 /* rx iv */
1579 u8 *ivptr;
1580 ivptr = (u8 *) params->seq;
1581 key.rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
1582 (ivptr[3] << 8) | ivptr[2];
1583 key.rxiv.lo = (ivptr[1] << 8) | ivptr[0];
1584 key.iv_initialized = true;
1585 }
1586
1587 switch (params->cipher) {
1588 case WLAN_CIPHER_SUITE_WEP40:
1589 key.algo = CRYPTO_ALGO_WEP1;
1590 WL_CONN("WLAN_CIPHER_SUITE_WEP40\n");
1591 break;
1592 case WLAN_CIPHER_SUITE_WEP104:
1593 key.algo = CRYPTO_ALGO_WEP128;
1594 WL_CONN("WLAN_CIPHER_SUITE_WEP104\n");
1595 break;
1596 case WLAN_CIPHER_SUITE_TKIP:
1597 key.algo = CRYPTO_ALGO_TKIP;
1598 WL_CONN("WLAN_CIPHER_SUITE_TKIP\n");
1599 break;
1600 case WLAN_CIPHER_SUITE_AES_CMAC:
1601 key.algo = CRYPTO_ALGO_AES_CCM;
1602 WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n");
1603 break;
1604 case WLAN_CIPHER_SUITE_CCMP:
1605 key.algo = CRYPTO_ALGO_AES_CCM;
1606 WL_CONN("WLAN_CIPHER_SUITE_CCMP\n");
1607 break;
1608 default:
1609 WL_ERR("Invalid cipher (0x%x)\n", params->cipher);
1610 return -EINVAL;
1611 }
1612 convert_key_from_CPU(&key, &key_le);
1613
1614 brcmf_netdev_wait_pend8021x(ndev);
1615 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_KEY, &key_le,
1616 sizeof(key_le));
1617 if (err) {
1618 WL_ERR("WLC_SET_KEY error (%d)\n", err);
1619 return err;
1620 }
1621 }
1622 return err;
1623 }
1624
1625 static s32
1626 brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
1627 u8 key_idx, bool pairwise, const u8 *mac_addr,
1628 struct key_params *params)
1629 {
1630 struct brcmf_wsec_key key;
1631 s32 val;
1632 s32 wsec;
1633 s32 err = 0;
1634 u8 keybuf[8];
1635
1636 WL_TRACE("Enter\n");
1637 WL_CONN("key index (%d)\n", key_idx);
1638 if (!check_sys_up(wiphy))
1639 return -EIO;
1640
1641 if (mac_addr) {
1642 WL_TRACE("Exit");
1643 return brcmf_add_keyext(wiphy, ndev, key_idx, mac_addr, params);
1644 }
1645 memset(&key, 0, sizeof(key));
1646
1647 key.len = (u32) params->key_len;
1648 key.index = (u32) key_idx;
1649
1650 if (key.len > sizeof(key.data)) {
1651 WL_ERR("Too long key length (%u)\n", key.len);
1652 err = -EINVAL;
1653 goto done;
1654 }
1655 memcpy(key.data, params->key, key.len);
1656
1657 key.flags = BRCMF_PRIMARY_KEY;
1658 switch (params->cipher) {
1659 case WLAN_CIPHER_SUITE_WEP40:
1660 key.algo = CRYPTO_ALGO_WEP1;
1661 WL_CONN("WLAN_CIPHER_SUITE_WEP40\n");
1662 break;
1663 case WLAN_CIPHER_SUITE_WEP104:
1664 key.algo = CRYPTO_ALGO_WEP128;
1665 WL_CONN("WLAN_CIPHER_SUITE_WEP104\n");
1666 break;
1667 case WLAN_CIPHER_SUITE_TKIP:
1668 memcpy(keybuf, &key.data[24], sizeof(keybuf));
1669 memcpy(&key.data[24], &key.data[16], sizeof(keybuf));
1670 memcpy(&key.data[16], keybuf, sizeof(keybuf));
1671 key.algo = CRYPTO_ALGO_TKIP;
1672 WL_CONN("WLAN_CIPHER_SUITE_TKIP\n");
1673 break;
1674 case WLAN_CIPHER_SUITE_AES_CMAC:
1675 key.algo = CRYPTO_ALGO_AES_CCM;
1676 WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n");
1677 break;
1678 case WLAN_CIPHER_SUITE_CCMP:
1679 key.algo = CRYPTO_ALGO_AES_CCM;
1680 WL_CONN("WLAN_CIPHER_SUITE_CCMP\n");
1681 break;
1682 default:
1683 WL_ERR("Invalid cipher (0x%x)\n", params->cipher);
1684 err = -EINVAL;
1685 goto done;
1686 }
1687
1688 err = send_key_to_dongle(ndev, &key); /* Set the new key/index */
1689 if (err)
1690 goto done;
1691
1692 val = WEP_ENABLED;
1693 err = brcmf_dev_intvar_get(ndev, "wsec", &wsec);
1694 if (err) {
1695 WL_ERR("get wsec error (%d)\n", err);
1696 goto done;
1697 }
1698 wsec &= ~(WEP_ENABLED);
1699 wsec |= val;
1700 err = brcmf_dev_intvar_set(ndev, "wsec", wsec);
1701 if (err) {
1702 WL_ERR("set wsec error (%d)\n", err);
1703 goto done;
1704 }
1705
1706 val = 1; /* assume shared key. otherwise 0 */
1707 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_AUTH, &val);
1708 if (err)
1709 WL_ERR("WLC_SET_AUTH error (%d)\n", err);
1710 done:
1711 WL_TRACE("Exit\n");
1712 return err;
1713 }
1714
1715 static s32
1716 brcmf_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
1717 u8 key_idx, bool pairwise, const u8 *mac_addr)
1718 {
1719 struct brcmf_wsec_key key;
1720 s32 err = 0;
1721 s32 val;
1722 s32 wsec;
1723
1724 WL_TRACE("Enter\n");
1725 if (!check_sys_up(wiphy))
1726 return -EIO;
1727
1728 memset(&key, 0, sizeof(key));
1729
1730 key.index = (u32) key_idx;
1731 key.flags = BRCMF_PRIMARY_KEY;
1732 key.algo = CRYPTO_ALGO_OFF;
1733
1734 WL_CONN("key index (%d)\n", key_idx);
1735
1736 /* Set the new key/index */
1737 err = send_key_to_dongle(ndev, &key);
1738 if (err) {
1739 if (err == -EINVAL) {
1740 if (key.index >= DOT11_MAX_DEFAULT_KEYS)
1741 /* we ignore this key index in this case */
1742 WL_ERR("invalid key index (%d)\n", key_idx);
1743 }
1744 /* Ignore this error, may happen during DISASSOC */
1745 err = -EAGAIN;
1746 goto done;
1747 }
1748
1749 val = 0;
1750 err = brcmf_dev_intvar_get(ndev, "wsec", &wsec);
1751 if (err) {
1752 WL_ERR("get wsec error (%d)\n", err);
1753 /* Ignore this error, may happen during DISASSOC */
1754 err = -EAGAIN;
1755 goto done;
1756 }
1757 wsec &= ~(WEP_ENABLED);
1758 wsec |= val;
1759 err = brcmf_dev_intvar_set(ndev, "wsec", wsec);
1760 if (err) {
1761 WL_ERR("set wsec error (%d)\n", err);
1762 /* Ignore this error, may happen during DISASSOC */
1763 err = -EAGAIN;
1764 goto done;
1765 }
1766
1767 val = 0; /* assume open key. otherwise 1 */
1768 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_AUTH, &val);
1769 if (err) {
1770 WL_ERR("WLC_SET_AUTH error (%d)\n", err);
1771 /* Ignore this error, may happen during DISASSOC */
1772 err = -EAGAIN;
1773 }
1774 done:
1775 WL_TRACE("Exit\n");
1776 return err;
1777 }
1778
1779 static s32
1780 brcmf_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
1781 u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie,
1782 void (*callback) (void *cookie, struct key_params * params))
1783 {
1784 struct key_params params;
1785 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
1786 struct brcmf_cfg80211_security *sec;
1787 s32 wsec;
1788 s32 err = 0;
1789
1790 WL_TRACE("Enter\n");
1791 WL_CONN("key index (%d)\n", key_idx);
1792 if (!check_sys_up(wiphy))
1793 return -EIO;
1794
1795 memset(&params, 0, sizeof(params));
1796
1797 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_WSEC, &wsec);
1798 if (err) {
1799 WL_ERR("WLC_GET_WSEC error (%d)\n", err);
1800 /* Ignore this error, may happen during DISASSOC */
1801 err = -EAGAIN;
1802 goto done;
1803 }
1804 switch (wsec) {
1805 case WEP_ENABLED:
1806 sec = brcmf_read_prof(cfg_priv, WL_PROF_SEC);
1807 if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP40) {
1808 params.cipher = WLAN_CIPHER_SUITE_WEP40;
1809 WL_CONN("WLAN_CIPHER_SUITE_WEP40\n");
1810 } else if (sec->cipher_pairwise & WLAN_CIPHER_SUITE_WEP104) {
1811 params.cipher = WLAN_CIPHER_SUITE_WEP104;
1812 WL_CONN("WLAN_CIPHER_SUITE_WEP104\n");
1813 }
1814 break;
1815 case TKIP_ENABLED:
1816 params.cipher = WLAN_CIPHER_SUITE_TKIP;
1817 WL_CONN("WLAN_CIPHER_SUITE_TKIP\n");
1818 break;
1819 case AES_ENABLED:
1820 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
1821 WL_CONN("WLAN_CIPHER_SUITE_AES_CMAC\n");
1822 break;
1823 default:
1824 WL_ERR("Invalid algo (0x%x)\n", wsec);
1825 err = -EINVAL;
1826 goto done;
1827 }
1828 callback(cookie, &params);
1829
1830 done:
1831 WL_TRACE("Exit\n");
1832 return err;
1833 }
1834
1835 static s32
1836 brcmf_cfg80211_config_default_mgmt_key(struct wiphy *wiphy,
1837 struct net_device *ndev, u8 key_idx)
1838 {
1839 WL_INFO("Not supported\n");
1840
1841 return -EOPNOTSUPP;
1842 }
1843
1844 static s32
1845 brcmf_cfg80211_get_station(struct wiphy *wiphy, struct net_device *ndev,
1846 u8 *mac, struct station_info *sinfo)
1847 {
1848 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
1849 struct brcmf_scb_val_le scb_val;
1850 int rssi;
1851 s32 rate;
1852 s32 err = 0;
1853 u8 *bssid = brcmf_read_prof(cfg_priv, WL_PROF_BSSID);
1854
1855 WL_TRACE("Enter\n");
1856 if (!check_sys_up(wiphy))
1857 return -EIO;
1858
1859 if (memcmp(mac, bssid, ETH_ALEN)) {
1860 WL_ERR("Wrong Mac address cfg_mac-%X:%X:%X:%X:%X:%X"
1861 "wl_bssid-%X:%X:%X:%X:%X:%X\n",
1862 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5],
1863 bssid[0], bssid[1], bssid[2], bssid[3],
1864 bssid[4], bssid[5]);
1865 err = -ENOENT;
1866 goto done;
1867 }
1868
1869 /* Report the current tx rate */
1870 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_GET_RATE, &rate);
1871 if (err) {
1872 WL_ERR("Could not get rate (%d)\n", err);
1873 } else {
1874 sinfo->filled |= STATION_INFO_TX_BITRATE;
1875 sinfo->txrate.legacy = rate * 5;
1876 WL_CONN("Rate %d Mbps\n", rate / 2);
1877 }
1878
1879 if (test_bit(WL_STATUS_CONNECTED, &cfg_priv->status)) {
1880 memset(&scb_val, 0, sizeof(scb_val));
1881 err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_RSSI, &scb_val,
1882 sizeof(struct brcmf_scb_val_le));
1883 if (err) {
1884 WL_ERR("Could not get rssi (%d)\n", err);
1885 } else {
1886 rssi = le32_to_cpu(scb_val.val);
1887 sinfo->filled |= STATION_INFO_SIGNAL;
1888 sinfo->signal = rssi;
1889 WL_CONN("RSSI %d dBm\n", rssi);
1890 }
1891 }
1892
1893 done:
1894 WL_TRACE("Exit\n");
1895 return err;
1896 }
1897
1898 static s32
1899 brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev,
1900 bool enabled, s32 timeout)
1901 {
1902 s32 pm;
1903 s32 err = 0;
1904 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
1905
1906 WL_TRACE("Enter\n");
1907
1908 /*
1909 * Powersave enable/disable request is coming from the
1910 * cfg80211 even before the interface is up. In that
1911 * scenario, driver will be storing the power save
1912 * preference in cfg_priv struct to apply this to
1913 * FW later while initializing the dongle
1914 */
1915 cfg_priv->pwr_save = enabled;
1916 if (!test_bit(WL_STATUS_READY, &cfg_priv->status)) {
1917
1918 WL_INFO("Device is not ready,"
1919 "storing the value in cfg_priv struct\n");
1920 goto done;
1921 }
1922
1923 pm = enabled ? PM_FAST : PM_OFF;
1924 WL_INFO("power save %s\n", (pm ? "enabled" : "disabled"));
1925
1926 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_PM, &pm);
1927 if (err) {
1928 if (err == -ENODEV)
1929 WL_ERR("net_device is not ready yet\n");
1930 else
1931 WL_ERR("error (%d)\n", err);
1932 }
1933 done:
1934 WL_TRACE("Exit\n");
1935 return err;
1936 }
1937
1938 static s32
1939 brcmf_cfg80211_set_bitrate_mask(struct wiphy *wiphy, struct net_device *ndev,
1940 const u8 *addr,
1941 const struct cfg80211_bitrate_mask *mask)
1942 {
1943 struct brcm_rateset_le rateset_le;
1944 s32 rate;
1945 s32 val;
1946 s32 err_bg;
1947 s32 err_a;
1948 u32 legacy;
1949 s32 err = 0;
1950
1951 WL_TRACE("Enter\n");
1952 if (!check_sys_up(wiphy))
1953 return -EIO;
1954
1955 /* addr param is always NULL. ignore it */
1956 /* Get current rateset */
1957 err = brcmf_exec_dcmd(ndev, BRCM_GET_CURR_RATESET, &rateset_le,
1958 sizeof(rateset_le));
1959 if (err) {
1960 WL_ERR("could not get current rateset (%d)\n", err);
1961 goto done;
1962 }
1963
1964 legacy = ffs(mask->control[IEEE80211_BAND_2GHZ].legacy & 0xFFFF);
1965 if (!legacy)
1966 legacy = ffs(mask->control[IEEE80211_BAND_5GHZ].legacy &
1967 0xFFFF);
1968
1969 val = wl_g_rates[legacy - 1].bitrate * 100000;
1970
1971 if (val < le32_to_cpu(rateset_le.count))
1972 /* Select rate by rateset index */
1973 rate = rateset_le.rates[val] & 0x7f;
1974 else
1975 /* Specified rate in bps */
1976 rate = val / 500000;
1977
1978 WL_CONN("rate %d mbps\n", rate / 2);
1979
1980 /*
1981 *
1982 * Set rate override,
1983 * Since the is a/b/g-blind, both a/bg_rate are enforced.
