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[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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
19
20 #include <linux/moduleparam.h>
21 #include <linux/inetdevice.h>
22 #include <linux/export.h>
23
24 #include "core.h"
25 #include "cfg80211.h"
26 #include "debug.h"
27 #include "hif-ops.h"
28 #include "testmode.h"
29
30 #define RATETAB_ENT(_rate, _rateid, _flags) { \
31 .bitrate = (_rate), \
32 .flags = (_flags), \
33 .hw_value = (_rateid), \
34 }
35
36 #define CHAN2G(_channel, _freq, _flags) { \
37 .band = IEEE80211_BAND_2GHZ, \
38 .hw_value = (_channel), \
39 .center_freq = (_freq), \
40 .flags = (_flags), \
41 .max_antenna_gain = 0, \
42 .max_power = 30, \
43 }
44
45 #define CHAN5G(_channel, _flags) { \
46 .band = IEEE80211_BAND_5GHZ, \
47 .hw_value = (_channel), \
48 .center_freq = 5000 + (5 * (_channel)), \
49 .flags = (_flags), \
50 .max_antenna_gain = 0, \
51 .max_power = 30, \
52 }
53
54 #define DEFAULT_BG_SCAN_PERIOD 60
55
56 struct ath6kl_cfg80211_match_probe_ssid {
57 struct cfg80211_ssid ssid;
58 u8 flag;
59 };
60
61 static struct ieee80211_rate ath6kl_rates[] = {
62 RATETAB_ENT(10, 0x1, 0),
63 RATETAB_ENT(20, 0x2, 0),
64 RATETAB_ENT(55, 0x4, 0),
65 RATETAB_ENT(110, 0x8, 0),
66 RATETAB_ENT(60, 0x10, 0),
67 RATETAB_ENT(90, 0x20, 0),
68 RATETAB_ENT(120, 0x40, 0),
69 RATETAB_ENT(180, 0x80, 0),
70 RATETAB_ENT(240, 0x100, 0),
71 RATETAB_ENT(360, 0x200, 0),
72 RATETAB_ENT(480, 0x400, 0),
73 RATETAB_ENT(540, 0x800, 0),
74 };
75
76 #define ath6kl_a_rates (ath6kl_rates + 4)
77 #define ath6kl_a_rates_size 8
78 #define ath6kl_g_rates (ath6kl_rates + 0)
79 #define ath6kl_g_rates_size 12
80
81 #define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20
82 #define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \
83 IEEE80211_HT_CAP_SGI_20 | \
84 IEEE80211_HT_CAP_SGI_40)
85
86 static struct ieee80211_channel ath6kl_2ghz_channels[] = {
87 CHAN2G(1, 2412, 0),
88 CHAN2G(2, 2417, 0),
89 CHAN2G(3, 2422, 0),
90 CHAN2G(4, 2427, 0),
91 CHAN2G(5, 2432, 0),
92 CHAN2G(6, 2437, 0),
93 CHAN2G(7, 2442, 0),
94 CHAN2G(8, 2447, 0),
95 CHAN2G(9, 2452, 0),
96 CHAN2G(10, 2457, 0),
97 CHAN2G(11, 2462, 0),
98 CHAN2G(12, 2467, 0),
99 CHAN2G(13, 2472, 0),
100 CHAN2G(14, 2484, 0),
101 };
102
103 static struct ieee80211_channel ath6kl_5ghz_a_channels[] = {
104 CHAN5G(34, 0), CHAN5G(36, 0),
105 CHAN5G(38, 0), CHAN5G(40, 0),
106 CHAN5G(42, 0), CHAN5G(44, 0),
107 CHAN5G(46, 0), CHAN5G(48, 0),
108 CHAN5G(52, 0), CHAN5G(56, 0),
109 CHAN5G(60, 0), CHAN5G(64, 0),
110 CHAN5G(100, 0), CHAN5G(104, 0),
111 CHAN5G(108, 0), CHAN5G(112, 0),
112 CHAN5G(116, 0), CHAN5G(120, 0),
113 CHAN5G(124, 0), CHAN5G(128, 0),
114 CHAN5G(132, 0), CHAN5G(136, 0),
115 CHAN5G(140, 0), CHAN5G(149, 0),
116 CHAN5G(153, 0), CHAN5G(157, 0),
117 CHAN5G(161, 0), CHAN5G(165, 0),
118 CHAN5G(184, 0), CHAN5G(188, 0),
119 CHAN5G(192, 0), CHAN5G(196, 0),
120 CHAN5G(200, 0), CHAN5G(204, 0),
121 CHAN5G(208, 0), CHAN5G(212, 0),
122 CHAN5G(216, 0),
123 };
124
125 static struct ieee80211_supported_band ath6kl_band_2ghz = {
126 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels),
127 .channels = ath6kl_2ghz_channels,
128 .n_bitrates = ath6kl_g_rates_size,
129 .bitrates = ath6kl_g_rates,
130 .ht_cap.cap = ath6kl_g_htcap,
131 .ht_cap.ht_supported = true,
132 };
133
134 static struct ieee80211_supported_band ath6kl_band_5ghz = {
135 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels),
136 .channels = ath6kl_5ghz_a_channels,
137 .n_bitrates = ath6kl_a_rates_size,
138 .bitrates = ath6kl_a_rates,
139 .ht_cap.cap = ath6kl_a_htcap,
140 .ht_cap.ht_supported = true,
141 };
142
143 #define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */
144
145 /* returns true if scheduled scan was stopped */
146 static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif)
147 {
148 struct ath6kl *ar = vif->ar;
149
150 if (ar->state != ATH6KL_STATE_SCHED_SCAN)
151 return false;
152
153 del_timer_sync(&vif->sched_scan_timer);
154
155 ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
156 ATH6KL_HOST_MODE_AWAKE);
157
158 ar->state = ATH6KL_STATE_ON;
159
160 return true;
161 }
162
163 static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif)
164 {
165 struct ath6kl *ar = vif->ar;
166 bool stopped;
167
168 stopped = __ath6kl_cfg80211_sscan_stop(vif);
169
170 if (!stopped)
171 return;
172
173 cfg80211_sched_scan_stopped(ar->wiphy);
174 }
175
176 static int ath6kl_set_wpa_version(struct ath6kl_vif *vif,
177 enum nl80211_wpa_versions wpa_version)
178 {
179 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version);
180
181 if (!wpa_version) {
182 vif->auth_mode = NONE_AUTH;
183 } else if (wpa_version & NL80211_WPA_VERSION_2) {
184 vif->auth_mode = WPA2_AUTH;
185 } else if (wpa_version & NL80211_WPA_VERSION_1) {
186 vif->auth_mode = WPA_AUTH;
187 } else {
188 ath6kl_err("%s: %u not supported\n", __func__, wpa_version);
189 return -ENOTSUPP;
190 }
191
192 return 0;
193 }
194
195 static int ath6kl_set_auth_type(struct ath6kl_vif *vif,
196 enum nl80211_auth_type auth_type)
197 {
198 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type);
199
200 switch (auth_type) {
201 case NL80211_AUTHTYPE_OPEN_SYSTEM:
202 vif->dot11_auth_mode = OPEN_AUTH;
203 break;
204 case NL80211_AUTHTYPE_SHARED_KEY:
205 vif->dot11_auth_mode = SHARED_AUTH;
206 break;
207 case NL80211_AUTHTYPE_NETWORK_EAP:
208 vif->dot11_auth_mode = LEAP_AUTH;
209 break;
210
211 case NL80211_AUTHTYPE_AUTOMATIC:
212 vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH;
213 break;
214
215 default:
216 ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type);
217 return -ENOTSUPP;
218 }
219
220 return 0;
221 }
222
223 static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast)
224 {
225 u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto;
226 u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len :
227 &vif->grp_crypto_len;
228
229 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n",
230 __func__, cipher, ucast);
231
232 switch (cipher) {
233 case 0:
234 /* our own hack to use value 0 as no crypto used */
235 *ar_cipher = NONE_CRYPT;
236 *ar_cipher_len = 0;
237 break;
238 case WLAN_CIPHER_SUITE_WEP40:
239 *ar_cipher = WEP_CRYPT;
240 *ar_cipher_len = 5;
241 break;
242 case WLAN_CIPHER_SUITE_WEP104:
243 *ar_cipher = WEP_CRYPT;
244 *ar_cipher_len = 13;
245 break;
246 case WLAN_CIPHER_SUITE_TKIP:
247 *ar_cipher = TKIP_CRYPT;
248 *ar_cipher_len = 0;
249 break;
250 case WLAN_CIPHER_SUITE_CCMP:
251 *ar_cipher = AES_CRYPT;
252 *ar_cipher_len = 0;
253 break;
254 case WLAN_CIPHER_SUITE_SMS4:
255 *ar_cipher = WAPI_CRYPT;
256 *ar_cipher_len = 0;
257 break;
258 default:
259 ath6kl_err("cipher 0x%x not supported\n", cipher);
260 return -ENOTSUPP;
261 }
262
263 return 0;
264 }
265
266 static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt)
267 {
268 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt);
269
270 if (key_mgmt == WLAN_AKM_SUITE_PSK) {
271 if (vif->auth_mode == WPA_AUTH)
272 vif->auth_mode = WPA_PSK_AUTH;
273 else if (vif->auth_mode == WPA2_AUTH)
274 vif->auth_mode = WPA2_PSK_AUTH;
275 } else if (key_mgmt == 0x00409600) {
276 if (vif->auth_mode == WPA_AUTH)
277 vif->auth_mode = WPA_AUTH_CCKM;
278 else if (vif->auth_mode == WPA2_AUTH)
279 vif->auth_mode = WPA2_AUTH_CCKM;
280 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) {
281 vif->auth_mode = NONE_AUTH;
282 }
283 }
284
285 static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif)
286 {
287 struct ath6kl *ar = vif->ar;
288
289 if (!test_bit(WMI_READY, &ar->flag)) {
290 ath6kl_err("wmi is not ready\n");
291 return false;
292 }
293
294 if (!test_bit(WLAN_ENABLED, &vif->flags)) {
295 ath6kl_err("wlan disabled\n");
296 return false;
297 }
298
299 return true;
300 }
301
302 static bool ath6kl_is_wpa_ie(const u8 *pos)
303 {
304 return pos[0] == WLAN_EID_WPA && pos[1] >= 4 &&
305 pos[2] == 0x00 && pos[3] == 0x50 &&
306 pos[4] == 0xf2 && pos[5] == 0x01;
307 }
308
309 static bool ath6kl_is_rsn_ie(const u8 *pos)
310 {
311 return pos[0] == WLAN_EID_RSN;
312 }
313
314 static bool ath6kl_is_wps_ie(const u8 *pos)
315 {
316 return (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
317 pos[1] >= 4 &&
318 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 &&
319 pos[5] == 0x04);
320 }
321
322 static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies,
323 size_t ies_len)
324 {
325 struct ath6kl *ar = vif->ar;
326 const u8 *pos;
327 u8 *buf = NULL;
328 size_t len = 0;
329 int ret;
330
331 /*
332 * Clear previously set flag
333 */
334
335 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
336
337 /*
338 * Filter out RSN/WPA IE(s)
339 */
340
341 if (ies && ies_len) {
342 buf = kmalloc(ies_len, GFP_KERNEL);
343 if (buf == NULL)
344 return -ENOMEM;
345 pos = ies;
346
347 while (pos + 1 < ies + ies_len) {
348 if (pos + 2 + pos[1] > ies + ies_len)
349 break;
350 if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) {
351 memcpy(buf + len, pos, 2 + pos[1]);
352 len += 2 + pos[1];
353 }
354
355 if (ath6kl_is_wps_ie(pos))
356 ar->connect_ctrl_flags |= CONNECT_WPS_FLAG;
357
358 pos += 2 + pos[1];
359 }
360 }
361
362 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
363 WMI_FRAME_ASSOC_REQ, buf, len);
364 kfree(buf);
365 return ret;
366 }
367
368 static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type)
369 {
370 switch (type) {
371 case NL80211_IFTYPE_STATION:
372 *nw_type = INFRA_NETWORK;
373 break;
374 case NL80211_IFTYPE_ADHOC:
375 *nw_type = ADHOC_NETWORK;
376 break;
377 case NL80211_IFTYPE_AP:
378 *nw_type = AP_NETWORK;
379 break;
380 case NL80211_IFTYPE_P2P_CLIENT:
381 *nw_type = INFRA_NETWORK;
382 break;
383 case NL80211_IFTYPE_P2P_GO:
384 *nw_type = AP_NETWORK;
385 break;
386 default:
387 ath6kl_err("invalid interface type %u\n", type);
388 return -ENOTSUPP;
389 }
390
391 return 0;
392 }
393
394 static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type,
395 u8 *if_idx, u8 *nw_type)
396 {
397 int i;
398
399 if (ath6kl_nliftype_to_drv_iftype(type, nw_type))
400 return false;
401
402 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) &&
403 ar->num_vif))
404 return false;
405
406 if (type == NL80211_IFTYPE_STATION ||
407 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) {
408 for (i = 0; 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 if (type == NL80211_IFTYPE_P2P_CLIENT ||
417 type == NL80211_IFTYPE_P2P_GO) {
418 for (i = ar->max_norm_iface; i < ar->vif_max; i++) {
419 if ((ar->avail_idx_map >> i) & BIT(0)) {
420 *if_idx = i;
421 return true;
422 }
423 }
424 }
425
426 return false;
427 }
428
429 static bool ath6kl_is_tx_pending(struct ath6kl *ar)
430 {
431 return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0;
432 }
433
434
435 static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
436 struct cfg80211_connect_params *sme)
437 {
438 struct ath6kl *ar = ath6kl_priv(dev);
439 struct ath6kl_vif *vif = netdev_priv(dev);
440 int status;
441 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE;
442 u16 interval;
443
444 ath6kl_cfg80211_sscan_disable(vif);
445
446 vif->sme_state = SME_CONNECTING;
447
448 if (!ath6kl_cfg80211_ready(vif))
449 return -EIO;
450
451 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
452 ath6kl_err("destroy in progress\n");
453 return -EBUSY;
454 }
455
456 if (test_bit(SKIP_SCAN, &ar->flag) &&
457 ((sme->channel && sme->channel->center_freq == 0) ||
458 (sme->bssid && is_zero_ether_addr(sme->bssid)))) {
459 ath6kl_err("SkipScan: channel or bssid invalid\n");
460 return -EINVAL;
461 }
462
463 if (down_interruptible(&ar->sem)) {
464 ath6kl_err("busy, couldn't get access\n");
465 return -ERESTARTSYS;
466 }
467
468 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
469 ath6kl_err("busy, destroy in progress\n");
470 up(&ar->sem);
471 return -EBUSY;
472 }
473
474 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) {
475 /*
476 * sleep until the command queue drains
477 */
478 wait_event_interruptible_timeout(ar->event_wq,
479 ath6kl_is_tx_pending(ar),
480 WMI_TIMEOUT);
