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 #include <linux/sched/signal.h>
24
25 #include "core.h"
26 #include "cfg80211.h"
27 #include "debug.h"
28 #include "hif-ops.h"
29 #include "testmode.h"
30
31 #define RATETAB_ENT(_rate, _rateid, _flags) { \
32 .bitrate = (_rate), \
33 .flags = (_flags), \
34 .hw_value = (_rateid), \
35 }
36
37 #define CHAN2G(_channel, _freq, _flags) { \
38 .band = NL80211_BAND_2GHZ, \
39 .hw_value = (_channel), \
40 .center_freq = (_freq), \
41 .flags = (_flags), \
42 .max_antenna_gain = 0, \
43 .max_power = 30, \
44 }
45
46 #define CHAN5G(_channel, _flags) { \
47 .band = NL80211_BAND_5GHZ, \
48 .hw_value = (_channel), \
49 .center_freq = 5000 + (5 * (_channel)), \
50 .flags = (_flags), \
51 .max_antenna_gain = 0, \
52 .max_power = 30, \
53 }
54
55 #define DEFAULT_BG_SCAN_PERIOD 60
56
57 struct ath6kl_cfg80211_match_probe_ssid {
58 struct cfg80211_ssid ssid;
59 u8 flag;
60 };
61
62 static struct ieee80211_rate ath6kl_rates[] = {
63 RATETAB_ENT(10, 0x1, 0),
64 RATETAB_ENT(20, 0x2, 0),
65 RATETAB_ENT(55, 0x4, 0),
66 RATETAB_ENT(110, 0x8, 0),
67 RATETAB_ENT(60, 0x10, 0),
68 RATETAB_ENT(90, 0x20, 0),
69 RATETAB_ENT(120, 0x40, 0),
70 RATETAB_ENT(180, 0x80, 0),
71 RATETAB_ENT(240, 0x100, 0),
72 RATETAB_ENT(360, 0x200, 0),
73 RATETAB_ENT(480, 0x400, 0),
74 RATETAB_ENT(540, 0x800, 0),
75 };
76
77 #define ath6kl_a_rates (ath6kl_rates + 4)
78 #define ath6kl_a_rates_size 8
79 #define ath6kl_g_rates (ath6kl_rates + 0)
80 #define ath6kl_g_rates_size 12
81
82 #define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20
83 #define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \
84 IEEE80211_HT_CAP_SGI_20 | \
85 IEEE80211_HT_CAP_SGI_40)
86
87 static struct ieee80211_channel ath6kl_2ghz_channels[] = {
88 CHAN2G(1, 2412, 0),
89 CHAN2G(2, 2417, 0),
90 CHAN2G(3, 2422, 0),
91 CHAN2G(4, 2427, 0),
92 CHAN2G(5, 2432, 0),
93 CHAN2G(6, 2437, 0),
94 CHAN2G(7, 2442, 0),
95 CHAN2G(8, 2447, 0),
96 CHAN2G(9, 2452, 0),
97 CHAN2G(10, 2457, 0),
98 CHAN2G(11, 2462, 0),
99 CHAN2G(12, 2467, 0),
100 CHAN2G(13, 2472, 0),
101 CHAN2G(14, 2484, 0),
102 };
103
104 static struct ieee80211_channel ath6kl_5ghz_a_channels[] = {
105 CHAN5G(36, 0), CHAN5G(40, 0),
106 CHAN5G(44, 0), CHAN5G(48, 0),
107 CHAN5G(52, 0), CHAN5G(56, 0),
108 CHAN5G(60, 0), CHAN5G(64, 0),
109 CHAN5G(100, 0), CHAN5G(104, 0),
110 CHAN5G(108, 0), CHAN5G(112, 0),
111 CHAN5G(116, 0), CHAN5G(120, 0),
112 CHAN5G(124, 0), CHAN5G(128, 0),
113 CHAN5G(132, 0), CHAN5G(136, 0),
114 CHAN5G(140, 0), CHAN5G(149, 0),
115 CHAN5G(153, 0), CHAN5G(157, 0),
116 CHAN5G(161, 0), CHAN5G(165, 0),
117 CHAN5G(184, 0), CHAN5G(188, 0),
118 CHAN5G(192, 0), CHAN5G(196, 0),
119 CHAN5G(200, 0), CHAN5G(204, 0),
120 CHAN5G(208, 0), CHAN5G(212, 0),
121 CHAN5G(216, 0),
122 };
123
124 static struct ieee80211_supported_band ath6kl_band_2ghz = {
125 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels),
126 .channels = ath6kl_2ghz_channels,
127 .n_bitrates = ath6kl_g_rates_size,
128 .bitrates = ath6kl_g_rates,
129 .ht_cap.cap = ath6kl_g_htcap,
130 .ht_cap.ht_supported = true,
131 };
132
133 static struct ieee80211_supported_band ath6kl_band_5ghz = {
134 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels),
135 .channels = ath6kl_5ghz_a_channels,
136 .n_bitrates = ath6kl_a_rates_size,
137 .bitrates = ath6kl_a_rates,
138 .ht_cap.cap = ath6kl_a_htcap,
139 .ht_cap.ht_supported = true,
140 };
141
142 #define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */
143
144 /* returns true if scheduled scan was stopped */
__ath6kl_cfg80211_sscan_stop(struct ath6kl_vif * vif)145 static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif)
146 {
147 struct ath6kl *ar = vif->ar;
148
149 if (!test_and_clear_bit(SCHED_SCANNING, &vif->flags))
150 return false;
151
152 timer_delete_sync(&vif->sched_scan_timer);
153
154 if (ar->state == ATH6KL_STATE_RECOVERY)
155 return true;
156
157 ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, false);
158
159 return true;
160 }
161
ath6kl_cfg80211_sscan_disable(struct ath6kl_vif * vif)162 static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif)
163 {
164 struct ath6kl *ar = vif->ar;
165 bool stopped;
166
167 stopped = __ath6kl_cfg80211_sscan_stop(vif);
168
169 if (!stopped)
170 return;
171
172 cfg80211_sched_scan_stopped(ar->wiphy, 0);
173 }
174
ath6kl_set_wpa_version(struct ath6kl_vif * vif,enum nl80211_wpa_versions wpa_version)175 static int ath6kl_set_wpa_version(struct ath6kl_vif *vif,
176 enum nl80211_wpa_versions wpa_version)
177 {
178 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version);
179
180 if (!wpa_version) {
181 vif->auth_mode = NONE_AUTH;
182 } else if (wpa_version & NL80211_WPA_VERSION_2) {
183 vif->auth_mode = WPA2_AUTH;
184 } else if (wpa_version & NL80211_WPA_VERSION_1) {
185 vif->auth_mode = WPA_AUTH;
186 } else {
187 ath6kl_err("%s: %u not supported\n", __func__, wpa_version);
188 return -ENOTSUPP;
189 }
190
191 return 0;
192 }
193
ath6kl_set_auth_type(struct ath6kl_vif * vif,enum nl80211_auth_type auth_type)194 static int ath6kl_set_auth_type(struct ath6kl_vif *vif,
195 enum nl80211_auth_type auth_type)
196 {
197 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type);
198
199 switch (auth_type) {
200 case NL80211_AUTHTYPE_OPEN_SYSTEM:
201 vif->dot11_auth_mode = OPEN_AUTH;
202 break;
203 case NL80211_AUTHTYPE_SHARED_KEY:
204 vif->dot11_auth_mode = SHARED_AUTH;
205 break;
206 case NL80211_AUTHTYPE_NETWORK_EAP:
207 vif->dot11_auth_mode = LEAP_AUTH;
208 break;
209
210 case NL80211_AUTHTYPE_AUTOMATIC:
211 vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH;
212 break;
213
214 default:
215 ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type);
216 return -ENOTSUPP;
217 }
218
219 return 0;
220 }
221
ath6kl_set_cipher(struct ath6kl_vif * vif,u32 cipher,bool ucast)222 static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast)
223 {
224 u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto;
225 u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len :
226 &vif->grp_crypto_len;
227
228 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n",
229 __func__, cipher, ucast);
230
231 switch (cipher) {
232 case 0:
233 /* our own hack to use value 0 as no crypto used */
234 *ar_cipher = NONE_CRYPT;
235 *ar_cipher_len = 0;
236 break;
237 case WLAN_CIPHER_SUITE_WEP40:
238 *ar_cipher = WEP_CRYPT;
239 *ar_cipher_len = 5;
240 break;
241 case WLAN_CIPHER_SUITE_WEP104:
242 *ar_cipher = WEP_CRYPT;
243 *ar_cipher_len = 13;
244 break;
245 case WLAN_CIPHER_SUITE_TKIP:
246 *ar_cipher = TKIP_CRYPT;
247 *ar_cipher_len = 0;
248 break;
249 case WLAN_CIPHER_SUITE_CCMP:
250 *ar_cipher = AES_CRYPT;
251 *ar_cipher_len = 0;
252 break;
253 case WLAN_CIPHER_SUITE_SMS4:
254 *ar_cipher = WAPI_CRYPT;
255 *ar_cipher_len = 0;
256 break;
257 default:
258 ath6kl_err("cipher 0x%x not supported\n", cipher);
259 return -ENOTSUPP;
260 }
261
262 return 0;
263 }
264
ath6kl_set_key_mgmt(struct ath6kl_vif * vif,u32 key_mgmt)265 static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt)
266 {
267 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt);
268
269 if (key_mgmt == WLAN_AKM_SUITE_PSK) {
270 if (vif->auth_mode == WPA_AUTH)
271 vif->auth_mode = WPA_PSK_AUTH;
272 else if (vif->auth_mode == WPA2_AUTH)
273 vif->auth_mode = WPA2_PSK_AUTH;
274 } else if (key_mgmt == 0x00409600) {
275 if (vif->auth_mode == WPA_AUTH)
276 vif->auth_mode = WPA_AUTH_CCKM;
277 else if (vif->auth_mode == WPA2_AUTH)
278 vif->auth_mode = WPA2_AUTH_CCKM;
279 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) {
280 vif->auth_mode = NONE_AUTH;
281 }
282 }
283
ath6kl_cfg80211_ready(struct ath6kl_vif * vif)284 static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif)
285 {
286 struct ath6kl *ar = vif->ar;
287
288 if (!test_bit(WMI_READY, &ar->flag)) {
289 ath6kl_err("wmi is not ready\n");
290 return false;
291 }
292
293 if (!test_bit(WLAN_ENABLED, &vif->flags)) {
294 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "wlan disabled\n");
295 return false;
296 }
297
298 return true;
299 }
300
ath6kl_is_wpa_ie(const u8 * pos)301 static bool ath6kl_is_wpa_ie(const u8 *pos)
302 {
303 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
304 pos[2] == 0x00 && pos[3] == 0x50 &&
305 pos[4] == 0xf2 && pos[5] == 0x01;
306 }
307
ath6kl_is_rsn_ie(const u8 * pos)308 static bool ath6kl_is_rsn_ie(const u8 *pos)
309 {
310 return pos[0] == WLAN_EID_RSN;
311 }
312
ath6kl_is_wps_ie(const u8 * pos)313 static bool ath6kl_is_wps_ie(const u8 *pos)
314 {
315 return (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
316 pos[1] >= 4 &&
317 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 &&
318 pos[5] == 0x04);
319 }
320
ath6kl_set_assoc_req_ies(struct ath6kl_vif * vif,const u8 * ies,size_t ies_len)321 static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies,
322 size_t ies_len)
323 {
324 struct ath6kl *ar = vif->ar;
325 const u8 *pos;
326 u8 *buf = NULL;
327 size_t len = 0;
328 int ret;
329
330 /*
331 * Clear previously set flag
332 */
333
334 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
335
336 /*
337 * Filter out RSN/WPA IE(s)
338 */
339
340 if (ies && ies_len) {
341 buf = kmalloc(ies_len, GFP_KERNEL);
342 if (buf == NULL)
343 return -ENOMEM;
344 pos = ies;
345
346 while (pos + 1 < ies + ies_len) {
347 if (pos + 2 + pos[1] > ies + ies_len)
348 break;
349 if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) {
350 memcpy(buf + len, pos, 2 + pos[1]);
351 len += 2 + pos[1];
352 }
353
354 if (ath6kl_is_wps_ie(pos))
355 ar->connect_ctrl_flags |= CONNECT_WPS_FLAG;
356
357 pos += 2 + pos[1];
358 }
359 }
360
361 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
362 WMI_FRAME_ASSOC_REQ, buf, len);
363 kfree(buf);
364 return ret;
365 }
366
ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type,u8 * nw_type)367 static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type)
368 {
369 switch (type) {
370 case NL80211_IFTYPE_STATION:
371 case NL80211_IFTYPE_P2P_CLIENT:
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 case NL80211_IFTYPE_P2P_GO:
379 *nw_type = AP_NETWORK;
380 break;
381 default:
382 ath6kl_err("invalid interface type %u\n", type);
383 return -ENOTSUPP;
384 }
385
386 return 0;
387 }
388
ath6kl_is_valid_iftype(struct ath6kl * ar,enum nl80211_iftype type,u8 * if_idx,u8 * nw_type)389 static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type,
390 u8 *if_idx, u8 *nw_type)
391 {
392 int i;
393
394 if (ath6kl_nliftype_to_drv_iftype(type, nw_type))
395 return false;
396
397 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) &&
398 ar->num_vif))
399 return false;
400
401 if (type == NL80211_IFTYPE_STATION ||
402 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) {
403 for (i = 0; i < ar->vif_max; i++) {
404 if ((ar->avail_idx_map) & BIT(i)) {
405 *if_idx = i;
406 return true;
407 }
408 }
409 }
410
411 if (type == NL80211_IFTYPE_P2P_CLIENT ||
412 type == NL80211_IFTYPE_P2P_GO) {
413 for (i = ar->max_norm_iface; i < ar->vif_max; i++) {
414 if ((ar->avail_idx_map) & BIT(i)) {
415 *if_idx = i;
416 return true;
417 }
418 }
419 }
420
421 return false;
422 }
423
ath6kl_is_tx_pending(struct ath6kl * ar)424 static bool ath6kl_is_tx_pending(struct ath6kl *ar)
425 {
426 return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0;
427 }
428
ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif * vif,bool enable)429 static void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif,
430 bool enable)
431 {
432 int err;
433
434 if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag)))
435 return;
436
437 if (vif->nw_type != INFRA_NETWORK)
438 return;
439
440 if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE,
441 vif->ar->fw_capabilities))
442 return;
443
444 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n",
445 enable ? "enable" : "disable");
446
447 err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi,
448 vif->fw_vif_idx, enable);
449 if (err)
450 ath6kl_err("failed to %s enhanced bmiss detection: %d\n",
451 enable ? "enable" : "disable", err);
452 }
453
ath6kl_cfg80211_connect(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_connect_params * sme)454 static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
455 struct cfg80211_connect_params *sme)
456 {
457 struct ath6kl *ar = ath6kl_priv(dev);
458 struct ath6kl_vif *vif = netdev_priv(dev);
459 int status;
460 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE;
461 u16 interval;
462
463 ath6kl_cfg80211_sscan_disable(vif);
464
465 vif->sme_state = SME_CONNECTING;
466
467 if (!ath6kl_cfg80211_ready(vif))
468 return -EIO;
469
470 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
471 ath6kl_err("destroy in progress\n");
472 return -EBUSY;
473 }
474
475 if (test_bit(SKIP_SCAN, &ar->flag) &&
476 ((sme->channel && sme->channel->center_freq == 0) ||
477 (sme->bssid && is_zero_ether_addr(sme->bssid)))) {
478 ath6kl_err("SkipScan: channel or bssid invalid\n");
479 return -EINVAL;
480 }
481
482 if (down_interruptible(&ar->sem)) {
483 ath6kl_err("busy, couldn't get access\n");
484 return -ERESTARTSYS;
485 }
486
487 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
488 ath6kl_err("busy, destroy in progress\n");
489 up(&ar->sem);
490 return -EBUSY;
491 }
492
493 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) {
494 /*
495 * sleep until the command queue drains
496 */
497 wait_event_interruptible_timeout(ar->event_wq,
498 ath6kl_is_tx_pending(ar),
499 WMI_TIMEOUT);
500 if (signal_pending(current)) {
501 ath6kl_err("cmd queue drain timeout\n");
502 up(&ar->sem);
503 return -EINTR;
504 }
505 }
506
507 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len);
508 if (status) {
509 up(&ar->sem);
510 return status;
511 }
512
513 if (sme->ie == NULL || sme->ie_len == 0)
514 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
515
516 if (test_bit(CONNECTED, &vif->flags) &&
517 vif->ssid_len == sme->ssid_len &&
518 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
519 vif->reconnect_flag = true;
520 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx,
521 vif->req_bssid,
522 vif->ch_hint);
523
524 up(&ar->sem);
525 if (status) {
526 ath6kl_err("wmi_reconnect_cmd failed\n");
527 return -EIO;
528 }
529 return 0;
530 } else if (vif->ssid_len == sme->ssid_len &&
531 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
532 ath6kl_disconnect(vif);
533 }
534
535 memset(vif->ssid, 0, sizeof(vif->ssid));
536 vif->ssid_len = sme->ssid_len;
537 memcpy(vif->ssid, sme->ssid, sme->ssid_len);
538
539 if (sme->channel)
540 vif->ch_hint = sme->channel->center_freq;
541
542 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
543 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid))
544 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid));
545
546 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions);
547
548 status = ath6kl_set_auth_type(vif, sme->auth_type);
549 if (status) {
550 up(&ar->sem);
551 return status;
552 }
553
554 if (sme->crypto.n_ciphers_pairwise)
555 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true);
