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mwifiex: support STATION_INFO_SIGNAL_AVG
[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 -
21c3ba34
AK		 27 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
28 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
29 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
30 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
31 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
5e6e3a92 32 */
21c3ba34
AK		 33static u8
34mwifiex_cfg80211_channel_type_to_sec_chan_offset(enum nl80211_channel_type
35 channel_type)
5e6e3a92 36{
5e6e3a92
BZ		 37 switch (channel_type) {
38 case NL80211_CHAN_NO_HT:
39 case NL80211_CHAN_HT20:
21c3ba34 40 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
5e6e3a92 41 case NL80211_CHAN_HT40PLUS:
21c3ba34 42 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
5e6e3a92 43 case NL80211_CHAN_HT40MINUS:
21c3ba34 44 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
5e6e3a92 45 default:
21c3ba34 46 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
5e6e3a92 47 }
5e6e3a92
BZ		 48}
49
5e6e3a92
BZ		 50/*
51 * This function checks whether WEP is set.
52 */
53static int
54mwifiex_is_alg_wep(u32 cipher)
55{
5e6e3a92 56 switch (cipher) {
2be50b8d
YAP		 57 case WLAN_CIPHER_SUITE_WEP40:
58 case WLAN_CIPHER_SUITE_WEP104:
270e58e8 59 return 1;
5e6e3a92 60 default:
5e6e3a92
BZ		 61 break;
62 }
270e58e8
YAP		 63
64 return 0;
5e6e3a92
BZ		 65}
66
5e6e3a92
BZ		 67/*
68 * This function retrieves the private structure from kernel wiphy structure.
69 */
70static void *mwifiex_cfg80211_get_priv(struct wiphy *wiphy)
71{
72 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
73}
74
75/*
76 * CFG802.11 operation handler to delete a network key.
77 */
78static int
79mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
80 u8 key_index, bool pairwise, const u8 *mac_addr)
81{
f540f9f3 82 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
5e6e3a92 83
636c4598 84 if (mwifiex_set_encode(priv, NULL, 0, key_index, 1)) {
5e6e3a92
BZ		 85 wiphy_err(wiphy, "deleting the crypto keys\n");
86 return -EFAULT;
87 }
88
89 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
90 return 0;
91}
92
93/*
94 * CFG802.11 operation handler to set Tx power.
95 */
96static int
97mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
98 enum nl80211_tx_power_setting type,
742c29fd 99 int mbm)
5e6e3a92 100{
5e6e3a92 101 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
600f5d90 102 struct mwifiex_power_cfg power_cfg;
742c29fd 103 int dbm = MBM_TO_DBM(mbm);
5e6e3a92 104
600f5d90
AK		 105 if (type == NL80211_TX_POWER_FIXED) {
106 power_cfg.is_power_auto = 0;
107 power_cfg.power_level = dbm;
108 } else {
109 power_cfg.is_power_auto = 1;
110 }
111
636c4598 112 return mwifiex_set_tx_power(priv, &power_cfg);
5e6e3a92
BZ		 113}
114
115/*
116 * CFG802.11 operation handler to set Power Save option.
117 *
118 * The timeout value, if provided, is currently ignored.
119 */
120static int
121mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
122 struct net_device *dev,
123 bool enabled, int timeout)
124{
f540f9f3 125 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
600f5d90 126 u32 ps_mode;
5e6e3a92
BZ		 127
128 if (timeout)
129 wiphy_dbg(wiphy,
aea0701e 130 "info: ignore timeout value for IEEE Power Save\n");
5e6e3a92 131
600f5d90 132 ps_mode = enabled;
5e6e3a92 133
636c4598 134 return mwifiex_drv_set_power(priv, &ps_mode);
5e6e3a92
BZ		 135}
136
137/*
138 * CFG802.11 operation handler to set the default network key.
139 */
140static int
141mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
142 u8 key_index, bool unicast,
143 bool multicast)
144{
f540f9f3 145 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
5e6e3a92 146
2d3d0a88 147 /* Return if WEP key not configured */
5eb02e44 148 if (!priv->sec_info.wep_enabled)
2d3d0a88
AK		 149 return 0;
150
636c4598
YAP		 151 if (mwifiex_set_encode(priv, NULL, 0, key_index, 0)) {
152 wiphy_err(wiphy, "set default Tx key index\n");
5e6e3a92 153 return -EFAULT;
636c4598 154 }
5e6e3a92
BZ		 155
156 return 0;
157}
158
159/*
160 * CFG802.11 operation handler to add a network key.
161 */
162static int
163mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
164 u8 key_index, bool pairwise, const u8 *mac_addr,
165 struct key_params *params)
166{
f540f9f3 167 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
5e6e3a92 168
636c4598 169 if (mwifiex_set_encode(priv, params->key, params->key_len,
aea0701e 170 key_index, 0)) {
636c4598 171 wiphy_err(wiphy, "crypto keys added\n");
5e6e3a92 172 return -EFAULT;
636c4598 173 }
5e6e3a92
BZ		 174
175 return 0;
176}
177
178/*
179 * This function sends domain information to the firmware.
