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cfg80211: constify MAC addresses in cfg80211 ops
[mirror_ubuntu-bionic-kernel.git] / drivers / net / wireless / ath / ath6kl / cfg80211.c
1 /*
2 * Copyright (c) 2004-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
19
20 #include <linux/moduleparam.h>
21 #include <linux/inetdevice.h>
22 #include <linux/export.h>
23
24 #include "core.h"
25 #include "cfg80211.h"
26 #include "debug.h"
27 #include "hif-ops.h"
28 #include "testmode.h"
29
30 #define RATETAB_ENT(_rate, _rateid, _flags) { \
31 .bitrate = (_rate), \
32 .flags = (_flags), \
33 .hw_value = (_rateid), \
34 }
35
36 #define CHAN2G(_channel, _freq, _flags) { \
37 .band = IEEE80211_BAND_2GHZ, \
38 .hw_value = (_channel), \
39 .center_freq = (_freq), \
40 .flags = (_flags), \
41 .max_antenna_gain = 0, \
42 .max_power = 30, \
43 }
44
45 #define CHAN5G(_channel, _flags) { \
46 .band = IEEE80211_BAND_5GHZ, \
47 .hw_value = (_channel), \
48 .center_freq = 5000 + (5 * (_channel)), \
49 .flags = (_flags), \
50 .max_antenna_gain = 0, \
51 .max_power = 30, \
52 }
53
54 #define DEFAULT_BG_SCAN_PERIOD 60
55
56 struct ath6kl_cfg80211_match_probe_ssid {
57 struct cfg80211_ssid ssid;
58 u8 flag;
59 };
60
61 static struct ieee80211_rate ath6kl_rates[] = {
62 RATETAB_ENT(10, 0x1, 0),
63 RATETAB_ENT(20, 0x2, 0),
64 RATETAB_ENT(55, 0x4, 0),
65 RATETAB_ENT(110, 0x8, 0),
66 RATETAB_ENT(60, 0x10, 0),
67 RATETAB_ENT(90, 0x20, 0),
68 RATETAB_ENT(120, 0x40, 0),
69 RATETAB_ENT(180, 0x80, 0),
70 RATETAB_ENT(240, 0x100, 0),
71 RATETAB_ENT(360, 0x200, 0),
72 RATETAB_ENT(480, 0x400, 0),
73 RATETAB_ENT(540, 0x800, 0),
74 };
75
76 #define ath6kl_a_rates (ath6kl_rates + 4)
77 #define ath6kl_a_rates_size 8
78 #define ath6kl_g_rates (ath6kl_rates + 0)
79 #define ath6kl_g_rates_size 12
80
81 #define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20
82 #define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \
83 IEEE80211_HT_CAP_SGI_20 | \
84 IEEE80211_HT_CAP_SGI_40)
85
86 static struct ieee80211_channel ath6kl_2ghz_channels[] = {
87 CHAN2G(1, 2412, 0),
88 CHAN2G(2, 2417, 0),
89 CHAN2G(3, 2422, 0),
90 CHAN2G(4, 2427, 0),
91 CHAN2G(5, 2432, 0),
92 CHAN2G(6, 2437, 0),
93 CHAN2G(7, 2442, 0),
94 CHAN2G(8, 2447, 0),
95 CHAN2G(9, 2452, 0),
96 CHAN2G(10, 2457, 0),
97 CHAN2G(11, 2462, 0),
98 CHAN2G(12, 2467, 0),
99 CHAN2G(13, 2472, 0),
100 CHAN2G(14, 2484, 0),
101 };
102
103 static struct ieee80211_channel ath6kl_5ghz_a_channels[] = {
104 CHAN5G(34, 0), CHAN5G(36, 0),
105 CHAN5G(38, 0), CHAN5G(40, 0),
106 CHAN5G(42, 0), CHAN5G(44, 0),
107 CHAN5G(46, 0), CHAN5G(48, 0),
108 CHAN5G(52, 0), CHAN5G(56, 0),
109 CHAN5G(60, 0), CHAN5G(64, 0),
110 CHAN5G(100, 0), CHAN5G(104, 0),
111 CHAN5G(108, 0), CHAN5G(112, 0),
112 CHAN5G(116, 0), CHAN5G(120, 0),
113 CHAN5G(124, 0), CHAN5G(128, 0),
114 CHAN5G(132, 0), CHAN5G(136, 0),
115 CHAN5G(140, 0), CHAN5G(149, 0),
116 CHAN5G(153, 0), CHAN5G(157, 0),
117 CHAN5G(161, 0), CHAN5G(165, 0),
118 CHAN5G(184, 0), CHAN5G(188, 0),
119 CHAN5G(192, 0), CHAN5G(196, 0),
120 CHAN5G(200, 0), CHAN5G(204, 0),
121 CHAN5G(208, 0), CHAN5G(212, 0),
122 CHAN5G(216, 0),
123 };
124
125 static struct ieee80211_supported_band ath6kl_band_2ghz = {
126 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels),
127 .channels = ath6kl_2ghz_channels,
128 .n_bitrates = ath6kl_g_rates_size,
129 .bitrates = ath6kl_g_rates,
130 .ht_cap.cap = ath6kl_g_htcap,
131 .ht_cap.ht_supported = true,
132 };
133
134 static struct ieee80211_supported_band ath6kl_band_5ghz = {
135 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels),
136 .channels = ath6kl_5ghz_a_channels,
137 .n_bitrates = ath6kl_a_rates_size,
138 .bitrates = ath6kl_a_rates,
139 .ht_cap.cap = ath6kl_a_htcap,
140 .ht_cap.ht_supported = true,
141 };
142
143 #define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */
144
145 /* returns true if scheduled scan was stopped */
146 static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif)
147 {
148 struct ath6kl *ar = vif->ar;
149
150 if (!test_and_clear_bit(SCHED_SCANNING, &vif->flags))
151 return false;
152
153 del_timer_sync(&vif->sched_scan_timer);
154
155 if (ar->state == ATH6KL_STATE_RECOVERY)
156 return true;
157
158 ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, false);
159
160 return true;
161 }
162
163 static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif)
164 {
165 struct ath6kl *ar = vif->ar;
166 bool stopped;
167
168 stopped = __ath6kl_cfg80211_sscan_stop(vif);
169
170 if (!stopped)
171 return;
172
173 cfg80211_sched_scan_stopped(ar->wiphy);
174 }
175
176 static int ath6kl_set_wpa_version(struct ath6kl_vif *vif,
177 enum nl80211_wpa_versions wpa_version)
178 {
179 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version);
180
181 if (!wpa_version) {
182 vif->auth_mode = NONE_AUTH;
183 } else if (wpa_version & NL80211_WPA_VERSION_2) {
184 vif->auth_mode = WPA2_AUTH;
185 } else if (wpa_version & NL80211_WPA_VERSION_1) {
186 vif->auth_mode = WPA_AUTH;
187 } else {
188 ath6kl_err("%s: %u not supported\n", __func__, wpa_version);
189 return -ENOTSUPP;
190 }
191
192 return 0;
193 }
194
195 static int ath6kl_set_auth_type(struct ath6kl_vif *vif,
196 enum nl80211_auth_type auth_type)
197 {
198 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type);
199
200 switch (auth_type) {
201 case NL80211_AUTHTYPE_OPEN_SYSTEM:
202 vif->dot11_auth_mode = OPEN_AUTH;
203 break;
204 case NL80211_AUTHTYPE_SHARED_KEY:
205 vif->dot11_auth_mode = SHARED_AUTH;
206 break;
207 case NL80211_AUTHTYPE_NETWORK_EAP:
208 vif->dot11_auth_mode = LEAP_AUTH;
209 break;
210
211 case NL80211_AUTHTYPE_AUTOMATIC:
212 vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH;
213 break;
214
215 default:
216 ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type);
217 return -ENOTSUPP;
218 }
219
220 return 0;
221 }
222
223 static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast)
224 {
225 u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto;
226 u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len :
227 &vif->grp_crypto_len;
228
229 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n",
230 __func__, cipher, ucast);
231
232 switch (cipher) {
233 case 0:
234 /* our own hack to use value 0 as no crypto used */
235 *ar_cipher = NONE_CRYPT;
236 *ar_cipher_len = 0;
237 break;
238 case WLAN_CIPHER_SUITE_WEP40:
239 *ar_cipher = WEP_CRYPT;
240 *ar_cipher_len = 5;
241 break;
242 case WLAN_CIPHER_SUITE_WEP104:
243 *ar_cipher = WEP_CRYPT;
244 *ar_cipher_len = 13;
245 break;
246 case WLAN_CIPHER_SUITE_TKIP:
247 *ar_cipher = TKIP_CRYPT;
248 *ar_cipher_len = 0;
249 break;
250 case WLAN_CIPHER_SUITE_CCMP:
251 *ar_cipher = AES_CRYPT;
252 *ar_cipher_len = 0;
253 break;
254 case WLAN_CIPHER_SUITE_SMS4:
255 *ar_cipher = WAPI_CRYPT;
256 *ar_cipher_len = 0;
257 break;
258 default:
259 ath6kl_err("cipher 0x%x not supported\n", cipher);
260 return -ENOTSUPP;
261 }
262
263 return 0;
264 }
265
266 static void ath6kl_set_key_mgmt(struct ath6kl_vif *vif, u32 key_mgmt)
267 {
268 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt);
269
270 if (key_mgmt == WLAN_AKM_SUITE_PSK) {
271 if (vif->auth_mode == WPA_AUTH)
272 vif->auth_mode = WPA_PSK_AUTH;
273 else if (vif->auth_mode == WPA2_AUTH)
274 vif->auth_mode = WPA2_PSK_AUTH;
275 } else if (key_mgmt == 0x00409600) {
276 if (vif->auth_mode == WPA_AUTH)
277 vif->auth_mode = WPA_AUTH_CCKM;
278 else if (vif->auth_mode == WPA2_AUTH)
279 vif->auth_mode = WPA2_AUTH_CCKM;
280 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) {
281 vif->auth_mode = NONE_AUTH;
282 }
283 }
284
285 static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif)
286 {
287 struct ath6kl *ar = vif->ar;
288
289 if (!test_bit(WMI_READY, &ar->flag)) {
290 ath6kl_err("wmi is not ready\n");
291 return false;
292 }
293
294 if (!test_bit(WLAN_ENABLED, &vif->flags)) {
295 ath6kl_err("wlan disabled\n");
296 return false;
297 }
298
299 return true;
300 }
301
302 static bool ath6kl_is_wpa_ie(const u8 *pos)
303 {
304 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
305 pos[2] == 0x00 && pos[3] == 0x50 &&
306 pos[4] == 0xf2 && pos[5] == 0x01;
307 }
308
309 static bool ath6kl_is_rsn_ie(const u8 *pos)
310 {
311 return pos[0] == WLAN_EID_RSN;
312 }
313
314 static bool ath6kl_is_wps_ie(const u8 *pos)
315 {
316 return (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
317 pos[1] >= 4 &&
318 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 &&
319 pos[5] == 0x04);
320 }
321
322 static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies,
323 size_t ies_len)
324 {
325 struct ath6kl *ar = vif->ar;
326 const u8 *pos;
327 u8 *buf = NULL;
328 size_t len = 0;
329 int ret;
330
331 /*
332 * Clear previously set flag
333 */
334
335 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
336
337 /*
338 * Filter out RSN/WPA IE(s)
339 */
340
341 if (ies && ies_len) {
342 buf = kmalloc(ies_len, GFP_KERNEL);
343 if (buf == NULL)
344 return -ENOMEM;
345 pos = ies;
346
347 while (pos + 1 < ies + ies_len) {
348 if (pos + 2 + pos[1] > ies + ies_len)
349 break;
350 if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) {
351 memcpy(buf + len, pos, 2 + pos[1]);
352 len += 2 + pos[1];
353 }
354
355 if (ath6kl_is_wps_ie(pos))
356 ar->connect_ctrl_flags |= CONNECT_WPS_FLAG;
357
358 pos += 2 + pos[1];
359 }
360 }
361
362 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
363 WMI_FRAME_ASSOC_REQ, buf, len);
364 kfree(buf);
365 return ret;
366 }
367
368 static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type)
369 {
370 switch (type) {
371 case NL80211_IFTYPE_STATION:
372 case NL80211_IFTYPE_P2P_CLIENT:
373 *nw_type = INFRA_NETWORK;
374 break;
375 case NL80211_IFTYPE_ADHOC:
376 *nw_type = ADHOC_NETWORK;
377 break;
378 case NL80211_IFTYPE_AP:
379 case NL80211_IFTYPE_P2P_GO:
380 *nw_type = AP_NETWORK;
381 break;
382 default:
383 ath6kl_err("invalid interface type %u\n", type);
384 return -ENOTSUPP;
385 }
386
387 return 0;
388 }
389
390 static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type,
391 u8 *if_idx, u8 *nw_type)
392 {
393 int i;
394
395 if (ath6kl_nliftype_to_drv_iftype(type, nw_type))
396 return false;
397
398 if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) &&
399 ar->num_vif))
400 return false;
401
402 if (type == NL80211_IFTYPE_STATION ||
403 type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) {
404 for (i = 0; i < ar->vif_max; i++) {
405 if ((ar->avail_idx_map) & BIT(i)) {
406 *if_idx = i;
407 return true;
408 }
409 }
410 }
411
412 if (type == NL80211_IFTYPE_P2P_CLIENT ||
413 type == NL80211_IFTYPE_P2P_GO) {
414 for (i = ar->max_norm_iface; i < ar->vif_max; i++) {
415 if ((ar->avail_idx_map) & BIT(i)) {
416 *if_idx = i;
417 return true;
418 }
419 }
420 }
421
422 return false;
423 }
424
425 static bool ath6kl_is_tx_pending(struct ath6kl *ar)
426 {
427 return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0;
428 }
429
430 static void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif,
431 bool enable)
432 {
433 int err;
434
435 if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag)))
436 return;
437
438 if (vif->nw_type != INFRA_NETWORK)
439 return;
440
441 if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE,
442 vif->ar->fw_capabilities))
443 return;
444
445 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n",
446 enable ? "enable" : "disable");
447
448 err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi,
449 vif->fw_vif_idx, enable);
450 if (err)
451 ath6kl_err("failed to %s enhanced bmiss detection: %d\n",
452 enable ? "enable" : "disable", err);
453 }
454
455 static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
456 struct cfg80211_connect_params *sme)
457 {
458 struct ath6kl *ar = ath6kl_priv(dev);
459 struct ath6kl_vif *vif = netdev_priv(dev);
460 int status;
461 u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE;
462 u16 interval;
463
464 ath6kl_cfg80211_sscan_disable(vif);
465
466 vif->sme_state = SME_CONNECTING;
467
468 if (!ath6kl_cfg80211_ready(vif))
469 return -EIO;
470
471 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
472 ath6kl_err("destroy in progress\n");
473 return -EBUSY;
474 }
475
476 if (test_bit(SKIP_SCAN, &ar->flag) &&
477 ((sme->channel && sme->channel->center_freq == 0) ||
478 (sme->bssid && is_zero_ether_addr(sme->bssid)))) {
479 ath6kl_err("SkipScan: channel or bssid invalid\n");
480 return -EINVAL;
481 }
482
483 if (down_interruptible(&ar->sem)) {
484 ath6kl_err("busy, couldn't get access\n");
485 return -ERESTARTSYS;
486 }
487
488 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
489 ath6kl_err("busy, destroy in progress\n");
490 up(&ar->sem);
491 return -EBUSY;
492 }
493
494 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) {
495 /*
496 * sleep until the command queue drains
497 */
498 wait_event_interruptible_timeout(ar->event_wq,
499 ath6kl_is_tx_pending(ar),
500 WMI_TIMEOUT);
501 if (signal_pending(current)) {
502 ath6kl_err("cmd queue drain timeout\n");
503 up(&ar->sem);
504 return -EINTR;
505 }
506 }
507
508 status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len);
509 if (status) {
510 up(&ar->sem);
511 return status;
512 }
513
514 if (sme->ie == NULL || sme->ie_len == 0)
515 ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG;
516
517 if (test_bit(CONNECTED, &vif->flags) &&
518 vif->ssid_len == sme->ssid_len &&
519 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
520 vif->reconnect_flag = true;
521 status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx,
522 vif->req_bssid,
523 vif->ch_hint);
524
525 up(&ar->sem);
526 if (status) {
527 ath6kl_err("wmi_reconnect_cmd failed\n");
528 return -EIO;
529 }
530 return 0;
531 } else if (vif->ssid_len == sme->ssid_len &&
532 !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) {
533 ath6kl_disconnect(vif);
534 }
535
536 memset(vif->ssid, 0, sizeof(vif->ssid));
537 vif->ssid_len = sme->ssid_len;
