projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
mwifiex: remove helper functions for displaying 11n capabilities
[deliverable/linux.git] / drivers / net / wireless / mwifiex / cfg80211.c
CommitLineData
5e6e3a92
BZ		 1/*
2 * Marvell Wireless LAN device driver: CFG80211
3 *
4 * Copyright (C) 2011, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
18 */
19
20#include "cfg80211.h"
21#include "main.h"
22
23/*
24 * This function maps the nl802.11 channel type into driver channel type.
25 *
26 * The mapping is as follows -
27 * NL80211_CHAN_NO_HT -> NO_SEC_CHANNEL
28 * NL80211_CHAN_HT20 -> NO_SEC_CHANNEL
29 * NL80211_CHAN_HT40PLUS -> SEC_CHANNEL_ABOVE
30 * NL80211_CHAN_HT40MINUS -> SEC_CHANNEL_BELOW
31 * Others -> NO_SEC_CHANNEL
32 */
33static int
34mwifiex_cfg80211_channel_type_to_mwifiex_channels(enum nl80211_channel_type
35 channel_type)
36{
37 int channel;
38 switch (channel_type) {
39 case NL80211_CHAN_NO_HT:
40 case NL80211_CHAN_HT20:
41 channel = NO_SEC_CHANNEL;
42 break;
43 case NL80211_CHAN_HT40PLUS:
44 channel = SEC_CHANNEL_ABOVE;
45 break;
46 case NL80211_CHAN_HT40MINUS:
47 channel = SEC_CHANNEL_BELOW;
48 break;
49 default:
50 channel = NO_SEC_CHANNEL;
51 }
52 return channel;
53}
54
55/*
56 * This function maps the driver channel type into nl802.11 channel type.
57 *
58 * The mapping is as follows -
59 * NO_SEC_CHANNEL -> NL80211_CHAN_HT20
60 * SEC_CHANNEL_ABOVE -> NL80211_CHAN_HT40PLUS
61 * SEC_CHANNEL_BELOW -> NL80211_CHAN_HT40MINUS
62 * Others -> NL80211_CHAN_HT20
63 */
64static enum nl80211_channel_type
65mwifiex_channels_to_cfg80211_channel_type(int channel_type)
66{
67 int channel;
68 switch (channel_type) {
69 case NO_SEC_CHANNEL:
70 channel = NL80211_CHAN_HT20;
71 break;
72 case SEC_CHANNEL_ABOVE:
73 channel = NL80211_CHAN_HT40PLUS;
74 break;
75 case SEC_CHANNEL_BELOW:
76 channel = NL80211_CHAN_HT40MINUS;
77 break;
78 default:
79 channel = NL80211_CHAN_HT20;
80 }
81 return channel;
82}
83
84/*
85 * This function checks whether WEP is set.
86 */
87static int
88mwifiex_is_alg_wep(u32 cipher)
89{
90 int alg = 0;
91
92 switch (cipher) {
93 case MWIFIEX_ENCRYPTION_MODE_WEP40:
94 case MWIFIEX_ENCRYPTION_MODE_WEP104:
95 alg = 1;
96 break;
97 default:
98 alg = 0;
99 break;
100 }
101 return alg;
102}
103
104/*
105 * This function maps the given cipher type into driver specific type.
106 *
107 * It also sets a flag to indicate whether WPA is enabled or not.
108 *
109 * The mapping table is -
110 * Input cipher Driver cipher type WPA enabled?
111 * ------------ ------------------ ------------
112 * IW_AUTH_CIPHER_NONE MWIFIEX_ENCRYPTION_MODE_NONE No
113 * WLAN_CIPHER_SUITE_WEP40 MWIFIEX_ENCRYPTION_MODE_WEP40 No
114 * WLAN_CIPHER_SUITE_WEP104 MWIFIEX_ENCRYPTION_MODE_WEP104 No
115 * WLAN_CIPHER_SUITE_TKIP MWIFIEX_ENCRYPTION_MODE_TKIP Yes
116 * WLAN_CIPHER_SUITE_CCMP MWIFIEX_ENCRYPTION_MODE_CCMP Yes
117 * Others -1 No
118 */
119static int
120mwifiex_get_mwifiex_cipher(u32 cipher, int *wpa_enabled)
121{
122 int encrypt_mode;
123
124 if (wpa_enabled)
125 *wpa_enabled = 0;
126 switch (cipher) {
127 case IW_AUTH_CIPHER_NONE:
128 encrypt_mode = MWIFIEX_ENCRYPTION_MODE_NONE;
129 break;
130 case WLAN_CIPHER_SUITE_WEP40:
131 encrypt_mode = MWIFIEX_ENCRYPTION_MODE_WEP40;
132 break;
133 case WLAN_CIPHER_SUITE_WEP104:
134 encrypt_mode = MWIFIEX_ENCRYPTION_MODE_WEP104;
135 break;
136 case WLAN_CIPHER_SUITE_TKIP:
137 encrypt_mode = MWIFIEX_ENCRYPTION_MODE_TKIP;
138 if (wpa_enabled)
139 *wpa_enabled = 1;
140 break;
141 case WLAN_CIPHER_SUITE_CCMP:
142 encrypt_mode = MWIFIEX_ENCRYPTION_MODE_CCMP;
143 if (wpa_enabled)
144 *wpa_enabled = 1;
145 break;
146 default:
147 encrypt_mode = -1;
148 }
149
150 return encrypt_mode;
151}
152
153/*
154 * This function retrieves the private structure from kernel wiphy structure.
155 */
156static void *mwifiex_cfg80211_get_priv(struct wiphy *wiphy)
157{
158 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
159}
160
161/*
162 * CFG802.11 operation handler to delete a network key.
163 */
164static int
165mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
166 u8 key_index, bool pairwise, const u8 *mac_addr)
167{
168 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
169 int ret = 0;
170
171 ret = mwifiex_set_encode(priv, NULL, 0, key_index, 1);
172 if (ret) {
173 wiphy_err(wiphy, "deleting the crypto keys\n");
174 return -EFAULT;
175 }
176
177 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
178 return 0;
179}
180
181/*
182 * CFG802.11 operation handler to set Tx power.
183 */
184static int
185mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
186 enum nl80211_tx_power_setting type,
187 int dbm)
188{
189 int ret = 0;
190 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
191
192 ret = mwifiex_set_tx_power(priv, type, dbm);
193
194 return ret;
195}
196
197/*
198 * CFG802.11 operation handler to set Power Save option.
199 *
200 * The timeout value, if provided, is currently ignored.
