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mac80211: remove linux/wireless.h inclusion
[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{
5e6e3a92
BZ		 37 switch (channel_type) {
38 case NL80211_CHAN_NO_HT:
39 case NL80211_CHAN_HT20:
636c4598 40 return NO_SEC_CHANNEL;
5e6e3a92 41 case NL80211_CHAN_HT40PLUS:
636c4598 42 return SEC_CHANNEL_ABOVE;
5e6e3a92 43 case NL80211_CHAN_HT40MINUS:
636c4598 44 return SEC_CHANNEL_BELOW;
5e6e3a92 45 default:
636c4598 46 return NO_SEC_CHANNEL;
5e6e3a92 47 }
5e6e3a92
BZ		 48}
49
50/*
51 * This function maps the driver channel type into nl802.11 channel type.
52 *
53 * The mapping is as follows -
54 * NO_SEC_CHANNEL -> NL80211_CHAN_HT20
55 * SEC_CHANNEL_ABOVE -> NL80211_CHAN_HT40PLUS
56 * SEC_CHANNEL_BELOW -> NL80211_CHAN_HT40MINUS
57 * Others -> NL80211_CHAN_HT20
58 */
59static enum nl80211_channel_type
60mwifiex_channels_to_cfg80211_channel_type(int channel_type)
61{
5e6e3a92
BZ		 62 switch (channel_type) {
63 case NO_SEC_CHANNEL:
636c4598 64 return NL80211_CHAN_HT20;
5e6e3a92 65 case SEC_CHANNEL_ABOVE:
636c4598 66 return NL80211_CHAN_HT40PLUS;
5e6e3a92 67 case SEC_CHANNEL_BELOW:
636c4598 68 return NL80211_CHAN_HT40MINUS;
5e6e3a92 69 default:
636c4598 70 return NL80211_CHAN_HT20;
5e6e3a92 71 }
5e6e3a92
BZ		 72}
73
74/*
75 * This function checks whether WEP is set.
76 */
77static int
78mwifiex_is_alg_wep(u32 cipher)
79{
5e6e3a92 80 switch (cipher) {
2be50b8d
YAP		 81 case WLAN_CIPHER_SUITE_WEP40:
82 case WLAN_CIPHER_SUITE_WEP104:
270e58e8 83 return 1;
5e6e3a92 84 default:
5e6e3a92
BZ		 85 break;
86 }
270e58e8
YAP		 87
88 return 0;
5e6e3a92
BZ		 89}
90
5e6e3a92
BZ		 91/*
92 * This function retrieves the private structure from kernel wiphy structure.
93 */
94static void *mwifiex_cfg80211_get_priv(struct wiphy *wiphy)
95{
96 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
97}
98
99/*
100 * CFG802.11 operation handler to delete a network key.
101 */
102static int
103mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
104 u8 key_index, bool pairwise, const u8 *mac_addr)
105{
106 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
5e6e3a92 107
636c4598 108 if (mwifiex_set_encode(priv, NULL, 0, key_index, 1)) {
5e6e3a92
BZ		 109 wiphy_err(wiphy, "deleting the crypto keys\n");
110 return -EFAULT;
111 }
112
113 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
114 return 0;
115}
116
117/*
118 * CFG802.11 operation handler to set Tx power.
119 */
120static int
121mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
122 enum nl80211_tx_power_setting type,
123 int dbm)
124{
5e6e3a92 125 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
600f5d90 126 struct mwifiex_power_cfg power_cfg;
5e6e3a92 127
600f5d90
AK		 128 if (type == NL80211_TX_POWER_FIXED) {
129 power_cfg.is_power_auto = 0;
130 power_cfg.power_level = dbm;
131 } else {
132 power_cfg.is_power_auto = 1;
133 }
134
636c4598 135 return mwifiex_set_tx_power(priv, &power_cfg);
5e6e3a92
BZ		 136}
137
138/*
139 * CFG802.11 operation handler to set Power Save option.
140 *
141 * The timeout value, if provided, is currently ignored.
142 */
143static int
144mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
145 struct net_device *dev,
146 bool enabled, int timeout)
147{
5e6e3a92 148 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
600f5d90 149 u32 ps_mode;
5e6e3a92
BZ		 150
151 if (timeout)
152 wiphy_dbg(wiphy,
153 "info: ignoring the timeout value"
154 " for IEEE power save\n");
155
600f5d90 156 ps_mode = enabled;
5e6e3a92 157
636c4598 158 return mwifiex_drv_set_power(priv, &ps_mode);
5e6e3a92
BZ		 159}
160
161/*
162 * CFG802.11 operation handler to set the default network key.
163 */
164static int
165mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
166 u8 key_index, bool unicast,
167 bool multicast)
168{
169 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
5e6e3a92 170
2d3d0a88
AK		 171 /* Return if WEP key not configured */
172 if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED)
173 return 0;
174
636c4598
YAP		 175 if (mwifiex_set_encode(priv, NULL, 0, key_index, 0)) {
176 wiphy_err(wiphy, "set default Tx key index\n");
5e6e3a92 177 return -EFAULT;
636c4598 178 }
5e6e3a92
BZ		 179
180 return 0;
181}
182
183/*
184 * CFG802.11 operation handler to add a network key.
185 */
186static int
187mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
188 u8 key_index, bool pairwise, const u8 *mac_addr,
189 struct key_params *params)
190{
191 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
5e6e3a92 192
636c4598
YAP		 193 if (mwifiex_set_encode(priv, params->key, params->key_len,
194 key_index, 0)) {
195 wiphy_err(wiphy, "crypto keys added\n");
5e6e3a92 196 return -EFAULT;
636c4598 197 }
5e6e3a92
BZ		 198
199 return 0;
200}
201
202/*
203 * This function sends domain information to the firmware.
