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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
57struct ath6kl_cfg80211_match_probe_ssid {
58 struct cfg80211_ssid ssid;
59 u8 flag;
60};
61
62static 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
87static 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
104static 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
124static 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
133static 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 */
145static 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 del_timer_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
162static 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
175static 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
194static 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
222static 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
265static 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
284static 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
301static 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
308static bool ath6kl_is_rsn_ie(const u8 *pos)
309{
310 return pos[0] == WLAN_EID_RSN;
311}
312
313static 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
321static 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
367static 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
389static 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
424static bool ath6kl_is_tx_pending(struct ath6kl *ar)
425{
426 return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0;
427}
428
429static 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
454static 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
678static struct cfg80211_bss *
679ath6kl_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
735void 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
821static 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
858void 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
916static 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
994static 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
1076void 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
1101out:
1102 cfg80211_scan_done(vif->scan_req, &info);
1103 vif->scan_req = NULL;
1104}
1105
1106void 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, 0);
1123 wiphy_unlock(vif->ar->wiphy);
1124}
1125
1126static 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 del_timer(&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
1251static 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
1281static 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
1316static 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
1367void 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
1379static 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
1406static 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
1442static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy,
1443 struct wireless_dev *wdev,
1444 int *dbm)
1445{
1446 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1447 struct ath6kl_vif *vif;
1448
1449 vif = ath6kl_vif_first(ar);
1450 if (!vif)
1451 return -EIO;
1452
1453 if (!ath6kl_cfg80211_ready(vif))
1454 return -EIO;
1455
1456 if (test_bit(CONNECTED, &vif->flags)) {
1457 ar->tx_pwr = 255;
1458
1459 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) {
1460 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n");
1461 return -EIO;
1462 }
1463
1464 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 255,
1465 5 * HZ);
1466
1467 if (signal_pending(current)) {
1468 ath6kl_err("target did not respond\n");
1469 return -EINTR;
1470 }
1471 }
1472
1473 *dbm = ar->tx_pwr;
1474 return 0;
1475}
1476
1477static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
1478 struct net_device *dev,
1479 bool pmgmt, int timeout)
1480{
1481 struct ath6kl *ar = ath6kl_priv(dev);
1482 struct wmi_power_mode_cmd mode;
1483 struct ath6kl_vif *vif = netdev_priv(dev);
1484
1485 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",
1486 __func__, pmgmt, timeout);
1487
1488 if (!ath6kl_cfg80211_ready(vif))
1489 return -EIO;
1490
1491 if (pmgmt) {
1492 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);
1493 mode.pwr_mode = REC_POWER;
1494 } else {
1495 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);
1496 mode.pwr_mode = MAX_PERF_POWER;
1497 }
1498
1499 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx,
1500 mode.pwr_mode) != 0) {
1501 ath6kl_err("wmi_powermode_cmd failed\n");
1502 return -EIO;
1503 }
1504
1505 return 0;
1506}
1507
1508static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy,
1509 const char *name,
1510 unsigned char name_assign_type,
1511 enum nl80211_iftype type,
1512 struct vif_params *params)
1513{
1514 struct ath6kl *ar = wiphy_priv(wiphy);
1515 struct wireless_dev *wdev;
1516 u8 if_idx, nw_type;
1517
1518 if (ar->num_vif == ar->vif_max) {
1519 ath6kl_err("Reached maximum number of supported vif\n");
1520 return ERR_PTR(-EINVAL);
1521 }
1522
1523 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) {
1524 ath6kl_err("Not a supported interface type\n");
1525 return ERR_PTR(-EINVAL);
1526 }
1527
1528 wdev = ath6kl_interface_add(ar, name, name_assign_type, type, if_idx, nw_type);
1529 if (!wdev)
1530 return ERR_PTR(-ENOMEM);
1531
1532 ar->num_vif++;
1533
1534 return wdev;
1535}
1536
1537static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy,
1538 struct wireless_dev *wdev)
1539{
1540 struct ath6kl *ar = wiphy_priv(wiphy);
1541 struct ath6kl_vif *vif = netdev_priv(wdev->netdev);
1542
1543 spin_lock_bh(&ar->list_lock);
1544 list_del(&vif->list);
1545 spin_unlock_bh(&ar->list_lock);
1546
1547 ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag));
1548
1549 rtnl_lock();
1550 ath6kl_cfg80211_vif_cleanup(vif);
1551 rtnl_unlock();
1552
1553 return 0;
1554}
1555
1556static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
1557 struct net_device *ndev,
1558 enum nl80211_iftype type,
1559 struct vif_params *params)
1560{
1561 struct ath6kl_vif *vif = netdev_priv(ndev);
1562 int i;
1563
1564 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
1565
1566 /*
1567 * Don't bring up p2p on an interface which is not initialized
1568 * for p2p operation where fw does not have capability to switch
1569 * dynamically between non-p2p and p2p type interface.
1570 */
1571 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
1572 vif->ar->fw_capabilities) &&
1573 (type == NL80211_IFTYPE_P2P_CLIENT ||
1574 type == NL80211_IFTYPE_P2P_GO)) {
1575 if (vif->ar->vif_max == 1) {
1576 if (vif->fw_vif_idx != 0)
1577 return -EINVAL;
1578 else
1579 goto set_iface_type;
1580 }
1581
1582 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) {
1583 if (i == vif->fw_vif_idx)
1584 break;
1585 }
1586
1587 if (i == vif->ar->vif_max) {
1588 ath6kl_err("Invalid interface to bring up P2P\n");
1589 return -EINVAL;
1590 }
1591 }
1592
1593 /* need to clean up enhanced bmiss detection fw state */
1594 ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
1595
1596set_iface_type:
1597 switch (type) {
1598 case NL80211_IFTYPE_STATION:
1599 case NL80211_IFTYPE_P2P_CLIENT:
1600 vif->next_mode = INFRA_NETWORK;
1601 break;
1602 case NL80211_IFTYPE_ADHOC:
1603 vif->next_mode = ADHOC_NETWORK;
1604 break;
1605 case NL80211_IFTYPE_AP:
1606 case NL80211_IFTYPE_P2P_GO:
1607 vif->next_mode = AP_NETWORK;
1608 break;
1609 default:
1610 ath6kl_err("invalid interface type %u\n", type);
1611 return -EOPNOTSUPP;
1612 }
1613
1614 vif->wdev.iftype = type;
1615
1616 return 0;
1617}
1618
1619static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,
1620 struct net_device *dev,
1621 struct cfg80211_ibss_params *ibss_param)
1622{
1623 struct ath6kl *ar = ath6kl_priv(dev);
1624 struct ath6kl_vif *vif = netdev_priv(dev);
1625 int status;
1626
1627 if (!ath6kl_cfg80211_ready(vif))
1628 return -EIO;
1629
1630 vif->ssid_len = ibss_param->ssid_len;
1631 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len);
1632
1633 if (ibss_param->chandef.chan)
1634 vif->ch_hint = ibss_param->chandef.chan->center_freq;
1635
1636 if (ibss_param->channel_fixed) {
1637 /*
1638 * TODO: channel_fixed: The channel should be fixed, do not
1639 * search for IBSSs to join on other channels. Target
1640 * firmware does not support this feature, needs to be
1641 * updated.
1642 */
1643 return -EOPNOTSUPP;
1644 }
1645
1646 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
1647 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))
1648 memcpy(vif->req_bssid, ibss_param->bssid,
1649 sizeof(vif->req_bssid));
1650
1651 ath6kl_set_wpa_version(vif, 0);
1652
1653 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM);
1654 if (status)
1655 return status;
1656
1657 if (ibss_param->privacy) {
1658 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true);
1659 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false);
1660 } else {
1661 ath6kl_set_cipher(vif, 0, true);
1662 ath6kl_set_cipher(vif, 0, false);
1663 }
1664
1665 vif->nw_type = vif->next_mode;
1666
1667 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1668 "%s: connect called with authmode %d dot11 auth %d"
1669 " PW crypto %d PW crypto len %d GRP crypto %d"
1670 " GRP crypto len %d channel hint %u\n",
1671 __func__,
1672 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
1673 vif->prwise_crypto_len, vif->grp_crypto,
1674 vif->grp_crypto_len, vif->ch_hint);
1675
1676 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
1677 vif->dot11_auth_mode, vif->auth_mode,
1678 vif->prwise_crypto,
1679 vif->prwise_crypto_len,
1680 vif->grp_crypto, vif->grp_crypto_len,
1681 vif->ssid_len, vif->ssid,
1682 vif->req_bssid, vif->ch_hint,
1683 ar->connect_ctrl_flags, SUBTYPE_NONE);
1684 set_bit(CONNECT_PEND, &vif->flags);
1685
1686 return 0;
1687}
1688
1689static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,
1690 struct net_device *dev)
1691{
1692 struct ath6kl_vif *vif = netdev_priv(dev);
1693
1694 if (!ath6kl_cfg80211_ready(vif))
1695 return -EIO;
1696
1697 ath6kl_disconnect(vif);
1698 memset(vif->ssid, 0, sizeof(vif->ssid));
1699 vif->ssid_len = 0;
1700
1701 return 0;
1702}
1703
1704static const u32 cipher_suites[] = {
1705 WLAN_CIPHER_SUITE_WEP40,
1706 WLAN_CIPHER_SUITE_WEP104,
1707 WLAN_CIPHER_SUITE_TKIP,
1708 WLAN_CIPHER_SUITE_CCMP,
1709 CCKM_KRK_CIPHER_SUITE,
1710 WLAN_CIPHER_SUITE_SMS4,
1711};
1712
1713static bool is_rate_legacy(s32 rate)
1714{
1715 static const s32 legacy[] = { 1000, 2000, 5500, 11000,
1716 6000, 9000, 12000, 18000, 24000,
1717 36000, 48000, 54000
1718 };
1719 u8 i;
1720
1721 for (i = 0; i < ARRAY_SIZE(legacy); i++)
1722 if (rate == legacy[i])
1723 return true;
1724
1725 return false;
1726}
1727
1728static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
1729{
1730 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
1731 52000, 58500, 65000, 72200
1732 };
1733 u8 i;
1734
1735 for (i = 0; i < ARRAY_SIZE(ht20); i++) {
1736 if (rate == ht20[i]) {
1737 if (i == ARRAY_SIZE(ht20) - 1)
1738 /* last rate uses sgi */
1739 *sgi = true;
1740 else
1741 *sgi = false;
1742
1743 *mcs = i;
1744 return true;
1745 }
1746 }
1747 return false;
1748}
1749
1750static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
1751{
1752 static const s32 ht40[] = { 13500, 27000, 40500, 54000,
1753 81000, 108000, 121500, 135000,
1754 150000
1755 };
1756 u8 i;
1757
1758 for (i = 0; i < ARRAY_SIZE(ht40); i++) {
1759 if (rate == ht40[i]) {
1760 if (i == ARRAY_SIZE(ht40) - 1)
1761 /* last rate uses sgi */
1762 *sgi = true;
1763 else
1764 *sgi = false;
1765
1766 *mcs = i;
1767 return true;
1768 }
1769 }
1770
1771 return false;
1772}
1773
1774static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,
1775 const u8 *mac, struct station_info *sinfo)
1776{
1777 struct ath6kl *ar = ath6kl_priv(dev);
1778 struct ath6kl_vif *vif = netdev_priv(dev);
1779 long left;
1780 bool sgi;
1781 s32 rate;
1782 int ret;
1783 u8 mcs;
1784
1785 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0)
1786 return -ENOENT;
1787
1788 if (down_interruptible(&ar->sem))
1789 return -EBUSY;
1790
1791 set_bit(STATS_UPDATE_PEND, &vif->flags);
1792
1793 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx);
1794
1795 if (ret != 0) {
1796 up(&ar->sem);
1797 return -EIO;
1798 }
1799
1800 left = wait_event_interruptible_timeout(ar->event_wq,
1801 !test_bit(STATS_UPDATE_PEND,
1802 &vif->flags),
1803 WMI_TIMEOUT);
1804
1805 up(&ar->sem);
1806
1807 if (left == 0)
1808 return -ETIMEDOUT;
1809 else if (left < 0)
1810 return left;
1811
1812 if (vif->target_stats.rx_byte) {
1813 sinfo->rx_bytes = vif->target_stats.rx_byte;
1814 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_BYTES64);
1815 sinfo->rx_packets = vif->target_stats.rx_pkt;
1816 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_RX_PACKETS);
1817 }
1818
1819 if (vif->target_stats.tx_byte) {
1820 sinfo->tx_bytes = vif->target_stats.tx_byte;
1821 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BYTES64);
1822 sinfo->tx_packets = vif->target_stats.tx_pkt;
1823 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_PACKETS);
1824 }
1825
1826 sinfo->signal = vif->target_stats.cs_rssi;
1827 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL);
1828
1829 rate = vif->target_stats.tx_ucast_rate;
1830
1831 if (is_rate_legacy(rate)) {
1832 sinfo->txrate.legacy = rate / 100;
1833 } else if (is_rate_ht20(rate, &mcs, &sgi)) {
1834 if (sgi) {
1835 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1836 sinfo->txrate.mcs = mcs - 1;
1837 } else {
1838 sinfo->txrate.mcs = mcs;
1839 }
1840
1841 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1842 sinfo->txrate.bw = RATE_INFO_BW_20;
1843 } else if (is_rate_ht40(rate, &mcs, &sgi)) {
1844 if (sgi) {
1845 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1846 sinfo->txrate.mcs = mcs - 1;
1847 } else {
1848 sinfo->txrate.mcs = mcs;
1849 }
1850
1851 sinfo->txrate.bw = RATE_INFO_BW_40;
1852 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1853 } else {
1854 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1855 "invalid rate from stats: %d\n", rate);
1856 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE);
1857 return 0;
1858 }
1859
1860 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
1861
1862 if (test_bit(CONNECTED, &vif->flags) &&
1863 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) &&
1864 vif->nw_type == INFRA_NETWORK) {
1865 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM);
1866 sinfo->bss_param.flags = 0;
1867 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period;
1868 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int;
1869 }
1870
1871 return 0;
1872}
1873
1874static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1875 struct cfg80211_pmksa *pmksa)
1876{
1877 struct ath6kl *ar = ath6kl_priv(netdev);
1878 struct ath6kl_vif *vif = netdev_priv(netdev);
1879
1880 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1881 pmksa->pmkid, true);
1882}
1883
1884static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1885 struct cfg80211_pmksa *pmksa)
1886{
1887 struct ath6kl *ar = ath6kl_priv(netdev);
1888 struct ath6kl_vif *vif = netdev_priv(netdev);
1889
1890 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1891 pmksa->pmkid, false);
1892}
1893
1894static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
1895{
1896 struct ath6kl *ar = ath6kl_priv(netdev);
1897 struct ath6kl_vif *vif = netdev_priv(netdev);
1898
1899 if (test_bit(CONNECTED, &vif->flags))
1900 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx,
1901 vif->bssid, NULL, false);
1902 return 0;
1903}
1904
1905static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif,
1906 struct cfg80211_wowlan *wow, u32 *filter)
1907{
1908 int ret, pos;
1909 u8 mask[WOW_PATTERN_SIZE];
1910 u16 i;
1911
1912 /* Configure the patterns that we received from the user. */
1913 for (i = 0; i < wow->n_patterns; i++) {
1914 /*
1915 * Convert given nl80211 specific mask value to equivalent
1916 * driver specific mask value and send it to the chip along
1917 * with patterns. For example, If the mask value defined in
1918 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010),
1919 * then equivalent driver specific mask value is
1920 * "0xFF 0x00 0xFF 0x00".
1921 */
1922 memset(&mask, 0, sizeof(mask));
1923 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) {
1924 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8)))
1925 mask[pos] = 0xFF;
1926 }
1927 /*
1928 * Note: Pattern's offset is not passed as part of wowlan
1929 * parameter from CFG layer. So it's always passed as ZERO
1930 * to the firmware. It means, given WOW patterns are always
1931 * matched from the first byte of received pkt in the firmware.
1932 */
1933 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1934 vif->fw_vif_idx, WOW_LIST_ID,
1935 wow->patterns[i].pattern_len,
1936 0 /* pattern offset */,
1937 wow->patterns[i].pattern, mask);
1938 if (ret)
1939 return ret;
1940 }
1941
1942 if (wow->disconnect)
1943 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC;
1944
1945 if (wow->magic_pkt)
1946 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET;
1947
1948 if (wow->gtk_rekey_failure)
1949 *filter |= WOW_FILTER_OPTION_GTK_ERROR;
1950
1951 if (wow->eap_identity_req)
1952 *filter |= WOW_FILTER_OPTION_EAP_REQ;
1953
1954 if (wow->four_way_handshake)
1955 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS;
1956
1957 return 0;
1958}
1959
1960static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif)
1961{
1962 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00,
1963 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1964 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1965 0x00, 0x08 };
1966 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00,
1967 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1968 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1969 0x00, 0x7f };
1970 u8 unicst_offset = 0;
1971 static const u8 arp_pattern[] = { 0x08, 0x06 };
1972 static const u8 arp_mask[] = { 0xff, 0xff };
1973 u8 arp_offset = 20;
1974 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
1975 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
1976 u8 discvr_offset = 38;
1977 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff,
1978 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1979 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00,
1980 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1981 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1982 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ };
1983 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff,
1984 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1985 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
1986 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1987 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1988 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ };
1989 u8 dhcp_offset = 0;
1990 int ret;
1991
1992 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */
1993 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1994 vif->fw_vif_idx, WOW_LIST_ID,
1995 sizeof(unicst_pattern), unicst_offset,
1996 unicst_pattern, unicst_mask);
1997 if (ret) {
1998 ath6kl_err("failed to add WOW unicast IP pattern\n");
1999 return ret;
2000 }
2001
2002 /* Setup all ARP pkt pattern */
2003 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2004 vif->fw_vif_idx, WOW_LIST_ID,
2005 sizeof(arp_pattern), arp_offset,
2006 arp_pattern, arp_mask);
2007 if (ret) {
2008 ath6kl_err("failed to add WOW ARP pattern\n");
2009 return ret;
2010 }
2011
2012 /*
2013 * Setup multicast pattern for mDNS 224.0.0.251,
2014 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
2015 */
2016 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2017 vif->fw_vif_idx, WOW_LIST_ID,
2018 sizeof(discvr_pattern), discvr_offset,
2019 discvr_pattern, discvr_mask);
2020 if (ret) {
2021 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
2022 return ret;
2023 }
2024
2025 /* Setup all DHCP broadcast pkt pattern */
2026 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2027 vif->fw_vif_idx, WOW_LIST_ID,
2028 sizeof(dhcp_pattern), dhcp_offset,
2029 dhcp_pattern, dhcp_mask);
2030 if (ret) {
2031 ath6kl_err("failed to add WOW DHCP broadcast pattern\n");
2032 return ret;
2033 }
2034
2035 return 0;
2036}
2037
2038static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif)
2039{
2040 struct net_device *ndev = vif->ndev;
2041 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
2042 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
2043 u8 discvr_offset = 38;
2044 u8 mac_mask[ETH_ALEN];
2045 int ret;
2046
2047 /* Setup unicast pkt pattern */
2048 eth_broadcast_addr(mac_mask);
2049 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2050 vif->fw_vif_idx, WOW_LIST_ID,
2051 ETH_ALEN, 0, ndev->dev_addr,
2052 mac_mask);
2053 if (ret) {
2054 ath6kl_err("failed to add WOW unicast pattern\n");
2055 return ret;
2056 }
2057
2058 /*
2059 * Setup multicast pattern for mDNS 224.0.0.251,
2060 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
2061 */
2062 if ((ndev->flags & IFF_ALLMULTI) ||
2063 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) {
2064 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2065 vif->fw_vif_idx, WOW_LIST_ID,
2066 sizeof(discvr_pattern), discvr_offset,
2067 discvr_pattern, discvr_mask);
2068 if (ret) {
2069 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
2070 return ret;
2071 }
2072 }
2073
2074 return 0;
2075}
2076
2077static int is_hsleep_mode_procsed(struct ath6kl_vif *vif)
2078{
2079 return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2080}
2081
2082static bool is_ctrl_ep_empty(struct ath6kl *ar)
2083{
2084 return !ar->tx_pending[ar->ctrl_ep];
2085}
2086
2087static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif)
2088{
2089 int ret, left;
2090
2091 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2092
2093 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2094 ATH6KL_HOST_MODE_ASLEEP);
2095 if (ret)
2096 return ret;
2097
2098 left = wait_event_interruptible_timeout(ar->event_wq,
2099 is_hsleep_mode_procsed(vif),
2100 WMI_TIMEOUT);
2101 if (left == 0) {
2102 ath6kl_warn("timeout, didn't get host sleep cmd processed event\n");
2103 ret = -ETIMEDOUT;
2104 } else if (left < 0) {
2105 ath6kl_warn("error while waiting for host sleep cmd processed event %d\n",
2106 left);
2107 ret = left;
2108 }
2109
2110 if (ar->tx_pending[ar->ctrl_ep]) {
2111 left = wait_event_interruptible_timeout(ar->event_wq,
2112 is_ctrl_ep_empty(ar),
2113 WMI_TIMEOUT);
2114 if (left == 0) {
2115 ath6kl_warn("clear wmi ctrl data timeout\n");
2116 ret = -ETIMEDOUT;
2117 } else if (left < 0) {
2118 ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
2119 ret = left;
2120 }
2121 }
2122
2123 return ret;
2124}
2125
2126static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif,
2127 struct cfg80211_wowlan *wow, u32 *filter)
2128{
2129 struct ath6kl *ar = vif->ar;
2130 struct in_device *in_dev;
2131 struct in_ifaddr *ifa;
2132 int ret;
2133 u16 i, bmiss_time;
2134 __be32 ips[MAX_IP_ADDRS];
2135 u8 index = 0;
2136
2137 if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) &&
2138 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
2139 ar->fw_capabilities)) {
2140 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
2141 vif->fw_vif_idx, false);
2142 if (ret)
2143 return ret;
2144 }
2145
2146 /* Clear existing WOW patterns */
2147 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++)
2148 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx,
2149 WOW_LIST_ID, i);
2150
2151 /*
2152 * Skip the default WOW pattern configuration
2153 * if the driver receives any WOW patterns from
2154 * the user.