538 memcpy(vif->ssid, sme->ssid, sme->ssid_len);
539
540 if (sme->channel)
541 vif->ch_hint = sme->channel->center_freq;
542
543 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
544 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid))
545 memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid));
546
547 ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions);
548
549 status = ath6kl_set_auth_type(vif, sme->auth_type);
550 if (status) {
551 up(&ar->sem);
552 return status;
553 }
554
555 if (sme->crypto.n_ciphers_pairwise)
556 ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true);
557 else
558 ath6kl_set_cipher(vif, 0, true);
559
560 ath6kl_set_cipher(vif, sme->crypto.cipher_group, false);
561
562 if (sme->crypto.n_akm_suites)
563 ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]);
564
565 if ((sme->key_len) &&
566 (vif->auth_mode == NONE_AUTH) &&
567 (vif->prwise_crypto == WEP_CRYPT)) {
568 struct ath6kl_key *key = NULL;
569
570 if (sme->key_idx > WMI_MAX_KEY_INDEX) {
571 ath6kl_err("key index %d out of bounds\n",
572 sme->key_idx);
573 up(&ar->sem);
574 return -ENOENT;
575 }
576
577 key = &vif->keys[sme->key_idx];
578 key->key_len = sme->key_len;
579 memcpy(key->key, sme->key, key->key_len);
580 key->cipher = vif->prwise_crypto;
581 vif->def_txkey_index = sme->key_idx;
582
583 ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx,
584 vif->prwise_crypto,
585 GROUP_USAGE | TX_USAGE,
586 key->key_len,
587 NULL, 0,
588 key->key, KEY_OP_INIT_VAL, NULL,
589 NO_SYNC_WMIFLAG);
590 }
591
592 if (!ar->usr_bss_filter) {
593 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
594 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
595 ALL_BSS_FILTER, 0) != 0) {
596 ath6kl_err("couldn't set bss filtering\n");
597 up(&ar->sem);
598 return -EIO;
599 }
600 }
601
602 vif->nw_type = vif->next_mode;
603
604 /* enable enhanced bmiss detection if applicable */
605 ath6kl_cfg80211_sta_bmiss_enhance(vif, true);
606
607 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT)
608 nw_subtype = SUBTYPE_P2PCLIENT;
609
610 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
611 "%s: connect called with authmode %d dot11 auth %d"
612 " PW crypto %d PW crypto len %d GRP crypto %d"
613 " GRP crypto len %d channel hint %u\n",
614 __func__,
615 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
616 vif->prwise_crypto_len, vif->grp_crypto,
617 vif->grp_crypto_len, vif->ch_hint);
618
619 vif->reconnect_flag = 0;
620
621 if (vif->nw_type == INFRA_NETWORK) {
622 interval = max_t(u16, vif->listen_intvl_t,
623 ATH6KL_MAX_WOW_LISTEN_INTL);
624 status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
625 interval,
626 0);
627 if (status) {
628 ath6kl_err("couldn't set listen intervel\n");
629 up(&ar->sem);
630 return status;
631 }
632 }
633
634 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
635 vif->dot11_auth_mode, vif->auth_mode,
636 vif->prwise_crypto,
637 vif->prwise_crypto_len,
638 vif->grp_crypto, vif->grp_crypto_len,
639 vif->ssid_len, vif->ssid,
640 vif->req_bssid, vif->ch_hint,
641 ar->connect_ctrl_flags, nw_subtype);
642
643 if (sme->bg_scan_period == 0) {
644 /* disable background scan if period is 0 */
645 sme->bg_scan_period = 0xffff;
646 } else if (sme->bg_scan_period == -1) {
647 /* configure default value if not specified */
648 sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
649 }
650
651 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0,
652 sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
653
654 up(&ar->sem);
655
656 if (status == -EINVAL) {
657 memset(vif->ssid, 0, sizeof(vif->ssid));
658 vif->ssid_len = 0;
659 ath6kl_err("invalid request\n");
660 return -ENOENT;
661 } else if (status) {
662 ath6kl_err("ath6kl_wmi_connect_cmd failed\n");
663 return -EIO;
664 }
665
666 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) &&
667 ((vif->auth_mode == WPA_PSK_AUTH) ||
668 (vif->auth_mode == WPA2_PSK_AUTH))) {
669 mod_timer(&vif->disconnect_timer,
670 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL));
671 }
672
673 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD;
674 set_bit(CONNECT_PEND, &vif->flags);
675
676 return 0;
677 }
678
679 static struct cfg80211_bss *
680 ath6kl_add_bss_if_needed(struct ath6kl_vif *vif,
681 enum network_type nw_type,
682 const u8 *bssid,
683 struct ieee80211_channel *chan,
684 const u8 *beacon_ie,
685 size_t beacon_ie_len)
686 {
687 struct ath6kl *ar = vif->ar;
688 struct cfg80211_bss *bss;
689 u16 cap_mask, cap_val;
690 u8 *ie;
691
692 if (nw_type & ADHOC_NETWORK) {
693 cap_mask = WLAN_CAPABILITY_IBSS;
694 cap_val = WLAN_CAPABILITY_IBSS;
695 } else {
696 cap_mask = WLAN_CAPABILITY_ESS;
697 cap_val = WLAN_CAPABILITY_ESS;
698 }
699
700 bss = cfg80211_get_bss(ar->wiphy, chan, bssid,
701 vif->ssid, vif->ssid_len,
702 cap_mask, cap_val);
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 bssid, 0, cap_val, 100,
721 ie, 2 + vif->ssid_len + beacon_ie_len,
722 0, GFP_KERNEL);
723 if (bss)
724 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
725 "added bss %pM to cfg80211\n", bssid);
726 kfree(ie);
727 } else
728 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n");
729
730 return bss;
731 }
732
733 void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, u16 channel,
734 u8 *bssid, u16 listen_intvl,
735 u16 beacon_intvl,
736 enum network_type nw_type,
737 u8 beacon_ie_len, u8 assoc_req_len,
738 u8 assoc_resp_len, u8 *assoc_info)
739 {
740 struct ieee80211_channel *chan;
741 struct ath6kl *ar = vif->ar;
742 struct cfg80211_bss *bss;
743
744 /* capinfo + listen interval */
745 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16);
746
747 /* capinfo + status code + associd */
748 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16);
749
750 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset;
751 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len +
752 assoc_resp_ie_offset;
753
754 assoc_req_len -= assoc_req_ie_offset;
755 assoc_resp_len -= assoc_resp_ie_offset;
756
757 /*
758 * Store Beacon interval here; DTIM period will be available only once
759 * a Beacon frame from the AP is seen.
760 */
761 vif->assoc_bss_beacon_int = beacon_intvl;
762 clear_bit(DTIM_PERIOD_AVAIL, &vif->flags);
763
764 if (nw_type & ADHOC_NETWORK) {
765 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) {
766 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
767 "%s: ath6k not in ibss mode\n", __func__);
768 return;
769 }
770 }
771
772 if (nw_type & INFRA_NETWORK) {
773 if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
774 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
775 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
776 "%s: ath6k not in station mode\n", __func__);
777 return;
778 }
779 }
780
781 chan = ieee80211_get_channel(ar->wiphy, (int) channel);
782
783 bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan,
784 assoc_info, beacon_ie_len);
785 if (!bss) {
786 ath6kl_err("could not add cfg80211 bss entry\n");
787 return;
788 }
789
790 if (nw_type & ADHOC_NETWORK) {
791 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n",
792 nw_type & ADHOC_CREATOR ? "creator" : "joiner");
793 cfg80211_ibss_joined(vif->ndev, bssid, chan, GFP_KERNEL);
794 cfg80211_put_bss(ar->wiphy, bss);
795 return;
796 }
797
798 if (vif->sme_state == SME_CONNECTING) {
799 /* inform connect result to cfg80211 */
800 vif->sme_state = SME_CONNECTED;
801 cfg80211_connect_result(vif->ndev, bssid,
802 assoc_req_ie, assoc_req_len,
803 assoc_resp_ie, assoc_resp_len,
804 WLAN_STATUS_SUCCESS, GFP_KERNEL);
805 cfg80211_put_bss(ar->wiphy, bss);
806 } else if (vif->sme_state == SME_CONNECTED) {
807 /* inform roam event to cfg80211 */
808 cfg80211_roamed_bss(vif->ndev, bss, assoc_req_ie, assoc_req_len,
809 assoc_resp_ie, assoc_resp_len, GFP_KERNEL);
810 }
811 }
812
813 static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy,
814 struct net_device *dev, u16 reason_code)
815 {
816 struct ath6kl *ar = ath6kl_priv(dev);
817 struct ath6kl_vif *vif = netdev_priv(dev);
818
819 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__,
820 reason_code);
821
822 ath6kl_cfg80211_sscan_disable(vif);
823
824 if (!ath6kl_cfg80211_ready(vif))
825 return -EIO;
826
827 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
828 ath6kl_err("busy, destroy in progress\n");
829 return -EBUSY;
830 }
831
832 if (down_interruptible(&ar->sem)) {
833 ath6kl_err("busy, couldn't get access\n");
834 return -ERESTARTSYS;
835 }
836
837 vif->reconnect_flag = 0;
838 ath6kl_disconnect(vif);
839 memset(vif->ssid, 0, sizeof(vif->ssid));
840 vif->ssid_len = 0;
841
842 if (!test_bit(SKIP_SCAN, &ar->flag))
843 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
844
845 up(&ar->sem);
846
847 vif->sme_state = SME_DISCONNECTED;
848
849 return 0;
850 }
851
852 void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason,
853 u8 *bssid, u8 assoc_resp_len,
854 u8 *assoc_info, u16 proto_reason)
855 {
856 struct ath6kl *ar = vif->ar;
857
858 if (vif->scan_req) {
859 cfg80211_scan_done(vif->scan_req, true);
860 vif->scan_req = NULL;
861 }
862
863 if (vif->nw_type & ADHOC_NETWORK) {
864 if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC)
865 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
866 "%s: ath6k not in ibss mode\n", __func__);
867 return;
868 }
869
870 if (vif->nw_type & INFRA_NETWORK) {
871 if (vif->wdev.iftype != NL80211_IFTYPE_STATION &&
872 vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) {
873 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
874 "%s: ath6k not in station mode\n", __func__);
875 return;
876 }
877 }
878
879 clear_bit(CONNECT_PEND, &vif->flags);
880
881 if (vif->sme_state == SME_CONNECTING) {
882 cfg80211_connect_result(vif->ndev,
883 bssid, NULL, 0,
884 NULL, 0,
885 WLAN_STATUS_UNSPECIFIED_FAILURE,
886 GFP_KERNEL);
887 } else if (vif->sme_state == SME_CONNECTED) {
888 cfg80211_disconnected(vif->ndev, proto_reason,
889 NULL, 0, GFP_KERNEL);
890 }
891
892 vif->sme_state = SME_DISCONNECTED;
893
894 /*
895 * Send a disconnect command to target when a disconnect event is
896 * received with reason code other than 3 (DISCONNECT_CMD - disconnect
897 * request from host) to make the firmware stop trying to connect even
898 * after giving disconnect event. There will be one more disconnect
899 * event for this disconnect command with reason code DISCONNECT_CMD
900 * which won't be notified to cfg80211.
901 */
902 if (reason != DISCONNECT_CMD)
903 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
904 }
905
906 static int ath6kl_set_probed_ssids(struct ath6kl *ar,
907 struct ath6kl_vif *vif,
908 struct cfg80211_ssid *ssids, int n_ssids,
909 struct cfg80211_match_set *match_set,
910 int n_match_ssid)
911 {
912 u8 i, j, index_to_add, ssid_found = false;
913 struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS];
914
915 memset(ssid_list, 0, sizeof(ssid_list));
916
917 if (n_ssids > MAX_PROBED_SSIDS ||
918 n_match_ssid > MAX_PROBED_SSIDS)
919 return -EINVAL;
920
921 for (i = 0; i < n_ssids; i++) {
922 memcpy(ssid_list[i].ssid.ssid,
923 ssids[i].ssid,
924 ssids[i].ssid_len);
925 ssid_list[i].ssid.ssid_len = ssids[i].ssid_len;
926
927 if (ssids[i].ssid_len)
928 ssid_list[i].flag = SPECIFIC_SSID_FLAG;
929 else
930 ssid_list[i].flag = ANY_SSID_FLAG;
931
932 if (n_match_ssid == 0)
933 ssid_list[i].flag |= MATCH_SSID_FLAG;
934 }
935
936 index_to_add = i;
937
938 for (i = 0; i < n_match_ssid; i++) {
939 ssid_found = false;
940
941 for (j = 0; j < n_ssids; j++) {
942 if ((match_set[i].ssid.ssid_len ==
943 ssid_list[j].ssid.ssid_len) &&
944 (!memcmp(ssid_list[j].ssid.ssid,
945 match_set[i].ssid.ssid,
946 match_set[i].ssid.ssid_len))) {
947 ssid_list[j].flag |= MATCH_SSID_FLAG;
948 ssid_found = true;
949 break;
950 }
951 }
952
953 if (ssid_found)
954 continue;
955
956 if (index_to_add >= MAX_PROBED_SSIDS)
957 continue;
958
959 ssid_list[index_to_add].ssid.ssid_len =
960 match_set[i].ssid.ssid_len;
961 memcpy(ssid_list[index_to_add].ssid.ssid,
962 match_set[i].ssid.ssid,
963 match_set[i].ssid.ssid_len);
964 ssid_list[index_to_add].flag |= MATCH_SSID_FLAG;
965 index_to_add++;
966 }
967
968 for (i = 0; i < index_to_add; i++) {
969 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i,
970 ssid_list[i].flag,
971 ssid_list[i].ssid.ssid_len,
972 ssid_list[i].ssid.ssid);
973
974 }
975
976 /* Make sure no old entries are left behind */
977 for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) {
978 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i,
979 DISABLE_SSID_FLAG, 0, NULL);
980 }
981
982 return 0;
983 }
984
985 static int ath6kl_cfg80211_scan(struct wiphy *wiphy,
986 struct cfg80211_scan_request *request)
987 {
988 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev);
989 struct ath6kl *ar = ath6kl_priv(vif->ndev);
990 s8 n_channels = 0;
991 u16 *channels = NULL;
992 int ret = 0;
993 u32 force_fg_scan = 0;
994
995 if (!ath6kl_cfg80211_ready(vif))
996 return -EIO;
997
998 ath6kl_cfg80211_sscan_disable(vif);
999
1000 if (!ar->usr_bss_filter) {
1001 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
1002 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1003 ALL_BSS_FILTER, 0);
1004 if (ret) {
1005 ath6kl_err("couldn't set bss filtering\n");
1006 return ret;
1007 }
1008 }
1009
1010 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
1011 request->n_ssids, NULL, 0);
1012 if (ret < 0)
1013 return ret;
1014
1015 /* this also clears IE in fw if it's not set */
1016 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
1017 WMI_FRAME_PROBE_REQ,
1018 request->ie, request->ie_len);
1019 if (ret) {
1020 ath6kl_err("failed to set Probe Request appie for scan\n");
1021 return ret;
1022 }
1023
1024 /*
1025 * Scan only the requested channels if the request specifies a set of
1026 * channels. If the list is longer than the target supports, do not
1027 * configure the list and instead, scan all available channels.