201 */
202static int
203mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
204 struct net_device *dev,
205 bool enabled, int timeout)
206{
207 int ret = 0;
208 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
209
210 if (timeout)
211 wiphy_dbg(wiphy,
212 "info: ignoring the timeout value"
213 " for IEEE power save\n");
214
215 ret = mwifiex_drv_set_power(priv, enabled);
216
217 return ret;
218}
219
220/*
221 * CFG802.11 operation handler to set the default network key.
222 */
223static int
224mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
225 u8 key_index, bool unicast,
226 bool multicast)
227{
228 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
229 int ret;
230
231 ret = mwifiex_set_encode(priv, NULL, 0, key_index, 0);
232
233 wiphy_dbg(wiphy, "info: set default Tx key index\n");
234
235 if (ret)
236 return -EFAULT;
237
238 return 0;
239}
240
241/*
242 * CFG802.11 operation handler to add a network key.
243 */
244static int
245mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
246 u8 key_index, bool pairwise, const u8 *mac_addr,
247 struct key_params *params)
248{
249 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
250 int ret = 0;
251 int encrypt_mode;
252
253 encrypt_mode = mwifiex_get_mwifiex_cipher(params->cipher, NULL);
254
255 if (encrypt_mode != -1)
256 ret = mwifiex_set_encode(priv, params->key, params->key_len,
257 key_index, 0);
258
259 wiphy_dbg(wiphy, "info: crypto keys added\n");
260
261 if (ret)
262 return -EFAULT;
263
264 return 0;
265}
266
267/*
268 * This function sends domain information to the firmware.
269 *
270 * The following information are passed to the firmware -
271 * - Country codes
272 * - Sub bands (first channel, number of channels, maximum Tx power)
273 */
274static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
275{
276 u8 no_of_triplet = 0;
277 struct ieee80211_country_ie_triplet *t;
278 u8 no_of_parsed_chan = 0;
279 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
280 u8 i, flag = 0;
281 enum ieee80211_band band;
282 struct ieee80211_supported_band *sband;
283 struct ieee80211_channel *ch;
284 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
285 struct mwifiex_adapter *adapter = priv->adapter;
286 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
287 int ret = 0;
288
289 /* Set country code */
290 domain_info->country_code[0] = priv->country_code[0];
291 domain_info->country_code[1] = priv->country_code[1];
292 domain_info->country_code[2] = ' ';
293
294 band = mwifiex_band_to_radio_type(adapter->config_bands);
295 if (!wiphy->bands[band]) {
296 wiphy_err(wiphy, "11D: setting domain info in FW\n");
297 return -1;
298 }
299
300 sband = wiphy->bands[band];
301
302 for (i = 0; i < sband->n_channels ; i++) {
303 ch = &sband->channels[i];
304 if (ch->flags & IEEE80211_CHAN_DISABLED)
305 continue;
306
307 if (!flag) {
308 flag = 1;
309 first_chan = (u32) ch->hw_value;
310 next_chan = first_chan;
311 max_pwr = ch->max_power;
312 no_of_parsed_chan = 1;
313 continue;
314 }
315
316 if (ch->hw_value == next_chan + 1 &&
317 ch->max_power == max_pwr) {
318 next_chan++;
319 no_of_parsed_chan++;
320 } else {
321 t = &domain_info->triplet[no_of_triplet];
322 t->chans.first_channel = first_chan;
323 t->chans.num_channels = no_of_parsed_chan;
324 t->chans.max_power = max_pwr;
325 no_of_triplet++;
326 first_chan = (u32) ch->hw_value;
327 next_chan = first_chan;
328 max_pwr = ch->max_power;
329 no_of_parsed_chan = 1;
330 }
331 }
332
333 if (flag) {
334 t = &domain_info->triplet[no_of_triplet];
335 t->chans.first_channel = first_chan;
336 t->chans.num_channels = no_of_parsed_chan;
337 t->chans.max_power = max_pwr;
338 no_of_triplet++;
339 }
340
341 domain_info->no_of_triplet = no_of_triplet;
342 /* Send cmd to FW to set domain info */
343 ret = mwifiex_prepare_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
344 HostCmd_ACT_GEN_SET, 0, NULL, NULL);
345 if (ret)
346 wiphy_err(wiphy, "11D: setting domain info in FW\n");
347
348 return ret;
349}
350
351/*
352 * CFG802.11 regulatory domain callback function.
353 *
354 * This function is called when the regulatory domain is changed due to the
355 * following reasons -
356 * - Set by driver
357 * - Set by system core
358 * - Set by user
359 * - Set bt Country IE
360 */
361static int mwifiex_reg_notifier(struct wiphy *wiphy,
362 struct regulatory_request *request)
363{
364 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
365
366 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for domain"
367 " %c%c\n", request->alpha2[0], request->alpha2[1]);
368
369 memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
370
371 switch (request->initiator) {
372 case NL80211_REGDOM_SET_BY_DRIVER:
373 case NL80211_REGDOM_SET_BY_CORE:
374 case NL80211_REGDOM_SET_BY_USER:
375 break;
376 /* Todo: apply driver specific changes in channel flags based
377 on the request initiator if necessary. */
378 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
379 break;
380 }
381 mwifiex_send_domain_info_cmd_fw(wiphy);
382
383 return 0;
384}
385
386/*
387 * This function sets the RF channel.
388 *
389 * This function creates multiple IOCTL requests, populates them accordingly
390 * and issues them to set the band/channel and frequency.
391 */
392static int
393mwifiex_set_rf_channel(struct mwifiex_private *priv,
394 struct ieee80211_channel *chan,
395 enum nl80211_channel_type channel_type)
396{
397 struct mwifiex_chan_freq_power cfp;
398 int ret = 0;
399 int status = 0;
400 struct mwifiex_ds_band_cfg band_cfg;
401 int mode;
402 u8 wait_option = MWIFIEX_IOCTL_WAIT;
403 u32 config_bands = 0;
404 struct wiphy *wiphy = priv->wdev->wiphy;
405
406 mode = mwifiex_drv_get_mode(priv, wait_option);
407
408 if (chan) {
409 memset(&band_cfg, 0, sizeof(band_cfg));
410 /* Set appropriate bands */
411 if (chan->band == IEEE80211_BAND_2GHZ)
412 config_bands = BAND_B | BAND_G | BAND_GN;
413 else
414 config_bands = BAND_AN | BAND_A;
415 if (mode == MWIFIEX_BSS_MODE_INFRA
416 || mode == MWIFIEX_BSS_MODE_AUTO) {
417 band_cfg.config_bands = config_bands;
418 } else if (mode == MWIFIEX_BSS_MODE_IBSS) {
419 band_cfg.config_bands = config_bands;
420 band_cfg.adhoc_start_band = config_bands;
421 }
422 /* Set channel offset */
423 band_cfg.sec_chan_offset =
424 mwifiex_cfg80211_channel_type_to_mwifiex_channels
425 (channel_type);
426 status = mwifiex_radio_ioctl_band_cfg(priv, HostCmd_ACT_GEN_SET,
427 &band_cfg);
428
429 if (status)
430 return -EFAULT;
431 mwifiex_send_domain_info_cmd_fw(wiphy);
432 }
433
434 wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and "
435 "mode %d\n", config_bands, band_cfg.sec_chan_offset, mode);
436 if (!chan)
437 return ret;
438
439 memset(&cfp, 0, sizeof(cfp));
440 cfp.freq = chan->center_freq;
441 /* Convert frequency to channel */
442 cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
443
444 status = mwifiex_bss_ioctl_channel(priv, HostCmd_ACT_GEN_SET, &cfp);
445 if (status)
446 return -EFAULT;
447
448 ret = mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
449
450 return ret;
451}
452
453/*
454 * CFG802.11 operation handler to set channel.
