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Merge tag 'stable/for-linus-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git...
[deliverable/linux.git] / drivers / net / wireless / ath / ath6kl / cfg80211.c
1 /*
2 * Copyright (c) 2004-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #include <linux/moduleparam.h>
19 #include <linux/inetdevice.h>
20 #include <linux/export.h>
21
22 #include "core.h"
23 #include "cfg80211.h"
24 #include "debug.h"
25 #include "hif-ops.h"
26 #include "testmode.h"
27
28 #define RATETAB_ENT(_rate, _rateid, _flags) { \
29 .bitrate = (_rate), \
30 .flags = (_flags), \
31 .hw_value = (_rateid), \
32 }
33
34 #define CHAN2G(_channel, _freq, _flags) { \
35 .band = IEEE80211_BAND_2GHZ, \
36 .hw_value = (_channel), \
37 .center_freq = (_freq), \
38 .flags = (_flags), \
39 .max_antenna_gain = 0, \
40 .max_power = 30, \
41 }
42
43 #define CHAN5G(_channel, _flags) { \
44 .band = IEEE80211_BAND_5GHZ, \
45 .hw_value = (_channel), \
46 .center_freq = 5000 + (5 * (_channel)), \
47 .flags = (_flags), \
48 .max_antenna_gain = 0, \
49 .max_power = 30, \
50 }
51
52 static struct ieee80211_rate ath6kl_rates[] = {
53 RATETAB_ENT(10, 0x1, 0),
54 RATETAB_ENT(20, 0x2, 0),
55 RATETAB_ENT(55, 0x4, 0),
56 RATETAB_ENT(110, 0x8, 0),
57 RATETAB_ENT(60, 0x10, 0),
58 RATETAB_ENT(90, 0x20, 0),
59 RATETAB_ENT(120, 0x40, 0),
60 RATETAB_ENT(180, 0x80, 0),
61 RATETAB_ENT(240, 0x100, 0),
62 RATETAB_ENT(360, 0x200, 0),
63 RATETAB_ENT(480, 0x400, 0),
64 RATETAB_ENT(540, 0x800, 0),
65 };
66
67 #define ath6kl_a_rates (ath6kl_rates + 4)
68 #define ath6kl_a_rates_size 8
69 #define ath6kl_g_rates (ath6kl_rates + 0)
70 #define ath6kl_g_rates_size 12
71
72 #define ath6kl_g_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \
73 IEEE80211_HT_CAP_SGI_20 | \
74 IEEE80211_HT_CAP_SGI_40)
75
76 static struct ieee80211_channel ath6kl_2ghz_channels[] = {
77 CHAN2G(1, 2412, 0),
78 CHAN2G(2, 2417, 0),
79 CHAN2G(3, 2422, 0),
80 CHAN2G(4, 2427, 0),
81 CHAN2G(5, 2432, 0),
82 CHAN2G(6, 2437, 0),
83 CHAN2G(7, 2442, 0),
84 CHAN2G(8, 2447, 0),
85 CHAN2G(9, 2452, 0),
86 CHAN2G(10, 2457, 0),
87 CHAN2G(11, 2462, 0),
88 CHAN2G(12, 2467, 0),
89 CHAN2G(13, 2472, 0),
90 CHAN2G(14, 2484, 0),
91 };
92
93 static struct ieee80211_channel ath6kl_5ghz_a_channels[] = {
94 CHAN5G(34, 0), CHAN5G(36, 0),
95 CHAN5G(38, 0), CHAN5G(40, 0),
96 CHAN5G(42, 0), CHAN5G(44, 0),
97 CHAN5G(46, 0), CHAN5G(48, 0),
98 CHAN5G(52, 0), CHAN5G(56, 0),
99 CHAN5G(60, 0), CHAN5G(64, 0),
100 CHAN5G(100, 0), CHAN5G(104, 0),
101 CHAN5G(108, 0), CHAN5G(112, 0),
102 CHAN5G(116, 0), CHAN5G(120, 0),
103 CHAN5G(124, 0), CHAN5G(128, 0),
104 CHAN5G(132, 0), CHAN5G(136, 0),
105 CHAN5G(140, 0), CHAN5G(149, 0),
106 CHAN5G(153, 0), CHAN5G(157, 0),
107 CHAN5G(161, 0), CHAN5G(165, 0),
108 CHAN5G(184, 0), CHAN5G(188, 0),
109 CHAN5G(192, 0), CHAN5G(196, 0),
110 CHAN5G(200, 0), CHAN5G(204, 0),
111 CHAN5G(208, 0), CHAN5G(212, 0),
112 CHAN5G(216, 0),
113 };
114
115 static struct ieee80211_supported_band ath6kl_band_2ghz = {
116 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels),
117 .channels = ath6kl_2ghz_channels,
118 .n_bitrates = ath6kl_g_rates_size,
119 .bitrates = ath6kl_g_rates,
120 .ht_cap.cap = ath6kl_g_htcap,
121 .ht_cap.ht_supported = true,
122 };
123
124 static struct ieee80211_supported_band ath6kl_band_5ghz = {
125 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels),
126 .channels = ath6kl_5ghz_a_channels,
127 .n_bitrates = ath6kl_a_rates_size,
128 .bitrates = ath6kl_a_rates,
129 .ht_cap.cap = ath6kl_g_htcap,
130 .ht_cap.ht_supported = true,
131 };
132
133 #define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */
134
135 /* returns true if scheduled scan was stopped */
136 static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif)
137 {
138 struct ath6kl *ar = vif->ar;
139
140 if (ar->state != ATH6KL_STATE_SCHED_SCAN)
141 return false;
142
143 del_timer_sync(&vif->sched_scan_timer);
144
145 ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
146 ATH6KL_HOST_MODE_AWAKE);
147
148 ar->state = ATH6KL_STATE_ON;
149
150 return true;
151 }
152
153 static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif)
154 {
155 struct ath6kl *ar = vif->ar;
156 bool stopped;
157
158 stopped = __ath6kl_cfg80211_sscan_stop(vif);
159
160 if (!stopped)
161 return;
162
163 cfg80211_sched_scan_stopped(ar->wiphy);
164 }
165
166 static int ath6kl_set_wpa_version(struct ath6kl_vif *vif,
167 enum nl80211_wpa_versions wpa_version)
168 {
169 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version);
170
171 if (!wpa_version) {
172 vif->auth_mode = NONE_AUTH;
173 } else if (wpa_version & NL80211_WPA_VERSION_2) {
174 vif->auth_mode = WPA2_AUTH;
175 } else if (wpa_version & NL80211_WPA_VERSION_1) {
176 vif->auth_mode = WPA_AUTH;
177 } else {
178 ath6kl_err("%s: %u not supported\n", __func__, wpa_version);
179 return -ENOTSUPP;
180 }
181
182 return 0;
183 }
184
185 static int ath6kl_set_auth_type(struct ath6kl_vif *vif,
186 enum nl80211_auth_type auth_type)
187 {
188 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type);
189
190 switch (auth_type) {
191 case NL80211_AUTHTYPE_OPEN_SYSTEM:
192 vif->dot11_auth_mode = OPEN_AUTH;
193 break;
194 case NL80211_AUTHTYPE_SHARED_KEY:
195 vif->dot11_auth_mode = SHARED_AUTH;
196 break;
197 case NL80211_AUTHTYPE_NETWORK_EAP:
198 vif->dot11_auth_mode = LEAP_AUTH;
199 break;
200
201 case NL80211_AUTHTYPE_AUTOMATIC:
202 vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH;
203 break;
204
205 default:
206 ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type);
207 return -ENOTSUPP;
208 }
209
210 return 0;
211 }
212
213 static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast)
214 {
215 u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto;
216 u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len :
217 &vif->grp_crypto_len;
218
219 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n",
220 __func__, cipher, ucast);
221
222 switch (cipher) {
223 case 0:
224 /* our own hack to use value 0 as no crypto used */
225 *ar_cipher = NONE_CRYPT;
226 *ar_cipher_len = 0;
227 break;
228 case WLAN_CIPHER_SUITE_WEP40:
229 *ar_cipher = WEP_CRYPT;
230 *ar_cipher_len = 5;
231 break;
232 case WLAN_CIPHER_SUITE_WEP104:
233 *ar_cipher = WEP_CRYPT;
234 *ar_cipher_len = 13;
235 break;
236 case WLAN_CIPHER_SUITE_TKIP:
237 *ar_cipher = TKIP_CRYPT;
238 *ar_cipher_len = 0;
239 break;
240 case WLAN_CIPHER_SUITE_CCMP:
241 *ar_cipher = AES_CRYPT;
242 *ar_cipher_len = 0;
243 break;
244 case WLAN_CIPHER_SUITE_SMS4:
245 *ar_cipher = WAPI_CRYPT;
246 *ar_cipher_len = 0;
247 break;
248 default:
249 ath6kl_err("cipher 0x%x not supported\n", cipher);
250 return -ENOTSUPP;
251 }
252
253 return 0;
254 }
255
256 static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt)
257 {
258 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt);
259
260 if (key_mgmt == WLAN_AKM_SUITE_PSK) {
261 if (vif->auth_mode == WPA_AUTH)
262 vif->auth_mode = WPA_PSK_AUTH;
263 else if (vif->auth_mode == WPA2_AUTH)
264 vif->auth_mode = WPA2_PSK_AUTH;
265 } else if (key_mgmt == 0x00409600) {
266 if (vif->auth_mode == WPA_AUTH)
267 vif->auth_mode = WPA_AUTH_CCKM;
268 else if (vif->auth_mode == WPA2_AUTH)
269 vif->auth_mode = WPA2_AUTH_CCKM;
270 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) {
271 vif->auth_mode = NONE_AUTH;
272 }
273 }
274
275 static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif)
276 {
277 struct ath6kl *ar = vif->ar;
278
279 if (!test_bit(WMI_READY, &ar->flag)) {
280 ath6kl_err("wmi is not ready\n");
281 return false;
282 }
283
284 if (!test_bit(WLAN_ENABLED, &vif->flags)) {
285 ath6kl_err("wlan disabled\n");
286 return false;
287 }
288
289 return true;
290 }
291
292 static bool ath6kl_is_wpa_ie(const u8 *pos)
293 {
294 return pos[0] == WLAN_EID_WPA && pos[1] >= 4 &&
295 pos[2] == 0x00 && pos[3] == 0x50 &&
296 pos[4] == 0xf2 && pos[5] == 0x01;
297 }
298
299 static bool ath6kl_is_rsn_ie(const u8 *pos)
300 {
301 return pos[0] == WLAN_EID_RSN;
302 }
303
304 static bool ath6kl_is_wps_ie(const u8 *pos)
305 {
306 return (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
307 pos[1] >= 4 &&
308 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 &&
309 pos[5] == 0x04);
310 }
311
312 static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies,
313 size_t ies_len)
314 {
315 struct ath6kl *ar = vif->ar;
316 const u8 *pos;
317 u8 *buf = NULL;
318 size_t len = 0;
319 int ret;
320
321 /*
322 * Clear previously set flag
323 */
324
325 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
326
327 /*
328 * Filter out RSN/WPA IE(s)
329 */
330
331 if (ies && ies_len) {
332 buf = kmalloc(ies_len, GFP_KERNEL);
333 if (buf == NULL)
334 return -ENOMEM;
335 pos = ies;
336
337 while (pos + 1 < ies + ies_len) {
338 if (pos + 2 + pos[1] > ies + ies_len)
339 break;
340 if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) {
341 memcpy(buf + len, pos, 2 + pos[1]);
342 len += 2 + pos[1];
343 }
344
345 if (ath6kl_is_wps_ie(pos))
346 ar->connect_ctrl_flags |= CONNECT_WPS_FLAG;
347
348 pos += 2 + pos[1];
349 }
350 }
351
352 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
353 WMI_FRAME_ASSOC_REQ, buf, len);
354 kfree(buf);
355 return ret;
356 }
357
358 static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type)
359 {
360 switch (type) {
361 case NL80211_IFTYPE_STATION:
362 *nw_type = INFRA_NETWORK;
363 break;
364 case NL80211_IFTYPE_ADHOC:
365 *nw_type = ADHOC_NETWORK;
366 break;
367 case NL80211_IFTYPE_AP:
368 *nw_type = AP_NETWORK;
369 break;
370 case NL80211_IFTYPE_P2P_CLIENT:
371 *nw_type = INFRA_NETWORK;
372 break;
373 case NL80211_IFTYPE_P2P_GO:
374 *nw_type = AP_NETWORK;
375 break;
376 default:
377 ath6kl_err("invalid interface type %u\n", type);
378 return -ENOTSUPP;
379 }
380
381 return 0;
382 }
383
384 static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type,
385 u8 *if_idx, u8 *nw_type)
386 {
387 int i;
388
389 if (ath6kl_nliftype_to_drv_iftype(type, nw_type))
390 return false;
391
392 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) &&
393 ar->num_vif))
394 return false;
395
396 if (type == NL80211_IFTYPE_STATION ||
397 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) {
398 for (i = 0; i < ar->vif_max; i++) {
399 if ((ar->avail_idx_map >> i) & BIT(0)) {
400 *if_idx = i;
401 return true;
402 }
403 }
404 }
405
406 if (type == NL80211_IFTYPE_P2P_CLIENT ||
407 type == NL80211_IFTYPE_P2P_GO) {
408 for (i = ar->max_norm_iface; i < ar->vif_max; i++) {
409 if ((ar->avail_idx_map >> i) & BIT(0)) {
410 *if_idx = i;
411 return true;
412 }
413 }
414 }
415
416 return false;
417 }
418
419 static bool ath6kl_is_tx_pending(struct ath6kl *ar)
420 {
421 return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0;
422 }
423
424
425 static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
426 struct cfg80211_connect_params *sme)
427 {
428 struct ath6kl *ar = ath6kl_priv(dev);
429 struct ath6kl_vif *vif = netdev_priv(dev);
430 int status;
431 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE;
432 u16 interval;
433
434 ath6kl_cfg80211_sscan_disable(vif);
435
436 vif->sme_state = SME_CONNECTING;
437
438 if (!ath6kl_cfg80211_ready(vif))
439 return -EIO;
440
441 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
442 ath6kl_err("destroy in progress\n");
443 return -EBUSY;
444 }
445
446 if (test_bit(SKIP_SCAN, &ar->flag) &&
447 ((sme->channel && sme->channel->center_freq == 0) ||
448 (sme->bssid && is_zero_ether_addr(sme->bssid)))) {
449 ath6kl_err("SkipScan: channel or bssid invalid\n");
450 return -EINVAL;
451 }
452
453 if (down_interruptible(&ar->sem)) {