1028 */
1029 if (request->n_channels > 0 &&
1030 request->n_channels <= WMI_MAX_CHANNELS) {
1031 u8 i;
1032
1033 n_channels = request->n_channels;
1034
1035 channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL);
1036 if (channels == NULL) {
1037 ath6kl_warn("failed to set scan channels, scan all channels");
1038 n_channels = 0;
1039 }
1040
1041 for (i = 0; i < n_channels; i++)
1042 channels[i] = request->channels[i]->center_freq;
1043 }
1044
1045 if (test_bit(CONNECTED, &vif->flags))
1046 force_fg_scan = 1;
1047
1048 vif->scan_req = request;
1049
1050 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx,
1051 WMI_LONG_SCAN, force_fg_scan,
1052 false, 0,
1053 ATH6KL_FG_SCAN_INTERVAL,
1054 n_channels, channels,
1055 request->no_cck,
1056 request->rates);
1057 if (ret) {
1058 ath6kl_err("failed to start scan: %d\n", ret);
1059 vif->scan_req = NULL;
1060 }
1061
1062 kfree(channels);
1063
1064 return ret;
1065 }
1066
1067 void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted)
1068 {
1069 struct ath6kl *ar = vif->ar;
1070 int i;
1071
1072 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__,
1073 aborted ? " aborted" : "");
1074
1075 if (!vif->scan_req)
1076 return;
1077
1078 if (aborted)
1079 goto out;
1080
1081 if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) {
1082 for (i = 0; i < vif->scan_req->n_ssids; i++) {
1083 ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx,
1084 i + 1, DISABLE_SSID_FLAG,
1085 0, NULL);
1086 }
1087 }
1088
1089 out:
1090 cfg80211_scan_done(vif->scan_req, aborted);
1091 vif->scan_req = NULL;
1092 }
1093
1094 void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq,
1095 enum wmi_phy_mode mode)
1096 {
1097 struct cfg80211_chan_def chandef;
1098
1099 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1100 "channel switch notify nw_type %d freq %d mode %d\n",
1101 vif->nw_type, freq, mode);
1102
1103 cfg80211_chandef_create(&chandef,
1104 ieee80211_get_channel(vif->ar->wiphy, freq),
1105 (mode == WMI_11G_HT20) ?
1106 NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT);
1107
1108 mutex_lock(&vif->wdev.mtx);
1109 cfg80211_ch_switch_notify(vif->ndev, &chandef);
1110 mutex_unlock(&vif->wdev.mtx);
1111 }
1112
1113 static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
1114 u8 key_index, bool pairwise,
1115 const u8 *mac_addr,
1116 struct key_params *params)
1117 {
1118 struct ath6kl *ar = ath6kl_priv(ndev);
1119 struct ath6kl_vif *vif = netdev_priv(ndev);
1120 struct ath6kl_key *key = NULL;
1121 int seq_len;
1122 u8 key_usage;
1123 u8 key_type;
1124
1125 if (!ath6kl_cfg80211_ready(vif))
1126 return -EIO;
1127
1128 if (params->cipher == CCKM_KRK_CIPHER_SUITE) {
1129 if (params->key_len != WMI_KRK_LEN)
1130 return -EINVAL;
1131 return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx,
1132 params->key);
1133 }
1134
1135 if (key_index > WMI_MAX_KEY_INDEX) {
1136 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1137 "%s: key index %d out of bounds\n", __func__,
1138 key_index);
1139 return -ENOENT;
1140 }
1141
1142 key = &vif->keys[key_index];
1143 memset(key, 0, sizeof(struct ath6kl_key));
1144
1145 if (pairwise)
1146 key_usage = PAIRWISE_USAGE;
1147 else
1148 key_usage = GROUP_USAGE;
1149
1150 seq_len = params->seq_len;
1151 if (params->cipher == WLAN_CIPHER_SUITE_SMS4 &&
1152 seq_len > ATH6KL_KEY_SEQ_LEN) {
1153 /* Only first half of the WPI PN is configured */
1154 seq_len = ATH6KL_KEY_SEQ_LEN;
1155 }
1156 if (params->key_len > WLAN_MAX_KEY_LEN ||
1157 seq_len > sizeof(key->seq))
1158 return -EINVAL;
1159
1160 key->key_len = params->key_len;
1161 memcpy(key->key, params->key, key->key_len);
1162 key->seq_len = seq_len;
1163 memcpy(key->seq, params->seq, key->seq_len);
1164 key->cipher = params->cipher;
1165
1166 switch (key->cipher) {
1167 case WLAN_CIPHER_SUITE_WEP40:
1168 case WLAN_CIPHER_SUITE_WEP104:
1169 key_type = WEP_CRYPT;
1170 break;
1171
1172 case WLAN_CIPHER_SUITE_TKIP:
1173 key_type = TKIP_CRYPT;
1174 break;
1175
1176 case WLAN_CIPHER_SUITE_CCMP:
1177 key_type = AES_CRYPT;
1178 break;
1179 case WLAN_CIPHER_SUITE_SMS4:
1180 key_type = WAPI_CRYPT;
1181 break;
1182
1183 default:
1184 return -ENOTSUPP;
1185 }
1186
1187 if (((vif->auth_mode == WPA_PSK_AUTH) ||
1188 (vif->auth_mode == WPA2_PSK_AUTH)) &&
1189 (key_usage & GROUP_USAGE))
1190 del_timer(&vif->disconnect_timer);
1191
1192 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1193 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n",
1194 __func__, key_index, key->key_len, key_type,
1195 key_usage, key->seq_len);
1196
1197 if (vif->nw_type == AP_NETWORK && !pairwise &&
1198 (key_type == TKIP_CRYPT || key_type == AES_CRYPT ||
1199 key_type == WAPI_CRYPT)) {
1200 ar->ap_mode_bkey.valid = true;
1201 ar->ap_mode_bkey.key_index = key_index;
1202 ar->ap_mode_bkey.key_type = key_type;
1203 ar->ap_mode_bkey.key_len = key->key_len;
1204 memcpy(ar->ap_mode_bkey.key, key->key, key->key_len);
1205 if (!test_bit(CONNECTED, &vif->flags)) {
1206 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1207 "Delay initial group key configuration until AP mode has been started\n");
1208 /*
1209 * The key will be set in ath6kl_connect_ap_mode() once
1210 * the connected event is received from the target.
1211 */
1212 return 0;
1213 }
1214 }
1215
1216 if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT &&
1217 !test_bit(CONNECTED, &vif->flags)) {
1218 /*
1219 * Store the key locally so that it can be re-configured after
1220 * the AP mode has properly started
1221 * (ath6kl_install_statioc_wep_keys).
1222 */
1223 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1224 "Delay WEP key configuration until AP mode has been started\n");
1225 vif->wep_key_list[key_index].key_len = key->key_len;
1226 memcpy(vif->wep_key_list[key_index].key, key->key,
1227 key->key_len);
1228 return 0;
1229 }
1230
1231 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index,
1232 key_type, key_usage, key->key_len,
1233 key->seq, key->seq_len, key->key,
1234 KEY_OP_INIT_VAL,
1235 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG);
1236 }
1237
1238 static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
1239 u8 key_index, bool pairwise,
1240 const u8 *mac_addr)
1241 {
1242 struct ath6kl *ar = ath6kl_priv(ndev);
1243 struct ath6kl_vif *vif = netdev_priv(ndev);
1244
1245 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1246
1247 if (!ath6kl_cfg80211_ready(vif))
1248 return -EIO;
1249
1250 if (key_index > WMI_MAX_KEY_INDEX) {
1251 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1252 "%s: key index %d out of bounds\n", __func__,
1253 key_index);
1254 return -ENOENT;
1255 }
1256
1257 if (!vif->keys[key_index].key_len) {
1258 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1259 "%s: index %d is empty\n", __func__, key_index);
1260 return 0;
1261 }
1262
1263 vif->keys[key_index].key_len = 0;
1264
1265 return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, key_index);
1266 }
1267
1268 static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
1269 u8 key_index, bool pairwise,
1270 const u8 *mac_addr, void *cookie,
1271 void (*callback) (void *cookie,
1272 struct key_params *))
1273 {
1274 struct ath6kl_vif *vif = netdev_priv(ndev);
1275 struct ath6kl_key *key = NULL;
1276 struct key_params params;
1277
1278 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1279
1280 if (!ath6kl_cfg80211_ready(vif))
1281 return -EIO;
1282
1283 if (key_index > WMI_MAX_KEY_INDEX) {
1284 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1285 "%s: key index %d out of bounds\n", __func__,
1286 key_index);
1287 return -ENOENT;
1288 }
1289
1290 key = &vif->keys[key_index];
1291 memset(&params, 0, sizeof(params));
1292 params.cipher = key->cipher;
1293 params.key_len = key->key_len;
1294 params.seq_len = key->seq_len;
1295 params.seq = key->seq;
1296 params.key = key->key;
1297
1298 callback(cookie, &params);
1299
1300 return key->key_len ? 0 : -ENOENT;
1301 }
1302
1303 static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy,
1304 struct net_device *ndev,
1305 u8 key_index, bool unicast,
1306 bool multicast)
1307 {
1308 struct ath6kl *ar = ath6kl_priv(ndev);
1309 struct ath6kl_vif *vif = netdev_priv(ndev);
1310 struct ath6kl_key *key = NULL;
1311 u8 key_usage;
1312 enum crypto_type key_type = NONE_CRYPT;
1313
1314 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
1315
1316 if (!ath6kl_cfg80211_ready(vif))
1317 return -EIO;
1318
1319 if (key_index > WMI_MAX_KEY_INDEX) {
1320 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1321 "%s: key index %d out of bounds\n",
1322 __func__, key_index);
1323 return -ENOENT;
1324 }
1325
1326 if (!vif->keys[key_index].key_len) {
1327 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n",
1328 __func__, key_index);
1329 return -EINVAL;
1330 }
1331
1332 vif->def_txkey_index = key_index;
1333 key = &vif->keys[vif->def_txkey_index];
1334 key_usage = GROUP_USAGE;
1335 if (vif->prwise_crypto == WEP_CRYPT)
1336 key_usage |= TX_USAGE;
1337 if (unicast)
1338 key_type = vif->prwise_crypto;
1339 if (multicast)
1340 key_type = vif->grp_crypto;
1341
1342 if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags))
1343 return 0; /* Delay until AP mode has been started */
1344
1345 return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx,
1346 vif->def_txkey_index,
1347 key_type, key_usage,
1348 key->key_len, key->seq, key->seq_len,
1349 key->key,
1350 KEY_OP_INIT_VAL, NULL,
1351 SYNC_BOTH_WMIFLAG);
1352 }
1353
1354 void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid,
1355 bool ismcast)
1356 {
1357 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1358 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast);
1359
1360 cfg80211_michael_mic_failure(vif->ndev, vif->bssid,
1361 (ismcast ? NL80211_KEYTYPE_GROUP :
1362 NL80211_KEYTYPE_PAIRWISE), keyid, NULL,
1363 GFP_KERNEL);
1364 }
1365
1366 static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1367 {
1368 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1369 struct ath6kl_vif *vif;
1370 int ret;
1371
1372 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__,
1373 changed);
1374
1375 vif = ath6kl_vif_first(ar);
1376 if (!vif)
1377 return -EIO;
1378
1379 if (!ath6kl_cfg80211_ready(vif))
1380 return -EIO;
1381
1382 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1383 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold);
1384 if (ret != 0) {
1385 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n");
1386 return -EIO;
1387 }
1388 }
1389
1390 return 0;
1391 }
1392
1393 static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy,
1394 struct wireless_dev *wdev,
1395 enum nl80211_tx_power_setting type,
1396 int mbm)
1397 {
1398 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1399 struct ath6kl_vif *vif;
1400 int dbm = MBM_TO_DBM(mbm);
1401
1402 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__,
1403 type, dbm);
1404
1405 vif = ath6kl_vif_first(ar);
1406 if (!vif)
1407 return -EIO;
1408
1409 if (!ath6kl_cfg80211_ready(vif))
1410 return -EIO;
1411
1412 switch (type) {
1413 case NL80211_TX_POWER_AUTOMATIC:
1414 return 0;
1415 case NL80211_TX_POWER_LIMITED:
1416 ar->tx_pwr = dbm;
1417 break;
1418 default:
1419 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n",
1420 __func__, type);
1421 return -EOPNOTSUPP;
1422 }
1423
1424 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx, dbm);
1425
1426 return 0;
1427 }
1428
1429 static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy,
1430 struct wireless_dev *wdev,
1431 int *dbm)
1432 {
1433 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1434 struct ath6kl_vif *vif;
1435
1436 vif = ath6kl_vif_first(ar);
1437 if (!vif)
1438 return -EIO;
1439
1440 if (!ath6kl_cfg80211_ready(vif))
1441 return -EIO;
1442
1443 if (test_bit(CONNECTED, &vif->flags)) {
1444 ar->tx_pwr = 0;
1445
1446 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) {
1447 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n");
1448 return -EIO;
1449 }
1450
1451 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0,
1452 5 * HZ);
1453
1454 if (signal_pending(current)) {
1455 ath6kl_err("target did not respond\n");
1456 return -EINTR;
1457 }
1458 }
1459
1460 *dbm = ar->tx_pwr;
1461 return 0;
1462 }
1463
1464 static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
1465 struct net_device *dev,
1466 bool pmgmt, int timeout)
1467 {
1468 struct ath6kl *ar = ath6kl_priv(dev);
1469 struct wmi_power_mode_cmd mode;
1470 struct ath6kl_vif *vif = netdev_priv(dev);
1471
1472 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",
1473 __func__, pmgmt, timeout);
1474
1475 if (!ath6kl_cfg80211_ready(vif))
1476 return -EIO;
1477
1478 if (pmgmt) {
1479 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);
1480 mode.pwr_mode = REC_POWER;
1481 } else {
1482 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);
1483 mode.pwr_mode = MAX_PERF_POWER;
1484 }
1485
1486 if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx,
1487 mode.pwr_mode) != 0) {
1488 ath6kl_err("wmi_powermode_cmd failed\n");
1489 return -EIO;
1490 }
1491
1492 return 0;
1493 }
1494
1495 static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy,
1496 const char *name,
1497 enum nl80211_iftype type,
1498 u32 *flags,
1499 struct vif_params *params)
1500 {
1501 struct ath6kl *ar = wiphy_priv(wiphy);
1502 struct wireless_dev *wdev;
1503 u8 if_idx, nw_type;
1504
1505 if (ar->num_vif == ar->vif_max) {
1506 ath6kl_err("Reached maximum number of supported vif\n");
1507 return ERR_PTR(-EINVAL);
1508 }
1509
1510 if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) {
1511 ath6kl_err("Not a supported interface type\n");
1512 return ERR_PTR(-EINVAL);
1513 }
1514
1515 wdev = ath6kl_interface_add(ar, name, type, if_idx, nw_type);
1516 if (!wdev)
1517 return ERR_PTR(-ENOMEM);
1518
1519 ar->num_vif++;
1520
1521 return wdev;
1522 }
1523
1524 static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy,
1525 struct wireless_dev *wdev)
1526 {
1527 struct ath6kl *ar = wiphy_priv(wiphy);
1528 struct ath6kl_vif *vif = netdev_priv(wdev->netdev);
1529
1530 spin_lock_bh(&ar->list_lock);
1531 list_del(&vif->list);
1532 spin_unlock_bh(&ar->list_lock);
1533
1534 ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag));
1535
1536 rtnl_lock();
1537 ath6kl_cfg80211_vif_cleanup(vif);
1538 rtnl_unlock();
1539
1540 return 0;
1541 }
1542
1543 static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
1544 struct net_device *ndev,
1545 enum nl80211_iftype type, u32 *flags,
1546 struct vif_params *params)
1547 {
1548 struct ath6kl_vif *vif = netdev_priv(ndev);
1549 int i;
1550
1551 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
1552
1553 /*
1554 * Don't bring up p2p on an interface which is not initialized
1555 * for p2p operation where fw does not have capability to switch
1556 * dynamically between non-p2p and p2p type interface.