481 if (signal_pending(current)) {
482 ath6kl_err("cmd queue drain timeout\n");
483 up(&ar->sem);
484 return -EINTR;
485 }
486 }
487
488 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len);
489 if (status) {
490 up(&ar->sem);
491 return status;
492 }
493
494 if (sme->ie == NULL || sme->ie_len == 0)
495 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
496
497 if (test_bit(CONNECTED, &vif->flags) &&
498 vif->ssid_len == sme->ssid_len &&
499 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
500 vif->reconnect_flag = true;
501 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx,
502 vif->req_bssid,
503 vif->ch_hint);
504
505 up(&ar->sem);
506 if (status) {
507 ath6kl_err("wmi_reconnect_cmd failed\n");
508 return -EIO;
509 }
510 return 0;
511 } else if (vif->ssid_len == sme->ssid_len &&
512 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
513 ath6kl_disconnect(vif);
514 }
515
516 memset(vif->ssid, 0, sizeof(vif->ssid));
517 vif->ssid_len = sme->ssid_len;
518 memcpy(vif->ssid, sme->ssid, sme->ssid_len);
519
520 if (sme->channel)
521 vif->ch_hint = sme->channel->center_freq;
522
523 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
524 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid))
525 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid));
526
527 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions);
528
529 status = ath6kl_set_auth_type(vif, sme->auth_type);
530 if (status) {
531 up(&ar->sem);
532 return status;
533 }
534
535 if (sme->crypto.n_ciphers_pairwise)
536 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true);
537 else
538 ath6kl_set_cipher(vif, 0, true);
539
540 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false);
541
542 if (sme->crypto.n_akm_suites)
543 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]);
544
545 if ((sme->key_len) &&
546 (vif->auth_mode == NONE_AUTH) &&
547 (vif->prwise_crypto == WEP_CRYPT)) {
548 struct ath6kl_key *key = NULL;
549
550 if (sme->key_idx > WMI_MAX_KEY_INDEX) {
551 ath6kl_err("key index %d out of bounds\n",
552 sme->key_idx);
553 up(&ar->sem);
554 return -ENOENT;
555 }
556
557 key = &vif->keys[sme->key_idx];
558 key->key_len = sme->key_len;
559 memcpy(key->key, sme->key, key->key_len);
560 key->cipher = vif->prwise_crypto;
561 vif->def_txkey_index = sme->key_idx;
562
563 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx,
564 vif->prwise_crypto,
565 GROUP_USAGE | TX_USAGE,
566 key->key_len,
567 NULL, 0,
568 key->key, KEY_OP_INIT_VAL, NULL,
569 NO_SYNC_WMIFLAG);
570 }
571
572 if (!ar->usr_bss_filter) {
573 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
574 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
575 ALL_BSS_FILTER, 0) != 0) {
576 ath6kl_err("couldn't set bss filtering\n");
577 up(&ar->sem);
578 return -EIO;
579 }
580 }
581
582 vif->nw_type = vif->next_mode;
583
584 /* enable enhanced bmiss detection if applicable */
585 ath6kl_cfg80211_sta_bmiss_enhance(vif, true);
586
587 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT)
588 nw_subtype = SUBTYPE_P2PCLIENT;
589
590 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
591 "%s: connect called with authmode %d dot11 auth %d"
592 " PW crypto %d PW crypto len %d GRP crypto %d"
593 " GRP crypto len %d channel hint %u\n",
594 __func__,
595 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
596 vif->prwise_crypto_len, vif->grp_crypto,
597 vif->grp_crypto_len, vif->ch_hint);
598
599 vif->reconnect_flag = 0;
600
601 if (vif->nw_type == INFRA_NETWORK) {
602 interval = max_t(u16, vif->listen_intvl_t,
603 ATH6KL_MAX_WOW_LISTEN_INTL);
604 status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
605 interval,
606 0);
607 if (status) {
608 ath6kl_err("couldn't set listen intervel\n");
609 up(&ar->sem);
610 return status;
611 }
612 }
613
614 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
615 vif->dot11_auth_mode, vif->auth_mode,
616 vif->prwise_crypto,
617 vif->prwise_crypto_len,
618 vif->grp_crypto, vif->grp_crypto_len,
619 vif->ssid_len, vif->ssid,
620 vif->req_bssid, vif->ch_hint,
621 ar->connect_ctrl_flags, nw_subtype);
622
623 /* disable background scan if period is 0 */
624 if (sme->bg_scan_period == 0)
625 sme->bg_scan_period = 0xffff;
626
627 /* configure default value if not specified */
628 if (sme->bg_scan_period == -1)
629 sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
630
631 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0,
632 sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
633
634 up(&ar->sem);
635
636 if (status == -EINVAL) {
637 memset(vif->ssid, 0, sizeof(vif->ssid));
638 vif->ssid_len = 0;
639 ath6kl_err("invalid request\n");
640 return -ENOENT;
641 } else if (status) {
642 ath6kl_err("ath6kl_wmi_connect_cmd failed\n");
643 return -EIO;
644 }
645
646 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) &&
647 ((vif->auth_mode == WPA_PSK_AUTH) ||
648 (vif->auth_mode == WPA2_PSK_AUTH))) {
649 mod_timer(&vif->disconnect_timer,
650 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL));
651 }
652
653 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD;
654 set_bit(CONNECT_PEND, &vif->flags);
655
656 return 0;
657 }
658
659 static struct cfg80211_bss *
660 ath6kl_add_bss_if_needed(struct ath6kl_vif *vif,
661 enum network_type nw_type,
662 const u8 *bssid,
663 struct ieee80211_channel *chan,
664 const u8 *beacon_ie,
665 size_t beacon_ie_len)
666 {
667 struct ath6kl *ar = vif->ar;
668 struct cfg80211_bss *bss;
669 u16 cap_mask, cap_val;
670 u8 *ie;
671
672 if (nw_type & ADHOC_NETWORK) {
673 cap_mask = WLAN_CAPABILITY_IBSS;
674 cap_val = WLAN_CAPABILITY_IBSS;
675 } else {
676 cap_mask = WLAN_CAPABILITY_ESS;
677 cap_val = WLAN_CAPABILITY_ESS;
678 }
679
680 bss = cfg80211_get_bss(ar->wiphy, chan, bssid,
681 vif->ssid, vif->ssid_len,
682 cap_mask, cap_val);
683 if (bss == NULL) {
684 /*
685 * Since cfg80211 may not yet know about the BSS,
686 * generate a partial entry until the first BSS info
687 * event becomes available.
688 *
689 * Prepend SSID element since it is not included in the Beacon
690 * IEs from the target.
691 */
692 ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL);
693 if (ie == NULL)
694 return NULL;
695 ie[0] = WLAN_EID_SSID;
696 ie[1] = vif->ssid_len;
697 memcpy(ie + 2, vif->ssid, vif->ssid_len);
698 memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len);
699 bss = cfg80211_inform_bss(ar->wiphy, chan,
700 bssid, 0, cap_val, 100,
701 ie, 2 + vif->ssid_len + beacon_ie_len,
702 0, GFP_KERNEL);
703 if (bss)
704 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
705 "added bss %pM to cfg80211\n", bssid);
706 kfree(ie);
707 } else
708 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n");
709
710 return bss;
711 }
712
713 void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel,
714 u8 *bssid, u16 listen_intvl,
715 u16 beacon_intvl,
716 enum network_type nw_type,
717 u8 beacon_ie_len, u8 assoc_req_len,
718 u8 assoc_resp_len, u8 *assoc_info)
719 {
720 struct ieee80211_channel *chan;
721 struct ath6kl *ar = vif->ar;
722 struct cfg80211_bss *bss;
723
724 /* capinfo + listen interval */
725 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16);
726
727 /* capinfo + status code + associd */
728 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16);
729
730 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset;
731 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len +
732 assoc_resp_ie_offset;
733
734 assoc_req_len -= assoc_req_ie_offset;
735 assoc_resp_len -= assoc_resp_ie_offset;
736
737 /*
738 * Store Beacon interval here; DTIM period will be available only once
739 * a Beacon frame from the AP is seen.
740 */
741 vif->assoc_bss_beacon_int = beacon_intvl;
742 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags);
743
744 if (nw_type & ADHOC_NETWORK) {
745 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) {
746 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
747 "%s: ath6k not in ibss mode\n", __func__);
748 return;
749 }
750 }
751
752 if (nw_type & INFRA_NETWORK) {
753 if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
754 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
755 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
756 "%s: ath6k not in station mode\n", __func__);
757 return;
758 }
759 }
760
761 chan = ieee80211_get_channel(ar->wiphy, (int) channel);
762
763 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan,
764 assoc_info, beacon_ie_len);
765 if (!bss) {
766 ath6kl_err("could not add cfg80211 bss entry\n");
767 return;
768 }
769
770 if (nw_type & ADHOC_NETWORK) {
771 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n",
772 nw_type & ADHOC_CREATOR ? "creator" : "joiner");
773 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL);
774 cfg80211_put_bss(bss);
775 return;
776 }
777
778 if (vif->sme_state == SME_CONNECTING) {
779 /* inform connect result to cfg80211 */
780 vif->sme_state = SME_CONNECTED;
781 cfg80211_connect_result(vif->ndev, bssid,
782 assoc_req_ie, assoc_req_len,
783 assoc_resp_ie, assoc_resp_len,
784 WLAN_STATUS_SUCCESS, GFP_KERNEL);
785 cfg80211_put_bss(bss);
786 } else if (vif->sme_state == SME_CONNECTED) {
787 /* inform roam event to cfg80211 */
788 cfg80211_roamed_bss(vif->ndev, bss, assoc_req_ie, assoc_req_len,
789 assoc_resp_ie, assoc_resp_len, GFP_KERNEL);
790 }
791 }
792
793 static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy,
794 struct net_device *dev, u16 reason_code)
795 {
796 struct ath6kl *ar = ath6kl_priv(dev);
797 struct ath6kl_vif *vif = netdev_priv(dev);
798
799 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__,
800 reason_code);
801
802 ath6kl_cfg80211_sscan_disable(vif);
803
804 if (!ath6kl_cfg80211_ready(vif))
805 return -EIO;
806
807 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
808 ath6kl_err("busy, destroy in progress\n");
809 return -EBUSY;
810 }
811
812 if (down_interruptible(&ar->sem)) {
813 ath6kl_err("busy, couldn't get access\n");
814 return -ERESTARTSYS;
815 }
816
817 vif->reconnect_flag = 0;
818 ath6kl_disconnect(vif);
819 memset(vif->ssid, 0, sizeof(vif->ssid));
820 vif->ssid_len = 0;
821
822 if (!test_bit(SKIP_SCAN, &ar->flag))
823 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
824
825 up(&ar->sem);
826
827 vif->sme_state = SME_DISCONNECTED;
828
829 return 0;
830 }
831
832 void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason,
833 u8 *bssid, u8 assoc_resp_len,
834 u8 *assoc_info, u16 proto_reason)
835 {
836 struct ath6kl *ar = vif->ar;
837
838 if (vif->scan_req) {
839 cfg80211_scan_done(vif->scan_req, true);
840 vif->scan_req = NULL;
841 }
842
843 if (vif->nw_type & ADHOC_NETWORK) {
844 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) {
845 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
846 "%s: ath6k not in ibss mode\n", __func__);
847 return;
848 }
849 memset(bssid, 0, ETH_ALEN);
850 cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL);
851 return;
852 }
853
854 if (vif->nw_type & INFRA_NETWORK) {
855 if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
856 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
857 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
858 "%s: ath6k not in station mode\n", __func__);
859 return;
860 }
861 }
862
863 clear_bit(CONNECT_PEND, &vif->flags);
864
865 if (vif->sme_state == SME_CONNECTING) {
866 cfg80211_connect_result(vif->ndev,
867 bssid, NULL, 0,
868 NULL, 0,
869 WLAN_STATUS_UNSPECIFIED_FAILURE,
870 GFP_KERNEL);
871 } else if (vif->sme_state == SME_CONNECTED) {
872 cfg80211_disconnected(vif->ndev, proto_reason,
873 NULL, 0, GFP_KERNEL);
874 }
875
876 vif->sme_state = SME_DISCONNECTED;
877
878 /*
879 * Send a disconnect command to target when a disconnect event is
880 * received with reason code other than 3 (DISCONNECT_CMD - disconnect
881 * request from host) to make the firmware stop trying to connect even
882 * after giving disconnect event. There will be one more disconnect
883 * event for this disconnect command with reason code DISCONNECT_CMD
884 * which won't be notified to cfg80211.