180 *
181 * The following information are passed to the firmware -
182 * - Country codes
183 * - Sub bands (first channel, number of channels, maximum Tx power)
184 */
185static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
186{
187 u8 no_of_triplet = 0;
188 struct ieee80211_country_ie_triplet *t;
189 u8 no_of_parsed_chan = 0;
190 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
191 u8 i, flag = 0;
192 enum ieee80211_band band;
193 struct ieee80211_supported_band *sband;
194 struct ieee80211_channel *ch;
195 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
196 struct mwifiex_adapter *adapter = priv->adapter;
197 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
5e6e3a92
BZ		 198
199 /* Set country code */
200 domain_info->country_code[0] = priv->country_code[0];
201 domain_info->country_code[1] = priv->country_code[1];
202 domain_info->country_code[2] = ' ';
203
204 band = mwifiex_band_to_radio_type(adapter->config_bands);
205 if (!wiphy->bands[band]) {
206 wiphy_err(wiphy, "11D: setting domain info in FW\n");
207 return -1;
208 }
209
210 sband = wiphy->bands[band];
211
212 for (i = 0; i < sband->n_channels ; i++) {
213 ch = &sband->channels[i];
214 if (ch->flags & IEEE80211_CHAN_DISABLED)
215 continue;
216
217 if (!flag) {
218 flag = 1;
219 first_chan = (u32) ch->hw_value;
220 next_chan = first_chan;
221 max_pwr = ch->max_power;
222 no_of_parsed_chan = 1;
223 continue;
224 }
225
226 if (ch->hw_value == next_chan + 1 &&
aea0701e 227 ch->max_power == max_pwr) {
5e6e3a92
BZ		 228 next_chan++;
229 no_of_parsed_chan++;
230 } else {
231 t = &domain_info->triplet[no_of_triplet];
232 t->chans.first_channel = first_chan;
233 t->chans.num_channels = no_of_parsed_chan;
234 t->chans.max_power = max_pwr;
235 no_of_triplet++;
236 first_chan = (u32) ch->hw_value;
237 next_chan = first_chan;
238 max_pwr = ch->max_power;
239 no_of_parsed_chan = 1;
240 }
241 }
242
243 if (flag) {
244 t = &domain_info->triplet[no_of_triplet];
245 t->chans.first_channel = first_chan;
246 t->chans.num_channels = no_of_parsed_chan;
247 t->chans.max_power = max_pwr;
248 no_of_triplet++;
249 }
250
251 domain_info->no_of_triplet = no_of_triplet;
636c4598
YAP		 252
253 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
aea0701e 254 HostCmd_ACT_GEN_SET, 0, NULL)) {
5e6e3a92 255 wiphy_err(wiphy, "11D: setting domain info in FW\n");
636c4598
YAP		 256 return -1;
257 }
5e6e3a92 258
636c4598 259 return 0;
5e6e3a92
BZ		 260}
261
262/*
263 * CFG802.11 regulatory domain callback function.
264 *
265 * This function is called when the regulatory domain is changed due to the
266 * following reasons -
267 * - Set by driver
268 * - Set by system core
269 * - Set by user
270 * - Set bt Country IE
271 */
272static int mwifiex_reg_notifier(struct wiphy *wiphy,
aea0701e 273 struct regulatory_request *request)
5e6e3a92
BZ		 274{
275 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
276
277 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for domain"
278 " %c%c\n", request->alpha2[0], request->alpha2[1]);
279
280 memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
281
282 switch (request->initiator) {
283 case NL80211_REGDOM_SET_BY_DRIVER:
284 case NL80211_REGDOM_SET_BY_CORE:
285 case NL80211_REGDOM_SET_BY_USER:
286 break;
287 /* Todo: apply driver specific changes in channel flags based
288 on the request initiator if necessary. */
289 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
290 break;
291 }
292 mwifiex_send_domain_info_cmd_fw(wiphy);
293
294 return 0;
295}
296
297/*
298 * This function sets the RF channel.
299 *
300 * This function creates multiple IOCTL requests, populates them accordingly
301 * and issues them to set the band/channel and frequency.
302 */
303static int
304mwifiex_set_rf_channel(struct mwifiex_private *priv,
305 struct ieee80211_channel *chan,
306 enum nl80211_channel_type channel_type)
307{
308 struct mwifiex_chan_freq_power cfp;
5e6e3a92
BZ		 309 u32 config_bands = 0;
310 struct wiphy *wiphy = priv->wdev->wiphy;
43906cdb 311 struct mwifiex_adapter *adapter = priv->adapter;
5e6e3a92 312
5e6e3a92 313 if (chan) {
5e6e3a92 314 /* Set appropriate bands */
3aebee02
AK		 315 if (chan->band == IEEE80211_BAND_2GHZ) {
316 if (channel_type == NL80211_CHAN_NO_HT)
317 if (priv->adapter->config_bands == BAND_B ||
aea0701e 318 priv->adapter->config_bands == BAND_G)
3aebee02
AK		 319 config_bands =
320 priv->adapter->config_bands;
321 else
322 config_bands = BAND_B | BAND_G;
323 else
324 config_bands = BAND_B | BAND_G | BAND_GN;
325 } else {
326 if (channel_type == NL80211_CHAN_NO_HT)
327 config_bands = BAND_A;
328 else
329 config_bands = BAND_AN | BAND_A;
330 }
636c4598 331
43906cdb
AK		 332 if (!((config_bands | adapter->fw_bands) &
333 ~adapter->fw_bands)) {
334 adapter->config_bands = config_bands;
335 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
336 adapter->adhoc_start_band = config_bands;
337 if ((config_bands & BAND_GN) ||
aea0701e 338 (config_bands & BAND_AN))
43906cdb
AK		 339 adapter->adhoc_11n_enabled = true;
340 else
341 adapter->adhoc_11n_enabled = false;
342 }
343 }
21c3ba34
AK		 344 adapter->sec_chan_offset =
345 mwifiex_cfg80211_channel_type_to_sec_chan_offset
5e6e3a92 346 (channel_type);
3aebee02 347 adapter->channel_type = channel_type;
5e6e3a92 348
5e6e3a92
BZ		 349 mwifiex_send_domain_info_cmd_fw(wiphy);
350 }
351
aea0701e
YAP		 352 wiphy_dbg(wiphy, "info: setting band %d, chan offset %d, mode %d\n",
353 config_bands, adapter->sec_chan_offset, priv->bss_mode);
5e6e3a92 354 if (!chan)
636c4598 355 return 0;
5e6e3a92
BZ		 356
357 memset(&cfp, 0, sizeof(cfp));
358 cfp.freq = chan->center_freq;
5e6e3a92
BZ		 359 cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
360
636c4598 361 if (mwifiex_bss_set_channel(priv, &cfp))
5e6e3a92
BZ		 362 return -EFAULT;
363
636c4598 364 return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
5e6e3a92
BZ		 365}
366
367/*
368 * CFG802.11 operation handler to set channel.
369 *
370 * This function can only be used when station is not connected.
371 */
372static int
373mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev,
374 struct ieee80211_channel *chan,
375 enum nl80211_channel_type channel_type)
376{
477778bb
AK		 377 struct mwifiex_private *priv;
378
379 if (dev)
380 priv = mwifiex_netdev_get_priv(dev);
381 else
382 priv = mwifiex_cfg80211_get_priv(wiphy);
5e6e3a92
BZ		 383
384 if (priv->media_connected) {
385 wiphy_err(wiphy, "This setting is valid only when station "
386 "is not connected\n");
387 return -EINVAL;
388 }
389
390 return mwifiex_set_rf_channel(priv, chan, channel_type);
391}
392
393/*
394 * This function sets the fragmentation threshold.
