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ath6kl: Update license header
[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 static struct ieee80211_channel ath6kl_2ghz_channels[] = {
73 CHAN2G(1, 2412, 0),
74 CHAN2G(2, 2417, 0),
75 CHAN2G(3, 2422, 0),
76 CHAN2G(4, 2427, 0),
77 CHAN2G(5, 2432, 0),
78 CHAN2G(6, 2437, 0),
79 CHAN2G(7, 2442, 0),
80 CHAN2G(8, 2447, 0),
81 CHAN2G(9, 2452, 0),
82 CHAN2G(10, 2457, 0),
83 CHAN2G(11, 2462, 0),
84 CHAN2G(12, 2467, 0),
85 CHAN2G(13, 2472, 0),
86 CHAN2G(14, 2484, 0),
87 };
88
89 static struct ieee80211_channel ath6kl_5ghz_a_channels[] = {
90 CHAN5G(34, 0), CHAN5G(36, 0),
91 CHAN5G(38, 0), CHAN5G(40, 0),
92 CHAN5G(42, 0), CHAN5G(44, 0),
93 CHAN5G(46, 0), CHAN5G(48, 0),
94 CHAN5G(52, 0), CHAN5G(56, 0),
95 CHAN5G(60, 0), CHAN5G(64, 0),
96 CHAN5G(100, 0), CHAN5G(104, 0),
97 CHAN5G(108, 0), CHAN5G(112, 0),
98 CHAN5G(116, 0), CHAN5G(120, 0),
99 CHAN5G(124, 0), CHAN5G(128, 0),
100 CHAN5G(132, 0), CHAN5G(136, 0),
101 CHAN5G(140, 0), CHAN5G(149, 0),
102 CHAN5G(153, 0), CHAN5G(157, 0),
103 CHAN5G(161, 0), CHAN5G(165, 0),
104 CHAN5G(184, 0), CHAN5G(188, 0),
105 CHAN5G(192, 0), CHAN5G(196, 0),
106 CHAN5G(200, 0), CHAN5G(204, 0),
107 CHAN5G(208, 0), CHAN5G(212, 0),
108 CHAN5G(216, 0),
109 };
110
111 static struct ieee80211_supported_band ath6kl_band_2ghz = {
112 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels),
113 .channels = ath6kl_2ghz_channels,
114 .n_bitrates = ath6kl_g_rates_size,
115 .bitrates = ath6kl_g_rates,
116 };
117
118 static struct ieee80211_supported_band ath6kl_band_5ghz = {
119 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels),
120 .channels = ath6kl_5ghz_a_channels,
121 .n_bitrates = ath6kl_a_rates_size,
122 .bitrates = ath6kl_a_rates,
123 };
124
125 #define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */
126
127 /* returns true if scheduled scan was stopped */
128 static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif)
129 {
130 struct ath6kl *ar = vif->ar;
131
132 if (ar->state != ATH6KL_STATE_SCHED_SCAN)
133 return false;
134
135 del_timer_sync(&vif->sched_scan_timer);
136
137 ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
138 ATH6KL_HOST_MODE_AWAKE);
139
140 ar->state = ATH6KL_STATE_ON;
141
142 return true;
143 }
144
145 static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif)
146 {
147 struct ath6kl *ar = vif->ar;
148 bool stopped;
149
150 stopped = __ath6kl_cfg80211_sscan_stop(vif);
151
152 if (!stopped)
153 return;
154
155 cfg80211_sched_scan_stopped(ar->wiphy);
156 }
157
158 static int ath6kl_set_wpa_version(struct ath6kl_vif *vif,
159 enum nl80211_wpa_versions wpa_version)
160 {
161 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version);
162
163 if (!wpa_version) {
164 vif->auth_mode = NONE_AUTH;
165 } else if (wpa_version & NL80211_WPA_VERSION_2) {
166 vif->auth_mode = WPA2_AUTH;
167 } else if (wpa_version & NL80211_WPA_VERSION_1) {
168 vif->auth_mode = WPA_AUTH;
169 } else {
170 ath6kl_err("%s: %u not supported\n", __func__, wpa_version);
171 return -ENOTSUPP;
172 }
173
174 return 0;
175 }
176
177 static int ath6kl_set_auth_type(struct ath6kl_vif *vif,
178 enum nl80211_auth_type auth_type)
179 {
180 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type);
181
182 switch (auth_type) {
183 case NL80211_AUTHTYPE_OPEN_SYSTEM:
184 vif->dot11_auth_mode = OPEN_AUTH;
185 break;
186 case NL80211_AUTHTYPE_SHARED_KEY:
187 vif->dot11_auth_mode = SHARED_AUTH;
188 break;
189 case NL80211_AUTHTYPE_NETWORK_EAP:
190 vif->dot11_auth_mode = LEAP_AUTH;
191 break;
192
193 case NL80211_AUTHTYPE_AUTOMATIC:
194 vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH;
195 break;
196
197 default:
198 ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type);
199 return -ENOTSUPP;
200 }
201
202 return 0;
203 }
204
205 static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast)
206 {
207 u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto;
208 u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len :
209 &vif->grp_crypto_len;
210
211 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n",
212 __func__, cipher, ucast);
213
214 switch (cipher) {
215 case 0:
216 /* our own hack to use value 0 as no crypto used */
217 *ar_cipher = NONE_CRYPT;
218 *ar_cipher_len = 0;
219 break;
220 case WLAN_CIPHER_SUITE_WEP40:
221 *ar_cipher = WEP_CRYPT;
222 *ar_cipher_len = 5;
223 break;
224 case WLAN_CIPHER_SUITE_WEP104:
225 *ar_cipher = WEP_CRYPT;
226 *ar_cipher_len = 13;
227 break;
228 case WLAN_CIPHER_SUITE_TKIP:
229 *ar_cipher = TKIP_CRYPT;
230 *ar_cipher_len = 0;
231 break;
232 case WLAN_CIPHER_SUITE_CCMP:
233 *ar_cipher = AES_CRYPT;
234 *ar_cipher_len = 0;
235 break;
236 case WLAN_CIPHER_SUITE_SMS4:
237 *ar_cipher = WAPI_CRYPT;
238 *ar_cipher_len = 0;
239 break;
240 default:
241 ath6kl_err("cipher 0x%x not supported\n", cipher);
242 return -ENOTSUPP;
243 }
244
245 return 0;
246 }
247
248 static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt)
249 {
250 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt);
251
252 if (key_mgmt == WLAN_AKM_SUITE_PSK) {
253 if (vif->auth_mode == WPA_AUTH)
254 vif->auth_mode = WPA_PSK_AUTH;
255 else if (vif->auth_mode == WPA2_AUTH)
256 vif->auth_mode = WPA2_PSK_AUTH;
257 } else if (key_mgmt == 0x00409600) {
258 if (vif->auth_mode == WPA_AUTH)
259 vif->auth_mode = WPA_AUTH_CCKM;
260 else if (vif->auth_mode == WPA2_AUTH)
261 vif->auth_mode = WPA2_AUTH_CCKM;
262 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) {
263 vif->auth_mode = NONE_AUTH;
264 }
265 }
266
267 static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif)
268 {
269 struct ath6kl *ar = vif->ar;
270
271 if (!test_bit(WMI_READY, &ar->flag)) {
272 ath6kl_err("wmi is not ready\n");
273 return false;
274 }
275
276 if (!test_bit(WLAN_ENABLED, &vif->flags)) {
277 ath6kl_err("wlan disabled\n");
278 return false;
279 }
280
281 return true;
282 }
283
284 static bool ath6kl_is_wpa_ie(const u8 *pos)
285 {
286 return pos[0] == WLAN_EID_WPA && pos[1] >= 4 &&
287 pos[2] == 0x00 && pos[3] == 0x50 &&
288 pos[4] == 0xf2 && pos[5] == 0x01;
289 }
290
291 static bool ath6kl_is_rsn_ie(const u8 *pos)
292 {
293 return pos[0] == WLAN_EID_RSN;
294 }
295
296 static bool ath6kl_is_wps_ie(const u8 *pos)
297 {
298 return (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
299 pos[1] >= 4 &&
300 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 &&
301 pos[5] == 0x04);
302 }
303
304 static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies,
305 size_t ies_len)
306 {
307 struct ath6kl *ar = vif->ar;
308 const u8 *pos;
309 u8 *buf = NULL;
310 size_t len = 0;
311 int ret;
312
313 /*
314 * Clear previously set flag
315 */
316
317 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
318
319 /*
320 * Filter out RSN/WPA IE(s)
321 */
322
323 if (ies && ies_len) {
324 buf = kmalloc(ies_len, GFP_KERNEL);
325 if (buf == NULL)
326 return -ENOMEM;
327 pos = ies;
328
329 while (pos + 1 < ies + ies_len) {
330 if (pos + 2 + pos[1] > ies + ies_len)
331 break;
332 if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) {
333 memcpy(buf + len, pos, 2 + pos[1]);
334 len += 2 + pos[1];
335 }
336
337 if (ath6kl_is_wps_ie(pos))
338 ar->connect_ctrl_flags |= CONNECT_WPS_FLAG;
339
340 pos += 2 + pos[1];
341 }
342 }
343
344 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
345 WMI_FRAME_ASSOC_REQ, buf, len);
346 kfree(buf);
347 return ret;
348 }
349
350 static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type)
351 {
352 switch (type) {
353 case NL80211_IFTYPE_STATION:
354 *nw_type = INFRA_NETWORK;
355 break;
356 case NL80211_IFTYPE_ADHOC:
357 *nw_type = ADHOC_NETWORK;
358 break;
359 case NL80211_IFTYPE_AP:
360 *nw_type = AP_NETWORK;
361 break;
362 case NL80211_IFTYPE_P2P_CLIENT:
363 *nw_type = INFRA_NETWORK;
364 break;
365 case NL80211_IFTYPE_P2P_GO:
366 *nw_type = AP_NETWORK;
367 break;
368 default:
369 ath6kl_err("invalid interface type %u\n", type);
370 return -ENOTSUPP;
371 }
372
373 return 0;
374 }
375
376 static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type,
377 u8 *if_idx, u8 *nw_type)
378 {
379 int i;
380
381 if (ath6kl_nliftype_to_drv_iftype(type, nw_type))
382 return false;
383
384 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) &&
385 ar->num_vif))
386 return false;
387
388 if (type == NL80211_IFTYPE_STATION ||
389 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) {
390 for (i = 0; i < ar->vif_max; i++) {
391 if ((ar->avail_idx_map >> i) & BIT(0)) {
392 *if_idx = i;
393 return true;
394 }
395 }
396 }
397
398 if (type == NL80211_IFTYPE_P2P_CLIENT ||
399 type == NL80211_IFTYPE_P2P_GO) {
400 for (i = ar->max_norm_iface; i < ar->vif_max; i++) {
401 if ((ar->avail_idx_map >> i) & BIT(0)) {
402 *if_idx = i;
403 return true;
404 }
405 }
406 }
407
408 return false;
409 }
410
411 static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
412 struct cfg80211_connect_params *sme)
413 {
414 struct ath6kl *ar = ath6kl_priv(dev);
415 struct ath6kl_vif *vif = netdev_priv(dev);
416 int status;
417 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE;
418
419 ath6kl_cfg80211_sscan_disable(vif);
420
421 vif->sme_state = SME_CONNECTING;
422
423 if (!ath6kl_cfg80211_ready(vif))
424 return -EIO;
425
426 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
427 ath6kl_err("destroy in progress\n");
428 return -EBUSY;
429 }
430
431 if (test_bit(SKIP_SCAN, &ar->flag) &&
432 ((sme->channel && sme->channel->center_freq == 0) ||
433 (sme->bssid && is_zero_ether_addr(sme->bssid)))) {
434 ath6kl_err("SkipScan: channel or bssid invalid\n");
435 return -EINVAL;
436 }
437
438 if (down_interruptible(&ar->sem)) {
439 ath6kl_err("busy, couldn't get access\n");
440 return -ERESTARTSYS;
441 }
442
443 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
444 ath6kl_err("busy, destroy in progress\n");
445 up(&ar->sem);
446 return -EBUSY;
447 }
448
449 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) {
450 /*
451 * sleep until the command queue drains
452 */
453 wait_event_interruptible_timeout(ar->event_wq,
454 ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0,
455 WMI_TIMEOUT);
456 if (signal_pending(current)) {
457 ath6kl_err("cmd queue drain timeout\n");
458 up(&ar->sem);
459 return -EINTR;
460 }
461 }
462
463 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len);
464 if (status) {
465 up(&ar->sem);
466 return status;
467 }
468
469 if (sme->ie == NULL || sme->ie_len == 0)
470 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