2155 */
2156 if (wow)
2157 ret = ath6kl_wow_usr(ar, vif, wow, filter);
2158 else if (vif->nw_type == AP_NETWORK)
2159 ret = ath6kl_wow_ap(ar, vif);
2160 else
2161 ret = ath6kl_wow_sta(ar, vif);
2162
2163 if (ret)
2164 return ret;
2165
2166 netif_stop_queue(vif->ndev);
2167
2168 if (vif->nw_type != AP_NETWORK) {
2169 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
2170 ATH6KL_MAX_WOW_LISTEN_INTL,
2171 0);
2172 if (ret)
2173 return ret;
2174
2175 /* Set listen interval x 15 times as bmiss time */
2176 bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15;
2177 if (bmiss_time > ATH6KL_MAX_BMISS_TIME)
2178 bmiss_time = ATH6KL_MAX_BMISS_TIME;
2179
2180 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
2181 bmiss_time, 0);
2182 if (ret)
2183 return ret;
2184
2185 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2186 0xFFFF, 0, 0xFFFF, 0, 0, 0,
2187 0, 0, 0, 0);
2188 if (ret)
2189 return ret;
2190 }
2191
2192 /* Setup own IP addr for ARP agent. */
2193 in_dev = __in_dev_get_rtnl(vif->ndev);
2194 if (!in_dev)
2195 return 0;
2196
2197 ifa = rtnl_dereference(in_dev->ifa_list);
2198 memset(&ips, 0, sizeof(ips));
2199
2200 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */
2201 while (index < MAX_IP_ADDRS && ifa) {
2202 ips[index] = ifa->ifa_local;
2203 ifa = rtnl_dereference(ifa->ifa_next);
2204 index++;
2205 }
2206
2207 if (ifa) {
2208 ath6kl_err("total IP addr count is exceeding fw limit\n");
2209 return -EINVAL;
2210 }
2211
2212 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]);
2213 if (ret) {
2214 ath6kl_err("fail to setup ip for arp agent\n");
2215 return ret;
2216 }
2217
2218 return ret;
2219}
2220
2221static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
2222{
2223 struct ath6kl_vif *first_vif, *vif;
2224 int ret = 0;
2225 u32 filter = 0;
2226 bool connected = false;
2227
2228 /* enter / leave wow suspend on first vif always */
2229 first_vif = ath6kl_vif_first(ar);
2230 if (WARN_ON(!first_vif) ||
2231 !ath6kl_cfg80211_ready(first_vif))
2232 return -EIO;
2233
2234 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST))
2235 return -EINVAL;
2236
2237 /* install filters for each connected vif */
2238 spin_lock_bh(&ar->list_lock);
2239 list_for_each_entry(vif, &ar->vif_list, list) {
2240 if (!test_bit(CONNECTED, &vif->flags) ||
2241 !ath6kl_cfg80211_ready(vif))
2242 continue;
2243 connected = true;
2244
2245 ret = ath6kl_wow_suspend_vif(vif, wow, &filter);
2246 if (ret)
2247 break;
2248 }
2249 spin_unlock_bh(&ar->list_lock);
2250
2251 if (!connected)
2252 return -ENOTCONN;
2253 else if (ret)
2254 return ret;
2255
2256 ar->state = ATH6KL_STATE_SUSPENDING;
2257
2258 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx,
2259 ATH6KL_WOW_MODE_ENABLE,
2260 filter,
2261 WOW_HOST_REQ_DELAY);
2262 if (ret)
2263 return ret;
2264
2265 return ath6kl_cfg80211_host_sleep(ar, first_vif);
2266}
2267
2268static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif)
2269{
2270 struct ath6kl *ar = vif->ar;
2271 int ret;
2272
2273 if (vif->nw_type != AP_NETWORK) {
2274 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2275 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
2276 if (ret)
2277 return ret;
2278
2279 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
2280 vif->listen_intvl_t, 0);
2281 if (ret)
2282 return ret;
2283
2284 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
2285 vif->bmiss_time_t, 0);
2286 if (ret)
2287 return ret;
2288 }
2289
2290 if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) &&
2291 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
2292 ar->fw_capabilities)) {
2293 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
2294 vif->fw_vif_idx, true);
2295 if (ret)
2296 return ret;
2297 }
2298
2299 netif_wake_queue(vif->ndev);
2300
2301 return 0;
2302}
2303
2304static int ath6kl_wow_resume(struct ath6kl *ar)
2305{
2306 struct ath6kl_vif *vif;
2307 int ret;
2308
2309 vif = ath6kl_vif_first(ar);
2310 if (WARN_ON(!vif) ||
2311 !ath6kl_cfg80211_ready(vif))
2312 return -EIO;
2313
2314 ar->state = ATH6KL_STATE_RESUMING;
2315
2316 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2317 ATH6KL_HOST_MODE_AWAKE);
2318 if (ret) {
2319 ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n",
2320 ret);
2321 goto cleanup;
2322 }
2323
2324 spin_lock_bh(&ar->list_lock);
2325 list_for_each_entry(vif, &ar->vif_list, list) {
2326 if (!test_bit(CONNECTED, &vif->flags) ||
2327 !ath6kl_cfg80211_ready(vif))
2328 continue;
2329 ret = ath6kl_wow_resume_vif(vif);
2330 if (ret)
2331 break;
2332 }
2333 spin_unlock_bh(&ar->list_lock);
2334
2335 if (ret)
2336 goto cleanup;
2337
2338 ar->state = ATH6KL_STATE_ON;
2339 return 0;
2340
2341cleanup:
2342 ar->state = ATH6KL_STATE_WOW;
2343 return ret;
2344}
2345
2346static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar)
2347{
2348 struct ath6kl_vif *vif;
2349 int ret;
2350
2351 vif = ath6kl_vif_first(ar);
2352 if (!vif)
2353 return -EIO;
2354
2355 if (!test_bit(WMI_READY, &ar->flag)) {
2356 ath6kl_err("deepsleep failed as wmi is not ready\n");
2357 return -EIO;
2358 }
2359
2360 ath6kl_cfg80211_stop_all(ar);
2361
2362 /* Save the current power mode before enabling power save */
2363 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
2364
2365 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
2366 if (ret)
2367 return ret;
2368
2369 /* Disable WOW mode */
2370 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
2371 ATH6KL_WOW_MODE_DISABLE,
2372 0, 0);
2373 if (ret)
2374 return ret;
2375
2376 /* Flush all non control pkts in TX path */
2377 ath6kl_tx_data_cleanup(ar);
2378
2379 ret = ath6kl_cfg80211_host_sleep(ar, vif);
2380 if (ret)
2381 return ret;
2382
2383 return 0;
2384}
2385
2386static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar)
2387{
2388 struct ath6kl_vif *vif;
2389 int ret;
2390
2391 vif = ath6kl_vif_first(ar);
2392
2393 if (!vif)
2394 return -EIO;
2395
2396 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
2397 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
2398 ar->wmi->saved_pwr_mode);
2399 if (ret)
2400 return ret;
2401 }
2402
2403 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2404 ATH6KL_HOST_MODE_AWAKE);
2405 if (ret)
2406 return ret;
2407
2408 ar->state = ATH6KL_STATE_ON;
2409
2410 /* Reset scan parameter to default values */
2411 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2412 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
2413 if (ret)
2414 return ret;
2415
2416 return 0;
2417}
2418
2419int ath6kl_cfg80211_suspend(struct ath6kl *ar,
2420 enum ath6kl_cfg_suspend_mode mode,
2421 struct cfg80211_wowlan *wow)
2422{
2423 struct ath6kl_vif *vif;
2424 enum ath6kl_state prev_state;
2425 int ret;
2426
2427 switch (mode) {
2428 case ATH6KL_CFG_SUSPEND_WOW:
2429
2430 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n");
2431
2432 /* Flush all non control pkts in TX path */
2433 ath6kl_tx_data_cleanup(ar);
2434
2435 prev_state = ar->state;
2436
2437 ret = ath6kl_wow_suspend(ar, wow);
2438 if (ret) {
2439 ar->state = prev_state;
2440 return ret;
2441 }
2442
2443 ar->state = ATH6KL_STATE_WOW;
2444 break;
2445
2446 case ATH6KL_CFG_SUSPEND_DEEPSLEEP:
2447
2448 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n");
2449
2450 ret = ath6kl_cfg80211_deepsleep_suspend(ar);
2451 if (ret) {
2452 ath6kl_err("deepsleep suspend failed: %d\n", ret);
2453 return ret;
2454 }
2455
2456 ar->state = ATH6KL_STATE_DEEPSLEEP;
2457
2458 break;
2459
2460 case ATH6KL_CFG_SUSPEND_CUTPOWER:
2461
2462 ath6kl_cfg80211_stop_all(ar);
2463
2464 if (ar->state == ATH6KL_STATE_OFF) {
2465 ath6kl_dbg(ATH6KL_DBG_SUSPEND,
2466 "suspend hw off, no action for cutpower\n");
2467 break;
2468 }
2469
2470 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n");
2471
2472 ret = ath6kl_init_hw_stop(ar);
2473 if (ret) {
2474 ath6kl_warn("failed to stop hw during suspend: %d\n",
2475 ret);
2476 }
2477
2478 ar->state = ATH6KL_STATE_CUTPOWER;
2479
2480 break;
2481
2482 default:
2483 break;
2484 }
2485
2486 list_for_each_entry(vif, &ar->vif_list, list)
2487 ath6kl_cfg80211_scan_complete_event(vif, true);
2488
2489 return 0;
2490}
2491EXPORT_SYMBOL(ath6kl_cfg80211_suspend);
2492
2493int ath6kl_cfg80211_resume(struct ath6kl *ar)
2494{
2495 int ret;
2496
2497 switch (ar->state) {
2498 case ATH6KL_STATE_WOW:
2499 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n");
2500
2501 ret = ath6kl_wow_resume(ar);
2502 if (ret) {
2503 ath6kl_warn("wow mode resume failed: %d\n", ret);
2504 return ret;
2505 }
2506
2507 break;
2508
2509 case ATH6KL_STATE_DEEPSLEEP:
2510 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n");
2511
2512 ret = ath6kl_cfg80211_deepsleep_resume(ar);
2513 if (ret) {
2514 ath6kl_warn("deep sleep resume failed: %d\n", ret);
2515 return ret;
2516 }
2517 break;
2518
2519 case ATH6KL_STATE_CUTPOWER:
2520 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n");
2521
2522 ret = ath6kl_init_hw_start(ar);
2523 if (ret) {
2524 ath6kl_warn("Failed to boot hw in resume: %d\n", ret);
2525 return ret;
2526 }
2527 break;
2528
2529 default:
2530 break;
2531 }
2532
2533 return 0;
2534}
2535EXPORT_SYMBOL(ath6kl_cfg80211_resume);
2536
2537#ifdef CONFIG_PM
2538
2539/* hif layer decides what suspend mode to use */
2540static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy,
2541 struct cfg80211_wowlan *wow)
2542{
2543 struct ath6kl *ar = wiphy_priv(wiphy);
2544
2545 ath6kl_recovery_suspend(ar);
2546
2547 return ath6kl_hif_suspend(ar, wow);
2548}
2549
2550static int __ath6kl_cfg80211_resume(struct wiphy *wiphy)
2551{
2552 struct ath6kl *ar = wiphy_priv(wiphy);
2553 int err;
2554
2555 err = ath6kl_hif_resume(ar);
2556 if (err)
2557 return err;
2558
2559 ath6kl_recovery_resume(ar);
2560
2561 return 0;
2562}
2563
2564/*
2565 * FIXME: WOW suspend mode is selected if the host sdio controller supports
2566 * both sdio irq wake up and keep power. The target pulls sdio data line to
2567 * wake up the host when WOW pattern matches. This causes sdio irq handler
2568 * is being called in the host side which internally hits ath6kl's RX path.
2569 *
2570 * Since sdio interrupt is not disabled, RX path executes even before
2571 * the host executes the actual resume operation from PM module.
2572 *
2573 * In the current scenario, WOW resume should happen before start processing
2574 * any data from the target. So It's required to perform WOW resume in RX path.
2575 * Ideally we should perform WOW resume only in the actual platform
2576 * resume path. This area needs bit rework to avoid WOW resume in RX path.
2577 *
2578 * ath6kl_check_wow_status() is called from ath6kl_rx().
2579 */
2580void ath6kl_check_wow_status(struct ath6kl *ar)
2581{
2582 if (ar->state == ATH6KL_STATE_SUSPENDING)
2583 return;
2584
2585 if (ar->state == ATH6KL_STATE_WOW)
2586 ath6kl_cfg80211_resume(ar);
2587}
2588
2589#else
2590
2591void ath6kl_check_wow_status(struct ath6kl *ar)
2592{
2593}
2594#endif
2595
2596static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum nl80211_band band,
2597 bool ht_enable)
2598{
2599 struct ath6kl_htcap *htcap = &vif->htcap[band];
2600
2601 if (htcap->ht_enable == ht_enable)
2602 return 0;
2603
2604 if (ht_enable) {
2605 /* Set default ht capabilities */
2606 htcap->ht_enable = true;
2607 htcap->cap_info = (band == NL80211_BAND_2GHZ) ?
2608 ath6kl_g_htcap : ath6kl_a_htcap;
2609 htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K;
2610 } else /* Disable ht */
2611 memset(htcap, 0, sizeof(*htcap));
2612
2613 return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx,
2614 band, htcap);
2615}
2616
2617static int ath6kl_restore_htcap(struct ath6kl_vif *vif)
2618{
2619 struct wiphy *wiphy = vif->ar->wiphy;
2620 int band, ret = 0;
2621
2622 for (band = 0; band < NUM_NL80211_BANDS; band++) {
2623 if (!wiphy->bands[band])
2624 continue;
2625
2626 ret = ath6kl_set_htcap(vif, band,
2627 wiphy->bands[band]->ht_cap.ht_supported);
2628 if (ret)
2629 return ret;
2630 }
2631
2632 return ret;
2633}
2634
2635static bool ath6kl_is_p2p_ie(const u8 *pos)
2636{
2637 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
2638 pos[2] == 0x50 && pos[3] == 0x6f &&
2639 pos[4] == 0x9a && pos[5] == 0x09;
2640}
2641
2642static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif,
2643 const u8 *ies, size_t ies_len)
2644{
2645 struct ath6kl *ar = vif->ar;
2646 const u8 *pos;
2647 u8 *buf = NULL;
2648 size_t len = 0;
2649 int ret;
2650
2651 /*
2652 * Filter out P2P IE(s) since they will be included depending on
2653 * the Probe Request frame in ath6kl_send_go_probe_resp().
2654 */
2655
2656 if (ies && ies_len) {
2657 buf = kmalloc(ies_len, GFP_KERNEL);
2658 if (buf == NULL)
2659 return -ENOMEM;
2660 pos = ies;
2661 while (pos + 1 < ies + ies_len) {
2662 if (pos + 2 + pos[1] > ies + ies_len)
2663 break;
2664 if (!ath6kl_is_p2p_ie(pos)) {
2665 memcpy(buf + len, pos, 2 + pos[1]);
2666 len += 2 + pos[1];
2667 }
2668 pos += 2 + pos[1];
2669 }
2670 }
2671
2672 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2673 WMI_FRAME_PROBE_RESP, buf, len);
2674 kfree(buf);
2675 return ret;
2676}
2677
2678static int ath6kl_set_ies(struct ath6kl_vif *vif,
2679 struct cfg80211_beacon_data *info)
2680{
2681 struct ath6kl *ar = vif->ar;
2682 int res;
2683
2684 /* this also clears IE in fw if it's not set */
2685 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2686 WMI_FRAME_BEACON,
2687 info->beacon_ies,
2688 info->beacon_ies_len);
2689 if (res)
2690 return res;
2691
2692 /* this also clears IE in fw if it's not set */
2693 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies,
2694 info->proberesp_ies_len);
2695 if (res)
2696 return res;
2697
2698 /* this also clears IE in fw if it's not set */
2699 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2700 WMI_FRAME_ASSOC_RESP,
2701 info->assocresp_ies,
2702 info->assocresp_ies_len);
2703 if (res)
2704 return res;
2705
2706 return 0;
2707}
2708
2709static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon,
2710 u8 *rsn_capab)
2711{
2712 const u8 *rsn_ie;
2713 size_t rsn_ie_len;
2714 u16 cnt;
2715
2716 if (!beacon->tail)
2717 return -EINVAL;
2718
2719 rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len);
2720 if (!rsn_ie)
2721 return -EINVAL;
2722
2723 rsn_ie_len = *(rsn_ie + 1);
2724 /* skip element id and length */
2725 rsn_ie += 2;
2726
2727 /* skip version */
2728 if (rsn_ie_len < 2)
2729 return -EINVAL;
2730 rsn_ie += 2;
2731 rsn_ie_len -= 2;
2732
2733 /* skip group cipher suite */
2734 if (rsn_ie_len < 4)
2735 return 0;
2736 rsn_ie += 4;
2737 rsn_ie_len -= 4;
2738
2739 /* skip pairwise cipher suite */
2740 if (rsn_ie_len < 2)
2741 return 0;
2742 cnt = get_unaligned_le16(rsn_ie);
2743 rsn_ie += (2 + cnt * 4);
2744 rsn_ie_len -= (2 + cnt * 4);
2745
2746 /* skip akm suite */
2747 if (rsn_ie_len < 2)
2748 return 0;
2749 cnt = get_unaligned_le16(rsn_ie);
2750 rsn_ie += (2 + cnt * 4);
2751 rsn_ie_len -= (2 + cnt * 4);
2752
2753 if (rsn_ie_len < 2)
2754 return 0;
2755
2756 memcpy(rsn_capab, rsn_ie, 2);
2757
2758 return 0;
2759}
2760
2761static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
2762 struct cfg80211_ap_settings *info)
2763{
2764 struct ath6kl *ar = ath6kl_priv(dev);
2765 struct ath6kl_vif *vif = netdev_priv(dev);
2766 struct ieee80211_mgmt *mgmt;
2767 bool hidden = false;
2768 u8 *ies;
2769 struct wmi_connect_cmd p;
2770 int res;
2771 int i, ret;
2772 u16 rsn_capab = 0;
2773 int inactivity_timeout = 0;
2774
2775 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__);
2776
2777 if (!ath6kl_cfg80211_ready(vif))
2778 return -EIO;
2779
2780 if (vif->next_mode != AP_NETWORK)
2781 return -EOPNOTSUPP;
2782
2783 res = ath6kl_set_ies(vif, &info->beacon);
2784
2785 ar->ap_mode_bkey.valid = false;
2786
2787 ret = ath6kl_wmi_ap_set_beacon_intvl_cmd(ar->wmi, vif->fw_vif_idx,
2788 info->beacon_interval);
2789
2790 if (ret)
2791 ath6kl_warn("Failed to set beacon interval: %d\n", ret);
2792
2793 ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx,
2794 info->dtim_period);
2795
2796 /* ignore error, just print a warning and continue normally */
2797 if (ret)
2798 ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret);
2799
2800 if (info->beacon.head == NULL)
2801 return -EINVAL;
2802 mgmt = (struct ieee80211_mgmt *) info->beacon.head;
2803 ies = mgmt->u.beacon.variable;
2804 if (ies > info->beacon.head + info->beacon.head_len)
2805 return -EINVAL;
2806
2807 if (info->ssid == NULL)
2808 return -EINVAL;
2809 memcpy(vif->ssid, info->ssid, info->ssid_len);
2810 vif->ssid_len = info->ssid_len;
2811 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE)
2812 hidden = true;
2813
2814 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden);
2815 if (res)
2816 return res;
2817
2818 ret = ath6kl_set_auth_type(vif, info->auth_type);
2819 if (ret)
2820 return ret;
2821
2822 memset(&p, 0, sizeof(p));
2823
2824 for (i = 0; i < info->crypto.n_akm_suites; i++) {
2825 switch (info->crypto.akm_suites[i]) {
2826 case WLAN_AKM_SUITE_8021X:
2827 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2828 p.auth_mode |= WPA_AUTH;
2829 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2830 p.auth_mode |= WPA2_AUTH;
2831 break;
2832 case WLAN_AKM_SUITE_PSK:
2833 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2834 p.auth_mode |= WPA_PSK_AUTH;
2835 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2836 p.auth_mode |= WPA2_PSK_AUTH;
2837 break;
2838 }
2839 }
2840 if (p.auth_mode == 0)
2841 p.auth_mode = NONE_AUTH;
2842 vif->auth_mode = p.auth_mode;
2843
2844 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) {
2845 switch (info->crypto.ciphers_pairwise[i]) {
2846 case WLAN_CIPHER_SUITE_WEP40:
2847 case WLAN_CIPHER_SUITE_WEP104:
2848 p.prwise_crypto_type |= WEP_CRYPT;
2849 break;
2850 case WLAN_CIPHER_SUITE_TKIP:
2851 p.prwise_crypto_type |= TKIP_CRYPT;
2852 break;
2853 case WLAN_CIPHER_SUITE_CCMP:
2854 p.prwise_crypto_type |= AES_CRYPT;
2855 break;
2856 case WLAN_CIPHER_SUITE_SMS4:
2857 p.prwise_crypto_type |= WAPI_CRYPT;
2858 break;
2859 }
2860 }
2861 if (p.prwise_crypto_type == 0) {
2862 p.prwise_crypto_type = NONE_CRYPT;
2863 ath6kl_set_cipher(vif, 0, true);
2864 } else if (info->crypto.n_ciphers_pairwise == 1) {
2865 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true);
2866 }
2867
2868 switch (info->crypto.cipher_group) {
2869 case WLAN_CIPHER_SUITE_WEP40:
2870 case WLAN_CIPHER_SUITE_WEP104:
2871 p.grp_crypto_type = WEP_CRYPT;
2872 break;
2873 case WLAN_CIPHER_SUITE_TKIP:
2874 p.grp_crypto_type = TKIP_CRYPT;
2875 break;
2876 case WLAN_CIPHER_SUITE_CCMP:
2877 p.grp_crypto_type = AES_CRYPT;
2878 break;
2879 case WLAN_CIPHER_SUITE_SMS4:
2880 p.grp_crypto_type = WAPI_CRYPT;
2881 break;
2882 default:
2883 p.grp_crypto_type = NONE_CRYPT;
2884 break;
2885 }
2886 ath6kl_set_cipher(vif, info->crypto.cipher_group, false);
2887
2888 p.nw_type = AP_NETWORK;
2889 vif->nw_type = vif->next_mode;
2890
2891 p.ssid_len = vif->ssid_len;
2892 memcpy(p.ssid, vif->ssid, vif->ssid_len);
2893 p.dot11_auth_mode = vif->dot11_auth_mode;
2894 p.ch = cpu_to_le16(info->chandef.chan->center_freq);
2895
2896 /* Enable uAPSD support by default */
2897 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true);
2898 if (res < 0)
2899 return res;
2900
2901 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) {
2902 p.nw_subtype = SUBTYPE_P2PGO;
2903 } else {
2904 /*
2905 * Due to firmware limitation, it is not possible to
2906 * do P2P mgmt operations in AP mode
2907 */
2908 p.nw_subtype = SUBTYPE_NONE;
2909 }
2910
2911 if (info->inactivity_timeout) {
2912 inactivity_timeout = info->inactivity_timeout;
2913
2914 if (test_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS,
2915 ar->fw_capabilities))
2916 inactivity_timeout = DIV_ROUND_UP(inactivity_timeout,
2917 60);
2918
2919 res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx,
2920 inactivity_timeout);
2921 if (res < 0)
2922 return res;
2923 }
2924
2925 if (ath6kl_set_htcap(vif, info->chandef.chan->band,
2926 cfg80211_get_chandef_type(&info->chandef)
2927 != NL80211_CHAN_NO_HT))
2928 return -EIO;
2929
2930 /*
2931 * Get the PTKSA replay counter in the RSN IE. Supplicant
2932 * will use the RSN IE in M3 message and firmware has to
2933 * advertise the same in beacon/probe response. Send
2934 * the complete RSN IE capability field to firmware
2935 */
2936 if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) &&
2937 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
2938 ar->fw_capabilities)) {
2939 res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx,
2940 WLAN_EID_RSN, WMI_RSN_IE_CAPB,
2941 (const u8 *) &rsn_capab,
2942 sizeof(rsn_capab));
2943 vif->rsn_capab = rsn_capab;
2944 if (res < 0)
2945 return res;
2946 }
2947
2948 memcpy(&vif->profile, &p, sizeof(p));
2949 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p);
2950 if (res < 0)
2951 return res;
2952
2953 return 0;
2954}
2955
2956static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev,
2957 struct cfg80211_ap_update *params)
2958{
2959 struct ath6kl_vif *vif = netdev_priv(dev);
2960
2961 if (!ath6kl_cfg80211_ready(vif))
2962 return -EIO;
2963
2964 if (vif->next_mode != AP_NETWORK)
2965 return -EOPNOTSUPP;
2966
2967 return ath6kl_set_ies(vif, ¶ms->beacon);
2968}
2969
2970static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev,
2971 unsigned int link_id)
2972{
2973 struct ath6kl *ar = ath6kl_priv(dev);
2974 struct ath6kl_vif *vif = netdev_priv(dev);
2975
2976 if (vif->nw_type != AP_NETWORK)
2977 return -EOPNOTSUPP;
2978 if (!test_bit(CONNECTED, &vif->flags))
2979 return -ENOTCONN;
2980
2981 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
2982 clear_bit(CONNECTED, &vif->flags);
2983 netif_carrier_off(vif->ndev);
2984
2985 /* Restore ht setting in firmware */
2986 return ath6kl_restore_htcap(vif);
2987}
2988
2989static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2990
2991static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev,
2992 struct station_del_parameters *params)
2993{
2994 struct ath6kl *ar = ath6kl_priv(dev);
2995 struct ath6kl_vif *vif = netdev_priv(dev);
2996 const u8 *addr = params->mac ? params->mac : bcast_addr;
2997
2998 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH,
2999 addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
3000}
3001
3002static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev,
3003 const u8 *mac,
3004 struct station_parameters *params)
3005{
3006 struct ath6kl *ar = ath6kl_priv(dev);
3007 struct ath6kl_vif *vif = netdev_priv(dev);
3008 int err;
3009
3010 if (vif->nw_type != AP_NETWORK)
3011 return -EOPNOTSUPP;
3012
3013 err = cfg80211_check_station_change(wiphy, params,
3014 CFG80211_STA_AP_MLME_CLIENT);
3015 if (err)
3016 return err;
3017
3018 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
3019 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
3020 WMI_AP_MLME_AUTHORIZE, mac, 0);
3021 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
3022 WMI_AP_MLME_UNAUTHORIZE, mac, 0);
3023}
3024
3025static int ath6kl_remain_on_channel(struct wiphy *wiphy,
3026 struct wireless_dev *wdev,
3027 struct ieee80211_channel *chan,
3028 unsigned int duration,
3029 u64 *cookie)
3030{
3031 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3032 struct ath6kl *ar = ath6kl_priv(vif->ndev);
3033 u32 id;
3034
3035 /* TODO: if already pending or ongoing remain-on-channel,
3036 * return -EBUSY */
3037 id = ++vif->last_roc_id;
3038 if (id == 0) {
3039 /* Do not use 0 as the cookie value */
3040 id = ++vif->last_roc_id;
3041 }
3042 *cookie = id;
3043
3044 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx,
3045 chan->center_freq, duration);
3046}
3047
3048static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy,
3049 struct wireless_dev *wdev,
3050 u64 cookie)
3051{
3052 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3053 struct ath6kl *ar = ath6kl_priv(vif->ndev);
3054
3055 if (cookie != vif->last_roc_id)
3056 return -ENOENT;
3057 vif->last_cancel_roc_id = cookie;
3058
3059 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx);
3060}
3061
3062static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif,
3063 const u8 *buf, size_t len,
3064 unsigned int freq)
3065{
3066 struct ath6kl *ar = vif->ar;
3067 const u8 *pos;
3068 u8 *p2p;
3069 int p2p_len;
3070 int ret;
3071 const struct ieee80211_mgmt *mgmt;
3072
3073 mgmt = (const struct ieee80211_mgmt *) buf;
3074
3075 /* Include P2P IE(s) from the frame generated in user space. */
3076
3077 p2p = kmalloc(len, GFP_KERNEL);
3078 if (p2p == NULL)
3079 return -ENOMEM;
3080 p2p_len = 0;
3081
3082 pos = mgmt->u.probe_resp.variable;
3083 while (pos + 1 < buf + len) {
3084 if (pos + 2 + pos[1] > buf + len)
3085 break;
3086 if (ath6kl_is_p2p_ie(pos)) {
3087 memcpy(p2p + p2p_len, pos, 2 + pos[1]);
3088 p2p_len += 2 + pos[1];
3089 }
3090 pos += 2 + pos[1];
3091 }
3092
3093 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq,
3094 mgmt->da, p2p, p2p_len);
3095 kfree(p2p);
3096 return ret;
3097}
3098
3099static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif,
3100 u32 id,
3101 u32 freq,
3102 u32 wait,
3103 const u8 *buf,
3104 size_t len,
3105 bool *more_data,
3106 bool no_cck)
3107{
3108 struct ieee80211_mgmt *mgmt;
3109 struct ath6kl_sta *conn;
3110 bool is_psq_empty = false;
3111 struct ath6kl_mgmt_buff *mgmt_buf;
3112 size_t mgmt_buf_size;
3113 struct ath6kl *ar = vif->ar;
3114
3115 mgmt = (struct ieee80211_mgmt *) buf;
3116 if (is_multicast_ether_addr(mgmt->da))
3117 return false;
3118
3119 conn = ath6kl_find_sta(vif, mgmt->da);
3120 if (!conn)
3121 return false;
3122
3123 if (conn->sta_flags & STA_PS_SLEEP) {
3124 if (!(conn->sta_flags & STA_PS_POLLED)) {
3125 /* Queue the frames if the STA is sleeping */
3126 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff);
3127 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL);
3128 if (!mgmt_buf)
3129 return false;
3130
3131 INIT_LIST_HEAD(&mgmt_buf->list);
3132 mgmt_buf->id = id;
3133 mgmt_buf->freq = freq;
3134 mgmt_buf->wait = wait;
3135 mgmt_buf->len = len;
3136 mgmt_buf->no_cck = no_cck;
3137 memcpy(mgmt_buf->buf, buf, len);
3138 spin_lock_bh(&conn->psq_lock);
3139 is_psq_empty = skb_queue_empty(&conn->psq) &&
3140 (conn->mgmt_psq_len == 0);
3141 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq);
3142 conn->mgmt_psq_len++;
3143 spin_unlock_bh(&conn->psq_lock);
3144
3145 /*
3146 * If this is the first pkt getting queued
3147 * for this STA, update the PVB for this
3148 * STA.