1557 */
1558 if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
1559 vif->ar->fw_capabilities) &&
1560 (type == NL80211_IFTYPE_P2P_CLIENT ||
1561 type == NL80211_IFTYPE_P2P_GO)) {
1562 if (vif->ar->vif_max == 1) {
1563 if (vif->fw_vif_idx != 0)
1564 return -EINVAL;
1565 else
1566 goto set_iface_type;
1567 }
1568
1569 for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) {
1570 if (i == vif->fw_vif_idx)
1571 break;
1572 }
1573
1574 if (i == vif->ar->vif_max) {
1575 ath6kl_err("Invalid interface to bring up P2P\n");
1576 return -EINVAL;
1577 }
1578 }
1579
1580 /* need to clean up enhanced bmiss detection fw state */
1581 ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
1582
1583 set_iface_type:
1584 switch (type) {
1585 case NL80211_IFTYPE_STATION:
1586 case NL80211_IFTYPE_P2P_CLIENT:
1587 vif->next_mode = INFRA_NETWORK;
1588 break;
1589 case NL80211_IFTYPE_ADHOC:
1590 vif->next_mode = ADHOC_NETWORK;
1591 break;
1592 case NL80211_IFTYPE_AP:
1593 case NL80211_IFTYPE_P2P_GO:
1594 vif->next_mode = AP_NETWORK;
1595 break;
1596 default:
1597 ath6kl_err("invalid interface type %u\n", type);
1598 return -EOPNOTSUPP;
1599 }
1600
1601 vif->wdev.iftype = type;
1602
1603 return 0;
1604 }
1605
1606 static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,
1607 struct net_device *dev,
1608 struct cfg80211_ibss_params *ibss_param)
1609 {
1610 struct ath6kl *ar = ath6kl_priv(dev);
1611 struct ath6kl_vif *vif = netdev_priv(dev);
1612 int status;
1613
1614 if (!ath6kl_cfg80211_ready(vif))
1615 return -EIO;
1616
1617 vif->ssid_len = ibss_param->ssid_len;
1618 memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len);
1619
1620 if (ibss_param->chandef.chan)
1621 vif->ch_hint = ibss_param->chandef.chan->center_freq;
1622
1623 if (ibss_param->channel_fixed) {
1624 /*
1625 * TODO: channel_fixed: The channel should be fixed, do not
1626 * search for IBSSs to join on other channels. Target
1627 * firmware does not support this feature, needs to be
1628 * updated.
1629 */
1630 return -EOPNOTSUPP;
1631 }
1632
1633 memset(vif->req_bssid, 0, sizeof(vif->req_bssid));
1634 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))
1635 memcpy(vif->req_bssid, ibss_param->bssid,
1636 sizeof(vif->req_bssid));
1637
1638 ath6kl_set_wpa_version(vif, 0);
1639
1640 status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM);
1641 if (status)
1642 return status;
1643
1644 if (ibss_param->privacy) {
1645 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true);
1646 ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false);
1647 } else {
1648 ath6kl_set_cipher(vif, 0, true);
1649 ath6kl_set_cipher(vif, 0, false);
1650 }
1651
1652 vif->nw_type = vif->next_mode;
1653
1654 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1655 "%s: connect called with authmode %d dot11 auth %d"
1656 " PW crypto %d PW crypto len %d GRP crypto %d"
1657 " GRP crypto len %d channel hint %u\n",
1658 __func__,
1659 vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto,
1660 vif->prwise_crypto_len, vif->grp_crypto,
1661 vif->grp_crypto_len, vif->ch_hint);
1662
1663 status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type,
1664 vif->dot11_auth_mode, vif->auth_mode,
1665 vif->prwise_crypto,
1666 vif->prwise_crypto_len,
1667 vif->grp_crypto, vif->grp_crypto_len,
1668 vif->ssid_len, vif->ssid,
1669 vif->req_bssid, vif->ch_hint,
1670 ar->connect_ctrl_flags, SUBTYPE_NONE);
1671 set_bit(CONNECT_PEND, &vif->flags);
1672
1673 return 0;
1674 }
1675
1676 static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,
1677 struct net_device *dev)
1678 {
1679 struct ath6kl_vif *vif = netdev_priv(dev);
1680
1681 if (!ath6kl_cfg80211_ready(vif))
1682 return -EIO;
1683
1684 ath6kl_disconnect(vif);
1685 memset(vif->ssid, 0, sizeof(vif->ssid));
1686 vif->ssid_len = 0;
1687
1688 return 0;
1689 }
1690
1691 static const u32 cipher_suites[] = {
1692 WLAN_CIPHER_SUITE_WEP40,
1693 WLAN_CIPHER_SUITE_WEP104,
1694 WLAN_CIPHER_SUITE_TKIP,
1695 WLAN_CIPHER_SUITE_CCMP,
1696 CCKM_KRK_CIPHER_SUITE,
1697 WLAN_CIPHER_SUITE_SMS4,
1698 };
1699
1700 static bool is_rate_legacy(s32 rate)
1701 {
1702 static const s32 legacy[] = { 1000, 2000, 5500, 11000,
1703 6000, 9000, 12000, 18000, 24000,
1704 36000, 48000, 54000
1705 };
1706 u8 i;
1707
1708 for (i = 0; i < ARRAY_SIZE(legacy); i++)
1709 if (rate == legacy[i])
1710 return true;
1711
1712 return false;
1713 }
1714
1715 static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
1716 {
1717 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
1718 52000, 58500, 65000, 72200
1719 };
1720 u8 i;
1721
1722 for (i = 0; i < ARRAY_SIZE(ht20); i++) {
1723 if (rate == ht20[i]) {
1724 if (i == ARRAY_SIZE(ht20) - 1)
1725 /* last rate uses sgi */
1726 *sgi = true;
1727 else
1728 *sgi = false;
1729
1730 *mcs = i;
1731 return true;
1732 }
1733 }
1734 return false;
1735 }
1736
1737 static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
1738 {
1739 static const s32 ht40[] = { 13500, 27000, 40500, 54000,
1740 81000, 108000, 121500, 135000,
1741 150000
1742 };
1743 u8 i;
1744
1745 for (i = 0; i < ARRAY_SIZE(ht40); i++) {
1746 if (rate == ht40[i]) {
1747 if (i == ARRAY_SIZE(ht40) - 1)
1748 /* last rate uses sgi */
1749 *sgi = true;
1750 else
1751 *sgi = false;
1752
1753 *mcs = i;
1754 return true;
1755 }
1756 }
1757
1758 return false;
1759 }
1760
1761 static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,
1762 const u8 *mac, struct station_info *sinfo)
1763 {
1764 struct ath6kl *ar = ath6kl_priv(dev);
1765 struct ath6kl_vif *vif = netdev_priv(dev);
1766 long left;
1767 bool sgi;
1768 s32 rate;
1769 int ret;
1770 u8 mcs;
1771
1772 if (memcmp(mac, vif->bssid, ETH_ALEN) != 0)
1773 return -ENOENT;
1774
1775 if (down_interruptible(&ar->sem))
1776 return -EBUSY;
1777
1778 set_bit(STATS_UPDATE_PEND, &vif->flags);
1779
1780 ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx);
1781
1782 if (ret != 0) {
1783 up(&ar->sem);
1784 return -EIO;
1785 }
1786
1787 left = wait_event_interruptible_timeout(ar->event_wq,
1788 !test_bit(STATS_UPDATE_PEND,
1789 &vif->flags),
1790 WMI_TIMEOUT);
1791
1792 up(&ar->sem);
1793
1794 if (left == 0)
1795 return -ETIMEDOUT;
1796 else if (left < 0)
1797 return left;
1798
1799 if (vif->target_stats.rx_byte) {
1800 sinfo->rx_bytes = vif->target_stats.rx_byte;
1801 sinfo->filled |= STATION_INFO_RX_BYTES64;
1802 sinfo->rx_packets = vif->target_stats.rx_pkt;
1803 sinfo->filled |= STATION_INFO_RX_PACKETS;
1804 }
1805
1806 if (vif->target_stats.tx_byte) {
1807 sinfo->tx_bytes = vif->target_stats.tx_byte;
1808 sinfo->filled |= STATION_INFO_TX_BYTES64;
1809 sinfo->tx_packets = vif->target_stats.tx_pkt;
1810 sinfo->filled |= STATION_INFO_TX_PACKETS;
1811 }
1812
1813 sinfo->signal = vif->target_stats.cs_rssi;
1814 sinfo->filled |= STATION_INFO_SIGNAL;
1815
1816 rate = vif->target_stats.tx_ucast_rate;
1817
1818 if (is_rate_legacy(rate)) {
1819 sinfo->txrate.legacy = rate / 100;
1820 } else if (is_rate_ht20(rate, &mcs, &sgi)) {
1821 if (sgi) {
1822 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1823 sinfo->txrate.mcs = mcs - 1;
1824 } else {
1825 sinfo->txrate.mcs = mcs;
1826 }
1827
1828 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1829 } else if (is_rate_ht40(rate, &mcs, &sgi)) {
1830 if (sgi) {
1831 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1832 sinfo->txrate.mcs = mcs - 1;
1833 } else {
1834 sinfo->txrate.mcs = mcs;
1835 }
1836
1837 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
1838 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1839 } else {
1840 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1841 "invalid rate from stats: %d\n", rate);
1842 ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE);
1843 return 0;
1844 }
1845
1846 sinfo->filled |= STATION_INFO_TX_BITRATE;
1847
1848 if (test_bit(CONNECTED, &vif->flags) &&
1849 test_bit(DTIM_PERIOD_AVAIL, &vif->flags) &&
1850 vif->nw_type == INFRA_NETWORK) {
1851 sinfo->filled |= STATION_INFO_BSS_PARAM;
1852 sinfo->bss_param.flags = 0;
1853 sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period;
1854 sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int;
1855 }
1856
1857 return 0;
1858 }
1859
1860 static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1861 struct cfg80211_pmksa *pmksa)
1862 {
1863 struct ath6kl *ar = ath6kl_priv(netdev);
1864 struct ath6kl_vif *vif = netdev_priv(netdev);
1865
1866 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1867 pmksa->pmkid, true);
1868 }
1869
1870 static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1871 struct cfg80211_pmksa *pmksa)
1872 {
1873 struct ath6kl *ar = ath6kl_priv(netdev);
1874 struct ath6kl_vif *vif = netdev_priv(netdev);
1875
1876 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid,
1877 pmksa->pmkid, false);
1878 }
1879
1880 static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
1881 {
1882 struct ath6kl *ar = ath6kl_priv(netdev);
1883 struct ath6kl_vif *vif = netdev_priv(netdev);
1884
1885 if (test_bit(CONNECTED, &vif->flags))
1886 return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx,
1887 vif->bssid, NULL, false);
1888 return 0;
1889 }
1890
1891 static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif,
1892 struct cfg80211_wowlan *wow, u32 *filter)
1893 {
1894 int ret, pos;
1895 u8 mask[WOW_PATTERN_SIZE];
1896 u16 i;
1897
1898 /* Configure the patterns that we received from the user. */
1899 for (i = 0; i < wow->n_patterns; i++) {
1900
1901 /*
1902 * Convert given nl80211 specific mask value to equivalent
1903 * driver specific mask value and send it to the chip along
1904 * with patterns. For example, If the mask value defined in
1905 * struct cfg80211_wowlan is 0xA (equivalent binary is 1010),
1906 * then equivalent driver specific mask value is
1907 * "0xFF 0x00 0xFF 0x00".
1908 */
1909 memset(&mask, 0, sizeof(mask));
1910 for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) {
1911 if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8)))
1912 mask[pos] = 0xFF;
1913 }
1914 /*
1915 * Note: Pattern's offset is not passed as part of wowlan
1916 * parameter from CFG layer. So it's always passed as ZERO
1917 * to the firmware. It means, given WOW patterns are always
1918 * matched from the first byte of received pkt in the firmware.