454 ath6kl_err("busy, couldn't get access\n");
455 return -ERESTARTSYS;
456 }
457
458 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
459 ath6kl_err("busy, destroy in progress\n");
460 up(&ar->sem);
461 return -EBUSY;
462 }
463
464 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) {
465 /*
466 * sleep until the command queue drains
467 */
468 wait_event_interruptible_timeout(ar->event_wq,
469 ath6kl_is_tx_pending(ar),
470 WMI_TIMEOUT);
471 if (signal_pending(current)) {
472 ath6kl_err("cmd queue drain timeout\n");
473 up(&ar->sem);
474 return -EINTR;
475 }
476 }
477
478 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len);
479 if (status) {
480 up(&ar->sem);
481 return status;
482 }
483
484 if (sme->ie == NULL || sme->ie_len == 0)
485 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
486
487 if (test_bit(CONNECTED, &vif->flags) &&
488 vif->ssid_len == sme->ssid_len &&
489 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
490 vif->reconnect_flag = true;
491 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx,
492 vif->req_bssid,
493 vif->ch_hint);
494
495 up(&ar->sem);
496 if (status) {
497 ath6kl_err("wmi_reconnect_cmd failed\n");
498 return -EIO;
499 }
500 return 0;
501 } else if (vif->ssid_len == sme->ssid_len &&
502 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
503 ath6kl_disconnect(vif);
504 }
505
506 memset(vif->ssid, 0, sizeof(vif->ssid));
507 vif->ssid_len = sme->ssid_len;
508 memcpy(vif->ssid, sme->ssid, sme->ssid_len);
509
510 if (sme->channel)
511 vif->ch_hint = sme->channel->center_freq;
512
513 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
514 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid))
515 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid));
516
517 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions);
518
519 status = ath6kl_set_auth_type(vif, sme->auth_type);
520 if (status) {
521 up(&ar->sem);
522 return status;
523 }
524
525 if (sme->crypto.n_ciphers_pairwise)
526 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true);
527 else
528 ath6kl_set_cipher(vif, 0, true);
529
530 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false);
531
532 if (sme->crypto.n_akm_suites)
533 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]);
534
535 if ((sme->key_len) &&
536 (vif->auth_mode == NONE_AUTH) &&
537 (vif->prwise_crypto == WEP_CRYPT)) {
538 struct ath6kl_key *key = NULL;
539
540 if (sme->key_idx > WMI_MAX_KEY_INDEX) {
541 ath6kl_err("key index %d out of bounds\n",
542 sme->key_idx);
543 up(&ar->sem);
544 return -ENOENT;
545 }
546
547 key = &vif->keys[sme->key_idx];
548 key->key_len = sme->key_len;
549 memcpy(key->key, sme->key, key->key_len);
550 key->cipher = vif->prwise_crypto;
551 vif->def_txkey_index = sme->key_idx;
552
553 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx,
554 vif->prwise_crypto,
555 GROUP_USAGE | TX_USAGE,
556 key->key_len,
557 NULL, 0,
558 key->key, KEY_OP_INIT_VAL, NULL,
559 NO_SYNC_WMIFLAG);
560 }
561
562 if (!ar->usr_bss_filter) {
563 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
564 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
565 ALL_BSS_FILTER, 0) != 0) {
566 ath6kl_err("couldn't set bss filtering\n");
567 up(&ar->sem);
568 return -EIO;
569 }
570 }
571
572 vif->nw_type = vif->next_mode;
573
574 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT)
575 nw_subtype = SUBTYPE_P2PCLIENT;
576
577 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
578 "%s: connect called with authmode %d dot11 auth %d"
579 " PW crypto %d PW crypto len %d GRP crypto %d"
580 " GRP crypto len %d channel hint %u\n",
581 __func__,
582 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
583 vif->prwise_crypto_len, vif->grp_crypto,
584 vif->grp_crypto_len, vif->ch_hint);
585
586 vif->reconnect_flag = 0;
587
588 if (vif->nw_type == INFRA_NETWORK) {
589 interval = max_t(u16, vif->listen_intvl_t,
590 ATH6KL_MAX_WOW_LISTEN_INTL);
591 status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
592 interval,
593 0);
594 if (status) {
595 ath6kl_err("couldn't set listen intervel\n");
596 up(&ar->sem);
597 return status;
598 }
599 }
600
601 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
602 vif->dot11_auth_mode, vif->auth_mode,
603 vif->prwise_crypto,
604 vif->prwise_crypto_len,
605 vif->grp_crypto, vif->grp_crypto_len,
606 vif->ssid_len, vif->ssid,
607 vif->req_bssid, vif->ch_hint,
608 ar->connect_ctrl_flags, nw_subtype);
609
610 up(&ar->sem);
611
612 if (status == -EINVAL) {
613 memset(vif->ssid, 0, sizeof(vif->ssid));
614 vif->ssid_len = 0;
615 ath6kl_err("invalid request\n");
616 return -ENOENT;
617 } else if (status) {
618 ath6kl_err("ath6kl_wmi_connect_cmd failed\n");
619 return -EIO;
620 }
621
622 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) &&
623 ((vif->auth_mode == WPA_PSK_AUTH) ||
624 (vif->auth_mode == WPA2_PSK_AUTH))) {
625 mod_timer(&vif->disconnect_timer,
626 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL));
627 }
628
629 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD;
630 set_bit(CONNECT_PEND, &vif->flags);
631
632 return 0;
633 }
634
635 static struct cfg80211_bss *
636 ath6kl_add_bss_if_needed(struct ath6kl_vif *vif,
637 enum network_type nw_type,
638 const u8 *bssid,
639 struct ieee80211_channel *chan,
640 const u8 *beacon_ie,
641 size_t beacon_ie_len)
642 {
643 struct ath6kl *ar = vif->ar;
644 struct cfg80211_bss *bss;
645 u16 cap_mask, cap_val;
646 u8 *ie;
647
648 if (nw_type & ADHOC_NETWORK) {
649 cap_mask = WLAN_CAPABILITY_IBSS;
650 cap_val = WLAN_CAPABILITY_IBSS;
651 } else {
652 cap_mask = WLAN_CAPABILITY_ESS;
653 cap_val = WLAN_CAPABILITY_ESS;
654 }
655
656 bss = cfg80211_get_bss(ar->wiphy, chan, bssid,
657 vif->ssid, vif->ssid_len,
658 cap_mask, cap_val);
659 if (bss == NULL) {
660 /*
661 * Since cfg80211 may not yet know about the BSS,
662 * generate a partial entry until the first BSS info
663 * event becomes available.
664 *
665 * Prepend SSID element since it is not included in the Beacon
666 * IEs from the target.
667 */
668 ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL);
669 if (ie == NULL)
670 return NULL;
671 ie[0] = WLAN_EID_SSID;
672 ie[1] = vif->ssid_len;
673 memcpy(ie + 2, vif->ssid, vif->ssid_len);
674 memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len);
675 bss = cfg80211_inform_bss(ar->wiphy, chan,
676 bssid, 0, cap_val, 100,
677 ie, 2 + vif->ssid_len + beacon_ie_len,
678 0, GFP_KERNEL);
679 if (bss)
680 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "added bss %pM to "
681 "cfg80211\n", bssid);
682 kfree(ie);
683 } else
684 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n");
685
686 return bss;
687 }
688
689 void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel,
690 u8 *bssid, u16 listen_intvl,
691 u16 beacon_intvl,
692 enum network_type nw_type,
693 u8 beacon_ie_len, u8 assoc_req_len,
694 u8 assoc_resp_len, u8 *assoc_info)
695 {
696 struct ieee80211_channel *chan;
697 struct ath6kl *ar = vif->ar;
698 struct cfg80211_bss *bss;
699
700 /* capinfo + listen interval */
701 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16);
702
703 /* capinfo + status code + associd */
704 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16);
705
706 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset;
707 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len +
708 assoc_resp_ie_offset;
709
710 assoc_req_len -= assoc_req_ie_offset;
711 assoc_resp_len -= assoc_resp_ie_offset;
712
713 /*
714 * Store Beacon interval here; DTIM period will be available only once
715 * a Beacon frame from the AP is seen.
716 */
717 vif->assoc_bss_beacon_int = beacon_intvl;
718 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags);
719
720 if (nw_type & ADHOC_NETWORK) {
721 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) {
722 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
723 "%s: ath6k not in ibss mode\n", __func__);
724 return;
725 }
726 }
727
728 if (nw_type & INFRA_NETWORK) {
729 if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
730 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
731 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
732 "%s: ath6k not in station mode\n", __func__);
733 return;
734 }
735 }
736
737 chan = ieee80211_get_channel(ar->wiphy, (int) channel);
738
739 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan,
740 assoc_info, beacon_ie_len);
741 if (!bss) {
742 ath6kl_err("could not add cfg80211 bss entry\n");
743 return;
744 }
745
746 if (nw_type & ADHOC_NETWORK) {
747 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n",
748 nw_type & ADHOC_CREATOR ? "creator" : "joiner");
749 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL);
750 cfg80211_put_bss(bss);
751 return;
752 }
753
754 if (vif->sme_state == SME_CONNECTING) {
755 /* inform connect result to cfg80211 */
756 vif->sme_state = SME_CONNECTED;
757 cfg80211_connect_result(vif->ndev, bssid,
758 assoc_req_ie, assoc_req_len,
759 assoc_resp_ie, assoc_resp_len,
760 WLAN_STATUS_SUCCESS, GFP_KERNEL);
761 cfg80211_put_bss(bss);
762 } else if (vif->sme_state == SME_CONNECTED) {
763 /* inform roam event to cfg80211 */
764 cfg80211_roamed_bss(vif->ndev, bss, assoc_req_ie, assoc_req_len,
765 assoc_resp_ie, assoc_resp_len, GFP_KERNEL);
766 }
767 }
768
769 static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy,
770 struct net_device *dev, u16 reason_code)
771 {
772 struct ath6kl *ar = ath6kl_priv(dev);
773 struct ath6kl_vif *vif = netdev_priv(dev);
774
775 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__,
776 reason_code);
777
778 ath6kl_cfg80211_sscan_disable(vif);
779
780 if (!ath6kl_cfg80211_ready(vif))
781 return -EIO;
782
783 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
784 ath6kl_err("busy, destroy in progress\n");
785 return -EBUSY;
786 }
787
788 if (down_interruptible(&ar->sem)) {
789 ath6kl_err("busy, couldn't get access\n");
790 return -ERESTARTSYS;
791 }
792
793 vif->reconnect_flag = 0;
794 ath6kl_disconnect(vif);
795 memset(vif->ssid, 0, sizeof(vif->ssid));
796 vif->ssid_len = 0;
797
798 if (!test_bit(SKIP_SCAN, &ar->flag))
799 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
800
801 up(&ar->sem);
802
803 vif->sme_state = SME_DISCONNECTED;
804
805 return 0;
806 }
807
808 void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason,
809 u8 *bssid, u8 assoc_resp_len,
810 u8 *assoc_info, u16 proto_reason)
811 {
812 struct ath6kl *ar = vif->ar;
813
814 if (vif->scan_req) {
815 cfg80211_scan_done(vif->scan_req, true);
816 vif->scan_req = NULL;
817 }
818
819 if (vif->nw_type & ADHOC_NETWORK) {
820 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) {
821 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
822 "%s: ath6k not in ibss mode\n", __func__);
823 return;
824 }
825 memset(bssid, 0, ETH_ALEN);
826 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL);
827 return;
828 }
829
830 if (vif->nw_type & INFRA_NETWORK) {
831 if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
832 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
833 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
834 "%s: ath6k not in station mode\n", __func__);
835 return;
836 }
837 }
838
839 /*
840 * Send a disconnect command to target when a disconnect event is
841 * received with reason code other than 3 (DISCONNECT_CMD - disconnect
842 * request from host) to make the firmware stop trying to connect even
843 * after giving disconnect event. There will be one more disconnect
844 * event for this disconnect command with reason code DISCONNECT_CMD
845 * which will be notified to cfg80211.