885 */
886 if (reason != DISCONNECT_CMD)
887 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
888 }
889
890 static int ath6kl_set_probed_ssids(struct ath6kl *ar,
891 struct ath6kl_vif *vif,
892 struct cfg80211_ssid *ssids, int n_ssids,
893 struct cfg80211_match_set *match_set,
894 int n_match_ssid)
895 {
896 u8 i, j, index_to_add, ssid_found = false;
897 struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS];
898
899 memset(ssid_list, 0, sizeof(ssid_list));
900
901 if (n_ssids > MAX_PROBED_SSIDS ||
902 n_match_ssid > MAX_PROBED_SSIDS)
903 return -EINVAL;
904
905 for (i = 0; i < n_ssids; i++) {
906 memcpy(ssid_list[i].ssid.ssid,
907 ssids[i].ssid,
908 ssids[i].ssid_len);
909 ssid_list[i].ssid.ssid_len = ssids[i].ssid_len;
910
911 if (ssids[i].ssid_len)
912 ssid_list[i].flag = SPECIFIC_SSID_FLAG;
913 else
914 ssid_list[i].flag = ANY_SSID_FLAG;
915
916 if (n_match_ssid == 0)
917 ssid_list[i].flag |= MATCH_SSID_FLAG;
918 }
919
920 index_to_add = i;
921
922 for (i = 0; i < n_match_ssid; i++) {
923 ssid_found = false;
924
925 for (j = 0; j < n_ssids; j++) {
926 if ((match_set[i].ssid.ssid_len ==
927 ssid_list[j].ssid.ssid_len) &&
928 (!memcmp(ssid_list[j].ssid.ssid,
929 match_set[i].ssid.ssid,
930 match_set[i].ssid.ssid_len))) {
931 ssid_list[j].flag |= MATCH_SSID_FLAG;
932 ssid_found = true;
933 break;
934 }
935 }
936
937 if (ssid_found)
938 continue;
939
940 if (index_to_add >= MAX_PROBED_SSIDS)
941 continue;
942
943 ssid_list[index_to_add].ssid.ssid_len =
944 match_set[i].ssid.ssid_len;
945 memcpy(ssid_list[index_to_add].ssid.ssid,
946 match_set[i].ssid.ssid,
947 match_set[i].ssid.ssid_len);
948 ssid_list[index_to_add].flag |= MATCH_SSID_FLAG;
949 index_to_add++;
950 }
951
952 for (i = 0; i < index_to_add; i++) {
953 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i,
954 ssid_list[i].flag,
955 ssid_list[i].ssid.ssid_len,
956 ssid_list[i].ssid.ssid);
957
958 }
959
960 /* Make sure no old entries are left behind */
961 for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) {
962 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i,
963 DISABLE_SSID_FLAG, 0, NULL);
964 }
965
966 return 0;
967 }
968
969 static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
970 struct cfg80211_scan_request *request)
971 {
972 struct ath6kl *ar = ath6kl_priv(ndev);
973 struct ath6kl_vif *vif = netdev_priv(ndev);
974 s8 n_channels = 0;
975 u16 *channels = NULL;
976 int ret = 0;
977 u32 force_fg_scan = 0;
978
979 if (!ath6kl_cfg80211_ready(vif))
980 return -EIO;
981
982 ath6kl_cfg80211_sscan_disable(vif);
983
984 if (!ar->usr_bss_filter) {
985 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
986 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
987 ALL_BSS_FILTER, 0);
988 if (ret) {
989 ath6kl_err("couldn't set bss filtering\n");
990 return ret;
991 }
992 }
993
994 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
995 request->n_ssids, NULL, 0);
996 if (ret < 0)
997 return ret;
998
999 /* this also clears IE in fw if it's not set */
1000 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
1001 WMI_FRAME_PROBE_REQ,
1002 request->ie, request->ie_len);
1003 if (ret) {
1004 ath6kl_err("failed to set Probe Request appie for scan");
1005 return ret;
1006 }
1007
1008 /*
1009 * Scan only the requested channels if the request specifies a set of
1010 * channels. If the list is longer than the target supports, do not
1011 * configure the list and instead, scan all available channels.
1012 */
1013 if (request->n_channels > 0 &&
1014 request->n_channels <= WMI_MAX_CHANNELS) {
1015 u8 i;
1016
1017 n_channels = request->n_channels;
1018
1019 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL);
1020 if (channels == NULL) {
1021 ath6kl_warn("failed to set scan channels, scan all channels");
1022 n_channels = 0;
1023 }
1024
1025 for (i = 0; i < n_channels; i++)
1026 channels[i] = request->channels[i]->center_freq;
1027 }
1028
1029 if (test_bit(CONNECTED, &vif->flags))
1030 force_fg_scan = 1;
1031
1032 vif->scan_req = request;
1033
1034 if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
1035 ar->fw_capabilities)) {
1036 /*
1037 * If capable of doing P2P mgmt operations using
1038 * station interface, send additional information like
1039 * supported rates to advertise and xmit rates for
1040 * probe requests
1041 */
1042 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx,
1043 WMI_LONG_SCAN, force_fg_scan,
1044 false, 0,
1045 ATH6KL_FG_SCAN_INTERVAL,
1046 n_channels, channels,
1047 request->no_cck,
1048 request->rates);
1049 } else {
1050 ret = ath6kl_wmi_startscan_cmd(ar->wmi, vif->fw_vif_idx,
1051 WMI_LONG_SCAN, force_fg_scan,
1052 false, 0,
1053 ATH6KL_FG_SCAN_INTERVAL,
1054 n_channels, channels);
1055 }
1056 if (ret) {
1057 ath6kl_err("wmi_startscan_cmd failed\n");
1058 vif->scan_req = NULL;
1059 }
1060
1061 kfree(channels);
1062
1063 return ret;
1064 }
1065
1066 void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted)
1067 {
1068 struct ath6kl *ar = vif->ar;
1069 int i;
1070
1071 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__,
1072 aborted ? " aborted" : "");
1073
1074 if (!vif->scan_req)
1075 return;
1076
1077 if (aborted)
1078 goto out;
1079
1080 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) {
1081 for (i = 0; i < vif->scan_req->n_ssids; i++) {
1082 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
1083 i + 1, DISABLE_SSID_FLAG,
1084 0, NULL);
1085 }
1086 }
1087
1088 out:
1089 cfg80211_scan_done(vif->scan_req, aborted);
1090 vif->scan_req = NULL;
1091 }
1092
1093 void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq,
1094 enum wmi_phy_mode mode)
1095 {
1096 enum nl80211_channel_type type;
1097
1098 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1099 "channel switch notify nw_type %d freq %d mode %d\n",
1100 vif->nw_type, freq, mode);
1101
1102 type = (mode == WMI_11G_HT20) ? NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT;
1103
1104 cfg80211_ch_switch_notify(vif->ndev, freq, type);
1105 }
1106
1107 static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
1108 u8 key_index, bool pairwise,
1109 const u8 *mac_addr,
1110 struct key_params *params)
1111 {
1112 struct ath6kl *ar = ath6kl_priv(ndev);
1113 struct ath6kl_vif *vif = netdev_priv(ndev);
1114 struct ath6kl_key *key = NULL;
1115 int seq_len;
1116 u8 key_usage;
1117 u8 key_type;
1118
1119 if (!ath6kl_cfg80211_ready(vif))
1120 return -EIO;
1121
1122 if (params->cipher == CCKM_KRK_CIPHER_SUITE) {
1123 if (params->key_len != WMI_KRK_LEN)
1124 return -EINVAL;
1125 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx,
1126 params->key);
1127 }
1128
1129 if (key_index > WMI_MAX_KEY_INDEX) {
1130 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1131 "%s: key index %d out of bounds\n", __func__,
1132 key_index);
1133 return -ENOENT;
1134 }
1135
1136 key = &vif->keys[key_index];
1137 memset(key, 0, sizeof(struct ath6kl_key));
1138
1139 if (pairwise)
1140 key_usage = PAIRWISE_USAGE;
1141 else
1142 key_usage = GROUP_USAGE;
1143
1144 seq_len = params->seq_len;
1145 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 &&
1146 seq_len > ATH6KL_KEY_SEQ_LEN) {
1147 /* Only first half of the WPI PN is configured */
1148 seq_len = ATH6KL_KEY_SEQ_LEN;
1149 }
1150 if (params->key_len > WLAN_MAX_KEY_LEN ||
1151 seq_len > sizeof(key->seq))
1152 return -EINVAL;
1153
1154 key->key_len = params->key_len;
1155 memcpy(key->key, params->key, key->key_len);
1156 key->seq_len = seq_len;
1157 memcpy(key->seq, params->seq, key->seq_len);
1158 key->cipher = params->cipher;
1159
1160 switch (key->cipher) {
1161 case WLAN_CIPHER_SUITE_WEP40:
1162 case WLAN_CIPHER_SUITE_WEP104:
1163 key_type = WEP_CRYPT;
1164 break;
1165
1166 case WLAN_CIPHER_SUITE_TKIP:
1167 key_type = TKIP_CRYPT;
1168 break;
1169
1170 case WLAN_CIPHER_SUITE_CCMP:
1171 key_type = AES_CRYPT;
1172 break;
1173 case WLAN_CIPHER_SUITE_SMS4:
1174 key_type = WAPI_CRYPT;
1175 break;
1176
1177 default:
1178 return -ENOTSUPP;
1179 }
1180
1181 if (((vif->auth_mode == WPA_PSK_AUTH) ||
1182 (vif->auth_mode == WPA2_PSK_AUTH)) &&
1183 (key_usage & GROUP_USAGE))
1184 del_timer(&vif->disconnect_timer);
1185
1186 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1187 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n",
1188 __func__, key_index, key->key_len, key_type,
1189 key_usage, key->seq_len);
1190
1191 if (vif->nw_type == AP_NETWORK && !pairwise &&
1192 (key_type == TKIP_CRYPT || key_type == AES_CRYPT ||
1193 key_type == WAPI_CRYPT)) {
1194 ar->ap_mode_bkey.valid = true;
1195 ar->ap_mode_bkey.key_index = key_index;
1196 ar->ap_mode_bkey.key_type = key_type;
1197 ar->ap_mode_bkey.key_len = key->key_len;
1198 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len);
1199 if (!test_bit(CONNECTED, &vif->flags)) {
1200 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1201 "Delay initial group key configuration until AP mode has been started\n");
1202 /*
1203 * The key will be set in ath6kl_connect_ap_mode() once
1204 * the connected event is received from the target.
1205 */
1206 return 0;
1207 }
1208 }
1209
1210 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT &&
1211 !test_bit(CONNECTED, &vif->flags)) {
1212 /*
1213 * Store the key locally so that it can be re-configured after
1214 * the AP mode has properly started
1215 * (ath6kl_install_statioc_wep_keys).
1216 */
1217 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1218 "Delay WEP key configuration until AP mode has been started\n");
1219 vif->wep_key_list[key_index].key_len = key->key_len;
1220 memcpy(vif->wep_key_list[key_index].key, key->key,
1221 key->key_len);
1222 return 0;
1223 }
1224
1225 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index,
1226 key_type, key_usage, key->key_len,
1227 key->seq, key->seq_len, key->key,
1228 KEY_OP_INIT_VAL,
1229 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG);
1230 }
1231
1232 static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
1233 u8 key_index, bool pairwise,
1234 const u8 *mac_addr)
1235 {
1236 struct ath6kl *ar = ath6kl_priv(ndev);
1237 struct ath6kl_vif *vif = netdev_priv(ndev);
1238
1239 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1240
1241 if (!ath6kl_cfg80211_ready(vif))
1242 return -EIO;
1243
1244 if (key_index > WMI_MAX_KEY_INDEX) {
1245 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1246 "%s: key index %d out of bounds\n", __func__,
1247 key_index);
1248 return -ENOENT;
1249 }
1250
1251 if (!vif->keys[key_index].key_len) {
1252 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1253 "%s: index %d is empty\n", __func__, key_index);
1254 return 0;
1255 }
1256
1257 vif->keys[key_index].key_len = 0;
1258
1259 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index);
1260 }
1261
1262 static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
1263 u8 key_index, bool pairwise,
1264 const u8 *mac_addr, void *cookie,
1265 void (*callback) (void *cookie,
1266 struct key_params *))
1267 {
1268 struct ath6kl_vif *vif = netdev_priv(ndev);
1269 struct ath6kl_key *key = NULL;
1270 struct key_params params;
1271
1272 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1273
1274 if (!ath6kl_cfg80211_ready(vif))
1275 return -EIO;
1276
1277 if (key_index > WMI_MAX_KEY_INDEX) {
1278 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1279 "%s: key index %d out of bounds\n", __func__,
1280 key_index);
1281 return -ENOENT;
1282 }
1283
1284 key = &vif->keys[key_index];
1285 memset(&params, 0, sizeof(params));
1286 params.cipher = key->cipher;
1287 params.key_len = key->key_len;
1288 params.seq_len = key->seq_len;
1289 params.seq = key->seq;
1290 params.key = key->key;
1291
1292 callback(cookie, &params);
1293
1294 return key->key_len ? 0 : -ENOENT;
1295 }
1296
1297 static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy,
1298 struct net_device *ndev,
1299 u8 key_index, bool unicast,
1300 bool multicast)
1301 {
1302 struct ath6kl *ar = ath6kl_priv(ndev);
1303 struct ath6kl_vif *vif = netdev_priv(ndev);
1304 struct ath6kl_key *key = NULL;
1305 u8 key_usage;
1306 enum crypto_type key_type = NONE_CRYPT;
1307
1308 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1309
1310 if (!ath6kl_cfg80211_ready(vif))
1311 return -EIO;
1312
1313 if (key_index > WMI_MAX_KEY_INDEX) {
1314 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1315 "%s: key index %d out of bounds\n",
1316 __func__, key_index);
1317 return -ENOENT;
1318 }
1319
1320 if (!vif->keys[key_index].key_len) {
1321 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n",
1322 __func__, key_index);
1323 return -EINVAL;
1324 }
1325
1326 vif->def_txkey_index = key_index;
1327 key = &vif->keys[vif->def_txkey_index];
1328 key_usage = GROUP_USAGE;
1329 if (vif->prwise_crypto == WEP_CRYPT)
1330 key_usage |= TX_USAGE;
1331 if (unicast)
1332 key_type = vif->prwise_crypto;
1333 if (multicast)
1334 key_type = vif->grp_crypto;
1335
1336 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags))
1337 return 0; /* Delay until AP mode has been started */
1338
1339 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx,
1340 vif->def_txkey_index,
1341 key_type, key_usage,
1342 key->key_len, key->seq, key->seq_len,
1343 key->key,
1344 KEY_OP_INIT_VAL, NULL,
1345 SYNC_BOTH_WMIFLAG);
1346 }
1347
1348 void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid,
1349 bool ismcast)
1350 {
1351 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1352 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast);
1353
1354 cfg80211_michael_mic_failure(vif->ndev, vif->bssid,
1355 (ismcast ? NL80211_KEYTYPE_GROUP :
1356 NL80211_KEYTYPE_PAIRWISE), keyid, NULL,
1357 GFP_KERNEL);
1358 }
1359
1360 static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1361 {
1362 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1363 struct ath6kl_vif *vif;
1364 int ret;
1365
1366 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__,
1367 changed);
1368
1369 vif = ath6kl_vif_first(ar);
1370 if (!vif)
1371 return -EIO;
1372
1373 if (!ath6kl_cfg80211_ready(vif))
1374 return -EIO;
1375
1376 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1377 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold);
1378 if (ret != 0) {
1379 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n");
1380 return -EIO;
1381 }
1382 }
1383
1384 return 0;
1385 }
1386
1387 /*
1388 * The type nl80211_tx_power_setting replaces the following
1389 * data type from 2.6.36 onwards
1390 */
1391 static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy,
1392 enum nl80211_tx_power_setting type,
1393 int mbm)
1394 {
1395 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1396 struct ath6kl_vif *vif;
1397 int dbm = MBM_TO_DBM(mbm);
1398
1399 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__,
1400 type, dbm);
1401
1402 vif = ath6kl_vif_first(ar);
1403 if (!vif)
1404 return -EIO;
1405
1406 if (!ath6kl_cfg80211_ready(vif))
1407 return -EIO;
1408
1409 switch (type) {
1410 case NL80211_TX_POWER_AUTOMATIC:
1411 return 0;
1412 case NL80211_TX_POWER_LIMITED:
1413 ar->tx_pwr = dbm;
1414 break;
1415 default:
1416 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n",
1417 __func__, type);
1418 return -EOPNOTSUPP;
1419 }
1420
1421 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm);
1422
1423 return 0;
1424 }
1425
1426 static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm)
1427 {
1428 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1429 struct ath6kl_vif *vif;
1430
1431 vif = ath6kl_vif_first(ar);
1432 if (!vif)
1433 return -EIO;
1434
1435 if (!ath6kl_cfg80211_ready(vif))
1436 return -EIO;
1437
1438 if (test_bit(CONNECTED, &vif->flags)) {
1439 ar->tx_pwr = 0;
1440
1441 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) {
1442 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n");
1443 return -EIO;
1444 }
1445
1446 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0,
1447 5 * HZ);
1448
1449 if (signal_pending(current)) {
1450 ath6kl_err("target did not respond\n");
1451 return -EINTR;
1452 }
1453 }
1454
1455 *dbm = ar->tx_pwr;
1456 return 0;
1457 }
1458
1459 static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
1460 struct net_device *dev,
1461 bool pmgmt, int timeout)
1462 {
1463 struct ath6kl *ar = ath6kl_priv(dev);
1464 struct wmi_power_mode_cmd mode;
1465 struct ath6kl_vif *vif = netdev_priv(dev);
1466
1467 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",
1468 __func__, pmgmt, timeout);
1469
1470 if (!ath6kl_cfg80211_ready(vif))
1471 return -EIO;
1472
1473 if (pmgmt) {
1474 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);
1475 mode.pwr_mode = REC_POWER;
1476 } else {
1477 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);
1478 mode.pwr_mode = MAX_PERF_POWER;
1479 }
1480
1481 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx,
1482 mode.pwr_mode) != 0) {
1483 ath6kl_err("wmi_powermode_cmd failed\n");
1484 return -EIO;
1485 }
1486
1487 return 0;
1488 }
1489
1490 static struct net_device *ath6kl_cfg80211_add_iface(struct wiphy *wiphy,
1491 char *name,
1492 enum nl80211_iftype type,
1493 u32 *flags,
1494 struct vif_params *params)
1495 {
1496 struct ath6kl *ar = wiphy_priv(wiphy);
1497 struct net_device *ndev;
1498 u8 if_idx, nw_type;
1499
1500 if (ar->num_vif == ar->vif_max) {
1501 ath6kl_err("Reached maximum number of supported vif\n");
1502 return ERR_PTR(-EINVAL);
1503 }
1504
1505 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) {
1506 ath6kl_err("Not a supported interface type\n");
1507 return ERR_PTR(-EINVAL);
1508 }
1509
1510 ndev = ath6kl_interface_add(ar, name, type, if_idx, nw_type);
1511 if (!ndev)
1512 return ERR_PTR(-ENOMEM);
1513
1514 ar->num_vif++;
1515
1516 return ndev;
1517 }
1518
1519 static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy,
1520 struct net_device *ndev)
1521 {
1522 struct ath6kl *ar = wiphy_priv(wiphy);
1523 struct ath6kl_vif *vif = netdev_priv(ndev);
1524
1525 spin_lock_bh(&ar->list_lock);
1526 list_del(&vif->list);
1527 spin_unlock_bh(&ar->list_lock);
1528
1529 ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag));
1530
1531 ath6kl_cfg80211_vif_cleanup(vif);
1532
1533 return 0;
1534 }
1535
1536 static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
1537 struct net_device *ndev,
1538 enum nl80211_iftype type, u32 *flags,
1539 struct vif_params *params)
1540 {
1541 struct ath6kl_vif *vif = netdev_priv(ndev);
1542 int i;
1543
1544 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
1545
1546 /*
1547 * Don't bring up p2p on an interface which is not initialized
1548 * for p2p operation where fw does not have capability to switch
1549 * dynamically between non-p2p and p2p type interface.