1919 */
1920 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1921 vif->fw_vif_idx, WOW_LIST_ID,
1922 wow->patterns[i].pattern_len,
1923 0 /* pattern offset */,
1924 wow->patterns[i].pattern, mask);
1925 if (ret)
1926 return ret;
1927 }
1928
1929 if (wow->disconnect)
1930 *filter |= WOW_FILTER_OPTION_NWK_DISASSOC;
1931
1932 if (wow->magic_pkt)
1933 *filter |= WOW_FILTER_OPTION_MAGIC_PACKET;
1934
1935 if (wow->gtk_rekey_failure)
1936 *filter |= WOW_FILTER_OPTION_GTK_ERROR;
1937
1938 if (wow->eap_identity_req)
1939 *filter |= WOW_FILTER_OPTION_EAP_REQ;
1940
1941 if (wow->four_way_handshake)
1942 *filter |= WOW_FILTER_OPTION_8021X_4WAYHS;
1943
1944 return 0;
1945 }
1946
1947 static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif)
1948 {
1949 static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00,
1950 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1951 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1952 0x00, 0x08 };
1953 static const u8 unicst_mask[] = { 0x01, 0x00, 0x00,
1954 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1955 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1956 0x00, 0x7f };
1957 u8 unicst_offset = 0;
1958 static const u8 arp_pattern[] = { 0x08, 0x06 };
1959 static const u8 arp_mask[] = { 0xff, 0xff };
1960 u8 arp_offset = 20;
1961 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
1962 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
1963 u8 discvr_offset = 38;
1964 static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff,
1965 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1966 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00,
1967 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1968 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1969 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ };
1970 static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff,
1971 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1972 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
1973 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1974 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1975 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ };
1976 u8 dhcp_offset = 0;
1977 int ret;
1978
1979 /* Setup unicast IP, EAPOL-like and ARP pkt pattern */
1980 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1981 vif->fw_vif_idx, WOW_LIST_ID,
1982 sizeof(unicst_pattern), unicst_offset,
1983 unicst_pattern, unicst_mask);
1984 if (ret) {
1985 ath6kl_err("failed to add WOW unicast IP pattern\n");
1986 return ret;
1987 }
1988
1989 /* Setup all ARP pkt pattern */
1990 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
1991 vif->fw_vif_idx, WOW_LIST_ID,
1992 sizeof(arp_pattern), arp_offset,
1993 arp_pattern, arp_mask);
1994 if (ret) {
1995 ath6kl_err("failed to add WOW ARP pattern\n");
1996 return ret;
1997 }
1998
1999 /*
2000 * Setup multicast pattern for mDNS 224.0.0.251,
2001 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
2002 */
2003 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2004 vif->fw_vif_idx, WOW_LIST_ID,
2005 sizeof(discvr_pattern), discvr_offset,
2006 discvr_pattern, discvr_mask);
2007 if (ret) {
2008 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
2009 return ret;
2010 }
2011
2012 /* Setup all DHCP broadcast pkt pattern */
2013 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2014 vif->fw_vif_idx, WOW_LIST_ID,
2015 sizeof(dhcp_pattern), dhcp_offset,
2016 dhcp_pattern, dhcp_mask);
2017 if (ret) {
2018 ath6kl_err("failed to add WOW DHCP broadcast pattern\n");
2019 return ret;
2020 }
2021
2022 return 0;
2023 }
2024
2025 static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif)
2026 {
2027 struct net_device *ndev = vif->ndev;
2028 static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 };
2029 static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 };
2030 u8 discvr_offset = 38;
2031 u8 mac_mask[ETH_ALEN];
2032 int ret;
2033
2034 /* Setup unicast pkt pattern */
2035 memset(mac_mask, 0xff, ETH_ALEN);
2036 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2037 vif->fw_vif_idx, WOW_LIST_ID,
2038 ETH_ALEN, 0, ndev->dev_addr,
2039 mac_mask);
2040 if (ret) {
2041 ath6kl_err("failed to add WOW unicast pattern\n");
2042 return ret;
2043 }
2044
2045 /*
2046 * Setup multicast pattern for mDNS 224.0.0.251,
2047 * SSDP 239.255.255.250 and LLMNR 224.0.0.252
2048 */
2049 if ((ndev->flags & IFF_ALLMULTI) ||
2050 (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) {
2051 ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi,
2052 vif->fw_vif_idx, WOW_LIST_ID,
2053 sizeof(discvr_pattern), discvr_offset,
2054 discvr_pattern, discvr_mask);
2055 if (ret) {
2056 ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n");
2057 return ret;
2058 }
2059 }
2060
2061 return 0;
2062 }
2063
2064 static int is_hsleep_mode_procsed(struct ath6kl_vif *vif)
2065 {
2066 return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2067 }
2068
2069 static bool is_ctrl_ep_empty(struct ath6kl *ar)
2070 {
2071 return !ar->tx_pending[ar->ctrl_ep];
2072 }
2073
2074 static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif)
2075 {
2076 int ret, left;
2077
2078 clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2079
2080 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2081 ATH6KL_HOST_MODE_ASLEEP);
2082 if (ret)
2083 return ret;
2084
2085 left = wait_event_interruptible_timeout(ar->event_wq,
2086 is_hsleep_mode_procsed(vif),
2087 WMI_TIMEOUT);
2088 if (left == 0) {
2089 ath6kl_warn("timeout, didn't get host sleep cmd processed event\n");
2090 ret = -ETIMEDOUT;
2091 } else if (left < 0) {
2092 ath6kl_warn("error while waiting for host sleep cmd processed event %d\n",
2093 left);
2094 ret = left;
2095 }
2096
2097 if (ar->tx_pending[ar->ctrl_ep]) {
2098 left = wait_event_interruptible_timeout(ar->event_wq,
2099 is_ctrl_ep_empty(ar),
2100 WMI_TIMEOUT);
2101 if (left == 0) {
2102 ath6kl_warn("clear wmi ctrl data timeout\n");
2103 ret = -ETIMEDOUT;
2104 } else if (left < 0) {
2105 ath6kl_warn("clear wmi ctrl data failed: %d\n", left);
2106 ret = left;
2107 }
2108 }
2109
2110 return ret;
2111 }
2112
2113 static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif,
2114 struct cfg80211_wowlan *wow, u32 *filter)
2115 {
2116 struct ath6kl *ar = vif->ar;
2117 struct in_device *in_dev;
2118 struct in_ifaddr *ifa;
2119 int ret;
2120 u16 i, bmiss_time;
2121 __be32 ips[MAX_IP_ADDRS];
2122 u8 index = 0;
2123
2124 if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) &&
2125 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
2126 ar->fw_capabilities)) {
2127 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
2128 vif->fw_vif_idx, false);
2129 if (ret)
2130 return ret;
2131 }
2132
2133 /* Clear existing WOW patterns */
2134 for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++)
2135 ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx,
2136 WOW_LIST_ID, i);
2137
2138 /*
2139 * Skip the default WOW pattern configuration
2140 * if the driver receives any WOW patterns from
2141 * the user.
2142 */
2143 if (wow)
2144 ret = ath6kl_wow_usr(ar, vif, wow, filter);
2145 else if (vif->nw_type == AP_NETWORK)
2146 ret = ath6kl_wow_ap(ar, vif);
2147 else
2148 ret = ath6kl_wow_sta(ar, vif);
2149
2150 if (ret)
2151 return ret;
2152
2153 netif_stop_queue(vif->ndev);
2154
2155 if (vif->nw_type != AP_NETWORK) {
2156 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
2157 ATH6KL_MAX_WOW_LISTEN_INTL,
2158 0);
2159 if (ret)
2160 return ret;
2161
2162 /* Set listen interval x 15 times as bmiss time */
2163 bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15;
2164 if (bmiss_time > ATH6KL_MAX_BMISS_TIME)
2165 bmiss_time = ATH6KL_MAX_BMISS_TIME;
2166
2167 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
2168 bmiss_time, 0);
2169 if (ret)
2170 return ret;
2171
2172 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2173 0xFFFF, 0, 0xFFFF, 0, 0, 0,
2174 0, 0, 0, 0);
2175 if (ret)
2176 return ret;
2177 }
2178
2179 /* Setup own IP addr for ARP agent. */
2180 in_dev = __in_dev_get_rtnl(vif->ndev);
2181 if (!in_dev)
2182 return 0;
2183
2184 ifa = in_dev->ifa_list;
2185 memset(&ips, 0, sizeof(ips));
2186
2187 /* Configure IP addr only if IP address count < MAX_IP_ADDRS */
2188 while (index < MAX_IP_ADDRS && ifa) {
2189 ips[index] = ifa->ifa_local;
2190 ifa = ifa->ifa_next;
2191 index++;
2192 }
2193
2194 if (ifa) {
2195 ath6kl_err("total IP addr count is exceeding fw limit\n");
2196 return -EINVAL;
2197 }
2198
2199 ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]);
2200 if (ret) {
2201 ath6kl_err("fail to setup ip for arp agent\n");
2202 return ret;
2203 }
2204
2205 return ret;
2206 }
2207
2208 static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow)
2209 {
2210 struct ath6kl_vif *first_vif, *vif;
2211 int ret = 0;
2212 u32 filter = 0;
2213 bool connected = false;
2214
2215 /* enter / leave wow suspend on first vif always */
2216 first_vif = ath6kl_vif_first(ar);
2217 if (WARN_ON(unlikely(!first_vif)) ||
2218 !ath6kl_cfg80211_ready(first_vif))
2219 return -EIO;
2220
2221 if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST))
2222 return -EINVAL;
2223
2224 /* install filters for each connected vif */
2225 spin_lock_bh(&ar->list_lock);
2226 list_for_each_entry(vif, &ar->vif_list, list) {
2227 if (!test_bit(CONNECTED, &vif->flags) ||
2228 !ath6kl_cfg80211_ready(vif))
2229 continue;
2230 connected = true;
2231
2232 ret = ath6kl_wow_suspend_vif(vif, wow, &filter);
2233 if (ret)
2234 break;
2235 }
2236 spin_unlock_bh(&ar->list_lock);
2237
2238 if (!connected)
2239 return -ENOTCONN;
2240 else if (ret)
2241 return ret;
2242
2243 ar->state = ATH6KL_STATE_SUSPENDING;
2244
2245 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx,
2246 ATH6KL_WOW_MODE_ENABLE,
2247 filter,
2248 WOW_HOST_REQ_DELAY);
2249 if (ret)
2250 return ret;
2251
2252 return ath6kl_cfg80211_host_sleep(ar, first_vif);
2253 }
2254
2255 static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif)
2256 {
2257 struct ath6kl *ar = vif->ar;
2258 int ret;
2259
2260 if (vif->nw_type != AP_NETWORK) {
2261 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2262 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
2263 if (ret)
2264 return ret;
2265
2266 ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
2267 vif->listen_intvl_t, 0);
2268 if (ret)
2269 return ret;
2270
2271 ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx,
2272 vif->bmiss_time_t, 0);
2273 if (ret)
2274 return ret;
2275 }
2276
2277 if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) &&
2278 test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
2279 ar->fw_capabilities)) {
2280 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi,
2281 vif->fw_vif_idx, true);
2282 if (ret)
2283 return ret;
2284 }
2285
2286 netif_wake_queue(vif->ndev);
2287
2288 return 0;
2289 }
2290
2291 static int ath6kl_wow_resume(struct ath6kl *ar)
2292 {
2293 struct ath6kl_vif *vif;
2294 int ret;
2295
2296 vif = ath6kl_vif_first(ar);
2297 if (WARN_ON(unlikely(!vif)) ||
2298 !ath6kl_cfg80211_ready(vif))
2299 return -EIO;
2300
2301 ar->state = ATH6KL_STATE_RESUMING;
2302
2303 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2304 ATH6KL_HOST_MODE_AWAKE);
2305 if (ret) {
2306 ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n",
2307 ret);
2308 goto cleanup;
2309 }
2310
2311 spin_lock_bh(&ar->list_lock);
2312 list_for_each_entry(vif, &ar->vif_list, list) {
2313 if (!test_bit(CONNECTED, &vif->flags) ||
2314 !ath6kl_cfg80211_ready(vif))
2315 continue;
2316 ret = ath6kl_wow_resume_vif(vif);
2317 if (ret)
2318 break;
2319 }
2320 spin_unlock_bh(&ar->list_lock);
2321
2322 if (ret)
2323 goto cleanup;
2324
2325 ar->state = ATH6KL_STATE_ON;
2326 return 0;
2327
2328 cleanup:
2329 ar->state = ATH6KL_STATE_WOW;
2330 return ret;
2331 }
2332
2333 static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar)
2334 {
2335 struct ath6kl_vif *vif;
2336 int ret;
2337
2338 vif = ath6kl_vif_first(ar);
2339 if (!vif)
2340 return -EIO;
2341
2342 if (!test_bit(WMI_READY, &ar->flag)) {
2343 ath6kl_err("deepsleep failed as wmi is not ready\n");
2344 return -EIO;
2345 }
2346
2347 ath6kl_cfg80211_stop_all(ar);
2348
2349 /* Save the current power mode before enabling power save */
2350 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
2351
2352 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER);
2353 if (ret)
2354 return ret;
2355
2356 /* Disable WOW mode */
2357 ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx,
2358 ATH6KL_WOW_MODE_DISABLE,
2359 0, 0);
2360 if (ret)
2361 return ret;
2362
2363 /* Flush all non control pkts in TX path */
2364 ath6kl_tx_data_cleanup(ar);
2365
2366 ret = ath6kl_cfg80211_host_sleep(ar, vif);
2367 if (ret)
2368 return ret;
2369
2370 return 0;
2371 }
2372
2373 static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar)
2374 {
2375 struct ath6kl_vif *vif;
2376 int ret;
2377
2378 vif = ath6kl_vif_first(ar);
2379
2380 if (!vif)
2381 return -EIO;
2382
2383 if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) {
2384 ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0,
2385 ar->wmi->saved_pwr_mode);
2386 if (ret)
2387 return ret;
2388 }
2389
2390 ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx,
2391 ATH6KL_HOST_MODE_AWAKE);
2392 if (ret)
2393 return ret;
2394
2395 ar->state = ATH6KL_STATE_ON;
2396
2397 /* Reset scan parameter to default values */
2398 ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
2399 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
2400 if (ret)
2401 return ret;
2402
2403 return 0;
2404 }
2405
2406 int ath6kl_cfg80211_suspend(struct ath6kl *ar,
2407 enum ath6kl_cfg_suspend_mode mode,
2408 struct cfg80211_wowlan *wow)
2409 {
2410 struct ath6kl_vif *vif;
2411 enum ath6kl_state prev_state;
2412 int ret;
2413
2414 switch (mode) {
2415 case ATH6KL_CFG_SUSPEND_WOW:
2416
2417 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n");
2418
2419 /* Flush all non control pkts in TX path */
2420 ath6kl_tx_data_cleanup(ar);
2421
2422 prev_state = ar->state;
2423
2424 ret = ath6kl_wow_suspend(ar, wow);
2425 if (ret) {
2426 ar->state = prev_state;
2427 return ret;
2428 }
2429
2430 ar->state = ATH6KL_STATE_WOW;
2431 break;
2432
2433 case ATH6KL_CFG_SUSPEND_DEEPSLEEP:
2434
2435 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n");
2436
2437 ret = ath6kl_cfg80211_deepsleep_suspend(ar);
2438 if (ret) {
2439 ath6kl_err("deepsleep suspend failed: %d\n", ret);
2440 return ret;
2441 }
2442
2443 ar->state = ATH6KL_STATE_DEEPSLEEP;
2444
2445 break;
2446
2447 case ATH6KL_CFG_SUSPEND_CUTPOWER:
2448
2449 ath6kl_cfg80211_stop_all(ar);
2450
2451 if (ar->state == ATH6KL_STATE_OFF) {
2452 ath6kl_dbg(ATH6KL_DBG_SUSPEND,
2453 "suspend hw off, no action for cutpower\n");
2454 break;
2455 }
2456
2457 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n");
2458
2459 ret = ath6kl_init_hw_stop(ar);
2460 if (ret) {
2461 ath6kl_warn("failed to stop hw during suspend: %d\n",
2462 ret);
2463 }
2464
2465 ar->state = ATH6KL_STATE_CUTPOWER;
2466
2467 break;
2468
2469 default:
2470 break;
2471 }
2472
2473 list_for_each_entry(vif, &ar->vif_list, list)
2474 ath6kl_cfg80211_scan_complete_event(vif, true);
2475
2476 return 0;
2477 }
2478 EXPORT_SYMBOL(ath6kl_cfg80211_suspend);
2479
2480 int ath6kl_cfg80211_resume(struct ath6kl *ar)
2481 {
2482 int ret;
2483
2484 switch (ar->state) {
2485 case ATH6KL_STATE_WOW:
2486 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n");
2487
2488 ret = ath6kl_wow_resume(ar);
2489 if (ret) {
2490 ath6kl_warn("wow mode resume failed: %d\n", ret);
2491 return ret;
2492 }
2493
2494 break;
2495
2496 case ATH6KL_STATE_DEEPSLEEP:
2497 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n");
2498
2499 ret = ath6kl_cfg80211_deepsleep_resume(ar);
2500 if (ret) {
2501 ath6kl_warn("deep sleep resume failed: %d\n", ret);
2502 return ret;
2503 }
2504 break;
2505
2506 case ATH6KL_STATE_CUTPOWER:
2507 ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n");
2508
2509 ret = ath6kl_init_hw_start(ar);
2510 if (ret) {
2511 ath6kl_warn("Failed to boot hw in resume: %d\n", ret);
2512 return ret;
2513 }
2514 break;
2515
2516 default:
2517 break;
2518 }
2519
2520 return 0;
2521 }
2522 EXPORT_SYMBOL(ath6kl_cfg80211_resume);
2523
2524 #ifdef CONFIG_PM
2525
2526 /* hif layer decides what suspend mode to use */
2527 static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy,
2528 struct cfg80211_wowlan *wow)
2529 {
2530 struct ath6kl *ar = wiphy_priv(wiphy);
2531
2532 ath6kl_recovery_suspend(ar);
2533
2534 return ath6kl_hif_suspend(ar, wow);
2535 }
2536
2537 static int __ath6kl_cfg80211_resume(struct wiphy *wiphy)
2538 {
2539 struct ath6kl *ar = wiphy_priv(wiphy);
2540 int err;
2541
2542 err = ath6kl_hif_resume(ar);
2543 if (err)
2544 return err;
2545
2546 ath6kl_recovery_resume(ar);
2547
2548 return 0;
2549 }
2550
2551 /*
2552 * FIXME: WOW suspend mode is selected if the host sdio controller supports
2553 * both sdio irq wake up and keep power. The target pulls sdio data line to
2554 * wake up the host when WOW pattern matches. This causes sdio irq handler
2555 * is being called in the host side which internally hits ath6kl's RX path.