471
472 if (test_bit(CONNECTED, &vif->flags) &&
473 vif->ssid_len == sme->ssid_len &&
474 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
475 vif->reconnect_flag = true;
476 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx,
477 vif->req_bssid,
478 vif->ch_hint);
479
480 up(&ar->sem);
481 if (status) {
482 ath6kl_err("wmi_reconnect_cmd failed\n");
483 return -EIO;
484 }
485 return 0;
486 } else if (vif->ssid_len == sme->ssid_len &&
487 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
488 ath6kl_disconnect(vif);
489 }
490
491 memset(vif->ssid, 0, sizeof(vif->ssid));
492 vif->ssid_len = sme->ssid_len;
493 memcpy(vif->ssid, sme->ssid, sme->ssid_len);
494
495 if (sme->channel)
496 vif->ch_hint = sme->channel->center_freq;
497
498 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
499 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid))
500 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid));
501
502 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions);
503
504 status = ath6kl_set_auth_type(vif, sme->auth_type);
505 if (status) {
506 up(&ar->sem);
507 return status;
508 }
509
510 if (sme->crypto.n_ciphers_pairwise)
511 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true);
512 else
513 ath6kl_set_cipher(vif, 0, true);
514
515 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false);
516
517 if (sme->crypto.n_akm_suites)
518 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]);
519
520 if ((sme->key_len) &&
521 (vif->auth_mode == NONE_AUTH) &&
522 (vif->prwise_crypto == WEP_CRYPT)) {
523 struct ath6kl_key *key = NULL;
524
525 if (sme->key_idx > WMI_MAX_KEY_INDEX) {
526 ath6kl_err("key index %d out of bounds\n",
527 sme->key_idx);
528 up(&ar->sem);
529 return -ENOENT;
530 }
531
532 key = &vif->keys[sme->key_idx];
533 key->key_len = sme->key_len;
534 memcpy(key->key, sme->key, key->key_len);
535 key->cipher = vif->prwise_crypto;
536 vif->def_txkey_index = sme->key_idx;
537
538 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx,
539 vif->prwise_crypto,
540 GROUP_USAGE | TX_USAGE,
541 key->key_len,
542 NULL, 0,
543 key->key, KEY_OP_INIT_VAL, NULL,
544 NO_SYNC_WMIFLAG);
545 }
546
547 if (!ar->usr_bss_filter) {
548 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
549 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
550 ALL_BSS_FILTER, 0) != 0) {
551 ath6kl_err("couldn't set bss filtering\n");
552 up(&ar->sem);
553 return -EIO;
554 }
555 }
556
557 vif->nw_type = vif->next_mode;
558
559 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT)
560 nw_subtype = SUBTYPE_P2PCLIENT;
561
562 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
563 "%s: connect called with authmode %d dot11 auth %d"
564 " PW crypto %d PW crypto len %d GRP crypto %d"
565 " GRP crypto len %d channel hint %u\n",
566 __func__,
567 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
568 vif->prwise_crypto_len, vif->grp_crypto,
569 vif->grp_crypto_len, vif->ch_hint);
570
571 vif->reconnect_flag = 0;
572 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
573 vif->dot11_auth_mode, vif->auth_mode,
574 vif->prwise_crypto,
575 vif->prwise_crypto_len,
576 vif->grp_crypto, vif->grp_crypto_len,
577 vif->ssid_len, vif->ssid,
578 vif->req_bssid, vif->ch_hint,
579 ar->connect_ctrl_flags, nw_subtype);
580
581 up(&ar->sem);
582
583 if (status == -EINVAL) {
584 memset(vif->ssid, 0, sizeof(vif->ssid));
585 vif->ssid_len = 0;
586 ath6kl_err("invalid request\n");
587 return -ENOENT;
588 } else if (status) {
589 ath6kl_err("ath6kl_wmi_connect_cmd failed\n");
590 return -EIO;
591 }
592
593 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) &&
594 ((vif->auth_mode == WPA_PSK_AUTH)
595 || (vif->auth_mode == WPA2_PSK_AUTH))) {
596 mod_timer(&vif->disconnect_timer,
597 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL));
598 }
599
600 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD;
601 set_bit(CONNECT_PEND, &vif->flags);
602
603 return 0;
604 }
605
606 static struct cfg80211_bss *
607 ath6kl_add_bss_if_needed(struct ath6kl_vif *vif,
608 enum network_type nw_type,
609 const u8 *bssid,
610 struct ieee80211_channel *chan,
611 const u8 *beacon_ie,
612 size_t beacon_ie_len)
613 {
614 struct ath6kl *ar = vif->ar;
615 struct cfg80211_bss *bss;
616 u16 cap_mask, cap_val;
617 u8 *ie;
618
619 if (nw_type & ADHOC_NETWORK) {
620 cap_mask = WLAN_CAPABILITY_IBSS;
621 cap_val = WLAN_CAPABILITY_IBSS;
622 } else {
623 cap_mask = WLAN_CAPABILITY_ESS;
624 cap_val = WLAN_CAPABILITY_ESS;
625 }
626
627 bss = cfg80211_get_bss(ar->wiphy, chan, bssid,
628 vif->ssid, vif->ssid_len,
629 cap_mask, cap_val);
630 if (bss == NULL) {
631 /*
632 * Since cfg80211 may not yet know about the BSS,
633 * generate a partial entry until the first BSS info
634 * event becomes available.
635 *
636 * Prepend SSID element since it is not included in the Beacon
637 * IEs from the target.
638 */
639 ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL);
640 if (ie == NULL)
641 return NULL;
642 ie[0] = WLAN_EID_SSID;
643 ie[1] = vif->ssid_len;
644 memcpy(ie + 2, vif->ssid, vif->ssid_len);
645 memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len);
646 bss = cfg80211_inform_bss(ar->wiphy, chan,
647 bssid, 0, cap_val, 100,
648 ie, 2 + vif->ssid_len + beacon_ie_len,
649 0, GFP_KERNEL);
650 if (bss)
651 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "added bss %pM to "
652 "cfg80211\n", bssid);
653 kfree(ie);
654 } else
655 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n");
656
657 return bss;
658 }
659
660 void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel,
661 u8 *bssid, u16 listen_intvl,
662 u16 beacon_intvl,
663 enum network_type nw_type,
664 u8 beacon_ie_len, u8 assoc_req_len,
665 u8 assoc_resp_len, u8 *assoc_info)
666 {
667 struct ieee80211_channel *chan;
668 struct ath6kl *ar = vif->ar;
669 struct cfg80211_bss *bss;
670
671 /* capinfo + listen interval */
672 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16);
673
674 /* capinfo + status code + associd */
675 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16);
676
677 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset;
678 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len +
679 assoc_resp_ie_offset;
680
681 assoc_req_len -= assoc_req_ie_offset;
682 assoc_resp_len -= assoc_resp_ie_offset;
683
684 /*
685 * Store Beacon interval here; DTIM period will be available only once
686 * a Beacon frame from the AP is seen.
687 */
688 vif->assoc_bss_beacon_int = beacon_intvl;
689 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags);
690
691 if (nw_type & ADHOC_NETWORK) {
692 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) {
693 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
694 "%s: ath6k not in ibss mode\n", __func__);
695 return;
696 }
697 }
698
699 if (nw_type & INFRA_NETWORK) {
700 if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
701 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
702 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
703 "%s: ath6k not in station mode\n", __func__);
704 return;
705 }
706 }
707
708 chan = ieee80211_get_channel(ar->wiphy, (int) channel);
709
710 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan,
711 assoc_info, beacon_ie_len);
712 if (!bss) {
713 ath6kl_err("could not add cfg80211 bss entry\n");
714 return;
715 }
716
717 if (nw_type & ADHOC_NETWORK) {
718 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n",
719 nw_type & ADHOC_CREATOR ? "creator" : "joiner");
720 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL);
721 cfg80211_put_bss(bss);
722 return;
723 }
724
725 if (vif->sme_state == SME_CONNECTING) {
726 /* inform connect result to cfg80211 */
727 vif->sme_state = SME_CONNECTED;
728 cfg80211_connect_result(vif->ndev, bssid,
729 assoc_req_ie, assoc_req_len,
730 assoc_resp_ie, assoc_resp_len,
731 WLAN_STATUS_SUCCESS, GFP_KERNEL);
732 cfg80211_put_bss(bss);
733 } else if (vif->sme_state == SME_CONNECTED) {
734 /* inform roam event to cfg80211 */
735 cfg80211_roamed_bss(vif->ndev, bss, assoc_req_ie, assoc_req_len,
736 assoc_resp_ie, assoc_resp_len, GFP_KERNEL);
737 }
738 }
739
740 static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy,
741 struct net_device *dev, u16 reason_code)
742 {
743 struct ath6kl *ar = ath6kl_priv(dev);
744 struct ath6kl_vif *vif = netdev_priv(dev);
745
746 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__,
747 reason_code);
748
749 ath6kl_cfg80211_sscan_disable(vif);
750
751 if (!ath6kl_cfg80211_ready(vif))
752 return -EIO;
753
754 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
755 ath6kl_err("busy, destroy in progress\n");
756 return -EBUSY;
757 }
758
759 if (down_interruptible(&ar->sem)) {
760 ath6kl_err("busy, couldn't get access\n");
761 return -ERESTARTSYS;
762 }
763
764 vif->reconnect_flag = 0;
765 ath6kl_disconnect(vif);
766 memset(vif->ssid, 0, sizeof(vif->ssid));
767 vif->ssid_len = 0;
768
769 if (!test_bit(SKIP_SCAN, &ar->flag))
770 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
771
772 up(&ar->sem);
773
774 vif->sme_state = SME_DISCONNECTED;
775
776 return 0;
777 }
778
779 void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason,
780 u8 *bssid, u8 assoc_resp_len,
781 u8 *assoc_info, u16 proto_reason)
782 {
783 struct ath6kl *ar = vif->ar;
784
785 if (vif->scan_req) {
786 cfg80211_scan_done(vif->scan_req, true);
787 vif->scan_req = NULL;
788 }
789
790 if (vif->nw_type & ADHOC_NETWORK) {
791 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) {
792 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
793 "%s: ath6k not in ibss mode\n", __func__);
794 return;
795 }
796 memset(bssid, 0, ETH_ALEN);
797 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL);
798 return;
799 }
800
801 if (vif->nw_type & INFRA_NETWORK) {
802 if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
803 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
804 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
805 "%s: ath6k not in station mode\n", __func__);
806 return;
807 }
808 }
809
810 /*
811 * Send a disconnect command to target when a disconnect event is
812 * received with reason code other than 3 (DISCONNECT_CMD - disconnect
813 * request from host) to make the firmware stop trying to connect even
814 * after giving disconnect event. There will be one more disconnect
815 * event for this disconnect command with reason code DISCONNECT_CMD
816 * which will be notified to cfg80211.