455 *
456 * This function can only be used when station is not connected.
457 */
458static int
459mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev,
460 struct ieee80211_channel *chan,
461 enum nl80211_channel_type channel_type)
462{
463 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
464
465 if (priv->media_connected) {
466 wiphy_err(wiphy, "This setting is valid only when station "
467 "is not connected\n");
468 return -EINVAL;
469 }
470
471 return mwifiex_set_rf_channel(priv, chan, channel_type);
472}
473
474/*
475 * This function sets the fragmentation threshold.
476 *
477 * This function creates an IOCTL request, populates it accordingly
478 * and issues an IOCTL.
479 *
480 * The fragmentation threshold value must lies between MWIFIEX_FRAG_MIN_VALUE
481 * and MWIFIEX_FRAG_MAX_VALUE.
482 */
483static int
484mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
485{
486 int ret = 0;
487 int status = 0;
488 struct mwifiex_wait_queue *wait = NULL;
489 u8 wait_option = MWIFIEX_IOCTL_WAIT;
490
491 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE
492 || frag_thr > MWIFIEX_FRAG_MAX_VALUE)
493 return -EINVAL;
494
495 wait = mwifiex_alloc_fill_wait_queue(priv, wait_option);
496 if (!wait)
497 return -ENOMEM;
498
499 status = mwifiex_snmp_mib_ioctl(priv, wait, FRAG_THRESH_I,
500 HostCmd_ACT_GEN_SET, &frag_thr);
501
502 if (mwifiex_request_ioctl(priv, wait, status, wait_option))
503 ret = -EFAULT;
504
505 kfree(wait);
506 return ret;
507}
508
509/*
510 * This function sets the RTS threshold.
511 *
512 * This function creates an IOCTL request, populates it accordingly
513 * and issues an IOCTL.
514 */
515static int
516mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
517{
518 int ret = 0;
519 struct mwifiex_wait_queue *wait = NULL;
520 int status = 0;
521 u8 wait_option = MWIFIEX_IOCTL_WAIT;
522
523 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
524 rts_thr = MWIFIEX_RTS_MAX_VALUE;
525
526 wait = mwifiex_alloc_fill_wait_queue(priv, wait_option);
527 if (!wait)
528 return -ENOMEM;
529
530 status = mwifiex_snmp_mib_ioctl(priv, wait, RTS_THRESH_I,
531 HostCmd_ACT_GEN_SET, &rts_thr);
532
533 if (mwifiex_request_ioctl(priv, wait, status, wait_option))
534 ret = -EFAULT;
535
536 kfree(wait);
537 return ret;
538}
539
540/*
541 * CFG802.11 operation handler to set wiphy parameters.
542 *
543 * This function can be used to set the RTS threshold and the
544 * Fragmentation threshold of the driver.
545 */
546static int
547mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
548{
549 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
550
551 int ret = 0;
552
553 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
554 ret = mwifiex_set_rts(priv, wiphy->rts_threshold);
555
556 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
557 ret = mwifiex_set_frag(priv, wiphy->frag_threshold);
558
559 return ret;
560}
561
562/*
563 * CFG802.11 operation handler to change interface type.
564 *
565 * This function creates an IOCTL request, populates it accordingly
566 * and issues an IOCTL.
567 *
568 * The function also maps the CFG802.11 mode type into driver mode type.
569 * NL80211_IFTYPE_ADHOC -> MWIFIEX_BSS_MODE_IBSS
570 * NL80211_IFTYPE_STATION -> MWIFIEX_BSS_MODE_INFRA
571 * NL80211_IFTYPE_UNSPECIFIED -> MWIFIEX_BSS_MODE_AUTO
572 */
573static int
574mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
575 struct net_device *dev,
576 enum nl80211_iftype type, u32 *flags,
577 struct vif_params *params)
578{
579 int ret = 0;
580 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
581 int mode = -1;
582 struct mwifiex_wait_queue *wait = NULL;
583 int status = 0;
584
585 wait = mwifiex_alloc_fill_wait_queue(priv, MWIFIEX_IOCTL_WAIT);
586 if (!wait)
587 return -ENOMEM;
588
589 switch (type) {
590 case NL80211_IFTYPE_ADHOC:
591 mode = MWIFIEX_BSS_MODE_IBSS;
592 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC;
593 wiphy_dbg(wiphy, "info: setting interface type to adhoc\n");
594 break;
595 case NL80211_IFTYPE_STATION:
596 mode = MWIFIEX_BSS_MODE_INFRA;
597 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
598 wiphy_dbg(wiphy, "info: Setting interface type to managed\n");
599 break;
600 case NL80211_IFTYPE_UNSPECIFIED:
601 mode = MWIFIEX_BSS_MODE_AUTO;
602 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
603 wiphy_dbg(wiphy, "info: setting interface type to auto\n");
604 break;
605 default:
606 ret = -EINVAL;
607 }
608 if (ret)
609 goto done;
610 status = mwifiex_bss_ioctl_mode(priv, wait, HostCmd_ACT_GEN_SET, &mode);
611
612 if (mwifiex_request_ioctl(priv, wait, status, MWIFIEX_IOCTL_WAIT))
613 ret = -EFAULT;
614
615done:
616 kfree(wait);
617 return ret;
618}
619
620/*
621 * This function dumps the station information on a buffer.