2556 *
2557 * Since sdio interrupt is not disabled, RX path executes even before
2558 * the host executes the actual resume operation from PM module.
2559 *
2560 * In the current scenario, WOW resume should happen before start processing
2561 * any data from the target. So It's required to perform WOW resume in RX path.
2562 * Ideally we should perform WOW resume only in the actual platform
2563 * resume path. This area needs bit rework to avoid WOW resume in RX path.
2564 *
2565 * ath6kl_check_wow_status() is called from ath6kl_rx().
2566 */
2567 void ath6kl_check_wow_status(struct ath6kl *ar)
2568 {
2569 if (ar->state == ATH6KL_STATE_SUSPENDING)
2570 return;
2571
2572 if (ar->state == ATH6KL_STATE_WOW)
2573 ath6kl_cfg80211_resume(ar);
2574 }
2575
2576 #else
2577
2578 void ath6kl_check_wow_status(struct ath6kl *ar)
2579 {
2580 }
2581 #endif
2582
2583 static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum ieee80211_band band,
2584 bool ht_enable)
2585 {
2586 struct ath6kl_htcap *htcap = &vif->htcap[band];
2587
2588 if (htcap->ht_enable == ht_enable)
2589 return 0;
2590
2591 if (ht_enable) {
2592 /* Set default ht capabilities */
2593 htcap->ht_enable = true;
2594 htcap->cap_info = (band == IEEE80211_BAND_2GHZ) ?
2595 ath6kl_g_htcap : ath6kl_a_htcap;
2596 htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K;
2597 } else /* Disable ht */
2598 memset(htcap, 0, sizeof(*htcap));
2599
2600 return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx,
2601 band, htcap);
2602 }
2603
2604 static int ath6kl_restore_htcap(struct ath6kl_vif *vif)
2605 {
2606 struct wiphy *wiphy = vif->ar->wiphy;
2607 int band, ret = 0;
2608
2609 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2610 if (!wiphy->bands[band])
2611 continue;
2612
2613 ret = ath6kl_set_htcap(vif, band,
2614 wiphy->bands[band]->ht_cap.ht_supported);
2615 if (ret)
2616 return ret;
2617 }
2618
2619 return ret;
2620 }
2621
2622 static bool ath6kl_is_p2p_ie(const u8 *pos)
2623 {
2624 return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 &&
2625 pos[2] == 0x50 && pos[3] == 0x6f &&
2626 pos[4] == 0x9a && pos[5] == 0x09;
2627 }
2628
2629 static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif,
2630 const u8 *ies, size_t ies_len)
2631 {
2632 struct ath6kl *ar = vif->ar;
2633 const u8 *pos;
2634 u8 *buf = NULL;
2635 size_t len = 0;
2636 int ret;
2637
2638 /*
2639 * Filter out P2P IE(s) since they will be included depending on
2640 * the Probe Request frame in ath6kl_send_go_probe_resp().
2641 */
2642
2643 if (ies && ies_len) {
2644 buf = kmalloc(ies_len, GFP_KERNEL);
2645 if (buf == NULL)
2646 return -ENOMEM;
2647 pos = ies;
2648 while (pos + 1 < ies + ies_len) {
2649 if (pos + 2 + pos[1] > ies + ies_len)
2650 break;
2651 if (!ath6kl_is_p2p_ie(pos)) {
2652 memcpy(buf + len, pos, 2 + pos[1]);
2653 len += 2 + pos[1];
2654 }
2655 pos += 2 + pos[1];
2656 }
2657 }
2658
2659 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2660 WMI_FRAME_PROBE_RESP, buf, len);
2661 kfree(buf);
2662 return ret;
2663 }
2664
2665 static int ath6kl_set_ies(struct ath6kl_vif *vif,
2666 struct cfg80211_beacon_data *info)
2667 {
2668 struct ath6kl *ar = vif->ar;
2669 int res;
2670
2671 /* this also clears IE in fw if it's not set */
2672 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2673 WMI_FRAME_BEACON,
2674 info->beacon_ies,
2675 info->beacon_ies_len);
2676 if (res)
2677 return res;
2678
2679 /* this also clears IE in fw if it's not set */
2680 res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies,
2681 info->proberesp_ies_len);
2682 if (res)
2683 return res;
2684
2685 /* this also clears IE in fw if it's not set */
2686 res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
2687 WMI_FRAME_ASSOC_RESP,
2688 info->assocresp_ies,
2689 info->assocresp_ies_len);
2690 if (res)
2691 return res;
2692
2693 return 0;
2694 }
2695
2696 static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon,
2697 u8 *rsn_capab)
2698 {
2699 const u8 *rsn_ie;
2700 size_t rsn_ie_len;
2701 u16 cnt;
2702
2703 if (!beacon->tail)
2704 return -EINVAL;
2705
2706 rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len);
2707 if (!rsn_ie)
2708 return -EINVAL;
2709
2710 rsn_ie_len = *(rsn_ie + 1);
2711 /* skip element id and length */
2712 rsn_ie += 2;
2713
2714 /* skip version */
2715 if (rsn_ie_len < 2)
2716 return -EINVAL;
2717 rsn_ie += 2;
2718 rsn_ie_len -= 2;
2719
2720 /* skip group cipher suite */
2721 if (rsn_ie_len < 4)
2722 return 0;
2723 rsn_ie += 4;
2724 rsn_ie_len -= 4;
2725
2726 /* skip pairwise cipher suite */
2727 if (rsn_ie_len < 2)
2728 return 0;
2729 cnt = get_unaligned_le16(rsn_ie);
2730 rsn_ie += (2 + cnt * 4);
2731 rsn_ie_len -= (2 + cnt * 4);
2732
2733 /* skip akm suite */
2734 if (rsn_ie_len < 2)
2735 return 0;
2736 cnt = get_unaligned_le16(rsn_ie);
2737 rsn_ie += (2 + cnt * 4);
2738 rsn_ie_len -= (2 + cnt * 4);
2739
2740 if (rsn_ie_len < 2)
2741 return 0;
2742
2743 memcpy(rsn_capab, rsn_ie, 2);
2744
2745 return 0;
2746 }
2747
2748 static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev,
2749 struct cfg80211_ap_settings *info)
2750 {
2751 struct ath6kl *ar = ath6kl_priv(dev);
2752 struct ath6kl_vif *vif = netdev_priv(dev);
2753 struct ieee80211_mgmt *mgmt;
2754 bool hidden = false;
2755 u8 *ies;
2756 int ies_len;
2757 struct wmi_connect_cmd p;
2758 int res;
2759 int i, ret;
2760 u16 rsn_capab = 0;
2761 int inactivity_timeout = 0;
2762
2763 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__);
2764
2765 if (!ath6kl_cfg80211_ready(vif))
2766 return -EIO;
2767
2768 if (vif->next_mode != AP_NETWORK)
2769 return -EOPNOTSUPP;
2770
2771 res = ath6kl_set_ies(vif, &info->beacon);
2772
2773 ar->ap_mode_bkey.valid = false;
2774
2775 ret = ath6kl_wmi_ap_set_beacon_intvl_cmd(ar->wmi, vif->fw_vif_idx,
2776 info->beacon_interval);
2777
2778 if (ret)
2779 ath6kl_warn("Failed to set beacon interval: %d\n", ret);
2780
2781 ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx,
2782 info->dtim_period);
2783
2784 /* ignore error, just print a warning and continue normally */
2785 if (ret)
2786 ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret);
2787
2788 if (info->beacon.head == NULL)
2789 return -EINVAL;
2790 mgmt = (struct ieee80211_mgmt *) info->beacon.head;
2791 ies = mgmt->u.beacon.variable;
2792 if (ies > info->beacon.head + info->beacon.head_len)
2793 return -EINVAL;
2794 ies_len = info->beacon.head + info->beacon.head_len - ies;
2795
2796 if (info->ssid == NULL)
2797 return -EINVAL;
2798 memcpy(vif->ssid, info->ssid, info->ssid_len);
2799 vif->ssid_len = info->ssid_len;
2800 if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE)
2801 hidden = true;
2802
2803 res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden);
2804 if (res)
2805 return res;
2806
2807 ret = ath6kl_set_auth_type(vif, info->auth_type);
2808 if (ret)
2809 return ret;
2810
2811 memset(&p, 0, sizeof(p));
2812
2813 for (i = 0; i < info->crypto.n_akm_suites; i++) {
2814 switch (info->crypto.akm_suites[i]) {
2815 case WLAN_AKM_SUITE_8021X:
2816 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2817 p.auth_mode |= WPA_AUTH;
2818 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2819 p.auth_mode |= WPA2_AUTH;
2820 break;
2821 case WLAN_AKM_SUITE_PSK:
2822 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1)
2823 p.auth_mode |= WPA_PSK_AUTH;
2824 if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2)
2825 p.auth_mode |= WPA2_PSK_AUTH;
2826 break;
2827 }
2828 }
2829 if (p.auth_mode == 0)
2830 p.auth_mode = NONE_AUTH;
2831 vif->auth_mode = p.auth_mode;
2832
2833 for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) {
2834 switch (info->crypto.ciphers_pairwise[i]) {
2835 case WLAN_CIPHER_SUITE_WEP40:
2836 case WLAN_CIPHER_SUITE_WEP104:
2837 p.prwise_crypto_type |= WEP_CRYPT;
2838 break;
2839 case WLAN_CIPHER_SUITE_TKIP:
2840 p.prwise_crypto_type |= TKIP_CRYPT;
2841 break;
2842 case WLAN_CIPHER_SUITE_CCMP:
2843 p.prwise_crypto_type |= AES_CRYPT;
2844 break;
2845 case WLAN_CIPHER_SUITE_SMS4:
2846 p.prwise_crypto_type |= WAPI_CRYPT;
2847 break;
2848 }
2849 }
2850 if (p.prwise_crypto_type == 0) {
2851 p.prwise_crypto_type = NONE_CRYPT;
2852 ath6kl_set_cipher(vif, 0, true);
2853 } else if (info->crypto.n_ciphers_pairwise == 1)
2854 ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true);
2855
2856 switch (info->crypto.cipher_group) {
2857 case WLAN_CIPHER_SUITE_WEP40:
2858 case WLAN_CIPHER_SUITE_WEP104:
2859 p.grp_crypto_type = WEP_CRYPT;
2860 break;
2861 case WLAN_CIPHER_SUITE_TKIP:
2862 p.grp_crypto_type = TKIP_CRYPT;
2863 break;
2864 case WLAN_CIPHER_SUITE_CCMP:
2865 p.grp_crypto_type = AES_CRYPT;
2866 break;
2867 case WLAN_CIPHER_SUITE_SMS4:
2868 p.grp_crypto_type = WAPI_CRYPT;
2869 break;
2870 default:
2871 p.grp_crypto_type = NONE_CRYPT;
2872 break;
2873 }
2874 ath6kl_set_cipher(vif, info->crypto.cipher_group, false);
2875
2876 p.nw_type = AP_NETWORK;
2877 vif->nw_type = vif->next_mode;
2878
2879 p.ssid_len = vif->ssid_len;
2880 memcpy(p.ssid, vif->ssid, vif->ssid_len);
2881 p.dot11_auth_mode = vif->dot11_auth_mode;
2882 p.ch = cpu_to_le16(info->chandef.chan->center_freq);
2883
2884 /* Enable uAPSD support by default */
2885 res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true);
2886 if (res < 0)
2887 return res;
2888
2889 if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) {
2890 p.nw_subtype = SUBTYPE_P2PGO;
2891 } else {
2892 /*
2893 * Due to firmware limitation, it is not possible to
2894 * do P2P mgmt operations in AP mode
2895 */
2896 p.nw_subtype = SUBTYPE_NONE;
2897 }
2898
2899 if (info->inactivity_timeout) {
2900
2901 inactivity_timeout = info->inactivity_timeout;
2902
2903 if (ar->hw.flags & ATH6KL_HW_AP_INACTIVITY_MINS)
2904 inactivity_timeout = DIV_ROUND_UP(inactivity_timeout,
2905 60);
2906
2907 res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx,
2908 inactivity_timeout);
2909 if (res < 0)
2910 return res;
2911 }
2912
2913 if (ath6kl_set_htcap(vif, info->chandef.chan->band,
2914 cfg80211_get_chandef_type(&info->chandef)
2915 != NL80211_CHAN_NO_HT))
2916 return -EIO;
2917
2918 /*
2919 * Get the PTKSA replay counter in the RSN IE. Supplicant
2920 * will use the RSN IE in M3 message and firmware has to
2921 * advertise the same in beacon/probe response. Send
2922 * the complete RSN IE capability field to firmware
2923 */
2924 if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) &&
2925 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
2926 ar->fw_capabilities)) {
2927 res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx,
2928 WLAN_EID_RSN, WMI_RSN_IE_CAPB,
2929 (const u8 *) &rsn_capab,
2930 sizeof(rsn_capab));
2931 vif->rsn_capab = rsn_capab;
2932 if (res < 0)
2933 return res;
2934 }
2935
2936 memcpy(&vif->profile, &p, sizeof(p));
2937 res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p);
2938 if (res < 0)
2939 return res;
2940
2941 return 0;
2942 }
2943
2944 static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev,
2945 struct cfg80211_beacon_data *beacon)
2946 {
2947 struct ath6kl_vif *vif = netdev_priv(dev);
2948
2949 if (!ath6kl_cfg80211_ready(vif))
2950 return -EIO;
2951
2952 if (vif->next_mode != AP_NETWORK)
2953 return -EOPNOTSUPP;
2954
2955 return ath6kl_set_ies(vif, beacon);
2956 }
2957
2958 static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev)
2959 {
2960 struct ath6kl *ar = ath6kl_priv(dev);
2961 struct ath6kl_vif *vif = netdev_priv(dev);
2962
2963 if (vif->nw_type != AP_NETWORK)
2964 return -EOPNOTSUPP;
2965 if (!test_bit(CONNECTED, &vif->flags))
2966 return -ENOTCONN;
2967
2968 ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx);
2969 clear_bit(CONNECTED, &vif->flags);
2970
2971 /* Restore ht setting in firmware */
2972 return ath6kl_restore_htcap(vif);
2973 }
2974
2975 static const u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
2976
2977 static int ath6kl_del_station(struct wiphy *wiphy, struct net_device *dev,
2978 const u8 *mac)
2979 {
2980 struct ath6kl *ar = ath6kl_priv(dev);
2981 struct ath6kl_vif *vif = netdev_priv(dev);
2982 const u8 *addr = mac ? mac : bcast_addr;
2983
2984 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_DEAUTH,
2985 addr, WLAN_REASON_PREV_AUTH_NOT_VALID);
2986 }
2987
2988 static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev,
2989 const u8 *mac,
2990 struct station_parameters *params)
2991 {
2992 struct ath6kl *ar = ath6kl_priv(dev);
2993 struct ath6kl_vif *vif = netdev_priv(dev);
2994 int err;
2995
2996 if (vif->nw_type != AP_NETWORK)
2997 return -EOPNOTSUPP;
2998
2999 err = cfg80211_check_station_change(wiphy, params,
3000 CFG80211_STA_AP_MLME_CLIENT);
3001 if (err)
3002 return err;
3003
3004 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED))
3005 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
3006 WMI_AP_MLME_AUTHORIZE, mac, 0);
3007 return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx,
3008 WMI_AP_MLME_UNAUTHORIZE, mac, 0);
3009 }
3010
3011 static int ath6kl_remain_on_channel(struct wiphy *wiphy,
3012 struct wireless_dev *wdev,
3013 struct ieee80211_channel *chan,
3014 unsigned int duration,
3015 u64 *cookie)
3016 {
3017 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3018 struct ath6kl *ar = ath6kl_priv(vif->ndev);
3019 u32 id;
3020
3021 /* TODO: if already pending or ongoing remain-on-channel,
3022 * return -EBUSY */
3023 id = ++vif->last_roc_id;
3024 if (id == 0) {
3025 /* Do not use 0 as the cookie value */
3026 id = ++vif->last_roc_id;
3027 }
3028 *cookie = id;
3029
3030 return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx,
3031 chan->center_freq, duration);
3032 }
3033
3034 static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy,
3035 struct wireless_dev *wdev,
3036 u64 cookie)
3037 {
3038 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3039 struct ath6kl *ar = ath6kl_priv(vif->ndev);
3040
3041 if (cookie != vif->last_roc_id)
3042 return -ENOENT;
3043 vif->last_cancel_roc_id = cookie;
3044
3045 return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx);
3046 }
3047
3048 static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif,
3049 const u8 *buf, size_t len,
3050 unsigned int freq)
3051 {
3052 struct ath6kl *ar = vif->ar;
3053 const u8 *pos;
3054 u8 *p2p;
3055 int p2p_len;
3056 int ret;
3057 const struct ieee80211_mgmt *mgmt;
3058
3059 mgmt = (const struct ieee80211_mgmt *) buf;
3060
3061 /* Include P2P IE(s) from the frame generated in user space. */
3062
3063 p2p = kmalloc(len, GFP_KERNEL);
3064 if (p2p == NULL)
3065 return -ENOMEM;
3066 p2p_len = 0;
3067
3068 pos = mgmt->u.probe_resp.variable;
3069 while (pos + 1 < buf + len) {
3070 if (pos + 2 + pos[1] > buf + len)
3071 break;
3072 if (ath6kl_is_p2p_ie(pos)) {
3073 memcpy(p2p + p2p_len, pos, 2 + pos[1]);
3074 p2p_len += 2 + pos[1];
3075 }
3076 pos += 2 + pos[1];
3077 }
3078
3079 ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq,
3080 mgmt->da, p2p, p2p_len);
3081 kfree(p2p);
3082 return ret;
3083 }
3084
3085 static bool ath6kl_mgmt_powersave_ap(struct ath6kl_vif *vif,
3086 u32 id,
3087 u32 freq,
3088 u32 wait,
3089 const u8 *buf,
3090 size_t len,
3091 bool *more_data,
3092 bool no_cck)
3093 {
3094 struct ieee80211_mgmt *mgmt;
3095 struct ath6kl_sta *conn;
3096 bool is_psq_empty = false;
3097 struct ath6kl_mgmt_buff *mgmt_buf;
3098 size_t mgmt_buf_size;
3099 struct ath6kl *ar = vif->ar;
3100
3101 mgmt = (struct ieee80211_mgmt *) buf;
3102 if (is_multicast_ether_addr(mgmt->da))
3103 return false;
3104
3105 conn = ath6kl_find_sta(vif, mgmt->da);
3106 if (!conn)
3107 return false;
3108
3109 if (conn->sta_flags & STA_PS_SLEEP) {
3110 if (!(conn->sta_flags & STA_PS_POLLED)) {
3111 /* Queue the frames if the STA is sleeping */
3112 mgmt_buf_size = len + sizeof(struct ath6kl_mgmt_buff);
3113 mgmt_buf = kmalloc(mgmt_buf_size, GFP_KERNEL);
3114 if (!mgmt_buf)
3115 return false;
3116
3117 INIT_LIST_HEAD(&mgmt_buf->list);
3118 mgmt_buf->id = id;
3119 mgmt_buf->freq = freq;
3120 mgmt_buf->wait = wait;
3121 mgmt_buf->len = len;
3122 mgmt_buf->no_cck = no_cck;
3123 memcpy(mgmt_buf->buf, buf, len);
3124 spin_lock_bh(&conn->psq_lock);
3125 is_psq_empty = skb_queue_empty(&conn->psq) &&
3126 (conn->mgmt_psq_len == 0);
3127 list_add_tail(&mgmt_buf->list, &conn->mgmt_psq);
3128 conn->mgmt_psq_len++;
3129 spin_unlock_bh(&conn->psq_lock);
3130
3131 /*
3132 * If this is the first pkt getting queued
3133 * for this STA, update the PVB for this
3134 * STA.