3149 */
3150 if (is_psq_empty)
3151 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
3152 conn->aid, 1);
3153 return true;
3154 }
3155
3156 /*
3157 * This tx is because of a PsPoll.
3158 * Determine if MoreData bit has to be set.
3159 */
3160 spin_lock_bh(&conn->psq_lock);
3161 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0))
3162 *more_data = true;
3163 spin_unlock_bh(&conn->psq_lock);
3164 }
3165
3166 return false;
3167}
3168
3169/* Check if SSID length is greater than DIRECT- */
3170static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len)
3171{
3172 const struct ieee80211_mgmt *mgmt;
3173 mgmt = (const struct ieee80211_mgmt *) buf;
3174
3175 /* variable[1] contains the SSID tag length */
3176 if (buf + len >= &mgmt->u.probe_resp.variable[1] &&
3177 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) {
3178 return true;
3179 }
3180
3181 return false;
3182}
3183
3184static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3185 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
3186{
3187 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3188 struct ath6kl *ar = ath6kl_priv(vif->ndev);
3189 struct ieee80211_channel *chan = params->chan;
3190 const u8 *buf = params->buf;
3191 size_t len = params->len;
3192 unsigned int wait = params->wait;
3193 bool no_cck = params->no_cck;
3194 u32 id, freq;
3195 const struct ieee80211_mgmt *mgmt;
3196 bool more_data, queued;
3197
3198 /* default to the current channel, but use the one specified as argument
3199 * if any
3200 */
3201 freq = vif->ch_hint;
3202 if (chan)
3203 freq = chan->center_freq;
3204
3205 /* never send freq zero to the firmware */
3206 if (WARN_ON(freq == 0))
3207 return -EINVAL;
3208
3209 mgmt = (const struct ieee80211_mgmt *) buf;
3210 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) &&
3211 ieee80211_is_probe_resp(mgmt->frame_control) &&
3212 ath6kl_is_p2p_go_ssid(buf, len)) {
3213 /*
3214 * Send Probe Response frame in GO mode using a separate WMI
3215 * command to allow the target to fill in the generic IEs.
3216 */
3217 *cookie = 0; /* TX status not supported */
3218 return ath6kl_send_go_probe_resp(vif, buf, len, freq);
3219 }
3220
3221 id = vif->send_action_id++;
3222 if (id == 0) {
3223 /*
3224 * 0 is a reserved value in the WMI command and shall not be
3225 * used for the command.
3226 */
3227 id = vif->send_action_id++;
3228 }
3229
3230 *cookie = id;
3231
3232 /* AP mode Power saving processing */
3233 if (vif->nw_type == AP_NETWORK) {
3234 queued = ath6kl_mgmt_powersave_ap(vif, id, freq, wait, buf, len,
3235 &more_data, no_cck);
3236 if (queued)
3237 return 0;
3238 }
3239
3240 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, freq,
3241 wait, buf, len, no_cck);
3242}
3243
3244static int ath6kl_get_antenna(struct wiphy *wiphy,
3245 u32 *tx_ant, u32 *rx_ant)
3246{
3247 struct ath6kl *ar = wiphy_priv(wiphy);
3248 *tx_ant = ar->hw.tx_ant;
3249 *rx_ant = ar->hw.rx_ant;
3250 return 0;
3251}
3252
3253static void ath6kl_update_mgmt_frame_registrations(struct wiphy *wiphy,
3254 struct wireless_dev *wdev,
3255 struct mgmt_frame_regs *upd)
3256{
3257 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3258
3259 /*
3260 * FIXME: send WMI_PROBE_REQ_REPORT_CMD here instead of hardcoding
3261 * the reporting in the target all the time, this callback
3262 * *is* allowed to sleep after all.
3263 */
3264 vif->probe_req_report =
3265 upd->interface_stypes & BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3266}
3267
3268static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy,
3269 struct net_device *dev,
3270 struct cfg80211_sched_scan_request *request)
3271{
3272 struct ath6kl *ar = ath6kl_priv(dev);
3273 struct ath6kl_vif *vif = netdev_priv(dev);
3274 u16 interval;
3275 int ret, rssi_thold;
3276 int n_match_sets = request->n_match_sets;
3277
3278 /*
3279 * If there's a matchset w/o an SSID, then assume it's just for
3280 * the RSSI (nothing else is currently supported) and ignore it.
3281 * The device only supports a global RSSI filter that we set below.
3282 */
3283 if (n_match_sets == 1 && !request->match_sets[0].ssid.ssid_len)
3284 n_match_sets = 0;
3285
3286 if (ar->state != ATH6KL_STATE_ON)
3287 return -EIO;
3288
3289 if (vif->sme_state != SME_DISCONNECTED)
3290 return -EBUSY;
3291
3292 ath6kl_cfg80211_scan_complete_event(vif, true);
3293
3294 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
3295 request->n_ssids,
3296 request->match_sets,
3297 n_match_sets);
3298 if (ret < 0)
3299 return ret;
3300
3301 if (!n_match_sets) {
3302 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
3303 ALL_BSS_FILTER, 0);
3304 if (ret < 0)
3305 return ret;
3306 } else {
3307 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
3308 MATCHED_SSID_FILTER, 0);
3309 if (ret < 0)
3310 return ret;
3311 }
3312
3313 if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD,
3314 ar->fw_capabilities)) {
3315 if (request->min_rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF)
3316 rssi_thold = 0;
3317 else if (request->min_rssi_thold < -127)
3318 rssi_thold = -127;
3319 else
3320 rssi_thold = request->min_rssi_thold;
3321
3322 ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx,
3323 rssi_thold);
3324 if (ret) {
3325 ath6kl_err("failed to set RSSI threshold for scan\n");
3326 return ret;
3327 }
3328 }
3329
3330 /* fw uses seconds, also make sure that it's >0 */
3331 interval = max_t(u16, 1, request->scan_plans[0].interval);
3332
3333 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
3334 interval, interval,
3335 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
3336
3337 /* this also clears IE in fw if it's not set */
3338 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
3339 WMI_FRAME_PROBE_REQ,
3340 request->ie, request->ie_len);
3341 if (ret) {
3342 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n",
3343 ret);
3344 return ret;
3345 }
3346
3347 ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true);
3348 if (ret)
3349 return ret;
3350
3351 set_bit(SCHED_SCANNING, &vif->flags);
3352
3353 return 0;
3354}
3355
3356static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy,
3357 struct net_device *dev, u64 reqid)
3358{
3359 struct ath6kl_vif *vif = netdev_priv(dev);
3360 bool stopped;
3361
3362 stopped = __ath6kl_cfg80211_sscan_stop(vif);
3363
3364 if (!stopped)
3365 return -EIO;
3366
3367 return 0;
3368}
3369
3370static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy,
3371 struct net_device *dev,
3372 unsigned int link_id,
3373 const u8 *addr,
3374 const struct cfg80211_bitrate_mask *mask)
3375{
3376 struct ath6kl *ar = ath6kl_priv(dev);
3377 struct ath6kl_vif *vif = netdev_priv(dev);
3378
3379 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx,
3380 mask);
3381}
3382
3383static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy,
3384 struct net_device *dev,
3385 u32 rate, u32 pkts, u32 intvl)
3386{
3387 struct ath6kl *ar = ath6kl_priv(dev);
3388 struct ath6kl_vif *vif = netdev_priv(dev);
3389
3390 if (vif->nw_type != INFRA_NETWORK ||
3391 !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities))
3392 return -EOPNOTSUPP;
3393
3394 if (vif->sme_state != SME_CONNECTED)
3395 return -ENOTCONN;
3396
3397 /* save this since the firmware won't report the interval */
3398 vif->txe_intvl = intvl;
3399
3400 return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx,
3401 rate, pkts, intvl);
3402}
3403
3404static const struct ieee80211_txrx_stypes
3405ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = {
3406 [NL80211_IFTYPE_STATION] = {
3407 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3408 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3409 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3410 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3411 },
3412 [NL80211_IFTYPE_AP] = {
3413 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3414 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3415 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3416 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3417 },
3418 [NL80211_IFTYPE_P2P_CLIENT] = {
3419 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3420 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3421 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3422 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3423 },
3424 [NL80211_IFTYPE_P2P_GO] = {
3425 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3426 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3427 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3428 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3429 },
3430};
3431
3432static struct cfg80211_ops ath6kl_cfg80211_ops = {
3433 .add_virtual_intf = ath6kl_cfg80211_add_iface,
3434 .del_virtual_intf = ath6kl_cfg80211_del_iface,
3435 .change_virtual_intf = ath6kl_cfg80211_change_iface,
3436 .scan = ath6kl_cfg80211_scan,
3437 .connect = ath6kl_cfg80211_connect,
3438 .disconnect = ath6kl_cfg80211_disconnect,
3439 .add_key = ath6kl_cfg80211_add_key,
3440 .get_key = ath6kl_cfg80211_get_key,
3441 .del_key = ath6kl_cfg80211_del_key,
3442 .set_default_key = ath6kl_cfg80211_set_default_key,
3443 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,
3444 .set_tx_power = ath6kl_cfg80211_set_txpower,
3445 .get_tx_power = ath6kl_cfg80211_get_txpower,
3446 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,
3447 .join_ibss = ath6kl_cfg80211_join_ibss,
3448 .leave_ibss = ath6kl_cfg80211_leave_ibss,
3449 .get_station = ath6kl_get_station,
3450 .set_pmksa = ath6kl_set_pmksa,
3451 .del_pmksa = ath6kl_del_pmksa,
3452 .flush_pmksa = ath6kl_flush_pmksa,
3453 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd)
3454#ifdef CONFIG_PM
3455 .suspend = __ath6kl_cfg80211_suspend,
3456 .resume = __ath6kl_cfg80211_resume,
3457#endif
3458 .start_ap = ath6kl_start_ap,
3459 .change_beacon = ath6kl_change_beacon,
3460 .stop_ap = ath6kl_stop_ap,
3461 .del_station = ath6kl_del_station,
3462 .change_station = ath6kl_change_station,
3463 .remain_on_channel = ath6kl_remain_on_channel,
3464 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel,
3465 .mgmt_tx = ath6kl_mgmt_tx,
3466 .update_mgmt_frame_registrations =
3467 ath6kl_update_mgmt_frame_registrations,
3468 .get_antenna = ath6kl_get_antenna,
3469 .sched_scan_start = ath6kl_cfg80211_sscan_start,
3470 .sched_scan_stop = ath6kl_cfg80211_sscan_stop,
3471 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate,
3472 .set_cqm_txe_config = ath6kl_cfg80211_set_txe_config,
3473};
3474
3475void ath6kl_cfg80211_stop(struct ath6kl_vif *vif)
3476{
3477 ath6kl_cfg80211_sscan_disable(vif);
3478
3479 switch (vif->sme_state) {
3480 case SME_DISCONNECTED:
3481 break;
3482 case SME_CONNECTING:
3483 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0,
3484 NULL, 0,
3485 WLAN_STATUS_UNSPECIFIED_FAILURE,
3486 GFP_KERNEL);
3487 break;
3488 case SME_CONNECTED:
3489 cfg80211_disconnected(vif->ndev, 0, NULL, 0, true, GFP_KERNEL);
3490 break;
3491 }
3492
3493 if (vif->ar->state != ATH6KL_STATE_RECOVERY &&
3494 (test_bit(CONNECTED, &vif->flags) ||
3495 test_bit(CONNECT_PEND, &vif->flags)))
3496 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
3497
3498 vif->sme_state = SME_DISCONNECTED;
3499 clear_bit(CONNECTED, &vif->flags);
3500 clear_bit(CONNECT_PEND, &vif->flags);
3501
3502 /* Stop netdev queues, needed during recovery */
3503 netif_stop_queue(vif->ndev);
3504 netif_carrier_off(vif->ndev);
3505
3506 /* disable scanning */
3507 if (vif->ar->state != ATH6KL_STATE_RECOVERY &&
3508 ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF,
3509 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0)
3510 ath6kl_warn("failed to disable scan during stop\n");
3511
3512 ath6kl_cfg80211_scan_complete_event(vif, true);
3513}
3514
3515void ath6kl_cfg80211_stop_all(struct ath6kl *ar)
3516{
3517 struct ath6kl_vif *vif;
3518
3519 vif = ath6kl_vif_first(ar);
3520 if (!vif && ar->state != ATH6KL_STATE_RECOVERY) {
3521 /* save the current power mode before enabling power save */
3522 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
3523
3524 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0)
3525 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n");
3526 return;
3527 }
3528
3529 /*
3530 * FIXME: we should take ar->list_lock to protect changes in the
3531 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop()
3532 * sleeps.
3533 */
3534 list_for_each_entry(vif, &ar->vif_list, list)
3535 ath6kl_cfg80211_stop(vif);
3536}
3537
3538static void ath6kl_cfg80211_reg_notify(struct wiphy *wiphy,
3539 struct regulatory_request *request)
3540{
3541 struct ath6kl *ar = wiphy_priv(wiphy);
3542 u32 rates[NUM_NL80211_BANDS];
3543 int ret, i;
3544
3545 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
3546 "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n",
3547 request->alpha2[0], request->alpha2[1],
3548 request->intersect ? " intersect" : "",
3549 request->processed ? " processed" : "",
3550 request->initiator, request->user_reg_hint_type);
3551
3552 if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE)
3553 return;
3554
3555 ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2);
3556 if (ret) {
3557 ath6kl_err("failed to set regdomain: %d\n", ret);
3558 return;
3559 }
3560
3561 /*
3562 * Firmware will apply the regdomain change only after a scan is
3563 * issued and it will send a WMI_REGDOMAIN_EVENTID when it has been
3564 * changed.
3565 */
3566
3567 for (i = 0; i < NUM_NL80211_BANDS; i++)
3568 if (wiphy->bands[i])
3569 rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
3570
3571
3572 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false,
3573 false, 0, ATH6KL_FG_SCAN_INTERVAL,
3574 0, NULL, false, rates);
3575 if (ret) {
3576 ath6kl_err("failed to start scan for a regdomain change: %d\n",
3577 ret);
3578 return;
3579 }
3580}
3581
3582static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif)
3583{
3584 vif->aggr_cntxt = aggr_init(vif);
3585 if (!vif->aggr_cntxt) {
3586 ath6kl_err("failed to initialize aggr\n");
3587 return -ENOMEM;
3588 }
3589
3590 timer_setup(&vif->disconnect_timer, disconnect_timer_handler, 0);
3591 timer_setup(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer, 0);
3592
3593 set_bit(WMM_ENABLED, &vif->flags);
3594 spin_lock_init(&vif->if_lock);
3595
3596 INIT_LIST_HEAD(&vif->mc_filter);
3597
3598 return 0;
3599}
3600
3601void ath6kl_cfg80211_vif_stop(struct ath6kl_vif *vif, bool wmi_ready)
3602{
3603 static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3604 bool discon_issued;
3605
3606 netif_stop_queue(vif->ndev);
3607
3608 clear_bit(WLAN_ENABLED, &vif->flags);
3609
3610 if (wmi_ready) {
3611 discon_issued = test_bit(CONNECTED, &vif->flags) ||
3612 test_bit(CONNECT_PEND, &vif->flags);
3613 ath6kl_disconnect(vif);
3614 del_timer(&vif->disconnect_timer);
3615
3616 if (discon_issued)
3617 ath6kl_disconnect_event(vif, DISCONNECT_CMD,
3618 (vif->nw_type & AP_NETWORK) ?
3619 bcast_mac : vif->bssid,
3620 0, NULL, 0);
3621 }
3622
3623 if (vif->scan_req) {
3624 struct cfg80211_scan_info info = {
3625 .aborted = true,
3626 };
3627
3628 cfg80211_scan_done(vif->scan_req, &info);
3629 vif->scan_req = NULL;
3630 }
3631
3632 /* need to clean up enhanced bmiss detection fw state */
3633 ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
3634}
3635
3636void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif)
3637{
3638 struct ath6kl *ar = vif->ar;
3639 struct ath6kl_mc_filter *mc_filter, *tmp;
3640
3641 aggr_module_destroy(vif->aggr_cntxt);
3642
3643 ar->avail_idx_map |= BIT(vif->fw_vif_idx);
3644
3645 if (vif->nw_type == ADHOC_NETWORK)
3646 ar->ibss_if_active = false;
3647
3648 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
3649 list_del(&mc_filter->list);
3650 kfree(mc_filter);
3651 }
3652
3653 cfg80211_unregister_netdevice(vif->ndev);
3654
3655 ar->num_vif--;
3656}
3657
3658static const char ath6kl_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
3659 /* Common stats names used by many drivers. */
3660 "tx_pkts_nic", "tx_bytes_nic", "rx_pkts_nic", "rx_bytes_nic",
3661
3662 /* TX stats. */
3663 "d_tx_ucast_pkts", "d_tx_bcast_pkts",
3664 "d_tx_ucast_bytes", "d_tx_bcast_bytes",
3665 "d_tx_rts_ok", "d_tx_error", "d_tx_fail",
3666 "d_tx_retry", "d_tx_multi_retry", "d_tx_rts_fail",
3667 "d_tx_tkip_counter_measures",
3668
3669 /* RX Stats. */
3670 "d_rx_ucast_pkts", "d_rx_ucast_rate", "d_rx_bcast_pkts",
3671 "d_rx_ucast_bytes", "d_rx_bcast_bytes", "d_rx_frag_pkt",
3672 "d_rx_error", "d_rx_crc_err", "d_rx_keycache_miss",
3673 "d_rx_decrypt_crc_err", "d_rx_duplicate_frames",
3674 "d_rx_mic_err", "d_rx_tkip_format_err", "d_rx_ccmp_format_err",
3675 "d_rx_ccmp_replay_err",
3676
3677 /* Misc stats. */
3678 "d_beacon_miss", "d_num_connects", "d_num_disconnects",
3679 "d_beacon_avg_rssi", "d_arp_received", "d_arp_matched",
3680 "d_arp_replied"
3681};
3682
3683#define ATH6KL_STATS_LEN ARRAY_SIZE(ath6kl_gstrings_sta_stats)
3684
3685static int ath6kl_get_sset_count(struct net_device *dev, int sset)
3686{
3687 int rv = 0;
3688
3689 if (sset == ETH_SS_STATS)
3690 rv += ATH6KL_STATS_LEN;
3691
3692 if (rv == 0)
3693 return -EOPNOTSUPP;
3694 return rv;
3695}
3696
3697static void ath6kl_get_stats(struct net_device *dev,
3698 struct ethtool_stats *stats,
3699 u64 *data)
3700{
3701 struct ath6kl_vif *vif = netdev_priv(dev);
3702 struct ath6kl *ar = vif->ar;
3703 int i = 0;
3704 struct target_stats *tgt_stats;
3705
3706 memset(data, 0, sizeof(u64) * ATH6KL_STATS_LEN);
3707
3708 ath6kl_read_tgt_stats(ar, vif);
3709
3710 tgt_stats = &vif->target_stats;
3711
3712 data[i++] = tgt_stats->tx_ucast_pkt + tgt_stats->tx_bcast_pkt;
3713 data[i++] = tgt_stats->tx_ucast_byte + tgt_stats->tx_bcast_byte;
3714 data[i++] = tgt_stats->rx_ucast_pkt + tgt_stats->rx_bcast_pkt;
3715 data[i++] = tgt_stats->rx_ucast_byte + tgt_stats->rx_bcast_byte;
3716
3717 data[i++] = tgt_stats->tx_ucast_pkt;
3718 data[i++] = tgt_stats->tx_bcast_pkt;
3719 data[i++] = tgt_stats->tx_ucast_byte;
3720 data[i++] = tgt_stats->tx_bcast_byte;
3721 data[i++] = tgt_stats->tx_rts_success_cnt;
3722 data[i++] = tgt_stats->tx_err;
3723 data[i++] = tgt_stats->tx_fail_cnt;
3724 data[i++] = tgt_stats->tx_retry_cnt;
3725 data[i++] = tgt_stats->tx_mult_retry_cnt;
3726 data[i++] = tgt_stats->tx_rts_fail_cnt;
3727 data[i++] = tgt_stats->tkip_cnter_measures_invoked;
3728
3729 data[i++] = tgt_stats->rx_ucast_pkt;
3730 data[i++] = tgt_stats->rx_ucast_rate;
3731 data[i++] = tgt_stats->rx_bcast_pkt;
3732 data[i++] = tgt_stats->rx_ucast_byte;
3733 data[i++] = tgt_stats->rx_bcast_byte;
3734 data[i++] = tgt_stats->rx_frgment_pkt;
3735 data[i++] = tgt_stats->rx_err;
3736 data[i++] = tgt_stats->rx_crc_err;
3737 data[i++] = tgt_stats->rx_key_cache_miss;
3738 data[i++] = tgt_stats->rx_decrypt_err;
3739 data[i++] = tgt_stats->rx_dupl_frame;
3740 data[i++] = tgt_stats->tkip_local_mic_fail;
3741 data[i++] = tgt_stats->tkip_fmt_err;
3742 data[i++] = tgt_stats->ccmp_fmt_err;
3743 data[i++] = tgt_stats->ccmp_replays;
3744
3745 data[i++] = tgt_stats->cs_bmiss_cnt;
3746 data[i++] = tgt_stats->cs_connect_cnt;
3747 data[i++] = tgt_stats->cs_discon_cnt;
3748 data[i++] = tgt_stats->cs_ave_beacon_rssi;
3749 data[i++] = tgt_stats->arp_received;
3750 data[i++] = tgt_stats->arp_matched;
3751 data[i++] = tgt_stats->arp_replied;
3752
3753 if (i != ATH6KL_STATS_LEN) {
3754 WARN_ON_ONCE(1);
3755 ath6kl_err("ethtool stats error, i: %d STATS_LEN: %d\n",
3756 i, (int)ATH6KL_STATS_LEN);
3757 }
3758}
3759
3760/* These stats are per NIC, not really per vdev, so we just ignore dev. */
3761static void ath6kl_get_strings(struct net_device *dev, u32 sset, u8 *data)
3762{
3763 int sz_sta_stats = 0;
3764
3765 if (sset == ETH_SS_STATS) {
3766 sz_sta_stats = sizeof(ath6kl_gstrings_sta_stats);
3767 memcpy(data, ath6kl_gstrings_sta_stats, sz_sta_stats);
3768 }
3769}
3770
3771static const struct ethtool_ops ath6kl_ethtool_ops = {
3772 .get_drvinfo = cfg80211_get_drvinfo,
3773 .get_link = ethtool_op_get_link,
3774 .get_strings = ath6kl_get_strings,
3775 .get_ethtool_stats = ath6kl_get_stats,
3776 .get_sset_count = ath6kl_get_sset_count,
3777};
3778
3779struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name,
3780 unsigned char name_assign_type,
3781 enum nl80211_iftype type,
3782 u8 fw_vif_idx, u8 nw_type)
3783{
3784 struct net_device *ndev;
3785 struct ath6kl_vif *vif;
3786 u8 addr[ETH_ALEN];
3787
3788 ndev = alloc_netdev(sizeof(*vif), name, name_assign_type, ether_setup);
3789 if (!ndev)
3790 return NULL;
3791
3792 vif = netdev_priv(ndev);
3793 ndev->ieee80211_ptr = &vif->wdev;
3794 vif->wdev.wiphy = ar->wiphy;
3795 vif->ar = ar;
3796 vif->ndev = ndev;
3797 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy));
3798 vif->wdev.netdev = ndev;
3799 vif->wdev.iftype = type;
3800 vif->fw_vif_idx = fw_vif_idx;
3801 vif->nw_type = nw_type;
3802 vif->next_mode = nw_type;
3803 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL;
3804 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME;
3805 vif->bg_scan_period = 0;
3806 vif->htcap[NL80211_BAND_2GHZ].ht_enable = true;
3807 vif->htcap[NL80211_BAND_5GHZ].ht_enable = true;
3808
3809 ether_addr_copy(addr, ar->mac_addr);
3810 if (fw_vif_idx != 0) {
3811 addr[0] = (addr[0] ^ (1 << fw_vif_idx)) | 0x2;
3812 if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR,
3813 ar->fw_capabilities))
3814 addr[4] ^= 0x80;
3815 }
3816 eth_hw_addr_set(ndev, addr);
3817
3818 init_netdev(ndev);
3819
3820 ath6kl_init_control_info(vif);
3821
3822 if (ath6kl_cfg80211_vif_init(vif))
3823 goto err;
3824
3825 netdev_set_default_ethtool_ops(ndev, &ath6kl_ethtool_ops);
3826
3827 if (cfg80211_register_netdevice(ndev))
3828 goto err;
3829
3830 ar->avail_idx_map &= ~BIT(fw_vif_idx);
3831 vif->sme_state = SME_DISCONNECTED;
3832 set_bit(WLAN_ENABLED, &vif->flags);
3833 ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
3834
3835 if (type == NL80211_IFTYPE_ADHOC)
3836 ar->ibss_if_active = true;
3837
3838 spin_lock_bh(&ar->list_lock);
3839 list_add_tail(&vif->list, &ar->vif_list);
3840 spin_unlock_bh(&ar->list_lock);
3841
3842 return &vif->wdev;
3843
3844err:
3845 aggr_module_destroy(vif->aggr_cntxt);
3846 free_netdev(ndev);
3847 return NULL;
3848}
3849
3850#ifdef CONFIG_PM
3851static const struct wiphy_wowlan_support ath6kl_wowlan_support = {
3852 .flags = WIPHY_WOWLAN_MAGIC_PKT |
3853 WIPHY_WOWLAN_DISCONNECT |
3854 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
3855 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
3856 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
3857 WIPHY_WOWLAN_4WAY_HANDSHAKE,
3858 .n_patterns = WOW_MAX_FILTERS_PER_LIST,
3859 .pattern_min_len = 1,
3860 .pattern_max_len = WOW_PATTERN_SIZE,
3861};
3862#endif
3863
3864int ath6kl_cfg80211_init(struct ath6kl *ar)
3865{
3866 struct wiphy *wiphy = ar->wiphy;
3867 bool band_2gig = false, band_5gig = false, ht = false;
3868 int ret;
3869
3870 wiphy->mgmt_stypes = ath6kl_mgmt_stypes;
3871
3872 wiphy->max_remain_on_channel_duration = 5000;
3873
3874 /* set device pointer for wiphy */
3875 set_wiphy_dev(wiphy, ar->dev);
3876
3877 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3878 BIT(NL80211_IFTYPE_ADHOC) |
3879 BIT(NL80211_IFTYPE_AP);
3880 if (ar->p2p) {
3881 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) |
3882 BIT(NL80211_IFTYPE_P2P_CLIENT);
3883 }
3884
3885 if (IS_ENABLED(CONFIG_ATH6KL_REGDOMAIN) &&
3886 test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) {
3887 wiphy->reg_notifier = ath6kl_cfg80211_reg_notify;
3888 ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS;
3889 }
3890
3891 /* max num of ssids that can be probed during scanning */
3892 wiphy->max_scan_ssids = MAX_PROBED_SSIDS;
3893
3894 /* max num of ssids that can be matched after scan */
3895 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST,
3896 ar->fw_capabilities))
3897 wiphy->max_match_sets = MAX_PROBED_SSIDS;
3898
3899 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */
3900 switch (ar->hw.cap) {
3901 case WMI_11AN_CAP:
3902 ht = true;
3903 fallthrough;
3904 case WMI_11A_CAP:
3905 band_5gig = true;
3906 break;
3907 case WMI_11GN_CAP:
3908 ht = true;
3909 fallthrough;
3910 case WMI_11G_CAP:
3911 band_2gig = true;
3912 break;
3913 case WMI_11AGN_CAP:
3914 ht = true;
3915 fallthrough;
3916 case WMI_11AG_CAP:
3917 band_2gig = true;
3918 band_5gig = true;
3919 break;
3920 default:
3921 ath6kl_err("invalid phy capability!\n");
3922 return -EINVAL;
3923 }
3924
3925 /*
3926 * Even if the fw has HT support, advertise HT cap only when
3927 * the firmware has support to override RSN capability, otherwise
3928 * 4-way handshake would fail.