817 */
818
819 if (reason != DISCONNECT_CMD) {
820 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
821 return;
822 }
823
824 clear_bit(CONNECT_PEND, &vif->flags);
825
826 if (vif->sme_state == SME_CONNECTING) {
827 cfg80211_connect_result(vif->ndev,
828 bssid, NULL, 0,
829 NULL, 0,
830 WLAN_STATUS_UNSPECIFIED_FAILURE,
831 GFP_KERNEL);
832 } else if (vif->sme_state == SME_CONNECTED) {
833 cfg80211_disconnected(vif->ndev, reason,
834 NULL, 0, GFP_KERNEL);
835 }
836
837 vif->sme_state = SME_DISCONNECTED;
838 }
839
840 static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
841 struct cfg80211_scan_request *request)
842 {
843 struct ath6kl *ar = ath6kl_priv(ndev);
844 struct ath6kl_vif *vif = netdev_priv(ndev);
845 s8 n_channels = 0;
846 u16 *channels = NULL;
847 int ret = 0;
848 u32 force_fg_scan = 0;
849
850 if (!ath6kl_cfg80211_ready(vif))
851 return -EIO;
852
853 ath6kl_cfg80211_sscan_disable(vif);
854
855 if (!ar->usr_bss_filter) {
856 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
857 ret = ath6kl_wmi_bssfilter_cmd(
858 ar->wmi, vif->fw_vif_idx,
859 (test_bit(CONNECTED, &vif->flags) ?
860 ALL_BUT_BSS_FILTER : ALL_BSS_FILTER), 0);
861 if (ret) {
862 ath6kl_err("couldn't set bss filtering\n");
863 return ret;
864 }
865 }
866
867 if (request->n_ssids && request->ssids[0].ssid_len) {
868 u8 i;
869
870 if (request->n_ssids > (MAX_PROBED_SSID_INDEX - 1))
871 request->n_ssids = MAX_PROBED_SSID_INDEX - 1;
872
873 for (i = 0; i < request->n_ssids; i++)
874 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
875 i + 1, SPECIFIC_SSID_FLAG,
876 request->ssids[i].ssid_len,
877 request->ssids[i].ssid);
878 }
879
880 /*
881 * FIXME: we should clear the IE in fw if it's not set so just
882 * remove the check altogether
883 */
884 if (request->ie) {
885 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
886 WMI_FRAME_PROBE_REQ,
887 request->ie, request->ie_len);
888 if (ret) {
889 ath6kl_err("failed to set Probe Request appie for "
890 "scan");
891 return ret;
892 }
893 }
894
895 /*
896 * Scan only the requested channels if the request specifies a set of
897 * channels. If the list is longer than the target supports, do not
898 * configure the list and instead, scan all available channels.
899 */
900 if (request->n_channels > 0 &&
901 request->n_channels <= WMI_MAX_CHANNELS) {
902 u8 i;
903
904 n_channels = request->n_channels;
905
906 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL);
907 if (channels == NULL) {
908 ath6kl_warn("failed to set scan channels, "
909 "scan all channels");
910 n_channels = 0;
911 }
912
913 for (i = 0; i < n_channels; i++)
914 channels[i] = request->channels[i]->center_freq;
915 }
916
917 if (test_bit(CONNECTED, &vif->flags))
918 force_fg_scan = 1;
919
920 if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
921 ar->fw_capabilities)) {
922 /*
923 * If capable of doing P2P mgmt operations using
924 * station interface, send additional information like
925 * supported rates to advertise and xmit rates for
926 * probe requests
927 */
928 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx,
929 WMI_LONG_SCAN, force_fg_scan,
930 false, 0, 0, n_channels,
931 channels, request->no_cck,
932 request->rates);
933 } else {
934 ret = ath6kl_wmi_startscan_cmd(ar->wmi, vif->fw_vif_idx,
935 WMI_LONG_SCAN, force_fg_scan,
936 false, 0, 0, n_channels,
937 channels);
938 }
939 if (ret)
940 ath6kl_err("wmi_startscan_cmd failed\n");
941 else
942 vif->scan_req = request;
943
944 kfree(channels);
945
946 return ret;
947 }
948
949 void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted)
950 {
951 struct ath6kl *ar = vif->ar;
952 int i;
953
954 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__,
955 aborted ? " aborted" : "");
956
957 if (!vif->scan_req)
958 return;
959
960 if (aborted)
961 goto out;
962
963 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) {
964 for (i = 0; i < vif->scan_req->n_ssids; i++) {
965 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
966 i + 1, DISABLE_SSID_FLAG,
967 0, NULL);
968 }
969 }
970
971 out:
972 cfg80211_scan_done(vif->scan_req, aborted);
973 vif->scan_req = NULL;
974 }
975
976 static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
977 u8 key_index, bool pairwise,
978 const u8 *mac_addr,
979 struct key_params *params)
980 {
981 struct ath6kl *ar = ath6kl_priv(ndev);
982 struct ath6kl_vif *vif = netdev_priv(ndev);
983 struct ath6kl_key *key = NULL;
984 int seq_len;
985 u8 key_usage;
986 u8 key_type;
987
988 if (!ath6kl_cfg80211_ready(vif))
989 return -EIO;
990
991 if (params->cipher == CCKM_KRK_CIPHER_SUITE) {
992 if (params->key_len != WMI_KRK_LEN)
993 return -EINVAL;
994 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx,
995 params->key);
996 }
997
998 if (key_index > WMI_MAX_KEY_INDEX) {
999 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1000 "%s: key index %d out of bounds\n", __func__,
1001 key_index);
1002 return -ENOENT;
1003 }
1004
1005 key = &vif->keys[key_index];
1006 memset(key, 0, sizeof(struct ath6kl_key));
1007
1008 if (pairwise)
1009 key_usage = PAIRWISE_USAGE;
1010 else
1011 key_usage = GROUP_USAGE;
1012
1013 seq_len = params->seq_len;
1014 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 &&
1015 seq_len > ATH6KL_KEY_SEQ_LEN) {
1016 /* Only first half of the WPI PN is configured */
1017 seq_len = ATH6KL_KEY_SEQ_LEN;
1018 }
1019 if (params->key_len > WLAN_MAX_KEY_LEN ||
1020 seq_len > sizeof(key->seq))
1021 return -EINVAL;
1022
1023 key->key_len = params->key_len;
1024 memcpy(key->key, params->key, key->key_len);
1025 key->seq_len = seq_len;
1026 memcpy(key->seq, params->seq, key->seq_len);
1027 key->cipher = params->cipher;
1028
1029 switch (key->cipher) {
1030 case WLAN_CIPHER_SUITE_WEP40:
1031 case WLAN_CIPHER_SUITE_WEP104:
1032 key_type = WEP_CRYPT;
1033 break;
1034
1035 case WLAN_CIPHER_SUITE_TKIP:
1036 key_type = TKIP_CRYPT;
1037 break;
1038
1039 case WLAN_CIPHER_SUITE_CCMP:
1040 key_type = AES_CRYPT;
1041 break;
1042 case WLAN_CIPHER_SUITE_SMS4:
1043 key_type = WAPI_CRYPT;
1044 break;
1045
1046 default:
1047 return -ENOTSUPP;
1048 }
1049
1050 if (((vif->auth_mode == WPA_PSK_AUTH)
1051 || (vif->auth_mode == WPA2_PSK_AUTH))
1052 && (key_usage & GROUP_USAGE))
1053 del_timer(&vif->disconnect_timer);
1054
1055 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1056 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n",
1057 __func__, key_index, key->key_len, key_type,
1058 key_usage, key->seq_len);
1059
1060 if (vif->nw_type == AP_NETWORK && !pairwise &&
1061 (key_type == TKIP_CRYPT || key_type == AES_CRYPT ||
1062 key_type == WAPI_CRYPT) && params) {
1063 ar->ap_mode_bkey.valid = true;
1064 ar->ap_mode_bkey.key_index = key_index;
1065 ar->ap_mode_bkey.key_type = key_type;
1066 ar->ap_mode_bkey.key_len = key->key_len;
1067 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len);
1068 if (!test_bit(CONNECTED, &vif->flags)) {
1069 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay initial group "
1070 "key configuration until AP mode has been "
1071 "started\n");
1072 /*
1073 * The key will be set in ath6kl_connect_ap_mode() once
1074 * the connected event is received from the target.
1075 */
1076 return 0;
1077 }
1078 }
1079
1080 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT &&
1081 !test_bit(CONNECTED, &vif->flags)) {
1082 /*
1083 * Store the key locally so that it can be re-configured after
1084 * the AP mode has properly started
1085 * (ath6kl_install_statioc_wep_keys).