622 *
623 * The following information are shown -
624 * - Total bytes transmitted
625 * - Total bytes received
626 * - Total packets transmitted
627 * - Total packets received
628 * - Signal quality level
629 * - Transmission rate
630 */
631static int
632mwifiex_dump_station_info(struct mwifiex_private *priv,
633 struct station_info *sinfo)
634{
635 struct mwifiex_ds_get_signal signal;
636 struct mwifiex_rate_cfg rate;
637 int ret = 0;
638
639 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
640 STATION_INFO_RX_PACKETS |
641 STATION_INFO_TX_PACKETS
642 | STATION_INFO_SIGNAL | STATION_INFO_TX_BITRATE;
643
644 /* Get signal information from the firmware */
645 memset(&signal, 0, sizeof(struct mwifiex_ds_get_signal));
646 if (mwifiex_get_signal_info(priv, MWIFIEX_IOCTL_WAIT, &signal)) {
647 dev_err(priv->adapter->dev, "getting signal information\n");
648 ret = -EFAULT;
649 }
650
651 if (mwifiex_drv_get_data_rate(priv, &rate)) {
652 dev_err(priv->adapter->dev, "getting data rate\n");
653 ret = -EFAULT;
654 }
655
656 sinfo->rx_bytes = priv->stats.rx_bytes;
657 sinfo->tx_bytes = priv->stats.tx_bytes;
658 sinfo->rx_packets = priv->stats.rx_packets;
659 sinfo->tx_packets = priv->stats.tx_packets;
660 sinfo->signal = priv->w_stats.qual.level;
661 sinfo->txrate.legacy = rate.rate;
662
663 return ret;
664}
665
666/*
667 * CFG802.11 operation handler to get station information.
668 *
669 * This function only works in connected mode, and dumps the
670 * requested station information, if available.
671 */
672static int
673mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
674 u8 *mac, struct station_info *sinfo)
675{
676 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
677 int ret = 0;
678
679 mwifiex_dump_station_info(priv, sinfo);
680
681 if (!priv->media_connected)
682 return -ENOENT;
683 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
684 return -ENOENT;
685
686
687 ret = mwifiex_dump_station_info(priv, sinfo);
688
689 return ret;
690}
691
692/* Supported rates to be advertised to the cfg80211 */
693
694static struct ieee80211_rate mwifiex_rates[] = {
695 {.bitrate = 10, .hw_value = 2, },
696 {.bitrate = 20, .hw_value = 4, },
697 {.bitrate = 55, .hw_value = 11, },
698 {.bitrate = 110, .hw_value = 22, },
699 {.bitrate = 220, .hw_value = 44, },
700 {.bitrate = 60, .hw_value = 12, },
701 {.bitrate = 90, .hw_value = 18, },
702 {.bitrate = 120, .hw_value = 24, },
703 {.bitrate = 180, .hw_value = 36, },
704 {.bitrate = 240, .hw_value = 48, },
705 {.bitrate = 360, .hw_value = 72, },
706 {.bitrate = 480, .hw_value = 96, },
707 {.bitrate = 540, .hw_value = 108, },
708 {.bitrate = 720, .hw_value = 144, },
709};
710
711/* Channel definitions to be advertised to cfg80211 */
712
713static struct ieee80211_channel mwifiex_channels_2ghz[] = {
714 {.center_freq = 2412, .hw_value = 1, },
715 {.center_freq = 2417, .hw_value = 2, },
716 {.center_freq = 2422, .hw_value = 3, },
717 {.center_freq = 2427, .hw_value = 4, },
718 {.center_freq = 2432, .hw_value = 5, },
719 {.center_freq = 2437, .hw_value = 6, },
720 {.center_freq = 2442, .hw_value = 7, },
721 {.center_freq = 2447, .hw_value = 8, },
722 {.center_freq = 2452, .hw_value = 9, },
723 {.center_freq = 2457, .hw_value = 10, },
724 {.center_freq = 2462, .hw_value = 11, },
725 {.center_freq = 2467, .hw_value = 12, },
726 {.center_freq = 2472, .hw_value = 13, },
727 {.center_freq = 2484, .hw_value = 14, },
728};
729
730static struct ieee80211_supported_band mwifiex_band_2ghz = {
731 .channels = mwifiex_channels_2ghz,
732 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
733 .bitrates = mwifiex_rates,
734 .n_bitrates = 14,
735};
736
737static struct ieee80211_channel mwifiex_channels_5ghz[] = {
738 {.center_freq = 5040, .hw_value = 8, },
739 {.center_freq = 5060, .hw_value = 12, },
740 {.center_freq = 5080, .hw_value = 16, },
741 {.center_freq = 5170, .hw_value = 34, },
742 {.center_freq = 5190, .hw_value = 38, },
743 {.center_freq = 5210, .hw_value = 42, },
744 {.center_freq = 5230, .hw_value = 46, },
745 {.center_freq = 5180, .hw_value = 36, },
746 {.center_freq = 5200, .hw_value = 40, },
747 {.center_freq = 5220, .hw_value = 44, },
748 {.center_freq = 5240, .hw_value = 48, },
749 {.center_freq = 5260, .hw_value = 52, },
750 {.center_freq = 5280, .hw_value = 56, },
751 {.center_freq = 5300, .hw_value = 60, },
752 {.center_freq = 5320, .hw_value = 64, },
753 {.center_freq = 5500, .hw_value = 100, },
754 {.center_freq = 5520, .hw_value = 104, },
755 {.center_freq = 5540, .hw_value = 108, },
756 {.center_freq = 5560, .hw_value = 112, },
757 {.center_freq = 5580, .hw_value = 116, },
758 {.center_freq = 5600, .hw_value = 120, },
759 {.center_freq = 5620, .hw_value = 124, },
760 {.center_freq = 5640, .hw_value = 128, },
761 {.center_freq = 5660, .hw_value = 132, },
762 {.center_freq = 5680, .hw_value = 136, },
763 {.center_freq = 5700, .hw_value = 140, },
764 {.center_freq = 5745, .hw_value = 149, },
765 {.center_freq = 5765, .hw_value = 153, },
766 {.center_freq = 5785, .hw_value = 157, },
767 {.center_freq = 5805, .hw_value = 161, },
768 {.center_freq = 5825, .hw_value = 165, },
769};
770
771static struct ieee80211_supported_band mwifiex_band_5ghz = {
772 .channels = mwifiex_channels_5ghz,
773 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
774 .bitrates = mwifiex_rates - 4,
775 .n_bitrates = ARRAY_SIZE(mwifiex_rates) + 4,
776};
777
778
779/* Supported crypto cipher suits to be advertised to cfg80211 */
780
781static const u32 mwifiex_cipher_suites[] = {
782 WLAN_CIPHER_SUITE_WEP40,
783 WLAN_CIPHER_SUITE_WEP104,
784 WLAN_CIPHER_SUITE_TKIP,
785 WLAN_CIPHER_SUITE_CCMP,
786};
787
788/*
789 * CFG802.11 operation handler for disconnection request.
