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mwifiex: remove wireless.h inclusion and fix resulting bugs
[deliverable/linux.git] / drivers / net / wireless / mwifiex / sta_ioctl.c
1 /*
2 * Marvell Wireless LAN device driver: functions for station ioctl
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 "decl.h"
21 #include "ioctl.h"
22 #include "util.h"
23 #include "fw.h"
24 #include "main.h"
25 #include "wmm.h"
26 #include "11n.h"
27 #include "cfg80211.h"
28
29 /*
30 * Copies the multicast address list from device to driver.
31 *
32 * This function does not validate the destination memory for
33 * size, and the calling function must ensure enough memory is
34 * available.
35 */
36 int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
37 struct net_device *dev)
38 {
39 int i = 0;
40 struct netdev_hw_addr *ha;
41
42 netdev_for_each_mc_addr(ha, dev)
43 memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN);
44
45 return i;
46 }
47
48 /*
49 * Wait queue completion handler.
50 *
51 * This function waits on a cmd wait queue. It also cancels the pending
52 * request after waking up, in case of errors.
53 */
54 int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter)
55 {
56 bool cancel_flag = false;
57 int status = adapter->cmd_wait_q.status;
58
59 dev_dbg(adapter->dev, "cmd pending\n");
60 atomic_inc(&adapter->cmd_pending);
61
62 /* Status pending, wake up main process */
63 queue_work(adapter->workqueue, &adapter->main_work);
64
65 /* Wait for completion */
66 wait_event_interruptible(adapter->cmd_wait_q.wait,
67 adapter->cmd_wait_q.condition);
68 if (!adapter->cmd_wait_q.condition)
69 cancel_flag = true;
70
71 if (cancel_flag) {
72 mwifiex_cancel_pending_ioctl(adapter);
73 dev_dbg(adapter->dev, "cmd cancel\n");
74 }
75 adapter->cmd_wait_q.status = 0;
76
77 return status;
78 }
79
80 /*
81 * This function prepares the correct firmware command and
82 * issues it to set the multicast list.
83 *
84 * This function can be used to enable promiscuous mode, or enable all
85 * multicast packets, or to enable selective multicast.
86 */
87 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
88 struct mwifiex_multicast_list *mcast_list)
89 {
90 int ret = 0;
91 u16 old_pkt_filter;
92
93 old_pkt_filter = priv->curr_pkt_filter;
94
95 if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
96 dev_dbg(priv->adapter->dev, "info: Enable Promiscuous mode\n");
97 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
98 priv->curr_pkt_filter &=
99 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
100 } else {
101 /* Multicast */
102 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
103 if (mcast_list->mode == MWIFIEX_MULTICAST_MODE) {
104 dev_dbg(priv->adapter->dev,
105 "info: Enabling All Multicast!\n");
106 priv->curr_pkt_filter |=
107 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
108 } else {
109 priv->curr_pkt_filter &=
110 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
111 if (mcast_list->num_multicast_addr) {
112 dev_dbg(priv->adapter->dev,
113 "info: Set multicast list=%d\n",
114 mcast_list->num_multicast_addr);
115 /* Set multicast addresses to firmware */
116 if (old_pkt_filter == priv->curr_pkt_filter) {
117 /* Send request to firmware */
118 ret = mwifiex_send_cmd_async(priv,
119 HostCmd_CMD_MAC_MULTICAST_ADR,
120 HostCmd_ACT_GEN_SET, 0,
121 mcast_list);
122 } else {
123 /* Send request to firmware */
124 ret = mwifiex_send_cmd_async(priv,
125 HostCmd_CMD_MAC_MULTICAST_ADR,
126 HostCmd_ACT_GEN_SET, 0,
127 mcast_list);
128 }
129 }
130 }
131 }
132 dev_dbg(priv->adapter->dev,
133 "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
134 old_pkt_filter, priv->curr_pkt_filter);
135 if (old_pkt_filter != priv->curr_pkt_filter) {
136 ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
137 HostCmd_ACT_GEN_SET,
138 0, &priv->curr_pkt_filter);
139 }
140
141 return ret;
142 }
143
144 /*
145 * In Ad-Hoc mode, the IBSS is created if not found in scan list.
146 * In both Ad-Hoc and infra mode, an deauthentication is performed
147 * first.
