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ath6kl: implement suspend support
[deliverable/linux.git] / drivers / net / wireless / ath / ath6kl / cfg80211.c
CommitLineData
bdcd8170
KV		 1/*
2 * Copyright (c) 2004-2011 Atheros Communications Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include "core.h"
18#include "cfg80211.h"
19#include "debug.h"
abcb344b 20#include "hif-ops.h"
bdcd8170
KV		 21
22#define RATETAB_ENT(_rate, _rateid, _flags) { \
23 .bitrate = (_rate), \
24 .flags = (_flags), \
25 .hw_value = (_rateid), \
26}
27
28#define CHAN2G(_channel, _freq, _flags) { \
29 .band = IEEE80211_BAND_2GHZ, \
30 .hw_value = (_channel), \
31 .center_freq = (_freq), \
32 .flags = (_flags), \
33 .max_antenna_gain = 0, \
34 .max_power = 30, \
35}
36
37#define CHAN5G(_channel, _flags) { \
38 .band = IEEE80211_BAND_5GHZ, \
39 .hw_value = (_channel), \
40 .center_freq = 5000 + (5 * (_channel)), \
41 .flags = (_flags), \
42 .max_antenna_gain = 0, \
43 .max_power = 30, \
44}
45
46static struct ieee80211_rate ath6kl_rates[] = {
47 RATETAB_ENT(10, 0x1, 0),
48 RATETAB_ENT(20, 0x2, 0),
49 RATETAB_ENT(55, 0x4, 0),
50 RATETAB_ENT(110, 0x8, 0),
51 RATETAB_ENT(60, 0x10, 0),
52 RATETAB_ENT(90, 0x20, 0),
53 RATETAB_ENT(120, 0x40, 0),
54 RATETAB_ENT(180, 0x80, 0),
55 RATETAB_ENT(240, 0x100, 0),
56 RATETAB_ENT(360, 0x200, 0),
57 RATETAB_ENT(480, 0x400, 0),
58 RATETAB_ENT(540, 0x800, 0),
59};
60
61#define ath6kl_a_rates (ath6kl_rates + 4)
62#define ath6kl_a_rates_size 8
63#define ath6kl_g_rates (ath6kl_rates + 0)
64#define ath6kl_g_rates_size 12
65
66static struct ieee80211_channel ath6kl_2ghz_channels[] = {
67 CHAN2G(1, 2412, 0),
68 CHAN2G(2, 2417, 0),
69 CHAN2G(3, 2422, 0),
70 CHAN2G(4, 2427, 0),
71 CHAN2G(5, 2432, 0),
72 CHAN2G(6, 2437, 0),
73 CHAN2G(7, 2442, 0),
74 CHAN2G(8, 2447, 0),
75 CHAN2G(9, 2452, 0),
76 CHAN2G(10, 2457, 0),
77 CHAN2G(11, 2462, 0),
78 CHAN2G(12, 2467, 0),
79 CHAN2G(13, 2472, 0),
80 CHAN2G(14, 2484, 0),
81};
82
83static struct ieee80211_channel ath6kl_5ghz_a_channels[] = {
84 CHAN5G(34, 0), CHAN5G(36, 0),
85 CHAN5G(38, 0), CHAN5G(40, 0),
86 CHAN5G(42, 0), CHAN5G(44, 0),
87 CHAN5G(46, 0), CHAN5G(48, 0),
88 CHAN5G(52, 0), CHAN5G(56, 0),
89 CHAN5G(60, 0), CHAN5G(64, 0),
90 CHAN5G(100, 0), CHAN5G(104, 0),
91 CHAN5G(108, 0), CHAN5G(112, 0),
92 CHAN5G(116, 0), CHAN5G(120, 0),
93 CHAN5G(124, 0), CHAN5G(128, 0),
94 CHAN5G(132, 0), CHAN5G(136, 0),
95 CHAN5G(140, 0), CHAN5G(149, 0),
96 CHAN5G(153, 0), CHAN5G(157, 0),
97 CHAN5G(161, 0), CHAN5G(165, 0),
98 CHAN5G(184, 0), CHAN5G(188, 0),
99 CHAN5G(192, 0), CHAN5G(196, 0),
100 CHAN5G(200, 0), CHAN5G(204, 0),
101 CHAN5G(208, 0), CHAN5G(212, 0),
102 CHAN5G(216, 0),
103};
104
105static struct ieee80211_supported_band ath6kl_band_2ghz = {
106 .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels),
107 .channels = ath6kl_2ghz_channels,
108 .n_bitrates = ath6kl_g_rates_size,
109 .bitrates = ath6kl_g_rates,
110};
111
112static struct ieee80211_supported_band ath6kl_band_5ghz = {
113 .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels),
114 .channels = ath6kl_5ghz_a_channels,
115 .n_bitrates = ath6kl_a_rates_size,
116 .bitrates = ath6kl_a_rates,
117};
118
119static int ath6kl_set_wpa_version(struct ath6kl *ar,
120 enum nl80211_wpa_versions wpa_version)
121{
122 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version);
123
124 if (!wpa_version) {
125 ar->auth_mode = NONE_AUTH;
126 } else if (wpa_version & NL80211_WPA_VERSION_2) {
127 ar->auth_mode = WPA2_AUTH;
128 } else if (wpa_version & NL80211_WPA_VERSION_1) {
129 ar->auth_mode = WPA_AUTH;
130 } else {
131 ath6kl_err("%s: %u not supported\n", __func__, wpa_version);
132 return -ENOTSUPP;
133 }
134
135 return 0;
136}
137
138static int ath6kl_set_auth_type(struct ath6kl *ar,
139 enum nl80211_auth_type auth_type)
140{
141
142 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type);
143
144 switch (auth_type) {
145 case NL80211_AUTHTYPE_OPEN_SYSTEM:
146 ar->dot11_auth_mode = OPEN_AUTH;
147 break;
148 case NL80211_AUTHTYPE_SHARED_KEY:
149 ar->dot11_auth_mode = SHARED_AUTH;
150 break;
151 case NL80211_AUTHTYPE_NETWORK_EAP:
152 ar->dot11_auth_mode = LEAP_AUTH;
153 break;
154
155 case NL80211_AUTHTYPE_AUTOMATIC:
156 ar->dot11_auth_mode = OPEN_AUTH;
157 ar->auto_auth_stage = AUTH_OPEN_IN_PROGRESS;
158 break;
159
160 default:
161 ath6kl_err("%s: 0x%x not spported\n", __func__, auth_type);
162 return -ENOTSUPP;
163 }
164
165 return 0;
166}
167
168static int ath6kl_set_cipher(struct ath6kl *ar, u32 cipher, bool ucast)
169{
170 u8 *ar_cipher = ucast ? &ar->prwise_crypto : &ar->grp_crypto;
171 u8 *ar_cipher_len = ucast ? &ar->prwise_crypto_len : &ar->grp_crpto_len;
172
173 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n",
174 __func__, cipher, ucast);
175
176 switch (cipher) {
177 case 0:
178 /* our own hack to use value 0 as no crypto used */
179 *ar_cipher = NONE_CRYPT;
180 *ar_cipher_len = 0;
181 break;
182 case WLAN_CIPHER_SUITE_WEP40:
183 *ar_cipher = WEP_CRYPT;
184 *ar_cipher_len = 5;
185 break;
186 case WLAN_CIPHER_SUITE_WEP104:
187 *ar_cipher = WEP_CRYPT;
188 *ar_cipher_len = 13;
189 break;
190 case WLAN_CIPHER_SUITE_TKIP:
191 *ar_cipher = TKIP_CRYPT;
192 *ar_cipher_len = 0;