846 */
847
848 if (reason != DISCONNECT_CMD) {
849 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
850 return;
851 }
852
853 clear_bit(CONNECT_PEND, &vif->flags);
854
855 if (vif->sme_state == SME_CONNECTING) {
856 cfg80211_connect_result(vif->ndev,
857 bssid, NULL, 0,
858 NULL, 0,
859 WLAN_STATUS_UNSPECIFIED_FAILURE,
860 GFP_KERNEL);
861 } else if (vif->sme_state == SME_CONNECTED) {
862 cfg80211_disconnected(vif->ndev, reason,
863 NULL, 0, GFP_KERNEL);
864 }
865
866 vif->sme_state = SME_DISCONNECTED;
867 }
868
869 static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
870 struct cfg80211_scan_request *request)
871 {
872 struct ath6kl *ar = ath6kl_priv(ndev);
873 struct ath6kl_vif *vif = netdev_priv(ndev);
874 s8 n_channels = 0;
875 u16 *channels = NULL;
876 int ret = 0;
877 u32 force_fg_scan = 0;
878
879 if (!ath6kl_cfg80211_ready(vif))
880 return -EIO;
881
882 ath6kl_cfg80211_sscan_disable(vif);
883
884 if (!ar->usr_bss_filter) {
885 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
886 ret = ath6kl_wmi_bssfilter_cmd(
887 ar->wmi, vif->fw_vif_idx,
888 (test_bit(CONNECTED, &vif->flags) ?
889 ALL_BUT_BSS_FILTER : ALL_BSS_FILTER), 0);
890 if (ret) {
891 ath6kl_err("couldn't set bss filtering\n");
892 return ret;
893 }
894 }
895
896 if (request->n_ssids && request->ssids[0].ssid_len) {
897 u8 i;
898
899 if (request->n_ssids > (MAX_PROBED_SSID_INDEX - 1))
900 request->n_ssids = MAX_PROBED_SSID_INDEX - 1;
901
902 for (i = 0; i < request->n_ssids; i++)
903 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
904 i + 1, SPECIFIC_SSID_FLAG,
905 request->ssids[i].ssid_len,
906 request->ssids[i].ssid);
907 }
908
909 /* this also clears IE in fw if it's not set */
910 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
911 WMI_FRAME_PROBE_REQ,
912 request->ie, request->ie_len);
913 if (ret) {
914 ath6kl_err("failed to set Probe Request appie for "
915 "scan");
916 return ret;
917 }
918
919 /*
920 * Scan only the requested channels if the request specifies a set of
921 * channels. If the list is longer than the target supports, do not
922 * configure the list and instead, scan all available channels.
923 */
924 if (request->n_channels > 0 &&
925 request->n_channels <= WMI_MAX_CHANNELS) {
926 u8 i;
927
928 n_channels = request->n_channels;
929
930 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL);
931 if (channels == NULL) {
932 ath6kl_warn("failed to set scan channels, "
933 "scan all channels");
934 n_channels = 0;
935 }
936
937 for (i = 0; i < n_channels; i++)
938 channels[i] = request->channels[i]->center_freq;
939 }
940
941 if (test_bit(CONNECTED, &vif->flags))
942 force_fg_scan = 1;
943
944 if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
945 ar->fw_capabilities)) {
946 /*
947 * If capable of doing P2P mgmt operations using
948 * station interface, send additional information like
949 * supported rates to advertise and xmit rates for
950 * probe requests
951 */
952 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx,
953 WMI_LONG_SCAN, force_fg_scan,
954 false, 0,
955 ATH6KL_FG_SCAN_INTERVAL,
956 n_channels, channels,
957 request->no_cck,
958 request->rates);
959 } else {
960 ret = ath6kl_wmi_startscan_cmd(ar->wmi, vif->fw_vif_idx,
961 WMI_LONG_SCAN, force_fg_scan,
962 false, 0,
963 ATH6KL_FG_SCAN_INTERVAL,
964 n_channels, channels);
965 }
966 if (ret)
967 ath6kl_err("wmi_startscan_cmd failed\n");
968 else
969 vif->scan_req = request;
970
971 kfree(channels);
972
973 return ret;
974 }
975
976 void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted)
977 {
978 struct ath6kl *ar = vif->ar;
979 int i;
980
981 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__,
982 aborted ? " aborted" : "");
983
984 if (!vif->scan_req)
985 return;
986
987 if (aborted)
988 goto out;
989
990 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) {
991 for (i = 0; i < vif->scan_req->n_ssids; i++) {
992 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
993 i + 1, DISABLE_SSID_FLAG,
994 0, NULL);
995 }
996 }
997
998 out:
999 cfg80211_scan_done(vif->scan_req, aborted);
1000 vif->scan_req = NULL;
1001 }
1002
1003 static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
1004 u8 key_index, bool pairwise,
1005 const u8 *mac_addr,
1006 struct key_params *params)
1007 {
1008 struct ath6kl *ar = ath6kl_priv(ndev);
1009 struct ath6kl_vif *vif = netdev_priv(ndev);
1010 struct ath6kl_key *key = NULL;
1011 int seq_len;
1012 u8 key_usage;
1013 u8 key_type;
1014
1015 if (!ath6kl_cfg80211_ready(vif))
1016 return -EIO;
1017
1018 if (params->cipher == CCKM_KRK_CIPHER_SUITE) {
1019 if (params->key_len != WMI_KRK_LEN)
1020 return -EINVAL;
1021 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx,
1022 params->key);
1023 }
1024
1025 if (key_index > WMI_MAX_KEY_INDEX) {
1026 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1027 "%s: key index %d out of bounds\n", __func__,
1028 key_index);
1029 return -ENOENT;
1030 }
1031
1032 key = &vif->keys[key_index];
1033 memset(key, 0, sizeof(struct ath6kl_key));
1034
1035 if (pairwise)
1036 key_usage = PAIRWISE_USAGE;
1037 else
1038 key_usage = GROUP_USAGE;
1039
1040 seq_len = params->seq_len;
1041 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 &&
1042 seq_len > ATH6KL_KEY_SEQ_LEN) {
1043 /* Only first half of the WPI PN is configured */
1044 seq_len = ATH6KL_KEY_SEQ_LEN;
1045 }
1046 if (params->key_len > WLAN_MAX_KEY_LEN ||
1047 seq_len > sizeof(key->seq))
1048 return -EINVAL;
1049
1050 key->key_len = params->key_len;
1051 memcpy(key->key, params->key, key->key_len);
1052 key->seq_len = seq_len;
1053 memcpy(key->seq, params->seq, key->seq_len);
1054 key->cipher = params->cipher;
1055
1056 switch (key->cipher) {
1057 case WLAN_CIPHER_SUITE_WEP40:
1058 case WLAN_CIPHER_SUITE_WEP104:
1059 key_type = WEP_CRYPT;
1060 break;
1061
1062 case WLAN_CIPHER_SUITE_TKIP:
1063 key_type = TKIP_CRYPT;
1064 break;
1065
1066 case WLAN_CIPHER_SUITE_CCMP:
1067 key_type = AES_CRYPT;
1068 break;
1069 case WLAN_CIPHER_SUITE_SMS4:
1070 key_type = WAPI_CRYPT;
1071 break;
1072
1073 default:
1074 return -ENOTSUPP;
1075 }
1076
1077 if (((vif->auth_mode == WPA_PSK_AUTH) ||
1078 (vif->auth_mode == WPA2_PSK_AUTH)) &&
1079 (key_usage & GROUP_USAGE))
1080 del_timer(&vif->disconnect_timer);
1081
1082 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1083 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n",
1084 __func__, key_index, key->key_len, key_type,
1085 key_usage, key->seq_len);
1086
1087 if (vif->nw_type == AP_NETWORK && !pairwise &&
1088 (key_type == TKIP_CRYPT || key_type == AES_CRYPT ||
1089 key_type == WAPI_CRYPT)) {
1090 ar->ap_mode_bkey.valid = true;
1091 ar->ap_mode_bkey.key_index = key_index;
1092 ar->ap_mode_bkey.key_type = key_type;
1093 ar->ap_mode_bkey.key_len = key->key_len;
1094 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len);
1095 if (!test_bit(CONNECTED, &vif->flags)) {
1096 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay initial group "
1097 "key configuration until AP mode has been "
1098 "started\n");
1099 /*
1100 * The key will be set in ath6kl_connect_ap_mode() once
1101 * the connected event is received from the target.
1102 */
1103 return 0;
1104 }
1105 }
1106
1107 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT &&
1108 !test_bit(CONNECTED, &vif->flags)) {
1109 /*
1110 * Store the key locally so that it can be re-configured after
1111 * the AP mode has properly started
1112 * (ath6kl_install_statioc_wep_keys).