556 else
557 ath6kl_set_cipher(vif, 0, true);
558
559 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false);
560
561 if (sme->crypto.n_akm_suites)
562 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]);
563
564 if ((sme->key_len) &&
565 (vif->auth_mode == NONE_AUTH) &&
566 (vif->prwise_crypto == WEP_CRYPT)) {
567 struct ath6kl_key *key = NULL;
568
569 if (sme->key_idx > WMI_MAX_KEY_INDEX) {
570 ath6kl_err("key index %d out of bounds\n",
571 sme->key_idx);
572 up(&ar->sem);
573 return -ENOENT;
574 }
575
576 key = &vif->keys[sme->key_idx];
577 key->key_len = sme->key_len;
578 memcpy(key->key, sme->key, key->key_len);
579 key->cipher = vif->prwise_crypto;
580 vif->def_txkey_index = sme->key_idx;
581
582 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx,
583 vif->prwise_crypto,
584 GROUP_USAGE | TX_USAGE,
585 key->key_len,
586 NULL, 0,
587 key->key, KEY_OP_INIT_VAL, NULL,
588 NO_SYNC_WMIFLAG);
589 }
590
591 if (!ar->usr_bss_filter) {
592 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
593 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
594 ALL_BSS_FILTER, 0) != 0) {
595 ath6kl_err("couldn't set bss filtering\n");
596 up(&ar->sem);
597 return -EIO;
598 }
599 }
600
601 vif->nw_type = vif->next_mode;
602
603 /* enable enhanced bmiss detection if applicable */
604 ath6kl_cfg80211_sta_bmiss_enhance(vif, true);
605
606 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT)
607 nw_subtype = SUBTYPE_P2PCLIENT;
608
609 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
610 "%s: connect called with authmode %d dot11 auth %d"
611 " PW crypto %d PW crypto len %d GRP crypto %d"
612 " GRP crypto len %d channel hint %u\n",
613 __func__,
614 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
615 vif->prwise_crypto_len, vif->grp_crypto,
616 vif->grp_crypto_len, vif->ch_hint);
617
618 vif->reconnect_flag = 0;
619
620 if (vif->nw_type == INFRA_NETWORK) {
621 interval = max_t(u16, vif->listen_intvl_t,
622 ATH6KL_MAX_WOW_LISTEN_INTL);
623 status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
624 interval,
625 0);
626 if (status) {
627 ath6kl_err("couldn't set listen intervel\n");
628 up(&ar->sem);
629 return status;
630 }
631 }
632
633 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
634 vif->dot11_auth_mode, vif->auth_mode,
635 vif->prwise_crypto,
636 vif->prwise_crypto_len,
637 vif->grp_crypto, vif->grp_crypto_len,
638 vif->ssid_len, vif->ssid,
639 vif->req_bssid, vif->ch_hint,
640 ar->connect_ctrl_flags, nw_subtype);
641
642 if (sme->bg_scan_period == 0) {
643 /* disable background scan if period is 0 */
644 sme->bg_scan_period = 0xffff;
645 } else if (sme->bg_scan_period == -1) {
646 /* configure default value if not specified */
647 sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
648 }
649
650 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0,
651 sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
652
653 up(&ar->sem);
654
655 if (status == -EINVAL) {
656 memset(vif->ssid, 0, sizeof(vif->ssid));
657 vif->ssid_len = 0;
658 ath6kl_err("invalid request\n");
659 return -ENOENT;
660 } else if (status) {
661 ath6kl_err("ath6kl_wmi_connect_cmd failed\n");
662 return -EIO;
663 }
664
665 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) &&
666 ((vif->auth_mode == WPA_PSK_AUTH) ||
667 (vif->auth_mode == WPA2_PSK_AUTH))) {
668 mod_timer(&vif->disconnect_timer,
669 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL));
670 }
671
672 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD;
673 set_bit(CONNECT_PEND, &vif->flags);
674
675 return 0;
676 }
677
678 static struct cfg80211_bss *
ath6kl_add_bss_if_needed(struct ath6kl_vif * vif,enum network_type nw_type,const u8 * bssid,struct ieee80211_channel * chan,const u8 * beacon_ie,size_t beacon_ie_len)679 ath6kl_add_bss_if_needed(struct ath6kl_vif *vif,
680 enum network_type nw_type,
681 const u8 *bssid,
682 struct ieee80211_channel *chan,
683 const u8 *beacon_ie,
684 size_t beacon_ie_len)
685 {
686 struct ath6kl *ar = vif->ar;
687 struct cfg80211_bss *bss;
688 u16 cap_val;
689 enum ieee80211_bss_type bss_type;
690 u8 *ie;
691
692 if (nw_type & ADHOC_NETWORK) {
693 cap_val = WLAN_CAPABILITY_IBSS;
694 bss_type = IEEE80211_BSS_TYPE_IBSS;
695 } else {
696 cap_val = WLAN_CAPABILITY_ESS;
697 bss_type = IEEE80211_BSS_TYPE_ESS;
698 }
699
700 bss = cfg80211_get_bss(ar->wiphy, chan, bssid,
701 vif->ssid, vif->ssid_len,
702 bss_type, IEEE80211_PRIVACY_ANY);
703 if (bss == NULL) {
704 /*
705 * Since cfg80211 may not yet know about the BSS,
706 * generate a partial entry until the first BSS info
707 * event becomes available.
708 *
709 * Prepend SSID element since it is not included in the Beacon
710 * IEs from the target.
711 */
712 ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL);
713 if (ie == NULL)
714 return NULL;
715 ie[0] = WLAN_EID_SSID;
716 ie[1] = vif->ssid_len;
717 memcpy(ie + 2, vif->ssid, vif->ssid_len);
718 memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len);
719 bss = cfg80211_inform_bss(ar->wiphy, chan,
720 CFG80211_BSS_FTYPE_UNKNOWN,
721 bssid, 0, cap_val, 100,
722 ie, 2 + vif->ssid_len + beacon_ie_len,
723 0, GFP_KERNEL);
724 if (bss)
725 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
726 "added bss %pM to cfg80211\n", bssid);
727 kfree(ie);
728 } else {
729 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n");
730 }
731
732 return bss;
733 }
734
ath6kl_cfg80211_connect_event(struct ath6kl_vif * vif,u16 channel,u8 * bssid,u16 listen_intvl,u16 beacon_intvl,enum network_type nw_type,u8 beacon_ie_len,u8 assoc_req_len,u8 assoc_resp_len,u8 * assoc_info)735 void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel,
736 u8 *bssid, u16 listen_intvl,
737 u16 beacon_intvl,
738 enum network_type nw_type,
739 u8 beacon_ie_len, u8 assoc_req_len,
740 u8 assoc_resp_len, u8 *assoc_info)
741 {
742 struct ieee80211_channel *chan;
743 struct ath6kl *ar = vif->ar;
744 struct cfg80211_bss *bss;
745
746 /* capinfo + listen interval */
747 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16);
748
749 /* capinfo + status code + associd */
750 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16);
751
752 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset;
753 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len +
754 assoc_resp_ie_offset;
755
756 assoc_req_len -= assoc_req_ie_offset;
757 assoc_resp_len -= assoc_resp_ie_offset;
758
759 /*
760 * Store Beacon interval here; DTIM period will be available only once
761 * a Beacon frame from the AP is seen.
762 */
763 vif->assoc_bss_beacon_int = beacon_intvl;
764 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags);
765
766 if (nw_type & ADHOC_NETWORK) {
767 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) {
768 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
769 "%s: ath6k not in ibss mode\n", __func__);
770 return;
771 }
772 }
773
774 if (nw_type & INFRA_NETWORK) {
775 if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
776 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
777 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
778 "%s: ath6k not in station mode\n", __func__);
779 return;
780 }
781 }
782
783 chan = ieee80211_get_channel(ar->wiphy, (int) channel);
784
785 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan,
786 assoc_info, beacon_ie_len);
787 if (!bss) {
788 ath6kl_err("could not add cfg80211 bss entry\n");
789 return;
790 }
791
792 if (nw_type & ADHOC_NETWORK) {
793 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n",
794 nw_type & ADHOC_CREATOR ? "creator" : "joiner");
795 cfg80211_ibss_joined(vif->ndev, bssid, chan, GFP_KERNEL);
796 cfg80211_put_bss(ar->wiphy, bss);
797 return;
798 }
799
800 if (vif->sme_state == SME_CONNECTING) {
801 /* inform connect result to cfg80211 */
802 vif->sme_state = SME_CONNECTED;
803 cfg80211_connect_result(vif->ndev, bssid,
804 assoc_req_ie, assoc_req_len,
805 assoc_resp_ie, assoc_resp_len,
806 WLAN_STATUS_SUCCESS, GFP_KERNEL);
807 cfg80211_put_bss(ar->wiphy, bss);
808 } else if (vif->sme_state == SME_CONNECTED) {
809 struct cfg80211_roam_info roam_info = {
810 .links[0].bss = bss,
811 .req_ie = assoc_req_ie,
812 .req_ie_len = assoc_req_len,
813 .resp_ie = assoc_resp_ie,
814 .resp_ie_len = assoc_resp_len,
815 };
816 /* inform roam event to cfg80211 */
817 cfg80211_roamed(vif->ndev, &roam_info, GFP_KERNEL);
818 }
819 }
820
ath6kl_cfg80211_disconnect(struct wiphy * wiphy,struct net_device * dev,u16 reason_code)821 static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy,
822 struct net_device *dev, u16 reason_code)
823 {
824 struct ath6kl *ar = ath6kl_priv(dev);
825 struct ath6kl_vif *vif = netdev_priv(dev);
826
827 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__,
828 reason_code);
829
830 ath6kl_cfg80211_sscan_disable(vif);
831
832 if (!ath6kl_cfg80211_ready(vif))
833 return -EIO;
834
835 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
836 ath6kl_err("busy, destroy in progress\n");
837 return -EBUSY;
838 }
839
840 if (down_interruptible(&ar->sem)) {
841 ath6kl_err("busy, couldn't get access\n");
842 return -ERESTARTSYS;
843 }
844
845 vif->reconnect_flag = 0;
846 ath6kl_disconnect(vif);
847 memset(vif->ssid, 0, sizeof(vif->ssid));
848 vif->ssid_len = 0;
849
850 if (!test_bit(SKIP_SCAN, &ar->flag))
851 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
852
853 up(&ar->sem);
854
855 return 0;
856 }
857
ath6kl_cfg80211_disconnect_event(struct ath6kl_vif * vif,u8 reason,u8 * bssid,u8 assoc_resp_len,u8 * assoc_info,u16 proto_reason)858 void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason,
859 u8 *bssid, u8 assoc_resp_len,
860 u8 *assoc_info, u16 proto_reason)
861 {
862 struct ath6kl *ar = vif->ar;
863
864 if (vif->scan_req) {
865 struct cfg80211_scan_info info = {
866 .aborted = true,
867 };
868
869 cfg80211_scan_done(vif->scan_req, &info);
870 vif->scan_req = NULL;
871 }
872
873 if (vif->nw_type & ADHOC_NETWORK) {
874 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC)
875 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
876 "%s: ath6k not in ibss mode\n", __func__);
877 return;
878 }
879
880 if (vif->nw_type & INFRA_NETWORK) {
881 if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
882 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
883 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
884 "%s: ath6k not in station mode\n", __func__);
885 return;
886 }
887 }
888
889 clear_bit(CONNECT_PEND, &vif->flags);
890
891 if (vif->sme_state == SME_CONNECTING) {
892 cfg80211_connect_result(vif->ndev,
893 bssid, NULL, 0,
894 NULL, 0,
895 WLAN_STATUS_UNSPECIFIED_FAILURE,
896 GFP_KERNEL);
897 } else if (vif->sme_state == SME_CONNECTED) {
898 cfg80211_disconnected(vif->ndev, proto_reason,
899 NULL, 0, false, GFP_KERNEL);
900 }
901
902 vif->sme_state = SME_DISCONNECTED;
903
904 /*
905 * Send a disconnect command to target when a disconnect event is
906 * received with reason code other than 3 (DISCONNECT_CMD - disconnect
907 * request from host) to make the firmware stop trying to connect even
908 * after giving disconnect event. There will be one more disconnect
909 * event for this disconnect command with reason code DISCONNECT_CMD
910 * which won't be notified to cfg80211.
911 */
912 if (reason != DISCONNECT_CMD)
913 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
914 }
915
ath6kl_set_probed_ssids(struct ath6kl * ar,struct ath6kl_vif * vif,struct cfg80211_ssid * ssids,int n_ssids,struct cfg80211_match_set * match_set,int n_match_ssid)916 static int ath6kl_set_probed_ssids(struct ath6kl *ar,
917 struct ath6kl_vif *vif,
918 struct cfg80211_ssid *ssids, int n_ssids,
919 struct cfg80211_match_set *match_set,
920 int n_match_ssid)
921 {
922 u8 i, j, index_to_add, ssid_found = false;
923 struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS];
924
925 memset(ssid_list, 0, sizeof(ssid_list));
926
927 if (n_ssids > MAX_PROBED_SSIDS ||
928 n_match_ssid > MAX_PROBED_SSIDS)
929 return -EINVAL;
930
931 for (i = 0; i < n_ssids; i++) {
932 memcpy(ssid_list[i].ssid.ssid,
933 ssids[i].ssid,
934 ssids[i].ssid_len);
935 ssid_list[i].ssid.ssid_len = ssids[i].ssid_len;
936
937 if (ssids[i].ssid_len)
938 ssid_list[i].flag = SPECIFIC_SSID_FLAG;
939 else
940 ssid_list[i].flag = ANY_SSID_FLAG;
941
942 if (ar->wiphy->max_match_sets != 0 && n_match_ssid == 0)
943 ssid_list[i].flag |= MATCH_SSID_FLAG;
944 }
945
946 index_to_add = i;
947
948 for (i = 0; i < n_match_ssid; i++) {
949 ssid_found = false;
950
951 for (j = 0; j < n_ssids; j++) {
952 if ((match_set[i].ssid.ssid_len ==
953 ssid_list[j].ssid.ssid_len) &&
954 (!memcmp(ssid_list[j].ssid.ssid,
955 match_set[i].ssid.ssid,
956 match_set[i].ssid.ssid_len))) {
957 ssid_list[j].flag |= MATCH_SSID_FLAG;
958 ssid_found = true;
959 break;
960 }
961 }
962
963 if (ssid_found)
964 continue;
965
966 if (index_to_add >= MAX_PROBED_SSIDS)
967 continue;
968
969 ssid_list[index_to_add].ssid.ssid_len =
970 match_set[i].ssid.ssid_len;
971 memcpy(ssid_list[index_to_add].ssid.ssid,
972 match_set[i].ssid.ssid,
973 match_set[i].ssid.ssid_len);
974 ssid_list[index_to_add].flag |= MATCH_SSID_FLAG;
975 index_to_add++;
976 }
977
978 for (i = 0; i < index_to_add; i++) {
979 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i,
980 ssid_list[i].flag,
981 ssid_list[i].ssid.ssid_len,
982 ssid_list[i].ssid.ssid);
983 }
984
985 /* Make sure no old entries are left behind */
986 for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) {
987 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i,
988 DISABLE_SSID_FLAG, 0, NULL);
989 }
990
991 return 0;
992 }
993
ath6kl_cfg80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * request)994 static int ath6kl_cfg80211_scan(struct wiphy *wiphy,
995 struct cfg80211_scan_request *request)
996 {
997 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev);
998 struct ath6kl *ar = ath6kl_priv(vif->ndev);
999 s8 n_channels = 0;
1000 u16 *channels = NULL;
1001 int ret = 0;
1002 u32 force_fg_scan = 0;
1003
1004 if (!ath6kl_cfg80211_ready(vif))
1005 return -EIO;
1006
1007 ath6kl_cfg80211_sscan_disable(vif);
1008
1009 if (!ar->usr_bss_filter) {
1010 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
1011 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1012 ALL_BSS_FILTER, 0);
1013 if (ret) {
1014 ath6kl_err("couldn't set bss filtering\n");
1015 return ret;
1016 }
1017 }
1018
1019 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
1020 request->n_ssids, NULL, 0);
1021 if (ret < 0)
1022 return ret;
1023
1024 /* this also clears IE in fw if it's not set */
1025 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
1026 WMI_FRAME_PROBE_REQ,
1027 request->ie, request->ie_len);
1028 if (ret) {
1029 ath6kl_err("failed to set Probe Request appie for scan\n");
1030 return ret;
1031 }
1032
1033 /*
1034 * Scan only the requested channels if the request specifies a set of
1035 * channels. If the list is longer than the target supports, do not
1036 * configure the list and instead, scan all available channels.