193 break;
194 case WLAN_CIPHER_SUITE_CCMP:
195 *ar_cipher = AES_CRYPT;
196 *ar_cipher_len = 0;
197 break;
198 default:
199 ath6kl_err("cipher 0x%x not supported\n", cipher);
200 return -ENOTSUPP;
201 }
202
203 return 0;
204}
205
206static void ath6kl_set_key_mgmt(struct ath6kl *ar, u32 key_mgmt)
207{
208 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt);
209
210 if (key_mgmt == WLAN_AKM_SUITE_PSK) {
211 if (ar->auth_mode == WPA_AUTH)
212 ar->auth_mode = WPA_PSK_AUTH;
213 else if (ar->auth_mode == WPA2_AUTH)
214 ar->auth_mode = WPA2_PSK_AUTH;
215 } else if (key_mgmt != WLAN_AKM_SUITE_8021X) {
216 ar->auth_mode = NONE_AUTH;
217 }
218}
219
220static bool ath6kl_cfg80211_ready(struct ath6kl *ar)
221{
222 if (!test_bit(WMI_READY, &ar->flag)) {
223 ath6kl_err("wmi is not ready\n");
224 return false;
225 }
226
575b5f34 227 if (!test_bit(WLAN_ENABLED, &ar->flag)) {
bdcd8170
KV		 228 ath6kl_err("wlan disabled\n");
229 return false;
230 }
231
232 return true;
233}
234
235static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
236 struct cfg80211_connect_params *sme)
237{
238 struct ath6kl *ar = ath6kl_priv(dev);
239 int status;
240
241 ar->sme_state = SME_CONNECTING;
242
243 if (!ath6kl_cfg80211_ready(ar))
244 return -EIO;
245
246 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
247 ath6kl_err("destroy in progress\n");
248 return -EBUSY;
249 }
250
251 if (test_bit(SKIP_SCAN, &ar->flag) &&
252 ((sme->channel && sme->channel->center_freq == 0) ||
253 (sme->bssid && is_zero_ether_addr(sme->bssid)))) {
254 ath6kl_err("SkipScan: channel or bssid invalid\n");
255 return -EINVAL;
256 }
257
258 if (down_interruptible(&ar->sem)) {
259 ath6kl_err("busy, couldn't get access\n");
260 return -ERESTARTSYS;
261 }
262
263 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
264 ath6kl_err("busy, destroy in progress\n");
265 up(&ar->sem);
266 return -EBUSY;
267 }
268
269 if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) {
270 /*
271 * sleep until the command queue drains
272 */
273 wait_event_interruptible_timeout(ar->event_wq,
274 ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0,
275 WMI_TIMEOUT);
276 if (signal_pending(current)) {
277 ath6kl_err("cmd queue drain timeout\n");
278 up(&ar->sem);
279 return -EINTR;
280 }
281 }
282
283 if (test_bit(CONNECTED, &ar->flag) &&
284 ar->ssid_len == sme->ssid_len &&
285 !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) {
286 ar->reconnect_flag = true;
287 status = ath6kl_wmi_reconnect_cmd(ar->wmi, ar->req_bssid,
288 ar->ch_hint);
289
290 up(&ar->sem);
291 if (status) {
292 ath6kl_err("wmi_reconnect_cmd failed\n");
293 return -EIO;
294 }
295 return 0;
296 } else if (ar->ssid_len == sme->ssid_len &&
297 !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) {
298 ath6kl_disconnect(ar);
299 }
300
301 memset(ar->ssid, 0, sizeof(ar->ssid));
302 ar->ssid_len = sme->ssid_len;
303 memcpy(ar->ssid, sme->ssid, sme->ssid_len);
304
305 if (sme->channel)
306 ar->ch_hint = sme->channel->center_freq;
307
308 memset(ar->req_bssid, 0, sizeof(ar->req_bssid));
309 if (sme->bssid && !is_broadcast_ether_addr(sme->bssid))
310 memcpy(ar->req_bssid, sme->bssid, sizeof(ar->req_bssid));
311
312 ath6kl_set_wpa_version(ar, sme->crypto.wpa_versions);
313
314 status = ath6kl_set_auth_type(ar, sme->auth_type);
315 if (status) {
316 up(&ar->sem);
317 return status;
318 }
319
320 if (sme->crypto.n_ciphers_pairwise)
321 ath6kl_set_cipher(ar, sme->crypto.ciphers_pairwise[0], true);
322 else
323 ath6kl_set_cipher(ar, 0, true);
324
325 ath6kl_set_cipher(ar, sme->crypto.cipher_group, false);
326
327 if (sme->crypto.n_akm_suites)
328 ath6kl_set_key_mgmt(ar, sme->crypto.akm_suites[0]);
329
330 if ((sme->key_len) &&
331 (ar->auth_mode == NONE_AUTH) && (ar->prwise_crypto == WEP_CRYPT)) {
332 struct ath6kl_key *key = NULL;
333
334 if (sme->key_idx < WMI_MIN_KEY_INDEX ||
335 sme->key_idx > WMI_MAX_KEY_INDEX) {
336 ath6kl_err("key index %d out of bounds\n",
337 sme->key_idx);
338 up(&ar->sem);
339 return -ENOENT;
340 }
341
342 key = &ar->keys[sme->key_idx];
343 key->key_len = sme->key_len;
344 memcpy(key->key, sme->key, key->key_len);
345 key->cipher = ar->prwise_crypto;
346 ar->def_txkey_index = sme->key_idx;
347
348 ath6kl_wmi_addkey_cmd(ar->wmi, sme->key_idx,
349 ar->prwise_crypto,
350 GROUP_USAGE | TX_USAGE,
351 key->key_len,
352 NULL,
353 key->key, KEY_OP_INIT_VAL, NULL,
354 NO_SYNC_WMIFLAG);
355 }
356
357 if (!ar->usr_bss_filter) {
358 if (ath6kl_wmi_bssfilter_cmd(ar->wmi, ALL_BSS_FILTER, 0) != 0) {
359 ath6kl_err("couldn't set bss filtering\n");
360 up(&ar->sem);
361 return -EIO;
362 }
363 }
364
365 ar->nw_type = ar->next_mode;
366
367 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
368 "%s: connect called with authmode %d dot11 auth %d"
369 " PW crypto %d PW crypto len %d GRP crypto %d"
370 " GRP crypto len %d channel hint %u\n",
371 __func__,
372 ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto,
373 ar->prwise_crypto_len, ar->grp_crypto,
374 ar->grp_crpto_len, ar->ch_hint);
375
376 ar->reconnect_flag = 0;
377 status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type,
378 ar->dot11_auth_mode, ar->auth_mode,
379 ar->prwise_crypto,
380 ar->prwise_crypto_len,