1550 */
1551 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
1552 vif->ar->fw_capabilities) &&
1553 (type == NL80211_IFTYPE_P2P_CLIENT ||
1554 type == NL80211_IFTYPE_P2P_GO)) {
1555 if (vif->ar->vif_max == 1) {
1556 if (vif->fw_vif_idx != 0)
1557 return -EINVAL;
1558 else
1559 goto set_iface_type;
1560 }
1561
1562 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) {
1563 if (i == vif->fw_vif_idx)
1564 break;
1565 }
1566
1567 if (i == vif->ar->vif_max) {
1568 ath6kl_err("Invalid interface to bring up P2P\n");
1569 return -EINVAL;
1570 }
1571 }
1572
1573 /* need to clean up enhanced bmiss detection fw state */
1574 ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
1575
1576 set_iface_type:
1577 switch (type) {
1578 case NL80211_IFTYPE_STATION:
1579 vif->next_mode = INFRA_NETWORK;
1580 break;
1581 case NL80211_IFTYPE_ADHOC:
1582 vif->next_mode = ADHOC_NETWORK;
1583 break;
1584 case NL80211_IFTYPE_AP:
1585 vif->next_mode = AP_NETWORK;
1586 break;
1587 case NL80211_IFTYPE_P2P_CLIENT:
1588 vif->next_mode = INFRA_NETWORK;
1589 break;
1590 case NL80211_IFTYPE_P2P_GO:
1591 vif->next_mode = AP_NETWORK;
1592 break;
1593 default:
1594 ath6kl_err("invalid interface type %u\n", type);
1595 return -EOPNOTSUPP;
1596 }
1597
1598 vif->wdev.iftype = type;
1599
1600 return 0;
1601 }
1602
1603 static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,
1604 struct net_device *dev,
1605 struct cfg80211_ibss_params *ibss_param)
1606 {
1607 struct ath6kl *ar = ath6kl_priv(dev);
1608 struct ath6kl_vif *vif = netdev_priv(dev);
1609 int status;
1610
1611 if (!ath6kl_cfg80211_ready(vif))
1612 return -EIO;
1613
1614 vif->ssid_len = ibss_param->ssid_len;
1615 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len);
1616
1617 if (ibss_param->channel)
1618 vif->ch_hint = ibss_param->channel->center_freq;
1619
1620 if (ibss_param->channel_fixed) {
1621 /*
1622 * TODO: channel_fixed: The channel should be fixed, do not
1623 * search for IBSSs to join on other channels. Target
1624 * firmware does not support this feature, needs to be
1625 * updated.
1626 */
1627 return -EOPNOTSUPP;
1628 }
1629
1630 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
1631 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))
1632 memcpy(vif->req_bssid, ibss_param->bssid,
1633 sizeof(vif->req_bssid));
1634
1635 ath6kl_set_wpa_version(vif, 0);
1636
1637 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM);
1638 if (status)
1639 return status;
1640
1641 if (ibss_param->privacy) {
1642 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true);
1643 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false);
1644 } else {
1645 ath6kl_set_cipher(vif, 0, true);
1646 ath6kl_set_cipher(vif, 0, false);
1647 }
1648
1649 vif->nw_type = vif->next_mode;
1650
1651 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1652 "%s: connect called with authmode %d dot11 auth %d"
1653 " PW crypto %d PW crypto len %d GRP crypto %d"
1654 " GRP crypto len %d channel hint %u\n",
1655 __func__,
1656 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
1657 vif->prwise_crypto_len, vif->grp_crypto,
1658 vif->grp_crypto_len, vif->ch_hint);
1659
1660 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
1661 vif->dot11_auth_mode, vif->auth_mode,
1662 vif->prwise_crypto,
1663 vif->prwise_crypto_len,
1664 vif->grp_crypto, vif->grp_crypto_len,
1665 vif->ssid_len, vif->ssid,
1666 vif->req_bssid, vif->ch_hint,
1667 ar->connect_ctrl_flags, SUBTYPE_NONE);
1668 set_bit(CONNECT_PEND, &vif->flags);
1669
1670 return 0;
1671 }
1672
1673 static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,
1674 struct net_device *dev)
1675 {
1676 struct ath6kl_vif *vif = netdev_priv(dev);
1677
1678 if (!ath6kl_cfg80211_ready(vif))
1679 return -EIO;
1680
1681 ath6kl_disconnect(vif);
1682 memset(vif->ssid, 0, sizeof(vif->ssid));
1683 vif->ssid_len = 0;
1684
1685 return 0;
1686 }
1687
1688 static const u32 cipher_suites[] = {
1689 WLAN_CIPHER_SUITE_WEP40,
1690 WLAN_CIPHER_SUITE_WEP104,
1691 WLAN_CIPHER_SUITE_TKIP,
1692 WLAN_CIPHER_SUITE_CCMP,
1693 CCKM_KRK_CIPHER_SUITE,
1694 WLAN_CIPHER_SUITE_SMS4,
1695 };
1696
1697 static bool is_rate_legacy(s32 rate)
1698 {
1699 static const s32 legacy[] = { 1000, 2000, 5500, 11000,
1700 6000, 9000, 12000, 18000, 24000,
1701 36000, 48000, 54000
1702 };
1703 u8 i;
1704
1705 for (i = 0; i < ARRAY_SIZE(legacy); i++)
1706 if (rate == legacy[i])
1707 return true;
1708
1709 return false;
1710 }
1711
1712 static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
1713 {
1714 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
1715 52000, 58500, 65000, 72200
1716 };
1717 u8 i;
1718
1719 for (i = 0; i < ARRAY_SIZE(ht20); i++) {
1720 if (rate == ht20[i]) {
1721 if (i == ARRAY_SIZE(ht20) - 1)
1722 /* last rate uses sgi */
1723 *sgi = true;
1724 else
1725 *sgi = false;
1726
1727 *mcs = i;
1728 return true;
1729 }
1730 }
1731 return false;
1732 }
1733
1734 static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
1735 {
1736 static const s32 ht40[] = { 13500, 27000, 40500, 54000,
1737 81000, 108000, 121500, 135000,
1738 150000
1739 };
1740 u8 i;
1741
1742 for (i = 0; i < ARRAY_SIZE(ht40); i++) {
1743 if (rate == ht40[i]) {
1744 if (i == ARRAY_SIZE(ht40) - 1)
1745 /* last rate uses sgi */
1746 *sgi = true;
1747 else
1748 *sgi = false;
1749
1750 *mcs = i;
1751 return true;
1752 }
1753 }
1754
1755 return false;
1756 }
1757
1758 static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,
1759 u8 *mac, struct station_info *sinfo)
1760 {
1761 struct ath6kl *ar = ath6kl_priv(dev);
1762 struct ath6kl_vif *vif = netdev_priv(dev);
1763 long left;
1764 bool sgi;
1765 s32 rate;
1766 int ret;
1767 u8 mcs;
1768
1769 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0)
1770 return -ENOENT;
1771
1772 if (down_interruptible(&ar->sem))
1773 return -EBUSY;
1774
1775 set_bit(STATS_UPDATE_PEND, &vif->flags);
1776
1777 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx);
1778
1779 if (ret != 0) {
1780 up(&ar->sem);
1781 return -EIO;
1782 }
1783
1784 left = wait_event_interruptible_timeout(ar->event_wq,
1785 !test_bit(STATS_UPDATE_PEND,
1786 &vif->flags),
1787 WMI_TIMEOUT);
1788
1789 up(&ar->sem);
1790
1791 if (left == 0)
1792 return -ETIMEDOUT;
1793 else if (left < 0)
1794 return left;
1795
1796 if (vif->target_stats.rx_byte) {
1797 sinfo->rx_bytes = vif->target_stats.rx_byte;
1798 sinfo->filled |= STATION_INFO_RX_BYTES;
1799 sinfo->rx_packets = vif->target_stats.rx_pkt;
1800 sinfo->filled |= STATION_INFO_RX_PACKETS;
1801 }
1802
1803 if (vif->target_stats.tx_byte) {
1804 sinfo->tx_bytes = vif->target_stats.tx_byte;
1805 sinfo->filled |= STATION_INFO_TX_BYTES;
1806 sinfo->tx_packets = vif->target_stats.tx_pkt;
1807 sinfo->filled |= STATION_INFO_TX_PACKETS;
1808 }
1809
1810 sinfo->signal = vif->target_stats.cs_rssi;
1811 sinfo->filled |= STATION_INFO_SIGNAL;
1812
1813 rate = vif->target_stats.tx_ucast_rate;
1814
1815 if (is_rate_legacy(rate)) {
1816 sinfo->txrate.legacy = rate / 100;
1817 } else if (is_rate_ht20(rate, &mcs, &sgi)) {
1818 if (sgi) {
1819 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1820 sinfo->txrate.mcs = mcs - 1;
1821 } else {
1822 sinfo->txrate.mcs = mcs;
1823 }
1824
1825 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1826 } else if (is_rate_ht40(rate, &mcs, &sgi)) {
1827 if (sgi) {
1828 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1829 sinfo->txrate.mcs = mcs - 1;
1830 } else {
1831 sinfo->txrate.mcs = mcs;
1832 }
1833
1834 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
1835 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1836 } else {
1837 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1838 "invalid rate from stats: %d\n", rate);
1839 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE);
1840 return 0;
1841 }
1842
1843 sinfo->filled |= STATION_INFO_TX_BITRATE;
1844
1845 if (test_bit(CONNECTED, &vif->flags) &&
1846 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) &&
1847 vif->nw_type == INFRA_NETWORK) {
1848 sinfo->filled |= STATION_INFO_BSS_PARAM;
1849 sinfo->bss_param.flags = 0;
1850 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period;
1851 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int;
1852 }
1853
1854 return 0;
1855 }
1856
1857 static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1858 struct cfg80211_pmksa *pmksa)
1859 {
1860 struct ath6kl *ar = ath6kl_priv(netdev);
1861 struct ath6kl_vif *vif = netdev_priv(netdev);
1862
1863 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1864 pmksa->pmkid, true);
1865 }
1866
1867 static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1868 struct cfg80211_pmksa *pmksa)
1869 {
1870 struct ath6kl *ar = ath6kl_priv(netdev);
1871 struct ath6kl_vif *vif = netdev_priv(netdev);
1872
1873 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1874 pmksa->pmkid, false);
1875 }
1876
1877 static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
1878 {
1879 struct ath6kl *ar = ath6kl_priv(netdev);
1880 struct ath6kl_vif *vif = netdev_priv(netdev);
1881
1882 if (test_bit(CONNECTED, &vif->flags))
1883 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx,
1884 vif->bssid, NULL, false);
1885 return 0;
1886 }
1887
1888 static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif,
1889 struct cfg80211_wowlan *wow, u32 *filter)
1890 {
1891 int ret, pos;
1892 u8 mask[WOW_MASK_SIZE];
1893 u16 i;
1894
1895 /* Configure the patterns that we received from the user. */
1896 for (i = 0; i < wow->n_patterns; i++) {
1897
1898 /*
1899 * Convert given nl80211 specific mask value to equivalent
1900 * driver specific mask value and send it to the chip along
1901 * with patterns. For example, If the mask value defined in
1902 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010),
1903 * then equivalent driver specific mask value is
1904 * "0xFF 0x00 0xFF 0x00".