1037 */
1038 if (request->n_channels > 0 &&
1039 request->n_channels <= WMI_MAX_CHANNELS) {
1040 u8 i;
1041
1042 n_channels = request->n_channels;
1043
1044 channels = kcalloc(n_channels, sizeof(u16), GFP_KERNEL);
1045 if (channels == NULL) {
1046 ath6kl_warn("failed to set scan channels, scan all channels");
1047 n_channels = 0;
1048 }
1049
1050 for (i = 0; i < n_channels; i++)
1051 channels[i] = request->channels[i]->center_freq;
1052 }
1053
1054 if (test_bit(CONNECTED, &vif->flags))
1055 force_fg_scan = 1;
1056
1057 vif->scan_req = request;
1058
1059 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx,
1060 WMI_LONG_SCAN, force_fg_scan,
1061 false, 0,
1062 ATH6KL_FG_SCAN_INTERVAL,
1063 n_channels, channels,
1064 request->no_cck,
1065 request->rates);
1066 if (ret) {
1067 ath6kl_err("failed to start scan: %d\n", ret);
1068 vif->scan_req = NULL;
1069 }
1070
1071 kfree(channels);
1072
1073 return ret;
1074 }
1075
ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif * vif,bool aborted)1076 void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted)
1077 {
1078 struct ath6kl *ar = vif->ar;
1079 struct cfg80211_scan_info info = {
1080 .aborted = aborted,
1081 };
1082 int i;
1083
1084 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__,
1085 aborted ? " aborted" : "");
1086
1087 if (!vif->scan_req)
1088 return;
1089
1090 if (aborted)
1091 goto out;
1092
1093 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) {
1094 for (i = 0; i < vif->scan_req->n_ssids; i++) {
1095 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
1096 i, DISABLE_SSID_FLAG,
1097 0, NULL);
1098 }
1099 }
1100
1101 out:
1102 cfg80211_scan_done(vif->scan_req, &info);
1103 vif->scan_req = NULL;
1104 }
1105
ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif * vif,int freq,enum wmi_phy_mode mode)1106 void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq,
1107 enum wmi_phy_mode mode)
1108 {
1109 struct cfg80211_chan_def chandef;
1110
1111 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1112 "channel switch notify nw_type %d freq %d mode %d\n",
1113 vif->nw_type, freq, mode);
1114
1115 cfg80211_chandef_create(&chandef,
1116 ieee80211_get_channel(vif->ar->wiphy, freq),
1117 (mode == WMI_11G_HT20 &&
1118 ath6kl_band_2ghz.ht_cap.ht_supported) ?
1119 NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT);
1120
1121 wiphy_lock(vif->ar->wiphy);
1122 cfg80211_ch_switch_notify(vif->ndev, &chandef, 0);
1123 wiphy_unlock(vif->ar->wiphy);
1124 }
1125
ath6kl_cfg80211_add_key(struct wiphy * wiphy,struct net_device * ndev,int link_id,u8 key_index,bool pairwise,const u8 * mac_addr,struct key_params * params)1126 static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
1127 int link_id, u8 key_index, bool pairwise,
1128 const u8 *mac_addr,
1129 struct key_params *params)
1130 {
1131 struct ath6kl *ar = ath6kl_priv(ndev);
1132 struct ath6kl_vif *vif = netdev_priv(ndev);
1133 struct ath6kl_key *key = NULL;
1134 int seq_len;
1135 u8 key_usage;
1136 u8 key_type;
1137
1138 if (!ath6kl_cfg80211_ready(vif))
1139 return -EIO;
1140
1141 if (params->cipher == CCKM_KRK_CIPHER_SUITE) {
1142 if (params->key_len != WMI_KRK_LEN)
1143 return -EINVAL;
1144 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx,
1145 params->key);
1146 }
1147
1148 if (key_index > WMI_MAX_KEY_INDEX) {
1149 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1150 "%s: key index %d out of bounds\n", __func__,
1151 key_index);
1152 return -ENOENT;
1153 }
1154
1155 key = &vif->keys[key_index];
1156 memset(key, 0, sizeof(struct ath6kl_key));
1157
1158 if (pairwise)
1159 key_usage = PAIRWISE_USAGE;
1160 else
1161 key_usage = GROUP_USAGE;
1162
1163 seq_len = params->seq_len;
1164 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 &&
1165 seq_len > ATH6KL_KEY_SEQ_LEN) {
1166 /* Only first half of the WPI PN is configured */
1167 seq_len = ATH6KL_KEY_SEQ_LEN;
1168 }
1169 if (params->key_len > WLAN_MAX_KEY_LEN ||
1170 seq_len > sizeof(key->seq))
1171 return -EINVAL;
1172
1173 key->key_len = params->key_len;
1174 memcpy(key->key, params->key, key->key_len);
1175 key->seq_len = seq_len;
1176 memcpy(key->seq, params->seq, key->seq_len);
1177 key->cipher = params->cipher;
1178
1179 switch (key->cipher) {
1180 case WLAN_CIPHER_SUITE_WEP40:
1181 case WLAN_CIPHER_SUITE_WEP104:
1182 key_type = WEP_CRYPT;
1183 break;
1184
1185 case WLAN_CIPHER_SUITE_TKIP:
1186 key_type = TKIP_CRYPT;
1187 break;
1188
1189 case WLAN_CIPHER_SUITE_CCMP:
1190 key_type = AES_CRYPT;
1191 break;
1192 case WLAN_CIPHER_SUITE_SMS4:
1193 key_type = WAPI_CRYPT;
1194 break;
1195
1196 default:
1197 return -ENOTSUPP;
1198 }
1199
1200 if (((vif->auth_mode == WPA_PSK_AUTH) ||
1201 (vif->auth_mode == WPA2_PSK_AUTH)) &&
1202 (key_usage & GROUP_USAGE))
1203 timer_delete(&vif->disconnect_timer);
1204
1205 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1206 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n",
1207 __func__, key_index, key->key_len, key_type,
1208 key_usage, key->seq_len);
1209
1210 if (vif->nw_type == AP_NETWORK && !pairwise &&
1211 (key_type == TKIP_CRYPT || key_type == AES_CRYPT ||
1212 key_type == WAPI_CRYPT)) {
1213 ar->ap_mode_bkey.valid = true;
1214 ar->ap_mode_bkey.key_index = key_index;
1215 ar->ap_mode_bkey.key_type = key_type;
1216 ar->ap_mode_bkey.key_len = key->key_len;
1217 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len);
1218 if (!test_bit(CONNECTED, &vif->flags)) {
1219 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1220 "Delay initial group key configuration until AP mode has been started\n");
1221 /*
1222 * The key will be set in ath6kl_connect_ap_mode() once
1223 * the connected event is received from the target.
1224 */
1225 return 0;
1226 }
1227 }
1228
1229 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT &&
1230 !test_bit(CONNECTED, &vif->flags)) {
1231 /*
1232 * Store the key locally so that it can be re-configured after
1233 * the AP mode has properly started
1234 * (ath6kl_install_statioc_wep_keys).
1235 */
1236 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1237 "Delay WEP key configuration until AP mode has been started\n");
1238 vif->wep_key_list[key_index].key_len = key->key_len;
1239 memcpy(vif->wep_key_list[key_index].key, key->key,
1240 key->key_len);
1241 return 0;
1242 }
1243
1244 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index,
1245 key_type, key_usage, key->key_len,
1246 key->seq, key->seq_len, key->key,
1247 KEY_OP_INIT_VAL,
1248 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG);
1249 }
1250
ath6kl_cfg80211_del_key(struct wiphy * wiphy,struct net_device * ndev,int link_id,u8 key_index,bool pairwise,const u8 * mac_addr)1251 static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
1252 int link_id, u8 key_index, bool pairwise,
1253 const u8 *mac_addr)
1254 {
1255 struct ath6kl *ar = ath6kl_priv(ndev);
1256 struct ath6kl_vif *vif = netdev_priv(ndev);
1257
1258 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1259
1260 if (!ath6kl_cfg80211_ready(vif))
1261 return -EIO;
1262
1263 if (key_index > WMI_MAX_KEY_INDEX) {
1264 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1265 "%s: key index %d out of bounds\n", __func__,
1266 key_index);
1267 return -ENOENT;
1268 }
1269
1270 if (!vif->keys[key_index].key_len) {
1271 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1272 "%s: index %d is empty\n", __func__, key_index);
1273 return 0;
1274 }
1275
1276 vif->keys[key_index].key_len = 0;
1277
1278 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index);
1279 }
1280
ath6kl_cfg80211_get_key(struct wiphy * wiphy,struct net_device * ndev,int link_id,u8 key_index,bool pairwise,const u8 * mac_addr,void * cookie,void (* callback)(void * cookie,struct key_params *))1281 static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
1282 int link_id, u8 key_index, bool pairwise,
1283 const u8 *mac_addr, void *cookie,
1284 void (*callback) (void *cookie,
1285 struct key_params *))
1286 {
1287 struct ath6kl_vif *vif = netdev_priv(ndev);
1288 struct ath6kl_key *key = NULL;
1289 struct key_params params;
1290
1291 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1292
1293 if (!ath6kl_cfg80211_ready(vif))
1294 return -EIO;
1295
1296 if (key_index > WMI_MAX_KEY_INDEX) {
1297 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1298 "%s: key index %d out of bounds\n", __func__,
1299 key_index);
1300 return -ENOENT;
1301 }
1302
1303 key = &vif->keys[key_index];
1304 memset(¶ms, 0, sizeof(params));
1305 params.cipher = key->cipher;
1306 params.key_len = key->key_len;
1307 params.seq_len = key->seq_len;
1308 params.seq = key->seq;
1309 params.key = key->key;
1310
1311 callback(cookie, ¶ms);
1312
1313 return key->key_len ? 0 : -ENOENT;
1314 }
1315
ath6kl_cfg80211_set_default_key(struct wiphy * wiphy,struct net_device * ndev,int link_id,u8 key_index,bool unicast,bool multicast)1316 static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy,
1317 struct net_device *ndev, int link_id,
1318 u8 key_index, bool unicast,
1319 bool multicast)
1320 {
1321 struct ath6kl *ar = ath6kl_priv(ndev);
1322 struct ath6kl_vif *vif = netdev_priv(ndev);
1323 struct ath6kl_key *key = NULL;
1324 u8 key_usage;
1325 enum ath6kl_crypto_type key_type = NONE_CRYPT;
1326
1327 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1328
1329 if (!ath6kl_cfg80211_ready(vif))
1330 return -EIO;
1331
1332 if (key_index > WMI_MAX_KEY_INDEX) {
1333 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1334 "%s: key index %d out of bounds\n",
1335 __func__, key_index);
1336 return -ENOENT;
1337 }
1338
1339 if (!vif->keys[key_index].key_len) {
1340 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n",
1341 __func__, key_index);
1342 return -EINVAL;
1343 }
1344
1345 vif->def_txkey_index = key_index;
1346 key = &vif->keys[vif->def_txkey_index];
1347 key_usage = GROUP_USAGE;
1348 if (vif->prwise_crypto == WEP_CRYPT)
1349 key_usage |= TX_USAGE;
1350 if (unicast)
1351 key_type = vif->prwise_crypto;
1352 if (multicast)
1353 key_type = vif->grp_crypto;
1354
1355 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags))
1356 return 0; /* Delay until AP mode has been started */
1357
1358 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx,
1359 vif->def_txkey_index,
1360 key_type, key_usage,
1361 key->key_len, key->seq, key->seq_len,
1362 key->key,
1363 KEY_OP_INIT_VAL, NULL,
1364 SYNC_BOTH_WMIFLAG);
1365 }
1366
ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif * vif,u8 keyid,bool ismcast)1367 void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid,
1368 bool ismcast)
1369 {
1370 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1371 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast);
1372
1373 cfg80211_michael_mic_failure(vif->ndev, vif->bssid,
1374 (ismcast ? NL80211_KEYTYPE_GROUP :
1375 NL80211_KEYTYPE_PAIRWISE), keyid, NULL,
1376 GFP_KERNEL);
1377 }
1378
ath6kl_cfg80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)1379 static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1380 {
1381 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1382 struct ath6kl_vif *vif;
1383 int ret;
1384
1385 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__,
1386 changed);
1387
1388 vif = ath6kl_vif_first(ar);
1389 if (!vif)
1390 return -EIO;
1391
1392 if (!ath6kl_cfg80211_ready(vif))
1393 return -EIO;
1394
1395 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1396 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold);
1397 if (ret != 0) {
1398 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n");
1399 return -EIO;
1400 }
1401 }
1402
1403 return 0;
1404 }
1405
ath6kl_cfg80211_set_txpower(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)1406 static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy,
1407 struct wireless_dev *wdev,
1408 enum nl80211_tx_power_setting type,
1409 int mbm)
1410 {
1411 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1412 struct ath6kl_vif *vif;
1413 int dbm = MBM_TO_DBM(mbm);
1414
1415 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__,
1416 type, dbm);
1417
1418 vif = ath6kl_vif_first(ar);
1419 if (!vif)
1420 return -EIO;
1421
1422 if (!ath6kl_cfg80211_ready(vif))
1423 return -EIO;
1424
1425 switch (type) {
1426 case NL80211_TX_POWER_AUTOMATIC:
1427 return 0;
1428 case NL80211_TX_POWER_LIMITED:
1429 ar->tx_pwr = dbm;
1430 break;
1431 default:
1432 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n",
1433 __func__, type);
1434 return -EOPNOTSUPP;
1435 }
1436
1437 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm);
1438
1439 return 0;
1440 }
1441
ath6kl_cfg80211_get_txpower(struct wiphy * wiphy,struct wireless_dev * wdev,unsigned int link_id,int * dbm)1442 static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy,
1443 struct wireless_dev *wdev,
1444 unsigned int link_id,
1445 int *dbm)
1446 {
1447 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1448 struct ath6kl_vif *vif;
1449
1450 vif = ath6kl_vif_first(ar);
1451 if (!vif)
1452 return -EIO;
1453
1454 if (!ath6kl_cfg80211_ready(vif))
1455 return -EIO;
1456
1457 if (test_bit(CONNECTED, &vif->flags)) {
1458 ar->tx_pwr = 255;
1459
1460 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) {
1461 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n");
1462 return -EIO;
1463 }
1464
1465 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 255,
1466 5 * HZ);
1467
1468 if (signal_pending(current)) {
1469 ath6kl_err("target did not respond\n");
1470 return -EINTR;
1471 }
1472 }
1473
1474 *dbm = ar->tx_pwr;
1475 return 0;
1476 }
1477
ath6kl_cfg80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool pmgmt,int timeout)1478 static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
1479 struct net_device *dev,
1480 bool pmgmt, int timeout)
1481 {
1482 struct ath6kl *ar = ath6kl_priv(dev);
1483 struct wmi_power_mode_cmd mode;
1484 struct ath6kl_vif *vif = netdev_priv(dev);
1485
1486 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",
1487 __func__, pmgmt, timeout);
1488
1489 if (!ath6kl_cfg80211_ready(vif))
1490 return -EIO;
1491
1492 if (pmgmt) {
1493 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);
1494 mode.pwr_mode = REC_POWER;
1495 } else {
1496 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);
1497 mode.pwr_mode = MAX_PERF_POWER;
1498 }
1499
1500 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx,
1501 mode.pwr_mode) != 0) {
1502 ath6kl_err("wmi_powermode_cmd failed\n");
1503 return -EIO;
1504 }
1505
1506 return 0;
1507 }
1508
ath6kl_cfg80211_add_iface(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,struct vif_params * params)1509 static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy,
1510 const char *name,
1511 unsigned char name_assign_type,
1512 enum nl80211_iftype type,
1513 struct vif_params *params)
1514 {
1515 struct ath6kl *ar = wiphy_priv(wiphy);
1516 struct wireless_dev *wdev;
1517 u8 if_idx, nw_type;
1518
1519 if (ar->num_vif == ar->vif_max) {
1520 ath6kl_err("Reached maximum number of supported vif\n");
1521 return ERR_PTR(-EINVAL);
1522 }
1523
1524 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) {
1525 ath6kl_err("Not a supported interface type\n");
1526 return ERR_PTR(-EINVAL);
1527 }
1528
1529 wdev = ath6kl_interface_add(ar, name, name_assign_type, type, if_idx, nw_type);
1530 if (!wdev)
1531 return ERR_PTR(-ENOMEM);
1532
1533 ar->num_vif++;
1534
1535 return wdev;
1536 }
1537
ath6kl_cfg80211_del_iface(struct wiphy * wiphy,struct wireless_dev * wdev)1538 static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy,
1539 struct wireless_dev *wdev)
1540 {
1541 struct ath6kl *ar = wiphy_priv(wiphy);
1542 struct ath6kl_vif *vif = netdev_priv(wdev->netdev);
1543
1544 spin_lock_bh(&ar->list_lock);
1545 list_del(&vif->list);
1546 spin_unlock_bh(&ar->list_lock);
1547
1548 ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag));
1549
1550 rtnl_lock();
1551 ath6kl_cfg80211_vif_cleanup(vif);
1552 rtnl_unlock();
1553
1554 return 0;
1555 }
1556
ath6kl_cfg80211_change_iface(struct wiphy * wiphy,struct net_device * ndev,enum nl80211_iftype type,struct vif_params * params)1557 static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
1558 struct net_device *ndev,
1559 enum nl80211_iftype type,
1560 struct vif_params *params)
1561 {
1562 struct ath6kl_vif *vif = netdev_priv(ndev);
1563 int i;
1564
1565 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
1566
1567 /*
1568 * Don't bring up p2p on an interface which is not initialized
1569 * for p2p operation where fw does not have capability to switch
1570 * dynamically between non-p2p and p2p type interface.