1086 */
1087 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "Delay WEP key configuration "
1088 "until AP mode has been started\n");
1089 vif->wep_key_list[key_index].key_len = key->key_len;
1090 memcpy(vif->wep_key_list[key_index].key, key->key,
1091 key->key_len);
1092 return 0;
1093 }
1094
1095 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index,
1096 key_type, key_usage, key->key_len,
1097 key->seq, key->seq_len, key->key,
1098 KEY_OP_INIT_VAL,
1099 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG);
1100 }
1101
1102 static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
1103 u8 key_index, bool pairwise,
1104 const u8 *mac_addr)
1105 {
1106 struct ath6kl *ar = ath6kl_priv(ndev);
1107 struct ath6kl_vif *vif = netdev_priv(ndev);
1108
1109 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1110
1111 if (!ath6kl_cfg80211_ready(vif))
1112 return -EIO;
1113
1114 if (key_index > WMI_MAX_KEY_INDEX) {
1115 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1116 "%s: key index %d out of bounds\n", __func__,
1117 key_index);
1118 return -ENOENT;
1119 }
1120
1121 if (!vif->keys[key_index].key_len) {
1122 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1123 "%s: index %d is empty\n", __func__, key_index);
1124 return 0;
1125 }
1126
1127 vif->keys[key_index].key_len = 0;
1128
1129 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index);
1130 }
1131
1132 static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
1133 u8 key_index, bool pairwise,
1134 const u8 *mac_addr, void *cookie,
1135 void (*callback) (void *cookie,
1136 struct key_params *))
1137 {
1138 struct ath6kl_vif *vif = netdev_priv(ndev);
1139 struct ath6kl_key *key = NULL;
1140 struct key_params params;
1141
1142 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1143
1144 if (!ath6kl_cfg80211_ready(vif))
1145 return -EIO;
1146
1147 if (key_index > WMI_MAX_KEY_INDEX) {
1148 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1149 "%s: key index %d out of bounds\n", __func__,
1150 key_index);
1151 return -ENOENT;
1152 }
1153
1154 key = &vif->keys[key_index];
1155 memset(&params, 0, sizeof(params));
1156 params.cipher = key->cipher;
1157 params.key_len = key->key_len;
1158 params.seq_len = key->seq_len;
1159 params.seq = key->seq;
1160 params.key = key->key;
1161
1162 callback(cookie, &params);
1163
1164 return key->key_len ? 0 : -ENOENT;
1165 }
1166
1167 static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy,
1168 struct net_device *ndev,
1169 u8 key_index, bool unicast,
1170 bool multicast)
1171 {
1172 struct ath6kl *ar = ath6kl_priv(ndev);
1173 struct ath6kl_vif *vif = netdev_priv(ndev);
1174 struct ath6kl_key *key = NULL;
1175 u8 key_usage;
1176 enum crypto_type key_type = NONE_CRYPT;
1177
1178 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1179
1180 if (!ath6kl_cfg80211_ready(vif))
1181 return -EIO;
1182
1183 if (key_index > WMI_MAX_KEY_INDEX) {
1184 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1185 "%s: key index %d out of bounds\n",
1186 __func__, key_index);
1187 return -ENOENT;
1188 }
1189
1190 if (!vif->keys[key_index].key_len) {
1191 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n",
1192 __func__, key_index);
1193 return -EINVAL;
1194 }
1195
1196 vif->def_txkey_index = key_index;
1197 key = &vif->keys[vif->def_txkey_index];
1198 key_usage = GROUP_USAGE;
1199 if (vif->prwise_crypto == WEP_CRYPT)
1200 key_usage |= TX_USAGE;
1201 if (unicast)
1202 key_type = vif->prwise_crypto;
1203 if (multicast)
1204 key_type = vif->grp_crypto;
1205
1206 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags))
1207 return 0; /* Delay until AP mode has been started */
1208
1209 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx,
1210 vif->def_txkey_index,
1211 key_type, key_usage,
1212 key->key_len, key->seq, key->seq_len,
1213 key->key,
1214 KEY_OP_INIT_VAL, NULL,
1215 SYNC_BOTH_WMIFLAG);
1216 }
1217
1218 void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid,
1219 bool ismcast)
1220 {
1221 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1222 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast);
1223
1224 cfg80211_michael_mic_failure(vif->ndev, vif->bssid,
1225 (ismcast ? NL80211_KEYTYPE_GROUP :
1226 NL80211_KEYTYPE_PAIRWISE), keyid, NULL,
1227 GFP_KERNEL);
1228 }
1229
1230 static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1231 {
1232 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1233 struct ath6kl_vif *vif;
1234 int ret;
1235
1236 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__,
1237 changed);
1238
1239 vif = ath6kl_vif_first(ar);
1240 if (!vif)
1241 return -EIO;
1242
1243 if (!ath6kl_cfg80211_ready(vif))
1244 return -EIO;
1245
1246 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1247 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold);
1248 if (ret != 0) {
1249 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n");
1250 return -EIO;
1251 }
1252 }
1253
1254 return 0;
1255 }
1256
1257 /*
1258 * The type nl80211_tx_power_setting replaces the following
1259 * data type from 2.6.36 onwards
1260 */
1261 static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy,
1262 enum nl80211_tx_power_setting type,
1263 int mbm)
1264 {
1265 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1266 struct ath6kl_vif *vif;
1267 u8 ath6kl_dbm;
1268 int dbm = MBM_TO_DBM(mbm);
1269
1270 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__,
1271 type, dbm);
1272
1273 vif = ath6kl_vif_first(ar);
1274 if (!vif)
1275 return -EIO;
1276
1277 if (!ath6kl_cfg80211_ready(vif))
1278 return -EIO;
1279
1280 switch (type) {
1281 case NL80211_TX_POWER_AUTOMATIC:
1282 return 0;
1283 case NL80211_TX_POWER_LIMITED:
1284 ar->tx_pwr = ath6kl_dbm = dbm;
1285 break;
1286 default:
1287 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n",
1288 __func__, type);
1289 return -EOPNOTSUPP;
1290 }
1291
1292 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, ath6kl_dbm);
1293
1294 return 0;
1295 }
1296
1297 static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm)
1298 {
1299 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1300 struct ath6kl_vif *vif;
1301
1302 vif = ath6kl_vif_first(ar);
1303 if (!vif)
1304 return -EIO;
1305
1306 if (!ath6kl_cfg80211_ready(vif))
1307 return -EIO;
1308
1309 if (test_bit(CONNECTED, &vif->flags)) {
1310 ar->tx_pwr = 0;
1311
1312 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) {
1313 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n");
1314 return -EIO;
1315 }
1316
1317 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0,
1318 5 * HZ);
1319
1320 if (signal_pending(current)) {
1321 ath6kl_err("target did not respond\n");
1322 return -EINTR;
1323 }
1324 }
1325
1326 *dbm = ar->tx_pwr;
1327 return 0;
1328 }
1329
1330 static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
1331 struct net_device *dev,
1332 bool pmgmt, int timeout)
1333 {
1334 struct ath6kl *ar = ath6kl_priv(dev);
1335 struct wmi_power_mode_cmd mode;
1336 struct ath6kl_vif *vif = netdev_priv(dev);
1337
1338 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",
1339 __func__, pmgmt, timeout);
1340
1341 if (!ath6kl_cfg80211_ready(vif))
1342 return -EIO;
1343
1344 if (pmgmt) {
1345 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);
1346 mode.pwr_mode = REC_POWER;
1347 } else {
1348 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);
1349 mode.pwr_mode = MAX_PERF_POWER;
1350 }
1351
1352 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx,
1353 mode.pwr_mode) != 0) {
1354 ath6kl_err("wmi_powermode_cmd failed\n");
1355 return -EIO;
1356 }
1357
1358 return 0;
1359 }
1360
1361 static struct net_device *ath6kl_cfg80211_add_iface(struct wiphy *wiphy,
1362 char *name,
1363 enum nl80211_iftype type,
1364 u32 *flags,
1365 struct vif_params *params)
1366 {
1367 struct ath6kl *ar = wiphy_priv(wiphy);
1368 struct net_device *ndev;
1369 u8 if_idx, nw_type;
1370
1371 if (ar->num_vif == ar->vif_max) {
1372 ath6kl_err("Reached maximum number of supported vif\n");
1373 return ERR_PTR(-EINVAL);
1374 }
1375
1376 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) {
1377 ath6kl_err("Not a supported interface type\n");
1378 return ERR_PTR(-EINVAL);
1379 }
1380
1381 ndev = ath6kl_interface_add(ar, name, type, if_idx, nw_type);
1382 if (!ndev)
1383 return ERR_PTR(-ENOMEM);
1384
1385 ar->num_vif++;
1386
1387 return ndev;
1388 }
1389
1390 static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy,
1391 struct net_device *ndev)
1392 {
1393 struct ath6kl *ar = wiphy_priv(wiphy);
1394 struct ath6kl_vif *vif = netdev_priv(ndev);
1395
1396 spin_lock_bh(&ar->list_lock);
1397 list_del(&vif->list);
1398 spin_unlock_bh(&ar->list_lock);
1399
1400 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag));
1401
1402 ath6kl_cfg80211_vif_cleanup(vif);
1403
1404 return 0;
1405 }
1406
1407 static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
1408 struct net_device *ndev,
1409 enum nl80211_iftype type, u32 *flags,
1410 struct vif_params *params)
1411 {
1412 struct ath6kl_vif *vif = netdev_priv(ndev);
1413
1414 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
1415
1416 switch (type) {
1417 case NL80211_IFTYPE_STATION:
1418 vif->next_mode = INFRA_NETWORK;
1419 break;
1420 case NL80211_IFTYPE_ADHOC:
1421 vif->next_mode = ADHOC_NETWORK;
1422 break;
1423 case NL80211_IFTYPE_AP:
1424 vif->next_mode = AP_NETWORK;
1425 break;
1426 case NL80211_IFTYPE_P2P_CLIENT:
1427 vif->next_mode = INFRA_NETWORK;
1428 break;
1429 case NL80211_IFTYPE_P2P_GO:
1430 vif->next_mode = AP_NETWORK;
1431 break;
1432 default:
1433 ath6kl_err("invalid interface type %u\n", type);
1434 return -EOPNOTSUPP;
1435 }
1436
1437 vif->wdev.iftype = type;
1438
1439 return 0;
1440 }
1441
1442 static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,
1443 struct net_device *dev,
1444 struct cfg80211_ibss_params *ibss_param)
1445 {
1446 struct ath6kl *ar = ath6kl_priv(dev);
1447 struct ath6kl_vif *vif = netdev_priv(dev);
1448 int status;
1449
1450 if (!ath6kl_cfg80211_ready(vif))
1451 return -EIO;
1452
1453 vif->ssid_len = ibss_param->ssid_len;
1454 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len);
1455
1456 if (ibss_param->channel)
1457 vif->ch_hint = ibss_param->channel->center_freq;
1458
1459 if (ibss_param->channel_fixed) {
1460 /*
1461 * TODO: channel_fixed: The channel should be fixed, do not
1462 * search for IBSSs to join on other channels. Target
1463 * firmware does not support this feature, needs to be
1464 * updated.
1465 */
1466 return -EOPNOTSUPP;
1467 }
1468
1469 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
1470 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))
1471 memcpy(vif->req_bssid, ibss_param->bssid,
1472 sizeof(vif->req_bssid));
1473
1474 ath6kl_set_wpa_version(vif, 0);
1475
1476 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM);
1477 if (status)
1478 return status;
1479
1480 if (ibss_param->privacy) {
1481 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true);
1482 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false);
1483 } else {
1484 ath6kl_set_cipher(vif, 0, true);
1485 ath6kl_set_cipher(vif, 0, false);
1486 }
1487
1488 vif->nw_type = vif->next_mode;
1489
1490 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1491 "%s: connect called with authmode %d dot11 auth %d"
1492 " PW crypto %d PW crypto len %d GRP crypto %d"
1493 " GRP crypto len %d channel hint %u\n",
1494 __func__,
1495 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
1496 vif->prwise_crypto_len, vif->grp_crypto,
1497 vif->grp_crypto_len, vif->ch_hint);
1498
1499 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
1500 vif->dot11_auth_mode, vif->auth_mode,
1501 vif->prwise_crypto,
1502 vif->prwise_crypto_len,
1503 vif->grp_crypto, vif->grp_crypto_len,
1504 vif->ssid_len, vif->ssid,
1505 vif->req_bssid, vif->ch_hint,
1506 ar->connect_ctrl_flags, SUBTYPE_NONE);
1507 set_bit(CONNECT_PEND, &vif->flags);
1508
1509 return 0;
1510 }
1511
1512 static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,
1513 struct net_device *dev)
1514 {
1515 struct ath6kl_vif *vif = netdev_priv(dev);
1516
1517 if (!ath6kl_cfg80211_ready(vif))
1518 return -EIO;
1519
1520 ath6kl_disconnect(vif);
1521 memset(vif->ssid, 0, sizeof(vif->ssid));