1984 */
1985 err_bg = brcmf_dev_intvar_set(ndev, "bg_rate", rate);
1986 err_a = brcmf_dev_intvar_set(ndev, "a_rate", rate);
1987 if (err_bg && err_a) {
1988 WL_ERR("could not set fixed rate (%d) (%d)\n", err_bg, err_a);
1989 err = err_bg | err_a;
1990 }
1991
1992 done:
1993 WL_TRACE("Exit\n");
1994 return err;
1995 }
1996
1997 static s32 brcmf_inform_single_bss(struct brcmf_cfg80211_priv *cfg_priv,
1998 struct brcmf_bss_info_le *bi)
1999 {
2000 struct wiphy *wiphy = cfg_to_wiphy(cfg_priv);
2001 struct ieee80211_channel *notify_channel;
2002 struct cfg80211_bss *bss;
2003 struct ieee80211_supported_band *band;
2004 s32 err = 0;
2005 u16 channel;
2006 u32 freq;
2007 u16 notify_capability;
2008 u16 notify_interval;
2009 u8 *notify_ie;
2010 size_t notify_ielen;
2011 s32 notify_signal;
2012
2013 if (le32_to_cpu(bi->length) > WL_BSS_INFO_MAX) {
2014 WL_ERR("Bss info is larger than buffer. Discarding\n");
2015 return 0;
2016 }
2017
2018 channel = bi->ctl_ch ? bi->ctl_ch :
2019 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
2020
2021 if (channel <= CH_MAX_2G_CHANNEL)
2022 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2023 else
2024 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2025
2026 freq = ieee80211_channel_to_frequency(channel, band->band);
2027 notify_channel = ieee80211_get_channel(wiphy, freq);
2028
2029 notify_capability = le16_to_cpu(bi->capability);
2030 notify_interval = le16_to_cpu(bi->beacon_period);
2031 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2032 notify_ielen = le32_to_cpu(bi->ie_length);
2033 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2034
2035 WL_CONN("bssid: %2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X\n",
2036 bi->BSSID[0], bi->BSSID[1], bi->BSSID[2],
2037 bi->BSSID[3], bi->BSSID[4], bi->BSSID[5]);
2038 WL_CONN("Channel: %d(%d)\n", channel, freq);
2039 WL_CONN("Capability: %X\n", notify_capability);
2040 WL_CONN("Beacon interval: %d\n", notify_interval);
2041 WL_CONN("Signal: %d\n", notify_signal);
2042
2043 bss = cfg80211_inform_bss(wiphy, notify_channel, (const u8 *)bi->BSSID,
2044 0, notify_capability, notify_interval, notify_ie,
2045 notify_ielen, notify_signal, GFP_KERNEL);
2046
2047 if (!bss)
2048 return -ENOMEM;
2049
2050 cfg80211_put_bss(bss);
2051
2052 return err;
2053 }
2054
2055 static struct brcmf_bss_info_le *
2056 next_bss_le(struct brcmf_scan_results *list, struct brcmf_bss_info_le *bss)
2057 {
2058 if (bss == NULL)
2059 return list->bss_info_le;
2060 return (struct brcmf_bss_info_le *)((unsigned long)bss +
2061 le32_to_cpu(bss->length));
2062 }
2063
2064 static s32 brcmf_inform_bss(struct brcmf_cfg80211_priv *cfg_priv)
2065 {
2066 struct brcmf_scan_results *bss_list;
2067 struct brcmf_bss_info_le *bi = NULL; /* must be initialized */
2068 s32 err = 0;
2069 int i;
2070
2071 bss_list = cfg_priv->bss_list;
2072 if (bss_list->version != BRCMF_BSS_INFO_VERSION) {
2073 WL_ERR("Version %d != WL_BSS_INFO_VERSION\n",
2074 bss_list->version);
2075 return -EOPNOTSUPP;
2076 }
2077 WL_SCAN("scanned AP count (%d)\n", bss_list->count);
2078 for (i = 0; i < bss_list->count && i < WL_AP_MAX; i++) {
2079 bi = next_bss_le(bss_list, bi);
2080 err = brcmf_inform_single_bss(cfg_priv, bi);
2081 if (err)
2082 break;
2083 }
2084 return err;
2085 }
2086
2087 static s32 wl_inform_ibss(struct brcmf_cfg80211_priv *cfg_priv,
2088 struct net_device *ndev, const u8 *bssid)
2089 {
2090 struct wiphy *wiphy = cfg_to_wiphy(cfg_priv);
2091 struct ieee80211_channel *notify_channel;
2092 struct brcmf_bss_info_le *bi = NULL;
2093 struct ieee80211_supported_band *band;
2094 struct cfg80211_bss *bss;
2095 u8 *buf = NULL;
2096 s32 err = 0;
2097 u16 channel;
2098 u32 freq;
2099 u16 notify_capability;
2100 u16 notify_interval;
2101 u8 *notify_ie;
2102 size_t notify_ielen;
2103 s32 notify_signal;
2104
2105 WL_TRACE("Enter\n");
2106
2107 buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
2108 if (buf == NULL) {
2109 err = -ENOMEM;
2110 goto CleanUp;
2111 }
2112
2113 *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX);
2114
2115 err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_BSS_INFO, buf, WL_BSS_INFO_MAX);
2116 if (err) {
2117 WL_ERR("WLC_GET_BSS_INFO failed: %d\n", err);
2118 goto CleanUp;
2119 }
2120
2121 bi = (struct brcmf_bss_info_le *)(buf + 4);
2122
2123 channel = bi->ctl_ch ? bi->ctl_ch :
2124 CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
2125
2126 if (channel <= CH_MAX_2G_CHANNEL)
2127 band = wiphy->bands[IEEE80211_BAND_2GHZ];
2128 else
2129 band = wiphy->bands[IEEE80211_BAND_5GHZ];
2130
2131 freq = ieee80211_channel_to_frequency(channel, band->band);
2132 notify_channel = ieee80211_get_channel(wiphy, freq);
2133
2134 notify_capability = le16_to_cpu(bi->capability);
2135 notify_interval = le16_to_cpu(bi->beacon_period);
2136 notify_ie = (u8 *)bi + le16_to_cpu(bi->ie_offset);
2137 notify_ielen = le32_to_cpu(bi->ie_length);
2138 notify_signal = (s16)le16_to_cpu(bi->RSSI) * 100;
2139
2140 WL_CONN("channel: %d(%d)\n", channel, freq);
2141 WL_CONN("capability: %X\n", notify_capability);
2142 WL_CONN("beacon interval: %d\n", notify_interval);
2143 WL_CONN("signal: %d\n", notify_signal);
2144
2145 bss = cfg80211_inform_bss(wiphy, notify_channel, bssid,
2146 0, notify_capability, notify_interval,
2147 notify_ie, notify_ielen, notify_signal, GFP_KERNEL);
2148
2149 if (!bss) {
2150 err = -ENOMEM;
2151 goto CleanUp;
2152 }
2153
2154 cfg80211_put_bss(bss);
2155
2156 CleanUp:
2157
2158 kfree(buf);
2159
2160 WL_TRACE("Exit\n");
2161
2162 return err;
2163 }
2164
2165 static bool brcmf_is_ibssmode(struct brcmf_cfg80211_priv *cfg_priv)
2166 {
2167 return cfg_priv->conf->mode == WL_MODE_IBSS;
2168 }
2169
2170 /*
2171 * Traverse a string of 1-byte tag/1-byte length/variable-length value
2172 * triples, returning a pointer to the substring whose first element
2173 * matches tag
2174 */
2175 static struct brcmf_tlv *brcmf_parse_tlvs(void *buf, int buflen, uint key)
2176 {
2177 struct brcmf_tlv *elt;
2178 int totlen;
2179
2180 elt = (struct brcmf_tlv *) buf;
2181 totlen = buflen;
2182
2183 /* find tagged parameter */
2184 while (totlen >= 2) {
2185 int len = elt->len;
2186
2187 /* validate remaining totlen */
2188 if ((elt->id == key) && (totlen >= (len + 2)))
2189 return elt;
2190
2191 elt = (struct brcmf_tlv *) ((u8 *) elt + (len + 2));
2192 totlen -= (len + 2);
2193 }
2194
2195 return NULL;
2196 }
2197
2198 static s32 brcmf_update_bss_info(struct brcmf_cfg80211_priv *cfg_priv)
2199 {
2200 struct brcmf_bss_info_le *bi;
2201 struct brcmf_ssid *ssid;
2202 struct brcmf_tlv *tim;
2203 u16 beacon_interval;
2204 u8 dtim_period;
2205 size_t ie_len;
2206 u8 *ie;
2207 s32 err = 0;
2208
2209 WL_TRACE("Enter\n");
2210 if (brcmf_is_ibssmode(cfg_priv))
2211 return err;
2212
2213 ssid = (struct brcmf_ssid *)brcmf_read_prof(cfg_priv, WL_PROF_SSID);
2214
2215 *(__le32 *)cfg_priv->extra_buf = cpu_to_le32(WL_EXTRA_BUF_MAX);
2216 err = brcmf_exec_dcmd(cfg_to_ndev(cfg_priv), BRCMF_C_GET_BSS_INFO,
2217 cfg_priv->extra_buf, WL_EXTRA_BUF_MAX);
2218 if (err) {
2219 WL_ERR("Could not get bss info %d\n", err);
2220 goto update_bss_info_out;
2221 }
2222
2223 bi = (struct brcmf_bss_info_le *)(cfg_priv->extra_buf + 4);
2224 err = brcmf_inform_single_bss(cfg_priv, bi);
2225 if (err)
2226 goto update_bss_info_out;
2227
2228 ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
2229 ie_len = le32_to_cpu(bi->ie_length);
2230 beacon_interval = le16_to_cpu(bi->beacon_period);
2231
2232 tim = brcmf_parse_tlvs(ie, ie_len, WLAN_EID_TIM);
2233 if (tim)
2234 dtim_period = tim->data[1];
2235 else {
2236 /*
2237 * active scan was done so we could not get dtim
2238 * information out of probe response.