1571 */
1572 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
1573 vif->ar->fw_capabilities) &&
1574 (type == NL80211_IFTYPE_P2P_CLIENT ||
1575 type == NL80211_IFTYPE_P2P_GO)) {
1576 if (vif->ar->vif_max == 1) {
1577 if (vif->fw_vif_idx != 0)
1578 return -EINVAL;
1579 else
1580 goto set_iface_type;
1581 }
1582
1583 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) {
1584 if (i == vif->fw_vif_idx)
1585 break;
1586 }
1587
1588 if (i == vif->ar->vif_max) {
1589 ath6kl_err("Invalid interface to bring up P2P\n");
1590 return -EINVAL;
1591 }
1592 }
1593
1594 /* need to clean up enhanced bmiss detection fw state */
1595 ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
1596
1597 set_iface_type:
1598 switch (type) {
1599 case NL80211_IFTYPE_STATION:
1600 case NL80211_IFTYPE_P2P_CLIENT:
1601 vif->next_mode = INFRA_NETWORK;
1602 break;
1603 case NL80211_IFTYPE_ADHOC:
1604 vif->next_mode = ADHOC_NETWORK;
1605 break;
1606 case NL80211_IFTYPE_AP:
1607 case NL80211_IFTYPE_P2P_GO:
1608 vif->next_mode = AP_NETWORK;
1609 break;
1610 default:
1611 ath6kl_err("invalid interface type %u\n", type);
1612 return -EOPNOTSUPP;
1613 }
1614
1615 vif->wdev.iftype = type;
1616
1617 return 0;
1618 }
1619
ath6kl_cfg80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * ibss_param)1620 static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,
1621 struct net_device *dev,
1622 struct cfg80211_ibss_params *ibss_param)
1623 {
1624 struct ath6kl *ar = ath6kl_priv(dev);
1625 struct ath6kl_vif *vif = netdev_priv(dev);
1626 int status;
1627
1628 if (!ath6kl_cfg80211_ready(vif))
1629 return -EIO;
1630
1631 vif->ssid_len = ibss_param->ssid_len;
1632 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len);
1633
1634 if (ibss_param->chandef.chan)
1635 vif->ch_hint = ibss_param->chandef.chan->center_freq;
1636
1637 if (ibss_param->channel_fixed) {
1638 /*
1639 * TODO: channel_fixed: The channel should be fixed, do not
1640 * search for IBSSs to join on other channels. Target
1641 * firmware does not support this feature, needs to be
1642 * updated.
1643 */
1644 return -EOPNOTSUPP;
1645 }
1646
1647 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
1648 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))
1649 memcpy(vif->req_bssid, ibss_param->bssid,
1650 sizeof(vif->req_bssid));
1651
1652 ath6kl_set_wpa_version(vif, 0);
1653
1654 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM);
1655 if (status)
1656 return status;
1657
1658 if (ibss_param->privacy) {
1659 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true);
1660 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false);
1661 } else {
1662 ath6kl_set_cipher(vif, 0, true);
1663 ath6kl_set_cipher(vif, 0, false);
1664 }
1665
1666 vif->nw_type = vif->next_mode;
1667
1668 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1669 "%s: connect called with authmode %d dot11 auth %d"
1670 " PW crypto %d PW crypto len %d GRP crypto %d"
1671 " GRP crypto len %d channel hint %u\n",
1672 __func__,
1673 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
1674 vif->prwise_crypto_len, vif->grp_crypto,
1675 vif->grp_crypto_len, vif->ch_hint);
1676
1677 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
1678 vif->dot11_auth_mode, vif->auth_mode,
1679 vif->prwise_crypto,
1680 vif->prwise_crypto_len,
1681 vif->grp_crypto, vif->grp_crypto_len,
1682 vif->ssid_len, vif->ssid,
1683 vif->req_bssid, vif->ch_hint,
1684 ar->connect_ctrl_flags, SUBTYPE_NONE);
1685 set_bit(CONNECT_PEND, &vif->flags);
1686
1687 return 0;
1688 }
1689
ath6kl_cfg80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)1690 static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,
1691 struct net_device *dev)
1692 {
1693 struct ath6kl_vif *vif = netdev_priv(dev);
1694
1695 if (!ath6kl_cfg80211_ready(vif))
1696 return -EIO;
1697
1698 ath6kl_disconnect(vif);
1699 memset(vif->ssid, 0, sizeof(vif->ssid));
1700 vif->ssid_len = 0;
1701
1702 return 0;
1703 }
1704
1705 static const u32 cipher_suites[] = {
1706 WLAN_CIPHER_SUITE_WEP40,
1707 WLAN_CIPHER_SUITE_WEP104,
1708 WLAN_CIPHER_SUITE_TKIP,
1709 WLAN_CIPHER_SUITE_CCMP,
1710 CCKM_KRK_CIPHER_SUITE,
1711 WLAN_CIPHER_SUITE_SMS4,
1712 };
1713
is_rate_legacy(s32 rate)1714 static bool is_rate_legacy(s32 rate)
1715 {
1716 static const s32 legacy[] = { 1000, 2000, 5500, 11000,
1717 6000, 9000, 12000, 18000, 24000,
1718 36000, 48000, 54000
1719 };
1720 u8 i;
1721
1722 for (i = 0; i < ARRAY_SIZE(legacy); i++)
1723 if (rate == legacy[i])
1724 return true;
1725
1726 return false;
1727 }
1728
is_rate_ht20(s32 rate,u8 * mcs,bool * sgi)1729 static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
1730 {
1731 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
1732 52000, 58500, 65000, 72200
1733 };
1734 u8 i;
1735
1736 for (i = 0; i < ARRAY_SIZE(ht20); i++) {
1737 if (rate == ht20[i]) {
1738 if (i == ARRAY_SIZE(ht20) - 1)
1739 /* last rate uses sgi */
1740 *sgi = true;
1741 else
1742 *sgi = false;
1743
1744 *mcs = i;
1745 return true;
1746 }
1747 }
1748 return false;
1749 }
1750
is_rate_ht40(s32 rate,u8 * mcs,bool * sgi)1751 static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
1752 {
1753 static const s32 ht40[] = { 13500, 27000, 40500, 54000,
1754 81000, 108000, 121500, 135000,
1755 150000
1756 };
1757 u8 i;
1758
1759 for (i = 0; i < ARRAY_SIZE(ht40); i++) {
1760 if (rate == ht40[i]) {
1761 if (i == ARRAY_SIZE(ht40) - 1)
1762 /* last rate uses sgi */
1763 *sgi = true;
1764 else
1765 *sgi = false;
1766
1767 *mcs = i;
1768 return true;
1769 }
1770 }
1771
1772 return false;
1773 }
1774
ath6kl_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)1775 static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,
1776 const u8 *mac, struct station_info *sinfo)
1777 {
1778 struct ath6kl *ar = ath6kl_priv(dev);
1779 struct ath6kl_vif *vif = netdev_priv(dev);
1780 long left;
1781 bool sgi;
1782 s32 rate;
1783 int ret;
1784 u8 mcs;
1785
1786 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0)
1787 return -ENOENT;
1788
1789 if (down_interruptible(&ar->sem))
1790 return -EBUSY;
1791
1792 set_bit(STATS_UPDATE_PEND, &vif->flags);
1793
1794 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx);
1795
1796 if (ret != 0) {
1797 up(&ar->sem);
1798 return -EIO;
1799 }
1800
1801 left = wait_event_interruptible_timeout(ar->event_wq,
1802 !test_bit(STATS_UPDATE_PEND,
1803 &vif->flags),
1804 WMI_TIMEOUT);
1805
1806 up(&ar->sem);
1807
1808 if (left == 0)
1809 return -ETIMEDOUT;
1810 else if (left < 0)
1811 return left;
1812
1813 if (vif->target_stats.rx_byte) {
1814 sinfo->rx_bytes = vif->target_stats.rx_byte;
1815 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES64);
1816 sinfo->rx_packets = vif->target_stats.rx_pkt;
1817 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS);
1818 }
1819
1820 if (vif->target_stats.tx_byte) {
1821 sinfo->tx_bytes = vif->target_stats.tx_byte;
1822 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES64);
1823 sinfo->tx_packets = vif->target_stats.tx_pkt;
1824 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_PACKETS);
1825 }
1826
1827 sinfo->signal = vif->target_stats.cs_rssi;
1828 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
1829
1830 rate = vif->target_stats.tx_ucast_rate;
1831
1832 if (is_rate_legacy(rate)) {
1833 sinfo->txrate.legacy = rate / 100;
1834 } else if (is_rate_ht20(rate, &mcs, &sgi)) {
1835 if (sgi) {
1836 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1837 sinfo->txrate.mcs = mcs - 1;
1838 } else {
1839 sinfo->txrate.mcs = mcs;
1840 }
1841
1842 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1843 sinfo->txrate.bw = RATE_INFO_BW_20;
1844 } else if (is_rate_ht40(rate, &mcs, &sgi)) {
1845 if (sgi) {
1846 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1847 sinfo->txrate.mcs = mcs - 1;
1848 } else {
1849 sinfo->txrate.mcs = mcs;
1850 }
1851
1852 sinfo->txrate.bw = RATE_INFO_BW_40;
1853 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1854 } else {
1855 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1856 "invalid rate from stats: %d\n", rate);
1857 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE);
1858 return 0;
1859 }
1860
1861 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
1862
1863 if (test_bit(CONNECTED, &vif->flags) &&
1864 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) &&
1865 vif->nw_type == INFRA_NETWORK) {
1866 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
1867 sinfo->bss_param.flags = 0;
1868 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period;
1869 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int;
1870 }
1871
1872 return 0;
1873 }
1874
ath6kl_set_pmksa(struct wiphy * wiphy,struct net_device * netdev,struct cfg80211_pmksa * pmksa)1875 static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1876 struct cfg80211_pmksa *pmksa)
1877 {
1878 struct ath6kl *ar = ath6kl_priv(netdev);
1879 struct ath6kl_vif *vif = netdev_priv(netdev);
1880
1881 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1882 pmksa->pmkid, true);
1883 }
1884
ath6kl_del_pmksa(struct wiphy * wiphy,struct net_device * netdev,struct cfg80211_pmksa * pmksa)1885 static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1886 struct cfg80211_pmksa *pmksa)
1887 {
1888 struct ath6kl *ar = ath6kl_priv(netdev);
1889 struct ath6kl_vif *vif = netdev_priv(netdev);
1890
1891 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1892 pmksa->pmkid, false);
1893 }
1894
ath6kl_flush_pmksa(struct wiphy * wiphy,struct net_device * netdev)1895 static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
1896 {
1897 struct ath6kl *ar = ath6kl_priv(netdev);
1898 struct ath6kl_vif *vif = netdev_priv(netdev);
1899
1900 if (test_bit(CONNECTED, &vif->flags))
1901 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx,
1902 vif->bssid, NULL, false);
1903 return 0;
1904 }
1905
ath6kl_wow_usr(struct ath6kl * ar,struct ath6kl_vif * vif,struct cfg80211_wowlan * wow,u32 * filter)1906 static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif,
1907 struct cfg80211_wowlan *wow, u32 *filter)
1908 {
1909 int ret, pos;
1910 u8 mask[WOW_PATTERN_SIZE];
1911 u16 i;
1912
1913 /* Configure the patterns that we received from the user. */
1914 for (i = 0; i < wow->n_patterns; i++) {
1915 /*
1916 * Convert given nl80211 specific mask value to equivalent
1917 * driver specific mask value and send it to the chip along
1918 * with patterns. For example, If the mask value defined in
1919 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010),
1920 * then equivalent driver specific mask value is
1921 * "0xFF 0x00 0xFF 0x00".
1922 */
1923 memset(&mask, 0, sizeof(mask));
1924 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) {
1925 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8)))
1926 mask[pos] = 0xFF;
1927 }
1928 /*
1929 * Note: Pattern's offset is not passed as part of wowlan
1930 * parameter from CFG layer. So it's always passed as ZERO
1931 * to the firmware. It means, given WOW patterns are always
1932 * matched from the first byte of received pkt in the firmware.