395 *
600f5d90 396 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
5e6e3a92
BZ		 397 * and MWIFIEX_FRAG_MAX_VALUE.
398 */
399static int
400mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
401{
270e58e8 402 int ret;
5e6e3a92 403
aea0701e
YAP		 404 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
405 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
5e6e3a92
BZ		 406 return -EINVAL;
407
600f5d90
AK		 408 /* Send request to firmware */
409 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
410 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
411 &frag_thr);
5e6e3a92 412
5e6e3a92
BZ		 413 return ret;
414}
415
416/*
417 * This function sets the RTS threshold.
600f5d90
AK		 418
419 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
420 * and MWIFIEX_RTS_MAX_VALUE.
5e6e3a92
BZ		 421 */
422static int
423mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
424{
5e6e3a92
BZ		 425 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
426 rts_thr = MWIFIEX_RTS_MAX_VALUE;
427
636c4598 428 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
600f5d90
AK		 429 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
430 &rts_thr);
5e6e3a92
BZ		 431}
432
433/*
434 * CFG802.11 operation handler to set wiphy parameters.
435 *
436 * This function can be used to set the RTS threshold and the
437 * Fragmentation threshold of the driver.
438 */
439static int
440mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
441{
442 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
5e6e3a92
BZ		 443 int ret = 0;
444
636c4598 445 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
5e6e3a92 446 ret = mwifiex_set_rts(priv, wiphy->rts_threshold);
636c4598
YAP		 447 if (ret)
448 return ret;
449 }
5e6e3a92
BZ		 450
451 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
452 ret = mwifiex_set_frag(priv, wiphy->frag_threshold);
453
454 return ret;
455}
456
457/*
458 * CFG802.11 operation handler to change interface type.
5e6e3a92
BZ		 459 */
460static int
461mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
462 struct net_device *dev,
463 enum nl80211_iftype type, u32 *flags,
464 struct vif_params *params)
465{
270e58e8 466 int ret;
5e6e3a92 467 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
5e6e3a92 468
eecd8250
BZ		 469 if (priv->bss_mode == type) {
470 wiphy_warn(wiphy, "already set to required type\n");
471 return 0;
472 }
473
474 priv->bss_mode = type;
5e6e3a92
BZ		 475
476 switch (type) {
477 case NL80211_IFTYPE_ADHOC:
5e6e3a92
BZ		 478 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC;
479 wiphy_dbg(wiphy, "info: setting interface type to adhoc\n");
480 break;
481 case NL80211_IFTYPE_STATION:
5e6e3a92 482 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
eecd8250 483 wiphy_dbg(wiphy, "info: setting interface type to managed\n");
5e6e3a92
BZ		 484 break;
485 case NL80211_IFTYPE_UNSPECIFIED:
5e6e3a92
BZ		 486 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
487 wiphy_dbg(wiphy, "info: setting interface type to auto\n");
eecd8250 488 return 0;
5e6e3a92 489 default:
eecd8250
BZ		 490 wiphy_err(wiphy, "unknown interface type: %d\n", type);
491 return -EINVAL;
5e6e3a92 492 }
5e6e3a92 493
600f5d90 494 mwifiex_deauthenticate(priv, NULL);
eecd8250 495
f986b6d5 496 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
eecd8250 497
600f5d90
AK		 498 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
499 HostCmd_ACT_GEN_SET, 0, NULL);
eecd8250 500
5e6e3a92
BZ		 501 return ret;
502}
503
504/*
505 * This function dumps the station information on a buffer.
506 *
507 * The following information are shown -
508 * - Total bytes transmitted
509 * - Total bytes received
510 * - Total packets transmitted
511 * - Total packets received
512 * - Signal quality level
513 * - Transmission rate
514 */
515static int
516mwifiex_dump_station_info(struct mwifiex_private *priv,
517 struct station_info *sinfo)
518{
5e6e3a92 519 struct mwifiex_rate_cfg rate;
5e6e3a92
BZ		 520
521 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
7013d3e2
AK		 522 STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
523 STATION_INFO_TX_BITRATE |
524 STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
5e6e3a92
BZ		 525
526 /* Get signal information from the firmware */
958a4a86
AK		 527 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
528 HostCmd_ACT_GEN_GET, 0, NULL)) {
529 dev_err(priv->adapter->dev, "failed to get signal information\n");
530 return -EFAULT;
5e6e3a92
BZ		 531 }
532
533 if (mwifiex_drv_get_data_rate(priv, &rate)) {
534 dev_err(priv->adapter->dev, "getting data rate\n");
958a4a86 535 return -EFAULT;
5e6e3a92
BZ		 536 }
537
caf60a6c
AK		 538 /* Get DTIM period information from firmware */
539 mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
540 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
541 &priv->dtim_period);
542
4ec6f9c0
AK		 543 /*
544 * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
545 * MCS index values for us are 0 to 7.
546 */
547 if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 8)) {
548 sinfo->txrate.mcs = priv->tx_rate;
549 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
550 /* 40MHz rate */
551 if (priv->tx_htinfo & BIT(1))
552 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
553 /* SGI enabled */
554 if (priv->tx_htinfo & BIT(2))
555 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
556 }
557
7013d3e2 558 sinfo->signal_avg = priv->bcn_rssi_avg;
5e6e3a92
BZ		 559 sinfo->rx_bytes = priv->stats.rx_bytes;
560 sinfo->tx_bytes = priv->stats.tx_bytes;
561 sinfo->rx_packets = priv->stats.rx_packets;
562 sinfo->tx_packets = priv->stats.tx_packets;
958a4a86 563 sinfo->signal = priv->bcn_rssi_avg;
4ec6f9c0
AK		 564 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
565 sinfo->txrate.legacy = rate.rate * 5;
5e6e3a92 566
c4f3b972
AK		 567 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
568 sinfo->filled |= STATION_INFO_BSS_PARAM;
569 sinfo->bss_param.flags = 0;
570 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
571 WLAN_CAPABILITY_SHORT_PREAMBLE)
572 sinfo->bss_param.flags |=
573 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
574 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
575 WLAN_CAPABILITY_SHORT_SLOT_TIME)
576 sinfo->bss_param.flags |=
577 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
caf60a6c 578 sinfo->bss_param.dtim_period = priv->dtim_period;
c4f3b972
AK		 579 sinfo->bss_param.beacon_interval =
580 priv->curr_bss_params.bss_descriptor.beacon_period;
581 }
582
958a4a86 583 return 0;
5e6e3a92
BZ		 584}
585
586/*
587 * CFG802.11 operation handler to get station information.