1113 */
1114 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay WEP key configuration "
1115 "until AP mode has been started\n");
1116 vif->wep_key_list[key_index].key_len = key->key_len;
1117 memcpy(vif->wep_key_list[key_index].key, key->key,
1118 key->key_len);
1119 return 0;
1120 }
1121
1122 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index,
1123 key_type, key_usage, key->key_len,
1124 key->seq, key->seq_len, key->key,
1125 KEY_OP_INIT_VAL,
1126 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG);
1127 }
1128
1129 static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
1130 u8 key_index, bool pairwise,
1131 const u8 *mac_addr)
1132 {
1133 struct ath6kl *ar = ath6kl_priv(ndev);
1134 struct ath6kl_vif *vif = netdev_priv(ndev);
1135
1136 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1137
1138 if (!ath6kl_cfg80211_ready(vif))
1139 return -EIO;
1140
1141 if (key_index > WMI_MAX_KEY_INDEX) {
1142 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1143 "%s: key index %d out of bounds\n", __func__,
1144 key_index);
1145 return -ENOENT;
1146 }
1147
1148 if (!vif->keys[key_index].key_len) {
1149 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1150 "%s: index %d is empty\n", __func__, key_index);
1151 return 0;
1152 }
1153
1154 vif->keys[key_index].key_len = 0;
1155
1156 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index);
1157 }
1158
1159 static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
1160 u8 key_index, bool pairwise,
1161 const u8 *mac_addr, void *cookie,
1162 void (*callback) (void *cookie,
1163 struct key_params *))
1164 {
1165 struct ath6kl_vif *vif = netdev_priv(ndev);
1166 struct ath6kl_key *key = NULL;
1167 struct key_params params;
1168
1169 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1170
1171 if (!ath6kl_cfg80211_ready(vif))
1172 return -EIO;
1173
1174 if (key_index > WMI_MAX_KEY_INDEX) {
1175 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1176 "%s: key index %d out of bounds\n", __func__,
1177 key_index);
1178 return -ENOENT;
1179 }
1180
1181 key = &vif->keys[key_index];
1182 memset(&params, 0, sizeof(params));
1183 params.cipher = key->cipher;
1184 params.key_len = key->key_len;
1185 params.seq_len = key->seq_len;
1186 params.seq = key->seq;
1187 params.key = key->key;
1188
1189 callback(cookie, &params);
1190
1191 return key->key_len ? 0 : -ENOENT;
1192 }
1193
1194 static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy,
1195 struct net_device *ndev,
1196 u8 key_index, bool unicast,
1197 bool multicast)
1198 {
1199 struct ath6kl *ar = ath6kl_priv(ndev);
1200 struct ath6kl_vif *vif = netdev_priv(ndev);
1201 struct ath6kl_key *key = NULL;
1202 u8 key_usage;
1203 enum crypto_type key_type = NONE_CRYPT;
1204
1205 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1206
1207 if (!ath6kl_cfg80211_ready(vif))
1208 return -EIO;
1209
1210 if (key_index > WMI_MAX_KEY_INDEX) {
1211 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1212 "%s: key index %d out of bounds\n",
1213 __func__, key_index);
1214 return -ENOENT;
1215 }
1216
1217 if (!vif->keys[key_index].key_len) {
1218 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n",
1219 __func__, key_index);
1220 return -EINVAL;
1221 }
1222
1223 vif->def_txkey_index = key_index;
1224 key = &vif->keys[vif->def_txkey_index];
1225 key_usage = GROUP_USAGE;
1226 if (vif->prwise_crypto == WEP_CRYPT)
1227 key_usage |= TX_USAGE;
1228 if (unicast)
1229 key_type = vif->prwise_crypto;
1230 if (multicast)
1231 key_type = vif->grp_crypto;
1232
1233 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags))
1234 return 0; /* Delay until AP mode has been started */
1235
1236 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx,
1237 vif->def_txkey_index,
1238 key_type, key_usage,
1239 key->key_len, key->seq, key->seq_len,
1240 key->key,
1241 KEY_OP_INIT_VAL, NULL,
1242 SYNC_BOTH_WMIFLAG);
1243 }
1244
1245 void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid,
1246 bool ismcast)
1247 {
1248 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1249 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast);
1250
1251 cfg80211_michael_mic_failure(vif->ndev, vif->bssid,
1252 (ismcast ? NL80211_KEYTYPE_GROUP :
1253 NL80211_KEYTYPE_PAIRWISE), keyid, NULL,
1254 GFP_KERNEL);
1255 }
1256
1257 static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1258 {
1259 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1260 struct ath6kl_vif *vif;
1261 int ret;
1262
1263 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__,
1264 changed);
1265
1266 vif = ath6kl_vif_first(ar);
1267 if (!vif)
1268 return -EIO;
1269
1270 if (!ath6kl_cfg80211_ready(vif))
1271 return -EIO;
1272
1273 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1274 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold);
1275 if (ret != 0) {
1276 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n");
1277 return -EIO;
1278 }
1279 }
1280
1281 return 0;
1282 }
1283
1284 /*
1285 * The type nl80211_tx_power_setting replaces the following
1286 * data type from 2.6.36 onwards
1287 */
1288 static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy,
1289 enum nl80211_tx_power_setting type,
1290 int mbm)
1291 {
1292 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1293 struct ath6kl_vif *vif;
1294 int dbm = MBM_TO_DBM(mbm);
1295
1296 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__,
1297 type, dbm);
1298
1299 vif = ath6kl_vif_first(ar);
1300 if (!vif)
1301 return -EIO;
1302
1303 if (!ath6kl_cfg80211_ready(vif))
1304 return -EIO;
1305
1306 switch (type) {
1307 case NL80211_TX_POWER_AUTOMATIC:
1308 return 0;
1309 case NL80211_TX_POWER_LIMITED:
1310 ar->tx_pwr = dbm;
1311 break;
1312 default:
1313 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n",
1314 __func__, type);
1315 return -EOPNOTSUPP;
1316 }
1317
1318 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm);
1319
1320 return 0;
1321 }
1322
1323 static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm)
1324 {
1325 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1326 struct ath6kl_vif *vif;
1327
1328 vif = ath6kl_vif_first(ar);
1329 if (!vif)
1330 return -EIO;
1331
1332 if (!ath6kl_cfg80211_ready(vif))
1333 return -EIO;
1334
1335 if (test_bit(CONNECTED, &vif->flags)) {
1336 ar->tx_pwr = 0;
1337
1338 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) {
1339 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n");
1340 return -EIO;
1341 }
1342
1343 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0,
1344 5 * HZ);
1345
1346 if (signal_pending(current)) {
1347 ath6kl_err("target did not respond\n");
1348 return -EINTR;
1349 }
1350 }
1351
1352 *dbm = ar->tx_pwr;
1353 return 0;
1354 }
1355
1356 static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
1357 struct net_device *dev,
1358 bool pmgmt, int timeout)
1359 {
1360 struct ath6kl *ar = ath6kl_priv(dev);
1361 struct wmi_power_mode_cmd mode;
1362 struct ath6kl_vif *vif = netdev_priv(dev);
1363
1364 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",
1365 __func__, pmgmt, timeout);
1366
1367 if (!ath6kl_cfg80211_ready(vif))
1368 return -EIO;
1369
1370 if (pmgmt) {
1371 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);
1372 mode.pwr_mode = REC_POWER;
1373 } else {
1374 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);
1375 mode.pwr_mode = MAX_PERF_POWER;
1376 }
1377
1378 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx,
1379 mode.pwr_mode) != 0) {
1380 ath6kl_err("wmi_powermode_cmd failed\n");
1381 return -EIO;
1382 }
1383
1384 return 0;
1385 }
1386
1387 static struct net_device *ath6kl_cfg80211_add_iface(struct wiphy *wiphy,
1388 char *name,
1389 enum nl80211_iftype type,
1390 u32 *flags,
1391 struct vif_params *params)
1392 {
1393 struct ath6kl *ar = wiphy_priv(wiphy);
1394 struct net_device *ndev;
1395 u8 if_idx, nw_type;
1396
1397 if (ar->num_vif == ar->vif_max) {
1398 ath6kl_err("Reached maximum number of supported vif\n");
1399 return ERR_PTR(-EINVAL);
1400 }
1401
1402 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) {
1403 ath6kl_err("Not a supported interface type\n");
1404 return ERR_PTR(-EINVAL);
1405 }
1406
1407 ndev = ath6kl_interface_add(ar, name, type, if_idx, nw_type);
1408 if (!ndev)
1409 return ERR_PTR(-ENOMEM);
1410
1411 ar->num_vif++;
1412
1413 return ndev;
1414 }
1415
1416 static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy,
1417 struct net_device *ndev)
1418 {
1419 struct ath6kl *ar = wiphy_priv(wiphy);
1420 struct ath6kl_vif *vif = netdev_priv(ndev);
1421
1422 spin_lock_bh(&ar->list_lock);
1423 list_del(&vif->list);
1424 spin_unlock_bh(&ar->list_lock);
1425
1426 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag));
1427
1428 ath6kl_cfg80211_vif_cleanup(vif);
1429
1430 return 0;
1431 }
1432
1433 static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
1434 struct net_device *ndev,
1435 enum nl80211_iftype type, u32 *flags,
1436 struct vif_params *params)
1437 {
1438 struct ath6kl_vif *vif = netdev_priv(ndev);
1439
1440 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
1441
1442 switch (type) {
1443 case NL80211_IFTYPE_STATION:
1444 vif->next_mode = INFRA_NETWORK;
1445 break;
1446 case NL80211_IFTYPE_ADHOC:
1447 vif->next_mode = ADHOC_NETWORK;
1448 break;
1449 case NL80211_IFTYPE_AP:
1450 vif->next_mode = AP_NETWORK;
1451 break;
1452 case NL80211_IFTYPE_P2P_CLIENT:
1453 vif->next_mode = INFRA_NETWORK;
1454 break;
1455 case NL80211_IFTYPE_P2P_GO:
1456 vif->next_mode = AP_NETWORK;
1457 break;
1458 default:
1459 ath6kl_err("invalid interface type %u\n", type);
1460 return -EOPNOTSUPP;
1461 }
1462
1463 vif->wdev.iftype = type;
1464
1465 return 0;
1466 }
1467
1468 static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,
1469 struct net_device *dev,
1470 struct cfg80211_ibss_params *ibss_param)
1471 {
1472 struct ath6kl *ar = ath6kl_priv(dev);
1473 struct ath6kl_vif *vif = netdev_priv(dev);
1474 int status;
1475
1476 if (!ath6kl_cfg80211_ready(vif))
1477 return -EIO;
1478
1479 vif->ssid_len = ibss_param->ssid_len;
1480 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len);
1481
1482 if (ibss_param->channel)
1483 vif->ch_hint = ibss_param->channel->center_freq;
1484
1485 if (ibss_param->channel_fixed) {
1486 /*
1487 * TODO: channel_fixed: The channel should be fixed, do not
1488 * search for IBSSs to join on other channels. Target
1489 * firmware does not support this feature, needs to be
1490 * updated.
1491 */
1492 return -EOPNOTSUPP;
1493 }
1494
1495 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
1496 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))
1497 memcpy(vif->req_bssid, ibss_param->bssid,
1498 sizeof(vif->req_bssid));
1499
1500 ath6kl_set_wpa_version(vif, 0);
1501
1502 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM);
1503 if (status)
1504 return status;
1505
1506 if (ibss_param->privacy) {
1507 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true);
1508 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false);
1509 } else {
1510 ath6kl_set_cipher(vif, 0, true);
1511 ath6kl_set_cipher(vif, 0, false);
1512 }
1513
1514 vif->nw_type = vif->next_mode;
1515
1516 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1517 "%s: connect called with authmode %d dot11 auth %d"
1518 " PW crypto %d PW crypto len %d GRP crypto %d"
1519 " GRP crypto len %d channel hint %u\n",
1520 __func__,
1521 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
1522 vif->prwise_crypto_len, vif->grp_crypto,
1523 vif->grp_crypto_len, vif->ch_hint);
1524
1525 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
1526 vif->dot11_auth_mode, vif->auth_mode,
1527 vif->prwise_crypto,
1528 vif->prwise_crypto_len,
1529 vif->grp_crypto, vif->grp_crypto_len,
1530 vif->ssid_len, vif->ssid,
1531 vif->req_bssid, vif->ch_hint,
1532 ar->connect_ctrl_flags, SUBTYPE_NONE);
1533 set_bit(CONNECT_PEND, &vif->flags);
1534
1535 return 0;
1536 }
1537
1538 static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,
1539 struct net_device *dev)
1540 {
1541 struct ath6kl_vif *vif = netdev_priv(dev);
1542
1543 if (!ath6kl_cfg80211_ready(vif))
1544 return -EIO;
1545
1546 ath6kl_disconnect(vif);
1547 memset(vif->ssid, 0, sizeof(vif->ssid));