790 *
791 * This function does not work when there is already a disconnection
792 * procedure going on.
793 */
794static int
795mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
796 u16 reason_code)
797{
798 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
799
800 if (priv->disconnect)
801 return -EBUSY;
802
803 priv->disconnect = 1;
804 if (mwifiex_disconnect(priv, MWIFIEX_IOCTL_WAIT, NULL))
805 return -EFAULT;
806
807 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
808 " reason code %d\n", priv->cfg_bssid, reason_code);
809
810 queue_work(priv->workqueue, &priv->cfg_workqueue);
811
812 return 0;
813}
814
815/*
816 * This function informs the CFG802.11 subsystem of a new IBSS.
817 *
818 * The following information are sent to the CFG802.11 subsystem
819 * to register the new IBSS. If we do not register the new IBSS,
820 * a kernel panic will result.
821 * - SSID
822 * - SSID length
823 * - BSSID
824 * - Channel
825 */
826static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
827{
828 int ret = 0;
829 struct ieee80211_channel *chan;
830 struct mwifiex_bss_info bss_info;
831 int ie_len = 0;
832 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
833
834 ret = mwifiex_get_bss_info(priv, &bss_info);
835 if (ret)
836 return ret;
837
838 ie_buf[0] = WLAN_EID_SSID;
839 ie_buf[1] = bss_info.ssid.ssid_len;
840
841 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
842 &bss_info.ssid.ssid,
843 bss_info.ssid.ssid_len);
844 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
845
846 chan = __ieee80211_get_channel(priv->wdev->wiphy,
847 ieee80211_channel_to_frequency(bss_info.bss_chan,
848 priv->curr_bss_params.band));
849
850 cfg80211_inform_bss(priv->wdev->wiphy, chan,
851 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
852 0, ie_buf, ie_len, 0, GFP_KERNEL);
853 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
854
855 return ret;
856}
857
858/*
859 * This function informs the CFG802.11 subsystem of a new BSS connection.
860 *
861 * The following information are sent to the CFG802.11 subsystem
862 * to register the new BSS connection. If we do not register the new BSS,
863 * a kernel panic will result.
864 * - MAC address
865 * - Capabilities
866 * - Beacon period
867 * - RSSI value
868 * - Channel
869 * - Supported rates IE
870 * - Extended capabilities IE
871 * - DS parameter set IE
872 * - HT Capability IE
873 * - Vendor Specific IE (221)
874 * - WPA IE
875 * - RSN IE
876 */
877static int mwifiex_inform_bss_from_scan_result(struct mwifiex_private *priv,
878 struct mwifiex_802_11_ssid *ssid)
879{
880 struct mwifiex_scan_resp scan_resp;
881 struct mwifiex_bssdescriptor *scan_table;
882 int i, j;
883 struct ieee80211_channel *chan;
884 u8 *ie, *tmp, *ie_buf;
885 u32 ie_len;
886 u64 ts = 0;
887 u8 *beacon;
888 int beacon_size;
889 u8 element_id, element_len;
890
891 memset(&scan_resp, 0, sizeof(scan_resp));
892 if (mwifiex_get_scan_table(priv, MWIFIEX_IOCTL_WAIT, &scan_resp))
893 return -EFAULT;
894
895#define MAX_IE_BUF 2048
896 ie_buf = kzalloc(MAX_IE_BUF, GFP_KERNEL);
897 if (!ie_buf) {
898 dev_err(priv->adapter->dev, "%s: failed to alloc ie_buf\n",
899 __func__);
900 return -ENOMEM;
901 }
902
903 scan_table = (struct mwifiex_bssdescriptor *) scan_resp.scan_table;
904 for (i = 0; i < scan_resp.num_in_scan_table; i++) {
905 if (ssid) {
906 /* Inform specific BSS only */
907 if (memcmp(ssid->ssid, scan_table[i].ssid.ssid,
908 ssid->ssid_len))
909 continue;
910 }
911 memset(ie_buf, 0, MAX_IE_BUF);
912 ie_buf[0] = WLAN_EID_SSID;
913 ie_buf[1] = scan_table[i].ssid.ssid_len;
914 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
915 scan_table[i].ssid.ssid, ie_buf[1]);
916
917 ie = ie_buf + ie_buf[1] + sizeof(struct ieee_types_header);
918 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
919
920 ie[0] = WLAN_EID_SUPP_RATES;
921
922 for (j = 0; j < sizeof(scan_table[i].supported_rates); j++) {
923 if (!scan_table[i].supported_rates[j])
924 break;
925 else
926 ie[j + sizeof(struct ieee_types_header)] =
927 scan_table[i].supported_rates[j];
928 }
929
930 ie[1] = j;
931 ie_len += ie[1] + sizeof(struct ieee_types_header);
932
933 beacon = scan_table[i].beacon_buf;
934 beacon_size = scan_table[i].beacon_buf_size;
935
936 /* Skip time stamp, beacon interval and capability */
937
938 if (beacon) {
939 beacon += sizeof(scan_table[i].beacon_period)
940 + sizeof(scan_table[i].time_stamp) +
941 +sizeof(scan_table[i].cap_info_bitmap);
942
943 beacon_size -= sizeof(scan_table[i].beacon_period)
944 + sizeof(scan_table[i].time_stamp)
945 + sizeof(scan_table[i].cap_info_bitmap);
946 }
947
948 while (beacon_size >= sizeof(struct ieee_types_header)) {
949 ie = ie_buf + ie_len;
950 element_id = *beacon;
951 element_len = *(beacon + 1);
952 if (beacon_size < (int) element_len +
953 sizeof(struct ieee_types_header)) {
954 dev_err(priv->adapter->dev, "%s: in processing"
955 " IE, bytes left < IE length\n",
956 __func__);
957 break;
958 }
959 switch (element_id) {
960 case WLAN_EID_EXT_CAPABILITY:
961 case WLAN_EID_DS_PARAMS:
962 case WLAN_EID_HT_CAPABILITY:
963 case WLAN_EID_VENDOR_SPECIFIC:
964 case WLAN_EID_RSN:
965 case WLAN_EID_BSS_AC_ACCESS_DELAY:
966 ie[0] = element_id;
967 ie[1] = element_len;
968 tmp = (u8 *) beacon;
969 memcpy(&ie[sizeof(struct ieee_types_header)],
970 tmp + sizeof(struct ieee_types_header),
971 element_len);
972 ie_len += ie[1] +
973 sizeof(struct ieee_types_header);
974 break;
975 default:
976 break;
977 }
978 beacon += element_len +
979 sizeof(struct ieee_types_header);
980 beacon_size -= element_len +
981 sizeof(struct ieee_types_header);
982 }
983 chan = ieee80211_get_channel(priv->wdev->wiphy,
984 scan_table[i].freq);
985 cfg80211_inform_bss(priv->wdev->wiphy, chan,
986 scan_table[i].mac_address,
987 ts, scan_table[i].cap_info_bitmap,
988 scan_table[i].beacon_period,
989 ie_buf, ie_len,
990 scan_table[i].rssi, GFP_KERNEL);
991 }
992
993 kfree(ie_buf);
994 return 0;
995}
996
997/*
998 * This function connects with a BSS.