588 *
589 * This function only works in connected mode, and dumps the
590 * requested station information, if available.
591 */
592static int
593mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
594 u8 *mac, struct station_info *sinfo)
595{
596 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
5e6e3a92 597
5e6e3a92
BZ		 598 if (!priv->media_connected)
599 return -ENOENT;
600 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
601 return -ENOENT;
602
636c4598 603 return mwifiex_dump_station_info(priv, sinfo);
5e6e3a92
BZ		 604}
605
f85aae6b
AK		 606/*
607 * CFG802.11 operation handler to dump station information.
608 */
609static int
610mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
611 int idx, u8 *mac, struct station_info *sinfo)
612{
613 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
614
615 if (!priv->media_connected || idx)
616 return -ENOENT;
617
618 memcpy(mac, priv->cfg_bssid, ETH_ALEN);
619
620 return mwifiex_dump_station_info(priv, sinfo);
621}
622
5e6e3a92
BZ		 623/* Supported rates to be advertised to the cfg80211 */
624
625static struct ieee80211_rate mwifiex_rates[] = {
626 {.bitrate = 10, .hw_value = 2, },
627 {.bitrate = 20, .hw_value = 4, },
628 {.bitrate = 55, .hw_value = 11, },
629 {.bitrate = 110, .hw_value = 22, },
5e6e3a92
BZ		 630 {.bitrate = 60, .hw_value = 12, },
631 {.bitrate = 90, .hw_value = 18, },
632 {.bitrate = 120, .hw_value = 24, },
633 {.bitrate = 180, .hw_value = 36, },
634 {.bitrate = 240, .hw_value = 48, },
635 {.bitrate = 360, .hw_value = 72, },
636 {.bitrate = 480, .hw_value = 96, },
637 {.bitrate = 540, .hw_value = 108, },
5e6e3a92
BZ		 638};
639
640/* Channel definitions to be advertised to cfg80211 */
641
642static struct ieee80211_channel mwifiex_channels_2ghz[] = {
643 {.center_freq = 2412, .hw_value = 1, },
644 {.center_freq = 2417, .hw_value = 2, },
645 {.center_freq = 2422, .hw_value = 3, },
646 {.center_freq = 2427, .hw_value = 4, },
647 {.center_freq = 2432, .hw_value = 5, },
648 {.center_freq = 2437, .hw_value = 6, },
649 {.center_freq = 2442, .hw_value = 7, },
650 {.center_freq = 2447, .hw_value = 8, },
651 {.center_freq = 2452, .hw_value = 9, },
652 {.center_freq = 2457, .hw_value = 10, },
653 {.center_freq = 2462, .hw_value = 11, },
654 {.center_freq = 2467, .hw_value = 12, },
655 {.center_freq = 2472, .hw_value = 13, },
656 {.center_freq = 2484, .hw_value = 14, },
657};
658
659static struct ieee80211_supported_band mwifiex_band_2ghz = {
660 .channels = mwifiex_channels_2ghz,
661 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
662 .bitrates = mwifiex_rates,
8763848e 663 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
5e6e3a92
BZ		 664};
665
666static struct ieee80211_channel mwifiex_channels_5ghz[] = {
667 {.center_freq = 5040, .hw_value = 8, },
668 {.center_freq = 5060, .hw_value = 12, },
669 {.center_freq = 5080, .hw_value = 16, },
670 {.center_freq = 5170, .hw_value = 34, },
671 {.center_freq = 5190, .hw_value = 38, },
672 {.center_freq = 5210, .hw_value = 42, },
673 {.center_freq = 5230, .hw_value = 46, },
674 {.center_freq = 5180, .hw_value = 36, },
675 {.center_freq = 5200, .hw_value = 40, },
676 {.center_freq = 5220, .hw_value = 44, },
677 {.center_freq = 5240, .hw_value = 48, },
678 {.center_freq = 5260, .hw_value = 52, },
679 {.center_freq = 5280, .hw_value = 56, },
680 {.center_freq = 5300, .hw_value = 60, },
681 {.center_freq = 5320, .hw_value = 64, },
682 {.center_freq = 5500, .hw_value = 100, },
683 {.center_freq = 5520, .hw_value = 104, },
684 {.center_freq = 5540, .hw_value = 108, },
685 {.center_freq = 5560, .hw_value = 112, },
686 {.center_freq = 5580, .hw_value = 116, },
687 {.center_freq = 5600, .hw_value = 120, },
688 {.center_freq = 5620, .hw_value = 124, },
689 {.center_freq = 5640, .hw_value = 128, },
690 {.center_freq = 5660, .hw_value = 132, },
691 {.center_freq = 5680, .hw_value = 136, },
692 {.center_freq = 5700, .hw_value = 140, },
693 {.center_freq = 5745, .hw_value = 149, },
694 {.center_freq = 5765, .hw_value = 153, },
695 {.center_freq = 5785, .hw_value = 157, },
696 {.center_freq = 5805, .hw_value = 161, },
697 {.center_freq = 5825, .hw_value = 165, },
698};
699
700static struct ieee80211_supported_band mwifiex_band_5ghz = {
701 .channels = mwifiex_channels_5ghz,
702 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
eb416ad3
AP		 703 .bitrates = mwifiex_rates + 4,
704 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
5e6e3a92
BZ		 705};
706
707
708/* Supported crypto cipher suits to be advertised to cfg80211 */
709
710static const u32 mwifiex_cipher_suites[] = {
711 WLAN_CIPHER_SUITE_WEP40,
712 WLAN_CIPHER_SUITE_WEP104,
713 WLAN_CIPHER_SUITE_TKIP,
714 WLAN_CIPHER_SUITE_CCMP,
715};
716
5d82c53a
YAP		 717/*
718 * CFG802.11 operation handler for setting bit rates.
719 *
720 * Function selects legacy bang B/G/BG from corresponding bitrates selection.
721 * Currently only 2.4GHz band is supported.