1522 vif->ssid_len = 0;
1523
1524 return 0;
1525 }
1526
1527 static const u32 cipher_suites[] = {
1528 WLAN_CIPHER_SUITE_WEP40,
1529 WLAN_CIPHER_SUITE_WEP104,
1530 WLAN_CIPHER_SUITE_TKIP,
1531 WLAN_CIPHER_SUITE_CCMP,
1532 CCKM_KRK_CIPHER_SUITE,
1533 WLAN_CIPHER_SUITE_SMS4,
1534 };
1535
1536 static bool is_rate_legacy(s32 rate)
1537 {
1538 static const s32 legacy[] = { 1000, 2000, 5500, 11000,
1539 6000, 9000, 12000, 18000, 24000,
1540 36000, 48000, 54000
1541 };
1542 u8 i;
1543
1544 for (i = 0; i < ARRAY_SIZE(legacy); i++)
1545 if (rate == legacy[i])
1546 return true;
1547
1548 return false;
1549 }
1550
1551 static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
1552 {
1553 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
1554 52000, 58500, 65000, 72200
1555 };
1556 u8 i;
1557
1558 for (i = 0; i < ARRAY_SIZE(ht20); i++) {
1559 if (rate == ht20[i]) {
1560 if (i == ARRAY_SIZE(ht20) - 1)
1561 /* last rate uses sgi */
1562 *sgi = true;
1563 else
1564 *sgi = false;
1565
1566 *mcs = i;
1567 return true;
1568 }
1569 }
1570 return false;
1571 }
1572
1573 static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
1574 {
1575 static const s32 ht40[] = { 13500, 27000, 40500, 54000,
1576 81000, 108000, 121500, 135000,
1577 150000
1578 };
1579 u8 i;
1580
1581 for (i = 0; i < ARRAY_SIZE(ht40); i++) {
1582 if (rate == ht40[i]) {
1583 if (i == ARRAY_SIZE(ht40) - 1)
1584 /* last rate uses sgi */
1585 *sgi = true;
1586 else
1587 *sgi = false;
1588
1589 *mcs = i;
1590 return true;
1591 }
1592 }
1593
1594 return false;
1595 }
1596
1597 static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,
1598 u8 *mac, struct station_info *sinfo)
1599 {
1600 struct ath6kl *ar = ath6kl_priv(dev);
1601 struct ath6kl_vif *vif = netdev_priv(dev);
1602 long left;
1603 bool sgi;
1604 s32 rate;
1605 int ret;
1606 u8 mcs;
1607
1608 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0)
1609 return -ENOENT;
1610
1611 if (down_interruptible(&ar->sem))
1612 return -EBUSY;
1613
1614 set_bit(STATS_UPDATE_PEND, &vif->flags);
1615
1616 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx);
1617
1618 if (ret != 0) {
1619 up(&ar->sem);
1620 return -EIO;
1621 }
1622
1623 left = wait_event_interruptible_timeout(ar->event_wq,
1624 !test_bit(STATS_UPDATE_PEND,
1625 &vif->flags),
1626 WMI_TIMEOUT);
1627
1628 up(&ar->sem);
1629
1630 if (left == 0)
1631 return -ETIMEDOUT;
1632 else if (left < 0)
1633 return left;
1634
1635 if (vif->target_stats.rx_byte) {
1636 sinfo->rx_bytes = vif->target_stats.rx_byte;
1637 sinfo->filled |= STATION_INFO_RX_BYTES;
1638 sinfo->rx_packets = vif->target_stats.rx_pkt;
1639 sinfo->filled |= STATION_INFO_RX_PACKETS;
1640 }
1641
1642 if (vif->target_stats.tx_byte) {
1643 sinfo->tx_bytes = vif->target_stats.tx_byte;
1644 sinfo->filled |= STATION_INFO_TX_BYTES;
1645 sinfo->tx_packets = vif->target_stats.tx_pkt;
1646 sinfo->filled |= STATION_INFO_TX_PACKETS;
1647 }
1648
1649 sinfo->signal = vif->target_stats.cs_rssi;
1650 sinfo->filled |= STATION_INFO_SIGNAL;
1651
1652 rate = vif->target_stats.tx_ucast_rate;
1653
1654 if (is_rate_legacy(rate)) {
1655 sinfo->txrate.legacy = rate / 100;
1656 } else if (is_rate_ht20(rate, &mcs, &sgi)) {
1657 if (sgi) {
1658 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1659 sinfo->txrate.mcs = mcs - 1;
1660 } else {
1661 sinfo->txrate.mcs = mcs;
1662 }
1663
1664 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1665 } else if (is_rate_ht40(rate, &mcs, &sgi)) {
1666 if (sgi) {
1667 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1668 sinfo->txrate.mcs = mcs - 1;
1669 } else {
1670 sinfo->txrate.mcs = mcs;
1671 }
1672
1673 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
1674 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1675 } else {
1676 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1677 "invalid rate from stats: %d\n", rate);
1678 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE);
1679 return 0;
1680 }
1681
1682 sinfo->filled |= STATION_INFO_TX_BITRATE;
1683
1684 if (test_bit(CONNECTED, &vif->flags) &&
1685 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) &&
1686 vif->nw_type == INFRA_NETWORK) {
1687 sinfo->filled |= STATION_INFO_BSS_PARAM;
1688 sinfo->bss_param.flags = 0;
1689 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period;
1690 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int;
1691 }
1692
1693 return 0;
1694 }
1695
1696 static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1697 struct cfg80211_pmksa *pmksa)
1698 {
1699 struct ath6kl *ar = ath6kl_priv(netdev);
1700 struct ath6kl_vif *vif = netdev_priv(netdev);
1701
1702 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1703 pmksa->pmkid, true);
1704 }
1705
1706 static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1707 struct cfg80211_pmksa *pmksa)
1708 {
1709 struct ath6kl *ar = ath6kl_priv(netdev);
1710 struct ath6kl_vif *vif = netdev_priv(netdev);
1711
1712 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1713 pmksa->pmkid, false);
1714 }
1715
1716 static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
1717 {
1718 struct ath6kl *ar = ath6kl_priv(netdev);
1719 struct ath6kl_vif *vif = netdev_priv(netdev);
1720
1721 if (test_bit(CONNECTED, &vif->flags))
1722 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx,
1723 vif->bssid, NULL, false);
1724 return 0;
1725 }
1726
1727 static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif,
1728 struct cfg80211_wowlan *wow, u32 *filter)
1729 {
1730 int ret, pos;
1731 u8 mask[WOW_MASK_SIZE];
1732 u16 i;
1733
1734 /* Configure the patterns that we received from the user. */
1735 for (i = 0; i < wow->n_patterns; i++) {
1736
1737 /*
1738 * Convert given nl80211 specific mask value to equivalent
1739 * driver specific mask value and send it to the chip along
1740 * with patterns. For example, If the mask value defined in
1741 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010),
1742 * then equivalent driver specific mask value is
1743 * "0xFF 0x00 0xFF 0x00".
1744 */
1745 memset(&mask, 0, sizeof(mask));
1746 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) {
1747 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8)))
1748 mask[pos] = 0xFF;
1749 }
1750 /*
1751 * Note: Pattern's offset is not passed as part of wowlan
1752 * parameter from CFG layer. So it's always passed as ZERO
1753 * to the firmware. It means, given WOW patterns are always
1754 * matched from the first byte of received pkt in the firmware.
1755 */
1756 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1757 vif->fw_vif_idx, WOW_LIST_ID,
1758 wow->patterns[i].pattern_len,
1759 0 /* pattern offset */,
1760 wow->patterns[i].pattern, mask);
1761 if (ret)
1762 return ret;
1763 }
1764
1765 if (wow->disconnect)
1766 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC;
1767
1768 if (wow->magic_pkt)
1769 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET;
1770
1771 if (wow->gtk_rekey_failure)
1772 *filter |= WOW_FILTER_OPTION_GTK_ERROR;
1773
1774 if (wow->eap_identity_req)
1775 *filter |= WOW_FILTER_OPTION_EAP_REQ;
1776
1777 if (wow->four_way_handshake)
1778 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS;
1779
1780 return 0;
1781 }
1782
1783 static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif)
1784 {
1785 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00,
1786 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1787 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1788 0x00, 0x08 };
1789 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00,
1790 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1791 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1792 0x00, 0x7f };
1793 u8 unicst_offset = 0;
1794 static const u8 arp_pattern[] = { 0x08, 0x06 };
1795 static const u8 arp_mask[] = { 0xff, 0xff };
1796 u8 arp_offset = 20;
1797 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
1798 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
1799 u8 discvr_offset = 38;
1800 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff,
1801 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1802 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00,
1803 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1804 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1805 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ };
1806 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff,
1807 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1808 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
1809 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1810 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1811 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ };
1812 u8 dhcp_offset = 0;
1813 int ret;
1814
1815 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */
1816 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1817 vif->fw_vif_idx, WOW_LIST_ID,
1818 sizeof(unicst_pattern), unicst_offset,
1819 unicst_pattern, unicst_mask);
1820 if (ret) {
1821 ath6kl_err("failed to add WOW unicast IP pattern\n");
1822 return ret;
1823 }
1824
1825 /* Setup all ARP pkt pattern */
1826 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1827 vif->fw_vif_idx, WOW_LIST_ID,
1828 sizeof(arp_pattern), arp_offset,
1829 arp_pattern, arp_mask);
1830 if (ret) {
1831 ath6kl_err("failed to add WOW ARP pattern\n");
1832 return ret;
1833 }
1834
1835 /*
1836 * Setup multicast pattern for mDNS 224.0.0.251,
1837 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
1838 */
1839 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1840 vif->fw_vif_idx, WOW_LIST_ID,
1841 sizeof(discvr_pattern), discvr_offset,
1842 discvr_pattern, discvr_mask);
1843 if (ret) {
1844 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
1845 return ret;
1846 }
1847
1848 /* Setup all DHCP broadcast pkt pattern */
1849 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1850 vif->fw_vif_idx, WOW_LIST_ID,
1851 sizeof(dhcp_pattern), dhcp_offset,
1852 dhcp_pattern, dhcp_mask);
1853 if (ret) {
1854 ath6kl_err("failed to add WOW DHCP broadcast pattern\n");
1855 return ret;
1856 }
1857
1858 return 0;
1859 }
1860
1861 static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif)
1862 {
1863 struct net_device *ndev = vif->ndev;
1864 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
1865 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
1866 u8 discvr_offset = 38;
1867 u8 mac_mask[ETH_ALEN];
1868 int ret;
1869
1870 /* Setup unicast pkt pattern */
1871 memset(mac_mask, 0xff, ETH_ALEN);
1872 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1873 vif->fw_vif_idx, WOW_LIST_ID,
1874 ETH_ALEN, 0, ndev->dev_addr,
1875 mac_mask);
1876 if (ret) {
1877 ath6kl_err("failed to add WOW unicast pattern\n");
1878 return ret;
1879 }
1880
1881 /*
1882 * Setup multicast pattern for mDNS 224.0.0.251,
1883 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
1884 */
1885 if ((ndev->flags & IFF_ALLMULTI) ||
1886 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) {
1887 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1888 vif->fw_vif_idx, WOW_LIST_ID,
1889 sizeof(discvr_pattern), discvr_offset,
1890 discvr_pattern, discvr_mask);
1891 if (ret) {
1892 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR "
1893 "pattern\n");
1894 return ret;
1895 }
1896 }
1897
1898 return 0;
1899 }
1900
1901 static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
1902 {
1903 struct in_device *in_dev;
1904 struct in_ifaddr *ifa;
1905 struct ath6kl_vif *vif;
1906 int ret, left;
1907 u32 filter = 0;
1908 u16 i;
1909 u8 index = 0;
1910 __be32 ips[MAX_IP_ADDRS];
1911
1912 vif = ath6kl_vif_first(ar);
1913 if (!vif)
1914 return -EIO;
1915
1916 if (!ath6kl_cfg80211_ready(vif))
1917 return -EIO;
1918
1919 if (!test_bit(CONNECTED, &vif->flags))
1920 return -ENOTCONN;
1921
1922 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST))
1923 return -EINVAL;
1924
1925 /* Clear existing WOW patterns */
1926 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++)
1927 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx,
1928 WOW_LIST_ID, i);
1929
1930 /*
1931 * Skip the default WOW pattern configuration
1932 * if the driver receives any WOW patterns from
1933 * the user.