381 ar->grp_crypto, ar->grp_crpto_len,
382 ar->ssid_len, ar->ssid,
383 ar->req_bssid, ar->ch_hint,
384 ar->connect_ctrl_flags);
385
386 up(&ar->sem);
387
388 if (status == -EINVAL) {
389 memset(ar->ssid, 0, sizeof(ar->ssid));
390 ar->ssid_len = 0;
391 ath6kl_err("invalid request\n");
392 return -ENOENT;
393 } else if (status) {
394 ath6kl_err("ath6kl_wmi_connect_cmd failed\n");
395 return -EIO;
396 }
397
398 if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) &&
399 ((ar->auth_mode == WPA_PSK_AUTH)
400 || (ar->auth_mode == WPA2_PSK_AUTH))) {
401 mod_timer(&ar->disconnect_timer,
402 jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL));
403 }
404
405 ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD;
406 set_bit(CONNECT_PEND, &ar->flag);
407
408 return 0;
409}
410
411void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel,
412 u8 *bssid, u16 listen_intvl,
413 u16 beacon_intvl,
414 enum network_type nw_type,
415 u8 beacon_ie_len, u8 assoc_req_len,
416 u8 assoc_resp_len, u8 *assoc_info)
417{
418 u16 size = 0;
419 u16 capability = 0;
420 struct cfg80211_bss *bss = NULL;
421 struct ieee80211_mgmt *mgmt = NULL;
422 struct ieee80211_channel *ibss_ch = NULL;
423 s32 signal = 50 * 100;
424 u8 ie_buf_len = 0;
425 unsigned char ie_buf[256];
426 unsigned char *ptr_ie_buf = ie_buf;
427 unsigned char *ieeemgmtbuf = NULL;
428 u8 source_mac[ETH_ALEN];
bdcd8170
KV		 429
430 /* capinfo + listen interval */
431 u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16);
432
433 /* capinfo + status code + associd */
434 u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16);
435
436 u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset;
437 u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len +
438 assoc_resp_ie_offset;
439
440 assoc_req_len -= assoc_req_ie_offset;
441 assoc_resp_len -= assoc_resp_ie_offset;
442
443 ar->auto_auth_stage = AUTH_IDLE;
444
445 if (nw_type & ADHOC_NETWORK) {
446 if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) {
447 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
448 "%s: ath6k not in ibss mode\n", __func__);
449 return;
450 }
451 }
452
453 if (nw_type & INFRA_NETWORK) {
454 if (ar->wdev->iftype != NL80211_IFTYPE_STATION) {
455 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
456 "%s: ath6k not in station mode\n", __func__);
457 return;
458 }
459 }
460
bdcd8170
KV		 461 /*
462 * Earlier we were updating the cfg about bss by making a beacon frame
463 * only if the entry for bss is not there. This can have some issue if
464 * ROAM event is generated and a heavy traffic is ongoing. The ROAM
465 * event is handled through a work queue and by the time it really gets
466 * handled, BSS would have been aged out. So it is better to update the
467 * cfg about BSS irrespective of its entry being present right now or
468 * not.
469 */
470
471 if (nw_type & ADHOC_NETWORK) {
472 /* construct 802.11 mgmt beacon */
473 if (ptr_ie_buf) {
474 *ptr_ie_buf++ = WLAN_EID_SSID;
475 *ptr_ie_buf++ = ar->ssid_len;
476 memcpy(ptr_ie_buf, ar->ssid, ar->ssid_len);
477 ptr_ie_buf += ar->ssid_len;
478
479 *ptr_ie_buf++ = WLAN_EID_IBSS_PARAMS;
480 *ptr_ie_buf++ = 2; /* length */
481 *ptr_ie_buf++ = 0; /* ATIM window */
482 *ptr_ie_buf++ = 0; /* ATIM window */
483
484 /* TODO: update ibss params and include supported rates,
485 * DS param set, extened support rates, wmm. */
486
487 ie_buf_len = ptr_ie_buf - ie_buf;
488 }
489
490 capability |= WLAN_CAPABILITY_IBSS;
491
492 if (ar->prwise_crypto == WEP_CRYPT)
493 capability |= WLAN_CAPABILITY_PRIVACY;
494
495 memcpy(source_mac, ar->net_dev->dev_addr, ETH_ALEN);
496 ptr_ie_buf = ie_buf;
497 } else {
498 capability = *(u16 *) (&assoc_info[beacon_ie_len]);
499 memcpy(source_mac, bssid, ETH_ALEN);
500 ptr_ie_buf = assoc_req_ie;
501 ie_buf_len = assoc_req_len;
502 }
503
504 size = offsetof(struct ieee80211_mgmt, u)
505 + sizeof(mgmt->u.beacon)
506 + ie_buf_len;
507
508 ieeemgmtbuf = kzalloc(size, GFP_ATOMIC);
509 if (!ieeemgmtbuf) {
510 ath6kl_err("ieee mgmt buf alloc error\n");
bdcd8170
KV		 511 return;
512 }
513
514 mgmt = (struct ieee80211_mgmt *)ieeemgmtbuf;
515 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
516 IEEE80211_STYPE_BEACON);
517 memset(mgmt->da, 0xff, ETH_ALEN); /* broadcast addr */
518 memcpy(mgmt->sa, source_mac, ETH_ALEN);
519 memcpy(mgmt->bssid, bssid, ETH_ALEN);
520 mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_intvl);
521 mgmt->u.beacon.capab_info = cpu_to_le16(capability);
522 memcpy(mgmt->u.beacon.variable, ptr_ie_buf, ie_buf_len);
523
524 ibss_ch = ieee80211_get_channel(ar->wdev->wiphy, (int)channel);
525
526 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
527 "%s: inform bss with bssid %pM channel %d beacon_intvl %d capability 0x%x\n",
528 __func__, mgmt->bssid, ibss_ch->hw_value,
529 beacon_intvl, capability);
530
531 bss = cfg80211_inform_bss_frame(ar->wdev->wiphy,
532 ibss_ch, mgmt,
533 size, signal, GFP_KERNEL);
534 kfree(ieeemgmtbuf);
535 cfg80211_put_bss(bss);
536
537 if (nw_type & ADHOC_NETWORK) {
538 cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL);
539 return;
540 }
541
9aa60357 542 if (ar->sme_state == SME_CONNECTING) {
bdcd8170 543 /* inform connect result to cfg80211 */