722 */
723static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
724 struct net_device *dev,
725 const u8 *peer,
726 const struct cfg80211_bitrate_mask *mask)
727{
5d82c53a
YAP		 728 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
729 int index = 0, mode = 0, i;
43906cdb 730 struct mwifiex_adapter *adapter = priv->adapter;
5d82c53a
YAP		 731
732 /* Currently only 2.4GHz is supported */
733 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
734 /*
735 * Rates below 6 Mbps in the table are CCK rates; 802.11b
736 * and from 6 they are OFDM; 802.11G
737 */
738 if (mwifiex_rates[i].bitrate == 60) {
739 index = 1 << i;
740 break;
741 }
742 }
743
744 if (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {
745 mode = BAND_B;
746 } else {
747 mode = BAND_G;
748 if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)
749 mode |= BAND_B;
750 }
751
43906cdb
AK		 752 if (!((mode | adapter->fw_bands) & ~adapter->fw_bands)) {
753 adapter->config_bands = mode;
754 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
755 adapter->adhoc_start_band = mode;
756 adapter->adhoc_11n_enabled = false;
757 }
758 }
21c3ba34 759 adapter->sec_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
3aebee02 760 adapter->channel_type = NL80211_CHAN_NO_HT;
5d82c53a
YAP		 761
762 wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",
aea0701e 763 (mode & BAND_B) ? "b" : "", (mode & BAND_G) ? "g" : "");
5d82c53a
YAP		 764
765 return 0;
766}
767
5e6e3a92
BZ		 768/*
769 * CFG802.11 operation handler for disconnection request.
770 *
771 * This function does not work when there is already a disconnection
772 * procedure going on.
773 */
774static int
775mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
776 u16 reason_code)
777{
778 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
779
600f5d90 780 if (mwifiex_deauthenticate(priv, NULL))
5e6e3a92
BZ		 781 return -EFAULT;
782
783 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
784 " reason code %d\n", priv->cfg_bssid, reason_code);
785
38c9d664 786 memset(priv->cfg_bssid, 0, ETH_ALEN);
5e6e3a92
BZ		 787
788 return 0;
789}
790
791/*
792 * This function informs the CFG802.11 subsystem of a new IBSS.
793 *
794 * The following information are sent to the CFG802.11 subsystem
795 * to register the new IBSS. If we do not register the new IBSS,
796 * a kernel panic will result.
797 * - SSID
798 * - SSID length
799 * - BSSID
800 * - Channel
801 */
802static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
803{
5e6e3a92
BZ		 804 struct ieee80211_channel *chan;
805 struct mwifiex_bss_info bss_info;
aa95a48d 806 struct cfg80211_bss *bss;
270e58e8 807 int ie_len;
5e6e3a92 808 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
4ed5d521 809 enum ieee80211_band band;
5e6e3a92 810
636c4598
YAP		 811 if (mwifiex_get_bss_info(priv, &bss_info))
812 return -1;
5e6e3a92
BZ		 813
814 ie_buf[0] = WLAN_EID_SSID;
815 ie_buf[1] = bss_info.ssid.ssid_len;
816
817 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
aea0701e 818 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
5e6e3a92
BZ		 819 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
820
4ed5d521 821 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
5e6e3a92
BZ		 822 chan = __ieee80211_get_channel(priv->wdev->wiphy,
823 ieee80211_channel_to_frequency(bss_info.bss_chan,
4ed5d521 824 band));
5e6e3a92 825
aa95a48d 826 bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
aea0701e
YAP		 827 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
828 0, ie_buf, ie_len, 0, GFP_KERNEL);
aa95a48d 829 cfg80211_put_bss(bss);
5e6e3a92
BZ		 830 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
831
636c4598 832 return 0;
5e6e3a92
BZ		 833}
834
5e6e3a92
BZ		 835/*
836 * This function connects with a BSS.
837 *
838 * This function handles both Infra and Ad-Hoc modes. It also performs
839 * validity checking on the provided parameters, disconnects from the
840 * current BSS (if any), sets up the association/scan parameters,
841 * including security settings, and performs specific SSID scan before
842 * trying to connect.
843 *
844 * For Infra mode, the function returns failure if the specified SSID
845 * is not found in scan table. However, for Ad-Hoc mode, it can create
846 * the IBSS if it does not exist. On successful completion in either case,
7c6fa2a8 847 * the function notifies the CFG802.11 subsystem of the new BSS connection.
5e6e3a92
BZ		 848 */
849static int
850mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
851 u8 *bssid, int mode, struct ieee80211_channel *channel,
852 struct cfg80211_connect_params *sme, bool privacy)
853{
b9be5f39 854 struct cfg80211_ssid req_ssid;
270e58e8 855 int ret, auth_type = 0;
7c6fa2a8
AK		 856 struct cfg80211_bss *bss = NULL;
857 u8 is_scanning_required = 0;
5e6e3a92 858
b9be5f39 859 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
5e6e3a92
BZ		 860
861 req_ssid.ssid_len = ssid_len;
862 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
863 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
864 return -EINVAL;
865 }
866
867 memcpy(req_ssid.ssid, ssid, ssid_len);
868 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
869 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
870 return -EINVAL;
871 }
872
873 /* disconnect before try to associate */
600f5d90 874 mwifiex_deauthenticate(priv, NULL);
5e6e3a92
BZ		 875
876 if (channel)
877 ret = mwifiex_set_rf_channel(priv, channel,
3aebee02 878 priv->adapter->channel_type);
5e6e3a92 879
6670f15b
AK		 880 /* As this is new association, clear locally stored
881 * keys and security related flags */
882 priv->sec_info.wpa_enabled = false;
883 priv->sec_info.wpa2_enabled = false;
884 priv->wep_key_curr_index = 0;
00f157b4 885 priv->sec_info.encryption_mode = 0;
a0f6d6ca 886 priv->sec_info.is_authtype_auto = 0;
6670f15b 887 ret = mwifiex_set_encode(priv, NULL, 0, 0, 1);
5e6e3a92 888
eecd8250 889 if (mode == NL80211_IFTYPE_ADHOC) {
5e6e3a92
BZ		 890 /* "privacy" is set only for ad-hoc mode */
891 if (privacy) {
892 /*
2be50b8d 893 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
5e6e3a92
BZ		 894 * the firmware can find a matching network from the
895 * scan. The cfg80211 does not give us the encryption
896 * mode at this stage so just setting it to WEP here.