3929 */
3930 if (!(ht &&
3931 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
3932 ar->fw_capabilities))) {
3933 ath6kl_band_2ghz.ht_cap.cap = 0;
3934 ath6kl_band_2ghz.ht_cap.ht_supported = false;
3935 ath6kl_band_5ghz.ht_cap.cap = 0;
3936 ath6kl_band_5ghz.ht_cap.ht_supported = false;
3937
3938 if (ht)
3939 ath6kl_err("Firmware lacks RSN-CAP-OVERRIDE, so HT (802.11n) is disabled.");
3940 }
3941
3942 if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES,
3943 ar->fw_capabilities)) {
3944 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3945 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3946 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff;
3947 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff;
3948 ar->hw.tx_ant = 0x3; /* mask, 2 antenna */
3949 ar->hw.rx_ant = 0x3;
3950 } else {
3951 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3952 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3953 ar->hw.tx_ant = 1;
3954 ar->hw.rx_ant = 1;
3955 }
3956
3957 wiphy->available_antennas_tx = ar->hw.tx_ant;
3958 wiphy->available_antennas_rx = ar->hw.rx_ant;
3959
3960 if (band_2gig)
3961 wiphy->bands[NL80211_BAND_2GHZ] = &ath6kl_band_2ghz;
3962 if (band_5gig)
3963 wiphy->bands[NL80211_BAND_5GHZ] = &ath6kl_band_5ghz;
3964
3965 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3966
3967 wiphy->cipher_suites = cipher_suites;
3968 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
3969
3970#ifdef CONFIG_PM
3971 wiphy->wowlan = &ath6kl_wowlan_support;
3972#endif
3973
3974 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS;
3975
3976 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
3977 WIPHY_FLAG_HAVE_AP_SME |
3978 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3979 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
3980
3981 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities))
3982 ar->wiphy->max_sched_scan_reqs = 1;
3983
3984 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT,
3985 ar->fw_capabilities))
3986 ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;
3987
3988 ar->wiphy->probe_resp_offload =
3989 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3990 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3991 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3992
3993 ret = wiphy_register(wiphy);
3994 if (ret < 0) {
3995 ath6kl_err("couldn't register wiphy device\n");
3996 return ret;
3997 }
3998
3999 ar->wiphy_registered = true;
4000
4001 return 0;
4002}
4003
4004void ath6kl_cfg80211_cleanup(struct ath6kl *ar)
4005{
4006 wiphy_unregister(ar->wiphy);
4007
4008 ar->wiphy_registered = false;
4009}
4010
4011struct ath6kl *ath6kl_cfg80211_create(void)
4012{
4013 struct ath6kl *ar;
4014 struct wiphy *wiphy;
4015
4016 /* create a new wiphy for use with cfg80211 */
4017 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));
4018
4019 if (!wiphy) {
4020 ath6kl_err("couldn't allocate wiphy device\n");
4021 return NULL;
4022 }
4023
4024 ar = wiphy_priv(wiphy);
4025 ar->wiphy = wiphy;
4026
4027 return ar;
4028}
4029
4030/* Note: ar variable must not be accessed after calling this! */
4031void ath6kl_cfg80211_destroy(struct ath6kl *ar)
4032{
4033 int i;
4034
4035 for (i = 0; i < AP_MAX_NUM_STA; i++)
4036 kfree(ar->sta_list[i].aggr_conn);
4037
4038 wiphy_free(ar->wiphy);
4039}
4040
1/*
2 * Copyright (c) 2004-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
19
20#include <linux/moduleparam.h>
21#include <linux/inetdevice.h>
22#include <linux/export.h>
23
24#include "core.h"
25#include "cfg80211.h"
26#include "debug.h"
27#include "hif-ops.h"
28#include "testmode.h"
29
30#define RATETAB_ENT(_rate, _rateid, _flags) { \
31 .bitrate = (_rate), \
32 .flags = (_flags), \
33 .hw_value = (_rateid), \
34}
35
36#define CHAN2G(_channel, _freq, _flags) { \
37 .band = IEEE80211_BAND_2GHZ, \
38 .hw_value = (_channel), \
39 .center_freq = (_freq), \
40 .flags = (_flags), \
41 .max_antenna_gain = 0, \
42 .max_power = 30, \
43}
44
45#define CHAN5G(_channel, _flags) { \
46 .band = IEEE80211_BAND_5GHZ, \
47 .hw_value = (_channel), \
48 .center_freq = 5000 + (5 * (_channel)), \
49 .flags = (_flags), \
50 .max_antenna_gain = 0, \
51 .max_power = 30, \
52}
53
54#define DEFAULT_BG_SCAN_PERIOD 60
55
56struct ath6kl_cfg80211_match_probe_ssid {
57 struct cfg80211_ssid ssid;
58 u8 flag;
59};
60
61static struct ieee80211_rate ath6kl_rates[] = {
62 RATETAB_ENT(10, 0x1, 0),
63 RATETAB_ENT(20, 0x2, 0),
64 RATETAB_ENT(55, 0x4, 0),
65 RATETAB_ENT(110, 0x8, 0),
66 RATETAB_ENT(60, 0x10, 0),
67 RATETAB_ENT(90, 0x20, 0),
68 RATETAB_ENT(120, 0x40, 0),
69 RATETAB_ENT(180, 0x80, 0),
70 RATETAB_ENT(240, 0x100, 0),
71 RATETAB_ENT(360, 0x200, 0),
72 RATETAB_ENT(480, 0x400, 0),
73 RATETAB_ENT(540, 0x800, 0),
74};
75
76#define ath6kl_a_rates (ath6kl_rates + 4)
77#define ath6kl_a_rates_size 8
78#define ath6kl_g_rates (ath6kl_rates + 0)
79#define ath6kl_g_rates_size 12
80
81#define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20
82#define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \
83 IEEE80211_HT_CAP_SGI_20 | \
84 IEEE80211_HT_CAP_SGI_40)
85
86static struct ieee80211_channel ath6kl_2ghz_channels[] = {
87 CHAN2G(1, 2412, 0),
88 CHAN2G(2, 2417, 0),
89 CHAN2G(3, 2422, 0),
90 CHAN2G(4, 2427, 0),
91 CHAN2G(5, 2432, 0),
92 CHAN2G(6, 2437, 0),
93 CHAN2G(7, 2442, 0),
94 CHAN2G(8, 2447, 0),
95 CHAN2G(9, 2452, 0),
96 CHAN2G(10, 2457, 0),
97 CHAN2G(11, 2462, 0),
98 CHAN2G(12, 2467, 0),
99 CHAN2G(13, 2472, 0),
100 CHAN2G(14, 2484, 0),
101};
102
103static struct ieee80211_channel ath6kl_5ghz_a_channels[] = {
104 CHAN5G(34, 0), CHAN5G(36, 0),
105 CHAN5G(38, 0), CHAN5G(40, 0),
106 CHAN5G(42, 0), CHAN5G(44, 0),
107 CHAN5G(46, 0), CHAN5G(48, 0),
108 CHAN5G(52, 0), CHAN5G(56, 0),
109 CHAN5G(60, 0), CHAN5G(64, 0),
110 CHAN5G(100, 0), CHAN5G(104, 0),
111 CHAN5G(108, 0), CHAN5G(112, 0),
112 CHAN5G(116, 0), CHAN5G(120, 0),
113 CHAN5G(124, 0), CHAN5G(128, 0),
114 CHAN5G(132, 0), CHAN5G(136, 0),
115 CHAN5G(140, 0), CHAN5G(149, 0),
116 CHAN5G(153, 0), CHAN5G(157, 0),
117 CHAN5G(161, 0), CHAN5G(165, 0),
118 CHAN5G(184, 0), CHAN5G(188, 0),
119 CHAN5G(192, 0), CHAN5G(196, 0),
120 CHAN5G(200, 0), CHAN5G(204, 0),
121 CHAN5G(208, 0), CHAN5G(212, 0),
122 CHAN5G(216, 0),
123};
124
125static struct ieee80211_supported_band ath6kl_band_2ghz = {
126 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels),
127 .channels = ath6kl_2ghz_channels,
128 .n_bitrates = ath6kl_g_rates_size,
129 .bitrates = ath6kl_g_rates,
130 .ht_cap.cap = ath6kl_g_htcap,
131 .ht_cap.ht_supported = true,
132};
133
134static struct ieee80211_supported_band ath6kl_band_5ghz = {
135 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels),
136 .channels = ath6kl_5ghz_a_channels,
137 .n_bitrates = ath6kl_a_rates_size,
138 .bitrates = ath6kl_a_rates,
139 .ht_cap.cap = ath6kl_a_htcap,
140 .ht_cap.ht_supported = true,
141};
142
143#define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */
144
145/* returns true if scheduled scan was stopped */
146static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif)
147{
148 struct ath6kl *ar = vif->ar;
149
150 if (!test_and_clear_bit(SCHED_SCANNING, &vif->flags))
151 return false;
152
153 del_timer_sync(&vif->sched_scan_timer);
154
155 if (ar->state == ATH6KL_STATE_RECOVERY)
156 return true;
157
158 ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, false);
159
160 return true;
161}
162
163static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif)
164{
165 struct ath6kl *ar = vif->ar;
166 bool stopped;
167
168 stopped = __ath6kl_cfg80211_sscan_stop(vif);
169
170 if (!stopped)
171 return;
172
173 cfg80211_sched_scan_stopped(ar->wiphy);
174}
175
176static int ath6kl_set_wpa_version(struct ath6kl_vif *vif,
177 enum nl80211_wpa_versions wpa_version)
178{
179 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version);
180
181 if (!wpa_version) {
182 vif->auth_mode = NONE_AUTH;
183 } else if (wpa_version & NL80211_WPA_VERSION_2) {
184 vif->auth_mode = WPA2_AUTH;
185 } else if (wpa_version & NL80211_WPA_VERSION_1) {
186 vif->auth_mode = WPA_AUTH;
187 } else {
188 ath6kl_err("%s: %u not supported\n", __func__, wpa_version);
189 return -ENOTSUPP;
190 }
191
192 return 0;
193}
194
195static int ath6kl_set_auth_type(struct ath6kl_vif *vif,
196 enum nl80211_auth_type auth_type)
197{
198 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type);
199
200 switch (auth_type) {
201 case NL80211_AUTHTYPE_OPEN_SYSTEM:
202 vif->dot11_auth_mode = OPEN_AUTH;
203 break;
204 case NL80211_AUTHTYPE_SHARED_KEY:
205 vif->dot11_auth_mode = SHARED_AUTH;
206 break;
207 case NL80211_AUTHTYPE_NETWORK_EAP:
208 vif->dot11_auth_mode = LEAP_AUTH;
209 break;
210
211 case NL80211_AUTHTYPE_AUTOMATIC:
212 vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH;
213 break;
214
215 default:
216 ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type);
217 return -ENOTSUPP;
218 }
219
220 return 0;
221}
222
223static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast)
224{
225 u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto;
226 u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len :
227 &vif->grp_crypto_len;
228
229 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n",
230 __func__, cipher, ucast);
231
232 switch (cipher) {
233 case 0:
234 /* our own hack to use value 0 as no crypto used */
235 *ar_cipher = NONE_CRYPT;
236 *ar_cipher_len = 0;
237 break;
238 case WLAN_CIPHER_SUITE_WEP40:
239 *ar_cipher = WEP_CRYPT;
240 *ar_cipher_len = 5;
241 break;
242 case WLAN_CIPHER_SUITE_WEP104:
243 *ar_cipher = WEP_CRYPT;
244 *ar_cipher_len = 13;
245 break;
246 case WLAN_CIPHER_SUITE_TKIP:
247 *ar_cipher = TKIP_CRYPT;
248 *ar_cipher_len = 0;
249 break;
250 case WLAN_CIPHER_SUITE_CCMP:
251 *ar_cipher = AES_CRYPT;
252 *ar_cipher_len = 0;
253 break;
254 case WLAN_CIPHER_SUITE_SMS4:
255 *ar_cipher = WAPI_CRYPT;
256 *ar_cipher_len = 0;
257 break;
258 default:
259 ath6kl_err("cipher 0x%x not supported\n", cipher);
260 return -ENOTSUPP;
261 }
262
263 return 0;
264}
265
266static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt)
267{
268 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt);
269
270 if (key_mgmt == WLAN_AKM_SUITE_PSK) {
271 if (vif->auth_mode == WPA_AUTH)
272 vif->auth_mode = WPA_PSK_AUTH;
273 else if (vif->auth_mode == WPA2_AUTH)
274 vif->auth_mode = WPA2_PSK_AUTH;
275 } else if (key_mgmt == 0x00409600) {
276 if (vif->auth_mode == WPA_AUTH)
277 vif->auth_mode = WPA_AUTH_CCKM;
278 else if (vif->auth_mode == WPA2_AUTH)
279 vif->auth_mode = WPA2_AUTH_CCKM;
280 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) {
281 vif->auth_mode = NONE_AUTH;
282 }
283}
284
285static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif)
286{
287 struct ath6kl *ar = vif->ar;
288
289 if (!test_bit(WMI_READY, &ar->flag)) {
290 ath6kl_err("wmi is not ready\n");
291 return false;
292 }
293
294 if (!test_bit(WLAN_ENABLED, &vif->flags)) {
295 ath6kl_err("wlan disabled\n");
296 return false;
297 }
298
299 return true;
300}
301
302static bool ath6kl_is_wpa_ie(const u8 *pos)
303{
304 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
305 pos[2] == 0x00 && pos[3] == 0x50 &&
306 pos[4] == 0xf2 && pos[5] == 0x01;
307}
308
309static bool ath6kl_is_rsn_ie(const u8 *pos)
310{
311 return pos[0] == WLAN_EID_RSN;
312}
313
314static bool ath6kl_is_wps_ie(const u8 *pos)
315{
316 return (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
317 pos[1] >= 4 &&
318 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 &&
319 pos[5] == 0x04);
320}
321
322static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies,
323 size_t ies_len)
324{
325 struct ath6kl *ar = vif->ar;
326 const u8 *pos;
327 u8 *buf = NULL;
328 size_t len = 0;
329 int ret;
330
331 /*
332 * Clear previously set flag
333 */
334
335 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
336
337 /*
338 * Filter out RSN/WPA IE(s)
339 */
340
341 if (ies && ies_len) {
342 buf = kmalloc(ies_len, GFP_KERNEL);
343 if (buf == NULL)
344 return -ENOMEM;
345 pos = ies;
346
347 while (pos + 1 < ies + ies_len) {
348 if (pos + 2 + pos[1] > ies + ies_len)
349 break;
350 if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) {
351 memcpy(buf + len, pos, 2 + pos[1]);
352 len += 2 + pos[1];
353 }
354
355 if (ath6kl_is_wps_ie(pos))
356 ar->connect_ctrl_flags |= CONNECT_WPS_FLAG;
357
358 pos += 2 + pos[1];
359 }
360 }
361
362 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
363 WMI_FRAME_ASSOC_REQ, buf, len);
364 kfree(buf);
365 return ret;
366}
367
368static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type)
369{
370 switch (type) {
371 case NL80211_IFTYPE_STATION:
372 case NL80211_IFTYPE_P2P_CLIENT:
373 *nw_type = INFRA_NETWORK;
374 break;
375 case NL80211_IFTYPE_ADHOC:
376 *nw_type = ADHOC_NETWORK;
377 break;
378 case NL80211_IFTYPE_AP:
379 case NL80211_IFTYPE_P2P_GO:
380 *nw_type = AP_NETWORK;
381 break;
382 default:
383 ath6kl_err("invalid interface type %u\n", type);
384 return -ENOTSUPP;
385 }
386
387 return 0;
388}
389
390static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type,
391 u8 *if_idx, u8 *nw_type)
392{
393 int i;
394
395 if (ath6kl_nliftype_to_drv_iftype(type, nw_type))
396 return false;
397
398 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) &&
399 ar->num_vif))
400 return false;
401
402 if (type == NL80211_IFTYPE_STATION ||
403 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) {
404 for (i = 0; i < ar->vif_max; i++) {
405 if ((ar->avail_idx_map) & BIT(i)) {
406 *if_idx = i;
407 return true;
408 }
409 }
410 }
411
412 if (type == NL80211_IFTYPE_P2P_CLIENT ||
413 type == NL80211_IFTYPE_P2P_GO) {
414 for (i = ar->max_norm_iface; i < ar->vif_max; i++) {
415 if ((ar->avail_idx_map) & BIT(i)) {
416 *if_idx = i;
417 return true;
418 }
419 }
420 }
421
422 return false;
423}
424
425static bool ath6kl_is_tx_pending(struct ath6kl *ar)
426{
427 return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0;
428}
429
430static void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif,
431 bool enable)
432{
433 int err;
434
435 if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag)))
436 return;
437
438 if (vif->nw_type != INFRA_NETWORK)
439 return;
440
441 if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE,
442 vif->ar->fw_capabilities))
443 return;
444
445 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n",
446 enable ? "enable" : "disable");
447
448 err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi,
449 vif->fw_vif_idx, enable);
450 if (err)
451 ath6kl_err("failed to %s enhanced bmiss detection: %d\n",
452 enable ? "enable" : "disable", err);
453}
454
455static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
456 struct cfg80211_connect_params *sme)
457{
458 struct ath6kl *ar = ath6kl_priv(dev);
459 struct ath6kl_vif *vif = netdev_priv(dev);
460 int status;
461 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE;
462 u16 interval;
463
464 ath6kl_cfg80211_sscan_disable(vif);
465
466 vif->sme_state = SME_CONNECTING;
467
468 if (!ath6kl_cfg80211_ready(vif))
469 return -EIO;
470
471 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
472 ath6kl_err("destroy in progress\n");
473 return -EBUSY;
474 }
475
476 if (test_bit(SKIP_SCAN, &ar->flag) &&
477 ((sme->channel && sme->channel->center_freq == 0) ||
478 (sme->bssid && is_zero_ether_addr(sme->bssid)))) {
479 ath6kl_err("SkipScan: channel or bssid invalid\n");
480 return -EINVAL;
481 }
482
483 if (down_interruptible(&ar->sem)) {
484 ath6kl_err("busy, couldn't get access\n");
485 return -ERESTARTSYS;
486 }
487
488 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
489 ath6kl_err("busy, destroy in progress\n");
490 up(&ar->sem);
491 return -EBUSY;
492 }
493
494 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) {
495 /*
496 * sleep until the command queue drains
497 */
498 wait_event_interruptible_timeout(ar->event_wq,
499 ath6kl_is_tx_pending(ar),
500 WMI_TIMEOUT);
501 if (signal_pending(current)) {
502 ath6kl_err("cmd queue drain timeout\n");
503 up(&ar->sem);
504 return -EINTR;
505 }
506 }
507
508 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len);
509 if (status) {
510 up(&ar->sem);
511 return status;
512 }
513
514 if (sme->ie == NULL || sme->ie_len == 0)
515 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
516
517 if (test_bit(CONNECTED, &vif->flags) &&
518 vif->ssid_len == sme->ssid_len &&
519 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
520 vif->reconnect_flag = true;
521 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx,
522 vif->req_bssid,
523 vif->ch_hint);
524
525 up(&ar->sem);
526 if (status) {
527 ath6kl_err("wmi_reconnect_cmd failed\n");
528 return -EIO;
529 }
530 return 0;
531 } else if (vif->ssid_len == sme->ssid_len &&
532 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
533 ath6kl_disconnect(vif);
534 }
535
536 memset(vif->ssid, 0, sizeof(vif->ssid));
537 vif->ssid_len = sme->ssid_len;
538 memcpy(vif->ssid, sme->ssid, sme->ssid_len);
539
540 if (sme->channel)
541 vif->ch_hint = sme->channel->center_freq;
542
543 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
544 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid))
545 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid));
546
547 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions);
548
549 status = ath6kl_set_auth_type(vif, sme->auth_type);
550 if (status) {
551 up(&ar->sem);
552 return status;
553 }
554
555 if (sme->crypto.n_ciphers_pairwise)
556 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true);
557 else
558 ath6kl_set_cipher(vif, 0, true);
559
560 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false);
561
562 if (sme->crypto.n_akm_suites)
563 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]);
564
565 if ((sme->key_len) &&
566 (vif->auth_mode == NONE_AUTH) &&
567 (vif->prwise_crypto == WEP_CRYPT)) {
568 struct ath6kl_key *key = NULL;
569
570 if (sme->key_idx > WMI_MAX_KEY_INDEX) {
571 ath6kl_err("key index %d out of bounds\n",
572 sme->key_idx);
573 up(&ar->sem);
574 return -ENOENT;
575 }
576
577 key = &vif->keys[sme->key_idx];
578 key->key_len = sme->key_len;
579 memcpy(key->key, sme->key, key->key_len);
580 key->cipher = vif->prwise_crypto;
581 vif->def_txkey_index = sme->key_idx;
582
583 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx,
584 vif->prwise_crypto,
585 GROUP_USAGE | TX_USAGE,
586 key->key_len,
587 NULL, 0,
588 key->key, KEY_OP_INIT_VAL, NULL,
589 NO_SYNC_WMIFLAG);
590 }
591
592 if (!ar->usr_bss_filter) {
593 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
594 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
595 ALL_BSS_FILTER, 0) != 0) {
596 ath6kl_err("couldn't set bss filtering\n");
597 up(&ar->sem);
598 return -EIO;
599 }
600 }
601
602 vif->nw_type = vif->next_mode;
603
604 /* enable enhanced bmiss detection if applicable */
605 ath6kl_cfg80211_sta_bmiss_enhance(vif, true);
606
607 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT)
608 nw_subtype = SUBTYPE_P2PCLIENT;
609
610 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
611 "%s: connect called with authmode %d dot11 auth %d"
612 " PW crypto %d PW crypto len %d GRP crypto %d"
613 " GRP crypto len %d channel hint %u\n",
614 __func__,
615 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
616 vif->prwise_crypto_len, vif->grp_crypto,
617 vif->grp_crypto_len, vif->ch_hint);
618
619 vif->reconnect_flag = 0;
620
621 if (vif->nw_type == INFRA_NETWORK) {
622 interval = max_t(u16, vif->listen_intvl_t,
623 ATH6KL_MAX_WOW_LISTEN_INTL);
624 status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
625 interval,
626 0);
627 if (status) {
628 ath6kl_err("couldn't set listen intervel\n");
629 up(&ar->sem);
630 return status;
631 }
632 }
633
634 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
635 vif->dot11_auth_mode, vif->auth_mode,
636 vif->prwise_crypto,
637 vif->prwise_crypto_len,
638 vif->grp_crypto, vif->grp_crypto_len,
639 vif->ssid_len, vif->ssid,
640 vif->req_bssid, vif->ch_hint,
641 ar->connect_ctrl_flags, nw_subtype);
642
643 if (sme->bg_scan_period == 0) {
644 /* disable background scan if period is 0 */
645 sme->bg_scan_period = 0xffff;
646 } else if (sme->bg_scan_period == -1) {
647 /* configure default value if not specified */
648 sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
649 }
650
651 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0,
652 sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
653
654 up(&ar->sem);
655
656 if (status == -EINVAL) {
657 memset(vif->ssid, 0, sizeof(vif->ssid));
658 vif->ssid_len = 0;
659 ath6kl_err("invalid request\n");
660 return -ENOENT;
661 } else if (status) {
662 ath6kl_err("ath6kl_wmi_connect_cmd failed\n");
663 return -EIO;
664 }
665
666 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) &&
667 ((vif->auth_mode == WPA_PSK_AUTH) ||
668 (vif->auth_mode == WPA2_PSK_AUTH))) {
669 mod_timer(&vif->disconnect_timer,
670 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL));
671 }
672
673 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD;
674 set_bit(CONNECT_PEND, &vif->flags);
675
676 return 0;
677}
678
679static struct cfg80211_bss *
680ath6kl_add_bss_if_needed(struct ath6kl_vif *vif,
681 enum network_type nw_type,
682 const u8 *bssid,
683 struct ieee80211_channel *chan,
684 const u8 *beacon_ie,
685 size_t beacon_ie_len)
686{
687 struct ath6kl *ar = vif->ar;
688 struct cfg80211_bss *bss;
689 u16 cap_val;
690 enum ieee80211_bss_type bss_type;
691 u8 *ie;
692
693 if (nw_type & ADHOC_NETWORK) {
694 cap_val = WLAN_CAPABILITY_IBSS;
695 bss_type = IEEE80211_BSS_TYPE_IBSS;
696 } else {
697 cap_val = WLAN_CAPABILITY_ESS;
698 bss_type = IEEE80211_BSS_TYPE_ESS;
699 }
700
701 bss = cfg80211_get_bss(ar->wiphy, chan, bssid,
702 vif->ssid, vif->ssid_len,
703 bss_type, IEEE80211_PRIVACY_ANY);
704 if (bss == NULL) {
705 /*
706 * Since cfg80211 may not yet know about the BSS,
707 * generate a partial entry until the first BSS info
708 * event becomes available.