999 *
1000 * This function handles both Infra and Ad-Hoc modes. It also performs
1001 * validity checking on the provided parameters, disconnects from the
1002 * current BSS (if any), sets up the association/scan parameters,
1003 * including security settings, and performs specific SSID scan before
1004 * trying to connect.
1005 *
1006 * For Infra mode, the function returns failure if the specified SSID
1007 * is not found in scan table. However, for Ad-Hoc mode, it can create
1008 * the IBSS if it does not exist. On successful completion in either case,
1009 * the function notifies the CFG802.11 subsystem of the new BSS connection,
1010 * otherwise the kernel will panic.
1011 */
1012static int
1013mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1014 u8 *bssid, int mode, struct ieee80211_channel *channel,
1015 struct cfg80211_connect_params *sme, bool privacy)
1016{
1017 struct mwifiex_802_11_ssid req_ssid;
1018 struct mwifiex_ssid_bssid ssid_bssid;
1019 int ret = 0;
1020 int auth_type = 0, pairwise_encrypt_mode = 0, wpa_enabled = 0;
1021 int group_encrypt_mode = 0;
1022 int alg_is_wep = 0;
1023
1024 memset(&req_ssid, 0, sizeof(struct mwifiex_802_11_ssid));
1025 memset(&ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid));
1026
1027 req_ssid.ssid_len = ssid_len;
1028 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1029 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1030 return -EINVAL;
1031 }
1032
1033 memcpy(req_ssid.ssid, ssid, ssid_len);
1034 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1035 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1036 return -EINVAL;
1037 }
1038
1039 /* disconnect before try to associate */
1040 mwifiex_disconnect(priv, MWIFIEX_IOCTL_WAIT, NULL);
1041
1042 if (channel)
1043 ret = mwifiex_set_rf_channel(priv, channel,
1044 mwifiex_channels_to_cfg80211_channel_type
1045 (priv->adapter->chan_offset));
1046
1047 ret = mwifiex_set_encode(priv, NULL, 0, 0, 1); /* Disable keys */
1048
1049 if (mode == MWIFIEX_BSS_MODE_IBSS) {
1050 /* "privacy" is set only for ad-hoc mode */
1051 if (privacy) {
1052 /*
1053 * Keep MWIFIEX_ENCRYPTION_MODE_WEP104 for now so that
1054 * the firmware can find a matching network from the
1055 * scan. The cfg80211 does not give us the encryption
1056 * mode at this stage so just setting it to WEP here.
1057 */
1058 wpa_enabled = 0;
1059 auth_type = MWIFIEX_AUTH_MODE_OPEN;
1060 ret = mwifiex_set_auth(priv,
1061 MWIFIEX_ENCRYPTION_MODE_WEP104,
1062 auth_type, wpa_enabled);
1063 }
1064
1065 goto done;
1066 }
1067
1068 /* Now handle infra mode. "sme" is valid for infra mode only */
1069 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC
1070 || sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
1071 auth_type = MWIFIEX_AUTH_MODE_OPEN;
1072 else if (sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY)
1073 auth_type = MWIFIEX_AUTH_MODE_SHARED;
1074
1075 if (sme->crypto.n_ciphers_pairwise) {
1076 pairwise_encrypt_mode = mwifiex_get_mwifiex_cipher(sme->crypto.
1077 ciphers_pairwise[0], &wpa_enabled);
1078 ret = mwifiex_set_auth(priv, pairwise_encrypt_mode, auth_type,
1079 wpa_enabled);
1080 }
1081
1082 if (sme->crypto.cipher_group) {
1083 group_encrypt_mode = mwifiex_get_mwifiex_cipher(sme->crypto.
1084 cipher_group, &wpa_enabled);
1085 ret = mwifiex_set_auth(priv, group_encrypt_mode, auth_type,
1086 wpa_enabled);
1087 }
1088 if (sme->ie)
1089 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1090
1091 if (sme->key) {
1092 alg_is_wep = mwifiex_is_alg_wep(pairwise_encrypt_mode)
1093 | mwifiex_is_alg_wep(group_encrypt_mode);
1094 if (alg_is_wep) {
1095 dev_dbg(priv->adapter->dev,
1096 "info: setting wep encryption"
1097 " with key len %d\n", sme->key_len);
1098 ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
1099 sme->key_idx, 0);
1100 }
1101 }
1102done:
1103 /* Do specific SSID scanning */
1104 if (mwifiex_request_scan(priv, MWIFIEX_IOCTL_WAIT, &req_ssid)) {
1105 dev_err(priv->adapter->dev, "scan error\n");
1106 return -EFAULT;
1107 }
1108
1109
1110 memcpy(&ssid_bssid.ssid, &req_ssid, sizeof(struct mwifiex_802_11_ssid));
1111
1112 if (mode != MWIFIEX_BSS_MODE_IBSS) {
1113 if (mwifiex_find_best_bss(priv, MWIFIEX_IOCTL_WAIT,
1114 &ssid_bssid))
1115 return -EFAULT;
1116 /* Inform the BSS information to kernel, otherwise
1117 * kernel will give a panic after successful assoc */
1118 if (mwifiex_inform_bss_from_scan_result(priv, &req_ssid))
1119 return -EFAULT;
1120 }
1121
1122 dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n",
1123 (char *) req_ssid.ssid, ssid_bssid.bssid);
1124
1125 memcpy(&priv->cfg_bssid, ssid_bssid.bssid, 6);
1126
1127 /* Connect to BSS by ESSID */
1128 memset(&ssid_bssid.bssid, 0, ETH_ALEN);
1129
1130 if (mwifiex_bss_start(priv, MWIFIEX_IOCTL_WAIT, &ssid_bssid))
1131 return -EFAULT;
1132
1133 if (mode == MWIFIEX_BSS_MODE_IBSS) {
1134 /* Inform the BSS information to kernel, otherwise
1135 * kernel will give a panic after successful assoc */
1136 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1137 return -EFAULT;
1138 }
1139
1140 return ret;
1141}
1142
1143/*
1144 * CFG802.11 operation handler for association request.