897 */
203afeca 898 priv->sec_info.encryption_mode =
2be50b8d 899 WLAN_CIPHER_SUITE_WEP104;
203afeca 900 priv->sec_info.authentication_mode =
f986b6d5 901 NL80211_AUTHTYPE_OPEN_SYSTEM;
5e6e3a92
BZ		 902 }
903
904 goto done;
905 }
906
907 /* Now handle infra mode. "sme" is valid for infra mode only */
a0f6d6ca 908 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
f986b6d5 909 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
a0f6d6ca
AK		 910 priv->sec_info.is_authtype_auto = 1;
911 } else {
912 auth_type = sme->auth_type;
913 }
5e6e3a92
BZ		 914
915 if (sme->crypto.n_ciphers_pairwise) {
2be50b8d
YAP		 916 priv->sec_info.encryption_mode =
917 sme->crypto.ciphers_pairwise[0];
203afeca 918 priv->sec_info.authentication_mode = auth_type;
5e6e3a92
BZ		 919 }
920
921 if (sme->crypto.cipher_group) {
2be50b8d 922 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
203afeca 923 priv->sec_info.authentication_mode = auth_type;
5e6e3a92
BZ		 924 }
925 if (sme->ie)
926 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
927
928 if (sme->key) {
e6faada5 929 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
5e6e3a92
BZ		 930 dev_dbg(priv->adapter->dev,
931 "info: setting wep encryption"
932 " with key len %d\n", sme->key_len);
6670f15b 933 priv->wep_key_curr_index = sme->key_idx;
5e6e3a92
BZ		 934 ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
935 sme->key_idx, 0);
936 }
937 }
938done:
7c6fa2a8
AK		 939 /*
940 * Scan entries are valid for some time (15 sec). So we can save one
941 * active scan time if we just try cfg80211_get_bss first. If it fails
942 * then request scan and cfg80211_get_bss() again for final output.
943 */
944 while (1) {
945 if (is_scanning_required) {
946 /* Do specific SSID scanning */
947 if (mwifiex_request_scan(priv, &req_ssid)) {
948 dev_err(priv->adapter->dev, "scan error\n");
949 return -EFAULT;
950 }
951 }
5e6e3a92 952
7c6fa2a8
AK		 953 /* Find the BSS we want using available scan results */
954 if (mode == NL80211_IFTYPE_ADHOC)
955 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
956 bssid, ssid, ssid_len,
957 WLAN_CAPABILITY_IBSS,
958 WLAN_CAPABILITY_IBSS);
959 else
960 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
961 bssid, ssid, ssid_len,
962 WLAN_CAPABILITY_ESS,
963 WLAN_CAPABILITY_ESS);
964
965 if (!bss) {
966 if (is_scanning_required) {
aea0701e
YAP		 967 dev_warn(priv->adapter->dev,
968 "assoc: requested bss not found in scan results\n");
7c6fa2a8
AK		 969 break;
970 }
971 is_scanning_required = 1;
972 } else {
aea0701e
YAP		 973 dev_dbg(priv->adapter->dev,
974 "info: trying to associate to '%s' bssid %pM\n",
975 (char *) req_ssid.ssid, bss->bssid);
7c6fa2a8
AK		 976 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
977 break;
978 }
5e6e3a92
BZ		 979 }
980
7c6fa2a8 981 if (mwifiex_bss_start(priv, bss, &req_ssid))
5e6e3a92
BZ		 982 return -EFAULT;
983
eecd8250 984 if (mode == NL80211_IFTYPE_ADHOC) {
5e6e3a92
BZ		 985 /* Inform the BSS information to kernel, otherwise
986 * kernel will give a panic after successful assoc */
987 if (mwifiex_cfg80211_inform_ibss_bss(priv))
988 return -EFAULT;
989 }
990
991 return ret;
992}
993
994/*
995 * CFG802.11 operation handler for association request.
996 *
997 * This function does not work when the current mode is set to Ad-Hoc, or
998 * when there is already an association procedure going on. The given BSS
999 * information is used to associate.
1000 */
1001static int
1002mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1003 struct cfg80211_connect_params *sme)
1004{
1005 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1006 int ret = 0;
5e6e3a92 1007
eecd8250 1008 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
5e6e3a92
BZ		 1009 wiphy_err(wiphy, "received infra assoc request "
1010 "when station is in ibss mode\n");
1011 goto done;
1012 }
1013
5e6e3a92 1014 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
aea0701e 1015 (char *) sme->ssid, sme->bssid);
5e6e3a92
BZ		 1016
1017 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
eecd8250 1018 priv->bss_mode, sme->channel, sme, 0);
5e6e3a92 1019done:
38c9d664
AK		 1020 if (!ret) {
1021 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1022 NULL, 0, WLAN_STATUS_SUCCESS,
1023 GFP_KERNEL);
1024 dev_dbg(priv->adapter->dev,
1025 "info: associated to bssid %pM successfully\n",
1026 priv->cfg_bssid);
1027 } else {
1028 dev_dbg(priv->adapter->dev,
1029 "info: association to bssid %pM failed\n",
1030 priv->cfg_bssid);
1031 memset(priv->cfg_bssid, 0, ETH_ALEN);
1032 }
1033
5e6e3a92
BZ		 1034 return ret;
1035}
1036
1037/*
1038 * CFG802.11 operation handler to join an IBSS.
1039 *
1040 * This function does not work in any mode other than Ad-Hoc, or if
1041 * a join operation is already in progress.
1042 */
1043static int
1044mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1045 struct cfg80211_ibss_params *params)
1046{
f540f9f3 1047 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
5e6e3a92 1048 int ret = 0;
5e6e3a92 1049
eecd8250 1050 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
5e6e3a92
BZ		 1051 wiphy_err(wiphy, "request to join ibss received "
1052 "when station is not in ibss mode\n");
1053 goto done;
1054 }
1055
5e6e3a92 1056 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
aea0701e 1057 (char *) params->ssid, params->bssid);
5e6e3a92
BZ		 1058
1059 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
aea0701e
YAP		 1060 params->bssid, priv->bss_mode,
1061 params->channel, NULL, params->privacy);
5e6e3a92 1062done:
38c9d664
AK		 1063 if (!ret) {
1064 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1065 dev_dbg(priv->adapter->dev,
1066 "info: joined/created adhoc network with bssid"
1067 " %pM successfully\n", priv->cfg_bssid);
1068 } else {
1069 dev_dbg(priv->adapter->dev,
1070 "info: failed creating/joining adhoc network\n");
1071 }
1072
5e6e3a92
BZ		 1073 return ret;
1074}
1075
1076/*
1077 * CFG802.11 operation handler to leave an IBSS.