3135 */
3136 if (is_psq_empty)
3137 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
3138 conn->aid, 1);
3139 return true;
3140 }
3141
3142 /*
3143 * This tx is because of a PsPoll.
3144 * Determine if MoreData bit has to be set.
3145 */
3146 spin_lock_bh(&conn->psq_lock);
3147 if (!skb_queue_empty(&conn->psq) || (conn->mgmt_psq_len != 0))
3148 *more_data = true;
3149 spin_unlock_bh(&conn->psq_lock);
3150 }
3151
3152 return false;
3153 }
3154
3155 /* Check if SSID length is greater than DIRECT- */
3156 static bool ath6kl_is_p2p_go_ssid(const u8 *buf, size_t len)
3157 {
3158 const struct ieee80211_mgmt *mgmt;
3159 mgmt = (const struct ieee80211_mgmt *) buf;
3160
3161 /* variable[1] contains the SSID tag length */
3162 if (buf + len >= &mgmt->u.probe_resp.variable[1] &&
3163 (mgmt->u.probe_resp.variable[1] > P2P_WILDCARD_SSID_LEN)) {
3164 return true;
3165 }
3166
3167 return false;
3168 }
3169
3170 static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3171 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
3172 {
3173 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3174 struct ath6kl *ar = ath6kl_priv(vif->ndev);
3175 struct ieee80211_channel *chan = params->chan;
3176 const u8 *buf = params->buf;
3177 size_t len = params->len;
3178 unsigned int wait = params->wait;
3179 bool no_cck = params->no_cck;
3180 u32 id, freq;
3181 const struct ieee80211_mgmt *mgmt;
3182 bool more_data, queued;
3183
3184 /* default to the current channel, but use the one specified as argument
3185 * if any
3186 */
3187 freq = vif->ch_hint;
3188 if (chan)
3189 freq = chan->center_freq;
3190
3191 /* never send freq zero to the firmware */
3192 if (WARN_ON(freq == 0))
3193 return -EINVAL;
3194
3195 mgmt = (const struct ieee80211_mgmt *) buf;
3196 if (vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) &&
3197 ieee80211_is_probe_resp(mgmt->frame_control) &&
3198 ath6kl_is_p2p_go_ssid(buf, len)) {
3199 /*
3200 * Send Probe Response frame in GO mode using a separate WMI
3201 * command to allow the target to fill in the generic IEs.
3202 */
3203 *cookie = 0; /* TX status not supported */
3204 return ath6kl_send_go_probe_resp(vif, buf, len, freq);
3205 }
3206
3207 id = vif->send_action_id++;
3208 if (id == 0) {
3209 /*
3210 * 0 is a reserved value in the WMI command and shall not be
3211 * used for the command.
3212 */
3213 id = vif->send_action_id++;
3214 }
3215
3216 *cookie = id;
3217
3218 /* AP mode Power saving processing */
3219 if (vif->nw_type == AP_NETWORK) {
3220 queued = ath6kl_mgmt_powersave_ap(vif, id, freq, wait, buf, len,
3221 &more_data, no_cck);
3222 if (queued)
3223 return 0;
3224 }
3225
3226 return ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, id, freq,
3227 wait, buf, len, no_cck);
3228 }
3229
3230 static void ath6kl_mgmt_frame_register(struct wiphy *wiphy,
3231 struct wireless_dev *wdev,
3232 u16 frame_type, bool reg)
3233 {
3234 struct ath6kl_vif *vif = ath6kl_vif_from_wdev(wdev);
3235
3236 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n",
3237 __func__, frame_type, reg);
3238 if (frame_type == IEEE80211_STYPE_PROBE_REQ) {
3239 /*
3240 * Note: This notification callback is not allowed to sleep, so
3241 * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we
3242 * hardcode target to report Probe Request frames all the time.
3243 */
3244 vif->probe_req_report = reg;
3245 }
3246 }
3247
3248 static int ath6kl_cfg80211_sscan_start(struct wiphy *wiphy,
3249 struct net_device *dev,
3250 struct cfg80211_sched_scan_request *request)
3251 {
3252 struct ath6kl *ar = ath6kl_priv(dev);
3253 struct ath6kl_vif *vif = netdev_priv(dev);
3254 u16 interval;
3255 int ret, rssi_thold;
3256 int n_match_sets = request->n_match_sets;
3257
3258 /*
3259 * If there's a matchset w/o an SSID, then assume it's just for
3260 * the RSSI (nothing else is currently supported) and ignore it.
3261 * The device only supports a global RSSI filter that we set below.
3262 */
3263 if (n_match_sets == 1 && !request->match_sets[0].ssid.ssid_len)
3264 n_match_sets = 0;
3265
3266 if (ar->state != ATH6KL_STATE_ON)
3267 return -EIO;
3268
3269 if (vif->sme_state != SME_DISCONNECTED)
3270 return -EBUSY;
3271
3272 ath6kl_cfg80211_scan_complete_event(vif, true);
3273
3274 ret = ath6kl_set_probed_ssids(ar, vif, request->ssids,
3275 request->n_ssids,
3276 request->match_sets,
3277 n_match_sets);
3278 if (ret < 0)
3279 return ret;
3280
3281 if (!n_match_sets) {
3282 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
3283 ALL_BSS_FILTER, 0);
3284 if (ret < 0)
3285 return ret;
3286 } else {
3287 ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
3288 MATCHED_SSID_FILTER, 0);
3289 if (ret < 0)
3290 return ret;
3291 }
3292
3293 if (test_bit(ATH6KL_FW_CAPABILITY_RSSI_SCAN_THOLD,
3294 ar->fw_capabilities)) {
3295 if (request->min_rssi_thold <= NL80211_SCAN_RSSI_THOLD_OFF)
3296 rssi_thold = 0;
3297 else if (request->min_rssi_thold < -127)
3298 rssi_thold = -127;
3299 else
3300 rssi_thold = request->min_rssi_thold;
3301
3302 ret = ath6kl_wmi_set_rssi_filter_cmd(ar->wmi, vif->fw_vif_idx,
3303 rssi_thold);
3304 if (ret) {
3305 ath6kl_err("failed to set RSSI threshold for scan\n");
3306 return ret;
3307 }
3308 }
3309
3310 /* fw uses seconds, also make sure that it's >0 */
3311 interval = max_t(u16, 1, request->interval / 1000);
3312
3313 ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx,
3314 interval, interval,
3315 vif->bg_scan_period, 0, 0, 0, 3, 0, 0, 0);
3316
3317 /* this also clears IE in fw if it's not set */
3318 ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx,
3319 WMI_FRAME_PROBE_REQ,
3320 request->ie, request->ie_len);
3321 if (ret) {
3322 ath6kl_warn("Failed to set probe request IE for scheduled scan: %d\n",
3323 ret);
3324 return ret;
3325 }
3326
3327 ret = ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, true);
3328 if (ret)
3329 return ret;
3330
3331 set_bit(SCHED_SCANNING, &vif->flags);
3332
3333 return 0;
3334 }
3335
3336 static int ath6kl_cfg80211_sscan_stop(struct wiphy *wiphy,
3337 struct net_device *dev)
3338 {
3339 struct ath6kl_vif *vif = netdev_priv(dev);
3340 bool stopped;
3341
3342 stopped = __ath6kl_cfg80211_sscan_stop(vif);
3343
3344 if (!stopped)
3345 return -EIO;
3346
3347 return 0;
3348 }
3349
3350 static int ath6kl_cfg80211_set_bitrate(struct wiphy *wiphy,
3351 struct net_device *dev,
3352 const u8 *addr,
3353 const struct cfg80211_bitrate_mask *mask)
3354 {
3355 struct ath6kl *ar = ath6kl_priv(dev);
3356 struct ath6kl_vif *vif = netdev_priv(dev);
3357
3358 return ath6kl_wmi_set_bitrate_mask(ar->wmi, vif->fw_vif_idx,
3359 mask);
3360 }
3361
3362 static int ath6kl_cfg80211_set_txe_config(struct wiphy *wiphy,
3363 struct net_device *dev,
3364 u32 rate, u32 pkts, u32 intvl)
3365 {
3366 struct ath6kl *ar = ath6kl_priv(dev);
3367 struct ath6kl_vif *vif = netdev_priv(dev);
3368
3369 if (vif->nw_type != INFRA_NETWORK ||
3370 !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY, ar->fw_capabilities))
3371 return -EOPNOTSUPP;
3372
3373 if (vif->sme_state != SME_CONNECTED)
3374 return -ENOTCONN;
3375
3376 /* save this since the firmware won't report the interval */
3377 vif->txe_intvl = intvl;
3378
3379 return ath6kl_wmi_set_txe_notify(ar->wmi, vif->fw_vif_idx,
3380 rate, pkts, intvl);
3381 }
3382
3383 static const struct ieee80211_txrx_stypes
3384 ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = {
3385 [NL80211_IFTYPE_STATION] = {
3386 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3387 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3388 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3389 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3390 },
3391 [NL80211_IFTYPE_AP] = {
3392 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3393 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3394 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3395 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3396 },
3397 [NL80211_IFTYPE_P2P_CLIENT] = {
3398 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3399 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3400 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3401 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3402 },
3403 [NL80211_IFTYPE_P2P_GO] = {
3404 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3405 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
3406 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
3407 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
3408 },
3409 };
3410
3411 static struct cfg80211_ops ath6kl_cfg80211_ops = {
3412 .add_virtual_intf = ath6kl_cfg80211_add_iface,
3413 .del_virtual_intf = ath6kl_cfg80211_del_iface,
3414 .change_virtual_intf = ath6kl_cfg80211_change_iface,
3415 .scan = ath6kl_cfg80211_scan,
3416 .connect = ath6kl_cfg80211_connect,
3417 .disconnect = ath6kl_cfg80211_disconnect,
3418 .add_key = ath6kl_cfg80211_add_key,
3419 .get_key = ath6kl_cfg80211_get_key,
3420 .del_key = ath6kl_cfg80211_del_key,
3421 .set_default_key = ath6kl_cfg80211_set_default_key,
3422 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,
3423 .set_tx_power = ath6kl_cfg80211_set_txpower,
3424 .get_tx_power = ath6kl_cfg80211_get_txpower,
3425 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,
3426 .join_ibss = ath6kl_cfg80211_join_ibss,
3427 .leave_ibss = ath6kl_cfg80211_leave_ibss,
3428 .get_station = ath6kl_get_station,
3429 .set_pmksa = ath6kl_set_pmksa,
3430 .del_pmksa = ath6kl_del_pmksa,
3431 .flush_pmksa = ath6kl_flush_pmksa,
3432 CFG80211_TESTMODE_CMD(ath6kl_tm_cmd)
3433 #ifdef CONFIG_PM
3434 .suspend = __ath6kl_cfg80211_suspend,
3435 .resume = __ath6kl_cfg80211_resume,
3436 #endif
3437 .start_ap = ath6kl_start_ap,
3438 .change_beacon = ath6kl_change_beacon,
3439 .stop_ap = ath6kl_stop_ap,
3440 .del_station = ath6kl_del_station,
3441 .change_station = ath6kl_change_station,
3442 .remain_on_channel = ath6kl_remain_on_channel,
3443 .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel,
3444 .mgmt_tx = ath6kl_mgmt_tx,
3445 .mgmt_frame_register = ath6kl_mgmt_frame_register,
3446 .sched_scan_start = ath6kl_cfg80211_sscan_start,
3447 .sched_scan_stop = ath6kl_cfg80211_sscan_stop,
3448 .set_bitrate_mask = ath6kl_cfg80211_set_bitrate,
3449 .set_cqm_txe_config = ath6kl_cfg80211_set_txe_config,
3450 };
3451
3452 void ath6kl_cfg80211_stop(struct ath6kl_vif *vif)
3453 {
3454 ath6kl_cfg80211_sscan_disable(vif);
3455
3456 switch (vif->sme_state) {
3457 case SME_DISCONNECTED:
3458 break;
3459 case SME_CONNECTING:
3460 cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0,
3461 NULL, 0,
3462 WLAN_STATUS_UNSPECIFIED_FAILURE,
3463 GFP_KERNEL);
3464 break;
3465 case SME_CONNECTED:
3466 cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL);
3467 break;
3468 }
3469
3470 if (vif->ar->state != ATH6KL_STATE_RECOVERY &&
3471 (test_bit(CONNECTED, &vif->flags) ||
3472 test_bit(CONNECT_PEND, &vif->flags)))
3473 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
3474
3475 vif->sme_state = SME_DISCONNECTED;
3476 clear_bit(CONNECTED, &vif->flags);
3477 clear_bit(CONNECT_PEND, &vif->flags);
3478
3479 /* Stop netdev queues, needed during recovery */
3480 netif_stop_queue(vif->ndev);
3481 netif_carrier_off(vif->ndev);
3482
3483 /* disable scanning */
3484 if (vif->ar->state != ATH6KL_STATE_RECOVERY &&
3485 ath6kl_wmi_scanparams_cmd(vif->ar->wmi, vif->fw_vif_idx, 0xFFFF,
3486 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0)
3487 ath6kl_warn("failed to disable scan during stop\n");
3488
3489 ath6kl_cfg80211_scan_complete_event(vif, true);
3490 }
3491
3492 void ath6kl_cfg80211_stop_all(struct ath6kl *ar)
3493 {
3494 struct ath6kl_vif *vif;
3495
3496 vif = ath6kl_vif_first(ar);
3497 if (!vif && ar->state != ATH6KL_STATE_RECOVERY) {
3498 /* save the current power mode before enabling power save */
3499 ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode;
3500
3501 if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0)
3502 ath6kl_warn("ath6kl_deep_sleep_enable: wmi_powermode_cmd failed\n");
3503 return;
3504 }
3505
3506 /*
3507 * FIXME: we should take ar->list_lock to protect changes in the
3508 * vif_list, but that's not trivial to do as ath6kl_cfg80211_stop()
3509 * sleeps.