9aa60357 544 ar->sme_state = SME_CONNECTED;
bdcd8170
KV		 545 cfg80211_connect_result(ar->net_dev, bssid,
546 assoc_req_ie, assoc_req_len,
547 assoc_resp_ie, assoc_resp_len,
548 WLAN_STATUS_SUCCESS, GFP_KERNEL);
9aa60357 549 } else if (ar->sme_state == SME_CONNECTED) {
bdcd8170
KV		 550 /* inform roam event to cfg80211 */
551 cfg80211_roamed(ar->net_dev, ibss_ch, bssid,
552 assoc_req_ie, assoc_req_len,
553 assoc_resp_ie, assoc_resp_len, GFP_KERNEL);
554 }
555}
556
557static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy,
558 struct net_device *dev, u16 reason_code)
559{
560 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev);
561
562 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__,
563 reason_code);
564
565 if (!ath6kl_cfg80211_ready(ar))
566 return -EIO;
567
568 if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) {
569 ath6kl_err("busy, destroy in progress\n");
570 return -EBUSY;
571 }
572
573 if (down_interruptible(&ar->sem)) {
574 ath6kl_err("busy, couldn't get access\n");
575 return -ERESTARTSYS;
576 }
577
578 ar->reconnect_flag = 0;
579 ath6kl_disconnect(ar);
580 memset(ar->ssid, 0, sizeof(ar->ssid));
581 ar->ssid_len = 0;
582
583 if (!test_bit(SKIP_SCAN, &ar->flag))
584 memset(ar->req_bssid, 0, sizeof(ar->req_bssid));
585
586 up(&ar->sem);
587
588 return 0;
589}
590
591void ath6kl_cfg80211_disconnect_event(struct ath6kl *ar, u8 reason,
592 u8 *bssid, u8 assoc_resp_len,
593 u8 *assoc_info, u16 proto_reason)
594{
595 struct ath6kl_key *key = NULL;
596 u16 status;
597
598 if (ar->scan_req) {
599 cfg80211_scan_done(ar->scan_req, true);
600 ar->scan_req = NULL;
601 }
602
603 if (ar->nw_type & ADHOC_NETWORK) {
604 if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) {
605 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
606 "%s: ath6k not in ibss mode\n", __func__);
607 return;
608 }
609 memset(bssid, 0, ETH_ALEN);
610 cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL);
611 return;
612 }
613
614 if (ar->nw_type & INFRA_NETWORK) {
615 if (ar->wdev->iftype != NL80211_IFTYPE_STATION) {
616 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
617 "%s: ath6k not in station mode\n", __func__);
618 return;
619 }
620 }
621
622 if (!test_bit(CONNECT_PEND, &ar->flag)) {
623 if (reason != DISCONNECT_CMD)
624 ath6kl_wmi_disconnect_cmd(ar->wmi);
625
626 return;
627 }
628
629 if (reason == NO_NETWORK_AVAIL) {
630 /* connect cmd failed */
631 ath6kl_wmi_disconnect_cmd(ar->wmi);
632 return;
633 }
634
635 if (reason != DISCONNECT_CMD)
636 return;
637
638 if (!ar->auto_auth_stage) {
639 clear_bit(CONNECT_PEND, &ar->flag);
640
641 if (ar->sme_state == SME_CONNECTING) {
642 cfg80211_connect_result(ar->net_dev,
643 bssid, NULL, 0,
644 NULL, 0,
645 WLAN_STATUS_UNSPECIFIED_FAILURE,
646 GFP_KERNEL);
0e5cc8e6 647 } else if (ar->sme_state == SME_CONNECTED) {
bdcd8170
KV		 648 cfg80211_disconnected(ar->net_dev, reason,
649 NULL, 0, GFP_KERNEL);
650 }
651
652 ar->sme_state = SME_DISCONNECTED;
653 return;
654 }
655
656 if (ar->dot11_auth_mode != OPEN_AUTH)
657 return;
658
659 /*
660 * If the current auth algorithm is open, try shared and
661 * make autoAuthStage idle. We do not make it leap for now
662 * being.
663 */
664 key = &ar->keys[ar->def_txkey_index];
665 if (down_interruptible(&ar->sem)) {
666 ath6kl_err("busy, couldn't get access\n");
667 return;
668 }
669
670 ar->dot11_auth_mode = SHARED_AUTH;
671 ar->auto_auth_stage = AUTH_IDLE;
672
673 ath6kl_wmi_addkey_cmd(ar->wmi,
674 ar->def_txkey_index,
675 ar->prwise_crypto,
676 GROUP_USAGE | TX_USAGE,
677 key->key_len, NULL,
678 key->key,
679 KEY_OP_INIT_VAL, NULL,
680 NO_SYNC_WMIFLAG);
681
682 status = ath6kl_wmi_connect_cmd(ar->wmi,
683 ar->nw_type,
684 ar->dot11_auth_mode,
685 ar->auth_mode,
686 ar->prwise_crypto,
687 ar->prwise_crypto_len,
688 ar->grp_crypto,
689 ar->grp_crpto_len,
690 ar->ssid_len,
691 ar->ssid,
692 ar->req_bssid,
693 ar->ch_hint,
694 ar->connect_ctrl_flags);
695 up(&ar->sem);
696}
697
698static inline bool is_ch_11a(u16 ch)
699{
700 return (!((ch >= 2412) && (ch <= 2484)));
701}
702
cf104c2a 703/* struct ath6kl_node_table::nt_nodelock is locked when calling this */
91db35da 704void ath6kl_cfg80211_scan_node(struct wiphy *wiphy, struct bss *ni)
bdcd8170 705{
bdcd8170
KV		 706 struct ieee80211_mgmt *mgmt;
707 struct ieee80211_channel *channel;
708 struct ieee80211_supported_band *band;
709 struct ath6kl_common_ie *cie;
710 s32 signal;
711 int freq;
712
713 cie = &ni->ni_cie;
714
715 if (is_ch_11a(cie->ie_chan))
716 band = wiphy->bands[IEEE80211_BAND_5GHZ]; /* 11a */
717 else if ((cie->ie_erp) || (cie->ie_xrates))
718 band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11g */
719 else
720 band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11b */
721
bdcd8170
KV		 722 freq = cie->ie_chan;
723 channel = ieee80211_get_channel(wiphy, freq);
724 signal = ni->ni_snr * 100;
725
726 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
727 "%s: bssid %pM ch %d freq %d size %d\n", __func__,
0ce77920
JM		 728 ni->ni_macaddr, channel->hw_value, freq, ni->ni_framelen);
729 /*
730 * Both Beacon and Probe Response frames have same payload structure,
731 * so it is fine to share the parser for both.