2239 * so we speficially query dtim information to dongle.
2240 */
2241 u32 var;
2242 err = brcmf_dev_intvar_get(cfg_to_ndev(cfg_priv),
2243 "dtim_assoc", &var);
2244 if (err) {
2245 WL_ERR("wl dtim_assoc failed (%d)\n", err);
2246 goto update_bss_info_out;
2247 }
2248 dtim_period = (u8)var;
2249 }
2250
2251 brcmf_update_prof(cfg_priv, NULL, &beacon_interval, WL_PROF_BEACONINT);
2252 brcmf_update_prof(cfg_priv, NULL, &dtim_period, WL_PROF_DTIMPERIOD);
2253
2254 update_bss_info_out:
2255 WL_TRACE("Exit");
2256 return err;
2257 }
2258
2259 static void brcmf_term_iscan(struct brcmf_cfg80211_priv *cfg_priv)
2260 {
2261 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv);
2262 struct brcmf_ssid ssid;
2263
2264 if (cfg_priv->iscan_on) {
2265 iscan->state = WL_ISCAN_STATE_IDLE;
2266
2267 if (iscan->timer_on) {
2268 del_timer_sync(&iscan->timer);
2269 iscan->timer_on = 0;
2270 }
2271
2272 cancel_work_sync(&iscan->work);
2273
2274 /* Abort iscan running in FW */
2275 memset(&ssid, 0, sizeof(ssid));
2276 brcmf_run_iscan(iscan, &ssid, WL_SCAN_ACTION_ABORT);
2277 }
2278 }
2279
2280 static void brcmf_notify_iscan_complete(struct brcmf_cfg80211_iscan_ctrl *iscan,
2281 bool aborted)
2282 {
2283 struct brcmf_cfg80211_priv *cfg_priv = iscan_to_cfg(iscan);
2284 struct net_device *ndev = cfg_to_ndev(cfg_priv);
2285
2286 if (!test_and_clear_bit(WL_STATUS_SCANNING, &cfg_priv->status)) {
2287 WL_ERR("Scan complete while device not scanning\n");
2288 return;
2289 }
2290 if (cfg_priv->scan_request) {
2291 WL_SCAN("ISCAN Completed scan: %s\n",
2292 aborted ? "Aborted" : "Done");
2293 cfg80211_scan_done(cfg_priv->scan_request, aborted);
2294 brcmf_set_mpc(ndev, 1);
2295 cfg_priv->scan_request = NULL;
2296 }
2297 cfg_priv->iscan_kickstart = false;
2298 }
2299
2300 static s32 brcmf_wakeup_iscan(struct brcmf_cfg80211_iscan_ctrl *iscan)
2301 {
2302 if (iscan->state != WL_ISCAN_STATE_IDLE) {
2303 WL_SCAN("wake up iscan\n");
2304 schedule_work(&iscan->work);
2305 return 0;
2306 }
2307
2308 return -EIO;
2309 }
2310
2311 static s32
2312 brcmf_get_iscan_results(struct brcmf_cfg80211_iscan_ctrl *iscan, u32 *status,
2313 struct brcmf_scan_results **bss_list)
2314 {
2315 struct brcmf_iscan_results list;
2316 struct brcmf_scan_results *results;
2317 struct brcmf_scan_results_le *results_le;
2318 struct brcmf_iscan_results *list_buf;
2319 s32 err = 0;
2320
2321 memset(iscan->scan_buf, 0, WL_ISCAN_BUF_MAX);
2322 list_buf = (struct brcmf_iscan_results *)iscan->scan_buf;
2323 results = &list_buf->results;
2324 results_le = &list_buf->results_le;
2325 results->buflen = BRCMF_ISCAN_RESULTS_FIXED_SIZE;
2326 results->version = 0;
2327 results->count = 0;
2328
2329 memset(&list, 0, sizeof(list));
2330 list.results_le.buflen = cpu_to_le32(WL_ISCAN_BUF_MAX);
2331 err = brcmf_dev_iovar_getbuf(iscan->ndev, "iscanresults", &list,
2332 BRCMF_ISCAN_RESULTS_FIXED_SIZE,
2333 iscan->scan_buf, WL_ISCAN_BUF_MAX);
2334 if (err) {
2335 WL_ERR("error (%d)\n", err);
2336 return err;
2337 }
2338 results->buflen = le32_to_cpu(results_le->buflen);
2339 results->version = le32_to_cpu(results_le->version);
2340 results->count = le32_to_cpu(results_le->count);
2341 WL_SCAN("results->count = %d\n", results_le->count);
2342 WL_SCAN("results->buflen = %d\n", results_le->buflen);
2343 *status = le32_to_cpu(list_buf->status_le);
2344 WL_SCAN("status = %d\n", *status);
2345 *bss_list = results;
2346
2347 return err;
2348 }
2349
2350 static s32 brcmf_iscan_done(struct brcmf_cfg80211_priv *cfg_priv)
2351 {
2352 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan;
2353 s32 err = 0;
2354
2355 iscan->state = WL_ISCAN_STATE_IDLE;
2356 brcmf_inform_bss(cfg_priv);
2357 brcmf_notify_iscan_complete(iscan, false);
2358
2359 return err;
2360 }
2361
2362 static s32 brcmf_iscan_pending(struct brcmf_cfg80211_priv *cfg_priv)
2363 {
2364 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan;
2365 s32 err = 0;
2366
2367 /* Reschedule the timer */
2368 mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000);
2369 iscan->timer_on = 1;
2370
2371 return err;
2372 }
2373
2374 static s32 brcmf_iscan_inprogress(struct brcmf_cfg80211_priv *cfg_priv)
2375 {
2376 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan;
2377 s32 err = 0;
2378
2379 brcmf_inform_bss(cfg_priv);
2380 brcmf_run_iscan(iscan, NULL, BRCMF_SCAN_ACTION_CONTINUE);
2381 /* Reschedule the timer */
2382 mod_timer(&iscan->timer, jiffies + iscan->timer_ms * HZ / 1000);
2383 iscan->timer_on = 1;
2384
2385 return err;
2386 }
2387
2388 static s32 brcmf_iscan_aborted(struct brcmf_cfg80211_priv *cfg_priv)
2389 {
2390 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_priv->iscan;
2391 s32 err = 0;
2392
2393 iscan->state = WL_ISCAN_STATE_IDLE;
2394 brcmf_notify_iscan_complete(iscan, true);
2395
2396 return err;
2397 }
2398
2399 static void brcmf_cfg80211_iscan_handler(struct work_struct *work)
2400 {
2401 struct brcmf_cfg80211_iscan_ctrl *iscan =
2402 container_of(work, struct brcmf_cfg80211_iscan_ctrl,
2403 work);
2404 struct brcmf_cfg80211_priv *cfg_priv = iscan_to_cfg(iscan);
2405 struct brcmf_cfg80211_iscan_eloop *el = &iscan->el;
2406 u32 status = BRCMF_SCAN_RESULTS_PARTIAL;
2407
2408 if (iscan->timer_on) {
2409 del_timer_sync(&iscan->timer);
2410 iscan->timer_on = 0;
2411 }
2412
2413 if (brcmf_get_iscan_results(iscan, &status, &cfg_priv->bss_list)) {
2414 status = BRCMF_SCAN_RESULTS_ABORTED;
2415 WL_ERR("Abort iscan\n");
2416 }
2417
2418 el->handler[status](cfg_priv);
2419 }
2420
2421 static void brcmf_iscan_timer(unsigned long data)
2422 {
2423 struct brcmf_cfg80211_iscan_ctrl *iscan =
2424 (struct brcmf_cfg80211_iscan_ctrl *)data;
2425
2426 if (iscan) {
2427 iscan->timer_on = 0;
2428 WL_SCAN("timer expired\n");
2429 brcmf_wakeup_iscan(iscan);
2430 }
2431 }
2432
2433 static s32 brcmf_invoke_iscan(struct brcmf_cfg80211_priv *cfg_priv)
2434 {
2435 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv);
2436
2437 if (cfg_priv->iscan_on) {
2438 iscan->state = WL_ISCAN_STATE_IDLE;
2439 INIT_WORK(&iscan->work, brcmf_cfg80211_iscan_handler);
2440 }
2441
2442 return 0;
2443 }
2444
2445 static void brcmf_init_iscan_eloop(struct brcmf_cfg80211_iscan_eloop *el)
2446 {
2447 memset(el, 0, sizeof(*el));
2448 el->handler[BRCMF_SCAN_RESULTS_SUCCESS] = brcmf_iscan_done;
2449 el->handler[BRCMF_SCAN_RESULTS_PARTIAL] = brcmf_iscan_inprogress;
2450 el->handler[BRCMF_SCAN_RESULTS_PENDING] = brcmf_iscan_pending;
2451 el->handler[BRCMF_SCAN_RESULTS_ABORTED] = brcmf_iscan_aborted;
2452 el->handler[BRCMF_SCAN_RESULTS_NO_MEM] = brcmf_iscan_aborted;
2453 }
2454
2455 static s32 brcmf_init_iscan(struct brcmf_cfg80211_priv *cfg_priv)
2456 {
2457 struct brcmf_cfg80211_iscan_ctrl *iscan = cfg_to_iscan(cfg_priv);
2458 int err = 0;
2459
2460 if (cfg_priv->iscan_on) {
2461 iscan->ndev = cfg_to_ndev(cfg_priv);
2462 brcmf_init_iscan_eloop(&iscan->el);
2463 iscan->timer_ms = WL_ISCAN_TIMER_INTERVAL_MS;
2464 init_timer(&iscan->timer);
2465 iscan->timer.data = (unsigned long) iscan;
2466 iscan->timer.function = brcmf_iscan_timer;
2467 err = brcmf_invoke_iscan(cfg_priv);
2468 if (!err)
2469 iscan->data = cfg_priv;
2470 }
2471
2472 return err;
2473 }
2474
2475 static __always_inline void brcmf_delay(u32 ms)
2476 {
2477 if (ms < 1000 / HZ) {
2478 cond_resched();
2479 mdelay(ms);
2480 } else {
2481 msleep(ms);
2482 }
2483 }
2484
2485 static s32 brcmf_cfg80211_resume(struct wiphy *wiphy)
2486 {
2487 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
2488
2489 /*
2490 * Check for WL_STATUS_READY before any function call which
2491 * could result is bus access. Don't block the resume for
2492 * any driver error conditions
2493 */
2494 WL_TRACE("Enter\n");
2495
2496 if (test_bit(WL_STATUS_READY, &cfg_priv->status))
2497 brcmf_invoke_iscan(wiphy_to_cfg(wiphy));
2498
2499 WL_TRACE("Exit\n");
2500 return 0;
2501 }
2502
2503 static s32 brcmf_cfg80211_suspend(struct wiphy *wiphy,
2504 struct cfg80211_wowlan *wow)
2505 {
2506 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
2507 struct net_device *ndev = cfg_to_ndev(cfg_priv);
2508
2509 WL_TRACE("Enter\n");
2510
2511 /*
2512 * Check for WL_STATUS_READY before any function call which
2513 * could result is bus access. Don't block the suspend for
2514 * any driver error conditions
2515 */
2516
2517 /*
2518 * While going to suspend if associated with AP disassociate
2519 * from AP to save power while system is in suspended state
2520 */
2521 if ((test_bit(WL_STATUS_CONNECTED, &cfg_priv->status) ||
2522 test_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) &&
2523 test_bit(WL_STATUS_READY, &cfg_priv->status)) {
2524 WL_INFO("Disassociating from AP"
2525 " while entering suspend state\n");
2526 brcmf_link_down(cfg_priv);
2527
2528 /*
2529 * Make sure WPA_Supplicant receives all the event