204 *
205 * The following information are passed to the firmware -
206 * - Country codes
207 * - Sub bands (first channel, number of channels, maximum Tx power)
208 */
209static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
210{
211 u8 no_of_triplet = 0;
212 struct ieee80211_country_ie_triplet *t;
213 u8 no_of_parsed_chan = 0;
214 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
215 u8 i, flag = 0;
216 enum ieee80211_band band;
217 struct ieee80211_supported_band *sband;
218 struct ieee80211_channel *ch;
219 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
220 struct mwifiex_adapter *adapter = priv->adapter;
221 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
5e6e3a92
BZ		 222
223 /* Set country code */
224 domain_info->country_code[0] = priv->country_code[0];
225 domain_info->country_code[1] = priv->country_code[1];
226 domain_info->country_code[2] = ' ';
227
228 band = mwifiex_band_to_radio_type(adapter->config_bands);
229 if (!wiphy->bands[band]) {
230 wiphy_err(wiphy, "11D: setting domain info in FW\n");
231 return -1;
232 }
233
234 sband = wiphy->bands[band];
235
236 for (i = 0; i < sband->n_channels ; i++) {
237 ch = &sband->channels[i];
238 if (ch->flags & IEEE80211_CHAN_DISABLED)
239 continue;
240
241 if (!flag) {
242 flag = 1;
243 first_chan = (u32) ch->hw_value;
244 next_chan = first_chan;
245 max_pwr = ch->max_power;
246 no_of_parsed_chan = 1;
247 continue;
248 }
249
250 if (ch->hw_value == next_chan + 1 &&
251 ch->max_power == max_pwr) {
252 next_chan++;
253 no_of_parsed_chan++;
254 } else {
255 t = &domain_info->triplet[no_of_triplet];
256 t->chans.first_channel = first_chan;
257 t->chans.num_channels = no_of_parsed_chan;
258 t->chans.max_power = max_pwr;
259 no_of_triplet++;
260 first_chan = (u32) ch->hw_value;
261 next_chan = first_chan;
262 max_pwr = ch->max_power;
263 no_of_parsed_chan = 1;
264 }
265 }
266
267 if (flag) {
268 t = &domain_info->triplet[no_of_triplet];
269 t->chans.first_channel = first_chan;
270 t->chans.num_channels = no_of_parsed_chan;
271 t->chans.max_power = max_pwr;
272 no_of_triplet++;
273 }
274
275 domain_info->no_of_triplet = no_of_triplet;
636c4598
YAP		 276
277 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
278 HostCmd_ACT_GEN_SET, 0, NULL)) {
5e6e3a92 279 wiphy_err(wiphy, "11D: setting domain info in FW\n");
636c4598
YAP		 280 return -1;
281 }
5e6e3a92 282
636c4598 283 return 0;
5e6e3a92
BZ		 284}
285
286/*
287 * CFG802.11 regulatory domain callback function.
288 *
289 * This function is called when the regulatory domain is changed due to the
290 * following reasons -
291 * - Set by driver
292 * - Set by system core
293 * - Set by user
294 * - Set bt Country IE
295 */
296static int mwifiex_reg_notifier(struct wiphy *wiphy,
297 struct regulatory_request *request)
298{
299 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
300
301 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for domain"
302 " %c%c\n", request->alpha2[0], request->alpha2[1]);
303
304 memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
305
306 switch (request->initiator) {
307 case NL80211_REGDOM_SET_BY_DRIVER:
308 case NL80211_REGDOM_SET_BY_CORE:
309 case NL80211_REGDOM_SET_BY_USER:
310 break;
311 /* Todo: apply driver specific changes in channel flags based
312 on the request initiator if necessary. */
313 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
314 break;
315 }
316 mwifiex_send_domain_info_cmd_fw(wiphy);
317
318 return 0;
319}
320
321/*
322 * This function sets the RF channel.
323 *
324 * This function creates multiple IOCTL requests, populates them accordingly
325 * and issues them to set the band/channel and frequency.
326 */
327static int
328mwifiex_set_rf_channel(struct mwifiex_private *priv,
329 struct ieee80211_channel *chan,
330 enum nl80211_channel_type channel_type)
331{
332 struct mwifiex_chan_freq_power cfp;
5e6e3a92 333 struct mwifiex_ds_band_cfg band_cfg;
5e6e3a92
BZ		 334 u32 config_bands = 0;
335 struct wiphy *wiphy = priv->wdev->wiphy;
336
5e6e3a92
BZ		 337 if (chan) {
338 memset(&band_cfg, 0, sizeof(band_cfg));
339 /* Set appropriate bands */
340 if (chan->band == IEEE80211_BAND_2GHZ)
341 config_bands = BAND_B | BAND_G | BAND_GN;
342 else
343 config_bands = BAND_AN | BAND_A;
eecd8250
BZ		 344 if (priv->bss_mode == NL80211_IFTYPE_STATION
345 || priv->bss_mode == NL80211_IFTYPE_UNSPECIFIED) {
5e6e3a92 346 band_cfg.config_bands = config_bands;
eecd8250 347 } else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
5e6e3a92
BZ		 348 band_cfg.config_bands = config_bands;
349 band_cfg.adhoc_start_band = config_bands;
350 }
636c4598 351
5e6e3a92
BZ		 352 band_cfg.sec_chan_offset =
353 mwifiex_cfg80211_channel_type_to_mwifiex_channels
354 (channel_type);
5e6e3a92 355
636c4598 356 if (mwifiex_set_radio_band_cfg(priv, &band_cfg))
5e6e3a92 357 return -EFAULT;
636c4598 358
5e6e3a92
BZ		 359 mwifiex_send_domain_info_cmd_fw(wiphy);
360 }
361
362 wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and "
eecd8250
BZ		 363 "mode %d\n", config_bands, band_cfg.sec_chan_offset,
364 priv->bss_mode);
5e6e3a92 365 if (!chan)
636c4598 366 return 0;
5e6e3a92
BZ		 367
368 memset(&cfp, 0, sizeof(cfp));
369 cfp.freq = chan->center_freq;
5e6e3a92
BZ		 370 cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
371
636c4598 372 if (mwifiex_bss_set_channel(priv, &cfp))
5e6e3a92
BZ		 373 return -EFAULT;
374
636c4598 375 return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
5e6e3a92
BZ		 376}
377
378/*
379 * CFG802.11 operation handler to set channel.
380 *
381 * This function can only be used when station is not connected.
382 */
383static int
384mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev,
385 struct ieee80211_channel *chan,
386 enum nl80211_channel_type channel_type)
387{
388 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
389
390 if (priv->media_connected) {
391 wiphy_err(wiphy, "This setting is valid only when station "
392 "is not connected\n");
393 return -EINVAL;
394 }
395
396 return mwifiex_set_rf_channel(priv, chan, channel_type);
397}
398
399/*
400 * This function sets the fragmentation threshold.
401 *
600f5d90 402 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
5e6e3a92
BZ		 403 * and MWIFIEX_FRAG_MAX_VALUE.