732 */
733 if (ni->ni_framelen < 8 + 2 + 2)
734 return;
735 mgmt = (struct ieee80211_mgmt *) (ni->ni_buf -
736 offsetof(struct ieee80211_mgmt, u));
737 cfg80211_inform_bss(wiphy, channel, ni->ni_macaddr,
738 le64_to_cpu(mgmt->u.beacon.timestamp),
739 le16_to_cpu(mgmt->u.beacon.capab_info),
740 le16_to_cpu(mgmt->u.beacon.beacon_int),
741 mgmt->u.beacon.variable,
742 ni->ni_buf + ni->ni_framelen -
743 mgmt->u.beacon.variable,
744 signal, GFP_ATOMIC);
bdcd8170
KV		 745}
746
747static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
748 struct cfg80211_scan_request *request)
749{
750 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
751 int ret = 0;
bdcd8170
KV		 752
753 if (!ath6kl_cfg80211_ready(ar))
754 return -EIO;
755
756 if (!ar->usr_bss_filter) {
757 if (ath6kl_wmi_bssfilter_cmd(ar->wmi,
758 (test_bit(CONNECTED, &ar->flag) ?
759 ALL_BUT_BSS_FILTER :
760 ALL_BSS_FILTER), 0) != 0) {
761 ath6kl_err("couldn't set bss filtering\n");
762 return -EIO;
763 }
764 }
765
766 if (request->n_ssids && request->ssids[0].ssid_len) {
767 u8 i;
768
769 if (request->n_ssids > (MAX_PROBED_SSID_INDEX - 1))
770 request->n_ssids = MAX_PROBED_SSID_INDEX - 1;
771
772 for (i = 0; i < request->n_ssids; i++)
773 ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1,
774 SPECIFIC_SSID_FLAG,
775 request->ssids[i].ssid_len,
776 request->ssids[i].ssid);
777 }
778
b2c76bbe 779 if (ath6kl_wmi_startscan_cmd(ar->wmi, WMI_LONG_SCAN, 0,
bdcd8170
KV		 780 false, 0, 0, 0, NULL) != 0) {
781 ath6kl_err("wmi_startscan_cmd failed\n");
782 ret = -EIO;
783 }
784
785 ar->scan_req = request;
786
787 return ret;
788}
789
790void ath6kl_cfg80211_scan_complete_event(struct ath6kl *ar, int status)
791{
6fd1eace 792 int i;
bdcd8170
KV		 793
794 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status %d\n", __func__, status);
795
6fd1eace
KV		 796 if (!ar->scan_req)
797 return;
798
799 if ((status == -ECANCELED) || (status == -EBUSY)) {
800 cfg80211_scan_done(ar->scan_req, true);
801 goto out;
802 }
803
804 /* Translate data to cfg80211 mgmt format */
8a8bc5a4 805 wlan_iterate_nodes(&ar->scan_table, ar->wdev->wiphy);
6fd1eace
KV		 806
807 cfg80211_scan_done(ar->scan_req, false);
808
809 if (ar->scan_req->n_ssids && ar->scan_req->ssids[0].ssid_len) {
810 for (i = 0; i < ar->scan_req->n_ssids; i++) {
811 ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1,
812 DISABLE_SSID_FLAG,
813 0, NULL);
bdcd8170 814 }
bdcd8170 815 }
6fd1eace
KV		 816
817out:
818 ar->scan_req = NULL;
bdcd8170
KV		 819}
820
821static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
822 u8 key_index, bool pairwise,
823 const u8 *mac_addr,
824 struct key_params *params)
825{
826 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
827 struct ath6kl_key *key = NULL;
828 u8 key_usage;
829 u8 key_type;
830 int status = 0;
831
832 if (!ath6kl_cfg80211_ready(ar))
833 return -EIO;
834
835 if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {
836 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
837 "%s: key index %d out of bounds\n", __func__,
838 key_index);
839 return -ENOENT;
840 }
841
842 key = &ar->keys[key_index];
843 memset(key, 0, sizeof(struct ath6kl_key));
844
845 if (pairwise)
846 key_usage = PAIRWISE_USAGE;
847 else
848 key_usage = GROUP_USAGE;
849
850 if (params) {
851 if (params->key_len > WLAN_MAX_KEY_LEN ||
852 params->seq_len > sizeof(key->seq))
853 return -EINVAL;
854
855 key->key_len = params->key_len;
856 memcpy(key->key, params->key, key->key_len);
857 key->seq_len = params->seq_len;
858 memcpy(key->seq, params->seq, key->seq_len);
859 key->cipher = params->cipher;
860 }
861
862 switch (key->cipher) {
863 case WLAN_CIPHER_SUITE_WEP40:
864 case WLAN_CIPHER_SUITE_WEP104:
865 key_type = WEP_CRYPT;
866 break;
867
868 case WLAN_CIPHER_SUITE_TKIP:
869 key_type = TKIP_CRYPT;
870 break;
871
872 case WLAN_CIPHER_SUITE_CCMP:
873 key_type = AES_CRYPT;
874 break;
875
876 default:
877 return -ENOTSUPP;
878 }
879
880 if (((ar->auth_mode == WPA_PSK_AUTH)
881 || (ar->auth_mode == WPA2_PSK_AUTH))
882 && (key_usage & GROUP_USAGE))
883 del_timer(&ar->disconnect_timer);
884
885 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
886 "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n",
887 __func__, key_index, key->key_len, key_type,
888 key_usage, key->seq_len);
889
890 ar->def_txkey_index = key_index;
891 status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index,
892 key_type, key_usage, key->key_len,
893 key->seq, key->key, KEY_OP_INIT_VAL,
894 (u8 *) mac_addr, SYNC_BOTH_WMIFLAG);
895
896 if (status)
897 return -EIO;
898
899 return 0;
900}
901
902static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev,
903 u8 key_index, bool pairwise,
904 const u8 *mac_addr)
905{
906 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
907
908 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
909
910 if (!ath6kl_cfg80211_ready(ar))
911 return -EIO;
912
913 if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {
914 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
915 "%s: key index %d out of bounds\n", __func__,
916 key_index);
917 return -ENOENT;
918 }
919
920 if (!ar->keys[key_index].key_len) {
921 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
922 "%s: index %d is empty\n", __func__, key_index);
923 return 0;
924 }
925
926 ar->keys[key_index].key_len = 0;
927
928 return ath6kl_wmi_deletekey_cmd(ar->wmi, key_index);
929}
930
931static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev,
932 u8 key_index, bool pairwise,
933 const u8 *mac_addr, void *cookie,
934 void (*callback) (void *cookie,
935 struct key_params *))
936{
937 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
938 struct ath6kl_key *key = NULL;
939 struct key_params params;
940
941 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
942
943 if (!ath6kl_cfg80211_ready(ar))
944 return -EIO;
945
946 if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {
947 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
948 "%s: key index %d out of bounds\n", __func__,
949 key_index);
950 return -ENOENT;
951 }
952
953 key = &ar->keys[key_index];
954 memset(&params, 0, sizeof(params));
955 params.cipher = key->cipher;