1933 */
1934 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1935 vif->fw_vif_idx, WOW_LIST_ID,
1936 wow->patterns[i].pattern_len,
1937 0 /* pattern offset */,
1938 wow->patterns[i].pattern, mask);
1939 if (ret)
1940 return ret;
1941 }
1942
1943 if (wow->disconnect)
1944 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC;
1945
1946 if (wow->magic_pkt)
1947 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET;
1948
1949 if (wow->gtk_rekey_failure)
1950 *filter |= WOW_FILTER_OPTION_GTK_ERROR;
1951
1952 if (wow->eap_identity_req)
1953 *filter |= WOW_FILTER_OPTION_EAP_REQ;
1954
1955 if (wow->four_way_handshake)
1956 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS;
1957
1958 return 0;
1959 }
1960
ath6kl_wow_ap(struct ath6kl * ar,struct ath6kl_vif * vif)1961 static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif)
1962 {
1963 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00,
1964 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1965 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1966 0x00, 0x08 };
1967 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00,
1968 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1969 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1970 0x00, 0x7f };
1971 u8 unicst_offset = 0;
1972 static const u8 arp_pattern[] = { 0x08, 0x06 };
1973 static const u8 arp_mask[] = { 0xff, 0xff };
1974 u8 arp_offset = 20;
1975 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
1976 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
1977 u8 discvr_offset = 38;
1978 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff,
1979 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1980 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00,
1981 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1982 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1983 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ };
1984 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff,
1985 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1986 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
1987 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1988 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1989 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ };
1990 u8 dhcp_offset = 0;
1991 int ret;
1992
1993 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */
1994 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1995 vif->fw_vif_idx, WOW_LIST_ID,
1996 sizeof(unicst_pattern), unicst_offset,
1997 unicst_pattern, unicst_mask);
1998 if (ret) {
1999 ath6kl_err("failed to add WOW unicast IP pattern\n");
2000 return ret;
2001 }
2002
2003 /* Setup all ARP pkt pattern */
2004 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2005 vif->fw_vif_idx, WOW_LIST_ID,
2006 sizeof(arp_pattern), arp_offset,
2007 arp_pattern, arp_mask);
2008 if (ret) {
2009 ath6kl_err("failed to add WOW ARP pattern\n");
2010 return ret;
2011 }
2012
2013 /*
2014 * Setup multicast pattern for mDNS 224.0.0.251,
2015 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
2016 */
2017 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2018 vif->fw_vif_idx, WOW_LIST_ID,
2019 sizeof(discvr_pattern), discvr_offset,
2020 discvr_pattern, discvr_mask);
2021 if (ret) {
2022 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
2023 return ret;
2024 }
2025
2026 /* Setup all DHCP broadcast pkt pattern */
2027 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2028 vif->fw_vif_idx, WOW_LIST_ID,
2029 sizeof(dhcp_pattern), dhcp_offset,
2030 dhcp_pattern, dhcp_mask);
2031 if (ret) {
2032 ath6kl_err("failed to add WOW DHCP broadcast pattern\n");
2033 return ret;
2034 }
2035
2036 return 0;
2037 }
2038
ath6kl_wow_sta(struct ath6kl * ar,struct ath6kl_vif * vif)2039 static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif)
2040 {
2041 struct net_device *ndev = vif->ndev;
2042 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
2043 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
2044 u8 discvr_offset = 38;
2045 u8 mac_mask[ETH_ALEN];
2046 int ret;
2047
2048 /* Setup unicast pkt pattern */
2049 eth_broadcast_addr(mac_mask);
2050 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2051 vif->fw_vif_idx, WOW_LIST_ID,
2052 ETH_ALEN, 0, ndev->dev_addr,
2053 mac_mask);
2054 if (ret) {
2055 ath6kl_err("failed to add WOW unicast pattern\n");
2056 return ret;
2057 }
2058
2059 /*
2060 * Setup multicast pattern for mDNS 224.0.0.251,
2061 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
2062 */
2063 if ((ndev->flags & IFF_ALLMULTI) ||
2064 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) {
2065 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2066 vif->fw_vif_idx, WOW_LIST_ID,
2067 sizeof(discvr_pattern), discvr_offset,
2068 discvr_pattern, discvr_mask);
2069 if (ret) {
2070 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
2071 return ret;
2072 }
2073 }
2074
2075 return 0;
2076 }
2077
is_hsleep_mode_procsed(struct ath6kl_vif * vif)2078 static int is_hsleep_mode_procsed(struct ath6kl_vif *vif)
2079 {
2080 return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2081 }
2082
is_ctrl_ep_empty(struct ath6kl * ar)2083 static bool is_ctrl_ep_empty(struct ath6kl *ar)
2084 {
2085 return !ar->tx_pending[ar->ctrl_ep];
2086 }
2087
ath6kl_cfg80211_host_sleep(struct ath6kl * ar,struct ath6kl_vif * vif)2088 static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif)
2089 {
2090 int ret, left;
2091
2092 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2093
2094 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2095 ATH6KL_HOST_MODE_ASLEEP);
2096 if (ret)
2097 return ret;
2098
2099 left = wait_event_interruptible_timeout(ar->event_wq,
2100 is_hsleep_mode_procsed(vif),
2101 WMI_TIMEOUT);
2102 if (left == 0) {
2103 ath6kl_warn("timeout, didn't get host sleep cmd processed event\n");
2104 ret = -ETIMEDOUT;
2105 } else if (left < 0) {
2106 ath6kl_warn("error while waiting for host sleep cmd processed event %d\n",
2107 left);
2108 ret = left;
2109 }
2110
2111 if (ar->tx_pending[ar->ctrl_ep]) {
2112 left = wait_event_interruptible_timeout(ar->event_wq,
2113 is_ctrl_ep_empty(ar),
2114 WMI_TIMEOUT);
2115 if (left == 0) {
2116 ath6kl_warn("clear wmi ctrl data timeout\n");
2117 ret = -ETIMEDOUT;
2118 } else if (left < 0) {
2119 ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
2120 ret = left;
2121 }
2122 }
2123
2124 return ret;
2125 }
2126
ath6kl_wow_suspend_vif(struct ath6kl_vif * vif,struct cfg80211_wowlan * wow,u32 * filter)2127 static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif,
2128 struct cfg80211_wowlan *wow, u32 *filter)
2129 {
2130 struct ath6kl *ar = vif->ar;
2131 struct in_device *in_dev;
2132 struct in_ifaddr *ifa;
2133 int ret;
2134 u16 i, bmiss_time;
2135 __be32 ips[MAX_IP_ADDRS];
2136 u8 index = 0;
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 /* Setup own IP addr for ARP agent. */
2194 in_dev = __in_dev_get_rtnl(vif->ndev);
2195 if (!in_dev)
2196 return 0;
2197
2198 ifa = rtnl_dereference(in_dev->ifa_list);
2199 memset(&ips, 0, sizeof(ips));
2200
2201 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */
2202 while (index < MAX_IP_ADDRS && ifa) {
2203 ips[index] = ifa->ifa_local;
2204 ifa = rtnl_dereference(ifa->ifa_next);
2205 index++;
2206 }
2207
2208 if (ifa) {
2209 ath6kl_err("total IP addr count is exceeding fw limit\n");
2210 return -EINVAL;
2211 }
2212
2213 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]);
2214 if (ret) {
2215 ath6kl_err("fail to setup ip for arp agent\n");
2216 return ret;
2217 }
2218
2219 return ret;
2220 }
2221
ath6kl_wow_suspend(struct ath6kl * ar,struct cfg80211_wowlan * wow)2222 static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
2223 {
2224 struct ath6kl_vif *first_vif, *vif;
2225 int ret = 0;
2226 u32 filter = 0;
2227 bool connected = false;
2228
2229 /* enter / leave wow suspend on first vif always */
2230 first_vif = ath6kl_vif_first(ar);
2231 if (WARN_ON(!first_vif) ||
2232 !ath6kl_cfg80211_ready(first_vif))
2233 return -EIO;
2234
2235 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST))
2236 return -EINVAL;
2237
2238 /* install filters for each connected vif */
2239 spin_lock_bh(&ar->list_lock);
2240 list_for_each_entry(vif, &ar->vif_list, list) {
2241 if (!test_bit(CONNECTED, &vif->flags) ||
2242 !ath6kl_cfg80211_ready(vif))
2243 continue;
2244 connected = true;
2245
2246 ret = ath6kl_wow_suspend_vif(vif, wow, &filter);
2247 if (ret)
2248 break;
2249 }
2250 spin_unlock_bh(&ar->list_lock);
2251
2252 if (!connected)
2253 return -ENOTCONN;
2254 else if (ret)
2255 return ret;
2256
2257 ar->state = ATH6KL_STATE_SUSPENDING;
2258
2259 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx,
2260 ATH6KL_WOW_MODE_ENABLE,
2261 filter,
2262 WOW_HOST_REQ_DELAY);
2263 if (ret)
2264 return ret;
2265
2266 return ath6kl_cfg80211_host_sleep(ar, first_vif);
2267 }
2268
ath6kl_wow_resume_vif(struct ath6kl_vif * vif)2269 static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif)
2270 {
2271 struct ath6kl *ar = vif->ar;
2272 int ret;
2273
2274 if (vif->nw_type != AP_NETWORK) {
2275 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2276 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
2277 if (ret)
2278 return ret;
2279
2280 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
2281 vif->listen_intvl_t, 0);
2282 if (ret)
2283 return ret;
2284
2285 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
2286 vif->bmiss_time_t, 0);
2287 if (ret)
2288 return ret;
2289 }
2290
2291 if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) &&
2292 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
2293 ar->fw_capabilities)) {
2294 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
2295 vif->fw_vif_idx, true);
2296 if (ret)
2297 return ret;
2298 }
2299
2300 netif_wake_queue(vif->ndev);
2301
2302 return 0;
2303 }
2304
ath6kl_wow_resume(struct ath6kl * ar)2305 static int ath6kl_wow_resume(struct ath6kl *ar)
2306 {
2307 struct ath6kl_vif *vif;
2308 int ret;
2309
2310 vif = ath6kl_vif_first(ar);
2311 if (WARN_ON(!vif) ||
2312 !ath6kl_cfg80211_ready(vif))
2313 return -EIO;
2314
2315 ar->state = ATH6KL_STATE_RESUMING;
2316
2317 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2318 ATH6KL_HOST_MODE_AWAKE);
2319 if (ret) {
2320 ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n",
2321 ret);
2322 goto cleanup;
2323 }
2324
2325 spin_lock_bh(&ar->list_lock);
2326 list_for_each_entry(vif, &ar->vif_list, list) {
2327 if (!test_bit(CONNECTED, &vif->flags) ||
2328 !ath6kl_cfg80211_ready(vif))
2329 continue;
2330 ret = ath6kl_wow_resume_vif(vif);
2331 if (ret)
2332 break;
2333 }
2334 spin_unlock_bh(&ar->list_lock);
2335
2336 if (ret)
2337 goto cleanup;
2338
2339 ar->state = ATH6KL_STATE_ON;
2340 return 0;
2341
2342 cleanup:
2343 ar->state = ATH6KL_STATE_WOW;
2344 return ret;
2345 }
2346
ath6kl_cfg80211_deepsleep_suspend(struct ath6kl * ar)2347 static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar)
2348 {
2349 struct ath6kl_vif *vif;
2350 int ret;
2351
2352 vif = ath6kl_vif_first(ar);
2353 if (!vif)
2354 return -EIO;
2355
2356 if (!test_bit(WMI_READY, &ar->flag)) {
2357 ath6kl_err("deepsleep failed as wmi is not ready\n");
2358 return -EIO;
2359 }
2360
2361 ath6kl_cfg80211_stop_all(ar);
2362
2363 /* Save the current power mode before enabling power save */
2364 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
2365
2366 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
2367 if (ret)
2368 return ret;
2369
2370 /* Disable WOW mode */
2371 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
2372 ATH6KL_WOW_MODE_DISABLE,
2373 0, 0);
2374 if (ret)
2375 return ret;
2376
2377 /* Flush all non control pkts in TX path */
2378 ath6kl_tx_data_cleanup(ar);
2379
2380 ret = ath6kl_cfg80211_host_sleep(ar, vif);
2381 if (ret)
2382 return ret;
2383
2384 return 0;
2385 }
2386
ath6kl_cfg80211_deepsleep_resume(struct ath6kl * ar)2387 static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar)
2388 {
2389 struct ath6kl_vif *vif;
2390 int ret;
2391
2392 vif = ath6kl_vif_first(ar);
2393
2394 if (!vif)
2395 return -EIO;
2396
2397 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
2398 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
2399 ar->wmi->saved_pwr_mode);
2400 if (ret)
2401 return ret;
2402 }
2403
2404 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2405 ATH6KL_HOST_MODE_AWAKE);
2406 if (ret)
2407 return ret;
2408
2409 ar->state = ATH6KL_STATE_ON;
2410
2411 /* Reset scan parameter to default values */
2412 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2413 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
2414 if (ret)
2415 return ret;
2416
2417 return 0;
2418 }
2419
ath6kl_cfg80211_suspend(struct ath6kl * ar,enum ath6kl_cfg_suspend_mode mode,struct cfg80211_wowlan * wow)2420 int ath6kl_cfg80211_suspend(struct ath6kl *ar,
2421 enum ath6kl_cfg_suspend_mode mode,
2422 struct cfg80211_wowlan *wow)
2423 {
2424 struct ath6kl_vif *vif;
2425 enum ath6kl_state prev_state;
2426 int ret;
2427
2428 switch (mode) {
2429 case ATH6KL_CFG_SUSPEND_WOW:
2430
2431 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n");
2432
2433 /* Flush all non control pkts in TX path */
2434 ath6kl_tx_data_cleanup(ar);
2435
2436 prev_state = ar->state;
2437
2438 ret = ath6kl_wow_suspend(ar, wow);
2439 if (ret) {
2440 ar->state = prev_state;
2441 return ret;
2442 }
2443
2444 ar->state = ATH6KL_STATE_WOW;
2445 break;
2446
2447 case ATH6KL_CFG_SUSPEND_DEEPSLEEP:
2448
2449 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n");
2450
2451 ret = ath6kl_cfg80211_deepsleep_suspend(ar);
2452 if (ret) {
2453 ath6kl_err("deepsleep suspend failed: %d\n", ret);
2454 return ret;
2455 }
2456
2457 ar->state = ATH6KL_STATE_DEEPSLEEP;
2458
2459 break;
2460
2461 case ATH6KL_CFG_SUSPEND_CUTPOWER:
2462
2463 ath6kl_cfg80211_stop_all(ar);
2464
2465 if (ar->state == ATH6KL_STATE_OFF) {
2466 ath6kl_dbg(ATH6KL_DBG_SUSPEND,
2467 "suspend hw off, no action for cutpower\n");
2468 break;
2469 }
2470
2471 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n");
2472
2473 ret = ath6kl_init_hw_stop(ar);
2474 if (ret) {
2475 ath6kl_warn("failed to stop hw during suspend: %d\n",
2476 ret);
2477 }
2478
2479 ar->state = ATH6KL_STATE_CUTPOWER;
2480
2481 break;
2482
2483 default:
2484 break;
2485 }
2486
2487 list_for_each_entry(vif, &ar->vif_list, list)
2488 ath6kl_cfg80211_scan_complete_event(vif, true);
2489
2490 return 0;
2491 }
2492 EXPORT_SYMBOL(ath6kl_cfg80211_suspend);
2493
ath6kl_cfg80211_resume(struct ath6kl * ar)2494 int ath6kl_cfg80211_resume(struct ath6kl *ar)
2495 {
2496 int ret;
2497
2498 switch (ar->state) {
2499 case ATH6KL_STATE_WOW:
2500 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n");
2501
2502 ret = ath6kl_wow_resume(ar);
2503 if (ret) {
2504 ath6kl_warn("wow mode resume failed: %d\n", ret);
2505 return ret;
2506 }
2507
2508 break;
2509
2510 case ATH6KL_STATE_DEEPSLEEP:
2511 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n");
2512
2513 ret = ath6kl_cfg80211_deepsleep_resume(ar);
2514 if (ret) {
2515 ath6kl_warn("deep sleep resume failed: %d\n", ret);
2516 return ret;
2517 }
2518 break;
2519
2520 case ATH6KL_STATE_CUTPOWER:
2521 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n");
2522
2523 ret = ath6kl_init_hw_start(ar);
2524 if (ret) {
2525 ath6kl_warn("Failed to boot hw in resume: %d\n", ret);
2526 return ret;
2527 }
2528 break;
2529
2530 default:
2531 break;
2532 }
2533
2534 return 0;
2535 }
2536 EXPORT_SYMBOL(ath6kl_cfg80211_resume);
2537
2538 #ifdef CONFIG_PM
2539
2540 /* hif layer decides what suspend mode to use */
__ath6kl_cfg80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wow)2541 static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy,
2542 struct cfg80211_wowlan *wow)
2543 {
2544 struct ath6kl *ar = wiphy_priv(wiphy);
2545
2546 ath6kl_recovery_suspend(ar);
2547
2548 return ath6kl_hif_suspend(ar, wow);
2549 }
2550
__ath6kl_cfg80211_resume(struct wiphy * wiphy)2551 static int __ath6kl_cfg80211_resume(struct wiphy *wiphy)
2552 {
2553 struct ath6kl *ar = wiphy_priv(wiphy);
2554 int err;
2555
2556 err = ath6kl_hif_resume(ar);
2557 if (err)
2558 return err;
2559
2560 ath6kl_recovery_resume(ar);
2561
2562 return 0;
2563 }
2564
2565 /*
2566 * FIXME: WOW suspend mode is selected if the host sdio controller supports
2567 * both sdio irq wake up and keep power. The target pulls sdio data line to
2568 * wake up the host when WOW pattern matches. This causes sdio irq handler
2569 * is being called in the host side which internally hits ath6kl's RX path.
2570 *
2571 * Since sdio interrupt is not disabled, RX path executes even before
2572 * the host executes the actual resume operation from PM module.
2573 *
2574 * In the current scenario, WOW resume should happen before start processing
2575 * any data from the target. So It's required to perform WOW resume in RX path.
2576 * Ideally we should perform WOW resume only in the actual platform
2577 * resume path. This area needs bit rework to avoid WOW resume in RX path.
2578 *
2579 * ath6kl_check_wow_status() is called from ath6kl_rx().
2580 */
ath6kl_check_wow_status(struct ath6kl * ar)2581 void ath6kl_check_wow_status(struct ath6kl *ar)
2582 {
2583 if (ar->state == ATH6KL_STATE_SUSPENDING)
2584 return;
2585
2586 if (ar->state == ATH6KL_STATE_WOW)
2587 ath6kl_cfg80211_resume(ar);
2588 }
2589
2590 #else
2591
ath6kl_check_wow_status(struct ath6kl * ar)2592 void ath6kl_check_wow_status(struct ath6kl *ar)
2593 {
2594 }
2595 #endif
2596
ath6kl_set_htcap(struct ath6kl_vif * vif,enum nl80211_band band,bool ht_enable)2597 static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum nl80211_band band,
2598 bool ht_enable)
2599 {
2600 struct ath6kl_htcap *htcap = &vif->htcap[band];
2601
2602 if (htcap->ht_enable == ht_enable)
2603 return 0;
2604
2605 if (ht_enable) {
2606 /* Set default ht capabilities */
2607 htcap->ht_enable = true;
2608 htcap->cap_info = (band == NL80211_BAND_2GHZ) ?
2609 ath6kl_g_htcap : ath6kl_a_htcap;
2610 htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K;
2611 } else /* Disable ht */
2612 memset(htcap, 0, sizeof(*htcap));
2613
2614 return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx,
2615 band, htcap);
2616 }
2617
ath6kl_restore_htcap(struct ath6kl_vif * vif)2618 static int ath6kl_restore_htcap(struct ath6kl_vif *vif)
2619 {
2620 struct wiphy *wiphy = vif->ar->wiphy;
2621 int band, ret = 0;
2622
2623 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2624 if (!wiphy->bands[band])
2625 continue;
2626
2627 ret = ath6kl_set_htcap(vif, band,
2628 wiphy->bands[band]->ht_cap.ht_supported);
2629 if (ret)
2630 return ret;
2631 }
2632
2633 return ret;
2634 }
2635
ath6kl_is_p2p_ie(const u8 * pos)2636 static bool ath6kl_is_p2p_ie(const u8 *pos)
2637 {
2638 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
2639 pos[2] == 0x50 && pos[3] == 0x6f &&
2640 pos[4] == 0x9a && pos[5] == 0x09;
2641 }
2642
ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif * vif,const u8 * ies,size_t ies_len)2643 static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif,
2644 const u8 *ies, size_t ies_len)
2645 {
2646 struct ath6kl *ar = vif->ar;
2647 const u8 *pos;
2648 u8 *buf = NULL;
2649 size_t len = 0;
2650 int ret;
2651
2652 /*
2653 * Filter out P2P IE(s) since they will be included depending on
2654 * the Probe Request frame in ath6kl_send_go_probe_resp().