2530 * generated due to DISASSOC call to the fw to keep
2531 * the state fw and WPA_Supplicant state consistent
2532 */
2533 brcmf_delay(500);
2534 }
2535
2536 set_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status);
2537 if (test_bit(WL_STATUS_READY, &cfg_priv->status))
2538 brcmf_term_iscan(cfg_priv);
2539
2540 if (cfg_priv->scan_request) {
2541 /* Indidate scan abort to cfg80211 layer */
2542 WL_INFO("Terminating scan in progress\n");
2543 cfg80211_scan_done(cfg_priv->scan_request, true);
2544 cfg_priv->scan_request = NULL;
2545 }
2546 clear_bit(WL_STATUS_SCANNING, &cfg_priv->status);
2547 clear_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status);
2548
2549 /* Turn off watchdog timer */
2550 if (test_bit(WL_STATUS_READY, &cfg_priv->status)) {
2551 WL_INFO("Enable MPC\n");
2552 brcmf_set_mpc(ndev, 1);
2553 }
2554
2555 WL_TRACE("Exit\n");
2556
2557 return 0;
2558 }
2559
2560 static __used s32
2561 brcmf_dev_bufvar_set(struct net_device *ndev, s8 *name, s8 *buf, s32 len)
2562 {
2563 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
2564 u32 buflen;
2565
2566 buflen = brcmf_c_mkiovar(name, buf, len, cfg_priv->dcmd_buf,
2567 WL_DCMD_LEN_MAX);
2568 BUG_ON(!buflen);
2569
2570 return brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, cfg_priv->dcmd_buf,
2571 buflen);
2572 }
2573
2574 static s32
2575 brcmf_dev_bufvar_get(struct net_device *ndev, s8 *name, s8 *buf,
2576 s32 buf_len)
2577 {
2578 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
2579 u32 len;
2580 s32 err = 0;
2581
2582 len = brcmf_c_mkiovar(name, NULL, 0, cfg_priv->dcmd_buf,
2583 WL_DCMD_LEN_MAX);
2584 BUG_ON(!len);
2585 err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, cfg_priv->dcmd_buf,
2586 WL_DCMD_LEN_MAX);
2587 if (err) {
2588 WL_ERR("error (%d)\n", err);
2589 return err;
2590 }
2591 memcpy(buf, cfg_priv->dcmd_buf, buf_len);
2592
2593 return err;
2594 }
2595
2596 static __used s32
2597 brcmf_update_pmklist(struct net_device *ndev,
2598 struct brcmf_cfg80211_pmk_list *pmk_list, s32 err)
2599 {
2600 int i, j;
2601 int pmkid_len;
2602
2603 pmkid_len = le32_to_cpu(pmk_list->pmkids.npmkid);
2604
2605 WL_CONN("No of elements %d\n", pmkid_len);
2606 for (i = 0; i < pmkid_len; i++) {
2607 WL_CONN("PMKID[%d]: %pM =\n", i,
2608 &pmk_list->pmkids.pmkid[i].BSSID);
2609 for (j = 0; j < WLAN_PMKID_LEN; j++)
2610 WL_CONN("%02x\n", pmk_list->pmkids.pmkid[i].PMKID[j]);
2611 }
2612
2613 if (!err)
2614 brcmf_dev_bufvar_set(ndev, "pmkid_info", (char *)pmk_list,
2615 sizeof(*pmk_list));
2616
2617 return err;
2618 }
2619
2620 static s32
2621 brcmf_cfg80211_set_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2622 struct cfg80211_pmksa *pmksa)
2623 {
2624 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
2625 struct pmkid_list *pmkids = &cfg_priv->pmk_list->pmkids;
2626 s32 err = 0;
2627 int i;
2628 int pmkid_len;
2629
2630 WL_TRACE("Enter\n");
2631 if (!check_sys_up(wiphy))
2632 return -EIO;
2633
2634 pmkid_len = le32_to_cpu(pmkids->npmkid);
2635 for (i = 0; i < pmkid_len; i++)
2636 if (!memcmp(pmksa->bssid, pmkids->pmkid[i].BSSID, ETH_ALEN))
2637 break;
2638 if (i < WL_NUM_PMKIDS_MAX) {
2639 memcpy(pmkids->pmkid[i].BSSID, pmksa->bssid, ETH_ALEN);
2640 memcpy(pmkids->pmkid[i].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2641 if (i == pmkid_len) {
2642 pmkid_len++;
2643 pmkids->npmkid = cpu_to_le32(pmkid_len);
2644 }
2645 } else
2646 err = -EINVAL;
2647
2648 WL_CONN("set_pmksa,IW_PMKSA_ADD - PMKID: %pM =\n",
2649 pmkids->pmkid[pmkid_len].BSSID);
2650 for (i = 0; i < WLAN_PMKID_LEN; i++)
2651 WL_CONN("%02x\n", pmkids->pmkid[pmkid_len].PMKID[i]);
2652
2653 err = brcmf_update_pmklist(ndev, cfg_priv->pmk_list, err);
2654
2655 WL_TRACE("Exit\n");
2656 return err;
2657 }
2658
2659 static s32
2660 brcmf_cfg80211_del_pmksa(struct wiphy *wiphy, struct net_device *ndev,
2661 struct cfg80211_pmksa *pmksa)
2662 {
2663 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
2664 struct pmkid_list pmkid;
2665 s32 err = 0;
2666 int i, pmkid_len;
2667
2668 WL_TRACE("Enter\n");
2669 if (!check_sys_up(wiphy))
2670 return -EIO;
2671
2672 memcpy(&pmkid.pmkid[0].BSSID, pmksa->bssid, ETH_ALEN);
2673 memcpy(&pmkid.pmkid[0].PMKID, pmksa->pmkid, WLAN_PMKID_LEN);
2674
2675 WL_CONN("del_pmksa,IW_PMKSA_REMOVE - PMKID: %pM =\n",
2676 &pmkid.pmkid[0].BSSID);
2677 for (i = 0; i < WLAN_PMKID_LEN; i++)
2678 WL_CONN("%02x\n", pmkid.pmkid[0].PMKID[i]);
2679
2680 pmkid_len = le32_to_cpu(cfg_priv->pmk_list->pmkids.npmkid);
2681 for (i = 0; i < pmkid_len; i++)
2682 if (!memcmp
2683 (pmksa->bssid, &cfg_priv->pmk_list->pmkids.pmkid[i].BSSID,
2684 ETH_ALEN))
2685 break;
2686
2687 if ((pmkid_len > 0)
2688 && (i < pmkid_len)) {
2689 memset(&cfg_priv->pmk_list->pmkids.pmkid[i], 0,
2690 sizeof(struct pmkid));
2691 for (; i < (pmkid_len - 1); i++) {
2692 memcpy(&cfg_priv->pmk_list->pmkids.pmkid[i].BSSID,
2693 &cfg_priv->pmk_list->pmkids.pmkid[i + 1].BSSID,
2694 ETH_ALEN);
2695 memcpy(&cfg_priv->pmk_list->pmkids.pmkid[i].PMKID,
2696 &cfg_priv->pmk_list->pmkids.pmkid[i + 1].PMKID,
2697 WLAN_PMKID_LEN);
2698 }
2699 cfg_priv->pmk_list->pmkids.npmkid = cpu_to_le32(pmkid_len - 1);
2700 } else
2701 err = -EINVAL;
2702
2703 err = brcmf_update_pmklist(ndev, cfg_priv->pmk_list, err);
2704
2705 WL_TRACE("Exit\n");
2706 return err;
2707
2708 }
2709
2710 static s32
2711 brcmf_cfg80211_flush_pmksa(struct wiphy *wiphy, struct net_device *ndev)
2712 {
2713 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
2714 s32 err = 0;
2715
2716 WL_TRACE("Enter\n");
2717 if (!check_sys_up(wiphy))
2718 return -EIO;
2719
2720 memset(cfg_priv->pmk_list, 0, sizeof(*cfg_priv->pmk_list));
2721 err = brcmf_update_pmklist(ndev, cfg_priv->pmk_list, err);
2722
2723 WL_TRACE("Exit\n");
2724 return err;
2725
2726 }
2727
2728 #ifdef CONFIG_NL80211_TESTMODE
2729 static int brcmf_cfg80211_testmode(struct wiphy *wiphy, void *data, int len)
2730 {
2731 struct brcmf_cfg80211_priv *cfg_priv = wiphy_to_cfg(wiphy);
2732 struct net_device *ndev = cfg_priv->wdev->netdev;
2733 struct brcmf_dcmd *dcmd = data;
2734 struct sk_buff *reply;
2735 int ret;
2736
2737 ret = brcmf_netlink_dcmd(ndev, dcmd);
2738 if (ret == 0) {
2739 reply = cfg80211_testmode_alloc_reply_skb(wiphy, sizeof(*dcmd));
2740 nla_put(reply, NL80211_ATTR_TESTDATA, sizeof(*dcmd), dcmd);
2741 ret = cfg80211_testmode_reply(reply);
2742 }
2743 return ret;
2744 }
2745 #endif
2746
2747 static struct cfg80211_ops wl_cfg80211_ops = {
2748 .change_virtual_intf = brcmf_cfg80211_change_iface,
2749 .scan = brcmf_cfg80211_scan,
2750 .set_wiphy_params = brcmf_cfg80211_set_wiphy_params,
2751 .join_ibss = brcmf_cfg80211_join_ibss,
2752 .leave_ibss = brcmf_cfg80211_leave_ibss,
2753 .get_station = brcmf_cfg80211_get_station,
2754 .set_tx_power = brcmf_cfg80211_set_tx_power,
2755 .get_tx_power = brcmf_cfg80211_get_tx_power,
2756 .add_key = brcmf_cfg80211_add_key,
2757 .del_key = brcmf_cfg80211_del_key,
2758 .get_key = brcmf_cfg80211_get_key,
2759 .set_default_key = brcmf_cfg80211_config_default_key,
2760 .set_default_mgmt_key = brcmf_cfg80211_config_default_mgmt_key,
2761 .set_power_mgmt = brcmf_cfg80211_set_power_mgmt,
2762 .set_bitrate_mask = brcmf_cfg80211_set_bitrate_mask,
2763 .connect = brcmf_cfg80211_connect,
2764 .disconnect = brcmf_cfg80211_disconnect,
2765 .suspend = brcmf_cfg80211_suspend,
2766 .resume = brcmf_cfg80211_resume,
2767 .set_pmksa = brcmf_cfg80211_set_pmksa,
2768 .del_pmksa = brcmf_cfg80211_del_pmksa,
2769 .flush_pmksa = brcmf_cfg80211_flush_pmksa,
2770 #ifdef CONFIG_NL80211_TESTMODE
2771 .testmode_cmd = brcmf_cfg80211_testmode
2772 #endif
2773 };
2774
2775 static s32 brcmf_mode_to_nl80211_iftype(s32 mode)
2776 {
2777 s32 err = 0;
2778
2779 switch (mode) {
2780 case WL_MODE_BSS:
2781 return NL80211_IFTYPE_STATION;
2782 case WL_MODE_IBSS:
2783 return NL80211_IFTYPE_ADHOC;
2784 default:
2785 return NL80211_IFTYPE_UNSPECIFIED;
2786 }
2787
2788 return err;
2789 }
2790
2791 static struct wireless_dev *brcmf_alloc_wdev(s32 sizeof_iface,
2792 struct device *ndev)
2793 {
2794 struct wireless_dev *wdev;
2795 s32 err = 0;
2796
2797 wdev = kzalloc(sizeof(*wdev), GFP_KERNEL);
2798 if (!wdev)
2799 return ERR_PTR(-ENOMEM);
2800
2801 wdev->wiphy =
2802 wiphy_new(&wl_cfg80211_ops,
2803 sizeof(struct brcmf_cfg80211_priv) + sizeof_iface);
2804 if (!wdev->wiphy) {
2805 WL_ERR("Could not allocate wiphy device\n");
2806 err = -ENOMEM;
2807 goto wiphy_new_out;
2808 }
2809 set_wiphy_dev(wdev->wiphy, ndev);
2810 wdev->wiphy->max_scan_ssids = WL_NUM_SCAN_MAX;
2811 wdev->wiphy->max_num_pmkids = WL_NUM_PMKIDS_MAX;
2812 wdev->wiphy->interface_modes =
2813 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
2814 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &__wl_band_2ghz;
2815 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_a; /* Set
2816 * it as 11a by default.