956 params.key_len = key->key_len;
957 params.seq_len = key->seq_len;
958 params.seq = key->seq;
959 params.key = key->key;
960
961 callback(cookie, &params);
962
963 return key->key_len ? 0 : -ENOENT;
964}
965
966static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy,
967 struct net_device *ndev,
968 u8 key_index, bool unicast,
969 bool multicast)
970{
971 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev);
972 struct ath6kl_key *key = NULL;
973 int status = 0;
974 u8 key_usage;
975
976 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index);
977
978 if (!ath6kl_cfg80211_ready(ar))
979 return -EIO;
980
981 if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) {
982 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
983 "%s: key index %d out of bounds\n",
984 __func__, key_index);
985 return -ENOENT;
986 }
987
988 if (!ar->keys[key_index].key_len) {
989 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n",
990 __func__, key_index);
991 return -EINVAL;
992 }
993
994 ar->def_txkey_index = key_index;
995 key = &ar->keys[ar->def_txkey_index];
996 key_usage = GROUP_USAGE;
997 if (ar->prwise_crypto == WEP_CRYPT)
998 key_usage |= TX_USAGE;
999
1000 status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index,
1001 ar->prwise_crypto, key_usage,
1002 key->key_len, key->seq, key->key,
1003 KEY_OP_INIT_VAL, NULL,
1004 SYNC_BOTH_WMIFLAG);
1005 if (status)
1006 return -EIO;
1007
1008 return 0;
1009}
1010
1011void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl *ar, u8 keyid,
1012 bool ismcast)
1013{
1014 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1015 "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast);
1016
1017 cfg80211_michael_mic_failure(ar->net_dev, ar->bssid,
1018 (ismcast ? NL80211_KEYTYPE_GROUP :
1019 NL80211_KEYTYPE_PAIRWISE), keyid, NULL,
1020 GFP_KERNEL);
1021}
1022
1023static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1024{
1025 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1026 int ret;
1027
1028 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__,
1029 changed);
1030
1031 if (!ath6kl_cfg80211_ready(ar))
1032 return -EIO;
1033
1034 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1035 ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold);
1036 if (ret != 0) {
1037 ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n");
1038 return -EIO;
1039 }
1040 }
1041
1042 return 0;
1043}
1044
1045/*
1046 * The type nl80211_tx_power_setting replaces the following
1047 * data type from 2.6.36 onwards
1048*/
1049static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy,
1050 enum nl80211_tx_power_setting type,
1051 int dbm)
1052{
1053 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1054 u8 ath6kl_dbm;
1055
1056 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__,
1057 type, dbm);
1058
1059 if (!ath6kl_cfg80211_ready(ar))
1060 return -EIO;
1061
1062 switch (type) {
1063 case NL80211_TX_POWER_AUTOMATIC:
1064 return 0;
1065 case NL80211_TX_POWER_LIMITED:
1066 ar->tx_pwr = ath6kl_dbm = dbm;
1067 break;
1068 default:
1069 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n",
1070 __func__, type);
1071 return -EOPNOTSUPP;
1072 }
1073
1074 ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, ath6kl_dbm);
1075
1076 return 0;
1077}
1078
1079static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm)
1080{
1081 struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy);
1082
1083 if (!ath6kl_cfg80211_ready(ar))
1084 return -EIO;
1085
1086 if (test_bit(CONNECTED, &ar->flag)) {
1087 ar->tx_pwr = 0;
1088
1089 if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi) != 0) {
1090 ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n");
1091 return -EIO;
1092 }
1093
1094 wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0,
1095 5 * HZ);
1096
1097 if (signal_pending(current)) {
1098 ath6kl_err("target did not respond\n");
1099 return -EINTR;
1100 }
1101 }
1102
1103 *dbm = ar->tx_pwr;
1104 return 0;
1105}
1106
1107static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy,
1108 struct net_device *dev,
1109 bool pmgmt, int timeout)
1110{
1111 struct ath6kl *ar = ath6kl_priv(dev);
1112 struct wmi_power_mode_cmd mode;
1113
1114 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n",
1115 __func__, pmgmt, timeout);
1116
1117 if (!ath6kl_cfg80211_ready(ar))
1118 return -EIO;
1119
1120 if (pmgmt) {
1121 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__);
1122 mode.pwr_mode = REC_POWER;
1123 } else {
1124 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__);
1125 mode.pwr_mode = MAX_PERF_POWER;
1126 }
1127
1128 if (ath6kl_wmi_powermode_cmd(ar->wmi, mode.pwr_mode) != 0) {
1129 ath6kl_err("wmi_powermode_cmd failed\n");
1130 return -EIO;
1131 }
1132
1133 return 0;
1134}
1135
1136static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy,
1137 struct net_device *ndev,
1138 enum nl80211_iftype type, u32 *flags,
1139 struct vif_params *params)
1140{
1141 struct ath6kl *ar = ath6kl_priv(ndev);
1142 struct wireless_dev *wdev = ar->wdev;
1143
1144 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type);
1145
1146 if (!ath6kl_cfg80211_ready(ar))
1147 return -EIO;
1148
1149 switch (type) {
1150 case NL80211_IFTYPE_STATION:
1151 ar->next_mode = INFRA_NETWORK;
1152 break;
1153 case NL80211_IFTYPE_ADHOC:
1154 ar->next_mode = ADHOC_NETWORK;
1155 break;
1156 default:
1157 ath6kl_err("invalid interface type %u\n", type);
1158 return -EOPNOTSUPP;
1159 }
1160
1161 wdev->iftype = type;
1162
1163 return 0;
1164}
1165
1166static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy,
1167 struct net_device *dev,
1168 struct cfg80211_ibss_params *ibss_param)
1169{
1170 struct ath6kl *ar = ath6kl_priv(dev);
1171 int status;
1172
1173 if (!ath6kl_cfg80211_ready(ar))
1174 return -EIO;
1175
1176 ar->ssid_len = ibss_param->ssid_len;
1177 memcpy(ar->ssid, ibss_param->ssid, ar->ssid_len);
1178
1179 if (ibss_param->channel)
1180 ar->ch_hint = ibss_param->channel->center_freq;
1181
1182 if (ibss_param->channel_fixed) {
1183 /*
1184 * TODO: channel_fixed: The channel should be fixed, do not
1185 * search for IBSSs to join on other channels. Target
1186 * firmware does not support this feature, needs to be
1187 * updated.