709 *
710 * Prepend SSID element since it is not included in the Beacon
711 * IEs from the target.
712 */
713 ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL);
714 if (ie == NULL)
715 return NULL;
716 ie[0] = WLAN_EID_SSID;
717 ie[1] = vif->ssid_len;
718 memcpy(ie + 2, vif->ssid, vif->ssid_len);
719 memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len);
720 bss = cfg80211_inform_bss(ar->wiphy, chan,
721 CFG80211_BSS_FTYPE_UNKNOWN,
722 bssid, 0, cap_val, 100,
723 ie, 2 + vif->ssid_len + beacon_ie_len,
724 0, GFP_KERNEL);
725 if (bss)
726 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
727 "added bss %pM to cfg80211\n", bssid);
728 kfree(ie);
729 } else {
730 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n");
731 }
732
733 return bss;
734}
735
736void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel,
737 u8 *bssid, u16 listen_intvl,
738 u16 beacon_intvl,
739 enum network_type nw_type,
740 u8 beacon_ie_len, u8 assoc_req_len,
741 u8 assoc_resp_len, u8 *assoc_info)
742{
743 struct ieee80211_channel *chan;
744 struct ath6kl *ar = vif->ar;
745 struct cfg80211_bss *bss;
746
747 /* capinfo + listen interval */
748 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16);
749
750 /* capinfo + status code + associd */
751 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16);
752
753 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset;
754 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len +
755 assoc_resp_ie_offset;
756
757 assoc_req_len -= assoc_req_ie_offset;
758 assoc_resp_len -= assoc_resp_ie_offset;
759
760 /*
761 * Store Beacon interval here; DTIM period will be available only once
762 * a Beacon frame from the AP is seen.
763 */
764 vif->assoc_bss_beacon_int = beacon_intvl;
765 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags);
766
767 if (nw_type & ADHOC_NETWORK) {
768 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) {
769 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
770 "%s: ath6k not in ibss mode\n", __func__);
771 return;
772 }
773 }
774
775 if (nw_type & INFRA_NETWORK) {
776 if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
777 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
778 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
779 "%s: ath6k not in station mode\n", __func__);
780 return;
781 }
782 }
783
784 chan = ieee80211_get_channel(ar->wiphy, (int) channel);
785
786 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan,
787 assoc_info, beacon_ie_len);
788 if (!bss) {
789 ath6kl_err("could not add cfg80211 bss entry\n");
790 return;
791 }
792
793 if (nw_type & ADHOC_NETWORK) {
794 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n",
795 nw_type & ADHOC_CREATOR ? "creator" : "joiner");
796 cfg80211_ibss_joined(vif->ndev, bssid, chan, GFP_KERNEL);
797 cfg80211_put_bss(ar->wiphy, bss);
798 return;
799 }
800
801 if (vif->sme_state == SME_CONNECTING) {
802 /* inform connect result to cfg80211 */
803 vif->sme_state = SME_CONNECTED;
804 cfg80211_connect_result(vif->ndev, bssid,
805 assoc_req_ie, assoc_req_len,
806 assoc_resp_ie, assoc_resp_len,
807 WLAN_STATUS_SUCCESS, GFP_KERNEL);
808 cfg80211_put_bss(ar->wiphy, bss);
809 } else if (vif->sme_state == SME_CONNECTED) {
810 /* inform roam event to cfg80211 */
811 cfg80211_roamed_bss(vif->ndev, bss, assoc_req_ie, assoc_req_len,
812 assoc_resp_ie, assoc_resp_len, GFP_KERNEL);
813 }
814}
815
816static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy,
817 struct net_device *dev, u16 reason_code)
818{
819 struct ath6kl *ar = ath6kl_priv(dev);
820 struct ath6kl_vif *vif = netdev_priv(dev);
821
822 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__,
823 reason_code);
824
825 ath6kl_cfg80211_sscan_disable(vif);
826
827 if (!ath6kl_cfg80211_ready(vif))
828 return -EIO;
829
830 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
831 ath6kl_err("busy, destroy in progress\n");
832 return -EBUSY;
833 }
834
835 if (down_interruptible(&ar->sem)) {
836 ath6kl_err("busy, couldn't get access\n");
837 return -ERESTARTSYS;
838 }
839
840 vif->reconnect_flag = 0;
841 ath6kl_disconnect(vif);
842 memset(vif->ssid, 0, sizeof(vif->ssid));
843 vif->ssid_len = 0;
844
845 if (!test_bit(SKIP_SCAN, &ar->flag))
846 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
847
848 up(&ar->sem);
849
850 vif->sme_state = SME_DISCONNECTED;
851
852 return 0;
853}
854
855void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason,
856 u8 *bssid, u8 assoc_resp_len,
857 u8 *assoc_info, u16 proto_reason)
858{
859 struct ath6kl *ar = vif->ar;
860
861 if (vif->scan_req) {
862 cfg80211_scan_done(vif->scan_req, true);
863 vif->scan_req = NULL;
864 }
865
866 if (vif->nw_type & ADHOC_NETWORK) {
867 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC)
868 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
869 "%s: ath6k not in ibss mode\n", __func__);
870 return;
871 }
872
873 if (vif->nw_type & INFRA_NETWORK) {
874 if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
875 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
876 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
877 "%s: ath6k not in station mode\n", __func__);
878 return;
879 }
880 }
881
882 clear_bit(CONNECT_PEND, &vif->flags);
883
884 if (vif->sme_state == SME_CONNECTING) {
885 cfg80211_connect_result(vif->ndev,
886 bssid, NULL, 0,
887 NULL, 0,
888 WLAN_STATUS_UNSPECIFIED_FAILURE,
889 GFP_KERNEL);
890 } else if (vif->sme_state == SME_CONNECTED) {
891 cfg80211_disconnected(vif->ndev, proto_reason,
892 NULL, 0, false, GFP_KERNEL);
893 }
894
895 vif->sme_state = SME_DISCONNECTED;
896
897 /*
898 * Send a disconnect command to target when a disconnect event is
899 * received with reason code other than 3 (DISCONNECT_CMD - disconnect
900 * request from host) to make the firmware stop trying to connect even
901 * after giving disconnect event. There will be one more disconnect
902 * event for this disconnect command with reason code DISCONNECT_CMD
903 * which won't be notified to cfg80211.
904 */
905 if (reason != DISCONNECT_CMD)
906 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
907}
908
909static int ath6kl_set_probed_ssids(struct ath6kl *ar,
910 struct ath6kl_vif *vif,
911 struct cfg80211_ssid *ssids, int n_ssids,
912 struct cfg80211_match_set *match_set,
913 int n_match_ssid)
914{
915 u8 i, j, index_to_add, ssid_found = false;
916 struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS];
917
918 memset(ssid_list, 0, sizeof(ssid_list));
919
920 if (n_ssids > MAX_PROBED_SSIDS ||
921 n_match_ssid > MAX_PROBED_SSIDS)
922 return -EINVAL;
923
924 for (i = 0; i < n_ssids; i++) {
925 memcpy(ssid_list[i].ssid.ssid,
926 ssids[i].ssid,
927 ssids[i].ssid_len);
928 ssid_list[i].ssid.ssid_len = ssids[i].ssid_len;
929
930 if (ssids[i].ssid_len)
931 ssid_list[i].flag = SPECIFIC_SSID_FLAG;
932 else
933 ssid_list[i].flag = ANY_SSID_FLAG;
934
935 if (n_match_ssid == 0)
936 ssid_list[i].flag |= MATCH_SSID_FLAG;
937 }
938
939 index_to_add = i;
940
941 for (i = 0; i < n_match_ssid; i++) {
942 ssid_found = false;
943
944 for (j = 0; j < n_ssids; j++) {
945 if ((match_set[i].ssid.ssid_len ==
946 ssid_list[j].ssid.ssid_len) &&
947 (!memcmp(ssid_list[j].ssid.ssid,
948 match_set[i].ssid.ssid,
949 match_set[i].ssid.ssid_len))) {
950 ssid_list[j].flag |= MATCH_SSID_FLAG;
951 ssid_found = true;
952 break;
953 }
954 }
955
956 if (ssid_found)
957 continue;
958
959 if (index_to_add >= MAX_PROBED_SSIDS)
960 continue;
961
962 ssid_list[index_to_add].ssid.ssid_len =
963 match_set[i].ssid.ssid_len;
964 memcpy(ssid_list[index_to_add].ssid.ssid,
965 match_set[i].ssid.ssid,
966 match_set[i].ssid.ssid_len);
967 ssid_list[index_to_add].flag |= MATCH_SSID_FLAG;
968 index_to_add++;
969 }
970
971 for (i = 0; i < index_to_add; i++) {
972 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i,
973 ssid_list[i].flag,
974 ssid_list[i].ssid.ssid_len,
975 ssid_list[i].ssid.ssid);
976 }
977
978 /* Make sure no old entries are left behind */
979 for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) {
980 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i,
981 DISABLE_SSID_FLAG, 0, NULL);
982 }
983
984 return 0;
985}
986
987static int ath6kl_cfg80211_scan(struct wiphy *wiphy,
988 struct cfg80211_scan_request *request)
989{
990 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev);
991 struct ath6kl *ar = ath6kl_priv(vif->ndev);
992 s8 n_channels = 0;
993 u16 *channels = NULL;
994 int ret = 0;
995 u32 force_fg_scan = 0;
996
997 if (!ath6kl_cfg80211_ready(vif))
998 return -EIO;
999
1000 ath6kl_cfg80211_sscan_disable(vif);
1001
1002 if (!ar->usr_bss_filter) {
1003 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
1004 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1005 ALL_BSS_FILTER, 0);
1006 if (ret) {
1007 ath6kl_err("couldn't set bss filtering\n");
1008 return ret;
1009 }
1010 }
1011
1012 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
1013 request->n_ssids, NULL, 0);
1014 if (ret < 0)
1015 return ret;
1016
1017 /* this also clears IE in fw if it's not set */
1018 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
1019 WMI_FRAME_PROBE_REQ,
1020 request->ie, request->ie_len);
1021 if (ret) {
1022 ath6kl_err("failed to set Probe Request appie for scan\n");
1023 return ret;
1024 }
1025
1026 /*
1027 * Scan only the requested channels if the request specifies a set of
1028 * channels. If the list is longer than the target supports, do not
1029 * configure the list and instead, scan all available channels.
1030 */
1031 if (request->n_channels > 0 &&
1032 request->n_channels <= WMI_MAX_CHANNELS) {
1033 u8 i;
1034
1035 n_channels = request->n_channels;
1036
1037 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL);
1038 if (channels == NULL) {
1039 ath6kl_warn("failed to set scan channels, scan all channels");
1040 n_channels = 0;
1041 }
1042
1043 for (i = 0; i < n_channels; i++)
1044 channels[i] = request->channels[i]->center_freq;
1045 }
1046
1047 if (test_bit(CONNECTED, &vif->flags))
1048 force_fg_scan = 1;
1049
1050 vif->scan_req = request;
1051
1052 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx,
1053 WMI_LONG_SCAN, force_fg_scan,
1054 false, 0,
1055 ATH6KL_FG_SCAN_INTERVAL,
1056 n_channels, channels,
1057 request->no_cck,
1058 request->rates);
1059 if (ret) {
1060 ath6kl_err("failed to start scan: %d\n", ret);
1061 vif->scan_req = NULL;
1062 }
1063
1064 kfree(channels);
1065
1066 return ret;
1067}
1068
1069void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted)
1070{
1071 struct ath6kl *ar = vif->ar;
1072 int i;
1073
1074 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__,
1075 aborted ? " aborted" : "");
1076
1077 if (!vif->scan_req)
1078 return;
1079
1080 if (aborted)
1081 goto out;
1082
1083 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) {
1084 for (i = 0; i < vif->scan_req->n_ssids; i++) {
1085 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
1086 i + 1, DISABLE_SSID_FLAG,
1087 0, NULL);
1088 }
1089 }
1090
1091out:
1092 cfg80211_scan_done(vif->scan_req, aborted);
1093 vif->scan_req = NULL;
1094}
1095
1096void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq,
1097 enum wmi_phy_mode mode)
1098{
1099 struct cfg80211_chan_def chandef;
1100
1101 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1102 "channel switch notify nw_type %d freq %d mode %d\n",
1103 vif->nw_type, freq, mode);
1104
1105 cfg80211_chandef_create(&chandef,
1106 ieee80211_get_channel(vif->ar->wiphy, freq),
1107 (mode == WMI_11G_HT20) ?
1108 NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT);
1109
1110 mutex_lock(&vif->wdev.mtx);
1111 cfg80211_ch_switch_notify(vif->ndev, &chandef);
1112 mutex_unlock(&vif->wdev.mtx);
1113}
1114
1115static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
1116 u8 key_index, bool pairwise,
1117 const u8 *mac_addr,
1118 struct key_params *params)
1119{
1120 struct ath6kl *ar = ath6kl_priv(ndev);
1121 struct ath6kl_vif *vif = netdev_priv(ndev);
1122 struct ath6kl_key *key = NULL;
1123 int seq_len;
1124 u8 key_usage;
1125 u8 key_type;
1126
1127 if (!ath6kl_cfg80211_ready(vif))
1128 return -EIO;
1129
1130 if (params->cipher == CCKM_KRK_CIPHER_SUITE) {
1131 if (params->key_len != WMI_KRK_LEN)
1132 return -EINVAL;
1133 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx,
1134 params->key);
1135 }
1136
1137 if (key_index > WMI_MAX_KEY_INDEX) {
1138 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1139 "%s: key index %d out of bounds\n", __func__,
1140 key_index);
1141 return -ENOENT;
1142 }
1143
1144 key = &vif->keys[key_index];
1145 memset(key, 0, sizeof(struct ath6kl_key));
1146
1147 if (pairwise)
1148 key_usage = PAIRWISE_USAGE;
1149 else
1150 key_usage = GROUP_USAGE;
1151
1152 seq_len = params->seq_len;
1153 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 &&
1154 seq_len > ATH6KL_KEY_SEQ_LEN) {
1155 /* Only first half of the WPI PN is configured */
1156 seq_len = ATH6KL_KEY_SEQ_LEN;
1157 }
1158 if (params->key_len > WLAN_MAX_KEY_LEN ||
1159 seq_len > sizeof(key->seq))
1160 return -EINVAL;
1161
1162 key->key_len = params->key_len;
1163 memcpy(key->key, params->key, key->key_len);
1164 key->seq_len = seq_len;
1165 memcpy(key->seq, params->seq, key->seq_len);
1166 key->cipher = params->cipher;
1167
1168 switch (key->cipher) {
1169 case WLAN_CIPHER_SUITE_WEP40:
1170 case WLAN_CIPHER_SUITE_WEP104:
1171 key_type = WEP_CRYPT;
1172 break;
1173
1174 case WLAN_CIPHER_SUITE_TKIP:
1175 key_type = TKIP_CRYPT;
1176 break;
1177
1178 case WLAN_CIPHER_SUITE_CCMP:
1179 key_type = AES_CRYPT;
1180 break;
1181 case WLAN_CIPHER_SUITE_SMS4:
1182 key_type = WAPI_CRYPT;
1183 break;
1184
1185 default:
1186 return -ENOTSUPP;
1187 }
1188
1189 if (((vif->auth_mode == WPA_PSK_AUTH) ||
1190 (vif->auth_mode == WPA2_PSK_AUTH)) &&
1191 (key_usage & GROUP_USAGE))
1192 del_timer(&vif->disconnect_timer);
1193
1194 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1195 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n",
1196 __func__, key_index, key->key_len, key_type,
1197 key_usage, key->seq_len);
1198
1199 if (vif->nw_type == AP_NETWORK && !pairwise &&
1200 (key_type == TKIP_CRYPT || key_type == AES_CRYPT ||
1201 key_type == WAPI_CRYPT)) {
1202 ar->ap_mode_bkey.valid = true;
1203 ar->ap_mode_bkey.key_index = key_index;
1204 ar->ap_mode_bkey.key_type = key_type;
1205 ar->ap_mode_bkey.key_len = key->key_len;
1206 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len);
1207 if (!test_bit(CONNECTED, &vif->flags)) {
1208 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1209 "Delay initial group key configuration until AP mode has been started\n");
1210 /*
1211 * The key will be set in ath6kl_connect_ap_mode() once
1212 * the connected event is received from the target.
1213 */
1214 return 0;
1215 }
1216 }
1217
1218 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT &&
1219 !test_bit(CONNECTED, &vif->flags)) {
1220 /*
1221 * Store the key locally so that it can be re-configured after
1222 * the AP mode has properly started
1223 * (ath6kl_install_statioc_wep_keys).
1224 */
1225 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1226 "Delay WEP key configuration until AP mode has been started\n");
1227 vif->wep_key_list[key_index].key_len = key->key_len;
1228 memcpy(vif->wep_key_list[key_index].key, key->key,
1229 key->key_len);
1230 return 0;
1231 }
1232
1233 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index,
1234 key_type, key_usage, key->key_len,
1235 key->seq, key->seq_len, key->key,
1236 KEY_OP_INIT_VAL,
1237 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG);
1238}
1239
1240static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
1241 u8 key_index, bool pairwise,
1242 const u8 *mac_addr)
1243{
1244 struct ath6kl *ar = ath6kl_priv(ndev);
1245 struct ath6kl_vif *vif = netdev_priv(ndev);
1246
1247 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1248
1249 if (!ath6kl_cfg80211_ready(vif))
1250 return -EIO;
1251
1252 if (key_index > WMI_MAX_KEY_INDEX) {
1253 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1254 "%s: key index %d out of bounds\n", __func__,
1255 key_index);
1256 return -ENOENT;
1257 }
1258
1259 if (!vif->keys[key_index].key_len) {
1260 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1261 "%s: index %d is empty\n", __func__, key_index);
1262 return 0;
1263 }
1264
1265 vif->keys[key_index].key_len = 0;
1266
1267 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index);
1268}
1269
1270static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
1271 u8 key_index, bool pairwise,
1272 const u8 *mac_addr, void *cookie,
1273 void (*callback) (void *cookie,
1274 struct key_params *))
1275{
1276 struct ath6kl_vif *vif = netdev_priv(ndev);
1277 struct ath6kl_key *key = NULL;
1278 struct key_params params;
1279
1280 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1281
1282 if (!ath6kl_cfg80211_ready(vif))
1283 return -EIO;
1284
1285 if (key_index > WMI_MAX_KEY_INDEX) {
1286 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1287 "%s: key index %d out of bounds\n", __func__,
1288 key_index);
1289 return -ENOENT;
1290 }
1291
1292 key = &vif->keys[key_index];
1293 memset(¶ms, 0, sizeof(params));
1294 params.cipher = key->cipher;
1295 params.key_len = key->key_len;
1296 params.seq_len = key->seq_len;
1297 params.seq = key->seq;
1298 params.key = key->key;
1299
1300 callback(cookie, ¶ms);
1301
1302 return key->key_len ? 0 : -ENOENT;
1303}
1304
1305static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy,
1306 struct net_device *ndev,
1307 u8 key_index, bool unicast,
1308 bool multicast)
1309{
1310 struct ath6kl *ar = ath6kl_priv(ndev);
1311 struct ath6kl_vif *vif = netdev_priv(ndev);
1312 struct ath6kl_key *key = NULL;
1313 u8 key_usage;
1314 enum crypto_type key_type = NONE_CRYPT;
1315
1316 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1317
1318 if (!ath6kl_cfg80211_ready(vif))
1319 return -EIO;
1320
1321 if (key_index > WMI_MAX_KEY_INDEX) {
1322 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1323 "%s: key index %d out of bounds\n",
1324 __func__, key_index);
1325 return -ENOENT;
1326 }
1327
1328 if (!vif->keys[key_index].key_len) {
1329 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n",
1330 __func__, key_index);
1331 return -EINVAL;
1332 }
1333
1334 vif->def_txkey_index = key_index;
1335 key = &vif->keys[vif->def_txkey_index];
1336 key_usage = GROUP_USAGE;
1337 if (vif->prwise_crypto == WEP_CRYPT)
1338 key_usage |= TX_USAGE;
1339 if (unicast)
1340 key_type = vif->prwise_crypto;
1341 if (multicast)
1342 key_type = vif->grp_crypto;
1343
1344 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags))
1345 return 0; /* Delay until AP mode has been started */
1346
1347 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx,
1348 vif->def_txkey_index,
1349 key_type, key_usage,
1350 key->key_len, key->seq, key->seq_len,
1351 key->key,
1352 KEY_OP_INIT_VAL, NULL,
1353 SYNC_BOTH_WMIFLAG);
1354}
1355
1356void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid,
1357 bool ismcast)
1358{
1359 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1360 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast);
1361
1362 cfg80211_michael_mic_failure(vif->ndev, vif->bssid,
1363 (ismcast ? NL80211_KEYTYPE_GROUP :
1364 NL80211_KEYTYPE_PAIRWISE), keyid, NULL,
1365 GFP_KERNEL);
1366}
1367
1368static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1369{
1370 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1371 struct ath6kl_vif *vif;
1372 int ret;
1373
1374 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__,
1375 changed);
1376
1377 vif = ath6kl_vif_first(ar);
1378 if (!vif)
1379 return -EIO;
1380
1381 if (!ath6kl_cfg80211_ready(vif))
1382 return -EIO;
1383
1384 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1385 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold);
1386 if (ret != 0) {
1387 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n");
1388 return -EIO;
1389 }
1390 }
1391
1392 return 0;
1393}
1394
1395static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy,
1396 struct wireless_dev *wdev,
1397 enum nl80211_tx_power_setting type,
1398 int mbm)
1399{
1400 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1401 struct ath6kl_vif *vif;
1402 int dbm = MBM_TO_DBM(mbm);
1403
1404 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__,
1405 type, dbm);
1406
1407 vif = ath6kl_vif_first(ar);
1408 if (!vif)
1409 return -EIO;
1410
1411 if (!ath6kl_cfg80211_ready(vif))
1412 return -EIO;
1413
1414 switch (type) {
1415 case NL80211_TX_POWER_AUTOMATIC:
1416 return 0;
1417 case NL80211_TX_POWER_LIMITED:
1418 ar->tx_pwr = dbm;
1419 break;
1420 default:
1421 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n",
1422 __func__, type);
1423 return -EOPNOTSUPP;
1424 }
1425
1426 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm);
1427
1428 return 0;
1429}
1430
1431static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy,
1432 struct wireless_dev *wdev,
1433 int *dbm)
1434{
1435 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1436 struct ath6kl_vif *vif;
1437
1438 vif = ath6kl_vif_first(ar);
1439 if (!vif)
1440 return -EIO;
1441
1442 if (!ath6kl_cfg80211_ready(vif))
1443 return -EIO;
1444
1445 if (test_bit(CONNECTED, &vif->flags)) {
1446 ar->tx_pwr = 0;
1447
1448 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) {
1449 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n");
1450 return -EIO;
1451 }
1452
1453 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0,
1454 5 * HZ);
1455
1456 if (signal_pending(current)) {
1457 ath6kl_err("target did not respond\n");
1458 return -EINTR;
1459 }
1460 }
1461
1462 *dbm = ar->tx_pwr;
1463 return 0;
1464}
1465
1466static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
1467 struct net_device *dev,
1468 bool pmgmt, int timeout)
1469{
1470 struct ath6kl *ar = ath6kl_priv(dev);
1471 struct wmi_power_mode_cmd mode;
1472 struct ath6kl_vif *vif = netdev_priv(dev);
1473
1474 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",
1475 __func__, pmgmt, timeout);
1476
1477 if (!ath6kl_cfg80211_ready(vif))
1478 return -EIO;
1479
1480 if (pmgmt) {
1481 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);
1482 mode.pwr_mode = REC_POWER;
1483 } else {
1484 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);
1485 mode.pwr_mode = MAX_PERF_POWER;
1486 }
1487
1488 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx,
1489 mode.pwr_mode) != 0) {
1490 ath6kl_err("wmi_powermode_cmd failed\n");
1491 return -EIO;
1492 }
1493
1494 return 0;
1495}
1496
1497static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy,
1498 const char *name,
1499 unsigned char name_assign_type,
1500 enum nl80211_iftype type,
1501 u32 *flags,
1502 struct vif_params *params)
1503{
1504 struct ath6kl *ar = wiphy_priv(wiphy);
1505 struct wireless_dev *wdev;
1506 u8 if_idx, nw_type;
1507
1508 if (ar->num_vif == ar->vif_max) {
1509 ath6kl_err("Reached maximum number of supported vif\n");
1510 return ERR_PTR(-EINVAL);
1511 }
1512
1513 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) {
1514 ath6kl_err("Not a supported interface type\n");
1515 return ERR_PTR(-EINVAL);
1516 }
1517
1518 wdev = ath6kl_interface_add(ar, name, name_assign_type, type, if_idx, nw_type);
1519 if (!wdev)
1520 return ERR_PTR(-ENOMEM);
1521
1522 ar->num_vif++;
1523
1524 return wdev;
1525}
1526
1527static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy,
1528 struct wireless_dev *wdev)
1529{
1530 struct ath6kl *ar = wiphy_priv(wiphy);
1531 struct ath6kl_vif *vif = netdev_priv(wdev->netdev);
1532
1533 spin_lock_bh(&ar->list_lock);
1534 list_del(&vif->list);
1535 spin_unlock_bh(&ar->list_lock);
1536
1537 ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag));
1538
1539 rtnl_lock();
1540 ath6kl_cfg80211_vif_cleanup(vif);
1541 rtnl_unlock();
1542
1543 return 0;
1544}
1545
1546static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
1547 struct net_device *ndev,
1548 enum nl80211_iftype type, u32 *flags,
1549 struct vif_params *params)
1550{
1551 struct ath6kl_vif *vif = netdev_priv(ndev);
1552 int i;
1553
1554 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
1555
1556 /*
1557 * Don't bring up p2p on an interface which is not initialized
1558 * for p2p operation where fw does not have capability to switch
1559 * dynamically between non-p2p and p2p type interface.