1548 vif->ssid_len = 0;
1549
1550 return 0;
1551 }
1552
1553 static const u32 cipher_suites[] = {
1554 WLAN_CIPHER_SUITE_WEP40,
1555 WLAN_CIPHER_SUITE_WEP104,
1556 WLAN_CIPHER_SUITE_TKIP,
1557 WLAN_CIPHER_SUITE_CCMP,
1558 CCKM_KRK_CIPHER_SUITE,
1559 WLAN_CIPHER_SUITE_SMS4,
1560 };
1561
1562 static bool is_rate_legacy(s32 rate)
1563 {
1564 static const s32 legacy[] = { 1000, 2000, 5500, 11000,
1565 6000, 9000, 12000, 18000, 24000,
1566 36000, 48000, 54000
1567 };
1568 u8 i;
1569
1570 for (i = 0; i < ARRAY_SIZE(legacy); i++)
1571 if (rate == legacy[i])
1572 return true;
1573
1574 return false;
1575 }
1576
1577 static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
1578 {
1579 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
1580 52000, 58500, 65000, 72200
1581 };
1582 u8 i;
1583
1584 for (i = 0; i < ARRAY_SIZE(ht20); i++) {
1585 if (rate == ht20[i]) {
1586 if (i == ARRAY_SIZE(ht20) - 1)
1587 /* last rate uses sgi */
1588 *sgi = true;
1589 else
1590 *sgi = false;
1591
1592 *mcs = i;
1593 return true;
1594 }
1595 }
1596 return false;
1597 }
1598
1599 static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
1600 {
1601 static const s32 ht40[] = { 13500, 27000, 40500, 54000,
1602 81000, 108000, 121500, 135000,
1603 150000
1604 };
1605 u8 i;
1606
1607 for (i = 0; i < ARRAY_SIZE(ht40); i++) {
1608 if (rate == ht40[i]) {
1609 if (i == ARRAY_SIZE(ht40) - 1)
1610 /* last rate uses sgi */
1611 *sgi = true;
1612 else
1613 *sgi = false;
1614
1615 *mcs = i;
1616 return true;
1617 }
1618 }
1619
1620 return false;
1621 }
1622
1623 static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,
1624 u8 *mac, struct station_info *sinfo)
1625 {
1626 struct ath6kl *ar = ath6kl_priv(dev);
1627 struct ath6kl_vif *vif = netdev_priv(dev);
1628 long left;
1629 bool sgi;
1630 s32 rate;
1631 int ret;
1632 u8 mcs;
1633
1634 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0)
1635 return -ENOENT;
1636
1637 if (down_interruptible(&ar->sem))
1638 return -EBUSY;
1639
1640 set_bit(STATS_UPDATE_PEND, &vif->flags);
1641
1642 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx);
1643
1644 if (ret != 0) {
1645 up(&ar->sem);
1646 return -EIO;
1647 }
1648
1649 left = wait_event_interruptible_timeout(ar->event_wq,
1650 !test_bit(STATS_UPDATE_PEND,
1651 &vif->flags),
1652 WMI_TIMEOUT);
1653
1654 up(&ar->sem);
1655
1656 if (left == 0)
1657 return -ETIMEDOUT;
1658 else if (left < 0)
1659 return left;
1660
1661 if (vif->target_stats.rx_byte) {
1662 sinfo->rx_bytes = vif->target_stats.rx_byte;
1663 sinfo->filled |= STATION_INFO_RX_BYTES;
1664 sinfo->rx_packets = vif->target_stats.rx_pkt;
1665 sinfo->filled |= STATION_INFO_RX_PACKETS;
1666 }
1667
1668 if (vif->target_stats.tx_byte) {
1669 sinfo->tx_bytes = vif->target_stats.tx_byte;
1670 sinfo->filled |= STATION_INFO_TX_BYTES;
1671 sinfo->tx_packets = vif->target_stats.tx_pkt;
1672 sinfo->filled |= STATION_INFO_TX_PACKETS;
1673 }
1674
1675 sinfo->signal = vif->target_stats.cs_rssi;
1676 sinfo->filled |= STATION_INFO_SIGNAL;
1677
1678 rate = vif->target_stats.tx_ucast_rate;
1679
1680 if (is_rate_legacy(rate)) {
1681 sinfo->txrate.legacy = rate / 100;
1682 } else if (is_rate_ht20(rate, &mcs, &sgi)) {
1683 if (sgi) {
1684 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1685 sinfo->txrate.mcs = mcs - 1;
1686 } else {
1687 sinfo->txrate.mcs = mcs;
1688 }
1689
1690 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1691 } else if (is_rate_ht40(rate, &mcs, &sgi)) {
1692 if (sgi) {
1693 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1694 sinfo->txrate.mcs = mcs - 1;
1695 } else {
1696 sinfo->txrate.mcs = mcs;
1697 }
1698
1699 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
1700 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1701 } else {
1702 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1703 "invalid rate from stats: %d\n", rate);
1704 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE);
1705 return 0;
1706 }
1707
1708 sinfo->filled |= STATION_INFO_TX_BITRATE;
1709
1710 if (test_bit(CONNECTED, &vif->flags) &&
1711 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) &&
1712 vif->nw_type == INFRA_NETWORK) {
1713 sinfo->filled |= STATION_INFO_BSS_PARAM;
1714 sinfo->bss_param.flags = 0;
1715 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period;
1716 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int;
1717 }
1718
1719 return 0;
1720 }
1721
1722 static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1723 struct cfg80211_pmksa *pmksa)
1724 {
1725 struct ath6kl *ar = ath6kl_priv(netdev);
1726 struct ath6kl_vif *vif = netdev_priv(netdev);
1727
1728 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1729 pmksa->pmkid, true);
1730 }
1731
1732 static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1733 struct cfg80211_pmksa *pmksa)
1734 {
1735 struct ath6kl *ar = ath6kl_priv(netdev);
1736 struct ath6kl_vif *vif = netdev_priv(netdev);
1737
1738 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1739 pmksa->pmkid, false);
1740 }
1741
1742 static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
1743 {
1744 struct ath6kl *ar = ath6kl_priv(netdev);
1745 struct ath6kl_vif *vif = netdev_priv(netdev);
1746
1747 if (test_bit(CONNECTED, &vif->flags))
1748 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx,
1749 vif->bssid, NULL, false);
1750 return 0;
1751 }
1752
1753 static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif,
1754 struct cfg80211_wowlan *wow, u32 *filter)
1755 {
1756 int ret, pos;
1757 u8 mask[WOW_MASK_SIZE];
1758 u16 i;
1759
1760 /* Configure the patterns that we received from the user. */
1761 for (i = 0; i < wow->n_patterns; i++) {
1762
1763 /*
1764 * Convert given nl80211 specific mask value to equivalent
1765 * driver specific mask value and send it to the chip along
1766 * with patterns. For example, If the mask value defined in
1767 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010),
1768 * then equivalent driver specific mask value is
1769 * "0xFF 0x00 0xFF 0x00".
1770 */
1771 memset(&mask, 0, sizeof(mask));
1772 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) {
1773 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8)))
1774 mask[pos] = 0xFF;
1775 }
1776 /*
1777 * Note: Pattern's offset is not passed as part of wowlan
1778 * parameter from CFG layer. So it's always passed as ZERO
1779 * to the firmware. It means, given WOW patterns are always
1780 * matched from the first byte of received pkt in the firmware.
1781 */
1782 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1783 vif->fw_vif_idx, WOW_LIST_ID,
1784 wow->patterns[i].pattern_len,
1785 0 /* pattern offset */,
1786 wow->patterns[i].pattern, mask);
1787 if (ret)
1788 return ret;
1789 }
1790
1791 if (wow->disconnect)
1792 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC;
1793
1794 if (wow->magic_pkt)
1795 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET;
1796
1797 if (wow->gtk_rekey_failure)
1798 *filter |= WOW_FILTER_OPTION_GTK_ERROR;
1799
1800 if (wow->eap_identity_req)
1801 *filter |= WOW_FILTER_OPTION_EAP_REQ;
1802
1803 if (wow->four_way_handshake)
1804 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS;
1805
1806 return 0;
1807 }
1808
1809 static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif)
1810 {
1811 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00,
1812 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1813 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1814 0x00, 0x08 };
1815 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00,
1816 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1817 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1818 0x00, 0x7f };
1819 u8 unicst_offset = 0;
1820 static const u8 arp_pattern[] = { 0x08, 0x06 };
1821 static const u8 arp_mask[] = { 0xff, 0xff };
1822 u8 arp_offset = 20;
1823 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
1824 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
1825 u8 discvr_offset = 38;
1826 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff,
1827 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1828 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00,
1829 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1830 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1831 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ };
1832 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff,
1833 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1834 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
1835 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1836 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1837 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ };
1838 u8 dhcp_offset = 0;
1839 int ret;
1840
1841 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */
1842 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1843 vif->fw_vif_idx, WOW_LIST_ID,
1844 sizeof(unicst_pattern), unicst_offset,
1845 unicst_pattern, unicst_mask);
1846 if (ret) {
1847 ath6kl_err("failed to add WOW unicast IP pattern\n");
1848 return ret;
1849 }
1850
1851 /* Setup all ARP pkt pattern */
1852 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1853 vif->fw_vif_idx, WOW_LIST_ID,
1854 sizeof(arp_pattern), arp_offset,
1855 arp_pattern, arp_mask);
1856 if (ret) {
1857 ath6kl_err("failed to add WOW ARP pattern\n");
1858 return ret;
1859 }
1860
1861 /*
1862 * Setup multicast pattern for mDNS 224.0.0.251,
1863 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
1864 */
1865 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1866 vif->fw_vif_idx, WOW_LIST_ID,
1867 sizeof(discvr_pattern), discvr_offset,
1868 discvr_pattern, discvr_mask);
1869 if (ret) {
1870 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
1871 return ret;
1872 }
1873
1874 /* Setup all DHCP broadcast pkt pattern */
1875 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1876 vif->fw_vif_idx, WOW_LIST_ID,
1877 sizeof(dhcp_pattern), dhcp_offset,
1878 dhcp_pattern, dhcp_mask);
1879 if (ret) {
1880 ath6kl_err("failed to add WOW DHCP broadcast pattern\n");
1881 return ret;
1882 }
1883
1884 return 0;
1885 }
1886
1887 static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif)
1888 {
1889 struct net_device *ndev = vif->ndev;
1890 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
1891 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
1892 u8 discvr_offset = 38;
1893 u8 mac_mask[ETH_ALEN];
1894 int ret;
1895
1896 /* Setup unicast pkt pattern */
1897 memset(mac_mask, 0xff, ETH_ALEN);
1898 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1899 vif->fw_vif_idx, WOW_LIST_ID,
1900 ETH_ALEN, 0, ndev->dev_addr,
1901 mac_mask);
1902 if (ret) {
1903 ath6kl_err("failed to add WOW unicast pattern\n");
1904 return ret;
1905 }
1906
1907 /*
1908 * Setup multicast pattern for mDNS 224.0.0.251,
1909 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
1910 */
1911 if ((ndev->flags & IFF_ALLMULTI) ||
1912 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) {
1913 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1914 vif->fw_vif_idx, WOW_LIST_ID,
1915 sizeof(discvr_pattern), discvr_offset,
1916 discvr_pattern, discvr_mask);
1917 if (ret) {
1918 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR "
1919 "pattern\n");
1920 return ret;
1921 }
1922 }
1923
1924 return 0;
1925 }
1926
1927 static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
1928 {
1929 struct in_device *in_dev;
1930 struct in_ifaddr *ifa;
1931 struct ath6kl_vif *vif;
1932 int ret, left;
1933 u32 filter = 0;
1934 u16 i, bmiss_time;
1935 u8 index = 0;
1936 __be32 ips[MAX_IP_ADDRS];
1937
1938 vif = ath6kl_vif_first(ar);
1939 if (!vif)
1940 return -EIO;
1941
1942 if (!ath6kl_cfg80211_ready(vif))
1943 return -EIO;
1944
1945 if (!test_bit(CONNECTED, &vif->flags))
1946 return -ENOTCONN;
1947
1948 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST))
1949 return -EINVAL;
1950
1951 /* Clear existing WOW patterns */
1952 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++)
1953 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx,
1954 WOW_LIST_ID, i);
1955
1956 /*
1957 * Skip the default WOW pattern configuration
1958 * if the driver receives any WOW patterns from
1959 * the user.