148 */
149 int mwifiex_bss_start(struct mwifiex_private *priv,
150 struct mwifiex_ssid_bssid *ssid_bssid)
151 {
152 int ret;
153 struct mwifiex_adapter *adapter = priv->adapter;
154 s32 i = -1;
155
156 priv->scan_block = false;
157 if (!ssid_bssid)
158 return -1;
159
160 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
161 /* Infra mode */
162 ret = mwifiex_deauthenticate(priv, NULL);
163 if (ret)
164 return ret;
165
166 /* Search for the requested SSID in the scan table */
167 if (ssid_bssid->ssid.ssid_len)
168 i = mwifiex_find_ssid_in_list(priv, &ssid_bssid->ssid,
169 NULL, NL80211_IFTYPE_STATION);
170 else
171 i = mwifiex_find_bssid_in_list(priv,
172 (u8 *) &ssid_bssid->bssid,
173 NL80211_IFTYPE_STATION);
174 if (i < 0)
175 return -1;
176
177 dev_dbg(adapter->dev,
178 "info: SSID found in scan list ... associating...\n");
179
180 /* Clear any past association response stored for
181 * application retrieval */
182 priv->assoc_rsp_size = 0;
183 ret = mwifiex_associate(priv, &adapter->scan_table[i]);
184 if (ret)
185 return ret;
186 } else {
187 /* Adhoc mode */
188 /* If the requested SSID matches current SSID, return */
189 if (ssid_bssid->ssid.ssid_len &&
190 (!mwifiex_ssid_cmp
191 (&priv->curr_bss_params.bss_descriptor.ssid,
192 &ssid_bssid->ssid)))
193 return 0;
194
195 /* Exit Adhoc mode first */
196 dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n");
197 ret = mwifiex_deauthenticate(priv, NULL);
198 if (ret)
199 return ret;
200
201 priv->adhoc_is_link_sensed = false;
202
203 /* Search for the requested network in the scan table */
204 if (ssid_bssid->ssid.ssid_len)
205 i = mwifiex_find_ssid_in_list(priv,
206 &ssid_bssid->ssid, NULL,
207 NL80211_IFTYPE_ADHOC);
208 else
209 i = mwifiex_find_bssid_in_list(priv,
210 (u8 *)&ssid_bssid->bssid,
211 NL80211_IFTYPE_ADHOC);
212
213 if (i >= 0) {
214 dev_dbg(adapter->dev, "info: network found in scan"
215 " list. Joining...\n");
216 ret = mwifiex_adhoc_join(priv, &adapter->scan_table[i]);
217 if (ret)
218 return ret;
219 } else {
220 dev_dbg(adapter->dev, "info: Network not found in "
221 "the list, creating adhoc with ssid = %s\n",
222 ssid_bssid->ssid.ssid);
223 ret = mwifiex_adhoc_start(priv, &ssid_bssid->ssid);
224 if (ret)
225 return ret;
226 }
227 }
228
229 return ret;
230 }
231
232 /*
233 * IOCTL request handler to set host sleep configuration.
234 *
235 * This function prepares the correct firmware command and
236 * issues it.
237 */
238 int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
239 int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
240
241 {
242 struct mwifiex_adapter *adapter = priv->adapter;
243 int status = 0;
244 u32 prev_cond = 0;
245
246 if (!hs_cfg)
247 return -ENOMEM;
248
249 switch (action) {
250 case HostCmd_ACT_GEN_SET:
251 if (adapter->pps_uapsd_mode) {
252 dev_dbg(adapter->dev, "info: Host Sleep IOCTL"
253 " is blocked in UAPSD/PPS mode\n");
254 status = -1;
255 break;
256 }
257 if (hs_cfg->is_invoke_hostcmd) {
258 if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL) {
259 if (!adapter->is_hs_configured)
260 /* Already cancelled */
261 break;
262 /* Save previous condition */
263 prev_cond = le32_to_cpu(adapter->hs_cfg
264 .conditions);
265 adapter->hs_cfg.conditions =
266 cpu_to_le32(hs_cfg->conditions);
267 } else if (hs_cfg->conditions) {
268 adapter->hs_cfg.conditions =
269 cpu_to_le32(hs_cfg->conditions);
270 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
271 if (hs_cfg->gap)
272 adapter->hs_cfg.gap = (u8)hs_cfg->gap;
273 } else if (adapter->hs_cfg.conditions ==
274 cpu_to_le32(
275 HOST_SLEEP_CFG_CANCEL)) {
276 /* Return failure if no parameters for HS
277 enable */
278 status = -1;
279 break;
280 }
281 if (cmd_type == MWIFIEX_SYNC_CMD)
282 status = mwifiex_send_cmd_sync(priv,
283 HostCmd_CMD_802_11_HS_CFG_ENH,
284 HostCmd_ACT_GEN_SET, 0,
285 &adapter->hs_cfg);
286 else
287 status = mwifiex_send_cmd_async(priv,
288 HostCmd_CMD_802_11_HS_CFG_ENH,
289 HostCmd_ACT_GEN_SET, 0,
290 &adapter->hs_cfg);
291 if (hs_cfg->conditions == HOST_SLEEP_CFG_CANCEL)
292 /* Restore previous condition */
293 adapter->hs_cfg.conditions =
294 cpu_to_le32(prev_cond);
295 } else {
296 adapter->hs_cfg.conditions =
297 cpu_to_le32(hs_cfg->conditions);
298 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
299 adapter->hs_cfg.gap = (u8)hs_cfg->gap;
300 }
301 break;
302 case HostCmd_ACT_GEN_GET:
303 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
304 hs_cfg->gpio = adapter->hs_cfg.gpio;
305 hs_cfg->gap = adapter->hs_cfg.gap;
306 break;
307 default:
308 status = -1;
309 break;
310 }
311
312 return status;
313 }
314
315 /*
316 * Sends IOCTL request to cancel the existing Host Sleep configuration.