1145 *
1146 * This function does not work when the current mode is set to Ad-Hoc, or
1147 * when there is already an association procedure going on. The given BSS
1148 * information is used to associate.
1149 */
1150static int
1151mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1152 struct cfg80211_connect_params *sme)
1153{
1154 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1155 int ret = 0;
1156 int mode = 0;
1157
1158 if (priv->assoc_request)
1159 return -EBUSY;
1160
1161 mode = mwifiex_drv_get_mode(priv, MWIFIEX_IOCTL_WAIT);
1162
1163 if (mode == MWIFIEX_BSS_MODE_IBSS) {
1164 wiphy_err(wiphy, "received infra assoc request "
1165 "when station is in ibss mode\n");
1166 goto done;
1167 }
1168
1169 priv->assoc_request = 1;
1170
1171 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1172 (char *) sme->ssid, sme->bssid);
1173
1174 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1175 mode, sme->channel, sme, 0);
1176
1177done:
1178 priv->assoc_result = ret;
1179 queue_work(priv->workqueue, &priv->cfg_workqueue);
1180 return ret;
1181}
1182
1183/*
1184 * CFG802.11 operation handler to join an IBSS.
1185 *
1186 * This function does not work in any mode other than Ad-Hoc, or if
1187 * a join operation is already in progress.
1188 */
1189static int
1190mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1191 struct cfg80211_ibss_params *params)
1192{
1193 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
1194 int ret = 0;
1195 int mode = 0;
1196
1197 if (priv->ibss_join_request)
1198 return -EBUSY;
1199
1200 mode = mwifiex_drv_get_mode(priv, MWIFIEX_IOCTL_WAIT);
1201 if (mode != MWIFIEX_BSS_MODE_IBSS) {
1202 wiphy_err(wiphy, "request to join ibss received "
1203 "when station is not in ibss mode\n");
1204 goto done;
1205 }
1206
1207 priv->ibss_join_request = 1;
1208
1209 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1210 (char *) params->ssid, params->bssid);
1211
1212 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1213 params->bssid, mode, params->channel, NULL,
1214 params->privacy);
1215done:
1216 priv->ibss_join_result = ret;
1217 queue_work(priv->workqueue, &priv->cfg_workqueue);
1218 return ret;
1219}
1220
1221/*
1222 * CFG802.11 operation handler to leave an IBSS.
1223 *
1224 * This function does not work if a leave operation is
1225 * already in progress.
1226 */
1227static int
1228mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1229{
1230 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
1231
1232 if (priv->disconnect)
1233 return -EBUSY;
1234
1235 priv->disconnect = 1;
1236
1237 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1238 priv->cfg_bssid);
1239 if (mwifiex_disconnect(priv, MWIFIEX_IOCTL_WAIT, NULL))
1240 return -EFAULT;
1241
1242 queue_work(priv->workqueue, &priv->cfg_workqueue);
1243
1244 return 0;
1245}
1246
1247/*
1248 * CFG802.11 operation handler for scan request.
1249 *
1250 * This function issues a scan request to the firmware based upon
1251 * the user specified scan configuration. On successfull completion,
1252 * it also informs the results.
1253 */
1254static int
1255mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
1256 struct cfg80211_scan_request *request)
1257{
1258 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1259
1260 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1261
1262 if (priv->scan_request && priv->scan_request != request)
1263 return -EBUSY;
1264
1265 priv->scan_request = request;
1266
1267 queue_work(priv->workqueue, &priv->cfg_workqueue);
1268 return 0;
1269}
1270
1271/*
1272 * This function sets up the CFG802.11 specific HT capability fields
1273 * with default values.
1274 *
1275 * The following default values are set -
1276 * - HT Supported = True
1277 * - Maximum AMPDU length factor = 0x3
1278 * - Minimum AMPDU spacing = 0x6
1279 * - HT Capabilities map = IEEE80211_HT_CAP_SUP_WIDTH_20_40 (0x0002)
1280 * - MCS information, Rx mask = 0xff
1281 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1282 */
1283static void
1284mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1285 struct mwifiex_private *priv)
1286{
1287 int rx_mcs_supp;
1288 struct ieee80211_mcs_info mcs_set;
1289 u8 *mcs = (u8 *)&mcs_set;
1290 struct mwifiex_adapter *adapter = priv->adapter;
1291
1292 ht_info->ht_supported = true;
1293 ht_info->ampdu_factor = 0x3;
1294 ht_info->ampdu_density = 0x6;
1295
1296 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1297 ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1298
1299 rx_mcs_supp = GET_RXMCSSUPP(priv->adapter->hw_dev_mcs_support);
1300 /* Set MCS for 1x1 */
1301 memset(mcs, 0xff, rx_mcs_supp);
1302 /* Clear all the other values */
1303 memset(&mcs[rx_mcs_supp], 0,
1304 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1305 if (priv->bss_mode == MWIFIEX_BSS_MODE_INFRA ||
1306 (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap) &&
1307 ISSUPP_CHANWIDTH40(adapter->usr_dot_11n_dev_cap)))
1308 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1309 SETHT_MCS32(mcs_set.rx_mask);
1310
1311 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1312
1313 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1314}
1315
1316/* station cfg80211 operations */
1317static struct cfg80211_ops mwifiex_cfg80211_ops = {
1318 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
1319 .scan = mwifiex_cfg80211_scan,
1320 .connect = mwifiex_cfg80211_connect,
1321 .disconnect = mwifiex_cfg80211_disconnect,
1322 .get_station = mwifiex_cfg80211_get_station,
1323 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
1324 .set_channel = mwifiex_cfg80211_set_channel,
1325 .join_ibss = mwifiex_cfg80211_join_ibss,
1326 .leave_ibss = mwifiex_cfg80211_leave_ibss,
1327 .add_key = mwifiex_cfg80211_add_key,
1328 .del_key = mwifiex_cfg80211_del_key,
1329 .set_default_key = mwifiex_cfg80211_set_default_key,
1330 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
1331 .set_tx_power = mwifiex_cfg80211_set_tx_power,
1332};
1333
1334/*
1335 * This function registers the device with CFG802.11 subsystem.
1336 *
1337 * The function creates the wireless device/wiphy, populates it with
1338 * default parameters and handler function pointers, and finally
1339 * registers the device.