1960 */
1961 if (wow)
1962 ret = ath6kl_wow_usr(ar, vif, wow, &filter);
1963 else if (vif->nw_type == AP_NETWORK)
1964 ret = ath6kl_wow_ap(ar, vif);
1965 else
1966 ret = ath6kl_wow_sta(ar, vif);
1967
1968 if (ret)
1969 return ret;
1970
1971 netif_stop_queue(vif->ndev);
1972
1973 if (vif->nw_type != AP_NETWORK) {
1974 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
1975 ATH6KL_MAX_WOW_LISTEN_INTL,
1976 0);
1977 if (ret)
1978 return ret;
1979
1980 /* Set listen interval x 15 times as bmiss time */
1981 bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15;
1982 if (bmiss_time > ATH6KL_MAX_BMISS_TIME)
1983 bmiss_time = ATH6KL_MAX_BMISS_TIME;
1984
1985 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
1986 bmiss_time, 0);
1987 if (ret)
1988 return ret;
1989
1990 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
1991 0xFFFF, 0, 0xFFFF, 0, 0, 0,
1992 0, 0, 0, 0);
1993 if (ret)
1994 return ret;
1995 }
1996
1997 ar->state = ATH6KL_STATE_SUSPENDING;
1998
1999 /* Setup own IP addr for ARP agent. */
2000 in_dev = __in_dev_get_rtnl(vif->ndev);
2001 if (!in_dev)
2002 goto skip_arp;
2003
2004 ifa = in_dev->ifa_list;
2005 memset(&ips, 0, sizeof(ips));
2006
2007 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */
2008 while (index < MAX_IP_ADDRS && ifa) {
2009 ips[index] = ifa->ifa_local;
2010 ifa = ifa->ifa_next;
2011 index++;
2012 }
2013
2014 if (ifa) {
2015 ath6kl_err("total IP addr count is exceeding fw limit\n");
2016 return -EINVAL;
2017 }
2018
2019 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]);
2020 if (ret) {
2021 ath6kl_err("fail to setup ip for arp agent\n");
2022 return ret;
2023 }
2024
2025 skip_arp:
2026 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
2027 ATH6KL_WOW_MODE_ENABLE,
2028 filter,
2029 WOW_HOST_REQ_DELAY);
2030 if (ret)
2031 return ret;
2032
2033 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2034
2035 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2036 ATH6KL_HOST_MODE_ASLEEP);
2037 if (ret)
2038 return ret;
2039
2040 left = wait_event_interruptible_timeout(ar->event_wq,
2041 test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags),
2042 WMI_TIMEOUT);
2043 if (left == 0) {
2044 ath6kl_warn("timeout, didn't get host sleep cmd "
2045 "processed event\n");
2046 ret = -ETIMEDOUT;
2047 } else if (left < 0) {
2048 ath6kl_warn("error while waiting for host sleep cmd "
2049 "processed event %d\n", left);
2050 ret = left;
2051 }
2052
2053 if (ar->tx_pending[ar->ctrl_ep]) {
2054 left = wait_event_interruptible_timeout(ar->event_wq,
2055 ar->tx_pending[ar->ctrl_ep] == 0, WMI_TIMEOUT);
2056 if (left == 0) {
2057 ath6kl_warn("clear wmi ctrl data timeout\n");
2058 ret = -ETIMEDOUT;
2059 } else if (left < 0) {
2060 ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
2061 ret = left;
2062 }
2063 }
2064
2065 return ret;
2066 }
2067
2068 static int ath6kl_wow_resume(struct ath6kl *ar)
2069 {
2070 struct ath6kl_vif *vif;
2071 int ret;
2072
2073 vif = ath6kl_vif_first(ar);
2074 if (!vif)
2075 return -EIO;
2076
2077 ar->state = ATH6KL_STATE_RESUMING;
2078
2079 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2080 ATH6KL_HOST_MODE_AWAKE);
2081 if (ret) {
2082 ath6kl_warn("Failed to configure host sleep mode for "
2083 "wow resume: %d\n", ret);
2084 ar->state = ATH6KL_STATE_WOW;
2085 return ret;
2086 }
2087
2088 if (vif->nw_type != AP_NETWORK) {
2089 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2090 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
2091 if (ret)
2092 return ret;
2093
2094 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
2095 vif->listen_intvl_t, 0);
2096 if (ret)
2097 return ret;
2098
2099 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
2100 vif->bmiss_time_t, 0);
2101 if (ret)
2102 return ret;
2103 }
2104
2105 ar->state = ATH6KL_STATE_ON;
2106
2107 netif_wake_queue(vif->ndev);
2108
2109 return 0;
2110 }
2111
2112 int ath6kl_cfg80211_suspend(struct ath6kl *ar,
2113 enum ath6kl_cfg_suspend_mode mode,
2114 struct cfg80211_wowlan *wow)
2115 {
2116 enum ath6kl_state prev_state;
2117 int ret;
2118
2119 switch (mode) {
2120 case ATH6KL_CFG_SUSPEND_WOW:
2121
2122 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n");
2123
2124 /* Flush all non control pkts in TX path */
2125 ath6kl_tx_data_cleanup(ar);
2126
2127 prev_state = ar->state;
2128
2129 ret = ath6kl_wow_suspend(ar, wow);
2130 if (ret) {
2131 ar->state = prev_state;
2132 return ret;
2133 }
2134
2135 ar->state = ATH6KL_STATE_WOW;
2136 break;
2137
2138 case ATH6KL_CFG_SUSPEND_DEEPSLEEP:
2139
2140 ath6kl_cfg80211_stop_all(ar);
2141
2142 /* save the current power mode before enabling power save */
2143 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
2144
2145 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
2146 if (ret) {
2147 ath6kl_warn("wmi powermode command failed during suspend: %d\n",
2148 ret);
2149 }
2150
2151 ar->state = ATH6KL_STATE_DEEPSLEEP;
2152
2153 break;
2154
2155 case ATH6KL_CFG_SUSPEND_CUTPOWER:
2156
2157 ath6kl_cfg80211_stop_all(ar);
2158
2159 if (ar->state == ATH6KL_STATE_OFF) {
2160 ath6kl_dbg(ATH6KL_DBG_SUSPEND,
2161 "suspend hw off, no action for cutpower\n");
2162 break;
2163 }
2164
2165 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n");
2166
2167 ret = ath6kl_init_hw_stop(ar);
2168 if (ret) {
2169 ath6kl_warn("failed to stop hw during suspend: %d\n",
2170 ret);
2171 }
2172
2173 ar->state = ATH6KL_STATE_CUTPOWER;
2174
2175 break;
2176
2177 case ATH6KL_CFG_SUSPEND_SCHED_SCAN:
2178 /*
2179 * Nothing needed for schedule scan, firmware is already in
2180 * wow mode and sleeping most of the time.
2181 */
2182 break;
2183
2184 default:
2185 break;
2186 }
2187
2188 return 0;
2189 }
2190 EXPORT_SYMBOL(ath6kl_cfg80211_suspend);
2191
2192 int ath6kl_cfg80211_resume(struct ath6kl *ar)
2193 {
2194 int ret;
2195
2196 switch (ar->state) {
2197 case ATH6KL_STATE_WOW:
2198 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n");
2199
2200 ret = ath6kl_wow_resume(ar);
2201 if (ret) {
2202 ath6kl_warn("wow mode resume failed: %d\n", ret);
2203 return ret;
2204 }
2205
2206 break;
2207
2208 case ATH6KL_STATE_DEEPSLEEP:
2209 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
2210 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
2211 ar->wmi->saved_pwr_mode);
2212 if (ret) {
2213 ath6kl_warn("wmi powermode command failed during resume: %d\n",
2214 ret);
2215 }
2216 }
2217
2218 ar->state = ATH6KL_STATE_ON;
2219
2220 break;
2221
2222 case ATH6KL_STATE_CUTPOWER:
2223 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n");
2224
2225 ret = ath6kl_init_hw_start(ar);
2226 if (ret) {
2227 ath6kl_warn("Failed to boot hw in resume: %d\n", ret);
2228 return ret;
2229 }
2230 break;
2231
2232 case ATH6KL_STATE_SCHED_SCAN:
2233 break;
2234
2235 default:
2236 break;
2237 }
2238
2239 return 0;
2240 }
2241 EXPORT_SYMBOL(ath6kl_cfg80211_resume);
2242
2243 #ifdef CONFIG_PM
2244
2245 /* hif layer decides what suspend mode to use */
2246 static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy,
2247 struct cfg80211_wowlan *wow)
2248 {
2249 struct ath6kl *ar = wiphy_priv(wiphy);
2250
2251 return ath6kl_hif_suspend(ar, wow);
2252 }
2253
2254 static int __ath6kl_cfg80211_resume(struct wiphy *wiphy)
2255 {
2256 struct ath6kl *ar = wiphy_priv(wiphy);
2257
2258 return ath6kl_hif_resume(ar);
2259 }
2260
2261 /*
2262 * FIXME: WOW suspend mode is selected if the host sdio controller supports
2263 * both sdio irq wake up and keep power. The target pulls sdio data line to
2264 * wake up the host when WOW pattern matches. This causes sdio irq handler
2265 * is being called in the host side which internally hits ath6kl's RX path.
2266 *
2267 * Since sdio interrupt is not disabled, RX path executes even before
2268 * the host executes the actual resume operation from PM module.
2269 *
2270 * In the current scenario, WOW resume should happen before start processing
2271 * any data from the target. So It's required to perform WOW resume in RX path.
2272 * Ideally we should perform WOW resume only in the actual platform
2273 * resume path. This area needs bit rework to avoid WOW resume in RX path.
2274 *
2275 * ath6kl_check_wow_status() is called from ath6kl_rx().
2276 */
2277 void ath6kl_check_wow_status(struct ath6kl *ar)
2278 {
2279 if (ar->state == ATH6KL_STATE_SUSPENDING)
2280 return;
2281
2282 if (ar->state == ATH6KL_STATE_WOW)
2283 ath6kl_cfg80211_resume(ar);
2284 }
2285
2286 #else
2287
2288 void ath6kl_check_wow_status(struct ath6kl *ar)
2289 {
2290 }
2291 #endif
2292
2293 static int ath6kl_set_channel(struct wiphy *wiphy, struct net_device *dev,
2294 struct ieee80211_channel *chan,
2295 enum nl80211_channel_type channel_type)
2296 {
2297 struct ath6kl_vif *vif;
2298
2299 /*
2300 * 'dev' could be NULL if a channel change is required for the hardware
2301 * device itself, instead of a particular VIF.
2302 *
2303 * FIXME: To be handled properly when monitor mode is supported.
2304 */
2305 if (!dev)
2306 return -EBUSY;
2307
2308 vif = netdev_priv(dev);
2309
2310 if (!ath6kl_cfg80211_ready(vif))
2311 return -EIO;
2312
2313 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: center_freq=%u hw_value=%u\n",
2314 __func__, chan->center_freq, chan->hw_value);
2315 vif->next_chan = chan->center_freq;
2316
2317 return 0;
2318 }
2319
2320 static bool ath6kl_is_p2p_ie(const u8 *pos)
2321 {
2322 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
2323 pos[2] == 0x50 && pos[3] == 0x6f &&
2324 pos[4] == 0x9a && pos[5] == 0x09;
2325 }
2326
2327 static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif,
2328 const u8 *ies, size_t ies_len)
2329 {
2330 struct ath6kl *ar = vif->ar;
2331 const u8 *pos;
2332 u8 *buf = NULL;
2333 size_t len = 0;
2334 int ret;
2335
2336 /*
2337 * Filter out P2P IE(s) since they will be included depending on
2338 * the Probe Request frame in ath6kl_send_go_probe_resp().
2339 */
2340
2341 if (ies && ies_len) {
2342 buf = kmalloc(ies_len, GFP_KERNEL);
2343 if (buf == NULL)
2344 return -ENOMEM;
2345 pos = ies;
2346 while (pos + 1 < ies + ies_len) {
2347 if (pos + 2 + pos[1] > ies + ies_len)
2348 break;
2349 if (!ath6kl_is_p2p_ie(pos)) {
2350 memcpy(buf + len, pos, 2 + pos[1]);
2351 len += 2 + pos[1];
2352 }
2353 pos += 2 + pos[1];
2354 }
2355 }
2356
2357 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2358 WMI_FRAME_PROBE_RESP, buf, len);
2359 kfree(buf);
2360 return ret;
2361 }
2362
2363 static int ath6kl_set_ies(struct ath6kl_vif *vif,
2364 struct cfg80211_beacon_data *info)
2365 {
2366 struct ath6kl *ar = vif->ar;
2367 int res;
2368
2369 /* this also clears IE in fw if it's not set */
2370 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2371 WMI_FRAME_BEACON,
2372 info->beacon_ies,
2373 info->beacon_ies_len);
2374 if (res)
2375 return res;
2376
2377 /* this also clears IE in fw if it's not set */
2378 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies,
2379 info->proberesp_ies_len);
2380 if (res)
2381 return res;
2382
2383 /* this also clears IE in fw if it's not set */
2384 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2385 WMI_FRAME_ASSOC_RESP,
2386 info->assocresp_ies,
2387 info->assocresp_ies_len);
2388 if (res)
2389 return res;
2390
2391 return 0;
2392 }
2393
2394 static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
2395 struct cfg80211_ap_settings *info)
2396 {
2397 struct ath6kl *ar = ath6kl_priv(dev);
2398 struct ath6kl_vif *vif = netdev_priv(dev);
2399 struct ieee80211_mgmt *mgmt;
2400 bool hidden = false;
2401 u8 *ies;
2402 int ies_len;
2403 struct wmi_connect_cmd p;
2404 int res;
2405 int i, ret;
2406
2407 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__);
2408
2409 if (!ath6kl_cfg80211_ready(vif))
2410 return -EIO;
2411
2412 if (vif->next_mode != AP_NETWORK)