1934 */
1935 if (wow)
1936 ret = ath6kl_wow_usr(ar, vif, wow, &filter);
1937 else if (vif->nw_type == AP_NETWORK)
1938 ret = ath6kl_wow_ap(ar, vif);
1939 else
1940 ret = ath6kl_wow_sta(ar, vif);
1941
1942 if (ret)
1943 return ret;
1944
1945 /* Setup own IP addr for ARP agent. */
1946 in_dev = __in_dev_get_rtnl(vif->ndev);
1947 if (!in_dev)
1948 goto skip_arp;
1949
1950 ifa = in_dev->ifa_list;
1951 memset(&ips, 0, sizeof(ips));
1952
1953 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */
1954 while (index < MAX_IP_ADDRS && ifa) {
1955 ips[index] = ifa->ifa_local;
1956 ifa = ifa->ifa_next;
1957 index++;
1958 }
1959
1960 if (ifa) {
1961 ath6kl_err("total IP addr count is exceeding fw limit\n");
1962 return -EINVAL;
1963 }
1964
1965 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]);
1966 if (ret) {
1967 ath6kl_err("fail to setup ip for arp agent\n");
1968 return ret;
1969 }
1970
1971 skip_arp:
1972 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
1973 ATH6KL_WOW_MODE_ENABLE,
1974 filter,
1975 WOW_HOST_REQ_DELAY);
1976 if (ret)
1977 return ret;
1978
1979 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
1980
1981 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
1982 ATH6KL_HOST_MODE_ASLEEP);
1983 if (ret)
1984 return ret;
1985
1986 left = wait_event_interruptible_timeout(ar->event_wq,
1987 test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags),
1988 WMI_TIMEOUT);
1989 if (left == 0) {
1990 ath6kl_warn("timeout, didn't get host sleep cmd "
1991 "processed event\n");
1992 ret = -ETIMEDOUT;
1993 } else if (left < 0) {
1994 ath6kl_warn("error while waiting for host sleep cmd "
1995 "processed event %d\n", left);
1996 ret = left;
1997 }
1998
1999 if (ar->tx_pending[ar->ctrl_ep]) {
2000 left = wait_event_interruptible_timeout(ar->event_wq,
2001 ar->tx_pending[ar->ctrl_ep] == 0, WMI_TIMEOUT);
2002 if (left == 0) {
2003 ath6kl_warn("clear wmi ctrl data timeout\n");
2004 ret = -ETIMEDOUT;
2005 } else if (left < 0) {
2006 ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
2007 ret = left;
2008 }
2009 }
2010
2011 return ret;
2012 }
2013
2014 static int ath6kl_wow_resume(struct ath6kl *ar)
2015 {
2016 struct ath6kl_vif *vif;
2017 int ret;
2018
2019 vif = ath6kl_vif_first(ar);
2020 if (!vif)
2021 return -EIO;
2022
2023 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2024 ATH6KL_HOST_MODE_AWAKE);
2025 return ret;
2026 }
2027
2028 int ath6kl_cfg80211_suspend(struct ath6kl *ar,
2029 enum ath6kl_cfg_suspend_mode mode,
2030 struct cfg80211_wowlan *wow)
2031 {
2032 int ret;
2033
2034 switch (mode) {
2035 case ATH6KL_CFG_SUSPEND_WOW:
2036
2037 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n");
2038
2039 /* Flush all non control pkts in TX path */
2040 ath6kl_tx_data_cleanup(ar);
2041
2042 ret = ath6kl_wow_suspend(ar, wow);
2043 if (ret) {
2044 ath6kl_err("wow suspend failed: %d\n", ret);
2045 return ret;
2046 }
2047 ar->state = ATH6KL_STATE_WOW;
2048 break;
2049
2050 case ATH6KL_CFG_SUSPEND_DEEPSLEEP:
2051
2052 ath6kl_cfg80211_stop_all(ar);
2053
2054 /* save the current power mode before enabling power save */
2055 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
2056
2057 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
2058 if (ret) {
2059 ath6kl_warn("wmi powermode command failed during suspend: %d\n",
2060 ret);
2061 }
2062
2063 ar->state = ATH6KL_STATE_DEEPSLEEP;
2064
2065 break;
2066
2067 case ATH6KL_CFG_SUSPEND_CUTPOWER:
2068
2069 ath6kl_cfg80211_stop_all(ar);
2070
2071 if (ar->state == ATH6KL_STATE_OFF) {
2072 ath6kl_dbg(ATH6KL_DBG_SUSPEND,
2073 "suspend hw off, no action for cutpower\n");
2074 break;
2075 }
2076
2077 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n");
2078
2079 ret = ath6kl_init_hw_stop(ar);
2080 if (ret) {
2081 ath6kl_warn("failed to stop hw during suspend: %d\n",
2082 ret);
2083 }
2084
2085 ar->state = ATH6KL_STATE_CUTPOWER;
2086
2087 break;
2088
2089 case ATH6KL_CFG_SUSPEND_SCHED_SCAN:
2090 /*
2091 * Nothing needed for schedule scan, firmware is already in
2092 * wow mode and sleeping most of the time.
2093 */
2094 break;
2095
2096 default:
2097 break;
2098 }
2099
2100 return 0;
2101 }
2102 EXPORT_SYMBOL(ath6kl_cfg80211_suspend);
2103
2104 int ath6kl_cfg80211_resume(struct ath6kl *ar)
2105 {
2106 int ret;
2107
2108 switch (ar->state) {
2109 case ATH6KL_STATE_WOW:
2110 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n");
2111
2112 ret = ath6kl_wow_resume(ar);
2113 if (ret) {
2114 ath6kl_warn("wow mode resume failed: %d\n", ret);
2115 return ret;
2116 }
2117
2118 ar->state = ATH6KL_STATE_ON;
2119 break;
2120
2121 case ATH6KL_STATE_DEEPSLEEP:
2122 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
2123 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
2124 ar->wmi->saved_pwr_mode);
2125 if (ret) {
2126 ath6kl_warn("wmi powermode command failed during resume: %d\n",
2127 ret);
2128 }
2129 }
2130
2131 ar->state = ATH6KL_STATE_ON;
2132
2133 break;
2134
2135 case ATH6KL_STATE_CUTPOWER:
2136 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n");
2137
2138 ret = ath6kl_init_hw_start(ar);
2139 if (ret) {
2140 ath6kl_warn("Failed to boot hw in resume: %d\n", ret);
2141 return ret;
2142 }
2143 break;
2144
2145 case ATH6KL_STATE_SCHED_SCAN:
2146 break;
2147
2148 default:
2149 break;
2150 }
2151
2152 return 0;
2153 }
2154 EXPORT_SYMBOL(ath6kl_cfg80211_resume);
2155
2156 #ifdef CONFIG_PM
2157
2158 /* hif layer decides what suspend mode to use */
2159 static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy,
2160 struct cfg80211_wowlan *wow)
2161 {
2162 struct ath6kl *ar = wiphy_priv(wiphy);
2163
2164 return ath6kl_hif_suspend(ar, wow);
2165 }
2166
2167 static int __ath6kl_cfg80211_resume(struct wiphy *wiphy)
2168 {
2169 struct ath6kl *ar = wiphy_priv(wiphy);
2170
2171 return ath6kl_hif_resume(ar);
2172 }
2173
2174 /*
2175 * FIXME: WOW suspend mode is selected if the host sdio controller supports
2176 * both sdio irq wake up and keep power. The target pulls sdio data line to
2177 * wake up the host when WOW pattern matches. This causes sdio irq handler
2178 * is being called in the host side which internally hits ath6kl's RX path.
2179 *
2180 * Since sdio interrupt is not disabled, RX path executes even before
2181 * the host executes the actual resume operation from PM module.
2182 *
2183 * In the current scenario, WOW resume should happen before start processing
2184 * any data from the target. So It's required to perform WOW resume in RX path.
2185 * Ideally we should perform WOW resume only in the actual platform
2186 * resume path. This area needs bit rework to avoid WOW resume in RX path.
2187 *
2188 * ath6kl_check_wow_status() is called from ath6kl_rx().
2189 */
2190 void ath6kl_check_wow_status(struct ath6kl *ar)
2191 {
2192 if (ar->state == ATH6KL_STATE_WOW)
2193 ath6kl_cfg80211_resume(ar);
2194 }
2195
2196 #else
2197
2198 void ath6kl_check_wow_status(struct ath6kl *ar)
2199 {
2200 }
2201 #endif
2202
2203 static int ath6kl_set_channel(struct wiphy *wiphy, struct net_device *dev,
2204 struct ieee80211_channel *chan,
2205 enum nl80211_channel_type channel_type)
2206 {
2207 struct ath6kl_vif *vif;
2208
2209 /*
2210 * 'dev' could be NULL if a channel change is required for the hardware
2211 * device itself, instead of a particular VIF.
2212 *
2213 * FIXME: To be handled properly when monitor mode is supported.
2214 */
2215 if (!dev)
2216 return -EBUSY;
2217
2218 vif = netdev_priv(dev);
2219
2220 if (!ath6kl_cfg80211_ready(vif))
2221 return -EIO;
2222
2223 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: center_freq=%u hw_value=%u\n",
2224 __func__, chan->center_freq, chan->hw_value);
2225 vif->next_chan = chan->center_freq;
2226
2227 return 0;
2228 }
2229
2230 static bool ath6kl_is_p2p_ie(const u8 *pos)
2231 {
2232 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
2233 pos[2] == 0x50 && pos[3] == 0x6f &&
2234 pos[4] == 0x9a && pos[5] == 0x09;
2235 }
2236
2237 static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif,
2238 const u8 *ies, size_t ies_len)
2239 {
2240 struct ath6kl *ar = vif->ar;
2241 const u8 *pos;
2242 u8 *buf = NULL;
2243 size_t len = 0;
2244 int ret;
2245
2246 /*
2247 * Filter out P2P IE(s) since they will be included depending on
2248 * the Probe Request frame in ath6kl_send_go_probe_resp().