2655 */
2656
2657 if (ies && ies_len) {
2658 buf = kmalloc(ies_len, GFP_KERNEL);
2659 if (buf == NULL)
2660 return -ENOMEM;
2661 pos = ies;
2662 while (pos + 1 < ies + ies_len) {
2663 if (pos + 2 + pos[1] > ies + ies_len)
2664 break;
2665 if (!ath6kl_is_p2p_ie(pos)) {
2666 memcpy(buf + len, pos, 2 + pos[1]);
2667 len += 2 + pos[1];
2668 }
2669 pos += 2 + pos[1];
2670 }
2671 }
2672
2673 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2674 WMI_FRAME_PROBE_RESP, buf, len);
2675 kfree(buf);
2676 return ret;
2677 }
2678
ath6kl_set_ies(struct ath6kl_vif * vif,struct cfg80211_beacon_data * info)2679 static int ath6kl_set_ies(struct ath6kl_vif *vif,
2680 struct cfg80211_beacon_data *info)
2681 {
2682 struct ath6kl *ar = vif->ar;
2683 int res;
2684
2685 /* this also clears IE in fw if it's not set */
2686 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2687 WMI_FRAME_BEACON,
2688 info->beacon_ies,
2689 info->beacon_ies_len);
2690 if (res)
2691 return res;
2692
2693 /* this also clears IE in fw if it's not set */
2694 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies,
2695 info->proberesp_ies_len);
2696 if (res)
2697 return res;
2698
2699 /* this also clears IE in fw if it's not set */
2700 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2701 WMI_FRAME_ASSOC_RESP,
2702 info->assocresp_ies,
2703 info->assocresp_ies_len);
2704 if (res)
2705 return res;
2706
2707 return 0;
2708 }
2709
ath6kl_get_rsn_capab(struct cfg80211_beacon_data * beacon,u8 * rsn_capab)2710 static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon,
2711 u8 *rsn_capab)
2712 {
2713 const u8 *rsn_ie;
2714 size_t rsn_ie_len;
2715 u16 cnt;
2716
2717 if (!beacon->tail)
2718 return -EINVAL;
2719
2720 rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len);
2721 if (!rsn_ie)
2722 return -EINVAL;
2723
2724 rsn_ie_len = *(rsn_ie + 1);
2725 /* skip element id and length */
2726 rsn_ie += 2;
2727
2728 /* skip version */
2729 if (rsn_ie_len < 2)
2730 return -EINVAL;
2731 rsn_ie += 2;
2732 rsn_ie_len -= 2;
2733
2734 /* skip group cipher suite */
2735 if (rsn_ie_len < 4)
2736 return 0;
2737 rsn_ie += 4;
2738 rsn_ie_len -= 4;
2739
2740 /* skip pairwise cipher suite */
2741 if (rsn_ie_len < 2)
2742 return 0;
2743 cnt = get_unaligned_le16(rsn_ie);
2744 rsn_ie += (2 + cnt * 4);
2745 rsn_ie_len -= (2 + cnt * 4);
2746
2747 /* skip akm suite */
2748 if (rsn_ie_len < 2)
2749 return 0;
2750 cnt = get_unaligned_le16(rsn_ie);
2751 rsn_ie += (2 + cnt * 4);
2752 rsn_ie_len -= (2 + cnt * 4);
2753
2754 if (rsn_ie_len < 2)
2755 return 0;
2756
2757 memcpy(rsn_capab, rsn_ie, 2);
2758
2759 return 0;
2760 }
2761
ath6kl_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * info)2762 static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
2763 struct cfg80211_ap_settings *info)
2764 {
2765 struct ath6kl *ar = ath6kl_priv(dev);
2766 struct ath6kl_vif *vif = netdev_priv(dev);
2767 struct ieee80211_mgmt *mgmt;
2768 bool hidden = false;
2769 u8 *ies;
2770 struct wmi_connect_cmd p;
2771 int res;
2772 int i, ret;
2773 u16 rsn_capab = 0;
2774 int inactivity_timeout = 0;
2775
2776 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__);
2777
2778 if (!ath6kl_cfg80211_ready(vif))
2779 return -EIO;
2780
2781 if (vif->next_mode != AP_NETWORK)
2782 return -EOPNOTSUPP;
2783
2784 res = ath6kl_set_ies(vif, &info->beacon);
2785
2786 ar->ap_mode_bkey.valid = false;
2787
2788 ret = ath6kl_wmi_ap_set_beacon_intvl_cmd(ar->wmi, vif->fw_vif_idx,
2789 info->beacon_interval);
2790
2791 if (ret)
2792 ath6kl_warn("Failed to set beacon interval: %d\n", ret);
2793
2794 ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx,
2795 info->dtim_period);
2796
2797 /* ignore error, just print a warning and continue normally */
2798 if (ret)
2799 ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret);
2800
2801 if (info->beacon.head == NULL)
2802 return -EINVAL;
2803 mgmt = (struct ieee80211_mgmt *) info->beacon.head;
2804 ies = mgmt->u.beacon.variable;
2805 if (ies > info->beacon.head + info->beacon.head_len)
2806 return -EINVAL;
2807
2808 if (info->ssid == NULL)
2809 return -EINVAL;
2810 memcpy(vif->ssid, info->ssid, info->ssid_len);
2811 vif->ssid_len = info->ssid_len;
2812 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE)
2813 hidden = true;
2814
2815 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden);
2816 if (res)
2817 return res;
2818
2819 ret = ath6kl_set_auth_type(vif, info->auth_type);
2820 if (ret)
2821 return ret;
2822
2823 memset(&p, 0, sizeof(p));
2824
2825 for (i = 0; i < info->crypto.n_akm_suites; i++) {
2826 switch (info->crypto.akm_suites[i]) {
2827 case WLAN_AKM_SUITE_8021X:
2828 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2829 p.auth_mode |= WPA_AUTH;
2830 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2831 p.auth_mode |= WPA2_AUTH;
2832 break;
2833 case WLAN_AKM_SUITE_PSK:
2834 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2835 p.auth_mode |= WPA_PSK_AUTH;
2836 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2837 p.auth_mode |= WPA2_PSK_AUTH;
2838 break;
2839 }
2840 }
2841 if (p.auth_mode == 0)
2842 p.auth_mode = NONE_AUTH;
2843 vif->auth_mode = p.auth_mode;
2844
2845 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) {
2846 switch (info->crypto.ciphers_pairwise[i]) {
2847 case WLAN_CIPHER_SUITE_WEP40:
2848 case WLAN_CIPHER_SUITE_WEP104:
2849 p.prwise_crypto_type |= WEP_CRYPT;
2850 break;
2851 case WLAN_CIPHER_SUITE_TKIP:
2852 p.prwise_crypto_type |= TKIP_CRYPT;
2853 break;
2854 case WLAN_CIPHER_SUITE_CCMP:
2855 p.prwise_crypto_type |= AES_CRYPT;
2856 break;
2857 case WLAN_CIPHER_SUITE_SMS4:
2858 p.prwise_crypto_type |= WAPI_CRYPT;
2859 break;
2860 }
2861 }
2862 if (p.prwise_crypto_type == 0) {
2863 p.prwise_crypto_type = NONE_CRYPT;
2864 ath6kl_set_cipher(vif, 0, true);
2865 } else if (info->crypto.n_ciphers_pairwise == 1) {
2866 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true);
2867 }
2868
2869 switch (info->crypto.cipher_group) {
2870 case WLAN_CIPHER_SUITE_WEP40:
2871 case WLAN_CIPHER_SUITE_WEP104:
2872 p.grp_crypto_type = WEP_CRYPT;
2873 break;
2874 case WLAN_CIPHER_SUITE_TKIP:
2875 p.grp_crypto_type = TKIP_CRYPT;
2876 break;
2877 case WLAN_CIPHER_SUITE_CCMP:
2878 p.grp_crypto_type = AES_CRYPT;
2879 break;
2880 case WLAN_CIPHER_SUITE_SMS4:
2881 p.grp_crypto_type = WAPI_CRYPT;
2882 break;
2883 default:
2884 p.grp_crypto_type = NONE_CRYPT;
2885 break;
2886 }
2887 ath6kl_set_cipher(vif, info->crypto.cipher_group, false);
2888
2889 p.nw_type = AP_NETWORK;
2890 vif->nw_type = vif->next_mode;
2891
2892 p.ssid_len = vif->ssid_len;
2893 memcpy(p.ssid, vif->ssid, vif->ssid_len);
2894 p.dot11_auth_mode = vif->dot11_auth_mode;
2895 p.ch = cpu_to_le16(info->chandef.chan->center_freq);
2896
2897 /* Enable uAPSD support by default */
2898 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true);
2899 if (res < 0)
2900 return res;
2901
2902 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) {
2903 p.nw_subtype = SUBTYPE_P2PGO;
2904 } else {
2905 /*
2906 * Due to firmware limitation, it is not possible to
2907 * do P2P mgmt operations in AP mode
2908 */
2909 p.nw_subtype = SUBTYPE_NONE;
2910 }
2911
2912 if (info->inactivity_timeout) {
2913 inactivity_timeout = info->inactivity_timeout;
2914
2915 if (test_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS,
2916 ar->fw_capabilities))
2917 inactivity_timeout = DIV_ROUND_UP(inactivity_timeout,
2918 60);
2919
2920 res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx,
2921 inactivity_timeout);
2922 if (res < 0)
2923 return res;
2924 }
2925
2926 if (ath6kl_set_htcap(vif, info->chandef.chan->band,
2927 cfg80211_get_chandef_type(&info->chandef)
2928 != NL80211_CHAN_NO_HT))
2929 return -EIO;
2930
2931 /*
2932 * Get the PTKSA replay counter in the RSN IE. Supplicant
2933 * will use the RSN IE in M3 message and firmware has to
2934 * advertise the same in beacon/probe response. Send
2935 * the complete RSN IE capability field to firmware
2936 */
2937 if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) &&
2938 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
2939 ar->fw_capabilities)) {
2940 res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx,
2941 WLAN_EID_RSN, WMI_RSN_IE_CAPB,
2942 (const u8 *) &rsn_capab,
2943 sizeof(rsn_capab));
2944 vif->rsn_capab = rsn_capab;
2945 if (res < 0)
2946 return res;
2947 }
2948
2949 memcpy(&vif->profile, &p, sizeof(p));
2950 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p);
2951 if (res < 0)
2952 return res;
2953
2954 return 0;
2955 }
2956
ath6kl_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_update * params)2957 static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev,
2958 struct cfg80211_ap_update *params)
2959 {
2960 struct ath6kl_vif *vif = netdev_priv(dev);
2961
2962 if (!ath6kl_cfg80211_ready(vif))
2963 return -EIO;
2964
2965 if (vif->next_mode != AP_NETWORK)
2966 return -EOPNOTSUPP;
2967
2968 return ath6kl_set_ies(vif, ¶ms->beacon);
2969 }
2970
ath6kl_stop_ap(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id)2971 static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev,
2972 unsigned int link_id)
2973 {
2974 struct ath6kl *ar = ath6kl_priv(dev);
2975 struct ath6kl_vif *vif = netdev_priv(dev);
2976
2977 if (vif->nw_type != AP_NETWORK)
2978 return -EOPNOTSUPP;
2979 if (!test_bit(CONNECTED, &vif->flags))
2980 return -ENOTCONN;
2981
2982 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
2983 clear_bit(CONNECTED, &vif->flags);
2984 netif_carrier_off(vif->ndev);
2985
2986 /* Restore ht setting in firmware */
2987 return ath6kl_restore_htcap(vif);
2988 }
2989
2990 static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2991
ath6kl_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)2992 static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev,
2993 struct station_del_parameters *params)
2994 {
2995 struct ath6kl *ar = ath6kl_priv(dev);
2996 struct ath6kl_vif *vif = netdev_priv(dev);
2997 const u8 *addr = params->mac ? params->mac : bcast_addr;
2998
2999 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH,
3000 addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
3001 }
3002
ath6kl_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)3003 static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev,
3004 const u8 *mac,
3005 struct station_parameters *params)
3006 {
3007 struct ath6kl *ar = ath6kl_priv(dev);
3008 struct ath6kl_vif *vif = netdev_priv(dev);
3009 int err;
3010
3011 if (vif->nw_type != AP_NETWORK)
3012 return -EOPNOTSUPP;
3013
3014 err = cfg80211_check_station_change(wiphy, params,
3015 CFG80211_STA_AP_MLME_CLIENT);
3016 if (err)
3017 return err;
3018
3019 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
3020 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
3021 WMI_AP_MLME_AUTHORIZE, mac, 0);
3022 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
3023 WMI_AP_MLME_UNAUTHORIZE, mac, 0);
3024 }
3025
ath6kl_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct ieee80211_channel * chan,unsigned int duration,u64 * cookie)3026 static int ath6kl_remain_on_channel(struct wiphy *wiphy,
3027 struct wireless_dev *wdev,
3028 struct ieee80211_channel *chan,
3029 unsigned int duration,
3030 u64 *cookie)
3031 {
3032 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3033 struct ath6kl *ar = ath6kl_priv(vif->ndev);
3034 u32 id;
3035
3036 /* TODO: if already pending or ongoing remain-on-channel,
3037 * return -EBUSY */
3038 id = ++vif->last_roc_id;
3039 if (id == 0) {
3040 /* Do not use 0 as the cookie value */
3041 id = ++vif->last_roc_id;
3042 }
3043 *cookie = id;
3044
3045 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx,
3046 chan->center_freq, duration);
3047 }
3048
ath6kl_cancel_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)3049 static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy,
3050 struct wireless_dev *wdev,
3051 u64 cookie)
3052 {
3053 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3054 struct ath6kl *ar = ath6kl_priv(vif->ndev);
3055
3056 if (cookie != vif->last_roc_id)
3057 return -ENOENT;
3058 vif->last_cancel_roc_id = cookie;
3059
3060 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx);
3061 }
3062
ath6kl_send_go_probe_resp(struct ath6kl_vif * vif,const u8 * buf,size_t len,unsigned int freq)3063 static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif,
3064 const u8 *buf, size_t len,
3065 unsigned int freq)
3066 {
3067 struct ath6kl *ar = vif->ar;
3068 const u8 *pos;
3069 u8 *p2p;
3070 int p2p_len;
3071 int ret;
3072 const struct ieee80211_mgmt *mgmt;
3073
3074 mgmt = (const struct ieee80211_mgmt *) buf;
3075
3076 /* Include P2P IE(s) from the frame generated in user space. */
3077
3078 p2p = kmalloc(len, GFP_KERNEL);
3079 if (p2p == NULL)
3080 return -ENOMEM;
3081 p2p_len = 0;
3082
3083 pos = mgmt->u.probe_resp.variable;
3084 while (pos + 1 < buf + len) {
3085 if (pos + 2 + pos[1] > buf + len)
3086 break;
3087 if (ath6kl_is_p2p_ie(pos)) {
3088 memcpy(p2p + p2p_len, pos, 2 + pos[1]);
3089 p2p_len += 2 + pos[1];
3090 }
3091 pos += 2 + pos[1];
3092 }
3093
3094 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq,
3095 mgmt->da, p2p, p2p_len);
3096 kfree(p2p);
3097 return ret;
3098 }
3099
ath6kl_mgmt_powersave_ap(struct ath6kl_vif * vif,u32 id,u32 freq,u32 wait,const u8 * buf,size_t len,bool * more_data,bool no_cck)3100 static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif,
3101 u32 id,
3102 u32 freq,
3103 u32 wait,
3104 const u8 *buf,
3105 size_t len,
3106 bool *more_data,
3107 bool no_cck)
3108 {
3109 struct ieee80211_mgmt *mgmt;
3110 struct ath6kl_sta *conn;
3111 bool is_psq_empty = false;
3112 struct ath6kl_mgmt_buff *mgmt_buf;
3113 size_t mgmt_buf_size;
3114 struct ath6kl *ar = vif->ar;
3115
3116 mgmt = (struct ieee80211_mgmt *) buf;
3117 if (is_multicast_ether_addr(mgmt->da))
3118 return false;
3119
3120 conn = ath6kl_find_sta(vif, mgmt->da);
3121 if (!conn)
3122 return false;
3123
3124 if (conn->sta_flags & STA_PS_SLEEP) {
3125 if (!(conn->sta_flags & STA_PS_POLLED)) {
3126 /* Queue the frames if the STA is sleeping */
3127 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff);
3128 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL);
3129 if (!mgmt_buf)
3130 return false;
3131
3132 INIT_LIST_HEAD(&mgmt_buf->list);
3133 mgmt_buf->id = id;
3134 mgmt_buf->freq = freq;
3135 mgmt_buf->wait = wait;
3136 mgmt_buf->len = len;
3137 mgmt_buf->no_cck = no_cck;
3138 memcpy(mgmt_buf->buf, buf, len);
3139 spin_lock_bh(&conn->psq_lock);
3140 is_psq_empty = skb_queue_empty(&conn->psq) &&
3141 (conn->mgmt_psq_len == 0);
3142 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq);
3143 conn->mgmt_psq_len++;
3144 spin_unlock_bh(&conn->psq_lock);
3145
3146 /*
3147 * If this is the first pkt getting queued
3148 * for this STA, update the PVB for this
3149 * STA.