1905 */
1906 memset(&mask, 0, sizeof(mask));
1907 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) {
1908 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8)))
1909 mask[pos] = 0xFF;
1910 }
1911 /*
1912 * Note: Pattern's offset is not passed as part of wowlan
1913 * parameter from CFG layer. So it's always passed as ZERO
1914 * to the firmware. It means, given WOW patterns are always
1915 * matched from the first byte of received pkt in the firmware.
1916 */
1917 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1918 vif->fw_vif_idx, WOW_LIST_ID,
1919 wow->patterns[i].pattern_len,
1920 0 /* pattern offset */,
1921 wow->patterns[i].pattern, mask);
1922 if (ret)
1923 return ret;
1924 }
1925
1926 if (wow->disconnect)
1927 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC;
1928
1929 if (wow->magic_pkt)
1930 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET;
1931
1932 if (wow->gtk_rekey_failure)
1933 *filter |= WOW_FILTER_OPTION_GTK_ERROR;
1934
1935 if (wow->eap_identity_req)
1936 *filter |= WOW_FILTER_OPTION_EAP_REQ;
1937
1938 if (wow->four_way_handshake)
1939 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS;
1940
1941 return 0;
1942 }
1943
1944 static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif)
1945 {
1946 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00,
1947 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1948 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1949 0x00, 0x08 };
1950 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00,
1951 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1952 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1953 0x00, 0x7f };
1954 u8 unicst_offset = 0;
1955 static const u8 arp_pattern[] = { 0x08, 0x06 };
1956 static const u8 arp_mask[] = { 0xff, 0xff };
1957 u8 arp_offset = 20;
1958 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
1959 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
1960 u8 discvr_offset = 38;
1961 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff,
1962 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1963 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00,
1964 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1965 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1966 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ };
1967 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff,
1968 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1969 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
1970 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1971 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1972 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ };
1973 u8 dhcp_offset = 0;
1974 int ret;
1975
1976 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */
1977 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1978 vif->fw_vif_idx, WOW_LIST_ID,
1979 sizeof(unicst_pattern), unicst_offset,
1980 unicst_pattern, unicst_mask);
1981 if (ret) {
1982 ath6kl_err("failed to add WOW unicast IP pattern\n");
1983 return ret;
1984 }
1985
1986 /* Setup all ARP pkt pattern */
1987 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1988 vif->fw_vif_idx, WOW_LIST_ID,
1989 sizeof(arp_pattern), arp_offset,
1990 arp_pattern, arp_mask);
1991 if (ret) {
1992 ath6kl_err("failed to add WOW ARP pattern\n");
1993 return ret;
1994 }
1995
1996 /*
1997 * Setup multicast pattern for mDNS 224.0.0.251,
1998 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
1999 */
2000 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2001 vif->fw_vif_idx, WOW_LIST_ID,
2002 sizeof(discvr_pattern), discvr_offset,
2003 discvr_pattern, discvr_mask);
2004 if (ret) {
2005 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
2006 return ret;
2007 }
2008
2009 /* Setup all DHCP broadcast pkt pattern */
2010 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2011 vif->fw_vif_idx, WOW_LIST_ID,
2012 sizeof(dhcp_pattern), dhcp_offset,
2013 dhcp_pattern, dhcp_mask);
2014 if (ret) {
2015 ath6kl_err("failed to add WOW DHCP broadcast pattern\n");
2016 return ret;
2017 }
2018
2019 return 0;
2020 }
2021
2022 static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif)
2023 {
2024 struct net_device *ndev = vif->ndev;
2025 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
2026 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
2027 u8 discvr_offset = 38;
2028 u8 mac_mask[ETH_ALEN];
2029 int ret;
2030
2031 /* Setup unicast pkt pattern */
2032 memset(mac_mask, 0xff, ETH_ALEN);
2033 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2034 vif->fw_vif_idx, WOW_LIST_ID,
2035 ETH_ALEN, 0, ndev->dev_addr,
2036 mac_mask);
2037 if (ret) {
2038 ath6kl_err("failed to add WOW unicast pattern\n");
2039 return ret;
2040 }
2041
2042 /*
2043 * Setup multicast pattern for mDNS 224.0.0.251,
2044 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
2045 */
2046 if ((ndev->flags & IFF_ALLMULTI) ||
2047 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) {
2048 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2049 vif->fw_vif_idx, WOW_LIST_ID,
2050 sizeof(discvr_pattern), discvr_offset,
2051 discvr_pattern, discvr_mask);
2052 if (ret) {
2053 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
2054 return ret;
2055 }
2056 }
2057
2058 return 0;
2059 }
2060
2061 static int is_hsleep_mode_procsed(struct ath6kl_vif *vif)
2062 {
2063 return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2064 }
2065
2066 static bool is_ctrl_ep_empty(struct ath6kl *ar)
2067 {
2068 return !ar->tx_pending[ar->ctrl_ep];
2069 }
2070
2071 static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif)
2072 {
2073 int ret, left;
2074
2075 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2076
2077 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2078 ATH6KL_HOST_MODE_ASLEEP);
2079 if (ret)
2080 return ret;
2081
2082 left = wait_event_interruptible_timeout(ar->event_wq,
2083 is_hsleep_mode_procsed(vif),
2084 WMI_TIMEOUT);
2085 if (left == 0) {
2086 ath6kl_warn("timeout, didn't get host sleep cmd processed event\n");
2087 ret = -ETIMEDOUT;
2088 } else if (left < 0) {
2089 ath6kl_warn("error while waiting for host sleep cmd processed event %d\n",
2090 left);
2091 ret = left;
2092 }
2093
2094 if (ar->tx_pending[ar->ctrl_ep]) {
2095 left = wait_event_interruptible_timeout(ar->event_wq,
2096 is_ctrl_ep_empty(ar),
2097 WMI_TIMEOUT);
2098 if (left == 0) {
2099 ath6kl_warn("clear wmi ctrl data timeout\n");
2100 ret = -ETIMEDOUT;
2101 } else if (left < 0) {
2102 ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
2103 ret = left;
2104 }
2105 }
2106
2107 return ret;
2108 }
2109
2110 static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
2111 {
2112 struct in_device *in_dev;
2113 struct in_ifaddr *ifa;
2114 struct ath6kl_vif *vif;
2115 int ret;
2116 u32 filter = 0;
2117 u16 i, bmiss_time;
2118 u8 index = 0;
2119 __be32 ips[MAX_IP_ADDRS];
2120
2121 /* The FW currently can't support multi-vif WoW properly. */
2122 if (ar->num_vif > 1)
2123 return -EIO;
2124
2125 vif = ath6kl_vif_first(ar);
2126 if (!vif)
2127 return -EIO;
2128
2129 if (!ath6kl_cfg80211_ready(vif))
2130 return -EIO;
2131
2132 if (!test_bit(CONNECTED, &vif->flags))
2133 return -ENOTCONN;
2134
2135 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST))
2136 return -EINVAL;
2137
2138 if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) &&
2139 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
2140 ar->fw_capabilities)) {
2141 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
2142 vif->fw_vif_idx, false);
2143 if (ret)
2144 return ret;
2145 }
2146
2147 /* Clear existing WOW patterns */
2148 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++)
2149 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx,
2150 WOW_LIST_ID, i);
2151
2152 /*
2153 * Skip the default WOW pattern configuration
2154 * if the driver receives any WOW patterns from
2155 * the user.
2156 */
2157 if (wow)
2158 ret = ath6kl_wow_usr(ar, vif, wow, &filter);
2159 else if (vif->nw_type == AP_NETWORK)
2160 ret = ath6kl_wow_ap(ar, vif);
2161 else
2162 ret = ath6kl_wow_sta(ar, vif);
2163
2164 if (ret)
2165 return ret;
2166
2167 netif_stop_queue(vif->ndev);
2168
2169 if (vif->nw_type != AP_NETWORK) {
2170 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
2171 ATH6KL_MAX_WOW_LISTEN_INTL,
2172 0);
2173 if (ret)
2174 return ret;
2175
2176 /* Set listen interval x 15 times as bmiss time */
2177 bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15;
2178 if (bmiss_time > ATH6KL_MAX_BMISS_TIME)
2179 bmiss_time = ATH6KL_MAX_BMISS_TIME;
2180
2181 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
2182 bmiss_time, 0);
2183 if (ret)
2184 return ret;
2185
2186 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2187 0xFFFF, 0, 0xFFFF, 0, 0, 0,
2188 0, 0, 0, 0);
2189 if (ret)
2190 return ret;
2191 }
2192
2193 ar->state = ATH6KL_STATE_SUSPENDING;
2194
2195 /* Setup own IP addr for ARP agent. */
2196 in_dev = __in_dev_get_rtnl(vif->ndev);
2197 if (!in_dev)
2198 goto skip_arp;
2199
2200 ifa = in_dev->ifa_list;
2201 memset(&ips, 0, sizeof(ips));
2202
2203 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */
2204 while (index < MAX_IP_ADDRS && ifa) {
2205 ips[index] = ifa->ifa_local;
2206 ifa = ifa->ifa_next;
2207 index++;
2208 }
2209
2210 if (ifa) {
2211 ath6kl_err("total IP addr count is exceeding fw limit\n");
2212 return -EINVAL;
2213 }
2214
2215 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]);
2216 if (ret) {
2217 ath6kl_err("fail to setup ip for arp agent\n");
2218 return ret;
2219 }
2220
2221 skip_arp:
2222 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
2223 ATH6KL_WOW_MODE_ENABLE,
2224 filter,
2225 WOW_HOST_REQ_DELAY);
2226 if (ret)
2227 return ret;
2228
2229 ret = ath6kl_cfg80211_host_sleep(ar, vif);
2230 if (ret)
2231 return ret;
2232
2233 return 0;
2234 }
2235
2236 static int ath6kl_wow_resume(struct ath6kl *ar)
2237 {
2238 struct ath6kl_vif *vif;
2239 int ret;
2240
2241 vif = ath6kl_vif_first(ar);
2242 if (!vif)
2243 return -EIO;
2244
2245 ar->state = ATH6KL_STATE_RESUMING;
2246
2247 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2248 ATH6KL_HOST_MODE_AWAKE);
2249 if (ret) {
2250 ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n",
2251 ret);
2252 ar->state = ATH6KL_STATE_WOW;
2253 return ret;
2254 }
2255
2256 if (vif->nw_type != AP_NETWORK) {
2257 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2258 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
2259 if (ret)
2260 return ret;
2261
2262 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
2263 vif->listen_intvl_t, 0);
2264 if (ret)
2265 return ret;
2266
2267 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
2268 vif->bmiss_time_t, 0);
2269 if (ret)
2270 return ret;
2271 }
2272
2273 ar->state = ATH6KL_STATE_ON;
2274
2275 if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) &&
2276 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
2277 ar->fw_capabilities)) {
2278 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
2279 vif->fw_vif_idx, true);
2280 if (ret)
2281 return ret;
2282 }
2283
2284 netif_wake_queue(vif->ndev);
2285
2286 return 0;
2287 }
2288
2289 static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar)
2290 {
2291 struct ath6kl_vif *vif;
2292 int ret;
2293
2294 vif = ath6kl_vif_first(ar);
2295 if (!vif)
2296 return -EIO;
2297
2298 if (!test_bit(WMI_READY, &ar->flag)) {
2299 ath6kl_err("deepsleep failed as wmi is not ready\n");
2300 return -EIO;
2301 }
2302
2303 ath6kl_cfg80211_stop_all(ar);
2304
2305 /* Save the current power mode before enabling power save */
2306 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
2307
2308 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
2309 if (ret)
2310 return ret;
2311
2312 /* Disable WOW mode */
2313 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
2314 ATH6KL_WOW_MODE_DISABLE,
2315 0, 0);
2316 if (ret)
2317 return ret;
2318
2319 /* Flush all non control pkts in TX path */
2320 ath6kl_tx_data_cleanup(ar);
2321
2322 ret = ath6kl_cfg80211_host_sleep(ar, vif);
2323 if (ret)
2324 return ret;
2325
2326 return 0;
2327 }
2328
2329 static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar)
2330 {
2331 struct ath6kl_vif *vif;
2332 int ret;
2333
2334 vif = ath6kl_vif_first(ar);
2335
2336 if (!vif)
2337 return -EIO;
2338
2339 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
2340 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
2341 ar->wmi->saved_pwr_mode);
2342 if (ret)
2343 return ret;
2344 }
2345
2346 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2347 ATH6KL_HOST_MODE_AWAKE);
2348 if (ret)
2349 return ret;
2350
2351 ar->state = ATH6KL_STATE_ON;
2352
2353 /* Reset scan parameter to default values */
2354 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2355 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
2356 if (ret)
2357 return ret;
2358
2359 return 0;
2360 }
2361
2362 int ath6kl_cfg80211_suspend(struct ath6kl *ar,
2363 enum ath6kl_cfg_suspend_mode mode,
2364 struct cfg80211_wowlan *wow)
2365 {
2366 struct ath6kl_vif *vif;
2367 enum ath6kl_state prev_state;
2368 int ret;
2369
2370 switch (mode) {
2371 case ATH6KL_CFG_SUSPEND_WOW:
2372
2373 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n");
2374
2375 /* Flush all non control pkts in TX path */
2376 ath6kl_tx_data_cleanup(ar);
2377
2378 prev_state = ar->state;
2379
2380 ret = ath6kl_wow_suspend(ar, wow);
2381 if (ret) {
2382 ar->state = prev_state;
2383 return ret;
2384 }
2385
2386 ar->state = ATH6KL_STATE_WOW;
2387 break;
2388
2389 case ATH6KL_CFG_SUSPEND_DEEPSLEEP:
2390
2391 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n");
2392
2393 ret = ath6kl_cfg80211_deepsleep_suspend(ar);
2394 if (ret) {
2395 ath6kl_err("deepsleep suspend failed: %d\n", ret);
2396 return ret;
2397 }
2398
2399 ar->state = ATH6KL_STATE_DEEPSLEEP;
2400
2401 break;
2402
2403 case ATH6KL_CFG_SUSPEND_CUTPOWER:
2404
2405 ath6kl_cfg80211_stop_all(ar);
2406
2407 if (ar->state == ATH6KL_STATE_OFF) {
2408 ath6kl_dbg(ATH6KL_DBG_SUSPEND,
2409 "suspend hw off, no action for cutpower\n");
2410 break;
2411 }
2412
2413 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n");
2414
2415 ret = ath6kl_init_hw_stop(ar);
2416 if (ret) {
2417 ath6kl_warn("failed to stop hw during suspend: %d\n",
2418 ret);
2419 }
2420
2421 ar->state = ATH6KL_STATE_CUTPOWER;
2422
2423 break;
2424
2425 case ATH6KL_CFG_SUSPEND_SCHED_SCAN:
2426 /*
2427 * Nothing needed for schedule scan, firmware is already in
2428 * wow mode and sleeping most of the time.