3510 */
3511 list_for_each_entry(vif, &ar->vif_list, list)
3512 ath6kl_cfg80211_stop(vif);
3513 }
3514
3515 static void ath6kl_cfg80211_reg_notify(struct wiphy *wiphy,
3516 struct regulatory_request *request)
3517 {
3518 struct ath6kl *ar = wiphy_priv(wiphy);
3519 u32 rates[IEEE80211_NUM_BANDS];
3520 int ret, i;
3521
3522 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
3523 "cfg reg_notify %c%c%s%s initiator %d hint_type %d\n",
3524 request->alpha2[0], request->alpha2[1],
3525 request->intersect ? " intersect" : "",
3526 request->processed ? " processed" : "",
3527 request->initiator, request->user_reg_hint_type);
3528
3529 if (request->user_reg_hint_type != NL80211_USER_REG_HINT_CELL_BASE)
3530 return;
3531
3532 ret = ath6kl_wmi_set_regdomain_cmd(ar->wmi, request->alpha2);
3533 if (ret) {
3534 ath6kl_err("failed to set regdomain: %d\n", ret);
3535 return;
3536 }
3537
3538 /*
3539 * Firmware will apply the regdomain change only after a scan is
3540 * issued and it will send a WMI_REGDOMAIN_EVENTID when it has been
3541 * changed.
3542 */
3543
3544 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
3545 if (wiphy->bands[i])
3546 rates[i] = (1 << wiphy->bands[i]->n_bitrates) - 1;
3547
3548
3549 ret = ath6kl_wmi_beginscan_cmd(ar->wmi, 0, WMI_LONG_SCAN, false,
3550 false, 0, ATH6KL_FG_SCAN_INTERVAL,
3551 0, NULL, false, rates);
3552 if (ret) {
3553 ath6kl_err("failed to start scan for a regdomain change: %d\n",
3554 ret);
3555 return;
3556 }
3557 }
3558
3559 static int ath6kl_cfg80211_vif_init(struct ath6kl_vif *vif)
3560 {
3561 vif->aggr_cntxt = aggr_init(vif);
3562 if (!vif->aggr_cntxt) {
3563 ath6kl_err("failed to initialize aggr\n");
3564 return -ENOMEM;
3565 }
3566
3567 setup_timer(&vif->disconnect_timer, disconnect_timer_handler,
3568 (unsigned long) vif->ndev);
3569 setup_timer(&vif->sched_scan_timer, ath6kl_wmi_sscan_timer,
3570 (unsigned long) vif);
3571
3572 set_bit(WMM_ENABLED, &vif->flags);
3573 spin_lock_init(&vif->if_lock);
3574
3575 INIT_LIST_HEAD(&vif->mc_filter);
3576
3577 return 0;
3578 }
3579
3580 void ath6kl_cfg80211_vif_stop(struct ath6kl_vif *vif, bool wmi_ready)
3581 {
3582 static u8 bcast_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
3583 bool discon_issued;
3584
3585 netif_stop_queue(vif->ndev);
3586
3587 clear_bit(WLAN_ENABLED, &vif->flags);
3588
3589 if (wmi_ready) {
3590 discon_issued = test_bit(CONNECTED, &vif->flags) ||
3591 test_bit(CONNECT_PEND, &vif->flags);
3592 ath6kl_disconnect(vif);
3593 del_timer(&vif->disconnect_timer);
3594
3595 if (discon_issued)
3596 ath6kl_disconnect_event(vif, DISCONNECT_CMD,
3597 (vif->nw_type & AP_NETWORK) ?
3598 bcast_mac : vif->bssid,
3599 0, NULL, 0);
3600 }
3601
3602 if (vif->scan_req) {
3603 cfg80211_scan_done(vif->scan_req, true);
3604 vif->scan_req = NULL;
3605 }
3606
3607 /* need to clean up enhanced bmiss detection fw state */
3608 ath6kl_cfg80211_sta_bmiss_enhance(vif, false);
3609 }
3610
3611 void ath6kl_cfg80211_vif_cleanup(struct ath6kl_vif *vif)
3612 {
3613 struct ath6kl *ar = vif->ar;
3614 struct ath6kl_mc_filter *mc_filter, *tmp;
3615
3616 aggr_module_destroy(vif->aggr_cntxt);
3617
3618 ar->avail_idx_map |= BIT(vif->fw_vif_idx);
3619
3620 if (vif->nw_type == ADHOC_NETWORK)
3621 ar->ibss_if_active = false;
3622
3623 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
3624 list_del(&mc_filter->list);
3625 kfree(mc_filter);
3626 }
3627
3628 unregister_netdevice(vif->ndev);
3629
3630 ar->num_vif--;
3631 }
3632
3633 struct wireless_dev *ath6kl_interface_add(struct ath6kl *ar, const char *name,
3634 enum nl80211_iftype type,
3635 u8 fw_vif_idx, u8 nw_type)
3636 {
3637 struct net_device *ndev;
3638 struct ath6kl_vif *vif;
3639
3640 ndev = alloc_netdev(sizeof(*vif), name, ether_setup);
3641 if (!ndev)
3642 return NULL;
3643
3644 vif = netdev_priv(ndev);
3645 ndev->ieee80211_ptr = &vif->wdev;
3646 vif->wdev.wiphy = ar->wiphy;
3647 vif->ar = ar;
3648 vif->ndev = ndev;
3649 SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy));
3650 vif->wdev.netdev = ndev;
3651 vif->wdev.iftype = type;
3652 vif->fw_vif_idx = fw_vif_idx;
3653 vif->nw_type = nw_type;
3654 vif->next_mode = nw_type;
3655 vif->listen_intvl_t = ATH6KL_DEFAULT_LISTEN_INTVAL;
3656 vif->bmiss_time_t = ATH6KL_DEFAULT_BMISS_TIME;
3657 vif->bg_scan_period = 0;
3658 vif->htcap[IEEE80211_BAND_2GHZ].ht_enable = true;
3659 vif->htcap[IEEE80211_BAND_5GHZ].ht_enable = true;
3660
3661 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN);
3662 if (fw_vif_idx != 0) {
3663 ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) |
3664 0x2;
3665 if (test_bit(ATH6KL_FW_CAPABILITY_CUSTOM_MAC_ADDR,
3666 ar->fw_capabilities))
3667 ndev->dev_addr[4] ^= 0x80;
3668 }
3669
3670 init_netdev(ndev);
3671
3672 ath6kl_init_control_info(vif);
3673
3674 if (ath6kl_cfg80211_vif_init(vif))
3675 goto err;
3676
3677 if (register_netdevice(ndev))
3678 goto err;
3679
3680 ar->avail_idx_map &= ~BIT(fw_vif_idx);
3681 vif->sme_state = SME_DISCONNECTED;
3682 set_bit(WLAN_ENABLED, &vif->flags);
3683 ar->wlan_pwr_state = WLAN_POWER_STATE_ON;
3684
3685 if (type == NL80211_IFTYPE_ADHOC)
3686 ar->ibss_if_active = true;
3687
3688 spin_lock_bh(&ar->list_lock);
3689 list_add_tail(&vif->list, &ar->vif_list);
3690 spin_unlock_bh(&ar->list_lock);
3691
3692 return &vif->wdev;
3693
3694 err:
3695 aggr_module_destroy(vif->aggr_cntxt);
3696 free_netdev(ndev);
3697 return NULL;
3698 }
3699
3700 #ifdef CONFIG_PM
3701 static const struct wiphy_wowlan_support ath6kl_wowlan_support = {
3702 .flags = WIPHY_WOWLAN_MAGIC_PKT |
3703 WIPHY_WOWLAN_DISCONNECT |
3704 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
3705 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
3706 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
3707 WIPHY_WOWLAN_4WAY_HANDSHAKE,
3708 .n_patterns = WOW_MAX_FILTERS_PER_LIST,
3709 .pattern_min_len = 1,
3710 .pattern_max_len = WOW_PATTERN_SIZE,
3711 };
3712 #endif
3713
3714 int ath6kl_cfg80211_init(struct ath6kl *ar)
3715 {
3716 struct wiphy *wiphy = ar->wiphy;
3717 bool band_2gig = false, band_5gig = false, ht = false;
3718 int ret;
3719
3720 wiphy->mgmt_stypes = ath6kl_mgmt_stypes;
3721
3722 wiphy->max_remain_on_channel_duration = 5000;
3723
3724 /* set device pointer for wiphy */
3725 set_wiphy_dev(wiphy, ar->dev);
3726
3727 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3728 BIT(NL80211_IFTYPE_ADHOC) |
3729 BIT(NL80211_IFTYPE_AP);
3730 if (ar->p2p) {
3731 wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) |
3732 BIT(NL80211_IFTYPE_P2P_CLIENT);
3733 }
3734
3735 if (config_enabled(CONFIG_ATH6KL_REGDOMAIN) &&
3736 test_bit(ATH6KL_FW_CAPABILITY_REGDOMAIN, ar->fw_capabilities)) {
3737 wiphy->reg_notifier = ath6kl_cfg80211_reg_notify;
3738 ar->wiphy->features |= NL80211_FEATURE_CELL_BASE_REG_HINTS;
3739 }
3740
3741 /* max num of ssids that can be probed during scanning */
3742 wiphy->max_scan_ssids = MAX_PROBED_SSIDS;
3743
3744 /* max num of ssids that can be matched after scan */
3745 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_MATCH_LIST,
3746 ar->fw_capabilities))
3747 wiphy->max_match_sets = MAX_PROBED_SSIDS;
3748
3749 wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */
3750 switch (ar->hw.cap) {
3751 case WMI_11AN_CAP:
3752 ht = true;
3753 case WMI_11A_CAP:
3754 band_5gig = true;
3755 break;
3756 case WMI_11GN_CAP:
3757 ht = true;
3758 case WMI_11G_CAP:
3759 band_2gig = true;
3760 break;
3761 case WMI_11AGN_CAP:
3762 ht = true;
3763 case WMI_11AG_CAP:
3764 band_2gig = true;
3765 band_5gig = true;
3766 break;
3767 default:
3768 ath6kl_err("invalid phy capability!\n");
3769 return -EINVAL;
3770 }
3771
3772 /*
3773 * Even if the fw has HT support, advertise HT cap only when
3774 * the firmware has support to override RSN capability, otherwise
3775 * 4-way handshake would fail.
3776 */
3777 if (!(ht &&
3778 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
3779 ar->fw_capabilities))) {
3780 ath6kl_band_2ghz.ht_cap.cap = 0;
3781 ath6kl_band_2ghz.ht_cap.ht_supported = false;
3782 ath6kl_band_5ghz.ht_cap.cap = 0;
3783 ath6kl_band_5ghz.ht_cap.ht_supported = false;
3784 }
3785
3786 if (ar->hw.flags & ATH6KL_HW_64BIT_RATES) {
3787 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3788 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3789 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[1] = 0xff;
3790 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[1] = 0xff;
3791 } else {
3792 ath6kl_band_2ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3793 ath6kl_band_5ghz.ht_cap.mcs.rx_mask[0] = 0xff;
3794 }
3795
3796 if (band_2gig)
3797 wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz;
3798 if (band_5gig)
3799 wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz;
3800
3801 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3802
3803 wiphy->cipher_suites = cipher_suites;
3804 wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
3805
3806 #ifdef CONFIG_PM
3807 wiphy->wowlan = &ath6kl_wowlan_support;
3808 #endif
3809
3810 wiphy->max_sched_scan_ssids = MAX_PROBED_SSIDS;
3811
3812 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM |
3813 WIPHY_FLAG_HAVE_AP_SME |
3814 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3815 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
3816
3817 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN_V2, ar->fw_capabilities))
3818 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
3819
3820 if (test_bit(ATH6KL_FW_CAPABILITY_INACTIVITY_TIMEOUT,
3821 ar->fw_capabilities))
3822 ar->wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;
3823
3824 ar->wiphy->probe_resp_offload =
3825 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3826 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3827 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3828
3829 ret = wiphy_register(wiphy);
3830 if (ret < 0) {
3831 ath6kl_err("couldn't register wiphy device\n");
3832 return ret;
3833 }
3834
3835 ar->wiphy_registered = true;
3836
3837 return 0;
3838 }
3839
3840 void ath6kl_cfg80211_cleanup(struct ath6kl *ar)
3841 {
3842 wiphy_unregister(ar->wiphy);
3843
3844 ar->wiphy_registered = false;
3845 }
3846
3847 struct ath6kl *ath6kl_cfg80211_create(void)
3848 {
3849 struct ath6kl *ar;
3850 struct wiphy *wiphy;
3851
3852 /* create a new wiphy for use with cfg80211 */
3853 wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));
3854
3855 if (!wiphy) {
3856 ath6kl_err("couldn't allocate wiphy device\n");
3857 return NULL;
3858 }
3859
3860 ar = wiphy_priv(wiphy);
3861 ar->wiphy = wiphy;
3862
3863 return ar;
3864 }
3865
3866 /* Note: ar variable must not be accessed after calling this! */
3867 void ath6kl_cfg80211_destroy(struct ath6kl *ar)
3868 {
3869 int i;
3870
3871 for (i = 0; i < AP_MAX_NUM_STA; i++)
3872 kfree(ar->sta_list[i].aggr_conn);
3873
3874 wiphy_free(ar->wiphy);
3875 }
3876
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