1188 */
1189 return -EOPNOTSUPP;
1190 }
1191
1192 memset(ar->req_bssid, 0, sizeof(ar->req_bssid));
1193 if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid))
1194 memcpy(ar->req_bssid, ibss_param->bssid, sizeof(ar->req_bssid));
1195
1196 ath6kl_set_wpa_version(ar, 0);
1197
1198 status = ath6kl_set_auth_type(ar, NL80211_AUTHTYPE_OPEN_SYSTEM);
1199 if (status)
1200 return status;
1201
1202 if (ibss_param->privacy) {
1203 ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, true);
1204 ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, false);
1205 } else {
1206 ath6kl_set_cipher(ar, 0, true);
1207 ath6kl_set_cipher(ar, 0, false);
1208 }
1209
1210 ar->nw_type = ar->next_mode;
1211
1212 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
1213 "%s: connect called with authmode %d dot11 auth %d"
1214 " PW crypto %d PW crypto len %d GRP crypto %d"
1215 " GRP crypto len %d channel hint %u\n",
1216 __func__,
1217 ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto,
1218 ar->prwise_crypto_len, ar->grp_crypto,
1219 ar->grp_crpto_len, ar->ch_hint);
1220
1221 status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type,
1222 ar->dot11_auth_mode, ar->auth_mode,
1223 ar->prwise_crypto,
1224 ar->prwise_crypto_len,
1225 ar->grp_crypto, ar->grp_crpto_len,
1226 ar->ssid_len, ar->ssid,
1227 ar->req_bssid, ar->ch_hint,
1228 ar->connect_ctrl_flags);
1229 set_bit(CONNECT_PEND, &ar->flag);
1230
1231 return 0;
1232}
1233
1234static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy,
1235 struct net_device *dev)
1236{
1237 struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev);
1238
1239 if (!ath6kl_cfg80211_ready(ar))
1240 return -EIO;
1241
1242 ath6kl_disconnect(ar);
1243 memset(ar->ssid, 0, sizeof(ar->ssid));
1244 ar->ssid_len = 0;
1245
1246 return 0;
1247}
1248
1249static const u32 cipher_suites[] = {
1250 WLAN_CIPHER_SUITE_WEP40,
1251 WLAN_CIPHER_SUITE_WEP104,
1252 WLAN_CIPHER_SUITE_TKIP,
1253 WLAN_CIPHER_SUITE_CCMP,
1254};
1255
1256static bool is_rate_legacy(s32 rate)
1257{
1258 static const s32 legacy[] = { 1000, 2000, 5500, 11000,
1259 6000, 9000, 12000, 18000, 24000,
1260 36000, 48000, 54000
1261 };
1262 u8 i;
1263
1264 for (i = 0; i < ARRAY_SIZE(legacy); i++)
1265 if (rate == legacy[i])
1266 return true;
1267
1268 return false;
1269}
1270
1271static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi)
1272{
1273 static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000,
1274 52000, 58500, 65000, 72200
1275 };
1276 u8 i;
1277
1278 for (i = 0; i < ARRAY_SIZE(ht20); i++) {
1279 if (rate == ht20[i]) {
1280 if (i == ARRAY_SIZE(ht20) - 1)
1281 /* last rate uses sgi */
1282 *sgi = true;
1283 else
1284 *sgi = false;
1285
1286 *mcs = i;
1287 return true;
1288 }
1289 }
1290 return false;
1291}
1292
1293static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi)
1294{
1295 static const s32 ht40[] = { 13500, 27000, 40500, 54000,
1296 81000, 108000, 121500, 135000,
1297 150000
1298 };
1299 u8 i;
1300
1301 for (i = 0; i < ARRAY_SIZE(ht40); i++) {
1302 if (rate == ht40[i]) {
1303 if (i == ARRAY_SIZE(ht40) - 1)
1304 /* last rate uses sgi */
1305 *sgi = true;
1306 else
1307 *sgi = false;
1308
1309 *mcs = i;
1310 return true;
1311 }
1312 }
1313
1314 return false;
1315}
1316
1317static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev,
1318 u8 *mac, struct station_info *sinfo)
1319{
1320 struct ath6kl *ar = ath6kl_priv(dev);
1321 long left;
1322 bool sgi;
1323 s32 rate;
1324 int ret;
1325 u8 mcs;
1326
1327 if (memcmp(mac, ar->bssid, ETH_ALEN) != 0)
1328 return -ENOENT;
1329
1330 if (down_interruptible(&ar->sem))
1331 return -EBUSY;
1332
1333 set_bit(STATS_UPDATE_PEND, &ar->flag);
1334
1335 ret = ath6kl_wmi_get_stats_cmd(ar->wmi);
1336
1337 if (ret != 0) {
1338 up(&ar->sem);
1339 return -EIO;
1340 }
1341
1342 left = wait_event_interruptible_timeout(ar->event_wq,
1343 !test_bit(STATS_UPDATE_PEND,
1344 &ar->flag),
1345 WMI_TIMEOUT);
1346
1347 up(&ar->sem);
1348
1349 if (left == 0)
1350 return -ETIMEDOUT;
1351 else if (left < 0)
1352 return left;
1353
1354 if (ar->target_stats.rx_byte) {
1355 sinfo->rx_bytes = ar->target_stats.rx_byte;
1356 sinfo->filled |= STATION_INFO_RX_BYTES;
1357 sinfo->rx_packets = ar->target_stats.rx_pkt;
1358 sinfo->filled |= STATION_INFO_RX_PACKETS;
1359 }
1360
1361 if (ar->target_stats.tx_byte) {
1362 sinfo->tx_bytes = ar->target_stats.tx_byte;
1363 sinfo->filled |= STATION_INFO_TX_BYTES;
1364 sinfo->tx_packets = ar->target_stats.tx_pkt;
1365 sinfo->filled |= STATION_INFO_TX_PACKETS;
1366 }
1367
1368 sinfo->signal = ar->target_stats.cs_rssi;
1369 sinfo->filled |= STATION_INFO_SIGNAL;
1370
1371 rate = ar->target_stats.tx_ucast_rate;