2249 */
2250
2251 if (ies && ies_len) {
2252 buf = kmalloc(ies_len, GFP_KERNEL);
2253 if (buf == NULL)
2254 return -ENOMEM;
2255 pos = ies;
2256 while (pos + 1 < ies + ies_len) {
2257 if (pos + 2 + pos[1] > ies + ies_len)
2258 break;
2259 if (!ath6kl_is_p2p_ie(pos)) {
2260 memcpy(buf + len, pos, 2 + pos[1]);
2261 len += 2 + pos[1];
2262 }
2263 pos += 2 + pos[1];
2264 }
2265 }
2266
2267 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2268 WMI_FRAME_PROBE_RESP, buf, len);
2269 kfree(buf);
2270 return ret;
2271 }
2272
2273 static int ath6kl_ap_beacon(struct wiphy *wiphy, struct net_device *dev,
2274 struct beacon_parameters *info, bool add)
2275 {
2276 struct ath6kl *ar = ath6kl_priv(dev);
2277 struct ath6kl_vif *vif = netdev_priv(dev);
2278 struct ieee80211_mgmt *mgmt;
2279 u8 *ies;
2280 int ies_len;
2281 struct wmi_connect_cmd p;
2282 int res;
2283 int i, ret;
2284
2285 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: add=%d\n", __func__, add);
2286
2287 if (!ath6kl_cfg80211_ready(vif))
2288 return -EIO;
2289
2290 if (vif->next_mode != AP_NETWORK)
2291 return -EOPNOTSUPP;
2292
2293 if (info->beacon_ies) {
2294 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2295 WMI_FRAME_BEACON,
2296 info->beacon_ies,
2297 info->beacon_ies_len);
2298 if (res)
2299 return res;
2300 }
2301 if (info->proberesp_ies) {
2302 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies,
2303 info->proberesp_ies_len);
2304 if (res)
2305 return res;
2306 }
2307 if (info->assocresp_ies) {
2308 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2309 WMI_FRAME_ASSOC_RESP,
2310 info->assocresp_ies,
2311 info->assocresp_ies_len);
2312 if (res)
2313 return res;
2314 }
2315
2316 if (!add)
2317 return 0;
2318
2319 ar->ap_mode_bkey.valid = false;
2320
2321 /* TODO:
2322 * info->interval
2323 * info->dtim_period
2324 */
2325
2326 if (info->head == NULL)
2327 return -EINVAL;
2328 mgmt = (struct ieee80211_mgmt *) info->head;
2329 ies = mgmt->u.beacon.variable;
2330 if (ies > info->head + info->head_len)
2331 return -EINVAL;
2332 ies_len = info->head + info->head_len - ies;
2333
2334 if (info->ssid == NULL)
2335 return -EINVAL;
2336 memcpy(vif->ssid, info->ssid, info->ssid_len);
2337 vif->ssid_len = info->ssid_len;
2338 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE)
2339 return -EOPNOTSUPP; /* TODO */
2340
2341 ret = ath6kl_set_auth_type(vif, info->auth_type);
2342 if (ret)
2343 return ret;
2344
2345 memset(&p, 0, sizeof(p));
2346
2347 for (i = 0; i < info->crypto.n_akm_suites; i++) {
2348 switch (info->crypto.akm_suites[i]) {
2349 case WLAN_AKM_SUITE_8021X:
2350 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2351 p.auth_mode |= WPA_AUTH;
2352 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2353 p.auth_mode |= WPA2_AUTH;
2354 break;
2355 case WLAN_AKM_SUITE_PSK:
2356 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2357 p.auth_mode |= WPA_PSK_AUTH;
2358 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2359 p.auth_mode |= WPA2_PSK_AUTH;
2360 break;
2361 }
2362 }
2363 if (p.auth_mode == 0)
2364 p.auth_mode = NONE_AUTH;
2365 vif->auth_mode = p.auth_mode;
2366
2367 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) {
2368 switch (info->crypto.ciphers_pairwise[i]) {
2369 case WLAN_CIPHER_SUITE_WEP40:
2370 case WLAN_CIPHER_SUITE_WEP104:
2371 p.prwise_crypto_type |= WEP_CRYPT;
2372 break;
2373 case WLAN_CIPHER_SUITE_TKIP:
2374 p.prwise_crypto_type |= TKIP_CRYPT;
2375 break;
2376 case WLAN_CIPHER_SUITE_CCMP:
2377 p.prwise_crypto_type |= AES_CRYPT;
2378 break;
2379 case WLAN_CIPHER_SUITE_SMS4:
2380 p.prwise_crypto_type |= WAPI_CRYPT;
2381 break;
2382 }
2383 }
2384 if (p.prwise_crypto_type == 0) {
2385 p.prwise_crypto_type = NONE_CRYPT;
2386 ath6kl_set_cipher(vif, 0, true);
2387 } else if (info->crypto.n_ciphers_pairwise == 1)
2388 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true);
2389
2390 switch (info->crypto.cipher_group) {
2391 case WLAN_CIPHER_SUITE_WEP40:
2392 case WLAN_CIPHER_SUITE_WEP104:
2393 p.grp_crypto_type = WEP_CRYPT;
2394 break;
2395 case WLAN_CIPHER_SUITE_TKIP:
2396 p.grp_crypto_type = TKIP_CRYPT;
2397 break;
2398 case WLAN_CIPHER_SUITE_CCMP:
2399 p.grp_crypto_type = AES_CRYPT;
2400 break;
2401 case WLAN_CIPHER_SUITE_SMS4:
2402 p.grp_crypto_type = WAPI_CRYPT;
2403 break;
2404 default:
2405 p.grp_crypto_type = NONE_CRYPT;
2406 break;
2407 }
2408 ath6kl_set_cipher(vif, info->crypto.cipher_group, false);
2409
2410 p.nw_type = AP_NETWORK;
2411 vif->nw_type = vif->next_mode;
2412
2413 p.ssid_len = vif->ssid_len;
2414 memcpy(p.ssid, vif->ssid, vif->ssid_len);
2415 p.dot11_auth_mode = vif->dot11_auth_mode;
2416 p.ch = cpu_to_le16(vif->next_chan);
2417
2418 /* Enable uAPSD support by default */
2419 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true);
2420 if (res < 0)
2421 return res;
2422
2423 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) {
2424 p.nw_subtype = SUBTYPE_P2PGO;
2425 } else {
2426 /*
2427 * Due to firmware limitation, it is not possible to
2428 * do P2P mgmt operations in AP mode
2429 */
2430 p.nw_subtype = SUBTYPE_NONE;
2431 }
2432
2433 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p);
2434 if (res < 0)
2435 return res;
2436
2437 return 0;
2438 }
2439
2440 static int ath6kl_add_beacon(struct wiphy *wiphy, struct net_device *dev,
2441 struct beacon_parameters *info)
2442 {
2443 return ath6kl_ap_beacon(wiphy, dev, info, true);
2444 }
2445
2446 static int ath6kl_set_beacon(struct wiphy *wiphy, struct net_device *dev,
2447 struct beacon_parameters *info)
2448 {
2449 return ath6kl_ap_beacon(wiphy, dev, info, false);
2450 }
2451
2452 static int ath6kl_del_beacon(struct wiphy *wiphy, struct net_device *dev)
2453 {
2454 struct ath6kl *ar = ath6kl_priv(dev);
2455 struct ath6kl_vif *vif = netdev_priv(dev);
2456
2457 if (vif->nw_type != AP_NETWORK)
2458 return -EOPNOTSUPP;
2459 if (!test_bit(CONNECTED, &vif->flags))
2460 return -ENOTCONN;
2461
2462 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
2463 clear_bit(CONNECTED, &vif->flags);
2464
2465 return 0;
2466 }
2467
2468 static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2469
2470 static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev,
2471 u8 *mac)
2472 {
2473 struct ath6kl *ar = ath6kl_priv(dev);
2474 struct ath6kl_vif *vif = netdev_priv(dev);
2475 const u8 *addr = mac ? mac : bcast_addr;
2476
2477 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH,
2478 addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
2479 }
2480
2481 static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev,
2482 u8 *mac, struct station_parameters *params)
2483 {
2484 struct ath6kl *ar = ath6kl_priv(dev);
2485 struct ath6kl_vif *vif = netdev_priv(dev);
2486
2487 if (vif->nw_type != AP_NETWORK)
2488 return -EOPNOTSUPP;
2489
2490 /* Use this only for authorizing/unauthorizing a station */
2491 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
2492 return -EOPNOTSUPP;
2493
2494 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
2495 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
2496 WMI_AP_MLME_AUTHORIZE, mac, 0);
2497 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
2498 WMI_AP_MLME_UNAUTHORIZE, mac, 0);
2499 }
2500
2501 static int ath6kl_remain_on_channel(struct wiphy *wiphy,
2502 struct net_device *dev,
2503 struct ieee80211_channel *chan,
2504 enum nl80211_channel_type channel_type,
2505 unsigned int duration,
2506 u64 *cookie)
2507 {
2508 struct ath6kl *ar = ath6kl_priv(dev);
2509 struct ath6kl_vif *vif = netdev_priv(dev);
2510 u32 id;
2511
2512 /* TODO: if already pending or ongoing remain-on-channel,
2513 * return -EBUSY */
2514 id = ++vif->last_roc_id;
2515 if (id == 0) {
2516 /* Do not use 0 as the cookie value */
2517 id = ++vif->last_roc_id;
2518 }
2519 *cookie = id;
2520
2521 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx,
2522 chan->center_freq, duration);
2523 }
2524
2525 static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy,
2526 struct net_device *dev,
2527 u64 cookie)
2528 {
2529 struct ath6kl *ar = ath6kl_priv(dev);
2530 struct ath6kl_vif *vif = netdev_priv(dev);
2531
2532 if (cookie != vif->last_roc_id)
2533 return -ENOENT;
2534 vif->last_cancel_roc_id = cookie;
2535
2536 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx);
2537 }
2538
2539 static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif,
2540 const u8 *buf, size_t len,
2541 unsigned int freq)
2542 {
2543 struct ath6kl *ar = vif->ar;
2544 const u8 *pos;
2545 u8 *p2p;
2546 int p2p_len;
2547 int ret;
2548 const struct ieee80211_mgmt *mgmt;
2549
2550 mgmt = (const struct ieee80211_mgmt *) buf;
2551
2552 /* Include P2P IE(s) from the frame generated in user space. */
2553
2554 p2p = kmalloc(len, GFP_KERNEL);
2555 if (p2p == NULL)
2556 return -ENOMEM;
2557 p2p_len = 0;
2558
2559 pos = mgmt->u.probe_resp.variable;
2560 while (pos + 1 < buf + len) {
2561 if (pos + 2 + pos[1] > buf + len)
2562 break;
2563 if (ath6kl_is_p2p_ie(pos)) {
2564 memcpy(p2p + p2p_len, pos, 2 + pos[1]);
2565 p2p_len += 2 + pos[1];
2566 }
2567 pos += 2 + pos[1];
2568 }
2569
2570 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq,
2571 mgmt->da, p2p, p2p_len);
2572 kfree(p2p);
2573 return ret;
2574 }
2575
2576 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
2577 struct ieee80211_channel *chan, bool offchan,
2578 enum nl80211_channel_type channel_type,
2579 bool channel_type_valid, unsigned int wait,
2580 const u8 *buf, size_t len, bool no_cck,
2581 bool dont_wait_for_ack, u64 *cookie)
2582 {
2583 struct ath6kl *ar = ath6kl_priv(dev);
2584 struct ath6kl_vif *vif = netdev_priv(dev);
2585 u32 id;
2586 const struct ieee80211_mgmt *mgmt;
2587
2588 mgmt = (const struct ieee80211_mgmt *) buf;
2589 if (buf + len >= mgmt->u.probe_resp.variable &&
2590 vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) &&
2591 ieee80211_is_probe_resp(mgmt->frame_control)) {
2592 /*
2593 * Send Probe Response frame in AP mode using a separate WMI
2594 * command to allow the target to fill in the generic IEs.
2595 */
2596 *cookie = 0; /* TX status not supported */
2597 return ath6kl_send_go_probe_resp(vif, buf, len,
2598 chan->center_freq);
2599 }
2600
2601 id = vif->send_action_id++;
2602 if (id == 0) {
2603 /*
2604 * 0 is a reserved value in the WMI command and shall not be
2605 * used for the command.
2606 */
2607 id = vif->send_action_id++;
2608 }
2609
2610 *cookie = id;
2611
2612 if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
2613 ar->fw_capabilities)) {
2614 /*
2615 * If capable of doing P2P mgmt operations using
2616 * station interface, send additional information like
2617 * supported rates to advertise and xmit rates for
2618 * probe requests
2619 */
2620 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id,
2621 chan->center_freq, wait,
2622 buf, len, no_cck);
2623 } else {
2624 return ath6kl_wmi_send_action_cmd(ar->wmi, vif->fw_vif_idx, id,
2625 chan->center_freq, wait,
2626 buf, len);
2627 }
2628 }
2629
2630 static void ath6kl_mgmt_frame_register(struct wiphy *wiphy,
2631 struct net_device *dev,
2632 u16 frame_type, bool reg)
2633 {
2634 struct ath6kl_vif *vif = netdev_priv(dev);
2635
2636 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n",
2637 __func__, frame_type, reg);
2638 if (frame_type == IEEE80211_STYPE_PROBE_REQ) {
2639 /*
2640 * Note: This notification callback is not allowed to sleep, so
2641 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we
2642 * hardcode target to report Probe Request frames all the time.