2817 * This will be updated with
2818 * 11n phy tables in
2819 * "ifconfig up"
2820 * if phy has 11n capability
2821 */
2822 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2823 wdev->wiphy->cipher_suites = __wl_cipher_suites;
2824 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
2825 wdev->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; /* enable power
2826 * save mode
2827 * by default
2828 */
2829 err = wiphy_register(wdev->wiphy);
2830 if (err < 0) {
2831 WL_ERR("Could not register wiphy device (%d)\n", err);
2832 goto wiphy_register_out;
2833 }
2834 return wdev;
2835
2836 wiphy_register_out:
2837 wiphy_free(wdev->wiphy);
2838
2839 wiphy_new_out:
2840 kfree(wdev);
2841
2842 return ERR_PTR(err);
2843 }
2844
2845 static void brcmf_free_wdev(struct brcmf_cfg80211_priv *cfg_priv)
2846 {
2847 struct wireless_dev *wdev = cfg_priv->wdev;
2848
2849 if (!wdev) {
2850 WL_ERR("wdev is invalid\n");
2851 return;
2852 }
2853 wiphy_unregister(wdev->wiphy);
2854 wiphy_free(wdev->wiphy);
2855 kfree(wdev);
2856 cfg_priv->wdev = NULL;
2857 }
2858
2859 static bool brcmf_is_linkup(struct brcmf_cfg80211_priv *cfg_priv,
2860 const struct brcmf_event_msg *e)
2861 {
2862 u32 event = be32_to_cpu(e->event_type);
2863 u32 status = be32_to_cpu(e->status);
2864
2865 if (event == BRCMF_E_SET_SSID && status == BRCMF_E_STATUS_SUCCESS) {
2866 WL_CONN("Processing set ssid\n");
2867 cfg_priv->link_up = true;
2868 return true;
2869 }
2870
2871 return false;
2872 }
2873
2874 static bool brcmf_is_linkdown(struct brcmf_cfg80211_priv *cfg_priv,
2875 const struct brcmf_event_msg *e)
2876 {
2877 u32 event = be32_to_cpu(e->event_type);
2878 u16 flags = be16_to_cpu(e->flags);
2879
2880 if (event == BRCMF_E_LINK && (!(flags & BRCMF_EVENT_MSG_LINK))) {
2881 WL_CONN("Processing link down\n");
2882 return true;
2883 }
2884 return false;
2885 }
2886
2887 static bool brcmf_is_nonetwork(struct brcmf_cfg80211_priv *cfg_priv,
2888 const struct brcmf_event_msg *e)
2889 {
2890 u32 event = be32_to_cpu(e->event_type);
2891 u32 status = be32_to_cpu(e->status);
2892
2893 if (event == BRCMF_E_LINK && status == BRCMF_E_STATUS_NO_NETWORKS) {
2894 WL_CONN("Processing Link %s & no network found\n",
2895 be16_to_cpu(e->flags) & BRCMF_EVENT_MSG_LINK ?
2896 "up" : "down");
2897 return true;
2898 }
2899
2900 if (event == BRCMF_E_SET_SSID && status != BRCMF_E_STATUS_SUCCESS) {
2901 WL_CONN("Processing connecting & no network found\n");
2902 return true;
2903 }
2904
2905 return false;
2906 }
2907
2908 static void brcmf_clear_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv)
2909 {
2910 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv);
2911
2912 kfree(conn_info->req_ie);
2913 conn_info->req_ie = NULL;
2914 conn_info->req_ie_len = 0;
2915 kfree(conn_info->resp_ie);
2916 conn_info->resp_ie = NULL;
2917 conn_info->resp_ie_len = 0;
2918 }
2919
2920 static s32 brcmf_get_assoc_ies(struct brcmf_cfg80211_priv *cfg_priv)
2921 {
2922 struct net_device *ndev = cfg_to_ndev(cfg_priv);
2923 struct brcmf_cfg80211_assoc_ielen_le *assoc_info;
2924 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv);
2925 u32 req_len;
2926 u32 resp_len;
2927 s32 err = 0;
2928
2929 brcmf_clear_assoc_ies(cfg_priv);
2930
2931 err = brcmf_dev_bufvar_get(ndev, "assoc_info", cfg_priv->extra_buf,
2932 WL_ASSOC_INFO_MAX);
2933 if (err) {
2934 WL_ERR("could not get assoc info (%d)\n", err);
2935 return err;
2936 }
2937 assoc_info =
2938 (struct brcmf_cfg80211_assoc_ielen_le *)cfg_priv->extra_buf;
2939 req_len = le32_to_cpu(assoc_info->req_len);
2940 resp_len = le32_to_cpu(assoc_info->resp_len);
2941 if (req_len) {
2942 err = brcmf_dev_bufvar_get(ndev, "assoc_req_ies",
2943 cfg_priv->extra_buf,
2944 WL_ASSOC_INFO_MAX);
2945 if (err) {
2946 WL_ERR("could not get assoc req (%d)\n", err);
2947 return err;
2948 }
2949 conn_info->req_ie_len = req_len;
2950 conn_info->req_ie =
2951 kmemdup(cfg_priv->extra_buf, conn_info->req_ie_len,
2952 GFP_KERNEL);
2953 } else {
2954 conn_info->req_ie_len = 0;
2955 conn_info->req_ie = NULL;
2956 }
2957 if (resp_len) {
2958 err = brcmf_dev_bufvar_get(ndev, "assoc_resp_ies",
2959 cfg_priv->extra_buf,
2960 WL_ASSOC_INFO_MAX);
2961 if (err) {
2962 WL_ERR("could not get assoc resp (%d)\n", err);
2963 return err;
2964 }
2965 conn_info->resp_ie_len = resp_len;
2966 conn_info->resp_ie =
2967 kmemdup(cfg_priv->extra_buf, conn_info->resp_ie_len,
2968 GFP_KERNEL);
2969 } else {
2970 conn_info->resp_ie_len = 0;
2971 conn_info->resp_ie = NULL;
2972 }
2973 WL_CONN("req len (%d) resp len (%d)\n",
2974 conn_info->req_ie_len, conn_info->resp_ie_len);
2975
2976 return err;
2977 }
2978
2979 static s32
2980 brcmf_bss_roaming_done(struct brcmf_cfg80211_priv *cfg_priv,
2981 struct net_device *ndev,
2982 const struct brcmf_event_msg *e)
2983 {
2984 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv);
2985 struct wiphy *wiphy = cfg_to_wiphy(cfg_priv);
2986 struct brcmf_channel_info_le channel_le;
2987 struct ieee80211_channel *notify_channel;
2988 struct ieee80211_supported_band *band;
2989 u32 freq;
2990 s32 err = 0;
2991 u32 target_channel;
2992
2993 WL_TRACE("Enter\n");
2994
2995 brcmf_get_assoc_ies(cfg_priv);
2996 brcmf_update_prof(cfg_priv, NULL, &e->addr, WL_PROF_BSSID);
2997 brcmf_update_bss_info(cfg_priv);
2998
2999 brcmf_exec_dcmd(ndev, BRCMF_C_GET_CHANNEL, &channel_le,
3000 sizeof(channel_le));
3001
3002 target_channel = le32_to_cpu(channel_le.target_channel);
3003 WL_CONN("Roamed to channel %d\n", target_channel);
3004
3005 if (target_channel <= CH_MAX_2G_CHANNEL)
3006 band = wiphy->bands[IEEE80211_BAND_2GHZ];
3007 else
3008 band = wiphy->bands[IEEE80211_BAND_5GHZ];
3009
3010 freq = ieee80211_channel_to_frequency(target_channel, band->band);
3011 notify_channel = ieee80211_get_channel(wiphy, freq);
3012
3013 cfg80211_roamed(ndev, notify_channel,
3014 (u8 *)brcmf_read_prof(cfg_priv, WL_PROF_BSSID),
3015 conn_info->req_ie, conn_info->req_ie_len,
3016 conn_info->resp_ie, conn_info->resp_ie_len, GFP_KERNEL);
3017 WL_CONN("Report roaming result\n");
3018
3019 set_bit(WL_STATUS_CONNECTED, &cfg_priv->status);
3020 WL_TRACE("Exit\n");
3021 return err;
3022 }
3023
3024 static s32
3025 brcmf_bss_connect_done(struct brcmf_cfg80211_priv *cfg_priv,
3026 struct net_device *ndev, const struct brcmf_event_msg *e,
3027 bool completed)
3028 {
3029 struct brcmf_cfg80211_connect_info *conn_info = cfg_to_conn(cfg_priv);
3030 s32 err = 0;
3031
3032 WL_TRACE("Enter\n");
3033
3034 if (test_and_clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) {
3035 if (completed) {
3036 brcmf_get_assoc_ies(cfg_priv);
3037 brcmf_update_prof(cfg_priv, NULL, &e->addr,
3038 WL_PROF_BSSID);
3039 brcmf_update_bss_info(cfg_priv);
3040 }
3041 cfg80211_connect_result(ndev,
3042 (u8 *)brcmf_read_prof(cfg_priv,
3043 WL_PROF_BSSID),
3044 conn_info->req_ie,
3045 conn_info->req_ie_len,
3046 conn_info->resp_ie,
3047 conn_info->resp_ie_len,
3048 completed ? WLAN_STATUS_SUCCESS :
3049 WLAN_STATUS_AUTH_TIMEOUT,
3050 GFP_KERNEL);
3051 if (completed)
3052 set_bit(WL_STATUS_CONNECTED, &cfg_priv->status);
3053 WL_CONN("Report connect result - connection %s\n",
3054 completed ? "succeeded" : "failed");
3055 }
3056 WL_TRACE("Exit\n");
3057 return err;
3058 }
3059
3060 static s32
3061 brcmf_notify_connect_status(struct brcmf_cfg80211_priv *cfg_priv,
3062 struct net_device *ndev,
3063 const struct brcmf_event_msg *e, void *data)
3064 {
3065 s32 err = 0;
3066
3067 if (brcmf_is_linkup(cfg_priv, e)) {
3068 WL_CONN("Linkup\n");
3069 if (brcmf_is_ibssmode(cfg_priv)) {
3070 brcmf_update_prof(cfg_priv, NULL, (void *)e->addr,
3071 WL_PROF_BSSID);
3072 wl_inform_ibss(cfg_priv, ndev, e->addr);
3073 cfg80211_ibss_joined(ndev, e->addr, GFP_KERNEL);
3074 clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