404 */
405static int
406mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
407{
270e58e8 408 int ret;
5e6e3a92
BZ		 409
410 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE
411 || frag_thr > MWIFIEX_FRAG_MAX_VALUE)
412 return -EINVAL;
413
600f5d90
AK		 414 /* Send request to firmware */
415 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
416 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
417 &frag_thr);
5e6e3a92 418
5e6e3a92
BZ		 419 return ret;
420}
421
422/*
423 * This function sets the RTS threshold.
600f5d90
AK		 424
425 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
426 * and MWIFIEX_RTS_MAX_VALUE.
5e6e3a92
BZ		 427 */
428static int
429mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
430{
5e6e3a92
BZ		 431 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
432 rts_thr = MWIFIEX_RTS_MAX_VALUE;
433
636c4598 434 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
600f5d90
AK		 435 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
436 &rts_thr);
5e6e3a92
BZ		 437}
438
439/*
440 * CFG802.11 operation handler to set wiphy parameters.
441 *
442 * This function can be used to set the RTS threshold and the
443 * Fragmentation threshold of the driver.
444 */
445static int
446mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
447{
448 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
5e6e3a92
BZ		 449 int ret = 0;
450
636c4598 451 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
5e6e3a92 452 ret = mwifiex_set_rts(priv, wiphy->rts_threshold);
636c4598
YAP		 453 if (ret)
454 return ret;
455 }
5e6e3a92
BZ		 456
457 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
458 ret = mwifiex_set_frag(priv, wiphy->frag_threshold);
459
460 return ret;
461}
462
463/*
464 * CFG802.11 operation handler to change interface type.
5e6e3a92
BZ		 465 */
466static int
467mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
468 struct net_device *dev,
469 enum nl80211_iftype type, u32 *flags,
470 struct vif_params *params)
471{
270e58e8 472 int ret;
5e6e3a92 473 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
5e6e3a92 474
eecd8250
BZ		 475 if (priv->bss_mode == type) {
476 wiphy_warn(wiphy, "already set to required type\n");
477 return 0;
478 }
479
480 priv->bss_mode = type;
5e6e3a92
BZ		 481
482 switch (type) {
483 case NL80211_IFTYPE_ADHOC:
5e6e3a92
BZ		 484 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC;
485 wiphy_dbg(wiphy, "info: setting interface type to adhoc\n");
486 break;
487 case NL80211_IFTYPE_STATION:
5e6e3a92 488 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
eecd8250 489 wiphy_dbg(wiphy, "info: setting interface type to managed\n");
5e6e3a92
BZ		 490 break;
491 case NL80211_IFTYPE_UNSPECIFIED:
5e6e3a92
BZ		 492 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
493 wiphy_dbg(wiphy, "info: setting interface type to auto\n");
eecd8250 494 return 0;
5e6e3a92 495 default:
eecd8250
BZ		 496 wiphy_err(wiphy, "unknown interface type: %d\n", type);
497 return -EINVAL;
5e6e3a92 498 }
5e6e3a92 499
600f5d90 500 mwifiex_deauthenticate(priv, NULL);
eecd8250 501
f986b6d5 502 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
eecd8250 503
600f5d90
AK		 504 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
505 HostCmd_ACT_GEN_SET, 0, NULL);
eecd8250 506
5e6e3a92
BZ		 507 return ret;
508}
509
510/*
511 * This function dumps the station information on a buffer.
512 *
513 * The following information are shown -
514 * - Total bytes transmitted
515 * - Total bytes received
516 * - Total packets transmitted
517 * - Total packets received
518 * - Signal quality level
519 * - Transmission rate
520 */
521static int
522mwifiex_dump_station_info(struct mwifiex_private *priv,
523 struct station_info *sinfo)
524{
525 struct mwifiex_ds_get_signal signal;
526 struct mwifiex_rate_cfg rate;
527 int ret = 0;
528
529 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
530 STATION_INFO_RX_PACKETS |
531 STATION_INFO_TX_PACKETS
532 | STATION_INFO_SIGNAL | STATION_INFO_TX_BITRATE;
533
534 /* Get signal information from the firmware */
535 memset(&signal, 0, sizeof(struct mwifiex_ds_get_signal));
600f5d90 536 if (mwifiex_get_signal_info(priv, &signal)) {
5e6e3a92
BZ		 537 dev_err(priv->adapter->dev, "getting signal information\n");
538 ret = -EFAULT;
539 }
540
541 if (mwifiex_drv_get_data_rate(priv, &rate)) {
542 dev_err(priv->adapter->dev, "getting data rate\n");
543 ret = -EFAULT;
544 }
545
546 sinfo->rx_bytes = priv->stats.rx_bytes;
547 sinfo->tx_bytes = priv->stats.tx_bytes;
548 sinfo->rx_packets = priv->stats.rx_packets;
549 sinfo->tx_packets = priv->stats.tx_packets;
550 sinfo->signal = priv->w_stats.qual.level;
551 sinfo->txrate.legacy = rate.rate;
552
553 return ret;
554}
555
556/*
557 * CFG802.11 operation handler to get station information.
558 *
559 * This function only works in connected mode, and dumps the
560 * requested station information, if available.