2413 return -EOPNOTSUPP;
2414
2415 res = ath6kl_set_ies(vif, &info->beacon);
2416
2417 ar->ap_mode_bkey.valid = false;
2418
2419 /* TODO:
2420 * info->interval
2421 * info->dtim_period
2422 */
2423
2424 if (info->beacon.head == NULL)
2425 return -EINVAL;
2426 mgmt = (struct ieee80211_mgmt *) info->beacon.head;
2427 ies = mgmt->u.beacon.variable;
2428 if (ies > info->beacon.head + info->beacon.head_len)
2429 return -EINVAL;
2430 ies_len = info->beacon.head + info->beacon.head_len - ies;
2431
2432 if (info->ssid == NULL)
2433 return -EINVAL;
2434 memcpy(vif->ssid, info->ssid, info->ssid_len);
2435 vif->ssid_len = info->ssid_len;
2436 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE)
2437 hidden = true;
2438
2439 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden);
2440 if (res)
2441 return res;
2442
2443 ret = ath6kl_set_auth_type(vif, info->auth_type);
2444 if (ret)
2445 return ret;
2446
2447 memset(&p, 0, sizeof(p));
2448
2449 for (i = 0; i < info->crypto.n_akm_suites; i++) {
2450 switch (info->crypto.akm_suites[i]) {
2451 case WLAN_AKM_SUITE_8021X:
2452 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2453 p.auth_mode |= WPA_AUTH;
2454 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2455 p.auth_mode |= WPA2_AUTH;
2456 break;
2457 case WLAN_AKM_SUITE_PSK:
2458 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2459 p.auth_mode |= WPA_PSK_AUTH;
2460 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2461 p.auth_mode |= WPA2_PSK_AUTH;
2462 break;
2463 }
2464 }
2465 if (p.auth_mode == 0)
2466 p.auth_mode = NONE_AUTH;
2467 vif->auth_mode = p.auth_mode;
2468
2469 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) {
2470 switch (info->crypto.ciphers_pairwise[i]) {
2471 case WLAN_CIPHER_SUITE_WEP40:
2472 case WLAN_CIPHER_SUITE_WEP104:
2473 p.prwise_crypto_type |= WEP_CRYPT;
2474 break;
2475 case WLAN_CIPHER_SUITE_TKIP:
2476 p.prwise_crypto_type |= TKIP_CRYPT;
2477 break;
2478 case WLAN_CIPHER_SUITE_CCMP:
2479 p.prwise_crypto_type |= AES_CRYPT;
2480 break;
2481 case WLAN_CIPHER_SUITE_SMS4:
2482 p.prwise_crypto_type |= WAPI_CRYPT;
2483 break;
2484 }
2485 }
2486 if (p.prwise_crypto_type == 0) {
2487 p.prwise_crypto_type = NONE_CRYPT;
2488 ath6kl_set_cipher(vif, 0, true);
2489 } else if (info->crypto.n_ciphers_pairwise == 1)
2490 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true);
2491
2492 switch (info->crypto.cipher_group) {
2493 case WLAN_CIPHER_SUITE_WEP40:
2494 case WLAN_CIPHER_SUITE_WEP104:
2495 p.grp_crypto_type = WEP_CRYPT;
2496 break;
2497 case WLAN_CIPHER_SUITE_TKIP:
2498 p.grp_crypto_type = TKIP_CRYPT;
2499 break;
2500 case WLAN_CIPHER_SUITE_CCMP:
2501 p.grp_crypto_type = AES_CRYPT;
2502 break;
2503 case WLAN_CIPHER_SUITE_SMS4:
2504 p.grp_crypto_type = WAPI_CRYPT;
2505 break;
2506 default:
2507 p.grp_crypto_type = NONE_CRYPT;
2508 break;
2509 }
2510 ath6kl_set_cipher(vif, info->crypto.cipher_group, false);
2511
2512 p.nw_type = AP_NETWORK;
2513 vif->nw_type = vif->next_mode;
2514
2515 p.ssid_len = vif->ssid_len;
2516 memcpy(p.ssid, vif->ssid, vif->ssid_len);
2517 p.dot11_auth_mode = vif->dot11_auth_mode;
2518 p.ch = cpu_to_le16(vif->next_chan);
2519
2520 /* Enable uAPSD support by default */
2521 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true);
2522 if (res < 0)
2523 return res;
2524
2525 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) {
2526 p.nw_subtype = SUBTYPE_P2PGO;
2527 } else {
2528 /*
2529 * Due to firmware limitation, it is not possible to
2530 * do P2P mgmt operations in AP mode
2531 */
2532 p.nw_subtype = SUBTYPE_NONE;
2533 }
2534
2535 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p);
2536 if (res < 0)
2537 return res;
2538
2539 return 0;
2540 }
2541
2542 static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev,
2543 struct cfg80211_beacon_data *beacon)
2544 {
2545 struct ath6kl_vif *vif = netdev_priv(dev);
2546
2547 if (!ath6kl_cfg80211_ready(vif))
2548 return -EIO;
2549
2550 if (vif->next_mode != AP_NETWORK)
2551 return -EOPNOTSUPP;
2552
2553 return ath6kl_set_ies(vif, beacon);
2554 }
2555
2556 static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev)
2557 {
2558 struct ath6kl *ar = ath6kl_priv(dev);
2559 struct ath6kl_vif *vif = netdev_priv(dev);
2560
2561 if (vif->nw_type != AP_NETWORK)
2562 return -EOPNOTSUPP;
2563 if (!test_bit(CONNECTED, &vif->flags))
2564 return -ENOTCONN;
2565
2566 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
2567 clear_bit(CONNECTED, &vif->flags);
2568
2569 return 0;
2570 }
2571
2572 static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2573
2574 static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev,
2575 u8 *mac)
2576 {
2577 struct ath6kl *ar = ath6kl_priv(dev);
2578 struct ath6kl_vif *vif = netdev_priv(dev);
2579 const u8 *addr = mac ? mac : bcast_addr;
2580
2581 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH,
2582 addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
2583 }
2584
2585 static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev,
2586 u8 *mac, struct station_parameters *params)
2587 {
2588 struct ath6kl *ar = ath6kl_priv(dev);
2589 struct ath6kl_vif *vif = netdev_priv(dev);
2590
2591 if (vif->nw_type != AP_NETWORK)
2592 return -EOPNOTSUPP;
2593
2594 /* Use this only for authorizing/unauthorizing a station */
2595 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
2596 return -EOPNOTSUPP;
2597
2598 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
2599 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
2600 WMI_AP_MLME_AUTHORIZE, mac, 0);
2601 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
2602 WMI_AP_MLME_UNAUTHORIZE, mac, 0);
2603 }
2604
2605 static int ath6kl_remain_on_channel(struct wiphy *wiphy,
2606 struct net_device *dev,
2607 struct ieee80211_channel *chan,
2608 enum nl80211_channel_type channel_type,
2609 unsigned int duration,
2610 u64 *cookie)
2611 {
2612 struct ath6kl *ar = ath6kl_priv(dev);
2613 struct ath6kl_vif *vif = netdev_priv(dev);
2614 u32 id;
2615
2616 /* TODO: if already pending or ongoing remain-on-channel,
2617 * return -EBUSY */
2618 id = ++vif->last_roc_id;
2619 if (id == 0) {
2620 /* Do not use 0 as the cookie value */
2621 id = ++vif->last_roc_id;
2622 }
2623 *cookie = id;
2624
2625 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx,
2626 chan->center_freq, duration);
2627 }
2628
2629 static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy,
2630 struct net_device *dev,
2631 u64 cookie)
2632 {
2633 struct ath6kl *ar = ath6kl_priv(dev);
2634 struct ath6kl_vif *vif = netdev_priv(dev);
2635
2636 if (cookie != vif->last_roc_id)
2637 return -ENOENT;
2638 vif->last_cancel_roc_id = cookie;
2639
2640 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx);
2641 }
2642
2643 static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif,
2644 const u8 *buf, size_t len,
2645 unsigned int freq)
2646 {
2647 struct ath6kl *ar = vif->ar;
2648 const u8 *pos;
2649 u8 *p2p;
2650 int p2p_len;
2651 int ret;
2652 const struct ieee80211_mgmt *mgmt;
2653
2654 mgmt = (const struct ieee80211_mgmt *) buf;
2655
2656 /* Include P2P IE(s) from the frame generated in user space. */
2657
2658 p2p = kmalloc(len, GFP_KERNEL);
2659 if (p2p == NULL)
2660 return -ENOMEM;
2661 p2p_len = 0;
2662
2663 pos = mgmt->u.probe_resp.variable;
2664 while (pos + 1 < buf + len) {
2665 if (pos + 2 + pos[1] > buf + len)
2666 break;
2667 if (ath6kl_is_p2p_ie(pos)) {
2668 memcpy(p2p + p2p_len, pos, 2 + pos[1]);
2669 p2p_len += 2 + pos[1];
2670 }
2671 pos += 2 + pos[1];
2672 }
2673
2674 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq,
2675 mgmt->da, p2p, p2p_len);
2676 kfree(p2p);
2677 return ret;
2678 }
2679
2680 static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif,
2681 u32 id,
2682 u32 freq,
2683 u32 wait,
2684 const u8 *buf,
2685 size_t len,
2686 bool *more_data,
2687 bool no_cck)
2688 {
2689 struct ieee80211_mgmt *mgmt;
2690 struct ath6kl_sta *conn;
2691 bool is_psq_empty = false;
2692 struct ath6kl_mgmt_buff *mgmt_buf;
2693 size_t mgmt_buf_size;
2694 struct ath6kl *ar = vif->ar;
2695
2696 mgmt = (struct ieee80211_mgmt *) buf;
2697 if (is_multicast_ether_addr(mgmt->da))
2698 return false;
2699
2700 conn = ath6kl_find_sta(vif, mgmt->da);
2701 if (!conn)
2702 return false;
2703
2704 if (conn->sta_flags & STA_PS_SLEEP) {
2705 if (!(conn->sta_flags & STA_PS_POLLED)) {
2706 /* Queue the frames if the STA is sleeping */
2707 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff);
2708 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL);
2709 if (!mgmt_buf)
2710 return false;
2711
2712 INIT_LIST_HEAD(&mgmt_buf->list);
2713 mgmt_buf->id = id;
2714 mgmt_buf->freq = freq;
2715 mgmt_buf->wait = wait;
2716 mgmt_buf->len = len;
2717 mgmt_buf->no_cck = no_cck;
2718 memcpy(mgmt_buf->buf, buf, len);
2719 spin_lock_bh(&conn->psq_lock);
2720 is_psq_empty = skb_queue_empty(&conn->psq) &&
2721 (conn->mgmt_psq_len == 0);
2722 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq);
2723 conn->mgmt_psq_len++;
2724 spin_unlock_bh(&conn->psq_lock);
2725
2726 /*
2727 * If this is the first pkt getting queued
2728 * for this STA, update the PVB for this
2729 * STA.
2730 */
2731 if (is_psq_empty)
2732 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
2733 conn->aid, 1);
2734 return true;
2735 }
2736
2737 /*
2738 * This tx is because of a PsPoll.
2739 * Determine if MoreData bit has to be set.
2740 */
2741 spin_lock_bh(&conn->psq_lock);
2742 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0))
2743 *more_data = true;
2744 spin_unlock_bh(&conn->psq_lock);
2745 }
2746
2747 return false;
2748 }
2749
2750 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
2751 struct ieee80211_channel *chan, bool offchan,
2752 enum nl80211_channel_type channel_type,
2753 bool channel_type_valid, unsigned int wait,
2754 const u8 *buf, size_t len, bool no_cck,
2755 bool dont_wait_for_ack, u64 *cookie)
2756 {
2757 struct ath6kl *ar = ath6kl_priv(dev);
2758 struct ath6kl_vif *vif = netdev_priv(dev);
2759 u32 id;
2760 const struct ieee80211_mgmt *mgmt;
2761 bool more_data, queued;
2762
2763 mgmt = (const struct ieee80211_mgmt *) buf;
2764 if (buf + len >= mgmt->u.probe_resp.variable &&
2765 vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) &&
2766 ieee80211_is_probe_resp(mgmt->frame_control)) {
2767 /*
2768 * Send Probe Response frame in AP mode using a separate WMI
2769 * command to allow the target to fill in the generic IEs.
2770 */
2771 *cookie = 0; /* TX status not supported */
2772 return ath6kl_send_go_probe_resp(vif, buf, len,
2773 chan->center_freq);
2774 }
2775
2776 id = vif->send_action_id++;
2777 if (id == 0) {
2778 /*
2779 * 0 is a reserved value in the WMI command and shall not be
2780 * used for the command.
2781 */
2782 id = vif->send_action_id++;
2783 }
2784
2785 *cookie = id;
2786
2787 /* AP mode Power saving processing */
2788 if (vif->nw_type == AP_NETWORK) {
2789 queued = ath6kl_mgmt_powersave_ap(vif,
2790 id, chan->center_freq,
2791 wait, buf,
2792 len, &more_data, no_cck);
2793 if (queued)
2794 return 0;
2795 }
2796
2797 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id,
2798 chan->center_freq, wait,
2799 buf, len, no_cck);
2800 }
2801
2802 static void ath6kl_mgmt_frame_register(struct wiphy *wiphy,
2803 struct net_device *dev,
2804 u16 frame_type, bool reg)
2805 {
2806 struct ath6kl_vif *vif = netdev_priv(dev);
2807
2808 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n",
2809 __func__, frame_type, reg);
2810 if (frame_type == IEEE80211_STYPE_PROBE_REQ) {
2811 /*
2812 * Note: This notification callback is not allowed to sleep, so
2813 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we
2814 * hardcode target to report Probe Request frames all the time.
