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