561 */
562static int
563mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
564 u8 *mac, struct station_info *sinfo)
565{
566 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
5e6e3a92
BZ		 567
568 mwifiex_dump_station_info(priv, sinfo);
569
570 if (!priv->media_connected)
571 return -ENOENT;
572 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
573 return -ENOENT;
574
636c4598 575 return mwifiex_dump_station_info(priv, sinfo);
5e6e3a92
BZ		 576}
577
578/* Supported rates to be advertised to the cfg80211 */
579
580static struct ieee80211_rate mwifiex_rates[] = {
581 {.bitrate = 10, .hw_value = 2, },
582 {.bitrate = 20, .hw_value = 4, },
583 {.bitrate = 55, .hw_value = 11, },
584 {.bitrate = 110, .hw_value = 22, },
585 {.bitrate = 220, .hw_value = 44, },
586 {.bitrate = 60, .hw_value = 12, },
587 {.bitrate = 90, .hw_value = 18, },
588 {.bitrate = 120, .hw_value = 24, },
589 {.bitrate = 180, .hw_value = 36, },
590 {.bitrate = 240, .hw_value = 48, },
591 {.bitrate = 360, .hw_value = 72, },
592 {.bitrate = 480, .hw_value = 96, },
593 {.bitrate = 540, .hw_value = 108, },
594 {.bitrate = 720, .hw_value = 144, },
595};
596
597/* Channel definitions to be advertised to cfg80211 */
598
599static struct ieee80211_channel mwifiex_channels_2ghz[] = {
600 {.center_freq = 2412, .hw_value = 1, },
601 {.center_freq = 2417, .hw_value = 2, },
602 {.center_freq = 2422, .hw_value = 3, },
603 {.center_freq = 2427, .hw_value = 4, },
604 {.center_freq = 2432, .hw_value = 5, },
605 {.center_freq = 2437, .hw_value = 6, },
606 {.center_freq = 2442, .hw_value = 7, },
607 {.center_freq = 2447, .hw_value = 8, },
608 {.center_freq = 2452, .hw_value = 9, },
609 {.center_freq = 2457, .hw_value = 10, },
610 {.center_freq = 2462, .hw_value = 11, },
611 {.center_freq = 2467, .hw_value = 12, },
612 {.center_freq = 2472, .hw_value = 13, },
613 {.center_freq = 2484, .hw_value = 14, },
614};
615
616static struct ieee80211_supported_band mwifiex_band_2ghz = {
617 .channels = mwifiex_channels_2ghz,
618 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
619 .bitrates = mwifiex_rates,
620 .n_bitrates = 14,
621};
622
623static struct ieee80211_channel mwifiex_channels_5ghz[] = {
624 {.center_freq = 5040, .hw_value = 8, },
625 {.center_freq = 5060, .hw_value = 12, },
626 {.center_freq = 5080, .hw_value = 16, },
627 {.center_freq = 5170, .hw_value = 34, },
628 {.center_freq = 5190, .hw_value = 38, },
629 {.center_freq = 5210, .hw_value = 42, },
630 {.center_freq = 5230, .hw_value = 46, },
631 {.center_freq = 5180, .hw_value = 36, },
632 {.center_freq = 5200, .hw_value = 40, },
633 {.center_freq = 5220, .hw_value = 44, },
634 {.center_freq = 5240, .hw_value = 48, },
635 {.center_freq = 5260, .hw_value = 52, },
636 {.center_freq = 5280, .hw_value = 56, },
637 {.center_freq = 5300, .hw_value = 60, },
638 {.center_freq = 5320, .hw_value = 64, },
639 {.center_freq = 5500, .hw_value = 100, },
640 {.center_freq = 5520, .hw_value = 104, },
641 {.center_freq = 5540, .hw_value = 108, },
642 {.center_freq = 5560, .hw_value = 112, },
643 {.center_freq = 5580, .hw_value = 116, },
644 {.center_freq = 5600, .hw_value = 120, },
645 {.center_freq = 5620, .hw_value = 124, },
646 {.center_freq = 5640, .hw_value = 128, },
647 {.center_freq = 5660, .hw_value = 132, },
648 {.center_freq = 5680, .hw_value = 136, },
649 {.center_freq = 5700, .hw_value = 140, },
650 {.center_freq = 5745, .hw_value = 149, },
651 {.center_freq = 5765, .hw_value = 153, },
652 {.center_freq = 5785, .hw_value = 157, },
653 {.center_freq = 5805, .hw_value = 161, },
654 {.center_freq = 5825, .hw_value = 165, },
655};
656
657static struct ieee80211_supported_band mwifiex_band_5ghz = {
658 .channels = mwifiex_channels_5ghz,
659 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
660 .bitrates = mwifiex_rates - 4,
661 .n_bitrates = ARRAY_SIZE(mwifiex_rates) + 4,
662};
663
664
665/* Supported crypto cipher suits to be advertised to cfg80211 */
666
667static const u32 mwifiex_cipher_suites[] = {
668 WLAN_CIPHER_SUITE_WEP40,
669 WLAN_CIPHER_SUITE_WEP104,
670 WLAN_CIPHER_SUITE_TKIP,
671 WLAN_CIPHER_SUITE_CCMP,
672};
673
5d82c53a
YAP		 674/*
675 * CFG802.11 operation handler for setting bit rates.
676 *
677 * Function selects legacy bang B/G/BG from corresponding bitrates selection.
678 * Currently only 2.4GHz band is supported.
679 */
680static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
681 struct net_device *dev,
682 const u8 *peer,
683 const struct cfg80211_bitrate_mask *mask)
684{
685 struct mwifiex_ds_band_cfg band_cfg;
686 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
687 int index = 0, mode = 0, i;
688
689 /* Currently only 2.4GHz is supported */
690 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
691 /*
692 * Rates below 6 Mbps in the table are CCK rates; 802.11b
693 * and from 6 they are OFDM; 802.11G
694 */
695 if (mwifiex_rates[i].bitrate == 60) {
696 index = 1 << i;
697 break;
698 }
699 }
700
701 if (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {
702 mode = BAND_B;
703 } else {
704 mode = BAND_G;
705 if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)
706 mode |= BAND_B;
707 }
708
709 memset(&band_cfg, 0, sizeof(band_cfg));
710 band_cfg.config_bands = mode;
711
712 if (priv->bss_mode == NL80211_IFTYPE_ADHOC)
713 band_cfg.adhoc_start_band = mode;
714
715 band_cfg.sec_chan_offset = NO_SEC_CHANNEL;
716
717 if (mwifiex_set_radio_band_cfg(priv, &band_cfg))
718 return -EFAULT;
719
720 wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",
721 (mode & BAND_B) ? "b" : "",
722 (mode & BAND_G) ? "g" : "");
723
724 return 0;
725}
726
5e6e3a92
BZ		 727/*
728 * CFG802.11 operation handler for disconnection request.
729 *
730 * This function does not work when there is already a disconnection
731 * procedure going on.
732 */
733static int
734mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
735 u16 reason_code)
736{
737 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
738
739 if (priv->disconnect)
740 return -EBUSY;
741
742 priv->disconnect = 1;
600f5d90 743 if (mwifiex_deauthenticate(priv, NULL))
5e6e3a92
BZ		 744 return -EFAULT;
745
746 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
747 " reason code %d\n", priv->cfg_bssid, reason_code);
748
749 queue_work(priv->workqueue, &priv->cfg_workqueue);
750
751 return 0;
752}
753
754/*
755 * This function informs the CFG802.11 subsystem of a new IBSS.
756 *
757 * The following information are sent to the CFG802.11 subsystem
758 * to register the new IBSS. If we do not register the new IBSS,
759 * a kernel panic will result.