1078 *
1079 * This function does not work if a leave operation is
1080 * already in progress.
1081 */
1082static int
1083mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1084{
f540f9f3 1085 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
5e6e3a92 1086
5e6e3a92 1087 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
aea0701e 1088 priv->cfg_bssid);
600f5d90 1089 if (mwifiex_deauthenticate(priv, NULL))
5e6e3a92
BZ		 1090 return -EFAULT;
1091
38c9d664 1092 memset(priv->cfg_bssid, 0, ETH_ALEN);
5e6e3a92
BZ		 1093
1094 return 0;
1095}
1096
1097/*
1098 * CFG802.11 operation handler for scan request.
1099 *
1100 * This function issues a scan request to the firmware based upon
1101 * the user specified scan configuration. On successfull completion,
1102 * it also informs the results.
1103 */
1104static int
1105mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
1106 struct cfg80211_scan_request *request)
1107{
1108 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
38c9d664
AK		 1109 int i;
1110 struct ieee80211_channel *chan;
5e6e3a92
BZ		 1111
1112 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1113
5e6e3a92
BZ		 1114 priv->scan_request = request;
1115
38c9d664 1116 priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
aea0701e 1117 GFP_KERNEL);
38c9d664
AK		 1118 if (!priv->user_scan_cfg) {
1119 dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
1120 return -ENOMEM;
1121 }
be0b281e
AK		 1122
1123 priv->user_scan_cfg->num_ssids = request->n_ssids;
1124 priv->user_scan_cfg->ssid_list = request->ssids;
1125
38c9d664
AK		 1126 for (i = 0; i < request->n_channels; i++) {
1127 chan = request->channels[i];
1128 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1129 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1130
1131 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1132 priv->user_scan_cfg->chan_list[i].scan_type =
aea0701e 1133 MWIFIEX_SCAN_TYPE_PASSIVE;
38c9d664
AK		 1134 else
1135 priv->user_scan_cfg->chan_list[i].scan_type =
aea0701e 1136 MWIFIEX_SCAN_TYPE_ACTIVE;
38c9d664
AK		 1137
1138 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1139 }
1140 if (mwifiex_set_user_scan_ioctl(priv, priv->user_scan_cfg))
1141 return -EFAULT;
1142
5e6e3a92
BZ		 1143 return 0;
1144}
1145
1146/*
1147 * This function sets up the CFG802.11 specific HT capability fields
1148 * with default values.
1149 *
1150 * The following default values are set -
1151 * - HT Supported = True
a46b7b5c
AK		 1152 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1153 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1154 * - HT Capabilities supported by firmware
5e6e3a92
BZ		 1155 * - MCS information, Rx mask = 0xff
1156 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1157 */
1158static void
1159mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1160 struct mwifiex_private *priv)
1161{
1162 int rx_mcs_supp;
1163 struct ieee80211_mcs_info mcs_set;
1164 u8 *mcs = (u8 *)&mcs_set;
1165 struct mwifiex_adapter *adapter = priv->adapter;
1166
1167 ht_info->ht_supported = true;
a46b7b5c
AK		 1168 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1169 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
5e6e3a92
BZ		 1170
1171 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
5e6e3a92 1172
a46b7b5c
AK		 1173 /* Fill HT capability information */
1174 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1175 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1176 else
1177 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1178
1179 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1180 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1181 else
1182 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1183
1184 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1185 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1186 else
1187 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1188
1189 if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1190 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1191 else
1192 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1193
1194 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1195 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1196 else
1197 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1198
1199 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1200 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1201
1202 rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
5e6e3a92
BZ		 1203 /* Set MCS for 1x1 */
1204 memset(mcs, 0xff, rx_mcs_supp);
1205 /* Clear all the other values */
1206 memset(&mcs[rx_mcs_supp], 0,
aea0701e 1207 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
eecd8250 1208 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
aea0701e 1209 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
5e6e3a92
BZ		 1210 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1211 SETHT_MCS32(mcs_set.rx_mask);
1212
1213 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1214
1215 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1216}
1217
93a1df48
YAP		 1218/*
1219 * create a new virtual interface with the given name
1220 */
1221struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy,
aea0701e
YAP		 1222 char *name,
1223 enum nl80211_iftype type,
1224 u32 *flags,
1225 struct vif_params *params)
93a1df48
YAP		 1226{
1227 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
1228 struct mwifiex_adapter *adapter;
1229 struct net_device *dev;
1230 void *mdev_priv;
1231
1232 if (!priv)
1233 return NULL;
1234
1235 adapter = priv->adapter;
1236 if (!adapter)
1237 return NULL;
1238
1239 switch (type) {
1240 case NL80211_IFTYPE_UNSPECIFIED:
1241 case NL80211_IFTYPE_STATION:
1242 case NL80211_IFTYPE_ADHOC:
1243 if (priv->bss_mode) {
1244 wiphy_err(wiphy, "cannot create multiple"
1245 " station/adhoc interfaces\n");
1246 return NULL;
1247 }
1248
1249 if (type == NL80211_IFTYPE_UNSPECIFIED)
1250 priv->bss_mode = NL80211_IFTYPE_STATION;
1251 else
1252 priv->bss_mode = type;
1253
1254 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
1255 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
1256 priv->bss_priority = 0;
1257 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
93a1df48
YAP		 1258 priv->bss_num = 0;
1259
1260 break;
1261 default:
1262 wiphy_err(wiphy, "type not supported\n");
1263 return NULL;
1264 }
1265
1266 dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name,
1267 ether_setup, 1);
1268 if (!dev) {
1269 wiphy_err(wiphy, "no memory available for netdevice\n");