3075 set_bit(WL_STATUS_CONNECTED, &cfg_priv->status);
3076 } else
3077 brcmf_bss_connect_done(cfg_priv, ndev, e, true);
3078 } else if (brcmf_is_linkdown(cfg_priv, e)) {
3079 WL_CONN("Linkdown\n");
3080 if (brcmf_is_ibssmode(cfg_priv)) {
3081 clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
3082 if (test_and_clear_bit(WL_STATUS_CONNECTED,
3083 &cfg_priv->status))
3084 brcmf_link_down(cfg_priv);
3085 } else {
3086 brcmf_bss_connect_done(cfg_priv, ndev, e, false);
3087 if (test_and_clear_bit(WL_STATUS_CONNECTED,
3088 &cfg_priv->status)) {
3089 cfg80211_disconnected(ndev, 0, NULL, 0,
3090 GFP_KERNEL);
3091 brcmf_link_down(cfg_priv);
3092 }
3093 }
3094 brcmf_init_prof(cfg_priv->profile);
3095 } else if (brcmf_is_nonetwork(cfg_priv, e)) {
3096 if (brcmf_is_ibssmode(cfg_priv))
3097 clear_bit(WL_STATUS_CONNECTING, &cfg_priv->status);
3098 else
3099 brcmf_bss_connect_done(cfg_priv, ndev, e, false);
3100 }
3101
3102 return err;
3103 }
3104
3105 static s32
3106 brcmf_notify_roaming_status(struct brcmf_cfg80211_priv *cfg_priv,
3107 struct net_device *ndev,
3108 const struct brcmf_event_msg *e, void *data)
3109 {
3110 s32 err = 0;
3111 u32 event = be32_to_cpu(e->event_type);
3112 u32 status = be32_to_cpu(e->status);
3113
3114 if (event == BRCMF_E_ROAM && status == BRCMF_E_STATUS_SUCCESS) {
3115 if (test_bit(WL_STATUS_CONNECTED, &cfg_priv->status))
3116 brcmf_bss_roaming_done(cfg_priv, ndev, e);
3117 else
3118 brcmf_bss_connect_done(cfg_priv, ndev, e, true);
3119 }
3120
3121 return err;
3122 }
3123
3124 static s32
3125 brcmf_notify_mic_status(struct brcmf_cfg80211_priv *cfg_priv,
3126 struct net_device *ndev,
3127 const struct brcmf_event_msg *e, void *data)
3128 {
3129 u16 flags = be16_to_cpu(e->flags);
3130 enum nl80211_key_type key_type;
3131
3132 if (flags & BRCMF_EVENT_MSG_GROUP)
3133 key_type = NL80211_KEYTYPE_GROUP;
3134 else
3135 key_type = NL80211_KEYTYPE_PAIRWISE;
3136
3137 cfg80211_michael_mic_failure(ndev, (u8 *)&e->addr, key_type, -1,
3138 NULL, GFP_KERNEL);
3139
3140 return 0;
3141 }
3142
3143 static s32
3144 brcmf_notify_scan_status(struct brcmf_cfg80211_priv *cfg_priv,
3145 struct net_device *ndev,
3146 const struct brcmf_event_msg *e, void *data)
3147 {
3148 struct brcmf_channel_info_le channel_inform_le;
3149 struct brcmf_scan_results_le *bss_list_le;
3150 u32 len = WL_SCAN_BUF_MAX;
3151 s32 err = 0;
3152 bool scan_abort = false;
3153 u32 scan_channel;
3154
3155 WL_TRACE("Enter\n");
3156
3157 if (cfg_priv->iscan_on && cfg_priv->iscan_kickstart) {
3158 WL_TRACE("Exit\n");
3159 return brcmf_wakeup_iscan(cfg_to_iscan(cfg_priv));
3160 }
3161
3162 if (!test_and_clear_bit(WL_STATUS_SCANNING, &cfg_priv->status)) {
3163 WL_ERR("Scan complete while device not scanning\n");
3164 scan_abort = true;
3165 err = -EINVAL;
3166 goto scan_done_out;
3167 }
3168
3169 err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_CHANNEL, &channel_inform_le,
3170 sizeof(channel_inform_le));
3171 if (err) {
3172 WL_ERR("scan busy (%d)\n", err);
3173 scan_abort = true;
3174 goto scan_done_out;
3175 }
3176 scan_channel = le32_to_cpu(channel_inform_le.scan_channel);
3177 if (scan_channel)
3178 WL_CONN("channel_inform.scan_channel (%d)\n", scan_channel);
3179 cfg_priv->bss_list = cfg_priv->scan_results;
3180 bss_list_le = (struct brcmf_scan_results_le *) cfg_priv->bss_list;
3181
3182 memset(cfg_priv->scan_results, 0, len);
3183 bss_list_le->buflen = cpu_to_le32(len);
3184 err = brcmf_exec_dcmd(ndev, BRCMF_C_SCAN_RESULTS,
3185 cfg_priv->scan_results, len);
3186 if (err) {
3187 WL_ERR("%s Scan_results error (%d)\n", ndev->name, err);
3188 err = -EINVAL;
3189 scan_abort = true;
3190 goto scan_done_out;
3191 }
3192 cfg_priv->scan_results->buflen = le32_to_cpu(bss_list_le->buflen);
3193 cfg_priv->scan_results->version = le32_to_cpu(bss_list_le->version);
3194 cfg_priv->scan_results->count = le32_to_cpu(bss_list_le->count);
3195
3196 err = brcmf_inform_bss(cfg_priv);
3197 if (err) {
3198 scan_abort = true;
3199 goto scan_done_out;
3200 }
3201
3202 scan_done_out:
3203 if (cfg_priv->scan_request) {
3204 WL_SCAN("calling cfg80211_scan_done\n");
3205 cfg80211_scan_done(cfg_priv->scan_request, scan_abort);
3206 brcmf_set_mpc(ndev, 1);
3207 cfg_priv->scan_request = NULL;
3208 }
3209
3210 WL_TRACE("Exit\n");
3211
3212 return err;
3213 }
3214
3215 static void brcmf_init_conf(struct brcmf_cfg80211_conf *conf)
3216 {
3217 conf->mode = (u32)-1;
3218 conf->frag_threshold = (u32)-1;
3219 conf->rts_threshold = (u32)-1;
3220 conf->retry_short = (u32)-1;
3221 conf->retry_long = (u32)-1;
3222 conf->tx_power = -1;
3223 }
3224
3225 static void brcmf_init_eloop_handler(struct brcmf_cfg80211_event_loop *el)
3226 {
3227 memset(el, 0, sizeof(*el));
3228 el->handler[BRCMF_E_SCAN_COMPLETE] = brcmf_notify_scan_status;
3229 el->handler[BRCMF_E_LINK] = brcmf_notify_connect_status;
3230 el->handler[BRCMF_E_ROAM] = brcmf_notify_roaming_status;
3231 el->handler[BRCMF_E_MIC_ERROR] = brcmf_notify_mic_status;
3232 el->handler[BRCMF_E_SET_SSID] = brcmf_notify_connect_status;
3233 }
3234
3235 static void brcmf_deinit_priv_mem(struct brcmf_cfg80211_priv *cfg_priv)
3236 {
3237 kfree(cfg_priv->scan_results);
3238 cfg_priv->scan_results = NULL;
3239 kfree(cfg_priv->bss_info);
3240 cfg_priv->bss_info = NULL;
3241 kfree(cfg_priv->conf);
3242 cfg_priv->conf = NULL;
3243 kfree(cfg_priv->profile);
3244 cfg_priv->profile = NULL;
3245 kfree(cfg_priv->scan_req_int);
3246 cfg_priv->scan_req_int = NULL;
3247 kfree(cfg_priv->dcmd_buf);
3248 cfg_priv->dcmd_buf = NULL;
3249 kfree(cfg_priv->extra_buf);
3250 cfg_priv->extra_buf = NULL;
3251 kfree(cfg_priv->iscan);
3252 cfg_priv->iscan = NULL;
3253 kfree(cfg_priv->pmk_list);
3254 cfg_priv->pmk_list = NULL;
3255 }
3256
3257 static s32 brcmf_init_priv_mem(struct brcmf_cfg80211_priv *cfg_priv)
3258 {
3259 cfg_priv->scan_results = kzalloc(WL_SCAN_BUF_MAX, GFP_KERNEL);
3260 if (!cfg_priv->scan_results)
3261 goto init_priv_mem_out;
3262 cfg_priv->conf = kzalloc(sizeof(*cfg_priv->conf), GFP_KERNEL);
3263 if (!cfg_priv->conf)
3264 goto init_priv_mem_out;
3265 cfg_priv->profile = kzalloc(sizeof(*cfg_priv->profile), GFP_KERNEL);
3266 if (!cfg_priv->profile)
3267 goto init_priv_mem_out;
3268 cfg_priv->bss_info = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL);
3269 if (!cfg_priv->bss_info)
3270 goto init_priv_mem_out;
3271 cfg_priv->scan_req_int = kzalloc(sizeof(*cfg_priv->scan_req_int),
3272 GFP_KERNEL);
3273 if (!cfg_priv->scan_req_int)
3274 goto init_priv_mem_out;
3275 cfg_priv->dcmd_buf = kzalloc(WL_DCMD_LEN_MAX, GFP_KERNEL);
3276 if (!cfg_priv->dcmd_buf)
3277 goto init_priv_mem_out;
3278 cfg_priv->extra_buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
3279 if (!cfg_priv->extra_buf)
3280 goto init_priv_mem_out;
3281 cfg_priv->iscan = kzalloc(sizeof(*cfg_priv->iscan), GFP_KERNEL);
3282 if (!cfg_priv->iscan)
3283 goto init_priv_mem_out;
3284 cfg_priv->pmk_list = kzalloc(sizeof(*cfg_priv->pmk_list), GFP_KERNEL);
3285 if (!cfg_priv->pmk_list)
3286 goto init_priv_mem_out;
3287
3288 return 0;
3289
3290 init_priv_mem_out:
3291 brcmf_deinit_priv_mem(cfg_priv);
3292
3293 return -ENOMEM;
3294 }
3295
3296 /*
3297 * retrieve first queued event from head
3298 */
3299
3300 static struct brcmf_cfg80211_event_q *brcmf_deq_event(
3301 struct brcmf_cfg80211_priv *cfg_priv)
3302 {
3303 struct brcmf_cfg80211_event_q *e = NULL;
3304
3305 spin_lock_irq(&cfg_priv->evt_q_lock);
3306 if (!list_empty(&cfg_priv->evt_q_list)) {
3307 e = list_first_entry(&cfg_priv->evt_q_list,
3308 struct brcmf_cfg80211_event_q, evt_q_list);
3309 list_del(&e->evt_q_list);
3310 }
3311 spin_unlock_irq(&cfg_priv->evt_q_lock);
3312
3313 return e;
3314 }
3315
3316 /*
3317 * push event to tail of the queue
3318 *
3319 * remark: this function may not sleep as it is called in atomic context.