760 * - SSID
761 * - SSID length
762 * - BSSID
763 * - Channel
764 */
765static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
766{
5e6e3a92
BZ		 767 struct ieee80211_channel *chan;
768 struct mwifiex_bss_info bss_info;
270e58e8 769 int ie_len;
5e6e3a92
BZ		 770 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
771
636c4598
YAP		 772 if (mwifiex_get_bss_info(priv, &bss_info))
773 return -1;
5e6e3a92
BZ		 774
775 ie_buf[0] = WLAN_EID_SSID;
776 ie_buf[1] = bss_info.ssid.ssid_len;
777
778 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
779 &bss_info.ssid.ssid,
780 bss_info.ssid.ssid_len);
781 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
782
783 chan = __ieee80211_get_channel(priv->wdev->wiphy,
784 ieee80211_channel_to_frequency(bss_info.bss_chan,
785 priv->curr_bss_params.band));
786
787 cfg80211_inform_bss(priv->wdev->wiphy, chan,
788 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
789 0, ie_buf, ie_len, 0, GFP_KERNEL);
790 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
791
636c4598 792 return 0;
5e6e3a92
BZ		 793}
794
795/*
796 * This function informs the CFG802.11 subsystem of a new BSS connection.
797 *
798 * The following information are sent to the CFG802.11 subsystem
799 * to register the new BSS connection. If we do not register the new BSS,
800 * a kernel panic will result.
801 * - MAC address
802 * - Capabilities
803 * - Beacon period
804 * - RSSI value
805 * - Channel
806 * - Supported rates IE
807 * - Extended capabilities IE
808 * - DS parameter set IE
809 * - HT Capability IE
810 * - Vendor Specific IE (221)
811 * - WPA IE
812 * - RSN IE
813 */
814static int mwifiex_inform_bss_from_scan_result(struct mwifiex_private *priv,
815 struct mwifiex_802_11_ssid *ssid)
816{
5e6e3a92
BZ		 817 struct mwifiex_bssdescriptor *scan_table;
818 int i, j;
819 struct ieee80211_channel *chan;
636c4598 820 u8 *ie, *ie_buf;
5e6e3a92 821 u32 ie_len;
5e6e3a92
BZ		 822 u8 *beacon;
823 int beacon_size;
824 u8 element_id, element_len;
825
5e6e3a92
BZ		 826#define MAX_IE_BUF 2048
827 ie_buf = kzalloc(MAX_IE_BUF, GFP_KERNEL);
828 if (!ie_buf) {
829 dev_err(priv->adapter->dev, "%s: failed to alloc ie_buf\n",
830 __func__);
831 return -ENOMEM;
832 }
833
a8c48565
BZ		 834 scan_table = priv->adapter->scan_table;
835 for (i = 0; i < priv->adapter->num_in_scan_table; i++) {
5e6e3a92
BZ		 836 if (ssid) {
837 /* Inform specific BSS only */
838 if (memcmp(ssid->ssid, scan_table[i].ssid.ssid,
839 ssid->ssid_len))
840 continue;
841 }
842 memset(ie_buf, 0, MAX_IE_BUF);
843 ie_buf[0] = WLAN_EID_SSID;
844 ie_buf[1] = scan_table[i].ssid.ssid_len;
845 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
846 scan_table[i].ssid.ssid, ie_buf[1]);
847
848 ie = ie_buf + ie_buf[1] + sizeof(struct ieee_types_header);
849 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
850
851 ie[0] = WLAN_EID_SUPP_RATES;
852
853 for (j = 0; j < sizeof(scan_table[i].supported_rates); j++) {
854 if (!scan_table[i].supported_rates[j])
855 break;
856 else
857 ie[j + sizeof(struct ieee_types_header)] =
858 scan_table[i].supported_rates[j];
859 }
860
861 ie[1] = j;
862 ie_len += ie[1] + sizeof(struct ieee_types_header);
863
864 beacon = scan_table[i].beacon_buf;
865 beacon_size = scan_table[i].beacon_buf_size;
866
867 /* Skip time stamp, beacon interval and capability */
868
869 if (beacon) {
870 beacon += sizeof(scan_table[i].beacon_period)
871 + sizeof(scan_table[i].time_stamp) +
872 +sizeof(scan_table[i].cap_info_bitmap);
873
874 beacon_size -= sizeof(scan_table[i].beacon_period)
875 + sizeof(scan_table[i].time_stamp)
876 + sizeof(scan_table[i].cap_info_bitmap);
877 }
878
879 while (beacon_size >= sizeof(struct ieee_types_header)) {
880 ie = ie_buf + ie_len;
881 element_id = *beacon;
882 element_len = *(beacon + 1);
883 if (beacon_size < (int) element_len +
884 sizeof(struct ieee_types_header)) {
885 dev_err(priv->adapter->dev, "%s: in processing"
886 " IE, bytes left < IE length\n",
887 __func__);
888 break;
889 }
890 switch (element_id) {
891 case WLAN_EID_EXT_CAPABILITY:
892 case WLAN_EID_DS_PARAMS:
893 case WLAN_EID_HT_CAPABILITY:
894 case WLAN_EID_VENDOR_SPECIFIC:
895 case WLAN_EID_RSN:
896 case WLAN_EID_BSS_AC_ACCESS_DELAY:
897 ie[0] = element_id;
898 ie[1] = element_len;
5e6e3a92 899 memcpy(&ie[sizeof(struct ieee_types_header)],
636c4598
YAP		 900 (u8 *) beacon
901 + sizeof(struct ieee_types_header),
5e6e3a92
BZ		 902 element_len);
903 ie_len += ie[1] +
904 sizeof(struct ieee_types_header);
905 break;
906 default:
907 break;
908 }
909 beacon += element_len +
910 sizeof(struct ieee_types_header);
911 beacon_size -= element_len +
912 sizeof(struct ieee_types_header);
913 }
914 chan = ieee80211_get_channel(priv->wdev->wiphy,
915 scan_table[i].freq);
916 cfg80211_inform_bss(priv->wdev->wiphy, chan,
917 scan_table[i].mac_address,
636c4598 918 0, scan_table[i].cap_info_bitmap,
5e6e3a92
BZ		 919 scan_table[i].beacon_period,
920 ie_buf, ie_len,
921 scan_table[i].rssi, GFP_KERNEL);
922 }
923
924 kfree(ie_buf);
925 return 0;
926}
927
928/*
929 * This function connects with a BSS.