1270 goto error;
1271 }
1272
1273 dev_net_set(dev, wiphy_net(wiphy));
1274 dev->ieee80211_ptr = priv->wdev;
1275 dev->ieee80211_ptr->iftype = priv->bss_mode;
1276 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
1277 memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN);
1278 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
1279
1280 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1281 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
1282 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
1283
1284 mdev_priv = netdev_priv(dev);
1285 *((unsigned long *) mdev_priv) = (unsigned long) priv;
1286
1287 priv->netdev = dev;
1288 mwifiex_init_priv_params(priv, dev);
1289
1290 SET_NETDEV_DEV(dev, adapter->dev);
1291
1292 /* Register network device */
1293 if (register_netdevice(dev)) {
1294 wiphy_err(wiphy, "cannot register virtual network device\n");
1295 goto error;
1296 }
1297
1298 sema_init(&priv->async_sem, 1);
1299 priv->scan_pending_on_block = false;
1300
1301 dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
1302
1303#ifdef CONFIG_DEBUG_FS
1304 mwifiex_dev_debugfs_init(priv);
1305#endif
1306 return dev;
1307error:
1308 if (dev && (dev->reg_state == NETREG_UNREGISTERED))
1309 free_netdev(dev);
1310 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1311
1312 return NULL;
1313}
1314EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
1315
1316/*
1317 * del_virtual_intf: remove the virtual interface determined by dev
1318 */
1319int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct net_device *dev)
1320{
f540f9f3 1321 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
93a1df48
YAP		 1322
1323#ifdef CONFIG_DEBUG_FS
1324 mwifiex_dev_debugfs_remove(priv);
1325#endif
1326
1327 if (!netif_queue_stopped(priv->netdev))
1328 netif_stop_queue(priv->netdev);
1329
1330 if (netif_carrier_ok(priv->netdev))
1331 netif_carrier_off(priv->netdev);
1332
1333 if (dev->reg_state == NETREG_REGISTERED)
1334 unregister_netdevice(dev);
1335
1336 if (dev->reg_state == NETREG_UNREGISTERED)
1337 free_netdev(dev);
1338
1339 /* Clear the priv in adapter */
1340 priv->netdev = NULL;
1341
1342 priv->media_connected = false;
1343
93a1df48
YAP		 1344 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1345
1346 return 0;
1347}
1348EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
1349
5e6e3a92
BZ		 1350/* station cfg80211 operations */
1351static struct cfg80211_ops mwifiex_cfg80211_ops = {
93a1df48
YAP		 1352 .add_virtual_intf = mwifiex_add_virtual_intf,
1353 .del_virtual_intf = mwifiex_del_virtual_intf,
5e6e3a92
BZ		 1354 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
1355 .scan = mwifiex_cfg80211_scan,
1356 .connect = mwifiex_cfg80211_connect,
1357 .disconnect = mwifiex_cfg80211_disconnect,
1358 .get_station = mwifiex_cfg80211_get_station,
f85aae6b 1359 .dump_station = mwifiex_cfg80211_dump_station,
5e6e3a92
BZ		 1360 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
1361 .set_channel = mwifiex_cfg80211_set_channel,
1362 .join_ibss = mwifiex_cfg80211_join_ibss,
1363 .leave_ibss = mwifiex_cfg80211_leave_ibss,
1364 .add_key = mwifiex_cfg80211_add_key,
1365 .del_key = mwifiex_cfg80211_del_key,
1366 .set_default_key = mwifiex_cfg80211_set_default_key,
1367 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
1368 .set_tx_power = mwifiex_cfg80211_set_tx_power,
5d82c53a 1369 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
5e6e3a92
BZ		 1370};
1371
1372/*
1373 * This function registers the device with CFG802.11 subsystem.
1374 *
1375 * The function creates the wireless device/wiphy, populates it with
1376 * default parameters and handler function pointers, and finally
1377 * registers the device.
1378 */
93a1df48 1379int mwifiex_register_cfg80211(struct mwifiex_private *priv)
5e6e3a92 1380{
270e58e8
YAP		 1381 int ret;
1382 void *wdev_priv;
5e6e3a92 1383 struct wireless_dev *wdev;
aea0701e 1384 struct ieee80211_sta_ht_cap *ht_info;
5e6e3a92
BZ		 1385
1386 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1387 if (!wdev) {
1388 dev_err(priv->adapter->dev, "%s: allocating wireless device\n",
aea0701e 1389 __func__);
5e6e3a92
BZ		 1390 return -ENOMEM;
1391 }
1392 wdev->wiphy =
1393 wiphy_new(&mwifiex_cfg80211_ops,
1394 sizeof(struct mwifiex_private *));
b53575ec
CF		 1395 if (!wdev->wiphy) {
1396 kfree(wdev);
5e6e3a92 1397 return -ENOMEM;
b53575ec 1398 }
5e6e3a92
BZ		 1399 wdev->iftype = NL80211_IFTYPE_STATION;
1400 wdev->wiphy->max_scan_ssids = 10;
aea0701e
YAP		 1401 wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1402 BIT(NL80211_IFTYPE_ADHOC);
adc89595 1403
5e6e3a92 1404 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
aea0701e
YAP		 1405 ht_info = &wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap;
1406 mwifiex_setup_ht_caps(ht_info, priv);
adc89595
AK		 1407
1408 if (priv->adapter->config_bands & BAND_A) {
1409 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
aea0701e
YAP		 1410 ht_info = &wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap;
1411 mwifiex_setup_ht_caps(ht_info, priv);
adc89595
AK		 1412 } else {
1413 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1414 }
5e6e3a92
BZ		 1415
1416 /* Initialize cipher suits */
1417 wdev->wiphy->cipher_suites = mwifiex_cipher_suites;
1418 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
1419
93a1df48 1420 memcpy(wdev->wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
5e6e3a92
BZ		 1421 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1422
5116f3ce
AK		 1423 /* Reserve space for bss band information */
1424 wdev->wiphy->bss_priv_size = sizeof(u8);
1425
5e6e3a92
BZ		 1426 wdev->wiphy->reg_notifier = mwifiex_reg_notifier;
1427
1428 /* Set struct mwifiex_private pointer in wiphy_priv */
1429 wdev_priv = wiphy_priv(wdev->wiphy);
1430
1431 *(unsigned long *) wdev_priv = (unsigned long) priv;
1432
a7b21165
YAP		 1433 set_wiphy_dev(wdev->wiphy, (struct device *) priv->adapter->dev);
1434
5e6e3a92
BZ		 1435 ret = wiphy_register(wdev->wiphy);
1436 if (ret < 0) {
1437 dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",
aea0701e 1438 __func__);
5e6e3a92 1439 wiphy_free(wdev->wiphy);
b53575ec 1440 kfree(wdev);
5e6e3a92
BZ		 1441 return ret;
1442 } else {
1443 dev_dbg(priv->adapter->dev,
aea0701e 1444 "info: successfully registered wiphy device\n");
5e6e3a92
BZ		 1445 }
1446
5e6e3a92
BZ		 1447 priv->wdev = wdev;
1448
5e6e3a92
BZ		 1449 return ret;
1450}
Linux kernel - Deliverables
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