2429 */
2430 break;
2431
2432 default:
2433 break;
2434 }
2435
2436 list_for_each_entry(vif, &ar->vif_list, list)
2437 ath6kl_cfg80211_scan_complete_event(vif, true);
2438
2439 return 0;
2440 }
2441 EXPORT_SYMBOL(ath6kl_cfg80211_suspend);
2442
2443 int ath6kl_cfg80211_resume(struct ath6kl *ar)
2444 {
2445 int ret;
2446
2447 switch (ar->state) {
2448 case ATH6KL_STATE_WOW:
2449 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n");
2450
2451 ret = ath6kl_wow_resume(ar);
2452 if (ret) {
2453 ath6kl_warn("wow mode resume failed: %d\n", ret);
2454 return ret;
2455 }
2456
2457 break;
2458
2459 case ATH6KL_STATE_DEEPSLEEP:
2460 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n");
2461
2462 ret = ath6kl_cfg80211_deepsleep_resume(ar);
2463 if (ret) {
2464 ath6kl_warn("deep sleep resume failed: %d\n", ret);
2465 return ret;
2466 }
2467 break;
2468
2469 case ATH6KL_STATE_CUTPOWER:
2470 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n");
2471
2472 ret = ath6kl_init_hw_start(ar);
2473 if (ret) {
2474 ath6kl_warn("Failed to boot hw in resume: %d\n", ret);
2475 return ret;
2476 }
2477 break;
2478
2479 case ATH6KL_STATE_SCHED_SCAN:
2480 break;
2481
2482 default:
2483 break;
2484 }
2485
2486 return 0;
2487 }
2488 EXPORT_SYMBOL(ath6kl_cfg80211_resume);
2489
2490 #ifdef CONFIG_PM
2491
2492 /* hif layer decides what suspend mode to use */
2493 static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy,
2494 struct cfg80211_wowlan *wow)
2495 {
2496 struct ath6kl *ar = wiphy_priv(wiphy);
2497
2498 return ath6kl_hif_suspend(ar, wow);
2499 }
2500
2501 static int __ath6kl_cfg80211_resume(struct wiphy *wiphy)
2502 {
2503 struct ath6kl *ar = wiphy_priv(wiphy);
2504
2505 return ath6kl_hif_resume(ar);
2506 }
2507
2508 /*
2509 * FIXME: WOW suspend mode is selected if the host sdio controller supports
2510 * both sdio irq wake up and keep power. The target pulls sdio data line to
2511 * wake up the host when WOW pattern matches. This causes sdio irq handler
2512 * is being called in the host side which internally hits ath6kl's RX path.
2513 *
2514 * Since sdio interrupt is not disabled, RX path executes even before
2515 * the host executes the actual resume operation from PM module.
2516 *
2517 * In the current scenario, WOW resume should happen before start processing
2518 * any data from the target. So It's required to perform WOW resume in RX path.
2519 * Ideally we should perform WOW resume only in the actual platform
2520 * resume path. This area needs bit rework to avoid WOW resume in RX path.
2521 *
2522 * ath6kl_check_wow_status() is called from ath6kl_rx().
2523 */
2524 void ath6kl_check_wow_status(struct ath6kl *ar)
2525 {
2526 if (ar->state == ATH6KL_STATE_SUSPENDING)
2527 return;
2528
2529 if (ar->state == ATH6KL_STATE_WOW)
2530 ath6kl_cfg80211_resume(ar);
2531 }
2532
2533 #else
2534
2535 void ath6kl_check_wow_status(struct ath6kl *ar)
2536 {
2537 }
2538 #endif
2539
2540 static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum ieee80211_band band,
2541 bool ht_enable)
2542 {
2543 struct ath6kl_htcap *htcap = &vif->htcap[band];
2544
2545 if (htcap->ht_enable == ht_enable)
2546 return 0;
2547
2548 if (ht_enable) {
2549 /* Set default ht capabilities */
2550 htcap->ht_enable = true;
2551 htcap->cap_info = (band == IEEE80211_BAND_2GHZ) ?
2552 ath6kl_g_htcap : ath6kl_a_htcap;
2553 htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K;
2554 } else /* Disable ht */
2555 memset(htcap, 0, sizeof(*htcap));
2556
2557 return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx,
2558 band, htcap);
2559 }
2560
2561 static int ath6kl_restore_htcap(struct ath6kl_vif *vif)
2562 {
2563 struct wiphy *wiphy = vif->ar->wiphy;
2564 int band, ret = 0;
2565
2566 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2567 if (!wiphy->bands[band])
2568 continue;
2569
2570 ret = ath6kl_set_htcap(vif, band,
2571 wiphy->bands[band]->ht_cap.ht_supported);
2572 if (ret)
2573 return ret;
2574 }
2575
2576 return ret;
2577 }
2578
2579 static bool ath6kl_is_p2p_ie(const u8 *pos)
2580 {
2581 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
2582 pos[2] == 0x50 && pos[3] == 0x6f &&
2583 pos[4] == 0x9a && pos[5] == 0x09;
2584 }
2585
2586 static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif,
2587 const u8 *ies, size_t ies_len)
2588 {
2589 struct ath6kl *ar = vif->ar;
2590 const u8 *pos;
2591 u8 *buf = NULL;
2592 size_t len = 0;
2593 int ret;
2594
2595 /*
2596 * Filter out P2P IE(s) since they will be included depending on
2597 * the Probe Request frame in ath6kl_send_go_probe_resp().
2598 */
2599
2600 if (ies && ies_len) {
2601 buf = kmalloc(ies_len, GFP_KERNEL);
2602 if (buf == NULL)
2603 return -ENOMEM;
2604 pos = ies;
2605 while (pos + 1 < ies + ies_len) {
2606 if (pos + 2 + pos[1] > ies + ies_len)
2607 break;
2608 if (!ath6kl_is_p2p_ie(pos)) {
2609 memcpy(buf + len, pos, 2 + pos[1]);
2610 len += 2 + pos[1];
2611 }
2612 pos += 2 + pos[1];
2613 }
2614 }
2615
2616 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2617 WMI_FRAME_PROBE_RESP, buf, len);
2618 kfree(buf);
2619 return ret;
2620 }
2621
2622 static int ath6kl_set_ies(struct ath6kl_vif *vif,
2623 struct cfg80211_beacon_data *info)
2624 {
2625 struct ath6kl *ar = vif->ar;
2626 int res;
2627
2628 /* this also clears IE in fw if it's not set */
2629 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2630 WMI_FRAME_BEACON,
2631 info->beacon_ies,
2632 info->beacon_ies_len);
2633 if (res)
2634 return res;
2635
2636 /* this also clears IE in fw if it's not set */
2637 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies,
2638 info->proberesp_ies_len);
2639 if (res)
2640 return res;
2641
2642 /* this also clears IE in fw if it's not set */
2643 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2644 WMI_FRAME_ASSOC_RESP,
2645 info->assocresp_ies,
2646 info->assocresp_ies_len);
2647 if (res)
2648 return res;
2649
2650 return 0;
2651 }
2652
2653 static int ath6kl_set_channel(struct wiphy *wiphy, struct net_device *dev,
2654 struct ieee80211_channel *chan,
2655 enum nl80211_channel_type channel_type)
2656 {
2657 struct ath6kl_vif *vif;
2658
2659 /*
2660 * 'dev' could be NULL if a channel change is required for the hardware
2661 * device itself, instead of a particular VIF.
2662 *
2663 * FIXME: To be handled properly when monitor mode is supported.
2664 */
2665 if (!dev)
2666 return -EBUSY;
2667
2668 vif = netdev_priv(dev);
2669
2670 if (!ath6kl_cfg80211_ready(vif))
2671 return -EIO;
2672
2673 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: center_freq=%u hw_value=%u\n",
2674 __func__, chan->center_freq, chan->hw_value);
2675 vif->next_chan = chan->center_freq;
2676 vif->next_ch_type = channel_type;
2677 vif->next_ch_band = chan->band;
2678
2679 return 0;
2680 }
2681
2682 void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif, bool enable)
2683 {
2684 int err;
2685
2686 if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag)))
2687 return;
2688
2689 if (vif->nw_type != INFRA_NETWORK)
2690 return;
2691
2692 if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE,
2693 vif->ar->fw_capabilities))
2694 return;
2695
2696 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n",
2697 enable ? "enable" : "disable");
2698
2699 err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi,
2700 vif->fw_vif_idx, enable);
2701 if (err)
2702 ath6kl_err("failed to %s enhanced bmiss detection: %d\n",
2703 enable ? "enable" : "disable", err);
2704 }
2705
2706 static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon,
2707 u8 *rsn_capab)
2708 {
2709 const u8 *rsn_ie;
2710 size_t rsn_ie_len;
2711 u16 cnt;
2712
2713 if (!beacon->tail)
2714 return -EINVAL;
2715
2716 rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len);
2717 if (!rsn_ie)
2718 return -EINVAL;
2719
2720 rsn_ie_len = *(rsn_ie + 1);
2721 /* skip element id and length */
2722 rsn_ie += 2;
2723
2724 /* skip version */
2725 if (rsn_ie_len < 2)
2726 return -EINVAL;
2727 rsn_ie += 2;
2728 rsn_ie_len -= 2;
2729
2730 /* skip group cipher suite */
2731 if (rsn_ie_len < 4)
2732 return 0;
2733 rsn_ie += 4;
2734 rsn_ie_len -= 4;
2735
2736 /* skip pairwise cipher suite */
2737 if (rsn_ie_len < 2)
2738 return 0;
2739 cnt = get_unaligned_le16(rsn_ie);
2740 rsn_ie += (2 + cnt * 4);
2741 rsn_ie_len -= (2 + cnt * 4);
2742
2743 /* skip akm suite */
2744 if (rsn_ie_len < 2)
2745 return 0;
2746 cnt = get_unaligned_le16(rsn_ie);
2747 rsn_ie += (2 + cnt * 4);
2748 rsn_ie_len -= (2 + cnt * 4);
2749
2750 if (rsn_ie_len < 2)
2751 return 0;
2752
2753 memcpy(rsn_capab, rsn_ie, 2);
2754
2755 return 0;
2756 }
2757
2758 static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
2759 struct cfg80211_ap_settings *info)
2760 {
2761 struct ath6kl *ar = ath6kl_priv(dev);
2762 struct ath6kl_vif *vif = netdev_priv(dev);
2763 struct ieee80211_mgmt *mgmt;
2764 bool hidden = false;
2765 u8 *ies;
2766 int ies_len;
2767 struct wmi_connect_cmd p;
2768 int res;
2769 int i, ret;
2770 u16 rsn_capab = 0;
2771
2772 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__);
2773
2774 if (!ath6kl_cfg80211_ready(vif))
2775 return -EIO;
2776
2777 if (vif->next_mode != AP_NETWORK)
2778 return -EOPNOTSUPP;
2779
2780 res = ath6kl_set_ies(vif, &info->beacon);
2781
2782 ar->ap_mode_bkey.valid = false;
2783
2784 /* TODO:
2785 * info->interval
2786 * info->dtim_period
2787 */
2788
2789 if (info->beacon.head == NULL)
2790 return -EINVAL;
2791 mgmt = (struct ieee80211_mgmt *) info->beacon.head;
2792 ies = mgmt->u.beacon.variable;
2793 if (ies > info->beacon.head + info->beacon.head_len)
2794 return -EINVAL;
2795 ies_len = info->beacon.head + info->beacon.head_len - ies;
2796
2797 if (info->ssid == NULL)
2798 return -EINVAL;
2799 memcpy(vif->ssid, info->ssid, info->ssid_len);
2800 vif->ssid_len = info->ssid_len;
2801 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE)
2802 hidden = true;
2803
2804 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden);
2805 if (res)
2806 return res;
2807
2808 ret = ath6kl_set_auth_type(vif, info->auth_type);
2809 if (ret)
2810 return ret;
2811
2812 memset(&p, 0, sizeof(p));
2813
2814 for (i = 0; i < info->crypto.n_akm_suites; i++) {
2815 switch (info->crypto.akm_suites[i]) {
2816 case WLAN_AKM_SUITE_8021X:
2817 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2818 p.auth_mode |= WPA_AUTH;
2819 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2820 p.auth_mode |= WPA2_AUTH;
2821 break;
2822 case WLAN_AKM_SUITE_PSK:
2823 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2824 p.auth_mode |= WPA_PSK_AUTH;
2825 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2826 p.auth_mode |= WPA2_PSK_AUTH;
2827 break;
2828 }
2829 }
2830 if (p.auth_mode == 0)
2831 p.auth_mode = NONE_AUTH;
2832 vif->auth_mode = p.auth_mode;
2833
2834 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) {
2835 switch (info->crypto.ciphers_pairwise[i]) {
2836 case WLAN_CIPHER_SUITE_WEP40:
2837 case WLAN_CIPHER_SUITE_WEP104:
2838 p.prwise_crypto_type |= WEP_CRYPT;
2839 break;
2840 case WLAN_CIPHER_SUITE_TKIP:
2841 p.prwise_crypto_type |= TKIP_CRYPT;
2842 break;
2843 case WLAN_CIPHER_SUITE_CCMP:
2844 p.prwise_crypto_type |= AES_CRYPT;
2845 break;