930 *
931 * This function handles both Infra and Ad-Hoc modes. It also performs
932 * validity checking on the provided parameters, disconnects from the
933 * current BSS (if any), sets up the association/scan parameters,
934 * including security settings, and performs specific SSID scan before
935 * trying to connect.
936 *
937 * For Infra mode, the function returns failure if the specified SSID
938 * is not found in scan table. However, for Ad-Hoc mode, it can create
939 * the IBSS if it does not exist. On successful completion in either case,
940 * the function notifies the CFG802.11 subsystem of the new BSS connection,
941 * otherwise the kernel will panic.
942 */
943static int
944mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
945 u8 *bssid, int mode, struct ieee80211_channel *channel,
946 struct cfg80211_connect_params *sme, bool privacy)
947{
948 struct mwifiex_802_11_ssid req_ssid;
949 struct mwifiex_ssid_bssid ssid_bssid;
270e58e8 950 int ret, auth_type = 0;
5e6e3a92
BZ		 951
952 memset(&req_ssid, 0, sizeof(struct mwifiex_802_11_ssid));
953 memset(&ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid));
954
955 req_ssid.ssid_len = ssid_len;
956 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
957 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
958 return -EINVAL;
959 }
960
961 memcpy(req_ssid.ssid, ssid, ssid_len);
962 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
963 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
964 return -EINVAL;
965 }
966
967 /* disconnect before try to associate */
600f5d90 968 mwifiex_deauthenticate(priv, NULL);
5e6e3a92
BZ		 969
970 if (channel)
971 ret = mwifiex_set_rf_channel(priv, channel,
972 mwifiex_channels_to_cfg80211_channel_type
973 (priv->adapter->chan_offset));
974
975 ret = mwifiex_set_encode(priv, NULL, 0, 0, 1); /* Disable keys */
976
eecd8250 977 if (mode == NL80211_IFTYPE_ADHOC) {
5e6e3a92
BZ		 978 /* "privacy" is set only for ad-hoc mode */
979 if (privacy) {
980 /*
2be50b8d 981 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
5e6e3a92
BZ		 982 * the firmware can find a matching network from the
983 * scan. The cfg80211 does not give us the encryption
984 * mode at this stage so just setting it to WEP here.
985 */
203afeca 986 priv->sec_info.encryption_mode =
2be50b8d 987 WLAN_CIPHER_SUITE_WEP104;
203afeca 988 priv->sec_info.authentication_mode =
f986b6d5 989 NL80211_AUTHTYPE_OPEN_SYSTEM;
5e6e3a92
BZ		 990 }
991
992 goto done;
993 }
994
995 /* Now handle infra mode. "sme" is valid for infra mode only */
996 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC
997 || sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
f986b6d5 998 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
5e6e3a92 999 else if (sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY)
f986b6d5 1000 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
5e6e3a92
BZ		 1001
1002 if (sme->crypto.n_ciphers_pairwise) {
2be50b8d
YAP		 1003 priv->sec_info.encryption_mode =
1004 sme->crypto.ciphers_pairwise[0];
203afeca 1005 priv->sec_info.authentication_mode = auth_type;
5e6e3a92
BZ		 1006 }
1007
1008 if (sme->crypto.cipher_group) {
2be50b8d 1009 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
203afeca 1010 priv->sec_info.authentication_mode = auth_type;
5e6e3a92
BZ		 1011 }
1012 if (sme->ie)
1013 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1014
1015 if (sme->key) {
e6faada5 1016 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
5e6e3a92
BZ		 1017 dev_dbg(priv->adapter->dev,
1018 "info: setting wep encryption"
1019 " with key len %d\n", sme->key_len);
1020 ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
1021 sme->key_idx, 0);
1022 }
1023 }
1024done:
1025 /* Do specific SSID scanning */
600f5d90 1026 if (mwifiex_request_scan(priv, &req_ssid)) {
5e6e3a92
BZ		 1027 dev_err(priv->adapter->dev, "scan error\n");
1028 return -EFAULT;
1029 }
1030
1031
1032 memcpy(&ssid_bssid.ssid, &req_ssid, sizeof(struct mwifiex_802_11_ssid));
1033
eecd8250 1034 if (mode != NL80211_IFTYPE_ADHOC) {
600f5d90 1035 if (mwifiex_find_best_bss(priv, &ssid_bssid))
5e6e3a92
BZ		 1036 return -EFAULT;
1037 /* Inform the BSS information to kernel, otherwise
1038 * kernel will give a panic after successful assoc */
1039 if (mwifiex_inform_bss_from_scan_result(priv, &req_ssid))
1040 return -EFAULT;
1041 }
1042
1043 dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n",
1044 (char *) req_ssid.ssid, ssid_bssid.bssid);
1045
1046 memcpy(&priv->cfg_bssid, ssid_bssid.bssid, 6);
1047
1048 /* Connect to BSS by ESSID */
1049 memset(&ssid_bssid.bssid, 0, ETH_ALEN);
1050
600f5d90
AK		 1051 if (!netif_queue_stopped(priv->netdev))
1052 netif_stop_queue(priv->netdev);
1053
1054 if (mwifiex_bss_start(priv, &ssid_bssid))
5e6e3a92
BZ		 1055 return -EFAULT;
1056
eecd8250 1057 if (mode == NL80211_IFTYPE_ADHOC) {
5e6e3a92
BZ		 1058 /* Inform the BSS information to kernel, otherwise
1059 * kernel will give a panic after successful assoc */
1060 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1061 return -EFAULT;
1062 }
1063
1064 return ret;
1065}
1066
1067/*
1068 * CFG802.11 operation handler for association request.
1069 *
1070 * This function does not work when the current mode is set to Ad-Hoc, or
1071 * when there is already an association procedure going on. The given BSS
1072 * information is used to associate.
1073 */
1074static int
1075mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1076 struct cfg80211_connect_params *sme)
1077{
1078 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1079 int ret = 0;
5e6e3a92
BZ		 1080
1081 if (priv->assoc_request)
1082 return -EBUSY;
1083
eecd8250 1084 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
5e6e3a92
BZ		 1085 wiphy_err(wiphy, "received infra assoc request "
1086 "when station is in ibss mode\n");
1087 goto done;
1088 }
1089
57f16b5d 1090 priv->assoc_request = -EINPROGRESS;
5e6e3a92
BZ		 1091
1092 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1093 (char *) sme->ssid, sme->bssid);
1094
1095 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
eecd8250 1096 priv->bss_mode, sme->channel, sme, 0);
5e6e3a92 1097
57f16b5d 1098 priv->assoc_request = 1;
5e6e3a92
BZ		 1099done:
1100 priv->assoc_result = ret;
1101 queue_work(priv->workqueue, &priv->cfg_workqueue);
1102 return ret;
1103}
1104
1105/*
1106 * CFG802.11 operation handler to join an IBSS.