1560 */
1561 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
1562 vif->ar->fw_capabilities) &&
1563 (type == NL80211_IFTYPE_P2P_CLIENT ||
1564 type == NL80211_IFTYPE_P2P_GO)) {
1565 if (vif->ar->vif_max == 1) {
1566 if (vif->fw_vif_idx != 0)
1567 return -EINVAL;
1568 else
1569 goto set_iface_type;
1570 }
1571
1572 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) {
1573 if (i == vif->fw_vif_idx)
1574 break;
1575 }
1576
1577 if (i == vif->ar->vif_max) {
1578 ath6kl_err("Invalid interface to bring up P2P\n");
1579 return -EINVAL;
1580 }
1581 }
1582
1583 /* need to clean up enhanced bmiss detection fw state */
1584 ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
1585
1586set_iface_type:
1587 switch (type) {
1588 case NL80211_IFTYPE_STATION:
1589 case NL80211_IFTYPE_P2P_CLIENT:
1590 vif->next_mode = INFRA_NETWORK;
1591 break;
1592 case NL80211_IFTYPE_ADHOC:
1593 vif->next_mode = ADHOC_NETWORK;
1594 break;
1595 case NL80211_IFTYPE_AP:
1596 case NL80211_IFTYPE_P2P_GO:
1597 vif->next_mode = AP_NETWORK;
1598 break;
1599 default:
1600 ath6kl_err("invalid interface type %u\n", type);
1601 return -EOPNOTSUPP;
1602 }
1603
1604 vif->wdev.iftype = type;
1605
1606 return 0;
1607}
1608
1609static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,
1610 struct net_device *dev,
1611 struct cfg80211_ibss_params *ibss_param)
1612{
1613 struct ath6kl *ar = ath6kl_priv(dev);
1614 struct ath6kl_vif *vif = netdev_priv(dev);
1615 int status;
1616
1617 if (!ath6kl_cfg80211_ready(vif))
1618 return -EIO;
1619
1620 vif->ssid_len = ibss_param->ssid_len;
1621 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len);
1622
1623 if (ibss_param->chandef.chan)
1624 vif->ch_hint = ibss_param->chandef.chan->center_freq;
1625
1626 if (ibss_param->channel_fixed) {
1627 /*
1628 * TODO: channel_fixed: The channel should be fixed, do not
1629 * search for IBSSs to join on other channels. Target
1630 * firmware does not support this feature, needs to be
1631 * updated.
1632 */
1633 return -EOPNOTSUPP;
1634 }
1635
1636 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
1637 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))
1638 memcpy(vif->req_bssid, ibss_param->bssid,
1639 sizeof(vif->req_bssid));
1640
1641 ath6kl_set_wpa_version(vif, 0);
1642
1643 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM);
1644 if (status)
1645 return status;
1646
1647 if (ibss_param->privacy) {
1648 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true);
1649 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false);
1650 } else {
1651 ath6kl_set_cipher(vif, 0, true);
1652 ath6kl_set_cipher(vif, 0, false);
1653 }
1654
1655 vif->nw_type = vif->next_mode;
1656
1657 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1658 "%s: connect called with authmode %d dot11 auth %d"
1659 " PW crypto %d PW crypto len %d GRP crypto %d"
1660 " GRP crypto len %d channel hint %u\n",
1661 __func__,
1662 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
1663 vif->prwise_crypto_len, vif->grp_crypto,
1664 vif->grp_crypto_len, vif->ch_hint);
1665
1666 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
1667 vif->dot11_auth_mode, vif->auth_mode,
1668 vif->prwise_crypto,
1669 vif->prwise_crypto_len,
1670 vif->grp_crypto, vif->grp_crypto_len,
1671 vif->ssid_len, vif->ssid,
1672 vif->req_bssid, vif->ch_hint,
1673 ar->connect_ctrl_flags, SUBTYPE_NONE);
1674 set_bit(CONNECT_PEND, &vif->flags);
1675
1676 return 0;
1677}
1678
1679static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,
1680 struct net_device *dev)
1681{
1682 struct ath6kl_vif *vif = netdev_priv(dev);
1683
1684 if (!ath6kl_cfg80211_ready(vif))
1685 return -EIO;
1686
1687 ath6kl_disconnect(vif);
1688 memset(vif->ssid, 0, sizeof(vif->ssid));
1689 vif->ssid_len = 0;
1690
1691 return 0;
1692}
1693
1694static const u32 cipher_suites[] = {
1695 WLAN_CIPHER_SUITE_WEP40,
1696 WLAN_CIPHER_SUITE_WEP104,
1697 WLAN_CIPHER_SUITE_TKIP,
1698 WLAN_CIPHER_SUITE_CCMP,
1699 CCKM_KRK_CIPHER_SUITE,
1700 WLAN_CIPHER_SUITE_SMS4,
1701};
1702
1703static bool is_rate_legacy(s32 rate)
1704{
1705 static const s32 legacy[] = { 1000, 2000, 5500, 11000,
1706 6000, 9000, 12000, 18000, 24000,
1707 36000, 48000, 54000
1708 };
1709 u8 i;
1710
1711 for (i = 0; i < ARRAY_SIZE(legacy); i++)
1712 if (rate == legacy[i])
1713 return true;
1714
1715 return false;
1716}
1717
1718static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
1719{
1720 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
1721 52000, 58500, 65000, 72200
1722 };
1723 u8 i;
1724
1725 for (i = 0; i < ARRAY_SIZE(ht20); i++) {
1726 if (rate == ht20[i]) {
1727 if (i == ARRAY_SIZE(ht20) - 1)
1728 /* last rate uses sgi */
1729 *sgi = true;
1730 else
1731 *sgi = false;
1732
1733 *mcs = i;
1734 return true;
1735 }
1736 }
1737 return false;
1738}
1739
1740static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
1741{
1742 static const s32 ht40[] = { 13500, 27000, 40500, 54000,
1743 81000, 108000, 121500, 135000,
1744 150000
1745 };
1746 u8 i;
1747
1748 for (i = 0; i < ARRAY_SIZE(ht40); i++) {
1749 if (rate == ht40[i]) {
1750 if (i == ARRAY_SIZE(ht40) - 1)
1751 /* last rate uses sgi */
1752 *sgi = true;
1753 else
1754 *sgi = false;
1755
1756 *mcs = i;
1757 return true;
1758 }
1759 }
1760
1761 return false;
1762}
1763
1764static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,
1765 const u8 *mac, struct station_info *sinfo)
1766{
1767 struct ath6kl *ar = ath6kl_priv(dev);
1768 struct ath6kl_vif *vif = netdev_priv(dev);
1769 long left;
1770 bool sgi;
1771 s32 rate;
1772 int ret;
1773 u8 mcs;
1774
1775 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0)
1776 return -ENOENT;
1777
1778 if (down_interruptible(&ar->sem))
1779 return -EBUSY;
1780
1781 set_bit(STATS_UPDATE_PEND, &vif->flags);
1782
1783 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx);
1784
1785 if (ret != 0) {
1786 up(&ar->sem);
1787 return -EIO;
1788 }
1789
1790 left = wait_event_interruptible_timeout(ar->event_wq,
1791 !test_bit(STATS_UPDATE_PEND,
1792 &vif->flags),
1793 WMI_TIMEOUT);
1794
1795 up(&ar->sem);
1796
1797 if (left == 0)
1798 return -ETIMEDOUT;
1799 else if (left < 0)
1800 return left;
1801
1802 if (vif->target_stats.rx_byte) {
1803 sinfo->rx_bytes = vif->target_stats.rx_byte;
1804 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BYTES64);
1805 sinfo->rx_packets = vif->target_stats.rx_pkt;
1806 sinfo->filled |= BIT(NL80211_STA_INFO_RX_PACKETS);
1807 }
1808
1809 if (vif->target_stats.tx_byte) {
1810 sinfo->tx_bytes = vif->target_stats.tx_byte;
1811 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BYTES64);
1812 sinfo->tx_packets = vif->target_stats.tx_pkt;
1813 sinfo->filled |= BIT(NL80211_STA_INFO_TX_PACKETS);
1814 }
1815
1816 sinfo->signal = vif->target_stats.cs_rssi;
1817 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
1818
1819 rate = vif->target_stats.tx_ucast_rate;
1820
1821 if (is_rate_legacy(rate)) {
1822 sinfo->txrate.legacy = rate / 100;
1823 } else if (is_rate_ht20(rate, &mcs, &sgi)) {
1824 if (sgi) {
1825 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1826 sinfo->txrate.mcs = mcs - 1;
1827 } else {
1828 sinfo->txrate.mcs = mcs;
1829 }
1830
1831 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1832 sinfo->txrate.bw = RATE_INFO_BW_20;
1833 } else if (is_rate_ht40(rate, &mcs, &sgi)) {
1834 if (sgi) {
1835 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1836 sinfo->txrate.mcs = mcs - 1;
1837 } else {
1838 sinfo->txrate.mcs = mcs;
1839 }
1840
1841 sinfo->txrate.bw = RATE_INFO_BW_40;
1842 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1843 } else {
1844 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1845 "invalid rate from stats: %d\n", rate);
1846 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE);
1847 return 0;
1848 }
1849
1850 sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE);
1851
1852 if (test_bit(CONNECTED, &vif->flags) &&
1853 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) &&
1854 vif->nw_type == INFRA_NETWORK) {
1855 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1856 sinfo->bss_param.flags = 0;
1857 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period;
1858 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int;
1859 }
1860
1861 return 0;
1862}
1863
1864static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1865 struct cfg80211_pmksa *pmksa)
1866{
1867 struct ath6kl *ar = ath6kl_priv(netdev);
1868 struct ath6kl_vif *vif = netdev_priv(netdev);
1869
1870 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1871 pmksa->pmkid, true);
1872}
1873
1874static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1875 struct cfg80211_pmksa *pmksa)
1876{
1877 struct ath6kl *ar = ath6kl_priv(netdev);
1878 struct ath6kl_vif *vif = netdev_priv(netdev);
1879
1880 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1881 pmksa->pmkid, false);
1882}
1883
1884static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
1885{
1886 struct ath6kl *ar = ath6kl_priv(netdev);
1887 struct ath6kl_vif *vif = netdev_priv(netdev);
1888
1889 if (test_bit(CONNECTED, &vif->flags))
1890 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx,
1891 vif->bssid, NULL, false);
1892 return 0;
1893}
1894
1895static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif,
1896 struct cfg80211_wowlan *wow, u32 *filter)
1897{
1898 int ret, pos;
1899 u8 mask[WOW_PATTERN_SIZE];
1900 u16 i;
1901
1902 /* Configure the patterns that we received from the user. */
1903 for (i = 0; i < wow->n_patterns; i++) {
1904 /*
1905 * Convert given nl80211 specific mask value to equivalent
1906 * driver specific mask value and send it to the chip along
1907 * with patterns. For example, If the mask value defined in
1908 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010),
1909 * then equivalent driver specific mask value is
1910 * "0xFF 0x00 0xFF 0x00".
1911 */
1912 memset(&mask, 0, sizeof(mask));
1913 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) {
1914 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8)))
1915 mask[pos] = 0xFF;
1916 }
1917 /*
1918 * Note: Pattern's offset is not passed as part of wowlan
1919 * parameter from CFG layer. So it's always passed as ZERO
1920 * to the firmware. It means, given WOW patterns are always
1921 * matched from the first byte of received pkt in the firmware.
1922 */
1923 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1924 vif->fw_vif_idx, WOW_LIST_ID,
1925 wow->patterns[i].pattern_len,
1926 0 /* pattern offset */,
1927 wow->patterns[i].pattern, mask);
1928 if (ret)
1929 return ret;
1930 }
1931
1932 if (wow->disconnect)
1933 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC;
1934
1935 if (wow->magic_pkt)
1936 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET;
1937
1938 if (wow->gtk_rekey_failure)
1939 *filter |= WOW_FILTER_OPTION_GTK_ERROR;
1940
1941 if (wow->eap_identity_req)
1942 *filter |= WOW_FILTER_OPTION_EAP_REQ;
1943
1944 if (wow->four_way_handshake)
1945 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS;
1946
1947 return 0;
1948}
1949
1950static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif)
1951{
1952 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00,
1953 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1954 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1955 0x00, 0x08 };
1956 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00,
1957 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1958 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1959 0x00, 0x7f };
1960 u8 unicst_offset = 0;
1961 static const u8 arp_pattern[] = { 0x08, 0x06 };
1962 static const u8 arp_mask[] = { 0xff, 0xff };
1963 u8 arp_offset = 20;
1964 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
1965 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
1966 u8 discvr_offset = 38;
1967 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff,
1968 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1969 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00,
1970 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1971 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1972 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ };
1973 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff,
1974 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1975 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
1976 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1977 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1978 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ };
1979 u8 dhcp_offset = 0;
1980 int ret;
1981
1982 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */
1983 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1984 vif->fw_vif_idx, WOW_LIST_ID,
1985 sizeof(unicst_pattern), unicst_offset,
1986 unicst_pattern, unicst_mask);
1987 if (ret) {
1988 ath6kl_err("failed to add WOW unicast IP pattern\n");
1989 return ret;
1990 }
1991
1992 /* Setup all ARP pkt pattern */
1993 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1994 vif->fw_vif_idx, WOW_LIST_ID,
1995 sizeof(arp_pattern), arp_offset,
1996 arp_pattern, arp_mask);
1997 if (ret) {
1998 ath6kl_err("failed to add WOW ARP pattern\n");
1999 return ret;
2000 }
2001
2002 /*
2003 * Setup multicast pattern for mDNS 224.0.0.251,
2004 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
2005 */
2006 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2007 vif->fw_vif_idx, WOW_LIST_ID,
2008 sizeof(discvr_pattern), discvr_offset,
2009 discvr_pattern, discvr_mask);
2010 if (ret) {
2011 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
2012 return ret;
2013 }
2014
2015 /* Setup all DHCP broadcast pkt pattern */
2016 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2017 vif->fw_vif_idx, WOW_LIST_ID,
2018 sizeof(dhcp_pattern), dhcp_offset,
2019 dhcp_pattern, dhcp_mask);
2020 if (ret) {
2021 ath6kl_err("failed to add WOW DHCP broadcast pattern\n");
2022 return ret;
2023 }
2024
2025 return 0;
2026}
2027
2028static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif)
2029{
2030 struct net_device *ndev = vif->ndev;
2031 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
2032 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
2033 u8 discvr_offset = 38;
2034 u8 mac_mask[ETH_ALEN];
2035 int ret;
2036
2037 /* Setup unicast pkt pattern */
2038 eth_broadcast_addr(mac_mask);
2039 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2040 vif->fw_vif_idx, WOW_LIST_ID,
2041 ETH_ALEN, 0, ndev->dev_addr,
2042 mac_mask);
2043 if (ret) {
2044 ath6kl_err("failed to add WOW unicast pattern\n");
2045 return ret;
2046 }
2047
2048 /*
2049 * Setup multicast pattern for mDNS 224.0.0.251,
2050 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
2051 */
2052 if ((ndev->flags & IFF_ALLMULTI) ||
2053 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) {
2054 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2055 vif->fw_vif_idx, WOW_LIST_ID,
2056 sizeof(discvr_pattern), discvr_offset,
2057 discvr_pattern, discvr_mask);
2058 if (ret) {
2059 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
2060 return ret;
2061 }
2062 }
2063
2064 return 0;
2065}
2066
2067static int is_hsleep_mode_procsed(struct ath6kl_vif *vif)
2068{
2069 return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2070}
2071
2072static bool is_ctrl_ep_empty(struct ath6kl *ar)
2073{
2074 return !ar->tx_pending[ar->ctrl_ep];
2075}
2076
2077static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif)
2078{
2079 int ret, left;
2080
2081 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2082
2083 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2084 ATH6KL_HOST_MODE_ASLEEP);
2085 if (ret)
2086 return ret;
2087
2088 left = wait_event_interruptible_timeout(ar->event_wq,
2089 is_hsleep_mode_procsed(vif),
2090 WMI_TIMEOUT);
2091 if (left == 0) {
2092 ath6kl_warn("timeout, didn't get host sleep cmd processed event\n");
2093 ret = -ETIMEDOUT;
2094 } else if (left < 0) {
2095 ath6kl_warn("error while waiting for host sleep cmd processed event %d\n",
2096 left);
2097 ret = left;
2098 }
2099
2100 if (ar->tx_pending[ar->ctrl_ep]) {
2101 left = wait_event_interruptible_timeout(ar->event_wq,
2102 is_ctrl_ep_empty(ar),
2103 WMI_TIMEOUT);
2104 if (left == 0) {
2105 ath6kl_warn("clear wmi ctrl data timeout\n");
2106 ret = -ETIMEDOUT;
2107 } else if (left < 0) {
2108 ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
2109 ret = left;
2110 }
2111 }
2112
2113 return ret;
2114}
2115
2116static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif,
2117 struct cfg80211_wowlan *wow, u32 *filter)
2118{
2119 struct ath6kl *ar = vif->ar;
2120 struct in_device *in_dev;
2121 struct in_ifaddr *ifa;
2122 int ret;
2123 u16 i, bmiss_time;
2124 __be32 ips[MAX_IP_ADDRS];
2125 u8 index = 0;
2126
2127 if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) &&
2128 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
2129 ar->fw_capabilities)) {
2130 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
2131 vif->fw_vif_idx, false);
2132 if (ret)
2133 return ret;
2134 }
2135
2136 /* Clear existing WOW patterns */
2137 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++)
2138 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx,
2139 WOW_LIST_ID, i);
2140
2141 /*
2142 * Skip the default WOW pattern configuration
2143 * if the driver receives any WOW patterns from
2144 * the user.
2145 */
2146 if (wow)
2147 ret = ath6kl_wow_usr(ar, vif, wow, filter);
2148 else if (vif->nw_type == AP_NETWORK)
2149 ret = ath6kl_wow_ap(ar, vif);
2150 else
2151 ret = ath6kl_wow_sta(ar, vif);
2152
2153 if (ret)
2154 return ret;
2155
2156 netif_stop_queue(vif->ndev);
2157
2158 if (vif->nw_type != AP_NETWORK) {
2159 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
2160 ATH6KL_MAX_WOW_LISTEN_INTL,
2161 0);
2162 if (ret)
2163 return ret;
2164
2165 /* Set listen interval x 15 times as bmiss time */
2166 bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15;
2167 if (bmiss_time > ATH6KL_MAX_BMISS_TIME)
2168 bmiss_time = ATH6KL_MAX_BMISS_TIME;
2169
2170 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
2171 bmiss_time, 0);
2172 if (ret)
2173 return ret;
2174
2175 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2176 0xFFFF, 0, 0xFFFF, 0, 0, 0,
2177 0, 0, 0, 0);
2178 if (ret)
2179 return ret;
2180 }
2181
2182 /* Setup own IP addr for ARP agent. */
2183 in_dev = __in_dev_get_rtnl(vif->ndev);
2184 if (!in_dev)
2185 return 0;
2186
2187 ifa = in_dev->ifa_list;
2188 memset(&ips, 0, sizeof(ips));
2189
2190 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */
2191 while (index < MAX_IP_ADDRS && ifa) {
2192 ips[index] = ifa->ifa_local;
2193 ifa = ifa->ifa_next;
2194 index++;
2195 }
2196
2197 if (ifa) {
2198 ath6kl_err("total IP addr count is exceeding fw limit\n");
2199 return -EINVAL;
2200 }
2201
2202 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]);
2203 if (ret) {
2204 ath6kl_err("fail to setup ip for arp agent\n");
2205 return ret;
2206 }
2207
2208 return ret;
2209}
2210
2211static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
2212{
2213 struct ath6kl_vif *first_vif, *vif;
2214 int ret = 0;
2215 u32 filter = 0;
2216 bool connected = false;
2217
2218 /* enter / leave wow suspend on first vif always */
2219 first_vif = ath6kl_vif_first(ar);
2220 if (WARN_ON(!first_vif) ||
2221 !ath6kl_cfg80211_ready(first_vif))
2222 return -EIO;
2223
2224 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST))
2225 return -EINVAL;
2226
2227 /* install filters for each connected vif */
2228 spin_lock_bh(&ar->list_lock);
2229 list_for_each_entry(vif, &ar->vif_list, list) {
2230 if (!test_bit(CONNECTED, &vif->flags) ||
2231 !ath6kl_cfg80211_ready(vif))
2232 continue;
2233 connected = true;
2234
2235 ret = ath6kl_wow_suspend_vif(vif, wow, &filter);
2236 if (ret)
2237 break;
2238 }
2239 spin_unlock_bh(&ar->list_lock);
2240
2241 if (!connected)
2242 return -ENOTCONN;
2243 else if (ret)
2244 return ret;
2245
2246 ar->state = ATH6KL_STATE_SUSPENDING;
2247
2248 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx,
2249 ATH6KL_WOW_MODE_ENABLE,
2250 filter,
2251 WOW_HOST_REQ_DELAY);
2252 if (ret)
2253 return ret;
2254
2255 return ath6kl_cfg80211_host_sleep(ar, first_vif);
2256}
2257
2258static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif)
2259{
2260 struct ath6kl *ar = vif->ar;
2261 int ret;
2262
2263 if (vif->nw_type != AP_NETWORK) {
2264 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2265 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
2266 if (ret)
2267 return ret;
2268
2269 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
2270 vif->listen_intvl_t, 0);
2271 if (ret)
2272 return ret;
2273
2274 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
2275 vif->bmiss_time_t, 0);
2276 if (ret)
2277 return ret;
2278 }
2279
2280 if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) &&
2281 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
2282 ar->fw_capabilities)) {
2283 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
2284 vif->fw_vif_idx, true);
2285 if (ret)
2286 return ret;
2287 }
2288
2289 netif_wake_queue(vif->ndev);
2290
2291 return 0;
2292}
2293
2294static int ath6kl_wow_resume(struct ath6kl *ar)
2295{
2296 struct ath6kl_vif *vif;
2297 int ret;
2298
2299 vif = ath6kl_vif_first(ar);
2300 if (WARN_ON(!vif) ||
2301 !ath6kl_cfg80211_ready(vif))
2302 return -EIO;
2303
2304 ar->state = ATH6KL_STATE_RESUMING;
2305
2306 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2307 ATH6KL_HOST_MODE_AWAKE);
2308 if (ret) {
2309 ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n",
2310 ret);
2311 goto cleanup;
2312 }
2313
2314 spin_lock_bh(&ar->list_lock);
2315 list_for_each_entry(vif, &ar->vif_list, list) {
2316 if (!test_bit(CONNECTED, &vif->flags) ||
2317 !ath6kl_cfg80211_ready(vif))
2318 continue;
2319 ret = ath6kl_wow_resume_vif(vif);
2320 if (ret)
2321 break;
2322 }
2323 spin_unlock_bh(&ar->list_lock);
2324
2325 if (ret)
2326 goto cleanup;
2327
2328 ar->state = ATH6KL_STATE_ON;
2329 return 0;
2330
2331cleanup:
2332 ar->state = ATH6KL_STATE_WOW;
2333 return ret;
2334}
2335
2336static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar)
2337{
2338 struct ath6kl_vif *vif;
2339 int ret;
2340
2341 vif = ath6kl_vif_first(ar);
2342 if (!vif)
2343 return -EIO;
2344
2345 if (!test_bit(WMI_READY, &ar->flag)) {
2346 ath6kl_err("deepsleep failed as wmi is not ready\n");
2347 return -EIO;
2348 }
2349
2350 ath6kl_cfg80211_stop_all(ar);
2351
2352 /* Save the current power mode before enabling power save */
2353 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
2354
2355 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
2356 if (ret)
2357 return ret;
2358
2359 /* Disable WOW mode */
2360 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
2361 ATH6KL_WOW_MODE_DISABLE,
2362 0, 0);
2363 if (ret)
2364 return ret;
2365
2366 /* Flush all non control pkts in TX path */
2367 ath6kl_tx_data_cleanup(ar);
2368
2369 ret = ath6kl_cfg80211_host_sleep(ar, vif);
2370 if (ret)
2371 return ret;
2372
2373 return 0;
2374}
2375
2376static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar)
2377{
2378 struct ath6kl_vif *vif;
2379 int ret;
2380
2381 vif = ath6kl_vif_first(ar);
2382
2383 if (!vif)
2384 return -EIO;
2385
2386 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
2387 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
2388 ar->wmi->saved_pwr_mode);
2389 if (ret)
2390 return ret;
2391 }
2392
2393 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2394 ATH6KL_HOST_MODE_AWAKE);
2395 if (ret)
2396 return ret;
2397
2398 ar->state = ATH6KL_STATE_ON;
2399
2400 /* Reset scan parameter to default values */
2401 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2402 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
2403 if (ret)
2404 return ret;
2405
2406 return 0;
2407}
2408
2409int ath6kl_cfg80211_suspend(struct ath6kl *ar,
2410 enum ath6kl_cfg_suspend_mode mode,
2411 struct cfg80211_wowlan *wow)
2412{
2413 struct ath6kl_vif *vif;
2414 enum ath6kl_state prev_state;
2415 int ret;
2416
2417 switch (mode) {
2418 case ATH6KL_CFG_SUSPEND_WOW:
2419
2420 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n");
2421
2422 /* Flush all non control pkts in TX path */
2423 ath6kl_tx_data_cleanup(ar);
2424
2425 prev_state = ar->state;
2426
2427 ret = ath6kl_wow_suspend(ar, wow);
2428 if (ret) {
2429 ar->state = prev_state;
2430 return ret;
2431 }
2432
2433 ar->state = ATH6KL_STATE_WOW;
2434 break;
2435
2436 case ATH6KL_CFG_SUSPEND_DEEPSLEEP:
2437
2438 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n");
2439
2440 ret = ath6kl_cfg80211_deepsleep_suspend(ar);
2441 if (ret) {
2442 ath6kl_err("deepsleep suspend failed: %d\n", ret);
2443 return ret;
2444 }
2445
2446 ar->state = ATH6KL_STATE_DEEPSLEEP;
2447
2448 break;
2449
2450 case ATH6KL_CFG_SUSPEND_CUTPOWER:
2451
2452 ath6kl_cfg80211_stop_all(ar);
2453
2454 if (ar->state == ATH6KL_STATE_OFF) {
2455 ath6kl_dbg(ATH6KL_DBG_SUSPEND,
2456 "suspend hw off, no action for cutpower\n");
2457 break;
2458 }
2459
2460 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n");
2461
2462 ret = ath6kl_init_hw_stop(ar);
2463 if (ret) {
2464 ath6kl_warn("failed to stop hw during suspend: %d\n",
2465 ret);
2466 }
2467
2468 ar->state = ATH6KL_STATE_CUTPOWER;
2469
2470 break;
2471
2472 default:
2473 break;
2474 }
2475
2476 list_for_each_entry(vif, &ar->vif_list, list)
2477 ath6kl_cfg80211_scan_complete_event(vif, true);
2478
2479 return 0;
2480}
2481EXPORT_SYMBOL(ath6kl_cfg80211_suspend);
2482
2483int ath6kl_cfg80211_resume(struct ath6kl *ar)
2484{
2485 int ret;
2486
2487 switch (ar->state) {
2488 case ATH6KL_STATE_WOW:
2489 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n");
2490
2491 ret = ath6kl_wow_resume(ar);
2492 if (ret) {
2493 ath6kl_warn("wow mode resume failed: %d\n", ret);
2494 return ret;
2495 }
2496
2497 break;
2498
2499 case ATH6KL_STATE_DEEPSLEEP:
2500 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n");
2501
2502 ret = ath6kl_cfg80211_deepsleep_resume(ar);
2503 if (ret) {
2504 ath6kl_warn("deep sleep resume failed: %d\n", ret);
2505 return ret;
2506 }
2507 break;
2508
2509 case ATH6KL_STATE_CUTPOWER:
2510 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n");
2511
2512 ret = ath6kl_init_hw_start(ar);
2513 if (ret) {
2514 ath6kl_warn("Failed to boot hw in resume: %d\n", ret);
2515 return ret;
2516 }
2517 break;
2518
2519 default:
2520 break;
2521 }
2522
2523 return 0;
2524}
2525EXPORT_SYMBOL(ath6kl_cfg80211_resume);
2526
2527#ifdef CONFIG_PM
2528
2529/* hif layer decides what suspend mode to use */
2530static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy,
2531 struct cfg80211_wowlan *wow)
2532{
2533 struct ath6kl *ar = wiphy_priv(wiphy);
2534
2535 ath6kl_recovery_suspend(ar);
2536
2537 return ath6kl_hif_suspend(ar, wow);
2538}
2539
2540static int __ath6kl_cfg80211_resume(struct wiphy *wiphy)
2541{
2542 struct ath6kl *ar = wiphy_priv(wiphy);
2543 int err;
2544
2545 err = ath6kl_hif_resume(ar);
2546 if (err)
2547 return err;
2548
2549 ath6kl_recovery_resume(ar);
2550
2551 return 0;
2552}
2553
2554/*
2555 * FIXME: WOW suspend mode is selected if the host sdio controller supports
2556 * both sdio irq wake up and keep power. The target pulls sdio data line to
2557 * wake up the host when WOW pattern matches. This causes sdio irq handler
2558 * is being called in the host side which internally hits ath6kl's RX path.