3150 */
3151 if (is_psq_empty)
3152 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
3153 conn->aid, 1);
3154 return true;
3155 }
3156
3157 /*
3158 * This tx is because of a PsPoll.
3159 * Determine if MoreData bit has to be set.
3160 */
3161 spin_lock_bh(&conn->psq_lock);
3162 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0))
3163 *more_data = true;
3164 spin_unlock_bh(&conn->psq_lock);
3165 }
3166
3167 return false;
3168 }
3169
3170 /* Check if SSID length is greater than DIRECT- */
ath6kl_is_p2p_go_ssid(const u8 * buf,size_t len)3171 static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len)
3172 {
3173 const struct ieee80211_mgmt *mgmt;
3174 mgmt = (const struct ieee80211_mgmt *) buf;
3175
3176 /* variable[1] contains the SSID tag length */
3177 if (buf + len >= &mgmt->u.probe_resp.variable[1] &&
3178 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) {
3179 return true;
3180 }
3181
3182 return false;
3183 }
3184
ath6kl_mgmt_tx(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_mgmt_tx_params * params,u64 * cookie)3185 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3186 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
3187 {
3188 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3189 struct ath6kl *ar = ath6kl_priv(vif->ndev);
3190 struct ieee80211_channel *chan = params->chan;
3191 const u8 *buf = params->buf;
3192 size_t len = params->len;
3193 unsigned int wait = params->wait;
3194 bool no_cck = params->no_cck;
3195 u32 id, freq;
3196 const struct ieee80211_mgmt *mgmt;
3197 bool more_data, queued;
3198
3199 /* default to the current channel, but use the one specified as argument
3200 * if any
3201 */
3202 freq = vif->ch_hint;
3203 if (chan)
3204 freq = chan->center_freq;
3205
3206 /* never send freq zero to the firmware */
3207 if (WARN_ON(freq == 0))
3208 return -EINVAL;
3209
3210 mgmt = (const struct ieee80211_mgmt *) buf;
3211 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) &&
3212 ieee80211_is_probe_resp(mgmt->frame_control) &&
3213 ath6kl_is_p2p_go_ssid(buf, len)) {
3214 /*
3215 * Send Probe Response frame in GO mode using a separate WMI
3216 * command to allow the target to fill in the generic IEs.
3217 */
3218 *cookie = 0; /* TX status not supported */
3219 return ath6kl_send_go_probe_resp(vif, buf, len, freq);
3220 }
3221
3222 id = vif->send_action_id++;
3223 if (id == 0) {
3224 /*
3225 * 0 is a reserved value in the WMI command and shall not be
3226 * used for the command.
3227 */
3228 id = vif->send_action_id++;
3229 }
3230
3231 *cookie = id;
3232
3233 /* AP mode Power saving processing */
3234 if (vif->nw_type == AP_NETWORK) {
3235 queued = ath6kl_mgmt_powersave_ap(vif, id, freq, wait, buf, len,
3236 &more_data, no_cck);
3237 if (queued)
3238 return 0;
3239 }
3240
3241 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, freq,
3242 wait, buf, len, no_cck);
3243 }
3244
ath6kl_get_antenna(struct wiphy * wiphy,u32 * tx_ant,u32 * rx_ant)3245 static int ath6kl_get_antenna(struct wiphy *wiphy,
3246 u32 *tx_ant, u32 *rx_ant)
3247 {
3248 struct ath6kl *ar = wiphy_priv(wiphy);
3249 *tx_ant = ar->hw.tx_ant;
3250 *rx_ant = ar->hw.rx_ant;
3251 return 0;
3252 }
3253
ath6kl_update_mgmt_frame_registrations(struct wiphy * wiphy,struct wireless_dev * wdev,struct mgmt_frame_regs * upd)3254 static void ath6kl_update_mgmt_frame_registrations(struct wiphy *wiphy,
3255 struct wireless_dev *wdev,
3256 struct mgmt_frame_regs *upd)
3257 {
3258 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3259
3260 /*
3261 * FIXME: send WMI_PROBE_REQ_REPORT_CMD here instead of hardcoding
3262 * the reporting in the target all the time, this callback
3263 * *is* allowed to sleep after all.
3264 */
3265 vif->probe_req_report =
3266 upd->interface_stypes & BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3267 }
3268
ath6kl_cfg80211_sscan_start(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_sched_scan_request * request)3269 static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy,
3270 struct net_device *dev,
3271 struct cfg80211_sched_scan_request *request)
3272 {
3273 struct ath6kl *ar = ath6kl_priv(dev);
3274 struct ath6kl_vif *vif = netdev_priv(dev);
3275 u16 interval;
3276 int ret, rssi_thold;
3277 int n_match_sets = request->n_match_sets;
3278
3279 /*
3280 * If there's a matchset w/o an SSID, then assume it's just for
3281 * the RSSI (nothing else is currently supported) and ignore it.
3282 * The device only supports a global RSSI filter that we set below.
3283 */
3284 if (n_match_sets == 1 && !request->match_sets[0].ssid.ssid_len)
3285 n_match_sets = 0;
3286
3287 if (ar->state != ATH6KL_STATE_ON)
3288 return -EIO;
3289
3290 if (vif->sme_state != SME_DISCONNECTED)
3291 return -EBUSY;
3292
3293 ath6kl_cfg80211_scan_complete_event(vif, true);
3294
3295 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
3296 request->n_ssids,
3297 request->match_sets,
3298 n_match_sets);
3299 if (ret < 0)
3300 return ret;
3301
3302 if (!n_match_sets) {
3303 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
3304 ALL_BSS_FILTER, 0);
3305 if (ret < 0)
3306 return ret;
3307 } else {
3308 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
3309 MATCHED_SSID_FILTER, 0);
3310 if (ret < 0)
3311 return ret;
3312 }
3313
3314 if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD,
3315 ar->fw_capabilities)) {
3316 if (request->min_rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF)
3317 rssi_thold = 0;
3318 else if (request->min_rssi_thold < -127)
3319 rssi_thold = -127;
3320 else
3321 rssi_thold = request->min_rssi_thold;
3322
3323 ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx,
3324 rssi_thold);
3325 if (ret) {
3326 ath6kl_err("failed to set RSSI threshold for scan\n");
3327 return ret;
3328 }
3329 }
3330
3331 /* fw uses seconds, also make sure that it's >0 */
3332 interval = max_t(u16, 1, request->scan_plans[0].interval);
3333
3334 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
3335 interval, interval,
3336 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
3337
3338 /* this also clears IE in fw if it's not set */
3339 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
3340 WMI_FRAME_PROBE_REQ,
3341 request->ie, request->ie_len);
3342 if (ret) {
3343 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n",
3344 ret);
3345 return ret;
3346 }
3347
3348 ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true);
3349 if (ret)
3350 return ret;
3351
3352 set_bit(SCHED_SCANNING, &vif->flags);
3353
3354 return 0;
3355 }
3356
ath6kl_cfg80211_sscan_stop(struct wiphy * wiphy,struct net_device * dev,u64 reqid)3357 static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy,
3358 struct net_device *dev, u64 reqid)
3359 {
3360 struct ath6kl_vif *vif = netdev_priv(dev);
3361 bool stopped;
3362
3363 stopped = __ath6kl_cfg80211_sscan_stop(vif);
3364
3365 if (!stopped)
3366 return -EIO;
3367
3368 return 0;
3369 }
3370
ath6kl_cfg80211_set_bitrate(struct wiphy * wiphy,struct net_device * dev,unsigned int link_id,const u8 * addr,const struct cfg80211_bitrate_mask * mask)3371 static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy,
3372 struct net_device *dev,
3373 unsigned int link_id,
3374 const u8 *addr,
3375 const struct cfg80211_bitrate_mask *mask)
3376 {
3377 struct ath6kl *ar = ath6kl_priv(dev);
3378 struct ath6kl_vif *vif = netdev_priv(dev);
3379
3380 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx,
3381 mask);
3382 }
3383
ath6kl_cfg80211_set_txe_config(struct wiphy * wiphy,struct net_device * dev,u32 rate,u32 pkts,u32 intvl)3384 static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy,
3385 struct net_device *dev,
3386 u32 rate, u32 pkts, u32 intvl)
3387 {
3388 struct ath6kl *ar = ath6kl_priv(dev);
3389 struct ath6kl_vif *vif = netdev_priv(dev);
3390
3391 if (vif->nw_type != INFRA_NETWORK ||
3392 !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities))
3393 return -EOPNOTSUPP;
3394
3395 if (vif->sme_state != SME_CONNECTED)
3396 return -ENOTCONN;
3397
3398 /* save this since the firmware won't report the interval */
3399 vif->txe_intvl = intvl;
3400
3401 return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx,
3402 rate, pkts, intvl);
3403 }
3404
3405 static const struct ieee80211_txrx_stypes
3406 ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = {
3407 [NL80211_IFTYPE_STATION] = {
3408 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3409 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3410 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3411 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3412 },
3413 [NL80211_IFTYPE_AP] = {
3414 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3415 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3416 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3417 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3418 },
3419 [NL80211_IFTYPE_P2P_CLIENT] = {
3420 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3421 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3422 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3423 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3424 },
3425 [NL80211_IFTYPE_P2P_GO] = {
3426 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3427 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3428 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3429 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3430 },
3431 };
3432
3433 static struct cfg80211_ops ath6kl_cfg80211_ops = {
3434 .add_virtual_intf = ath6kl_cfg80211_add_iface,
3435 .del_virtual_intf = ath6kl_cfg80211_del_iface,
3436 .change_virtual_intf = ath6kl_cfg80211_change_iface,
3437 .scan = ath6kl_cfg80211_scan,
3438 .connect = ath6kl_cfg80211_connect,
3439 .disconnect = ath6kl_cfg80211_disconnect,
3440 .add_key = ath6kl_cfg80211_add_key,
3441 .get_key = ath6kl_cfg80211_get_key,
3442 .del_key = ath6kl_cfg80211_del_key,
3443 .set_default_key = ath6kl_cfg80211_set_default_key,
3444 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,
3445 .set_tx_power = ath6kl_cfg80211_set_txpower,
3446 .get_tx_power = ath6kl_cfg80211_get_txpower,
3447 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,
3448 .join_ibss = ath6kl_cfg80211_join_ibss,
3449 .leave_ibss = ath6kl_cfg80211_leave_ibss,
3450 .get_station = ath6kl_get_station,
3451 .set_pmksa = ath6kl_set_pmksa,
3452 .del_pmksa = ath6kl_del_pmksa,
3453 .flush_pmksa = ath6kl_flush_pmksa,
3454 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd)
3455 #ifdef CONFIG_PM
3456 .suspend = __ath6kl_cfg80211_suspend,
3457 .resume = __ath6kl_cfg80211_resume,
3458 #endif
3459 .start_ap = ath6kl_start_ap,
3460 .change_beacon = ath6kl_change_beacon,
3461 .stop_ap = ath6kl_stop_ap,
3462 .del_station = ath6kl_del_station,
3463 .change_station = ath6kl_change_station,
3464 .remain_on_channel = ath6kl_remain_on_channel,
3465 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel,
3466 .mgmt_tx = ath6kl_mgmt_tx,
3467 .update_mgmt_frame_registrations =
3468 ath6kl_update_mgmt_frame_registrations,
3469 .get_antenna = ath6kl_get_antenna,
3470 .sched_scan_start = ath6kl_cfg80211_sscan_start,
3471 .sched_scan_stop = ath6kl_cfg80211_sscan_stop,
3472 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate,
3473 .set_cqm_txe_config = ath6kl_cfg80211_set_txe_config,
3474 };
3475
ath6kl_cfg80211_stop(struct ath6kl_vif * vif)3476 void ath6kl_cfg80211_stop(struct ath6kl_vif *vif)
3477 {
3478 ath6kl_cfg80211_sscan_disable(vif);
3479
3480 switch (vif->sme_state) {
3481 case SME_DISCONNECTED:
3482 break;
3483 case SME_CONNECTING:
3484 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0,
3485 NULL, 0,
3486 WLAN_STATUS_UNSPECIFIED_FAILURE,
3487 GFP_KERNEL);
3488 break;
3489 case SME_CONNECTED:
3490 cfg80211_disconnected(vif->ndev, 0, NULL, 0, true, GFP_KERNEL);
3491 break;
3492 }
3493
3494 if (vif->ar->state != ATH6KL_STATE_RECOVERY &&
3495 (test_bit(CONNECTED, &vif->flags) ||
3496 test_bit(CONNECT_PEND, &vif->flags)))
3497 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
3498
3499 vif->sme_state = SME_DISCONNECTED;
3500 clear_bit(CONNECTED, &vif->flags);
3501 clear_bit(CONNECT_PEND, &vif->flags);
3502
3503 /* Stop netdev queues, needed during recovery */
3504 netif_stop_queue(vif->ndev);
3505 netif_carrier_off(vif->ndev);
3506
3507 /* disable scanning */
3508 if (vif->ar->state != ATH6KL_STATE_RECOVERY &&
3509 ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF,
3510 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0)
3511 ath6kl_warn("failed to disable scan during stop\n");
3512
3513 ath6kl_cfg80211_scan_complete_event(vif, true);
3514 }
3515
ath6kl_cfg80211_stop_all(struct ath6kl * ar)3516 void ath6kl_cfg80211_stop_all(struct ath6kl *ar)
3517 {
3518 struct ath6kl_vif *vif;
3519
3520 vif = ath6kl_vif_first(ar);
3521 if (!vif && ar->state != ATH6KL_STATE_RECOVERY) {
3522 /* save the current power mode before enabling power save */
3523 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
3524
3525 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0)
3526 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n");
3527 return;
3528 }
3529
3530 /*
3531 * FIXME: we should take ar->list_lock to protect changes in the
3532 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop()
3533 * sleeps.
3534 */
3535 list_for_each_entry(vif, &ar->vif_list, list)
3536 ath6kl_cfg80211_stop(vif);
3537 }
3538
ath6kl_cfg80211_reg_notify(struct wiphy * wiphy,struct regulatory_request * request)3539 static void ath6kl_cfg80211_reg_notify(struct wiphy *wiphy,
3540 struct regulatory_request *request)
3541 {
3542 struct ath6kl *ar = wiphy_priv(wiphy);
3543 u32 rates[NUM_NL80211_BANDS];
3544 int ret, i;
3545
3546 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
3547 "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n",
3548 request->alpha2[0], request->alpha2[1],
3549 request->intersect ? " intersect" : "",
3550 request->processed ? " processed" : "",
3551 request->initiator, request->user_reg_hint_type);
3552
3553 if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE)
3554 return;
3555
3556 ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2);
3557 if (ret) {
3558 ath6kl_err("failed to set regdomain: %d\n", ret);
3559 return;
3560 }
3561
3562 /*
3563 * Firmware will apply the regdomain change only after a scan is
3564 * issued and it will send a WMI_REGDOMAIN_EVENTID when it has been
3565 * changed.
3566 */
3567
3568 for (i = 0; i < NUM_NL80211_BANDS; i++)
3569 if (wiphy->bands[i])
3570 rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
3571
3572
3573 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false,
3574 false, 0, ATH6KL_FG_SCAN_INTERVAL,
3575 0, NULL, false, rates);
3576 if (ret) {
3577 ath6kl_err("failed to start scan for a regdomain change: %d\n",
3578 ret);
3579 return;
3580 }
3581 }
3582
ath6kl_cfg80211_vif_init(struct ath6kl_vif * vif)3583 static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif)
3584 {
3585 vif->aggr_cntxt = aggr_init(vif);
3586 if (!vif->aggr_cntxt) {
3587 ath6kl_err("failed to initialize aggr\n");
3588 return -ENOMEM;
3589 }
3590
3591 timer_setup(&vif->disconnect_timer, disconnect_timer_handler, 0);
3592 timer_setup(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer, 0);
3593
3594 set_bit(WMM_ENABLED, &vif->flags);
3595 spin_lock_init(&vif->if_lock);
3596
3597 INIT_LIST_HEAD(&vif->mc_filter);
3598
3599 return 0;
3600 }
3601
ath6kl_cfg80211_vif_stop(struct ath6kl_vif * vif,bool wmi_ready)3602 void ath6kl_cfg80211_vif_stop(struct ath6kl_vif *vif, bool wmi_ready)
3603 {
3604 static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3605 bool discon_issued;
3606
3607 netif_stop_queue(vif->ndev);
3608
3609 clear_bit(WLAN_ENABLED, &vif->flags);
3610
3611 if (wmi_ready) {
3612 discon_issued = test_bit(CONNECTED, &vif->flags) ||
3613 test_bit(CONNECT_PEND, &vif->flags);
3614 ath6kl_disconnect(vif);
3615 timer_delete(&vif->disconnect_timer);
3616
3617 if (discon_issued)
3618 ath6kl_disconnect_event(vif, DISCONNECT_CMD,
3619 (vif->nw_type & AP_NETWORK) ?