1107 *
1108 * This function does not work in any mode other than Ad-Hoc, or if
1109 * a join operation is already in progress.
1110 */
1111static int
1112mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1113 struct cfg80211_ibss_params *params)
1114{
1115 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
1116 int ret = 0;
5e6e3a92
BZ		 1117
1118 if (priv->ibss_join_request)
1119 return -EBUSY;
1120
eecd8250 1121 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
5e6e3a92
BZ		 1122 wiphy_err(wiphy, "request to join ibss received "
1123 "when station is not in ibss mode\n");
1124 goto done;
1125 }
1126
57f16b5d 1127 priv->ibss_join_request = -EINPROGRESS;
5e6e3a92
BZ		 1128
1129 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1130 (char *) params->ssid, params->bssid);
1131
1132 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
eecd8250
BZ		 1133 params->bssid, priv->bss_mode,
1134 params->channel, NULL, params->privacy);
57f16b5d
AK		 1135
1136 priv->ibss_join_request = 1;
5e6e3a92
BZ		 1137done:
1138 priv->ibss_join_result = ret;
1139 queue_work(priv->workqueue, &priv->cfg_workqueue);
1140 return ret;
1141}
1142
1143/*
1144 * CFG802.11 operation handler to leave an IBSS.
1145 *
1146 * This function does not work if a leave operation is
1147 * already in progress.
1148 */
1149static int
1150mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1151{
1152 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
1153
1154 if (priv->disconnect)
1155 return -EBUSY;
1156
1157 priv->disconnect = 1;
1158
1159 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1160 priv->cfg_bssid);
600f5d90 1161 if (mwifiex_deauthenticate(priv, NULL))
5e6e3a92
BZ		 1162 return -EFAULT;
1163
1164 queue_work(priv->workqueue, &priv->cfg_workqueue);
1165
1166 return 0;
1167}
1168
1169/*
1170 * CFG802.11 operation handler for scan request.
1171 *
1172 * This function issues a scan request to the firmware based upon
1173 * the user specified scan configuration. On successfull completion,
1174 * it also informs the results.
1175 */
1176static int
1177mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
1178 struct cfg80211_scan_request *request)
1179{
1180 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1181
1182 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1183
1184 if (priv->scan_request && priv->scan_request != request)
1185 return -EBUSY;
1186
1187 priv->scan_request = request;
1188
1189 queue_work(priv->workqueue, &priv->cfg_workqueue);
1190 return 0;
1191}
1192
1193/*
1194 * This function sets up the CFG802.11 specific HT capability fields
1195 * with default values.
1196 *
1197 * The following default values are set -
1198 * - HT Supported = True
a46b7b5c
AK		 1199 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1200 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1201 * - HT Capabilities supported by firmware
5e6e3a92
BZ		 1202 * - MCS information, Rx mask = 0xff
1203 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1204 */
1205static void
1206mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1207 struct mwifiex_private *priv)
1208{
1209 int rx_mcs_supp;
1210 struct ieee80211_mcs_info mcs_set;
1211 u8 *mcs = (u8 *)&mcs_set;
1212 struct mwifiex_adapter *adapter = priv->adapter;
1213
1214 ht_info->ht_supported = true;
a46b7b5c
AK		 1215 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1216 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
5e6e3a92
BZ		 1217
1218 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
5e6e3a92 1219
a46b7b5c
AK		 1220 /* Fill HT capability information */
1221 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1222 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1223 else
1224 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1225
1226 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1227 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1228 else
1229 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1230
1231 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1232 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1233 else
1234 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1235
1236 if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1237 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1238 else
1239 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1240
1241 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1242 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1243 else
1244 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1245
1246 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1247 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1248
1249 rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
5e6e3a92
BZ		 1250 /* Set MCS for 1x1 */
1251 memset(mcs, 0xff, rx_mcs_supp);
1252 /* Clear all the other values */
1253 memset(&mcs[rx_mcs_supp], 0,
1254 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
eecd8250 1255 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
6d2bd916 1256 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
5e6e3a92
BZ		 1257 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1258 SETHT_MCS32(mcs_set.rx_mask);
1259
1260 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1261
1262 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1263}
1264
1265/* station cfg80211 operations */
1266static struct cfg80211_ops mwifiex_cfg80211_ops = {
1267 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
1268 .scan = mwifiex_cfg80211_scan,
1269 .connect = mwifiex_cfg80211_connect,
1270 .disconnect = mwifiex_cfg80211_disconnect,
1271 .get_station = mwifiex_cfg80211_get_station,
1272 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
1273 .set_channel = mwifiex_cfg80211_set_channel,
1274 .join_ibss = mwifiex_cfg80211_join_ibss,
1275 .leave_ibss = mwifiex_cfg80211_leave_ibss,
1276 .add_key = mwifiex_cfg80211_add_key,
1277 .del_key = mwifiex_cfg80211_del_key,
1278 .set_default_key = mwifiex_cfg80211_set_default_key,
1279 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
1280 .set_tx_power = mwifiex_cfg80211_set_tx_power,
5d82c53a 1281 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
5e6e3a92
BZ		 1282};
1283
1284/*
1285 * This function registers the device with CFG802.11 subsystem.
1286 *
1287 * The function creates the wireless device/wiphy, populates it with
1288 * default parameters and handler function pointers, and finally
1289 * registers the device.