2559 *
2560 * Since sdio interrupt is not disabled, RX path executes even before
2561 * the host executes the actual resume operation from PM module.
2562 *
2563 * In the current scenario, WOW resume should happen before start processing
2564 * any data from the target. So It's required to perform WOW resume in RX path.
2565 * Ideally we should perform WOW resume only in the actual platform
2566 * resume path. This area needs bit rework to avoid WOW resume in RX path.
2567 *
2568 * ath6kl_check_wow_status() is called from ath6kl_rx().
2569 */
2570void ath6kl_check_wow_status(struct ath6kl *ar)
2571{
2572 if (ar->state == ATH6KL_STATE_SUSPENDING)
2573 return;
2574
2575 if (ar->state == ATH6KL_STATE_WOW)
2576 ath6kl_cfg80211_resume(ar);
2577}
2578
2579#else
2580
2581void ath6kl_check_wow_status(struct ath6kl *ar)
2582{
2583}
2584#endif
2585
2586static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum ieee80211_band band,
2587 bool ht_enable)
2588{
2589 struct ath6kl_htcap *htcap = &vif->htcap[band];
2590
2591 if (htcap->ht_enable == ht_enable)
2592 return 0;
2593
2594 if (ht_enable) {
2595 /* Set default ht capabilities */
2596 htcap->ht_enable = true;
2597 htcap->cap_info = (band == IEEE80211_BAND_2GHZ) ?
2598 ath6kl_g_htcap : ath6kl_a_htcap;
2599 htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K;
2600 } else /* Disable ht */
2601 memset(htcap, 0, sizeof(*htcap));
2602
2603 return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx,
2604 band, htcap);
2605}
2606
2607static int ath6kl_restore_htcap(struct ath6kl_vif *vif)
2608{
2609 struct wiphy *wiphy = vif->ar->wiphy;
2610 int band, ret = 0;
2611
2612 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2613 if (!wiphy->bands[band])
2614 continue;
2615
2616 ret = ath6kl_set_htcap(vif, band,
2617 wiphy->bands[band]->ht_cap.ht_supported);
2618 if (ret)
2619 return ret;
2620 }
2621
2622 return ret;
2623}
2624
2625static bool ath6kl_is_p2p_ie(const u8 *pos)
2626{
2627 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
2628 pos[2] == 0x50 && pos[3] == 0x6f &&
2629 pos[4] == 0x9a && pos[5] == 0x09;
2630}
2631
2632static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif,
2633 const u8 *ies, size_t ies_len)
2634{
2635 struct ath6kl *ar = vif->ar;
2636 const u8 *pos;
2637 u8 *buf = NULL;
2638 size_t len = 0;
2639 int ret;
2640
2641 /*
2642 * Filter out P2P IE(s) since they will be included depending on
2643 * the Probe Request frame in ath6kl_send_go_probe_resp().
2644 */
2645
2646 if (ies && ies_len) {
2647 buf = kmalloc(ies_len, GFP_KERNEL);
2648 if (buf == NULL)
2649 return -ENOMEM;
2650 pos = ies;
2651 while (pos + 1 < ies + ies_len) {
2652 if (pos + 2 + pos[1] > ies + ies_len)
2653 break;
2654 if (!ath6kl_is_p2p_ie(pos)) {
2655 memcpy(buf + len, pos, 2 + pos[1]);
2656 len += 2 + pos[1];
2657 }
2658 pos += 2 + pos[1];
2659 }
2660 }
2661
2662 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2663 WMI_FRAME_PROBE_RESP, buf, len);
2664 kfree(buf);
2665 return ret;
2666}
2667
2668static int ath6kl_set_ies(struct ath6kl_vif *vif,
2669 struct cfg80211_beacon_data *info)
2670{
2671 struct ath6kl *ar = vif->ar;
2672 int res;
2673
2674 /* this also clears IE in fw if it's not set */
2675 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2676 WMI_FRAME_BEACON,
2677 info->beacon_ies,
2678 info->beacon_ies_len);
2679 if (res)
2680 return res;
2681
2682 /* this also clears IE in fw if it's not set */
2683 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies,
2684 info->proberesp_ies_len);
2685 if (res)
2686 return res;
2687
2688 /* this also clears IE in fw if it's not set */
2689 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2690 WMI_FRAME_ASSOC_RESP,
2691 info->assocresp_ies,
2692 info->assocresp_ies_len);
2693 if (res)
2694 return res;
2695
2696 return 0;
2697}
2698
2699static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon,
2700 u8 *rsn_capab)
2701{
2702 const u8 *rsn_ie;
2703 size_t rsn_ie_len;
2704 u16 cnt;
2705
2706 if (!beacon->tail)
2707 return -EINVAL;
2708
2709 rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len);
2710 if (!rsn_ie)
2711 return -EINVAL;
2712
2713 rsn_ie_len = *(rsn_ie + 1);
2714 /* skip element id and length */
2715 rsn_ie += 2;
2716
2717 /* skip version */
2718 if (rsn_ie_len < 2)
2719 return -EINVAL;
2720 rsn_ie += 2;
2721 rsn_ie_len -= 2;
2722
2723 /* skip group cipher suite */
2724 if (rsn_ie_len < 4)
2725 return 0;
2726 rsn_ie += 4;
2727 rsn_ie_len -= 4;
2728
2729 /* skip pairwise cipher suite */
2730 if (rsn_ie_len < 2)
2731 return 0;
2732 cnt = get_unaligned_le16(rsn_ie);
2733 rsn_ie += (2 + cnt * 4);
2734 rsn_ie_len -= (2 + cnt * 4);
2735
2736 /* skip akm suite */
2737 if (rsn_ie_len < 2)
2738 return 0;
2739 cnt = get_unaligned_le16(rsn_ie);
2740 rsn_ie += (2 + cnt * 4);
2741 rsn_ie_len -= (2 + cnt * 4);
2742
2743 if (rsn_ie_len < 2)
2744 return 0;
2745
2746 memcpy(rsn_capab, rsn_ie, 2);
2747
2748 return 0;
2749}
2750
2751static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
2752 struct cfg80211_ap_settings *info)
2753{
2754 struct ath6kl *ar = ath6kl_priv(dev);
2755 struct ath6kl_vif *vif = netdev_priv(dev);
2756 struct ieee80211_mgmt *mgmt;
2757 bool hidden = false;
2758 u8 *ies;
2759 int ies_len;
2760 struct wmi_connect_cmd p;
2761 int res;
2762 int i, ret;
2763 u16 rsn_capab = 0;
2764 int inactivity_timeout = 0;
2765
2766 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__);
2767
2768 if (!ath6kl_cfg80211_ready(vif))
2769 return -EIO;
2770
2771 if (vif->next_mode != AP_NETWORK)
2772 return -EOPNOTSUPP;
2773
2774 res = ath6kl_set_ies(vif, &info->beacon);
2775
2776 ar->ap_mode_bkey.valid = false;
2777
2778 ret = ath6kl_wmi_ap_set_beacon_intvl_cmd(ar->wmi, vif->fw_vif_idx,
2779 info->beacon_interval);
2780
2781 if (ret)
2782 ath6kl_warn("Failed to set beacon interval: %d\n", ret);
2783
2784 ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx,
2785 info->dtim_period);
2786
2787 /* ignore error, just print a warning and continue normally */
2788 if (ret)
2789 ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret);
2790
2791 if (info->beacon.head == NULL)
2792 return -EINVAL;
2793 mgmt = (struct ieee80211_mgmt *) info->beacon.head;
2794 ies = mgmt->u.beacon.variable;
2795 if (ies > info->beacon.head + info->beacon.head_len)
2796 return -EINVAL;
2797 ies_len = info->beacon.head + info->beacon.head_len - ies;
2798
2799 if (info->ssid == NULL)
2800 return -EINVAL;
2801 memcpy(vif->ssid, info->ssid, info->ssid_len);
2802 vif->ssid_len = info->ssid_len;
2803 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE)
2804 hidden = true;
2805
2806 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden);
2807 if (res)
2808 return res;
2809
2810 ret = ath6kl_set_auth_type(vif, info->auth_type);
2811 if (ret)
2812 return ret;
2813
2814 memset(&p, 0, sizeof(p));
2815
2816 for (i = 0; i < info->crypto.n_akm_suites; i++) {
2817 switch (info->crypto.akm_suites[i]) {
2818 case WLAN_AKM_SUITE_8021X:
2819 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2820 p.auth_mode |= WPA_AUTH;
2821 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2822 p.auth_mode |= WPA2_AUTH;
2823 break;
2824 case WLAN_AKM_SUITE_PSK:
2825 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2826 p.auth_mode |= WPA_PSK_AUTH;
2827 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2828 p.auth_mode |= WPA2_PSK_AUTH;
2829 break;
2830 }
2831 }
2832 if (p.auth_mode == 0)
2833 p.auth_mode = NONE_AUTH;
2834 vif->auth_mode = p.auth_mode;
2835
2836 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) {
2837 switch (info->crypto.ciphers_pairwise[i]) {
2838 case WLAN_CIPHER_SUITE_WEP40:
2839 case WLAN_CIPHER_SUITE_WEP104:
2840 p.prwise_crypto_type |= WEP_CRYPT;
2841 break;
2842 case WLAN_CIPHER_SUITE_TKIP:
2843 p.prwise_crypto_type |= TKIP_CRYPT;
2844 break;
2845 case WLAN_CIPHER_SUITE_CCMP:
2846 p.prwise_crypto_type |= AES_CRYPT;
2847 break;
2848 case WLAN_CIPHER_SUITE_SMS4:
2849 p.prwise_crypto_type |= WAPI_CRYPT;
2850 break;
2851 }
2852 }
2853 if (p.prwise_crypto_type == 0) {
2854 p.prwise_crypto_type = NONE_CRYPT;
2855 ath6kl_set_cipher(vif, 0, true);
2856 } else if (info->crypto.n_ciphers_pairwise == 1) {
2857 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true);
2858 }
2859
2860 switch (info->crypto.cipher_group) {
2861 case WLAN_CIPHER_SUITE_WEP40:
2862 case WLAN_CIPHER_SUITE_WEP104:
2863 p.grp_crypto_type = WEP_CRYPT;
2864 break;
2865 case WLAN_CIPHER_SUITE_TKIP:
2866 p.grp_crypto_type = TKIP_CRYPT;
2867 break;
2868 case WLAN_CIPHER_SUITE_CCMP:
2869 p.grp_crypto_type = AES_CRYPT;
2870 break;
2871 case WLAN_CIPHER_SUITE_SMS4:
2872 p.grp_crypto_type = WAPI_CRYPT;
2873 break;
2874 default:
2875 p.grp_crypto_type = NONE_CRYPT;
2876 break;
2877 }
2878 ath6kl_set_cipher(vif, info->crypto.cipher_group, false);
2879
2880 p.nw_type = AP_NETWORK;
2881 vif->nw_type = vif->next_mode;
2882
2883 p.ssid_len = vif->ssid_len;
2884 memcpy(p.ssid, vif->ssid, vif->ssid_len);
2885 p.dot11_auth_mode = vif->dot11_auth_mode;
2886 p.ch = cpu_to_le16(info->chandef.chan->center_freq);
2887
2888 /* Enable uAPSD support by default */
2889 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true);
2890 if (res < 0)
2891 return res;
2892
2893 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) {
2894 p.nw_subtype = SUBTYPE_P2PGO;
2895 } else {
2896 /*
2897 * Due to firmware limitation, it is not possible to
2898 * do P2P mgmt operations in AP mode
2899 */
2900 p.nw_subtype = SUBTYPE_NONE;
2901 }
2902
2903 if (info->inactivity_timeout) {
2904 inactivity_timeout = info->inactivity_timeout;
2905
2906 if (test_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS,
2907 ar->fw_capabilities))
2908 inactivity_timeout = DIV_ROUND_UP(inactivity_timeout,
2909 60);
2910
2911 res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx,
2912 inactivity_timeout);
2913 if (res < 0)
2914 return res;
2915 }
2916
2917 if (ath6kl_set_htcap(vif, info->chandef.chan->band,
2918 cfg80211_get_chandef_type(&info->chandef)
2919 != NL80211_CHAN_NO_HT))
2920 return -EIO;
2921
2922 /*
2923 * Get the PTKSA replay counter in the RSN IE. Supplicant
2924 * will use the RSN IE in M3 message and firmware has to
2925 * advertise the same in beacon/probe response. Send
2926 * the complete RSN IE capability field to firmware
2927 */
2928 if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) &&
2929 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
2930 ar->fw_capabilities)) {
2931 res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx,
2932 WLAN_EID_RSN, WMI_RSN_IE_CAPB,
2933 (const u8 *) &rsn_capab,
2934 sizeof(rsn_capab));
2935 vif->rsn_capab = rsn_capab;
2936 if (res < 0)
2937 return res;
2938 }
2939
2940 memcpy(&vif->profile, &p, sizeof(p));
2941 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p);
2942 if (res < 0)
2943 return res;
2944
2945 return 0;
2946}
2947
2948static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev,
2949 struct cfg80211_beacon_data *beacon)
2950{
2951 struct ath6kl_vif *vif = netdev_priv(dev);
2952
2953 if (!ath6kl_cfg80211_ready(vif))
2954 return -EIO;
2955
2956 if (vif->next_mode != AP_NETWORK)
2957 return -EOPNOTSUPP;
2958
2959 return ath6kl_set_ies(vif, beacon);
2960}
2961
2962static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev)
2963{
2964 struct ath6kl *ar = ath6kl_priv(dev);
2965 struct ath6kl_vif *vif = netdev_priv(dev);
2966
2967 if (vif->nw_type != AP_NETWORK)
2968 return -EOPNOTSUPP;
2969 if (!test_bit(CONNECTED, &vif->flags))
2970 return -ENOTCONN;
2971
2972 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
2973 clear_bit(CONNECTED, &vif->flags);
2974
2975 /* Restore ht setting in firmware */
2976 return ath6kl_restore_htcap(vif);
2977}
2978
2979static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2980
2981static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev,
2982 struct station_del_parameters *params)
2983{
2984 struct ath6kl *ar = ath6kl_priv(dev);
2985 struct ath6kl_vif *vif = netdev_priv(dev);
2986 const u8 *addr = params->mac ? params->mac : bcast_addr;
2987
2988 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH,
2989 addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
2990}
2991
2992static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev,
2993 const u8 *mac,
2994 struct station_parameters *params)
2995{
2996 struct ath6kl *ar = ath6kl_priv(dev);
2997 struct ath6kl_vif *vif = netdev_priv(dev);
2998 int err;
2999
3000 if (vif->nw_type != AP_NETWORK)
3001 return -EOPNOTSUPP;
3002
3003 err = cfg80211_check_station_change(wiphy, params,
3004 CFG80211_STA_AP_MLME_CLIENT);
3005 if (err)
3006 return err;
3007
3008 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
3009 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
3010 WMI_AP_MLME_AUTHORIZE, mac, 0);
3011 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
3012 WMI_AP_MLME_UNAUTHORIZE, mac, 0);
3013}
3014
3015static int ath6kl_remain_on_channel(struct wiphy *wiphy,
3016 struct wireless_dev *wdev,
3017 struct ieee80211_channel *chan,
3018 unsigned int duration,
3019 u64 *cookie)
3020{
3021 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3022 struct ath6kl *ar = ath6kl_priv(vif->ndev);
3023 u32 id;
3024
3025 /* TODO: if already pending or ongoing remain-on-channel,
3026 * return -EBUSY */
3027 id = ++vif->last_roc_id;
3028 if (id == 0) {
3029 /* Do not use 0 as the cookie value */
3030 id = ++vif->last_roc_id;
3031 }
3032 *cookie = id;
3033
3034 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx,
3035 chan->center_freq, duration);
3036}
3037
3038static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy,
3039 struct wireless_dev *wdev,
3040 u64 cookie)
3041{
3042 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3043 struct ath6kl *ar = ath6kl_priv(vif->ndev);
3044
3045 if (cookie != vif->last_roc_id)
3046 return -ENOENT;
3047 vif->last_cancel_roc_id = cookie;
3048
3049 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx);
3050}
3051
3052static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif,
3053 const u8 *buf, size_t len,
3054 unsigned int freq)
3055{
3056 struct ath6kl *ar = vif->ar;
3057 const u8 *pos;
3058 u8 *p2p;
3059 int p2p_len;
3060 int ret;
3061 const struct ieee80211_mgmt *mgmt;
3062
3063 mgmt = (const struct ieee80211_mgmt *) buf;
3064
3065 /* Include P2P IE(s) from the frame generated in user space. */
3066
3067 p2p = kmalloc(len, GFP_KERNEL);
3068 if (p2p == NULL)
3069 return -ENOMEM;
3070 p2p_len = 0;
3071
3072 pos = mgmt->u.probe_resp.variable;
3073 while (pos + 1 < buf + len) {
3074 if (pos + 2 + pos[1] > buf + len)
3075 break;
3076 if (ath6kl_is_p2p_ie(pos)) {
3077 memcpy(p2p + p2p_len, pos, 2 + pos[1]);
3078 p2p_len += 2 + pos[1];
3079 }
3080 pos += 2 + pos[1];
3081 }
3082
3083 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq,
3084 mgmt->da, p2p, p2p_len);
3085 kfree(p2p);
3086 return ret;
3087}
3088
3089static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif,
3090 u32 id,
3091 u32 freq,
3092 u32 wait,
3093 const u8 *buf,
3094 size_t len,
3095 bool *more_data,
3096 bool no_cck)
3097{
3098 struct ieee80211_mgmt *mgmt;
3099 struct ath6kl_sta *conn;
3100 bool is_psq_empty = false;
3101 struct ath6kl_mgmt_buff *mgmt_buf;
3102 size_t mgmt_buf_size;
3103 struct ath6kl *ar = vif->ar;
3104
3105 mgmt = (struct ieee80211_mgmt *) buf;
3106 if (is_multicast_ether_addr(mgmt->da))
3107 return false;
3108
3109 conn = ath6kl_find_sta(vif, mgmt->da);
3110 if (!conn)
3111 return false;
3112
3113 if (conn->sta_flags & STA_PS_SLEEP) {
3114 if (!(conn->sta_flags & STA_PS_POLLED)) {
3115 /* Queue the frames if the STA is sleeping */
3116 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff);
3117 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL);
3118 if (!mgmt_buf)
3119 return false;
3120
3121 INIT_LIST_HEAD(&mgmt_buf->list);
3122 mgmt_buf->id = id;
3123 mgmt_buf->freq = freq;
3124 mgmt_buf->wait = wait;
3125 mgmt_buf->len = len;
3126 mgmt_buf->no_cck = no_cck;
3127 memcpy(mgmt_buf->buf, buf, len);
3128 spin_lock_bh(&conn->psq_lock);
3129 is_psq_empty = skb_queue_empty(&conn->psq) &&
3130 (conn->mgmt_psq_len == 0);
3131 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq);
3132 conn->mgmt_psq_len++;
3133 spin_unlock_bh(&conn->psq_lock);
3134
3135 /*
3136 * If this is the first pkt getting queued
3137 * for this STA, update the PVB for this
3138 * STA.
3139 */
3140 if (is_psq_empty)
3141 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
3142 conn->aid, 1);
3143 return true;
3144 }
3145
3146 /*
3147 * This tx is because of a PsPoll.
3148 * Determine if MoreData bit has to be set.
3149 */
3150 spin_lock_bh(&conn->psq_lock);
3151 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0))
3152 *more_data = true;
3153 spin_unlock_bh(&conn->psq_lock);
3154 }
3155
3156 return false;
3157}
3158
3159/* Check if SSID length is greater than DIRECT- */
3160static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len)
3161{
3162 const struct ieee80211_mgmt *mgmt;
3163 mgmt = (const struct ieee80211_mgmt *) buf;
3164
3165 /* variable[1] contains the SSID tag length */
3166 if (buf + len >= &mgmt->u.probe_resp.variable[1] &&
3167 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) {
3168 return true;
3169 }
3170
3171 return false;
3172}
3173
3174static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3175 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
3176{
3177 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3178 struct ath6kl *ar = ath6kl_priv(vif->ndev);
3179 struct ieee80211_channel *chan = params->chan;
3180 const u8 *buf = params->buf;
3181 size_t len = params->len;
3182 unsigned int wait = params->wait;
3183 bool no_cck = params->no_cck;
3184 u32 id, freq;
3185 const struct ieee80211_mgmt *mgmt;
3186 bool more_data, queued;
3187
3188 /* default to the current channel, but use the one specified as argument
3189 * if any
3190 */
3191 freq = vif->ch_hint;
3192 if (chan)
3193 freq = chan->center_freq;
3194
3195 /* never send freq zero to the firmware */
3196 if (WARN_ON(freq == 0))
3197 return -EINVAL;
3198
3199 mgmt = (const struct ieee80211_mgmt *) buf;
3200 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) &&
3201 ieee80211_is_probe_resp(mgmt->frame_control) &&
3202 ath6kl_is_p2p_go_ssid(buf, len)) {
3203 /*
3204 * Send Probe Response frame in GO mode using a separate WMI
3205 * command to allow the target to fill in the generic IEs.
3206 */
3207 *cookie = 0; /* TX status not supported */
3208 return ath6kl_send_go_probe_resp(vif, buf, len, freq);
3209 }
3210
3211 id = vif->send_action_id++;
3212 if (id == 0) {
3213 /*
3214 * 0 is a reserved value in the WMI command and shall not be
3215 * used for the command.
3216 */
3217 id = vif->send_action_id++;
3218 }
3219
3220 *cookie = id;
3221
3222 /* AP mode Power saving processing */
3223 if (vif->nw_type == AP_NETWORK) {
3224 queued = ath6kl_mgmt_powersave_ap(vif, id, freq, wait, buf, len,
3225 &more_data, no_cck);
3226 if (queued)
3227 return 0;
3228 }
3229
3230 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, freq,
3231 wait, buf, len, no_cck);
3232}
3233
3234static int ath6kl_get_antenna(struct wiphy *wiphy,
3235 u32 *tx_ant, u32 *rx_ant)
3236{
3237 struct ath6kl *ar = wiphy_priv(wiphy);
3238 *tx_ant = ar->hw.tx_ant;
3239 *rx_ant = ar->hw.rx_ant;
3240 return 0;
3241}
3242
3243static void ath6kl_mgmt_frame_register(struct wiphy *wiphy,
3244 struct wireless_dev *wdev,
3245 u16 frame_type, bool reg)
3246{
3247 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3248
3249 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n",
3250 __func__, frame_type, reg);
3251 if (frame_type == IEEE80211_STYPE_PROBE_REQ) {
3252 /*
3253 * Note: This notification callback is not allowed to sleep, so
3254 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we
3255 * hardcode target to report Probe Request frames all the time.
3256 */
3257 vif->probe_req_report = reg;
3258 }
3259}
3260
3261static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy,
3262 struct net_device *dev,
3263 struct cfg80211_sched_scan_request *request)
3264{
3265 struct ath6kl *ar = ath6kl_priv(dev);
3266 struct ath6kl_vif *vif = netdev_priv(dev);
3267 u16 interval;
3268 int ret, rssi_thold;
3269 int n_match_sets = request->n_match_sets;
3270
3271 /*
3272 * If there's a matchset w/o an SSID, then assume it's just for
3273 * the RSSI (nothing else is currently supported) and ignore it.
3274 * The device only supports a global RSSI filter that we set below.