2643 */
2644 vif->probe_req_report = reg;
2645 }
2646 }
2647
2648 static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy,
2649 struct net_device *dev,
2650 struct cfg80211_sched_scan_request *request)
2651 {
2652 struct ath6kl *ar = ath6kl_priv(dev);
2653 struct ath6kl_vif *vif = netdev_priv(dev);
2654 u16 interval;
2655 int ret;
2656 u8 i;
2657
2658 if (ar->state != ATH6KL_STATE_ON)
2659 return -EIO;
2660
2661 if (vif->sme_state != SME_DISCONNECTED)
2662 return -EBUSY;
2663
2664 for (i = 0; i < ar->wiphy->max_sched_scan_ssids; i++) {
2665 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
2666 i, DISABLE_SSID_FLAG,
2667 0, NULL);
2668 }
2669
2670 /* fw uses seconds, also make sure that it's >0 */
2671 interval = max_t(u16, 1, request->interval / 1000);
2672
2673 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2674 interval, interval,
2675 10, 0, 0, 0, 3, 0, 0, 0);
2676
2677 if (request->n_ssids && request->ssids[0].ssid_len) {
2678 for (i = 0; i < request->n_ssids; i++) {
2679 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
2680 i, SPECIFIC_SSID_FLAG,
2681 request->ssids[i].ssid_len,
2682 request->ssids[i].ssid);
2683 }
2684 }
2685
2686 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
2687 ATH6KL_WOW_MODE_ENABLE,
2688 WOW_FILTER_SSID,
2689 WOW_HOST_REQ_DELAY);
2690 if (ret) {
2691 ath6kl_warn("Failed to enable wow with ssid filter: %d\n", ret);
2692 return ret;
2693 }
2694
2695 /* this also clears IE in fw if it's not set */
2696 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2697 WMI_FRAME_PROBE_REQ,
2698 request->ie, request->ie_len);
2699 if (ret) {
2700 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d",
2701 ret);
2702 return ret;
2703 }
2704
2705 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2706 ATH6KL_HOST_MODE_ASLEEP);
2707 if (ret) {
2708 ath6kl_warn("Failed to enable host sleep mode for sched scan: %d\n",
2709 ret);
2710 return ret;
2711 }
2712
2713 ar->state = ATH6KL_STATE_SCHED_SCAN;
2714
2715 return ret;
2716 }
2717
2718 static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy,
2719 struct net_device *dev)
2720 {
2721 struct ath6kl_vif *vif = netdev_priv(dev);
2722 bool stopped;
2723
2724 stopped = __ath6kl_cfg80211_sscan_stop(vif);
2725
2726 if (!stopped)
2727 return -EIO;
2728
2729 return 0;
2730 }
2731
2732 static const struct ieee80211_txrx_stypes
2733 ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = {
2734 [NL80211_IFTYPE_STATION] = {
2735 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2736 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
2737 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2738 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
2739 },
2740 [NL80211_IFTYPE_AP] = {
2741 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2742 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
2743 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2744 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
2745 },
2746 [NL80211_IFTYPE_P2P_CLIENT] = {
2747 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2748 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
2749 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2750 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
2751 },
2752 [NL80211_IFTYPE_P2P_GO] = {
2753 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2754 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
2755 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
2756 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
2757 },
2758 };
2759
2760 static struct cfg80211_ops ath6kl_cfg80211_ops = {
2761 .add_virtual_intf = ath6kl_cfg80211_add_iface,
2762 .del_virtual_intf = ath6kl_cfg80211_del_iface,
2763 .change_virtual_intf = ath6kl_cfg80211_change_iface,
2764 .scan = ath6kl_cfg80211_scan,
2765 .connect = ath6kl_cfg80211_connect,
2766 .disconnect = ath6kl_cfg80211_disconnect,
2767 .add_key = ath6kl_cfg80211_add_key,
2768 .get_key = ath6kl_cfg80211_get_key,
2769 .del_key = ath6kl_cfg80211_del_key,
2770 .set_default_key = ath6kl_cfg80211_set_default_key,
2771 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,
2772 .set_tx_power = ath6kl_cfg80211_set_txpower,
2773 .get_tx_power = ath6kl_cfg80211_get_txpower,
2774 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,
2775 .join_ibss = ath6kl_cfg80211_join_ibss,
2776 .leave_ibss = ath6kl_cfg80211_leave_ibss,
2777 .get_station = ath6kl_get_station,
2778 .set_pmksa = ath6kl_set_pmksa,
2779 .del_pmksa = ath6kl_del_pmksa,
2780 .flush_pmksa = ath6kl_flush_pmksa,
2781 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd)
2782 #ifdef CONFIG_PM
2783 .suspend = __ath6kl_cfg80211_suspend,
2784 .resume = __ath6kl_cfg80211_resume,
2785 #endif
2786 .set_channel = ath6kl_set_channel,
2787 .add_beacon = ath6kl_add_beacon,
2788 .set_beacon = ath6kl_set_beacon,
2789 .del_beacon = ath6kl_del_beacon,
2790 .del_station = ath6kl_del_station,
2791 .change_station = ath6kl_change_station,
2792 .remain_on_channel = ath6kl_remain_on_channel,
2793 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel,
2794 .mgmt_tx = ath6kl_mgmt_tx,
2795 .mgmt_frame_register = ath6kl_mgmt_frame_register,
2796 .sched_scan_start = ath6kl_cfg80211_sscan_start,
2797 .sched_scan_stop = ath6kl_cfg80211_sscan_stop,
2798 };
2799
2800 void ath6kl_cfg80211_stop(struct ath6kl_vif *vif)
2801 {
2802 ath6kl_cfg80211_sscan_disable(vif);
2803
2804 switch (vif->sme_state) {
2805 case SME_DISCONNECTED:
2806 break;
2807 case SME_CONNECTING:
2808 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0,
2809 NULL, 0,
2810 WLAN_STATUS_UNSPECIFIED_FAILURE,
2811 GFP_KERNEL);
2812 break;
2813 case SME_CONNECTED:
2814 cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL);
2815 break;
2816 }
2817
2818 if (test_bit(CONNECTED, &vif->flags) ||
2819 test_bit(CONNECT_PEND, &vif->flags))
2820 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
2821
2822 vif->sme_state = SME_DISCONNECTED;
2823 clear_bit(CONNECTED, &vif->flags);
2824 clear_bit(CONNECT_PEND, &vif->flags);
2825
2826 /* disable scanning */
2827 if (ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF,
2828 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0)
2829 ath6kl_warn("failed to disable scan during stop\n");
2830
2831 ath6kl_cfg80211_scan_complete_event(vif, true);
2832 }
2833
2834 void ath6kl_cfg80211_stop_all(struct ath6kl *ar)
2835 {
2836 struct ath6kl_vif *vif;
2837
2838 vif = ath6kl_vif_first(ar);
2839 if (!vif) {
2840 /* save the current power mode before enabling power save */
2841 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
2842
2843 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0)
2844 ath6kl_warn("ath6kl_deep_sleep_enable: "
2845 "wmi_powermode_cmd failed\n");
2846 return;
2847 }
2848
2849 /*
2850 * FIXME: we should take ar->list_lock to protect changes in the
2851 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop()
2852 * sleeps.
2853 */
2854 list_for_each_entry(vif, &ar->vif_list, list)
2855 ath6kl_cfg80211_stop(vif);
2856 }
2857
2858 static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif)
2859 {
2860 vif->aggr_cntxt = aggr_init(vif);
2861 if (!vif->aggr_cntxt) {
2862 ath6kl_err("failed to initialize aggr\n");
2863 return -ENOMEM;
2864 }
2865
2866 setup_timer(&vif->disconnect_timer, disconnect_timer_handler,
2867 (unsigned long) vif->ndev);
2868 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer,
2869 (unsigned long) vif);
2870
2871 set_bit(WMM_ENABLED, &vif->flags);
2872 spin_lock_init(&vif->if_lock);
2873
2874 INIT_LIST_HEAD(&vif->mc_filter);
2875
2876 return 0;
2877 }
2878
2879 void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif)
2880 {
2881 struct ath6kl *ar = vif->ar;
2882 struct ath6kl_mc_filter *mc_filter, *tmp;
2883
2884 aggr_module_destroy(vif->aggr_cntxt);
2885
2886 ar->avail_idx_map |= BIT(vif->fw_vif_idx);
2887
2888 if (vif->nw_type == ADHOC_NETWORK)
2889 ar->ibss_if_active = false;
2890
2891 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
2892 list_del(&mc_filter->list);
2893 kfree(mc_filter);
2894 }
2895
2896 unregister_netdevice(vif->ndev);
2897
2898 ar->num_vif--;
2899 }
2900
2901 struct net_device *ath6kl_interface_add(struct ath6kl *ar, char *name,
2902 enum nl80211_iftype type, u8 fw_vif_idx,
2903 u8 nw_type)
2904 {
2905 struct net_device *ndev;
2906 struct ath6kl_vif *vif;
2907
2908 ndev = alloc_netdev(sizeof(*vif), name, ether_setup);
2909 if (!ndev)
2910 return NULL;
2911
2912 vif = netdev_priv(ndev);
2913 ndev->ieee80211_ptr = &vif->wdev;
2914 vif->wdev.wiphy = ar->wiphy;
2915 vif->ar = ar;
2916 vif->ndev = ndev;
2917 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy));
2918 vif->wdev.netdev = ndev;
2919 vif->wdev.iftype = type;
2920 vif->fw_vif_idx = fw_vif_idx;
2921 vif->nw_type = vif->next_mode = nw_type;
2922
2923 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
2924 if (fw_vif_idx != 0)
2925 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) |
2926 0x2;
2927
2928 init_netdev(ndev);
2929
2930 ath6kl_init_control_info(vif);
2931
2932 if (ath6kl_cfg80211_vif_init(vif))
2933 goto err;
2934
2935 if (register_netdevice(ndev))
2936 goto err;
2937
2938 ar->avail_idx_map &= ~BIT(fw_vif_idx);
2939 vif->sme_state = SME_DISCONNECTED;
2940 set_bit(WLAN_ENABLED, &vif->flags);
2941 ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
2942 set_bit(NETDEV_REGISTERED, &vif->flags);
2943
2944 if (type == NL80211_IFTYPE_ADHOC)
2945 ar->ibss_if_active = true;
2946
2947 spin_lock_bh(&ar->list_lock);
2948 list_add_tail(&vif->list, &ar->vif_list);
2949 spin_unlock_bh(&ar->list_lock);
2950
2951 return ndev;
2952
2953 err:
2954 aggr_module_destroy(vif->aggr_cntxt);
2955 free_netdev(ndev);
2956 return NULL;
2957 }
2958
2959 int ath6kl_cfg80211_init(struct ath6kl *ar)
2960 {
2961 struct wiphy *wiphy = ar->wiphy;
2962 int ret;
2963
2964 wiphy->mgmt_stypes = ath6kl_mgmt_stypes;
2965
2966 wiphy->max_remain_on_channel_duration = 5000;
2967
2968 /* set device pointer for wiphy */
2969 set_wiphy_dev(wiphy, ar->dev);
2970
2971 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2972 BIT(NL80211_IFTYPE_ADHOC) |
2973 BIT(NL80211_IFTYPE_AP);
2974 if (ar->p2p) {
2975 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) |
2976 BIT(NL80211_IFTYPE_P2P_CLIENT);
2977 }
2978
2979 /* max num of ssids that can be probed during scanning */
2980 wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX;
2981 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */
2982 wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz;
2983 wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz;
2984 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2985
2986 wiphy->cipher_suites = cipher_suites;
2987 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
2988
2989 wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
2990 WIPHY_WOWLAN_DISCONNECT |
2991 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
2992 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
2993 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
2994 WIPHY_WOWLAN_4WAY_HANDSHAKE;
2995 wiphy->wowlan.n_patterns = WOW_MAX_FILTERS_PER_LIST;
2996 wiphy->wowlan.pattern_min_len = 1;
2997 wiphy->wowlan.pattern_max_len = WOW_PATTERN_SIZE;
2998
2999 wiphy->max_sched_scan_ssids = 10;
3000
3001 ret = wiphy_register(wiphy);
3002 if (ret < 0) {
3003 ath6kl_err("couldn't register wiphy device\n");
3004 return ret;
3005 }
3006
3007 return 0;
3008 }
3009
3010 void ath6kl_cfg80211_cleanup(struct ath6kl *ar)
3011 {
3012 wiphy_unregister(ar->wiphy);
3013 }
3014
3015 struct ath6kl *ath6kl_cfg80211_create(void)
3016 {
3017 struct ath6kl *ar;
3018 struct wiphy *wiphy;
3019
3020 /* create a new wiphy for use with cfg80211 */
3021 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));
3022
3023 if (!wiphy) {
3024 ath6kl_err("couldn't allocate wiphy device\n");
3025 return NULL;
3026 }
3027
3028 ar = wiphy_priv(wiphy);
3029 ar->wiphy = wiphy;
3030
3031 return ar;
3032 }
3033
3034 /* Note: ar variable must not be accessed after calling this! */
3035 void ath6kl_cfg80211_destroy(struct ath6kl *ar)
3036 {
3037 int i;
3038
3039 for (i = 0; i < AP_MAX_NUM_STA; i++)
3040 kfree(ar->sta_list[i].aggr_conn);
3041
3042 wiphy_free(ar->wiphy);
3043 }
3044
Linux kernel - Deliverables
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