3620 bcast_mac : vif->bssid,
3621 0, NULL, 0);
3622 }
3623
3624 if (vif->scan_req) {
3625 struct cfg80211_scan_info info = {
3626 .aborted = true,
3627 };
3628
3629 cfg80211_scan_done(vif->scan_req, &info);
3630 vif->scan_req = NULL;
3631 }
3632
3633 /* need to clean up enhanced bmiss detection fw state */
3634 ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
3635 }
3636
ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif * vif)3637 void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif)
3638 {
3639 struct ath6kl *ar = vif->ar;
3640 struct ath6kl_mc_filter *mc_filter, *tmp;
3641
3642 aggr_module_destroy(vif->aggr_cntxt);
3643
3644 ar->avail_idx_map |= BIT(vif->fw_vif_idx);
3645
3646 if (vif->nw_type == ADHOC_NETWORK)
3647 ar->ibss_if_active = false;
3648
3649 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
3650 list_del(&mc_filter->list);
3651 kfree(mc_filter);
3652 }
3653
3654 cfg80211_unregister_netdevice(vif->ndev);
3655
3656 ar->num_vif--;
3657 }
3658
3659 static const char ath6kl_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
3660 /* Common stats names used by many drivers. */
3661 "tx_pkts_nic", "tx_bytes_nic", "rx_pkts_nic", "rx_bytes_nic",
3662
3663 /* TX stats. */
3664 "d_tx_ucast_pkts", "d_tx_bcast_pkts",
3665 "d_tx_ucast_bytes", "d_tx_bcast_bytes",
3666 "d_tx_rts_ok", "d_tx_error", "d_tx_fail",
3667 "d_tx_retry", "d_tx_multi_retry", "d_tx_rts_fail",
3668 "d_tx_tkip_counter_measures",
3669
3670 /* RX Stats. */
3671 "d_rx_ucast_pkts", "d_rx_ucast_rate", "d_rx_bcast_pkts",
3672 "d_rx_ucast_bytes", "d_rx_bcast_bytes", "d_rx_frag_pkt",
3673 "d_rx_error", "d_rx_crc_err", "d_rx_keycache_miss",
3674 "d_rx_decrypt_crc_err", "d_rx_duplicate_frames",
3675 "d_rx_mic_err", "d_rx_tkip_format_err", "d_rx_ccmp_format_err",
3676 "d_rx_ccmp_replay_err",
3677
3678 /* Misc stats. */
3679 "d_beacon_miss", "d_num_connects", "d_num_disconnects",
3680 "d_beacon_avg_rssi", "d_arp_received", "d_arp_matched",
3681 "d_arp_replied"
3682 };
3683
3684 #define ATH6KL_STATS_LEN ARRAY_SIZE(ath6kl_gstrings_sta_stats)
3685
ath6kl_get_sset_count(struct net_device * dev,int sset)3686 static int ath6kl_get_sset_count(struct net_device *dev, int sset)
3687 {
3688 int rv = 0;
3689
3690 if (sset == ETH_SS_STATS)
3691 rv += ATH6KL_STATS_LEN;
3692
3693 if (rv == 0)
3694 return -EOPNOTSUPP;
3695 return rv;
3696 }
3697
ath6kl_get_stats(struct net_device * dev,struct ethtool_stats * stats,u64 * data)3698 static void ath6kl_get_stats(struct net_device *dev,
3699 struct ethtool_stats *stats,
3700 u64 *data)
3701 {
3702 struct ath6kl_vif *vif = netdev_priv(dev);
3703 struct ath6kl *ar = vif->ar;
3704 int i = 0;
3705 struct target_stats *tgt_stats;
3706
3707 memset(data, 0, sizeof(u64) * ATH6KL_STATS_LEN);
3708
3709 ath6kl_read_tgt_stats(ar, vif);
3710
3711 tgt_stats = &vif->target_stats;
3712
3713 data[i++] = tgt_stats->tx_ucast_pkt + tgt_stats->tx_bcast_pkt;
3714 data[i++] = tgt_stats->tx_ucast_byte + tgt_stats->tx_bcast_byte;
3715 data[i++] = tgt_stats->rx_ucast_pkt + tgt_stats->rx_bcast_pkt;
3716 data[i++] = tgt_stats->rx_ucast_byte + tgt_stats->rx_bcast_byte;
3717
3718 data[i++] = tgt_stats->tx_ucast_pkt;
3719 data[i++] = tgt_stats->tx_bcast_pkt;
3720 data[i++] = tgt_stats->tx_ucast_byte;
3721 data[i++] = tgt_stats->tx_bcast_byte;
3722 data[i++] = tgt_stats->tx_rts_success_cnt;
3723 data[i++] = tgt_stats->tx_err;
3724 data[i++] = tgt_stats->tx_fail_cnt;
3725 data[i++] = tgt_stats->tx_retry_cnt;
3726 data[i++] = tgt_stats->tx_mult_retry_cnt;
3727 data[i++] = tgt_stats->tx_rts_fail_cnt;
3728 data[i++] = tgt_stats->tkip_cnter_measures_invoked;
3729
3730 data[i++] = tgt_stats->rx_ucast_pkt;
3731 data[i++] = tgt_stats->rx_ucast_rate;
3732 data[i++] = tgt_stats->rx_bcast_pkt;
3733 data[i++] = tgt_stats->rx_ucast_byte;
3734 data[i++] = tgt_stats->rx_bcast_byte;
3735 data[i++] = tgt_stats->rx_frgment_pkt;
3736 data[i++] = tgt_stats->rx_err;
3737 data[i++] = tgt_stats->rx_crc_err;
3738 data[i++] = tgt_stats->rx_key_cache_miss;
3739 data[i++] = tgt_stats->rx_decrypt_err;
3740 data[i++] = tgt_stats->rx_dupl_frame;
3741 data[i++] = tgt_stats->tkip_local_mic_fail;
3742 data[i++] = tgt_stats->tkip_fmt_err;
3743 data[i++] = tgt_stats->ccmp_fmt_err;
3744 data[i++] = tgt_stats->ccmp_replays;
3745
3746 data[i++] = tgt_stats->cs_bmiss_cnt;
3747 data[i++] = tgt_stats->cs_connect_cnt;
3748 data[i++] = tgt_stats->cs_discon_cnt;
3749 data[i++] = tgt_stats->cs_ave_beacon_rssi;
3750 data[i++] = tgt_stats->arp_received;
3751 data[i++] = tgt_stats->arp_matched;
3752 data[i++] = tgt_stats->arp_replied;
3753
3754 if (i != ATH6KL_STATS_LEN) {
3755 WARN_ON_ONCE(1);
3756 ath6kl_err("ethtool stats error, i: %d STATS_LEN: %d\n",
3757 i, (int)ATH6KL_STATS_LEN);
3758 }
3759 }
3760
3761 /* These stats are per NIC, not really per vdev, so we just ignore dev. */
ath6kl_get_strings(struct net_device * dev,u32 sset,u8 * data)3762 static void ath6kl_get_strings(struct net_device *dev, u32 sset, u8 *data)
3763 {
3764 int sz_sta_stats = 0;
3765
3766 if (sset == ETH_SS_STATS) {
3767 sz_sta_stats = sizeof(ath6kl_gstrings_sta_stats);
3768 memcpy(data, ath6kl_gstrings_sta_stats, sz_sta_stats);
3769 }
3770 }
3771
3772 static const struct ethtool_ops ath6kl_ethtool_ops = {
3773 .get_drvinfo = cfg80211_get_drvinfo,
3774 .get_link = ethtool_op_get_link,
3775 .get_strings = ath6kl_get_strings,
3776 .get_ethtool_stats = ath6kl_get_stats,
3777 .get_sset_count = ath6kl_get_sset_count,
3778 };
3779
ath6kl_interface_add(struct ath6kl * ar,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,u8 fw_vif_idx,u8 nw_type)3780 struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name,
3781 unsigned char name_assign_type,
3782 enum nl80211_iftype type,
3783 u8 fw_vif_idx, u8 nw_type)
3784 {
3785 struct net_device *ndev;
3786 struct ath6kl_vif *vif;
3787 u8 addr[ETH_ALEN];
3788
3789 ndev = alloc_netdev(sizeof(*vif), name, name_assign_type, ether_setup);
3790 if (!ndev)
3791 return NULL;
3792
3793 vif = netdev_priv(ndev);
3794 ndev->ieee80211_ptr = &vif->wdev;
3795 vif->wdev.wiphy = ar->wiphy;
3796 vif->ar = ar;
3797 vif->ndev = ndev;
3798 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy));
3799 vif->wdev.netdev = ndev;
3800 vif->wdev.iftype = type;
3801 vif->fw_vif_idx = fw_vif_idx;
3802 vif->nw_type = nw_type;
3803 vif->next_mode = nw_type;
3804 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL;
3805 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME;
3806 vif->bg_scan_period = 0;
3807 vif->htcap[NL80211_BAND_2GHZ].ht_enable = true;
3808 vif->htcap[NL80211_BAND_5GHZ].ht_enable = true;
3809
3810 ether_addr_copy(addr, ar->mac_addr);
3811 if (fw_vif_idx != 0) {
3812 addr[0] = (addr[0] ^ (1 << fw_vif_idx)) | 0x2;
3813 if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR,
3814 ar->fw_capabilities))
3815 addr[4] ^= 0x80;
3816 }
3817 eth_hw_addr_set(ndev, addr);
3818
3819 init_netdev(ndev);
3820
3821 ath6kl_init_control_info(vif);
3822
3823 if (ath6kl_cfg80211_vif_init(vif))
3824 goto err;
3825
3826 netdev_set_default_ethtool_ops(ndev, &ath6kl_ethtool_ops);
3827
3828 if (cfg80211_register_netdevice(ndev))
3829 goto err;
3830
3831 ar->avail_idx_map &= ~BIT(fw_vif_idx);
3832 vif->sme_state = SME_DISCONNECTED;
3833 set_bit(WLAN_ENABLED, &vif->flags);
3834 ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
3835
3836 if (type == NL80211_IFTYPE_ADHOC)
3837 ar->ibss_if_active = true;
3838
3839 spin_lock_bh(&ar->list_lock);
3840 list_add_tail(&vif->list, &ar->vif_list);
3841 spin_unlock_bh(&ar->list_lock);
3842
3843 return &vif->wdev;
3844
3845 err:
3846 aggr_module_destroy(vif->aggr_cntxt);
3847 free_netdev(ndev);
3848 return NULL;
3849 }
3850
3851 #ifdef CONFIG_PM
3852 static const struct wiphy_wowlan_support ath6kl_wowlan_support = {
3853 .flags = WIPHY_WOWLAN_MAGIC_PKT |
3854 WIPHY_WOWLAN_DISCONNECT |
3855 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
3856 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
3857 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
3858 WIPHY_WOWLAN_4WAY_HANDSHAKE,
3859 .n_patterns = WOW_MAX_FILTERS_PER_LIST,
3860 .pattern_min_len = 1,
3861 .pattern_max_len = WOW_PATTERN_SIZE,
3862 };
3863 #endif
3864
ath6kl_cfg80211_init(struct ath6kl * ar)3865 int ath6kl_cfg80211_init(struct ath6kl *ar)
3866 {
3867 struct wiphy *wiphy = ar->wiphy;
3868 bool band_2gig = false, band_5gig = false, ht = false;
3869 int ret;
3870
3871 wiphy->mgmt_stypes = ath6kl_mgmt_stypes;
3872
3873 wiphy->max_remain_on_channel_duration = 5000;
3874
3875 /* set device pointer for wiphy */
3876 set_wiphy_dev(wiphy, ar->dev);
3877
3878 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3879 BIT(NL80211_IFTYPE_ADHOC) |
3880 BIT(NL80211_IFTYPE_AP);
3881 if (ar->p2p) {
3882 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) |
3883 BIT(NL80211_IFTYPE_P2P_CLIENT);
3884 }
3885
3886 if (IS_ENABLED(CONFIG_ATH6KL_REGDOMAIN) &&
3887 test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) {
3888 wiphy->reg_notifier = ath6kl_cfg80211_reg_notify;
3889 ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS;
3890 }
3891
3892 /* max num of ssids that can be probed during scanning */
3893 wiphy->max_scan_ssids = MAX_PROBED_SSIDS;
3894
3895 /* max num of ssids that can be matched after scan */
3896 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST,
3897 ar->fw_capabilities))
3898 wiphy->max_match_sets = MAX_PROBED_SSIDS;
3899
3900 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */
3901 switch (ar->hw.cap) {
3902 case WMI_11AN_CAP:
3903 ht = true;
3904 fallthrough;
3905 case WMI_11A_CAP:
3906 band_5gig = true;
3907 break;
3908 case WMI_11GN_CAP:
3909 ht = true;
3910 fallthrough;
3911 case WMI_11G_CAP:
3912 band_2gig = true;
3913 break;
3914 case WMI_11AGN_CAP:
3915 ht = true;
3916 fallthrough;
3917 case WMI_11AG_CAP:
3918 band_2gig = true;
3919 band_5gig = true;
3920 break;
3921 default:
3922 ath6kl_err("invalid phy capability!\n");
3923 return -EINVAL;
3924 }
3925
3926 /*
3927 * Even if the fw has HT support, advertise HT cap only when
3928 * the firmware has support to override RSN capability, otherwise
3929 * 4-way handshake would fail.
3930 */
3931 if (!(ht &&
3932 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
3933 ar->fw_capabilities))) {
3934 ath6kl_band_2ghz.ht_cap.cap = 0;
3935 ath6kl_band_2ghz.ht_cap.ht_supported = false;
3936 ath6kl_band_5ghz.ht_cap.cap = 0;
3937 ath6kl_band_5ghz.ht_cap.ht_supported = false;
3938
3939 if (ht)
3940 ath6kl_err("Firmware lacks RSN-CAP-OVERRIDE, so HT (802.11n) is disabled.");
3941 }
3942
3943 if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES,
3944 ar->fw_capabilities)) {
3945 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3946 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3947 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff;
3948 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff;
3949 ar->hw.tx_ant = 0x3; /* mask, 2 antenna */
3950 ar->hw.rx_ant = 0x3;
3951 } else {
3952 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3953 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3954 ar->hw.tx_ant = 1;
3955 ar->hw.rx_ant = 1;
3956 }
3957
3958 wiphy->available_antennas_tx = ar->hw.tx_ant;
3959 wiphy->available_antennas_rx = ar->hw.rx_ant;
3960
3961 if (band_2gig)
3962 wiphy->bands[NL80211_BAND_2GHZ] = &ath6kl_band_2ghz;
3963 if (band_5gig)
3964 wiphy->bands[NL80211_BAND_5GHZ] = &ath6kl_band_5ghz;
3965
3966 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3967
3968 wiphy->cipher_suites = cipher_suites;
3969 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
3970
3971 #ifdef CONFIG_PM
3972 wiphy->wowlan = &ath6kl_wowlan_support;
3973 #endif
3974
3975 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS;
3976
3977 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
3978 WIPHY_FLAG_HAVE_AP_SME |
3979 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3980 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
3981
3982 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities))
3983 ar->wiphy->max_sched_scan_reqs = 1;
3984
3985 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT,
3986 ar->fw_capabilities))
3987 ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;
3988
3989 ar->wiphy->probe_resp_offload =
3990 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3991 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3992 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3993
3994 ret = wiphy_register(wiphy);
3995 if (ret < 0) {
3996 ath6kl_err("couldn't register wiphy device\n");
3997 return ret;
3998 }
3999
4000 ar->wiphy_registered = true;
4001
4002 return 0;
4003 }
4004
ath6kl_cfg80211_cleanup(struct ath6kl * ar)4005 void ath6kl_cfg80211_cleanup(struct ath6kl *ar)
4006 {
4007 wiphy_unregister(ar->wiphy);
4008
4009 ar->wiphy_registered = false;
4010 }
4011
ath6kl_cfg80211_create(void)4012 struct ath6kl *ath6kl_cfg80211_create(void)
4013 {
4014 struct ath6kl *ar;
4015 struct wiphy *wiphy;
4016
4017 /* create a new wiphy for use with cfg80211 */
4018 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));
4019
4020 if (!wiphy) {
4021 ath6kl_err("couldn't allocate wiphy device\n");
4022 return NULL;
4023 }
4024
4025 ar = wiphy_priv(wiphy);
4026 ar->wiphy = wiphy;
4027
4028 return ar;
4029 }
4030
4031 /* Note: ar variable must not be accessed after calling this! */
ath6kl_cfg80211_destroy(struct ath6kl * ar)4032 void ath6kl_cfg80211_destroy(struct ath6kl *ar)
4033 {
4034 int i;
4035
4036 for (i = 0; i < AP_MAX_NUM_STA; i++)
4037 kfree(ar->sta_list[i].aggr_conn);
4038
4039 wiphy_free(ar->wiphy);
4040 }
4041
4042