3275 */
3276 if (n_match_sets == 1 && !request->match_sets[0].ssid.ssid_len)
3277 n_match_sets = 0;
3278
3279 if (ar->state != ATH6KL_STATE_ON)
3280 return -EIO;
3281
3282 if (vif->sme_state != SME_DISCONNECTED)
3283 return -EBUSY;
3284
3285 ath6kl_cfg80211_scan_complete_event(vif, true);
3286
3287 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
3288 request->n_ssids,
3289 request->match_sets,
3290 n_match_sets);
3291 if (ret < 0)
3292 return ret;
3293
3294 if (!n_match_sets) {
3295 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
3296 ALL_BSS_FILTER, 0);
3297 if (ret < 0)
3298 return ret;
3299 } else {
3300 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
3301 MATCHED_SSID_FILTER, 0);
3302 if (ret < 0)
3303 return ret;
3304 }
3305
3306 if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD,
3307 ar->fw_capabilities)) {
3308 if (request->min_rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF)
3309 rssi_thold = 0;
3310 else if (request->min_rssi_thold < -127)
3311 rssi_thold = -127;
3312 else
3313 rssi_thold = request->min_rssi_thold;
3314
3315 ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx,
3316 rssi_thold);
3317 if (ret) {
3318 ath6kl_err("failed to set RSSI threshold for scan\n");
3319 return ret;
3320 }
3321 }
3322
3323 /* fw uses seconds, also make sure that it's >0 */
3324 interval = max_t(u16, 1, request->scan_plans[0].interval);
3325
3326 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
3327 interval, interval,
3328 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
3329
3330 /* this also clears IE in fw if it's not set */
3331 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
3332 WMI_FRAME_PROBE_REQ,
3333 request->ie, request->ie_len);
3334 if (ret) {
3335 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n",
3336 ret);
3337 return ret;
3338 }
3339
3340 ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true);
3341 if (ret)
3342 return ret;
3343
3344 set_bit(SCHED_SCANNING, &vif->flags);
3345
3346 return 0;
3347}
3348
3349static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy,
3350 struct net_device *dev)
3351{
3352 struct ath6kl_vif *vif = netdev_priv(dev);
3353 bool stopped;
3354
3355 stopped = __ath6kl_cfg80211_sscan_stop(vif);
3356
3357 if (!stopped)
3358 return -EIO;
3359
3360 return 0;
3361}
3362
3363static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy,
3364 struct net_device *dev,
3365 const u8 *addr,
3366 const struct cfg80211_bitrate_mask *mask)
3367{
3368 struct ath6kl *ar = ath6kl_priv(dev);
3369 struct ath6kl_vif *vif = netdev_priv(dev);
3370
3371 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx,
3372 mask);
3373}
3374
3375static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy,
3376 struct net_device *dev,
3377 u32 rate, u32 pkts, u32 intvl)
3378{
3379 struct ath6kl *ar = ath6kl_priv(dev);
3380 struct ath6kl_vif *vif = netdev_priv(dev);
3381
3382 if (vif->nw_type != INFRA_NETWORK ||
3383 !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities))
3384 return -EOPNOTSUPP;
3385
3386 if (vif->sme_state != SME_CONNECTED)
3387 return -ENOTCONN;
3388
3389 /* save this since the firmware won't report the interval */
3390 vif->txe_intvl = intvl;
3391
3392 return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx,
3393 rate, pkts, intvl);
3394}
3395
3396static const struct ieee80211_txrx_stypes
3397ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = {
3398 [NL80211_IFTYPE_STATION] = {
3399 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3400 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3401 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3402 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3403 },
3404 [NL80211_IFTYPE_AP] = {
3405 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3406 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3407 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3408 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3409 },
3410 [NL80211_IFTYPE_P2P_CLIENT] = {
3411 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3412 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3413 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3414 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3415 },
3416 [NL80211_IFTYPE_P2P_GO] = {
3417 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3418 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3419 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3420 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3421 },
3422};
3423
3424static struct cfg80211_ops ath6kl_cfg80211_ops = {
3425 .add_virtual_intf = ath6kl_cfg80211_add_iface,
3426 .del_virtual_intf = ath6kl_cfg80211_del_iface,
3427 .change_virtual_intf = ath6kl_cfg80211_change_iface,
3428 .scan = ath6kl_cfg80211_scan,
3429 .connect = ath6kl_cfg80211_connect,
3430 .disconnect = ath6kl_cfg80211_disconnect,
3431 .add_key = ath6kl_cfg80211_add_key,
3432 .get_key = ath6kl_cfg80211_get_key,
3433 .del_key = ath6kl_cfg80211_del_key,
3434 .set_default_key = ath6kl_cfg80211_set_default_key,
3435 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,
3436 .set_tx_power = ath6kl_cfg80211_set_txpower,
3437 .get_tx_power = ath6kl_cfg80211_get_txpower,
3438 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,
3439 .join_ibss = ath6kl_cfg80211_join_ibss,
3440 .leave_ibss = ath6kl_cfg80211_leave_ibss,
3441 .get_station = ath6kl_get_station,
3442 .set_pmksa = ath6kl_set_pmksa,
3443 .del_pmksa = ath6kl_del_pmksa,
3444 .flush_pmksa = ath6kl_flush_pmksa,
3445 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd)
3446#ifdef CONFIG_PM
3447 .suspend = __ath6kl_cfg80211_suspend,
3448 .resume = __ath6kl_cfg80211_resume,
3449#endif
3450 .start_ap = ath6kl_start_ap,
3451 .change_beacon = ath6kl_change_beacon,
3452 .stop_ap = ath6kl_stop_ap,
3453 .del_station = ath6kl_del_station,
3454 .change_station = ath6kl_change_station,
3455 .remain_on_channel = ath6kl_remain_on_channel,
3456 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel,
3457 .mgmt_tx = ath6kl_mgmt_tx,
3458 .mgmt_frame_register = ath6kl_mgmt_frame_register,
3459 .get_antenna = ath6kl_get_antenna,
3460 .sched_scan_start = ath6kl_cfg80211_sscan_start,
3461 .sched_scan_stop = ath6kl_cfg80211_sscan_stop,
3462 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate,
3463 .set_cqm_txe_config = ath6kl_cfg80211_set_txe_config,
3464};
3465
3466void ath6kl_cfg80211_stop(struct ath6kl_vif *vif)
3467{
3468 ath6kl_cfg80211_sscan_disable(vif);
3469
3470 switch (vif->sme_state) {
3471 case SME_DISCONNECTED:
3472 break;
3473 case SME_CONNECTING:
3474 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0,
3475 NULL, 0,
3476 WLAN_STATUS_UNSPECIFIED_FAILURE,
3477 GFP_KERNEL);
3478 break;
3479 case SME_CONNECTED:
3480 cfg80211_disconnected(vif->ndev, 0, NULL, 0, true, GFP_KERNEL);
3481 break;
3482 }
3483
3484 if (vif->ar->state != ATH6KL_STATE_RECOVERY &&
3485 (test_bit(CONNECTED, &vif->flags) ||
3486 test_bit(CONNECT_PEND, &vif->flags)))
3487 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
3488
3489 vif->sme_state = SME_DISCONNECTED;
3490 clear_bit(CONNECTED, &vif->flags);
3491 clear_bit(CONNECT_PEND, &vif->flags);
3492
3493 /* Stop netdev queues, needed during recovery */
3494 netif_stop_queue(vif->ndev);
3495 netif_carrier_off(vif->ndev);
3496
3497 /* disable scanning */
3498 if (vif->ar->state != ATH6KL_STATE_RECOVERY &&
3499 ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF,
3500 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0)
3501 ath6kl_warn("failed to disable scan during stop\n");
3502
3503 ath6kl_cfg80211_scan_complete_event(vif, true);
3504}
3505
3506void ath6kl_cfg80211_stop_all(struct ath6kl *ar)
3507{
3508 struct ath6kl_vif *vif;
3509
3510 vif = ath6kl_vif_first(ar);
3511 if (!vif && ar->state != ATH6KL_STATE_RECOVERY) {
3512 /* save the current power mode before enabling power save */
3513 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
3514
3515 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0)
3516 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n");
3517 return;
3518 }
3519
3520 /*
3521 * FIXME: we should take ar->list_lock to protect changes in the
3522 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop()
3523 * sleeps.
3524 */
3525 list_for_each_entry(vif, &ar->vif_list, list)
3526 ath6kl_cfg80211_stop(vif);
3527}
3528
3529static void ath6kl_cfg80211_reg_notify(struct wiphy *wiphy,
3530 struct regulatory_request *request)
3531{
3532 struct ath6kl *ar = wiphy_priv(wiphy);
3533 u32 rates[IEEE80211_NUM_BANDS];
3534 int ret, i;
3535
3536 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
3537 "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n",
3538 request->alpha2[0], request->alpha2[1],
3539 request->intersect ? " intersect" : "",
3540 request->processed ? " processed" : "",
3541 request->initiator, request->user_reg_hint_type);
3542
3543 if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE)
3544 return;
3545
3546 ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2);
3547 if (ret) {
3548 ath6kl_err("failed to set regdomain: %d\n", ret);
3549 return;
3550 }
3551
3552 /*
3553 * Firmware will apply the regdomain change only after a scan is
3554 * issued and it will send a WMI_REGDOMAIN_EVENTID when it has been
3555 * changed.
3556 */
3557
3558 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
3559 if (wiphy->bands[i])
3560 rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
3561
3562
3563 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false,
3564 false, 0, ATH6KL_FG_SCAN_INTERVAL,
3565 0, NULL, false, rates);
3566 if (ret) {
3567 ath6kl_err("failed to start scan for a regdomain change: %d\n",
3568 ret);
3569 return;
3570 }
3571}
3572
3573static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif)
3574{
3575 vif->aggr_cntxt = aggr_init(vif);
3576 if (!vif->aggr_cntxt) {
3577 ath6kl_err("failed to initialize aggr\n");
3578 return -ENOMEM;
3579 }
3580
3581 setup_timer(&vif->disconnect_timer, disconnect_timer_handler,
3582 (unsigned long) vif->ndev);
3583 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer,
3584 (unsigned long) vif);
3585
3586 set_bit(WMM_ENABLED, &vif->flags);
3587 spin_lock_init(&vif->if_lock);
3588
3589 INIT_LIST_HEAD(&vif->mc_filter);
3590
3591 return 0;
3592}
3593
3594void ath6kl_cfg80211_vif_stop(struct ath6kl_vif *vif, bool wmi_ready)
3595{
3596 static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3597 bool discon_issued;
3598
3599 netif_stop_queue(vif->ndev);
3600
3601 clear_bit(WLAN_ENABLED, &vif->flags);
3602
3603 if (wmi_ready) {
3604 discon_issued = test_bit(CONNECTED, &vif->flags) ||
3605 test_bit(CONNECT_PEND, &vif->flags);
3606 ath6kl_disconnect(vif);
3607 del_timer(&vif->disconnect_timer);
3608
3609 if (discon_issued)
3610 ath6kl_disconnect_event(vif, DISCONNECT_CMD,
3611 (vif->nw_type & AP_NETWORK) ?
3612 bcast_mac : vif->bssid,
3613 0, NULL, 0);
3614 }
3615
3616 if (vif->scan_req) {
3617 cfg80211_scan_done(vif->scan_req, true);
3618 vif->scan_req = NULL;
3619 }
3620
3621 /* need to clean up enhanced bmiss detection fw state */
3622 ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
3623}
3624
3625void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif)
3626{
3627 struct ath6kl *ar = vif->ar;
3628 struct ath6kl_mc_filter *mc_filter, *tmp;
3629
3630 aggr_module_destroy(vif->aggr_cntxt);
3631
3632 ar->avail_idx_map |= BIT(vif->fw_vif_idx);
3633
3634 if (vif->nw_type == ADHOC_NETWORK)
3635 ar->ibss_if_active = false;
3636
3637 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
3638 list_del(&mc_filter->list);
3639 kfree(mc_filter);
3640 }
3641
3642 unregister_netdevice(vif->ndev);
3643
3644 ar->num_vif--;
3645}
3646
3647static const char ath6kl_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
3648 /* Common stats names used by many drivers. */
3649 "tx_pkts_nic", "tx_bytes_nic", "rx_pkts_nic", "rx_bytes_nic",
3650
3651 /* TX stats. */
3652 "d_tx_ucast_pkts", "d_tx_bcast_pkts",
3653 "d_tx_ucast_bytes", "d_tx_bcast_bytes",
3654 "d_tx_rts_ok", "d_tx_error", "d_tx_fail",
3655 "d_tx_retry", "d_tx_multi_retry", "d_tx_rts_fail",
3656 "d_tx_tkip_counter_measures",
3657
3658 /* RX Stats. */
3659 "d_rx_ucast_pkts", "d_rx_ucast_rate", "d_rx_bcast_pkts",
3660 "d_rx_ucast_bytes", "d_rx_bcast_bytes", "d_rx_frag_pkt",
3661 "d_rx_error", "d_rx_crc_err", "d_rx_keycache_miss",
3662 "d_rx_decrypt_crc_err", "d_rx_duplicate_frames",
3663 "d_rx_mic_err", "d_rx_tkip_format_err", "d_rx_ccmp_format_err",
3664 "d_rx_ccmp_replay_err",
3665
3666 /* Misc stats. */
3667 "d_beacon_miss", "d_num_connects", "d_num_disconnects",
3668 "d_beacon_avg_rssi", "d_arp_received", "d_arp_matched",
3669 "d_arp_replied"
3670};
3671
3672#define ATH6KL_STATS_LEN ARRAY_SIZE(ath6kl_gstrings_sta_stats)
3673
3674static int ath6kl_get_sset_count(struct net_device *dev, int sset)
3675{
3676 int rv = 0;
3677
3678 if (sset == ETH_SS_STATS)
3679 rv += ATH6KL_STATS_LEN;
3680
3681 if (rv == 0)
3682 return -EOPNOTSUPP;
3683 return rv;
3684}
3685
3686static void ath6kl_get_stats(struct net_device *dev,
3687 struct ethtool_stats *stats,
3688 u64 *data)
3689{
3690 struct ath6kl_vif *vif = netdev_priv(dev);
3691 struct ath6kl *ar = vif->ar;
3692 int i = 0;
3693 struct target_stats *tgt_stats;
3694
3695 memset(data, 0, sizeof(u64) * ATH6KL_STATS_LEN);
3696
3697 ath6kl_read_tgt_stats(ar, vif);
3698
3699 tgt_stats = &vif->target_stats;
3700
3701 data[i++] = tgt_stats->tx_ucast_pkt + tgt_stats->tx_bcast_pkt;
3702 data[i++] = tgt_stats->tx_ucast_byte + tgt_stats->tx_bcast_byte;
3703 data[i++] = tgt_stats->rx_ucast_pkt + tgt_stats->rx_bcast_pkt;
3704 data[i++] = tgt_stats->rx_ucast_byte + tgt_stats->rx_bcast_byte;
3705
3706 data[i++] = tgt_stats->tx_ucast_pkt;
3707 data[i++] = tgt_stats->tx_bcast_pkt;
3708 data[i++] = tgt_stats->tx_ucast_byte;
3709 data[i++] = tgt_stats->tx_bcast_byte;
3710 data[i++] = tgt_stats->tx_rts_success_cnt;
3711 data[i++] = tgt_stats->tx_err;
3712 data[i++] = tgt_stats->tx_fail_cnt;
3713 data[i++] = tgt_stats->tx_retry_cnt;
3714 data[i++] = tgt_stats->tx_mult_retry_cnt;
3715 data[i++] = tgt_stats->tx_rts_fail_cnt;
3716 data[i++] = tgt_stats->tkip_cnter_measures_invoked;
3717
3718 data[i++] = tgt_stats->rx_ucast_pkt;
3719 data[i++] = tgt_stats->rx_ucast_rate;
3720 data[i++] = tgt_stats->rx_bcast_pkt;
3721 data[i++] = tgt_stats->rx_ucast_byte;
3722 data[i++] = tgt_stats->rx_bcast_byte;
3723 data[i++] = tgt_stats->rx_frgment_pkt;
3724 data[i++] = tgt_stats->rx_err;
3725 data[i++] = tgt_stats->rx_crc_err;
3726 data[i++] = tgt_stats->rx_key_cache_miss;
3727 data[i++] = tgt_stats->rx_decrypt_err;
3728 data[i++] = tgt_stats->rx_dupl_frame;
3729 data[i++] = tgt_stats->tkip_local_mic_fail;
3730 data[i++] = tgt_stats->tkip_fmt_err;
3731 data[i++] = tgt_stats->ccmp_fmt_err;
3732 data[i++] = tgt_stats->ccmp_replays;
3733
3734 data[i++] = tgt_stats->cs_bmiss_cnt;
3735 data[i++] = tgt_stats->cs_connect_cnt;
3736 data[i++] = tgt_stats->cs_discon_cnt;
3737 data[i++] = tgt_stats->cs_ave_beacon_rssi;
3738 data[i++] = tgt_stats->arp_received;
3739 data[i++] = tgt_stats->arp_matched;
3740 data[i++] = tgt_stats->arp_replied;
3741
3742 if (i != ATH6KL_STATS_LEN) {
3743 WARN_ON_ONCE(1);
3744 ath6kl_err("ethtool stats error, i: %d STATS_LEN: %d\n",
3745 i, (int)ATH6KL_STATS_LEN);
3746 }
3747}
3748
3749/* These stats are per NIC, not really per vdev, so we just ignore dev. */
3750static void ath6kl_get_strings(struct net_device *dev, u32 sset, u8 *data)
3751{
3752 int sz_sta_stats = 0;
3753
3754 if (sset == ETH_SS_STATS) {
3755 sz_sta_stats = sizeof(ath6kl_gstrings_sta_stats);
3756 memcpy(data, ath6kl_gstrings_sta_stats, sz_sta_stats);
3757 }
3758}
3759
3760static const struct ethtool_ops ath6kl_ethtool_ops = {
3761 .get_drvinfo = cfg80211_get_drvinfo,
3762 .get_link = ethtool_op_get_link,
3763 .get_strings = ath6kl_get_strings,
3764 .get_ethtool_stats = ath6kl_get_stats,
3765 .get_sset_count = ath6kl_get_sset_count,
3766};
3767
3768struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name,
3769 unsigned char name_assign_type,
3770 enum nl80211_iftype type,
3771 u8 fw_vif_idx, u8 nw_type)
3772{
3773 struct net_device *ndev;
3774 struct ath6kl_vif *vif;
3775
3776 ndev = alloc_netdev(sizeof(*vif), name, name_assign_type, ether_setup);
3777 if (!ndev)
3778 return NULL;
3779
3780 vif = netdev_priv(ndev);
3781 ndev->ieee80211_ptr = &vif->wdev;
3782 vif->wdev.wiphy = ar->wiphy;
3783 vif->ar = ar;
3784 vif->ndev = ndev;
3785 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy));
3786 vif->wdev.netdev = ndev;
3787 vif->wdev.iftype = type;
3788 vif->fw_vif_idx = fw_vif_idx;
3789 vif->nw_type = nw_type;
3790 vif->next_mode = nw_type;
3791 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL;
3792 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME;
3793 vif->bg_scan_period = 0;
3794 vif->htcap[IEEE80211_BAND_2GHZ].ht_enable = true;
3795 vif->htcap[IEEE80211_BAND_5GHZ].ht_enable = true;
3796
3797 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
3798 if (fw_vif_idx != 0) {
3799 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) |
3800 0x2;
3801 if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR,
3802 ar->fw_capabilities))
3803 ndev->dev_addr[4] ^= 0x80;
3804 }
3805
3806 init_netdev(ndev);
3807
3808 ath6kl_init_control_info(vif);
3809
3810 if (ath6kl_cfg80211_vif_init(vif))
3811 goto err;
3812
3813 netdev_set_default_ethtool_ops(ndev, &ath6kl_ethtool_ops);
3814
3815 if (register_netdevice(ndev))
3816 goto err;
3817
3818 ar->avail_idx_map &= ~BIT(fw_vif_idx);
3819 vif->sme_state = SME_DISCONNECTED;
3820 set_bit(WLAN_ENABLED, &vif->flags);
3821 ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
3822
3823 if (type == NL80211_IFTYPE_ADHOC)
3824 ar->ibss_if_active = true;
3825
3826 spin_lock_bh(&ar->list_lock);
3827 list_add_tail(&vif->list, &ar->vif_list);
3828 spin_unlock_bh(&ar->list_lock);
3829
3830 return &vif->wdev;
3831
3832err:
3833 aggr_module_destroy(vif->aggr_cntxt);
3834 free_netdev(ndev);
3835 return NULL;
3836}
3837
3838#ifdef CONFIG_PM
3839static const struct wiphy_wowlan_support ath6kl_wowlan_support = {
3840 .flags = WIPHY_WOWLAN_MAGIC_PKT |
3841 WIPHY_WOWLAN_DISCONNECT |
3842 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
3843 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
3844 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
3845 WIPHY_WOWLAN_4WAY_HANDSHAKE,
3846 .n_patterns = WOW_MAX_FILTERS_PER_LIST,
3847 .pattern_min_len = 1,
3848 .pattern_max_len = WOW_PATTERN_SIZE,
3849};
3850#endif
3851
3852int ath6kl_cfg80211_init(struct ath6kl *ar)
3853{
3854 struct wiphy *wiphy = ar->wiphy;
3855 bool band_2gig = false, band_5gig = false, ht = false;
3856 int ret;
3857
3858 wiphy->mgmt_stypes = ath6kl_mgmt_stypes;
3859
3860 wiphy->max_remain_on_channel_duration = 5000;
3861
3862 /* set device pointer for wiphy */
3863 set_wiphy_dev(wiphy, ar->dev);
3864
3865 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3866 BIT(NL80211_IFTYPE_ADHOC) |
3867 BIT(NL80211_IFTYPE_AP);
3868 if (ar->p2p) {
3869 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) |
3870 BIT(NL80211_IFTYPE_P2P_CLIENT);
3871 }
3872
3873 if (config_enabled(CONFIG_ATH6KL_REGDOMAIN) &&
3874 test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) {
3875 wiphy->reg_notifier = ath6kl_cfg80211_reg_notify;
3876 ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS;
3877 }
3878
3879 /* max num of ssids that can be probed during scanning */
3880 wiphy->max_scan_ssids = MAX_PROBED_SSIDS;
3881
3882 /* max num of ssids that can be matched after scan */
3883 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST,
3884 ar->fw_capabilities))
3885 wiphy->max_match_sets = MAX_PROBED_SSIDS;
3886
3887 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */
3888 switch (ar->hw.cap) {
3889 case WMI_11AN_CAP:
3890 ht = true;
3891 case WMI_11A_CAP:
3892 band_5gig = true;
3893 break;
3894 case WMI_11GN_CAP:
3895 ht = true;
3896 case WMI_11G_CAP:
3897 band_2gig = true;
3898 break;
3899 case WMI_11AGN_CAP:
3900 ht = true;
3901 case WMI_11AG_CAP:
3902 band_2gig = true;
3903 band_5gig = true;
3904 break;
3905 default:
3906 ath6kl_err("invalid phy capability!\n");
3907 return -EINVAL;
3908 }
3909
3910 /*
3911 * Even if the fw has HT support, advertise HT cap only when
3912 * the firmware has support to override RSN capability, otherwise
3913 * 4-way handshake would fail.
3914 */
3915 if (!(ht &&
3916 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
3917 ar->fw_capabilities))) {
3918 ath6kl_band_2ghz.ht_cap.cap = 0;
3919 ath6kl_band_2ghz.ht_cap.ht_supported = false;
3920 ath6kl_band_5ghz.ht_cap.cap = 0;
3921 ath6kl_band_5ghz.ht_cap.ht_supported = false;
3922
3923 if (ht)
3924 ath6kl_err("Firmware lacks RSN-CAP-OVERRIDE, so HT (802.11n) is disabled.");
3925 }
3926
3927 if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES,
3928 ar->fw_capabilities)) {
3929 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3930 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3931 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff;
3932 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff;
3933 ar->hw.tx_ant = 0x3; /* mask, 2 antenna */
3934 ar->hw.rx_ant = 0x3;
3935 } else {
3936 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3937 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3938 ar->hw.tx_ant = 1;
3939 ar->hw.rx_ant = 1;
3940 }
3941
3942 wiphy->available_antennas_tx = ar->hw.tx_ant;
3943 wiphy->available_antennas_rx = ar->hw.rx_ant;
3944
3945 if (band_2gig)
3946 wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz;
3947 if (band_5gig)
3948 wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz;
3949
3950 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3951
3952 wiphy->cipher_suites = cipher_suites;
3953 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
3954
3955#ifdef CONFIG_PM
3956 wiphy->wowlan = &ath6kl_wowlan_support;
3957#endif
3958
3959 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS;
3960
3961 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
3962 WIPHY_FLAG_HAVE_AP_SME |
3963 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3964 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
3965
3966 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities))
3967 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
3968
3969 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT,
3970 ar->fw_capabilities))
3971 ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;
3972
3973 ar->wiphy->probe_resp_offload =
3974 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3975 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3976 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3977
3978 ret = wiphy_register(wiphy);
3979 if (ret < 0) {
3980 ath6kl_err("couldn't register wiphy device\n");
3981 return ret;
3982 }
3983
3984 ar->wiphy_registered = true;
3985
3986 return 0;
3987}
3988
3989void ath6kl_cfg80211_cleanup(struct ath6kl *ar)
3990{
3991 wiphy_unregister(ar->wiphy);
3992
3993 ar->wiphy_registered = false;
3994}
3995
3996struct ath6kl *ath6kl_cfg80211_create(void)
3997{
3998 struct ath6kl *ar;
3999 struct wiphy *wiphy;
4000
4001 /* create a new wiphy for use with cfg80211 */
4002 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));
4003
4004 if (!wiphy) {
4005 ath6kl_err("couldn't allocate wiphy device\n");
4006 return NULL;
4007 }
4008
4009 ar = wiphy_priv(wiphy);
4010 ar->wiphy = wiphy;
4011
4012 return ar;
4013}
4014
4015/* Note: ar variable must not be accessed after calling this! */
4016void ath6kl_cfg80211_destroy(struct ath6kl *ar)
4017{
4018 int i;
4019
4020 for (i = 0; i < AP_MAX_NUM_STA; i++)
4021 kfree(ar->sta_list[i].aggr_conn);
4022
4023 wiphy_free(ar->wiphy);
4024}
4025