3320 */
3321
3322 static s32
3323 brcmf_enq_event(struct brcmf_cfg80211_priv *cfg_priv, u32 event,
3324 const struct brcmf_event_msg *msg, void *data)
3325 {
3326 struct brcmf_cfg80211_event_q *e;
3327 s32 err = 0;
3328 ulong flags;
3329 u32 data_len;
3330 u32 total_len;
3331
3332 total_len = sizeof(struct brcmf_cfg80211_event_q);
3333 if (data)
3334 data_len = be32_to_cpu(msg->datalen);
3335 else
3336 data_len = 0;
3337 total_len += data_len;
3338 e = kzalloc(total_len, GFP_ATOMIC);
3339 if (!e)
3340 return -ENOMEM;
3341
3342 e->etype = event;
3343 memcpy(&e->emsg, msg, sizeof(struct brcmf_event_msg));
3344 if (data)
3345 memcpy(&e->edata, data, data_len);
3346
3347 spin_lock_irqsave(&cfg_priv->evt_q_lock, flags);
3348 list_add_tail(&e->evt_q_list, &cfg_priv->evt_q_list);
3349 spin_unlock_irqrestore(&cfg_priv->evt_q_lock, flags);
3350
3351 return err;
3352 }
3353
3354 static void brcmf_put_event(struct brcmf_cfg80211_event_q *e)
3355 {
3356 kfree(e);
3357 }
3358
3359 static void brcmf_cfg80211_event_handler(struct work_struct *work)
3360 {
3361 struct brcmf_cfg80211_priv *cfg_priv =
3362 container_of(work, struct brcmf_cfg80211_priv,
3363 event_work);
3364 struct brcmf_cfg80211_event_q *e;
3365
3366 e = brcmf_deq_event(cfg_priv);
3367 if (unlikely(!e)) {
3368 WL_ERR("event queue empty...\n");
3369 return;
3370 }
3371
3372 do {
3373 WL_INFO("event type (%d)\n", e->etype);
3374 if (cfg_priv->el.handler[e->etype])
3375 cfg_priv->el.handler[e->etype](cfg_priv,
3376 cfg_to_ndev(cfg_priv),
3377 &e->emsg, e->edata);
3378 else
3379 WL_INFO("Unknown Event (%d): ignoring\n", e->etype);
3380 brcmf_put_event(e);
3381 } while ((e = brcmf_deq_event(cfg_priv)));
3382
3383 }
3384
3385 static void brcmf_init_eq(struct brcmf_cfg80211_priv *cfg_priv)
3386 {
3387 spin_lock_init(&cfg_priv->evt_q_lock);
3388 INIT_LIST_HEAD(&cfg_priv->evt_q_list);
3389 }
3390
3391 static void brcmf_flush_eq(struct brcmf_cfg80211_priv *cfg_priv)
3392 {
3393 struct brcmf_cfg80211_event_q *e;
3394
3395 spin_lock_irq(&cfg_priv->evt_q_lock);
3396 while (!list_empty(&cfg_priv->evt_q_list)) {
3397 e = list_first_entry(&cfg_priv->evt_q_list,
3398 struct brcmf_cfg80211_event_q, evt_q_list);
3399 list_del(&e->evt_q_list);
3400 kfree(e);
3401 }
3402 spin_unlock_irq(&cfg_priv->evt_q_lock);
3403 }
3404
3405 static s32 wl_init_priv(struct brcmf_cfg80211_priv *cfg_priv)
3406 {
3407 s32 err = 0;
3408
3409 cfg_priv->scan_request = NULL;
3410 cfg_priv->pwr_save = true;
3411 cfg_priv->iscan_on = true; /* iscan on & off switch.
3412 we enable iscan per default */
3413 cfg_priv->roam_on = true; /* roam on & off switch.
3414 we enable roam per default */
3415
3416 cfg_priv->iscan_kickstart = false;
3417 cfg_priv->active_scan = true; /* we do active scan for
3418 specific scan per default */
3419 cfg_priv->dongle_up = false; /* dongle is not up yet */
3420 brcmf_init_eq(cfg_priv);
3421 err = brcmf_init_priv_mem(cfg_priv);
3422 if (err)
3423 return err;
3424 INIT_WORK(&cfg_priv->event_work, brcmf_cfg80211_event_handler);
3425 brcmf_init_eloop_handler(&cfg_priv->el);
3426 mutex_init(&cfg_priv->usr_sync);
3427 err = brcmf_init_iscan(cfg_priv);
3428 if (err)
3429 return err;
3430 brcmf_init_conf(cfg_priv->conf);
3431 brcmf_init_prof(cfg_priv->profile);
3432 brcmf_link_down(cfg_priv);
3433
3434 return err;
3435 }
3436
3437 static void wl_deinit_priv(struct brcmf_cfg80211_priv *cfg_priv)
3438 {
3439 cancel_work_sync(&cfg_priv->event_work);
3440 cfg_priv->dongle_up = false; /* dongle down */
3441 brcmf_flush_eq(cfg_priv);
3442 brcmf_link_down(cfg_priv);
3443 brcmf_term_iscan(cfg_priv);
3444 brcmf_deinit_priv_mem(cfg_priv);
3445 }
3446
3447 struct brcmf_cfg80211_dev *brcmf_cfg80211_attach(struct net_device *ndev,
3448 struct device *busdev,
3449 void *data)
3450 {
3451 struct wireless_dev *wdev;
3452 struct brcmf_cfg80211_priv *cfg_priv;
3453 struct brcmf_cfg80211_iface *ci;
3454 struct brcmf_cfg80211_dev *cfg_dev;
3455 s32 err = 0;
3456
3457 if (!ndev) {
3458 WL_ERR("ndev is invalid\n");
3459 return NULL;
3460 }
3461 cfg_dev = kzalloc(sizeof(struct brcmf_cfg80211_dev), GFP_KERNEL);
3462 if (!cfg_dev)
3463 return NULL;
3464
3465 wdev = brcmf_alloc_wdev(sizeof(struct brcmf_cfg80211_iface), busdev);
3466 if (IS_ERR(wdev)) {
3467 kfree(cfg_dev);
3468 return NULL;
3469 }
3470
3471 wdev->iftype = brcmf_mode_to_nl80211_iftype(WL_MODE_BSS);
3472 cfg_priv = wdev_to_cfg(wdev);
3473 cfg_priv->wdev = wdev;
3474 cfg_priv->pub = data;
3475 ci = (struct brcmf_cfg80211_iface *)&cfg_priv->ci;
3476 ci->cfg_priv = cfg_priv;
3477 ndev->ieee80211_ptr = wdev;
3478 SET_NETDEV_DEV(ndev, wiphy_dev(wdev->wiphy));
3479 wdev->netdev = ndev;
3480 err = wl_init_priv(cfg_priv);
3481 if (err) {
3482 WL_ERR("Failed to init iwm_priv (%d)\n", err);
3483 goto cfg80211_attach_out;
3484 }
3485 brcmf_set_drvdata(cfg_dev, ci);
3486
3487 return cfg_dev;
3488
3489 cfg80211_attach_out:
3490 brcmf_free_wdev(cfg_priv);
3491 kfree(cfg_dev);
3492 return NULL;
3493 }
3494
3495 void brcmf_cfg80211_detach(struct brcmf_cfg80211_dev *cfg_dev)
3496 {
3497 struct brcmf_cfg80211_priv *cfg_priv;
3498
3499 cfg_priv = brcmf_priv_get(cfg_dev);
3500
3501 wl_deinit_priv(cfg_priv);
3502 brcmf_free_wdev(cfg_priv);
3503 brcmf_set_drvdata(cfg_dev, NULL);
3504 kfree(cfg_dev);
3505 }
3506
3507 void
3508 brcmf_cfg80211_event(struct net_device *ndev,
3509 const struct brcmf_event_msg *e, void *data)
3510 {
3511 u32 event_type = be32_to_cpu(e->event_type);
3512 struct brcmf_cfg80211_priv *cfg_priv = ndev_to_cfg(ndev);
3513
3514 if (!brcmf_enq_event(cfg_priv, event_type, e, data))
3515 schedule_work(&cfg_priv->event_work);
3516 }
3517
3518 static s32 brcmf_dongle_mode(struct net_device *ndev, s32 iftype)
3519 {
3520 s32 infra = 0;
3521 s32 err = 0;
3522
3523 switch (iftype) {
3524 case NL80211_IFTYPE_MONITOR:
3525 case NL80211_IFTYPE_WDS:
3526 WL_ERR("type (%d) : currently we do not support this mode\n",
3527 iftype);
3528 err = -EINVAL;
3529 return err;
3530 case NL80211_IFTYPE_ADHOC:
3531 infra = 0;
3532 break;
3533 case NL80211_IFTYPE_STATION:
3534 infra = 1;
3535 break;
3536 default:
3537 err = -EINVAL;
3538 WL_ERR("invalid type (%d)\n", iftype);
3539 return err;
3540 }
3541 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_INFRA, &infra);
3542 if (err) {
3543 WL_ERR("WLC_SET_INFRA error (%d)\n", err);
3544 return err;
3545 }
3546
3547 return 0;
3548 }
3549
3550 static s32 brcmf_dongle_eventmsg(struct net_device *ndev)
3551 {
3552 /* Room for "event_msgs" + '\0' + bitvec */
3553 s8 iovbuf[BRCMF_EVENTING_MASK_LEN + 12];
3554 s8 eventmask[BRCMF_EVENTING_MASK_LEN];
3555 s32 err = 0;
3556
3557 WL_TRACE("Enter\n");
3558
3559 /* Setup event_msgs */
3560 brcmf_c_mkiovar("event_msgs", eventmask, BRCMF_EVENTING_MASK_LEN,
3561 iovbuf, sizeof(iovbuf));
3562 err = brcmf_exec_dcmd(ndev, BRCMF_C_GET_VAR, iovbuf, sizeof(iovbuf));
3563 if (err) {
3564 WL_ERR("Get event_msgs error (%d)\n", err);
3565 goto dongle_eventmsg_out;
3566 }
3567 memcpy(eventmask, iovbuf, BRCMF_EVENTING_MASK_LEN);
3568
3569 setbit(eventmask, BRCMF_E_SET_SSID);
3570 setbit(eventmask, BRCMF_E_ROAM);
3571 setbit(eventmask, BRCMF_E_PRUNE);
3572 setbit(eventmask, BRCMF_E_AUTH);
3573 setbit(eventmask, BRCMF_E_REASSOC);
3574 setbit(eventmask, BRCMF_E_REASSOC_IND);
3575 setbit(eventmask, BRCMF_E_DEAUTH_IND);
3576 setbit(eventmask, BRCMF_E_DISASSOC_IND);
3577 setbit(eventmask, BRCMF_E_DISASSOC);
3578 setbit(eventmask, BRCMF_E_JOIN);
3579 setbit(eventmask, BRCMF_E_ASSOC_IND);
3580 setbit(eventmask, BRCMF_E_PSK_SUP);
3581 setbit(eventmask, BRCMF_E_LINK);
3582 setbit(eventmask, BRCMF_E_NDIS_LINK);
3583 setbit(eventmask, BRCMF_E_MIC_ERROR);
3584 setbit(eventmask, BRCMF_E_PMKID_CACHE);
3585 setbit(eventmask, BRCMF_E_TXFAIL);
3586 setbit(eventmask, BRCMF_E_JOIN_START);
3587 setbit(eventmask, BRCMF_E_SCAN_COMPLETE);
3588
3589 brcmf_c_mkiovar("event_msgs", eventmask, BRCMF_EVENTING_MASK_LEN,
3590 iovbuf, sizeof(iovbuf));
3591 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, iovbuf, sizeof(iovbuf));
3592 if (err) {
3593 WL_ERR("Set event_msgs error (%d)\n", err);
3594 goto dongle_eventmsg_out;
3595 }
3596
3597 dongle_eventmsg_out:
3598 WL_TRACE("Exit\n");
3599 return err;
3600 }
3601
3602 static s32
3603 brcmf_dongle_roam(struct net_device *ndev, u32 roamvar, u32 bcn_timeout)
3604 {
3605 s8 iovbuf[32];
3606 s32 err = 0;
3607 __le32 roamtrigger[2];
3608 __le32 roam_delta[2];
3609 __le32 bcn_to_le;
3610 __le32 roamvar_le;
3611
3612 /*
3613 * Setup timeout if Beacons are lost and roam is
3614 * off to report link down
3615 */
3616 if (roamvar) {
3617 bcn_to_le = cpu_to_le32(bcn_timeout);