2846 case WLAN_CIPHER_SUITE_SMS4:
2847 p.prwise_crypto_type |= WAPI_CRYPT;
2848 break;
2849 }
2850 }
2851 if (p.prwise_crypto_type == 0) {
2852 p.prwise_crypto_type = NONE_CRYPT;
2853 ath6kl_set_cipher(vif, 0, true);
2854 } else if (info->crypto.n_ciphers_pairwise == 1)
2855 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true);
2856
2857 switch (info->crypto.cipher_group) {
2858 case WLAN_CIPHER_SUITE_WEP40:
2859 case WLAN_CIPHER_SUITE_WEP104:
2860 p.grp_crypto_type = WEP_CRYPT;
2861 break;
2862 case WLAN_CIPHER_SUITE_TKIP:
2863 p.grp_crypto_type = TKIP_CRYPT;
2864 break;
2865 case WLAN_CIPHER_SUITE_CCMP:
2866 p.grp_crypto_type = AES_CRYPT;
2867 break;
2868 case WLAN_CIPHER_SUITE_SMS4:
2869 p.grp_crypto_type = WAPI_CRYPT;
2870 break;
2871 default:
2872 p.grp_crypto_type = NONE_CRYPT;
2873 break;
2874 }
2875 ath6kl_set_cipher(vif, info->crypto.cipher_group, false);
2876
2877 p.nw_type = AP_NETWORK;
2878 vif->nw_type = vif->next_mode;
2879
2880 p.ssid_len = vif->ssid_len;
2881 memcpy(p.ssid, vif->ssid, vif->ssid_len);
2882 p.dot11_auth_mode = vif->dot11_auth_mode;
2883 p.ch = cpu_to_le16(vif->next_chan);
2884
2885 /* Enable uAPSD support by default */
2886 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true);
2887 if (res < 0)
2888 return res;
2889
2890 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) {
2891 p.nw_subtype = SUBTYPE_P2PGO;
2892 } else {
2893 /*
2894 * Due to firmware limitation, it is not possible to
2895 * do P2P mgmt operations in AP mode
2896 */
2897 p.nw_subtype = SUBTYPE_NONE;
2898 }
2899
2900 if (info->inactivity_timeout) {
2901 res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx,
2902 info->inactivity_timeout);
2903 if (res < 0)
2904 return res;
2905 }
2906
2907 if (ath6kl_set_htcap(vif, vif->next_ch_band,
2908 vif->next_ch_type != NL80211_CHAN_NO_HT))
2909 return -EIO;
2910
2911 /*
2912 * Get the PTKSA replay counter in the RSN IE. Supplicant
2913 * will use the RSN IE in M3 message and firmware has to
2914 * advertise the same in beacon/probe response. Send
2915 * the complete RSN IE capability field to firmware
2916 */
2917 if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) &&
2918 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
2919 ar->fw_capabilities)) {
2920 res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx,
2921 WLAN_EID_RSN, WMI_RSN_IE_CAPB,
2922 (const u8 *) &rsn_capab,
2923 sizeof(rsn_capab));
2924 if (res < 0)
2925 return res;
2926 }
2927
2928 memcpy(&vif->profile, &p, sizeof(p));
2929 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p);
2930 if (res < 0)
2931 return res;
2932
2933 return 0;
2934 }
2935
2936 static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev,
2937 struct cfg80211_beacon_data *beacon)
2938 {
2939 struct ath6kl_vif *vif = netdev_priv(dev);
2940
2941 if (!ath6kl_cfg80211_ready(vif))
2942 return -EIO;
2943
2944 if (vif->next_mode != AP_NETWORK)
2945 return -EOPNOTSUPP;
2946
2947 return ath6kl_set_ies(vif, beacon);
2948 }
2949
2950 static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev)
2951 {
2952 struct ath6kl *ar = ath6kl_priv(dev);
2953 struct ath6kl_vif *vif = netdev_priv(dev);
2954
2955 if (vif->nw_type != AP_NETWORK)
2956 return -EOPNOTSUPP;
2957 if (!test_bit(CONNECTED, &vif->flags))
2958 return -ENOTCONN;
2959
2960 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
2961 clear_bit(CONNECTED, &vif->flags);
2962
2963 /* Restore ht setting in firmware */
2964 return ath6kl_restore_htcap(vif);
2965 }
2966
2967 static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2968
2969 static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev,
2970 u8 *mac)
2971 {
2972 struct ath6kl *ar = ath6kl_priv(dev);
2973 struct ath6kl_vif *vif = netdev_priv(dev);
2974 const u8 *addr = mac ? mac : bcast_addr;
2975
2976 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH,
2977 addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
2978 }
2979
2980 static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev,
2981 u8 *mac, struct station_parameters *params)
2982 {
2983 struct ath6kl *ar = ath6kl_priv(dev);
2984 struct ath6kl_vif *vif = netdev_priv(dev);
2985
2986 if (vif->nw_type != AP_NETWORK)
2987 return -EOPNOTSUPP;
2988
2989 /* Use this only for authorizing/unauthorizing a station */
2990 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
2991 return -EOPNOTSUPP;
2992
2993 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
2994 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
2995 WMI_AP_MLME_AUTHORIZE, mac, 0);
2996 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
2997 WMI_AP_MLME_UNAUTHORIZE, mac, 0);
2998 }
2999
3000 static int ath6kl_remain_on_channel(struct wiphy *wiphy,
3001 struct net_device *dev,
3002 struct ieee80211_channel *chan,
3003 enum nl80211_channel_type channel_type,
3004 unsigned int duration,
3005 u64 *cookie)
3006 {
3007 struct ath6kl *ar = ath6kl_priv(dev);
3008 struct ath6kl_vif *vif = netdev_priv(dev);
3009 u32 id;
3010
3011 /* TODO: if already pending or ongoing remain-on-channel,
3012 * return -EBUSY */
3013 id = ++vif->last_roc_id;
3014 if (id == 0) {
3015 /* Do not use 0 as the cookie value */
3016 id = ++vif->last_roc_id;
3017 }
3018 *cookie = id;
3019
3020 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx,
3021 chan->center_freq, duration);
3022 }
3023
3024 static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy,
3025 struct net_device *dev,
3026 u64 cookie)
3027 {
3028 struct ath6kl *ar = ath6kl_priv(dev);
3029 struct ath6kl_vif *vif = netdev_priv(dev);
3030
3031 if (cookie != vif->last_roc_id)
3032 return -ENOENT;
3033 vif->last_cancel_roc_id = cookie;
3034
3035 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx);
3036 }
3037
3038 static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif,
3039 const u8 *buf, size_t len,
3040 unsigned int freq)
3041 {
3042 struct ath6kl *ar = vif->ar;
3043 const u8 *pos;
3044 u8 *p2p;
3045 int p2p_len;
3046 int ret;
3047 const struct ieee80211_mgmt *mgmt;
3048
3049 mgmt = (const struct ieee80211_mgmt *) buf;
3050
3051 /* Include P2P IE(s) from the frame generated in user space. */
3052
3053 p2p = kmalloc(len, GFP_KERNEL);
3054 if (p2p == NULL)
3055 return -ENOMEM;
3056 p2p_len = 0;
3057
3058 pos = mgmt->u.probe_resp.variable;
3059 while (pos + 1 < buf + len) {
3060 if (pos + 2 + pos[1] > buf + len)
3061 break;
3062 if (ath6kl_is_p2p_ie(pos)) {
3063 memcpy(p2p + p2p_len, pos, 2 + pos[1]);
3064 p2p_len += 2 + pos[1];
3065 }
3066 pos += 2 + pos[1];
3067 }
3068
3069 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq,
3070 mgmt->da, p2p, p2p_len);
3071 kfree(p2p);
3072 return ret;
3073 }
3074
3075 static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif,
3076 u32 id,
3077 u32 freq,
3078 u32 wait,
3079 const u8 *buf,
3080 size_t len,
3081 bool *more_data,
3082 bool no_cck)
3083 {
3084 struct ieee80211_mgmt *mgmt;
3085 struct ath6kl_sta *conn;
3086 bool is_psq_empty = false;
3087 struct ath6kl_mgmt_buff *mgmt_buf;
3088 size_t mgmt_buf_size;
3089 struct ath6kl *ar = vif->ar;
3090
3091 mgmt = (struct ieee80211_mgmt *) buf;
3092 if (is_multicast_ether_addr(mgmt->da))
3093 return false;
3094
3095 conn = ath6kl_find_sta(vif, mgmt->da);
3096 if (!conn)
3097 return false;
3098
3099 if (conn->sta_flags & STA_PS_SLEEP) {
3100 if (!(conn->sta_flags & STA_PS_POLLED)) {
3101 /* Queue the frames if the STA is sleeping */
3102 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff);
3103 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL);
3104 if (!mgmt_buf)
3105 return false;
3106
3107 INIT_LIST_HEAD(&mgmt_buf->list);
3108 mgmt_buf->id = id;
3109 mgmt_buf->freq = freq;
3110 mgmt_buf->wait = wait;
3111 mgmt_buf->len = len;
3112 mgmt_buf->no_cck = no_cck;
3113 memcpy(mgmt_buf->buf, buf, len);
3114 spin_lock_bh(&conn->psq_lock);
3115 is_psq_empty = skb_queue_empty(&conn->psq) &&
3116 (conn->mgmt_psq_len == 0);
3117 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq);
3118 conn->mgmt_psq_len++;
3119 spin_unlock_bh(&conn->psq_lock);
3120
3121 /*
3122 * If this is the first pkt getting queued
3123 * for this STA, update the PVB for this
3124 * STA.
3125 */
3126 if (is_psq_empty)
3127 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
3128 conn->aid, 1);
3129 return true;
3130 }
3131
3132 /*
3133 * This tx is because of a PsPoll.
3134 * Determine if MoreData bit has to be set.
3135 */
3136 spin_lock_bh(&conn->psq_lock);
3137 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0))
3138 *more_data = true;
3139 spin_unlock_bh(&conn->psq_lock);
3140 }
3141
3142 return false;
3143 }
3144
3145 /* Check if SSID length is greater than DIRECT- */
3146 static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len)
3147 {
3148 const struct ieee80211_mgmt *mgmt;
3149 mgmt = (const struct ieee80211_mgmt *) buf;
3150
3151 /* variable[1] contains the SSID tag length */
3152 if (buf + len >= &mgmt->u.probe_resp.variable[1] &&
3153 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) {
3154 return true;
3155 }
3156
3157 return false;
3158 }
3159
3160 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
3161 struct ieee80211_channel *chan, bool offchan,
3162 enum nl80211_channel_type channel_type,
3163 bool channel_type_valid, unsigned int wait,
3164 const u8 *buf, size_t len, bool no_cck,
3165 bool dont_wait_for_ack, u64 *cookie)
3166 {
3167 struct ath6kl *ar = ath6kl_priv(dev);
3168 struct ath6kl_vif *vif = netdev_priv(dev);
3169 u32 id;
3170 const struct ieee80211_mgmt *mgmt;
3171 bool more_data, queued;
3172
3173 mgmt = (const struct ieee80211_mgmt *) buf;
3174 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) &&
3175 ieee80211_is_probe_resp(mgmt->frame_control) &&
3176 ath6kl_is_p2p_go_ssid(buf, len)) {
3177 /*
3178 * Send Probe Response frame in GO mode using a separate WMI
3179 * command to allow the target to fill in the generic IEs.
3180 */
3181 *cookie = 0; /* TX status not supported */
3182 return ath6kl_send_go_probe_resp(vif, buf, len,
3183 chan->center_freq);
3184 }
3185
3186 id = vif->send_action_id++;
3187 if (id == 0) {
3188 /*
3189 * 0 is a reserved value in the WMI command and shall not be
3190 * used for the command.
3191 */
3192 id = vif->send_action_id++;
3193 }
3194
3195 *cookie = id;
3196
3197 /* AP mode Power saving processing */
3198 if (vif->nw_type == AP_NETWORK) {
3199 queued = ath6kl_mgmt_powersave_ap(vif,
3200 id, chan->center_freq,
3201 wait, buf,
3202 len, &more_data, no_cck);
3203 if (queued)
3204 return 0;
3205 }
3206
3207 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id,
3208 chan->center_freq, wait,
3209 buf, len, no_cck);
3210 }
3211
3212 static void ath6kl_mgmt_frame_register(struct wiphy *wiphy,
3213 struct net_device *dev,
3214 u16 frame_type, bool reg)
3215 {
3216 struct ath6kl_vif *vif = netdev_priv(dev);
3217
3218 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n",
3219 __func__, frame_type, reg);
3220 if (frame_type == IEEE80211_STYPE_PROBE_REQ) {
3221 /*
3222 * Note: This notification callback is not allowed to sleep, so
3223 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we
3224 * hardcode target to report Probe Request frames all the time.