1372
1373 if (is_rate_legacy(rate)) {
1374 sinfo->txrate.legacy = rate / 100;
1375 } else if (is_rate_ht20(rate, &mcs, &sgi)) {
1376 if (sgi) {
1377 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1378 sinfo->txrate.mcs = mcs - 1;
1379 } else {
1380 sinfo->txrate.mcs = mcs;
1381 }
1382
1383 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1384 } else if (is_rate_ht40(rate, &mcs, &sgi)) {
1385 if (sgi) {
1386 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
1387 sinfo->txrate.mcs = mcs - 1;
1388 } else {
1389 sinfo->txrate.mcs = mcs;
1390 }
1391
1392 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
1393 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
1394 } else {
1395 ath6kl_warn("invalid rate: %d\n", rate);
1396 return 0;
1397 }
1398
1399 sinfo->filled |= STATION_INFO_TX_BITRATE;
1400
1401 return 0;
1402}
1403
1404static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1405 struct cfg80211_pmksa *pmksa)
1406{
1407 struct ath6kl *ar = ath6kl_priv(netdev);
1408 return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid,
1409 pmksa->pmkid, true);
1410}
1411
1412static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev,
1413 struct cfg80211_pmksa *pmksa)
1414{
1415 struct ath6kl *ar = ath6kl_priv(netdev);
1416 return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid,
1417 pmksa->pmkid, false);
1418}
1419
1420static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev)
1421{
1422 struct ath6kl *ar = ath6kl_priv(netdev);
1423 if (test_bit(CONNECTED, &ar->flag))
1424 return ath6kl_wmi_setpmkid_cmd(ar->wmi, ar->bssid, NULL, false);
1425 return 0;
1426}
1427
abcb344b
KV		 1428#ifdef CONFIG_PM
1429static int ar6k_cfg80211_suspend(struct wiphy *wiphy,
1430 struct cfg80211_wowlan *wow)
1431{
1432 struct ath6kl *ar = wiphy_priv(wiphy);
1433
1434 return ath6kl_hif_suspend(ar);
1435}
1436#endif
1437
bdcd8170
KV		 1438static struct cfg80211_ops ath6kl_cfg80211_ops = {
1439 .change_virtual_intf = ath6kl_cfg80211_change_iface,
1440 .scan = ath6kl_cfg80211_scan,
1441 .connect = ath6kl_cfg80211_connect,
1442 .disconnect = ath6kl_cfg80211_disconnect,
1443 .add_key = ath6kl_cfg80211_add_key,
1444 .get_key = ath6kl_cfg80211_get_key,
1445 .del_key = ath6kl_cfg80211_del_key,
1446 .set_default_key = ath6kl_cfg80211_set_default_key,
1447 .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params,
1448 .set_tx_power = ath6kl_cfg80211_set_txpower,
1449 .get_tx_power = ath6kl_cfg80211_get_txpower,
1450 .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt,
1451 .join_ibss = ath6kl_cfg80211_join_ibss,
1452 .leave_ibss = ath6kl_cfg80211_leave_ibss,
1453 .get_station = ath6kl_get_station,
1454 .set_pmksa = ath6kl_set_pmksa,
1455 .del_pmksa = ath6kl_del_pmksa,
1456 .flush_pmksa = ath6kl_flush_pmksa,
abcb344b
KV		 1457#ifdef CONFIG_PM
1458 .suspend = ar6k_cfg80211_suspend,
1459#endif
bdcd8170
KV		 1460};
1461
1462struct wireless_dev *ath6kl_cfg80211_init(struct device *dev)
1463{
1464 int ret = 0;
1465 struct wireless_dev *wdev;
1466
1467 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1468 if (!wdev) {
1469 ath6kl_err("couldn't allocate wireless device\n");
1470 return NULL;
1471 }
1472
1473 /* create a new wiphy for use with cfg80211 */
1474 wdev->wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl));
1475 if (!wdev->wiphy) {
1476 ath6kl_err("couldn't allocate wiphy device\n");
1477 kfree(wdev);
1478 return NULL;
1479 }
1480
1481 /* set device pointer for wiphy */
1482 set_wiphy_dev(wdev->wiphy, dev);
1483
1484 wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1485 BIT(NL80211_IFTYPE_ADHOC);
1486 /* max num of ssids that can be probed during scanning */
1487 wdev->wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX;
1488 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz;
1489 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz;
1490 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1491
1492 wdev->wiphy->cipher_suites = cipher_suites;
1493 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1494
1495 ret = wiphy_register(wdev->wiphy);
1496 if (ret < 0) {
1497 ath6kl_err("couldn't register wiphy device\n");
1498 wiphy_free(wdev->wiphy);
1499 kfree(wdev);
1500 return NULL;
1501 }
1502
1503 return wdev;
1504}
1505
1506void ath6kl_cfg80211_deinit(struct ath6kl *ar)
1507{
1508 struct wireless_dev *wdev = ar->wdev;
1509
1510 if (ar->scan_req) {
1511 cfg80211_scan_done(ar->scan_req, true);
1512 ar->scan_req = NULL;
1513 }
1514
1515 if (!wdev)
1516 return;
1517
1518 wiphy_unregister(wdev->wiphy);
1519 wiphy_free(wdev->wiphy);
1520 kfree(wdev);
1521}
Linux kernel - Deliverables
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