1340 */
1341int mwifiex_register_cfg80211(struct net_device *dev, u8 *mac,
1342 struct mwifiex_private *priv)
1343{
1344 int ret = 0;
1345 void *wdev_priv = NULL;
1346 struct wireless_dev *wdev;
1347
1348 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1349 if (!wdev) {
1350 dev_err(priv->adapter->dev, "%s: allocating wireless device\n",
1351 __func__);
1352 return -ENOMEM;
1353 }
1354 wdev->wiphy =
1355 wiphy_new(&mwifiex_cfg80211_ops,
1356 sizeof(struct mwifiex_private *));
1357 if (!wdev->wiphy)
1358 return -ENOMEM;
1359 wdev->iftype = NL80211_IFTYPE_STATION;
1360 wdev->wiphy->max_scan_ssids = 10;
1361 wdev->wiphy->interface_modes =
1362 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
1363 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
1364 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
1365
1366 /* Initialize cipher suits */
1367 wdev->wiphy->cipher_suites = mwifiex_cipher_suites;
1368 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
1369
1370 /* Initialize parameters for 2GHz band */
1371
1372 mwifiex_setup_ht_caps(&wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap,
1373 priv);
1374 mwifiex_setup_ht_caps(&wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap,
1375 priv);
1376
1377 memcpy(wdev->wiphy->perm_addr, mac, 6);
1378 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1379
1380 /* We are using custom domains */
1381 wdev->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1382
1383 wdev->wiphy->reg_notifier = mwifiex_reg_notifier;
1384
1385 /* Set struct mwifiex_private pointer in wiphy_priv */
1386 wdev_priv = wiphy_priv(wdev->wiphy);
1387
1388 *(unsigned long *) wdev_priv = (unsigned long) priv;
1389
1390 ret = wiphy_register(wdev->wiphy);
1391 if (ret < 0) {
1392 dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",
1393 __func__);
1394 wiphy_free(wdev->wiphy);
1395 return ret;
1396 } else {
1397 dev_dbg(priv->adapter->dev,
1398 "info: successfully registered wiphy device\n");
1399 }
1400
1401 dev_net_set(dev, wiphy_net(wdev->wiphy));
1402 dev->ieee80211_ptr = wdev;
1403 memcpy(dev->dev_addr, wdev->wiphy->perm_addr, 6);
1404 memcpy(dev->perm_addr, wdev->wiphy->perm_addr, 6);
1405 SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy));
1406 priv->wdev = wdev;
1407
1408 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1409 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
1410 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
1411
1412 return ret;
1413}
1414
1415/*
1416 * This function handles the result of different pending network operations.
1417 *
1418 * The following operations are handled and CFG802.11 subsystem is
1419 * notified accordingly -
1420 * - Scan request completion
1421 * - Association request completion
1422 * - IBSS join request completion
1423 * - Disconnect request completion
1424 */
1425void
1426mwifiex_cfg80211_results(struct work_struct *work)
1427{
1428 struct mwifiex_private *priv =
1429 container_of(work, struct mwifiex_private, cfg_workqueue);
1430 struct mwifiex_user_scan_cfg *scan_req;
1431 int ret = 0, i;
1432 struct ieee80211_channel *chan;
1433
1434 if (priv->scan_request) {
1435 scan_req = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1436 GFP_KERNEL);
1437 if (!scan_req) {
1438 dev_err(priv->adapter->dev, "failed to alloc "
1439 "scan_req\n");
1440 return;
1441 }
1442 for (i = 0; i < priv->scan_request->n_ssids; i++) {
1443 memcpy(scan_req->ssid_list[i].ssid,
1444 priv->scan_request->ssids[i].ssid,
1445 priv->scan_request->ssids[i].ssid_len);
1446 scan_req->ssid_list[i].max_len =
1447 priv->scan_request->ssids[i].ssid_len;
1448 }
1449 for (i = 0; i < priv->scan_request->n_channels; i++) {
1450 chan = priv->scan_request->channels[i];
1451 scan_req->chan_list[i].chan_number = chan->hw_value;
1452 scan_req->chan_list[i].radio_type = chan->band;
1453 if (chan->flags & IEEE80211_CHAN_DISABLED)
1454 scan_req->chan_list[i].scan_type =
1455 MWIFIEX_SCAN_TYPE_PASSIVE;
1456 else
1457 scan_req->chan_list[i].scan_type =
1458 MWIFIEX_SCAN_TYPE_ACTIVE;
1459 scan_req->chan_list[i].scan_time = 0;
1460 }
1461 if (mwifiex_set_user_scan_ioctl(priv, scan_req)) {
1462 ret = -EFAULT;
1463 goto done;
1464 }
1465 if (mwifiex_inform_bss_from_scan_result(priv, NULL))
1466 ret = -EFAULT;
1467done:
1468 priv->scan_result_status = ret;
1469 dev_dbg(priv->adapter->dev, "info: %s: sending scan results\n",
1470 __func__);
1471 cfg80211_scan_done(priv->scan_request,
1472 (priv->scan_result_status < 0));
1473 priv->scan_request = NULL;
1474 kfree(scan_req);
1475 }
1476
1477 if (priv->assoc_request) {
1478 if (!priv->assoc_result) {
1479 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1480 NULL, 0, NULL, 0,
1481 WLAN_STATUS_SUCCESS,
1482 GFP_KERNEL);
1483 dev_dbg(priv->adapter->dev,
1484 "info: associated to bssid %pM successfully\n",
1485 priv->cfg_bssid);
1486 } else {
1487 dev_dbg(priv->adapter->dev,
1488 "info: association to bssid %pM failed\n",
1489 priv->cfg_bssid);
1490 memset(priv->cfg_bssid, 0, ETH_ALEN);
1491 }
1492 priv->assoc_request = 0;
1493 priv->assoc_result = 0;
1494 }
1495
1496 if (priv->ibss_join_request) {
1497 if (!priv->ibss_join_result) {
1498 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1499 GFP_KERNEL);
1500 dev_dbg(priv->adapter->dev,
1501 "info: joined/created adhoc network with bssid"
1502 " %pM successfully\n", priv->cfg_bssid);
1503 } else {
1504 dev_dbg(priv->adapter->dev,
1505 "info: failed creating/joining adhoc network\n");
1506 }
1507 priv->ibss_join_request = 0;
1508 priv->ibss_join_result = 0;
1509 }
1510
1511 if (priv->disconnect) {
1512 memset(priv->cfg_bssid, 0, ETH_ALEN);
1513 priv->disconnect = 0;
1514 }
1515
1516 return;
1517}
Linux kernel - Deliverables
This page took 0.083858 seconds and 5 git commands to generate.