3225 */
3226 vif->probe_req_report = reg;
3227 }
3228 }
3229
3230 static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy,
3231 struct net_device *dev,
3232 struct cfg80211_sched_scan_request *request)
3233 {
3234 struct ath6kl *ar = ath6kl_priv(dev);
3235 struct ath6kl_vif *vif = netdev_priv(dev);
3236 u16 interval;
3237 int ret;
3238
3239 if (ar->state != ATH6KL_STATE_ON)
3240 return -EIO;
3241
3242 if (vif->sme_state != SME_DISCONNECTED)
3243 return -EBUSY;
3244
3245 /* The FW currently can't support multi-vif WoW properly. */
3246 if (ar->num_vif > 1)
3247 return -EIO;
3248
3249 ath6kl_cfg80211_scan_complete_event(vif, true);
3250
3251 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
3252 request->n_ssids,
3253 request->match_sets,
3254 request->n_match_sets);
3255 if (ret < 0)
3256 return ret;
3257
3258 if (!request->n_match_sets) {
3259 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
3260 ALL_BSS_FILTER, 0);
3261 if (ret < 0)
3262 return ret;
3263 } else {
3264 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
3265 MATCHED_SSID_FILTER, 0);
3266 if (ret < 0)
3267 return ret;
3268 }
3269
3270 /* fw uses seconds, also make sure that it's >0 */
3271 interval = max_t(u16, 1, request->interval / 1000);
3272
3273 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
3274 interval, interval,
3275 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
3276
3277 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
3278 ATH6KL_WOW_MODE_ENABLE,
3279 WOW_FILTER_SSID,
3280 WOW_HOST_REQ_DELAY);
3281 if (ret) {
3282 ath6kl_warn("Failed to enable wow with ssid filter: %d\n", ret);
3283 return ret;
3284 }
3285
3286 /* this also clears IE in fw if it's not set */
3287 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
3288 WMI_FRAME_PROBE_REQ,
3289 request->ie, request->ie_len);
3290 if (ret) {
3291 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d",
3292 ret);
3293 return ret;
3294 }
3295
3296 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
3297 ATH6KL_HOST_MODE_ASLEEP);
3298 if (ret) {
3299 ath6kl_warn("Failed to enable host sleep mode for sched scan: %d\n",
3300 ret);
3301 return ret;
3302 }
3303
3304 ar->state = ATH6KL_STATE_SCHED_SCAN;
3305
3306 return ret;
3307 }
3308
3309 static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy,
3310 struct net_device *dev)
3311 {
3312 struct ath6kl_vif *vif = netdev_priv(dev);
3313 bool stopped;
3314
3315 stopped = __ath6kl_cfg80211_sscan_stop(vif);
3316
3317 if (!stopped)
3318 return -EIO;
3319
3320 return 0;
3321 }
3322
3323 static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy,
3324 struct net_device *dev,
3325 const u8 *addr,
3326 const struct cfg80211_bitrate_mask *mask)
3327 {
3328 struct ath6kl *ar = ath6kl_priv(dev);
3329 struct ath6kl_vif *vif = netdev_priv(dev);
3330
3331 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx,
3332 mask);
3333 }
3334
3335 static const struct ieee80211_txrx_stypes
3336 ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = {
3337 [NL80211_IFTYPE_STATION] = {
3338 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3339 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3340 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3341 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3342 },
3343 [NL80211_IFTYPE_AP] = {
3344 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3345 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3346 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3347 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3348 },
3349 [NL80211_IFTYPE_P2P_CLIENT] = {
3350 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3351 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3352 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3353 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3354 },
3355 [NL80211_IFTYPE_P2P_GO] = {
3356 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3357 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3358 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3359 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3360 },
3361 };
3362
3363 static struct cfg80211_ops ath6kl_cfg80211_ops = {
3364 .add_virtual_intf = ath6kl_cfg80211_add_iface,
3365 .del_virtual_intf = ath6kl_cfg80211_del_iface,
3366 .change_virtual_intf = ath6kl_cfg80211_change_iface,
3367 .scan = ath6kl_cfg80211_scan,
3368 .connect = ath6kl_cfg80211_connect,
3369 .disconnect = ath6kl_cfg80211_disconnect,
3370 .add_key = ath6kl_cfg80211_add_key,
3371 .get_key = ath6kl_cfg80211_get_key,
3372 .del_key = ath6kl_cfg80211_del_key,
3373 .set_default_key = ath6kl_cfg80211_set_default_key,
3374 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,
3375 .set_tx_power = ath6kl_cfg80211_set_txpower,
3376 .get_tx_power = ath6kl_cfg80211_get_txpower,
3377 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,
3378 .join_ibss = ath6kl_cfg80211_join_ibss,
3379 .leave_ibss = ath6kl_cfg80211_leave_ibss,
3380 .get_station = ath6kl_get_station,
3381 .set_pmksa = ath6kl_set_pmksa,
3382 .del_pmksa = ath6kl_del_pmksa,
3383 .flush_pmksa = ath6kl_flush_pmksa,
3384 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd)
3385 #ifdef CONFIG_PM
3386 .suspend = __ath6kl_cfg80211_suspend,
3387 .resume = __ath6kl_cfg80211_resume,
3388 #endif
3389 .set_channel = ath6kl_set_channel,
3390 .start_ap = ath6kl_start_ap,
3391 .change_beacon = ath6kl_change_beacon,
3392 .stop_ap = ath6kl_stop_ap,
3393 .del_station = ath6kl_del_station,
3394 .change_station = ath6kl_change_station,
3395 .remain_on_channel = ath6kl_remain_on_channel,
3396 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel,
3397 .mgmt_tx = ath6kl_mgmt_tx,
3398 .mgmt_frame_register = ath6kl_mgmt_frame_register,
3399 .sched_scan_start = ath6kl_cfg80211_sscan_start,
3400 .sched_scan_stop = ath6kl_cfg80211_sscan_stop,
3401 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate,
3402 };
3403
3404 void ath6kl_cfg80211_stop(struct ath6kl_vif *vif)
3405 {
3406 ath6kl_cfg80211_sscan_disable(vif);
3407
3408 switch (vif->sme_state) {
3409 case SME_DISCONNECTED:
3410 break;
3411 case SME_CONNECTING:
3412 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0,
3413 NULL, 0,
3414 WLAN_STATUS_UNSPECIFIED_FAILURE,
3415 GFP_KERNEL);
3416 break;
3417 case SME_CONNECTED:
3418 cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL);
3419 break;
3420 }
3421
3422 if (test_bit(CONNECTED, &vif->flags) ||
3423 test_bit(CONNECT_PEND, &vif->flags))
3424 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
3425
3426 vif->sme_state = SME_DISCONNECTED;
3427 clear_bit(CONNECTED, &vif->flags);
3428 clear_bit(CONNECT_PEND, &vif->flags);
3429
3430 /* disable scanning */
3431 if (ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF,
3432 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0)
3433 ath6kl_warn("failed to disable scan during stop\n");
3434
3435 ath6kl_cfg80211_scan_complete_event(vif, true);
3436 }
3437
3438 void ath6kl_cfg80211_stop_all(struct ath6kl *ar)
3439 {
3440 struct ath6kl_vif *vif;
3441
3442 vif = ath6kl_vif_first(ar);
3443 if (!vif) {
3444 /* save the current power mode before enabling power save */
3445 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
3446
3447 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0)
3448 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n");
3449 return;
3450 }
3451
3452 /*
3453 * FIXME: we should take ar->list_lock to protect changes in the
3454 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop()
3455 * sleeps.
3456 */
3457 list_for_each_entry(vif, &ar->vif_list, list)
3458 ath6kl_cfg80211_stop(vif);
3459 }
3460
3461 static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif)
3462 {
3463 vif->aggr_cntxt = aggr_init(vif);
3464 if (!vif->aggr_cntxt) {
3465 ath6kl_err("failed to initialize aggr\n");
3466 return -ENOMEM;
3467 }
3468
3469 setup_timer(&vif->disconnect_timer, disconnect_timer_handler,
3470 (unsigned long) vif->ndev);
3471 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer,
3472 (unsigned long) vif);
3473
3474 set_bit(WMM_ENABLED, &vif->flags);
3475 spin_lock_init(&vif->if_lock);
3476
3477 INIT_LIST_HEAD(&vif->mc_filter);
3478
3479 return 0;
3480 }
3481
3482 void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif)
3483 {
3484 struct ath6kl *ar = vif->ar;
3485 struct ath6kl_mc_filter *mc_filter, *tmp;
3486
3487 aggr_module_destroy(vif->aggr_cntxt);
3488
3489 ar->avail_idx_map |= BIT(vif->fw_vif_idx);
3490
3491 if (vif->nw_type == ADHOC_NETWORK)
3492 ar->ibss_if_active = false;
3493
3494 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
3495 list_del(&mc_filter->list);
3496 kfree(mc_filter);
3497 }
3498
3499 unregister_netdevice(vif->ndev);
3500
3501 ar->num_vif--;
3502 }
3503
3504 struct net_device *ath6kl_interface_add(struct ath6kl *ar, char *name,
3505 enum nl80211_iftype type, u8 fw_vif_idx,
3506 u8 nw_type)
3507 {
3508 struct net_device *ndev;
3509 struct ath6kl_vif *vif;
3510
3511 ndev = alloc_netdev(sizeof(*vif), name, ether_setup);
3512 if (!ndev)
3513 return NULL;
3514
3515 vif = netdev_priv(ndev);
3516 ndev->ieee80211_ptr = &vif->wdev;
3517 vif->wdev.wiphy = ar->wiphy;
3518 vif->ar = ar;
3519 vif->ndev = ndev;
3520 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy));
3521 vif->wdev.netdev = ndev;
3522 vif->wdev.iftype = type;
3523 vif->fw_vif_idx = fw_vif_idx;
3524 vif->nw_type = nw_type;
3525 vif->next_mode = nw_type;
3526 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL;
3527 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME;
3528 vif->bg_scan_period = 0;
3529 vif->htcap[IEEE80211_BAND_2GHZ].ht_enable = true;
3530 vif->htcap[IEEE80211_BAND_5GHZ].ht_enable = true;
3531
3532 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
3533 if (fw_vif_idx != 0)
3534 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) |
3535 0x2;
3536
3537 init_netdev(ndev);
3538
3539 ath6kl_init_control_info(vif);
3540
3541 if (ath6kl_cfg80211_vif_init(vif))
3542 goto err;
3543
3544 if (register_netdevice(ndev))
3545 goto err;
3546
3547 ar->avail_idx_map &= ~BIT(fw_vif_idx);
3548 vif->sme_state = SME_DISCONNECTED;
3549 set_bit(WLAN_ENABLED, &vif->flags);
3550 ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
3551 set_bit(NETDEV_REGISTERED, &vif->flags);
3552
3553 if (type == NL80211_IFTYPE_ADHOC)
3554 ar->ibss_if_active = true;
3555
3556 spin_lock_bh(&ar->list_lock);
3557 list_add_tail(&vif->list, &ar->vif_list);
3558 spin_unlock_bh(&ar->list_lock);
3559
3560 return ndev;
3561
3562 err:
3563 aggr_module_destroy(vif->aggr_cntxt);
3564 free_netdev(ndev);
3565 return NULL;
3566 }
3567
3568 int ath6kl_cfg80211_init(struct ath6kl *ar)
3569 {
3570 struct wiphy *wiphy = ar->wiphy;
3571 bool band_2gig = false, band_5gig = false, ht = false;
3572 int ret;
3573
3574 wiphy->mgmt_stypes = ath6kl_mgmt_stypes;
3575
3576 wiphy->max_remain_on_channel_duration = 5000;
3577
3578 /* set device pointer for wiphy */
3579 set_wiphy_dev(wiphy, ar->dev);
3580
3581 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3582 BIT(NL80211_IFTYPE_ADHOC) |
3583 BIT(NL80211_IFTYPE_AP);
3584 if (ar->p2p) {
3585 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) |
3586 BIT(NL80211_IFTYPE_P2P_CLIENT);
3587 }
3588
3589 /* max num of ssids that can be probed during scanning */
3590 wiphy->max_scan_ssids = MAX_PROBED_SSIDS;
3591
3592 /* max num of ssids that can be matched after scan */
3593 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST,
3594 ar->fw_capabilities))
3595 wiphy->max_match_sets = MAX_PROBED_SSIDS;
3596
3597 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */
3598 switch (ar->hw.cap) {
3599 case WMI_11AN_CAP:
3600 ht = true;
3601 case WMI_11A_CAP:
3602 band_5gig = true;
3603 break;
3604 case WMI_11GN_CAP:
3605 ht = true;
3606 case WMI_11G_CAP:
3607 band_2gig = true;
3608 break;
3609 case WMI_11AGN_CAP:
3610 ht = true;
3611 case WMI_11AG_CAP:
3612 band_2gig = true;
3613 band_5gig = true;
3614 break;
3615 default:
3616 ath6kl_err("invalid phy capability!\n");
3617 return -EINVAL;
3618 }
3619
3620 /*
3621 * Even if the fw has HT support, advertise HT cap only when
3622 * the firmware has support to override RSN capability, otherwise
3623 * 4-way handshake would fail.
3624 */
3625 if (!(ht &&
3626 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
3627 ar->fw_capabilities))) {
3628 ath6kl_band_2ghz.ht_cap.cap = 0;
3629 ath6kl_band_2ghz.ht_cap.ht_supported = false;
3630 ath6kl_band_5ghz.ht_cap.cap = 0;
3631 ath6kl_band_5ghz.ht_cap.ht_supported = false;
3632 }
3633
3634 if (ar->hw.flags & ATH6KL_HW_FLAG_64BIT_RATES) {
3635 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3636 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3637 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff;
3638 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff;
3639 } else {
3640 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3641 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3642 }
3643
3644 if (band_2gig)
3645 wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz;
3646 if (band_5gig)
3647 wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz;
3648
3649 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3650
3651 wiphy->cipher_suites = cipher_suites;
3652 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
3653
3654 wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
3655 WIPHY_WOWLAN_DISCONNECT |
3656 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
3657 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
3658 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
3659 WIPHY_WOWLAN_4WAY_HANDSHAKE;
3660 wiphy->wowlan.n_patterns = WOW_MAX_FILTERS_PER_LIST;
3661 wiphy->wowlan.pattern_min_len = 1;
3662 wiphy->wowlan.pattern_max_len = WOW_PATTERN_SIZE;
3663
3664 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS;
3665
3666 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
3667 WIPHY_FLAG_HAVE_AP_SME |
3668 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3669 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
3670
3671 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN, ar->fw_capabilities))
3672 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
3673
3674 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT,
3675 ar->fw_capabilities))
3676 ar->wiphy->features = NL80211_FEATURE_INACTIVITY_TIMER;
3677
3678 ar->wiphy->probe_resp_offload =
3679 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3680 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3681 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3682
3683 ret = wiphy_register(wiphy);
3684 if (ret < 0) {
3685 ath6kl_err("couldn't register wiphy device\n");
3686 return ret;
3687 }
3688
3689 ar->wiphy_registered = true;
3690
3691 return 0;
3692 }
3693
3694 void ath6kl_cfg80211_cleanup(struct ath6kl *ar)
3695 {
3696 wiphy_unregister(ar->wiphy);
3697
3698 ar->wiphy_registered = false;
3699 }
3700
3701 struct ath6kl *ath6kl_cfg80211_create(void)
3702 {
3703 struct ath6kl *ar;
3704 struct wiphy *wiphy;
3705
3706 /* create a new wiphy for use with cfg80211 */
3707 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));
3708
3709 if (!wiphy) {
3710 ath6kl_err("couldn't allocate wiphy device\n");
3711 return NULL;
3712 }
3713
3714 ar = wiphy_priv(wiphy);
3715 ar->wiphy = wiphy;
3716
3717 return ar;
3718 }
3719
3720 /* Note: ar variable must not be accessed after calling this! */
3721 void ath6kl_cfg80211_destroy(struct ath6kl *ar)
3722 {
3723 int i;
3724
3725 for (i = 0; i < AP_MAX_NUM_STA; i++)
3726 kfree(ar->sta_list[i].aggr_conn);
3727
3728 wiphy_free(ar->wiphy);
3729 }
3730
Linux kernel - Deliverables
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