1290 */
1291int mwifiex_register_cfg80211(struct net_device *dev, u8 *mac,
1292 struct mwifiex_private *priv)
1293{
270e58e8
YAP		 1294 int ret;
1295 void *wdev_priv;
5e6e3a92
BZ		 1296 struct wireless_dev *wdev;
1297
1298 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1299 if (!wdev) {
1300 dev_err(priv->adapter->dev, "%s: allocating wireless device\n",
1301 __func__);
1302 return -ENOMEM;
1303 }
1304 wdev->wiphy =
1305 wiphy_new(&mwifiex_cfg80211_ops,
1306 sizeof(struct mwifiex_private *));
b53575ec
CF		 1307 if (!wdev->wiphy) {
1308 kfree(wdev);
5e6e3a92 1309 return -ENOMEM;
b53575ec 1310 }
5e6e3a92
BZ		 1311 wdev->iftype = NL80211_IFTYPE_STATION;
1312 wdev->wiphy->max_scan_ssids = 10;
1313 wdev->wiphy->interface_modes =
1314 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
adc89595 1315
5e6e3a92 1316 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
adc89595
AK		 1317 mwifiex_setup_ht_caps(
1318 &wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
1319
1320 if (priv->adapter->config_bands & BAND_A) {
1321 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
1322 mwifiex_setup_ht_caps(
1323 &wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
1324 } else {
1325 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1326 }
5e6e3a92
BZ		 1327
1328 /* Initialize cipher suits */
1329 wdev->wiphy->cipher_suites = mwifiex_cipher_suites;
1330 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
1331
5e6e3a92
BZ		 1332 memcpy(wdev->wiphy->perm_addr, mac, 6);
1333 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1334
1335 /* We are using custom domains */
1336 wdev->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1337
1338 wdev->wiphy->reg_notifier = mwifiex_reg_notifier;
1339
1340 /* Set struct mwifiex_private pointer in wiphy_priv */
1341 wdev_priv = wiphy_priv(wdev->wiphy);
1342
1343 *(unsigned long *) wdev_priv = (unsigned long) priv;
1344
a7b21165
YAP		 1345 set_wiphy_dev(wdev->wiphy, (struct device *) priv->adapter->dev);
1346
5e6e3a92
BZ		 1347 ret = wiphy_register(wdev->wiphy);
1348 if (ret < 0) {
1349 dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",
1350 __func__);
1351 wiphy_free(wdev->wiphy);
b53575ec 1352 kfree(wdev);
5e6e3a92
BZ		 1353 return ret;
1354 } else {
1355 dev_dbg(priv->adapter->dev,
1356 "info: successfully registered wiphy device\n");
1357 }
1358
1359 dev_net_set(dev, wiphy_net(wdev->wiphy));
1360 dev->ieee80211_ptr = wdev;
1361 memcpy(dev->dev_addr, wdev->wiphy->perm_addr, 6);
1362 memcpy(dev->perm_addr, wdev->wiphy->perm_addr, 6);
1363 SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy));
1364 priv->wdev = wdev;
1365
1366 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1367 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
1368 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
1369
1370 return ret;
1371}
1372
1373/*
1374 * This function handles the result of different pending network operations.
1375 *
1376 * The following operations are handled and CFG802.11 subsystem is
1377 * notified accordingly -
1378 * - Scan request completion
1379 * - Association request completion
1380 * - IBSS join request completion
1381 * - Disconnect request completion
1382 */
1383void
1384mwifiex_cfg80211_results(struct work_struct *work)
1385{
1386 struct mwifiex_private *priv =
1387 container_of(work, struct mwifiex_private, cfg_workqueue);
1388 struct mwifiex_user_scan_cfg *scan_req;
1389 int ret = 0, i;
1390 struct ieee80211_channel *chan;
1391
1392 if (priv->scan_request) {
1393 scan_req = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1394 GFP_KERNEL);
1395 if (!scan_req) {
1396 dev_err(priv->adapter->dev, "failed to alloc "
1397 "scan_req\n");
1398 return;
1399 }
1400 for (i = 0; i < priv->scan_request->n_ssids; i++) {
1401 memcpy(scan_req->ssid_list[i].ssid,
1402 priv->scan_request->ssids[i].ssid,
1403 priv->scan_request->ssids[i].ssid_len);
1404 scan_req->ssid_list[i].max_len =
1405 priv->scan_request->ssids[i].ssid_len;
1406 }
1407 for (i = 0; i < priv->scan_request->n_channels; i++) {
1408 chan = priv->scan_request->channels[i];
1409 scan_req->chan_list[i].chan_number = chan->hw_value;
1410 scan_req->chan_list[i].radio_type = chan->band;
1411 if (chan->flags & IEEE80211_CHAN_DISABLED)
1412 scan_req->chan_list[i].scan_type =
1413 MWIFIEX_SCAN_TYPE_PASSIVE;
1414 else
1415 scan_req->chan_list[i].scan_type =
1416 MWIFIEX_SCAN_TYPE_ACTIVE;
1417 scan_req->chan_list[i].scan_time = 0;
1418 }
1419 if (mwifiex_set_user_scan_ioctl(priv, scan_req)) {
1420 ret = -EFAULT;
1421 goto done;
1422 }
1423 if (mwifiex_inform_bss_from_scan_result(priv, NULL))
1424 ret = -EFAULT;
1425done:
1426 priv->scan_result_status = ret;
1427 dev_dbg(priv->adapter->dev, "info: %s: sending scan results\n",
1428 __func__);
1429 cfg80211_scan_done(priv->scan_request,
1430 (priv->scan_result_status < 0));
1431 priv->scan_request = NULL;
1432 kfree(scan_req);
1433 }
1434
57f16b5d 1435 if (priv->assoc_request == 1) {
5e6e3a92
BZ		 1436 if (!priv->assoc_result) {
1437 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1438 NULL, 0, NULL, 0,
1439 WLAN_STATUS_SUCCESS,
1440 GFP_KERNEL);
1441 dev_dbg(priv->adapter->dev,
1442 "info: associated to bssid %pM successfully\n",
1443 priv->cfg_bssid);
1444 } else {
1445 dev_dbg(priv->adapter->dev,
1446 "info: association to bssid %pM failed\n",
1447 priv->cfg_bssid);
1448 memset(priv->cfg_bssid, 0, ETH_ALEN);
1449 }
1450 priv->assoc_request = 0;
1451 priv->assoc_result = 0;
1452 }
1453
57f16b5d 1454 if (priv->ibss_join_request == 1) {
5e6e3a92
BZ		 1455 if (!priv->ibss_join_result) {
1456 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1457 GFP_KERNEL);
1458 dev_dbg(priv->adapter->dev,
1459 "info: joined/created adhoc network with bssid"
1460 " %pM successfully\n", priv->cfg_bssid);
1461 } else {
1462 dev_dbg(priv->adapter->dev,
1463 "info: failed creating/joining adhoc network\n");
1464 }
1465 priv->ibss_join_request = 0;
1466 priv->ibss_join_result = 0;
1467 }
1468
1469 if (priv->disconnect) {
1470 memset(priv->cfg_bssid, 0, ETH_ALEN);
1471 priv->disconnect = 0;
1472 }
5e6e3a92 1473}
Linux kernel - Deliverables
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