3618 brcmf_c_mkiovar("bcn_timeout", (char *)&bcn_to_le,
3619 sizeof(bcn_to_le), iovbuf, sizeof(iovbuf));
3620 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR,
3621 iovbuf, sizeof(iovbuf));
3622 if (err) {
3623 WL_ERR("bcn_timeout error (%d)\n", err);
3624 goto dongle_rom_out;
3625 }
3626 }
3627
3628 /*
3629 * Enable/Disable built-in roaming to allow supplicant
3630 * to take care of roaming
3631 */
3632 WL_INFO("Internal Roaming = %s\n", roamvar ? "Off" : "On");
3633 roamvar_le = cpu_to_le32(roamvar);
3634 brcmf_c_mkiovar("roam_off", (char *)&roamvar_le,
3635 sizeof(roamvar_le), iovbuf, sizeof(iovbuf));
3636 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_VAR, iovbuf, sizeof(iovbuf));
3637 if (err) {
3638 WL_ERR("roam_off error (%d)\n", err);
3639 goto dongle_rom_out;
3640 }
3641
3642 roamtrigger[0] = cpu_to_le32(WL_ROAM_TRIGGER_LEVEL);
3643 roamtrigger[1] = cpu_to_le32(BRCM_BAND_ALL);
3644 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_ROAM_TRIGGER,
3645 (void *)roamtrigger, sizeof(roamtrigger));
3646 if (err) {
3647 WL_ERR("WLC_SET_ROAM_TRIGGER error (%d)\n", err);
3648 goto dongle_rom_out;
3649 }
3650
3651 roam_delta[0] = cpu_to_le32(WL_ROAM_DELTA);
3652 roam_delta[1] = cpu_to_le32(BRCM_BAND_ALL);
3653 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_ROAM_DELTA,
3654 (void *)roam_delta, sizeof(roam_delta));
3655 if (err) {
3656 WL_ERR("WLC_SET_ROAM_DELTA error (%d)\n", err);
3657 goto dongle_rom_out;
3658 }
3659
3660 dongle_rom_out:
3661 return err;
3662 }
3663
3664 static s32
3665 brcmf_dongle_scantime(struct net_device *ndev, s32 scan_assoc_time,
3666 s32 scan_unassoc_time, s32 scan_passive_time)
3667 {
3668 s32 err = 0;
3669 __le32 scan_assoc_tm_le = cpu_to_le32(scan_assoc_time);
3670 __le32 scan_unassoc_tm_le = cpu_to_le32(scan_unassoc_time);
3671 __le32 scan_passive_tm_le = cpu_to_le32(scan_passive_time);
3672
3673 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SCAN_CHANNEL_TIME,
3674 &scan_assoc_tm_le, sizeof(scan_assoc_tm_le));
3675 if (err) {
3676 if (err == -EOPNOTSUPP)
3677 WL_INFO("Scan assoc time is not supported\n");
3678 else
3679 WL_ERR("Scan assoc time error (%d)\n", err);
3680 goto dongle_scantime_out;
3681 }
3682 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SCAN_UNASSOC_TIME,
3683 &scan_unassoc_tm_le, sizeof(scan_unassoc_tm_le));
3684 if (err) {
3685 if (err == -EOPNOTSUPP)
3686 WL_INFO("Scan unassoc time is not supported\n");
3687 else
3688 WL_ERR("Scan unassoc time error (%d)\n", err);
3689 goto dongle_scantime_out;
3690 }
3691
3692 err = brcmf_exec_dcmd(ndev, BRCMF_C_SET_SCAN_PASSIVE_TIME,
3693 &scan_passive_tm_le, sizeof(scan_passive_tm_le));
3694 if (err) {
3695 if (err == -EOPNOTSUPP)
3696 WL_INFO("Scan passive time is not supported\n");
3697 else
3698 WL_ERR("Scan passive time error (%d)\n", err);
3699 goto dongle_scantime_out;
3700 }
3701
3702 dongle_scantime_out:
3703 return err;
3704 }
3705
3706 static s32 wl_update_wiphybands(struct brcmf_cfg80211_priv *cfg_priv)
3707 {
3708 struct wiphy *wiphy;
3709 s32 phy_list;
3710 s8 phy;
3711 s32 err = 0;
3712
3713 err = brcmf_exec_dcmd(cfg_to_ndev(cfg_priv), BRCM_GET_PHYLIST,
3714 &phy_list, sizeof(phy_list));
3715 if (err) {
3716 WL_ERR("error (%d)\n", err);
3717 return err;
3718 }
3719
3720 phy = ((char *)&phy_list)[1];
3721 WL_INFO("%c phy\n", phy);
3722 if (phy == 'n' || phy == 'a') {
3723 wiphy = cfg_to_wiphy(cfg_priv);
3724 wiphy->bands[IEEE80211_BAND_5GHZ] = &__wl_band_5ghz_n;
3725 }
3726
3727 return err;
3728 }
3729
3730 static s32 brcmf_dongle_probecap(struct brcmf_cfg80211_priv *cfg_priv)
3731 {
3732 return wl_update_wiphybands(cfg_priv);
3733 }
3734
3735 static s32 brcmf_config_dongle(struct brcmf_cfg80211_priv *cfg_priv)
3736 {
3737 struct net_device *ndev;
3738 struct wireless_dev *wdev;
3739 s32 power_mode;
3740 s32 err = 0;
3741
3742 if (cfg_priv->dongle_up)
3743 return err;
3744
3745 ndev = cfg_to_ndev(cfg_priv);
3746 wdev = ndev->ieee80211_ptr;
3747
3748 brcmf_dongle_scantime(ndev, WL_SCAN_CHANNEL_TIME,
3749 WL_SCAN_UNASSOC_TIME, WL_SCAN_PASSIVE_TIME);
3750
3751 err = brcmf_dongle_eventmsg(ndev);
3752 if (err)
3753 goto default_conf_out;
3754
3755 power_mode = cfg_priv->pwr_save ? PM_FAST : PM_OFF;
3756 err = brcmf_exec_dcmd_u32(ndev, BRCMF_C_SET_PM, &power_mode);
3757 if (err)
3758 goto default_conf_out;
3759 WL_INFO("power save set to %s\n",
3760 (power_mode ? "enabled" : "disabled"));
3761
3762 err = brcmf_dongle_roam(ndev, (cfg_priv->roam_on ? 0 : 1),
3763 WL_BEACON_TIMEOUT);
3764 if (err)
3765 goto default_conf_out;
3766 err = brcmf_dongle_mode(ndev, wdev->iftype);
3767 if (err && err != -EINPROGRESS)
3768 goto default_conf_out;
3769 err = brcmf_dongle_probecap(cfg_priv);
3770 if (err)
3771 goto default_conf_out;
3772
3773 /* -EINPROGRESS: Call commit handler */
3774
3775 default_conf_out:
3776
3777 cfg_priv->dongle_up = true;
3778
3779 return err;
3780
3781 }
3782
3783 static int brcmf_debugfs_add_netdev_params(struct brcmf_cfg80211_priv *cfg_priv)
3784 {
3785 char buf[10+IFNAMSIZ];
3786 struct dentry *fd;
3787 s32 err = 0;
3788
3789 sprintf(buf, "netdev:%s", cfg_to_ndev(cfg_priv)->name);
3790 cfg_priv->debugfsdir = debugfs_create_dir(buf,
3791 cfg_to_wiphy(cfg_priv)->debugfsdir);
3792
3793 fd = debugfs_create_u16("beacon_int", S_IRUGO, cfg_priv->debugfsdir,
3794 (u16 *)&cfg_priv->profile->beacon_interval);
3795 if (!fd) {
3796 err = -ENOMEM;
3797 goto err_out;
3798 }
3799
3800 fd = debugfs_create_u8("dtim_period", S_IRUGO, cfg_priv->debugfsdir,
3801 (u8 *)&cfg_priv->profile->dtim_period);
3802 if (!fd) {
3803 err = -ENOMEM;
3804 goto err_out;
3805 }
3806
3807 err_out:
3808 return err;
3809 }
3810
3811 static void brcmf_debugfs_remove_netdev(struct brcmf_cfg80211_priv *cfg_priv)
3812 {
3813 debugfs_remove_recursive(cfg_priv->debugfsdir);
3814 cfg_priv->debugfsdir = NULL;
3815 }
3816
3817 static s32 __brcmf_cfg80211_up(struct brcmf_cfg80211_priv *cfg_priv)
3818 {
3819 s32 err = 0;
3820
3821 set_bit(WL_STATUS_READY, &cfg_priv->status);
3822
3823 brcmf_debugfs_add_netdev_params(cfg_priv);
3824
3825 err = brcmf_config_dongle(cfg_priv);
3826 if (err)
3827 return err;
3828
3829 brcmf_invoke_iscan(cfg_priv);
3830
3831 return err;
3832 }
3833
3834 static s32 __brcmf_cfg80211_down(struct brcmf_cfg80211_priv *cfg_priv)
3835 {
3836 /*
3837 * While going down, if associated with AP disassociate
3838 * from AP to save power
3839 */
3840 if ((test_bit(WL_STATUS_CONNECTED, &cfg_priv->status) ||
3841 test_bit(WL_STATUS_CONNECTING, &cfg_priv->status)) &&
3842 test_bit(WL_STATUS_READY, &cfg_priv->status)) {
3843 WL_INFO("Disassociating from AP");
3844 brcmf_link_down(cfg_priv);
3845
3846 /* Make sure WPA_Supplicant receives all the event
3847 generated due to DISASSOC call to the fw to keep
3848 the state fw and WPA_Supplicant state consistent
3849 */
3850 brcmf_delay(500);
3851 }
3852
3853 set_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status);
3854 brcmf_term_iscan(cfg_priv);
3855 if (cfg_priv->scan_request) {
3856 cfg80211_scan_done(cfg_priv->scan_request, true);
3857 /* May need to perform this to cover rmmod */
3858 /* wl_set_mpc(cfg_to_ndev(wl), 1); */
3859 cfg_priv->scan_request = NULL;
3860 }
3861 clear_bit(WL_STATUS_READY, &cfg_priv->status);
3862 clear_bit(WL_STATUS_SCANNING, &cfg_priv->status);
3863 clear_bit(WL_STATUS_SCAN_ABORTING, &cfg_priv->status);
3864
3865 brcmf_debugfs_remove_netdev(cfg_priv);
3866
3867 return 0;
3868 }
3869
3870 s32 brcmf_cfg80211_up(struct brcmf_cfg80211_dev *cfg_dev)
3871 {
3872 struct brcmf_cfg80211_priv *cfg_priv;
3873 s32 err = 0;
3874
3875 cfg_priv = brcmf_priv_get(cfg_dev);
3876 mutex_lock(&cfg_priv->usr_sync);
3877 err = __brcmf_cfg80211_up(cfg_priv);
3878 mutex_unlock(&cfg_priv->usr_sync);
3879
3880 return err;
3881 }
3882
3883 s32 brcmf_cfg80211_down(struct brcmf_cfg80211_dev *cfg_dev)
3884 {
3885 struct brcmf_cfg80211_priv *cfg_priv;
3886 s32 err = 0;
3887
3888 cfg_priv = brcmf_priv_get(cfg_dev);
3889 mutex_lock(&cfg_priv->usr_sync);
3890 err = __brcmf_cfg80211_down(cfg_priv);
3891 mutex_unlock(&cfg_priv->usr_sync);
3892
3893 return err;
3894 }
3895
3896 static __used s32 brcmf_add_ie(struct brcmf_cfg80211_priv *cfg_priv,
3897 u8 t, u8 l, u8 *v)
3898 {
3899 struct brcmf_cfg80211_ie *ie = &cfg_priv->ie;
3900 s32 err = 0;
3901
3902 if (ie->offset + l + 2 > WL_TLV_INFO_MAX) {
3903 WL_ERR("ei crosses buffer boundary\n");
3904 return -ENOSPC;
3905 }
3906 ie->buf[ie->offset] = t;
3907 ie->buf[ie->offset + 1] = l;
3908 memcpy(&ie->buf[ie->offset + 2], v, l);
3909 ie->offset += l + 2;
3910
3911 return err;
3912 }
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