2815 */
2816 vif->probe_req_report = reg;
2817 }
2818 }
2819
2820 static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy,
2821 struct net_device *dev,
2822 struct cfg80211_sched_scan_request *request)
2823 {
2824 struct ath6kl *ar = ath6kl_priv(dev);
2825 struct ath6kl_vif *vif = netdev_priv(dev);
2826 u16 interval;
2827 int ret;
2828 u8 i;
2829
2830 if (ar->state != ATH6KL_STATE_ON)
2831 return -EIO;
2832
2833 if (vif->sme_state != SME_DISCONNECTED)
2834 return -EBUSY;
2835
2836 for (i = 0; i < ar->wiphy->max_sched_scan_ssids; i++) {
2837 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
2838 i, DISABLE_SSID_FLAG,
2839 0, NULL);
2840 }
2841
2842 /* fw uses seconds, also make sure that it's >0 */
2843 interval = max_t(u16, 1, request->interval / 1000);
2844
2845 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2846 interval, interval,
2847 10, 0, 0, 0, 3, 0, 0, 0);
2848
2849 if (request->n_ssids && request->ssids[0].ssid_len) {
2850 for (i = 0; i < request->n_ssids; i++) {
2851 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
2852 i, SPECIFIC_SSID_FLAG,
2853 request->ssids[i].ssid_len,
2854 request->ssids[i].ssid);
2855 }
2856 }
2857
2858 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
2859 ATH6KL_WOW_MODE_ENABLE,
2860 WOW_FILTER_SSID,
2861 WOW_HOST_REQ_DELAY);
2862 if (ret) {
2863 ath6kl_warn("Failed to enable wow with ssid filter: %d\n", ret);
2864 return ret;
2865 }
2866
2867 /* this also clears IE in fw if it's not set */
2868 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2869 WMI_FRAME_PROBE_REQ,
2870 request->ie, request->ie_len);
2871 if (ret) {
2872 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d",
2873 ret);
2874 return ret;
2875 }
2876
2877 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2878 ATH6KL_HOST_MODE_ASLEEP);
2879 if (ret) {
2880 ath6kl_warn("Failed to enable host sleep mode for sched scan: %d\n",
2881 ret);
2882 return ret;
2883 }
2884
2885 ar->state = ATH6KL_STATE_SCHED_SCAN;
2886
2887 return ret;
2888 }
2889
2890 static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy,
2891 struct net_device *dev)
2892 {
2893 struct ath6kl_vif *vif = netdev_priv(dev);
2894 bool stopped;
2895
2896 stopped = __ath6kl_cfg80211_sscan_stop(vif);
2897
2898 if (!stopped)
2899 return -EIO;
2900
2901 return 0;
2902 }
2903
2904 static const struct ieee80211_txrx_stypes
2905 ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = {
2906 [NL80211_IFTYPE_STATION] = {
2907 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2908 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
2909 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2910 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
2911 },
2912 [NL80211_IFTYPE_AP] = {
2913 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2914 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
2915 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2916 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
2917 },
2918 [NL80211_IFTYPE_P2P_CLIENT] = {
2919 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2920 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
2921 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2922 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
2923 },
2924 [NL80211_IFTYPE_P2P_GO] = {
2925 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2926 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
2927 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2928 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
2929 },
2930 };
2931
2932 static struct cfg80211_ops ath6kl_cfg80211_ops = {
2933 .add_virtual_intf = ath6kl_cfg80211_add_iface,
2934 .del_virtual_intf = ath6kl_cfg80211_del_iface,
2935 .change_virtual_intf = ath6kl_cfg80211_change_iface,
2936 .scan = ath6kl_cfg80211_scan,
2937 .connect = ath6kl_cfg80211_connect,
2938 .disconnect = ath6kl_cfg80211_disconnect,
2939 .add_key = ath6kl_cfg80211_add_key,
2940 .get_key = ath6kl_cfg80211_get_key,
2941 .del_key = ath6kl_cfg80211_del_key,
2942 .set_default_key = ath6kl_cfg80211_set_default_key,
2943 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,
2944 .set_tx_power = ath6kl_cfg80211_set_txpower,
2945 .get_tx_power = ath6kl_cfg80211_get_txpower,
2946 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,
2947 .join_ibss = ath6kl_cfg80211_join_ibss,
2948 .leave_ibss = ath6kl_cfg80211_leave_ibss,
2949 .get_station = ath6kl_get_station,
2950 .set_pmksa = ath6kl_set_pmksa,
2951 .del_pmksa = ath6kl_del_pmksa,
2952 .flush_pmksa = ath6kl_flush_pmksa,
2953 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd)
2954 #ifdef CONFIG_PM
2955 .suspend = __ath6kl_cfg80211_suspend,
2956 .resume = __ath6kl_cfg80211_resume,
2957 #endif
2958 .set_channel = ath6kl_set_channel,
2959 .start_ap = ath6kl_start_ap,
2960 .change_beacon = ath6kl_change_beacon,
2961 .stop_ap = ath6kl_stop_ap,
2962 .del_station = ath6kl_del_station,
2963 .change_station = ath6kl_change_station,
2964 .remain_on_channel = ath6kl_remain_on_channel,
2965 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel,
2966 .mgmt_tx = ath6kl_mgmt_tx,
2967 .mgmt_frame_register = ath6kl_mgmt_frame_register,
2968 .sched_scan_start = ath6kl_cfg80211_sscan_start,
2969 .sched_scan_stop = ath6kl_cfg80211_sscan_stop,
2970 };
2971
2972 void ath6kl_cfg80211_stop(struct ath6kl_vif *vif)
2973 {
2974 ath6kl_cfg80211_sscan_disable(vif);
2975
2976 switch (vif->sme_state) {
2977 case SME_DISCONNECTED:
2978 break;
2979 case SME_CONNECTING:
2980 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0,
2981 NULL, 0,
2982 WLAN_STATUS_UNSPECIFIED_FAILURE,
2983 GFP_KERNEL);
2984 break;
2985 case SME_CONNECTED:
2986 cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL);
2987 break;
2988 }
2989
2990 if (test_bit(CONNECTED, &vif->flags) ||
2991 test_bit(CONNECT_PEND, &vif->flags))
2992 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
2993
2994 vif->sme_state = SME_DISCONNECTED;
2995 clear_bit(CONNECTED, &vif->flags);
2996 clear_bit(CONNECT_PEND, &vif->flags);
2997
2998 /* disable scanning */
2999 if (ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF,
3000 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0)
3001 ath6kl_warn("failed to disable scan during stop\n");
3002
3003 ath6kl_cfg80211_scan_complete_event(vif, true);
3004 }
3005
3006 void ath6kl_cfg80211_stop_all(struct ath6kl *ar)
3007 {
3008 struct ath6kl_vif *vif;
3009
3010 vif = ath6kl_vif_first(ar);
3011 if (!vif) {
3012 /* save the current power mode before enabling power save */
3013 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
3014
3015 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0)
3016 ath6kl_warn("ath6kl_deep_sleep_enable: "
3017 "wmi_powermode_cmd failed\n");
3018 return;
3019 }
3020
3021 /*
3022 * FIXME: we should take ar->list_lock to protect changes in the
3023 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop()
3024 * sleeps.
3025 */
3026 list_for_each_entry(vif, &ar->vif_list, list)
3027 ath6kl_cfg80211_stop(vif);
3028 }
3029
3030 static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif)
3031 {
3032 vif->aggr_cntxt = aggr_init(vif);
3033 if (!vif->aggr_cntxt) {
3034 ath6kl_err("failed to initialize aggr\n");
3035 return -ENOMEM;
3036 }
3037
3038 setup_timer(&vif->disconnect_timer, disconnect_timer_handler,
3039 (unsigned long) vif->ndev);
3040 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer,
3041 (unsigned long) vif);
3042
3043 set_bit(WMM_ENABLED, &vif->flags);
3044 spin_lock_init(&vif->if_lock);
3045
3046 INIT_LIST_HEAD(&vif->mc_filter);
3047
3048 return 0;
3049 }
3050
3051 void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif)
3052 {
3053 struct ath6kl *ar = vif->ar;
3054 struct ath6kl_mc_filter *mc_filter, *tmp;
3055
3056 aggr_module_destroy(vif->aggr_cntxt);
3057
3058 ar->avail_idx_map |= BIT(vif->fw_vif_idx);
3059
3060 if (vif->nw_type == ADHOC_NETWORK)
3061 ar->ibss_if_active = false;
3062
3063 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
3064 list_del(&mc_filter->list);
3065 kfree(mc_filter);
3066 }
3067
3068 unregister_netdevice(vif->ndev);
3069
3070 ar->num_vif--;
3071 }
3072
3073 struct net_device *ath6kl_interface_add(struct ath6kl *ar, char *name,
3074 enum nl80211_iftype type, u8 fw_vif_idx,
3075 u8 nw_type)
3076 {
3077 struct net_device *ndev;
3078 struct ath6kl_vif *vif;
3079
3080 ndev = alloc_netdev(sizeof(*vif), name, ether_setup);
3081 if (!ndev)
3082 return NULL;
3083
3084 vif = netdev_priv(ndev);
3085 ndev->ieee80211_ptr = &vif->wdev;
3086 vif->wdev.wiphy = ar->wiphy;
3087 vif->ar = ar;
3088 vif->ndev = ndev;
3089 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy));
3090 vif->wdev.netdev = ndev;
3091 vif->wdev.iftype = type;
3092 vif->fw_vif_idx = fw_vif_idx;
3093 vif->nw_type = nw_type;
3094 vif->next_mode = nw_type;
3095 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL;
3096 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME;
3097
3098 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
3099 if (fw_vif_idx != 0)
3100 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) |
3101 0x2;
3102
3103 init_netdev(ndev);
3104
3105 ath6kl_init_control_info(vif);
3106
3107 if (ath6kl_cfg80211_vif_init(vif))
3108 goto err;
3109
3110 if (register_netdevice(ndev))
3111 goto err;
3112
3113 ar->avail_idx_map &= ~BIT(fw_vif_idx);
3114 vif->sme_state = SME_DISCONNECTED;
3115 set_bit(WLAN_ENABLED, &vif->flags);
3116 ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
3117 set_bit(NETDEV_REGISTERED, &vif->flags);
3118
3119 if (type == NL80211_IFTYPE_ADHOC)
3120 ar->ibss_if_active = true;
3121
3122 spin_lock_bh(&ar->list_lock);
3123 list_add_tail(&vif->list, &ar->vif_list);
3124 spin_unlock_bh(&ar->list_lock);
3125
3126 return ndev;
3127
3128 err:
3129 aggr_module_destroy(vif->aggr_cntxt);
3130 free_netdev(ndev);
3131 return NULL;
3132 }
3133
3134 int ath6kl_cfg80211_init(struct ath6kl *ar)
3135 {
3136 struct wiphy *wiphy = ar->wiphy;
3137 int ret;
3138
3139 wiphy->mgmt_stypes = ath6kl_mgmt_stypes;
3140
3141 wiphy->max_remain_on_channel_duration = 5000;
3142
3143 /* set device pointer for wiphy */
3144 set_wiphy_dev(wiphy, ar->dev);
3145
3146 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3147 BIT(NL80211_IFTYPE_ADHOC) |
3148 BIT(NL80211_IFTYPE_AP);
3149 if (ar->p2p) {
3150 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) |
3151 BIT(NL80211_IFTYPE_P2P_CLIENT);
3152 }
3153
3154 /* max num of ssids that can be probed during scanning */
3155 wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX;
3156 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */
3157 wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz;
3158 wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz;
3159 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3160
3161 wiphy->cipher_suites = cipher_suites;
3162 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
3163
3164 wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
3165 WIPHY_WOWLAN_DISCONNECT |
3166 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
3167 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
3168 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
3169 WIPHY_WOWLAN_4WAY_HANDSHAKE;
3170 wiphy->wowlan.n_patterns = WOW_MAX_FILTERS_PER_LIST;
3171 wiphy->wowlan.pattern_min_len = 1;
3172 wiphy->wowlan.pattern_max_len = WOW_PATTERN_SIZE;
3173
3174 wiphy->max_sched_scan_ssids = 10;
3175
3176 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
3177 WIPHY_FLAG_HAVE_AP_SME |
3178 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3179 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
3180
3181 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN, ar->fw_capabilities))
3182 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
3183
3184 ar->wiphy->probe_resp_offload =
3185 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3186 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3187 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P |
3188 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U;
3189
3190 ret = wiphy_register(wiphy);
3191 if (ret < 0) {
3192 ath6kl_err("couldn't register wiphy device\n");
3193 return ret;
3194 }
3195
3196 ar->wiphy_registered = true;
3197
3198 return 0;
3199 }
3200
3201 void ath6kl_cfg80211_cleanup(struct ath6kl *ar)
3202 {
3203 wiphy_unregister(ar->wiphy);
3204
3205 ar->wiphy_registered = false;
3206 }
3207
3208 struct ath6kl *ath6kl_cfg80211_create(void)
3209 {
3210 struct ath6kl *ar;
3211 struct wiphy *wiphy;
3212
3213 /* create a new wiphy for use with cfg80211 */
3214 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));
3215
3216 if (!wiphy) {
3217 ath6kl_err("couldn't allocate wiphy device\n");
3218 return NULL;
3219 }
3220
3221 ar = wiphy_priv(wiphy);
3222 ar->wiphy = wiphy;
3223
3224 return ar;
3225 }
3226
3227 /* Note: ar variable must not be accessed after calling this! */
3228 void ath6kl_cfg80211_destroy(struct ath6kl *ar)
3229 {
3230 int i;
3231
3232 for (i = 0; i < AP_MAX_NUM_STA; i++)
3233 kfree(ar->sta_list[i].aggr_conn);
3234
3235 wiphy_free(ar->wiphy);
3236 }
3237
Linux kernel - Deliverables
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