317 *
318 * This function allocates the IOCTL request buffer, fills it
319 * with requisite parameters and calls the IOCTL handler.
320 */
321 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
322 {
323 struct mwifiex_ds_hs_cfg hscfg;
324
325 hscfg.conditions = HOST_SLEEP_CFG_CANCEL;
326 hscfg.is_invoke_hostcmd = true;
327
328 return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
329 cmd_type, &hscfg);
330 }
331 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
332
333 /*
334 * Sends IOCTL request to cancel the existing Host Sleep configuration.
335 *
336 * This function allocates the IOCTL request buffer, fills it
337 * with requisite parameters and calls the IOCTL handler.
338 */
339 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
340 {
341 struct mwifiex_ds_hs_cfg hscfg;
342
343 if (adapter->hs_activated) {
344 dev_dbg(adapter->dev, "cmd: HS Already actived\n");
345 return true;
346 }
347
348 adapter->hs_activate_wait_q_woken = false;
349
350 memset(&hscfg, 0, sizeof(struct mwifiex_hs_config_param));
351 hscfg.is_invoke_hostcmd = true;
352
353 if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
354 MWIFIEX_BSS_ROLE_STA),
355 HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
356 &hscfg)) {
357 dev_err(adapter->dev, "IOCTL request HS enable failed\n");
358 return false;
359 }
360
361 wait_event_interruptible(adapter->hs_activate_wait_q,
362 adapter->hs_activate_wait_q_woken);
363
364 return true;
365 }
366 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
367
368 /*
369 * IOCTL request handler to get BSS information.
370 *
371 * This function collates the information from different driver structures
372 * to send to the user.
373 */
374 int mwifiex_get_bss_info(struct mwifiex_private *priv,
375 struct mwifiex_bss_info *info)
376 {
377 struct mwifiex_adapter *adapter = priv->adapter;
378 struct mwifiex_bssdescriptor *bss_desc;
379 s32 tbl_idx;
380
381 if (!info)
382 return -1;
383
384 bss_desc = &priv->curr_bss_params.bss_descriptor;
385
386 info->bss_mode = priv->bss_mode;
387
388 memcpy(&info->ssid, &bss_desc->ssid,
389 sizeof(struct mwifiex_802_11_ssid));
390
391 memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
392
393 info->bss_chan = bss_desc->channel;
394
395 info->region_code = adapter->region_code;
396
397 /* Scan table index if connected */
398 info->scan_table_idx = 0;
399 if (priv->media_connected) {
400 tbl_idx =
401 mwifiex_find_ssid_in_list(priv, &bss_desc->ssid,
402 bss_desc->mac_address,
403 priv->bss_mode);
404 if (tbl_idx >= 0)
405 info->scan_table_idx = tbl_idx;
406 }
407
408 info->media_connected = priv->media_connected;
409
410 info->max_power_level = priv->max_tx_power_level;
411 info->min_power_level = priv->min_tx_power_level;
412
413 info->adhoc_state = priv->adhoc_state;
414
415 info->bcn_nf_last = priv->bcn_nf_last;
416
417 if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_ENABLED)
418 info->wep_status = true;
419 else
420 info->wep_status = false;
421
422 info->is_hs_configured = adapter->is_hs_configured;
423 info->is_deep_sleep = adapter->is_deep_sleep;
424
425 return 0;
426 }
427
428 /*
429 * The function sets band configurations.
430 *
431 * it performs extra checks to make sure the Ad-Hoc
432 * band and channel are compatible. Otherwise it returns an error.
433 *
434 */
435 int mwifiex_set_radio_band_cfg(struct mwifiex_private *priv,
436 struct mwifiex_ds_band_cfg *radio_cfg)
437 {
438 struct mwifiex_adapter *adapter = priv->adapter;
439 u8 infra_band, adhoc_band;
440 u32 adhoc_channel;
441
442 infra_band = (u8) radio_cfg->config_bands;
443 adhoc_band = (u8) radio_cfg->adhoc_start_band;
444 adhoc_channel = radio_cfg->adhoc_channel;
445
446 /* SET Infra band */
447 if ((infra_band | adapter->fw_bands) & ~adapter->fw_bands)
448 return -1;
449
450 adapter->config_bands = infra_band;
451
452 /* SET Ad-hoc Band */
453 if ((adhoc_band | adapter->fw_bands) & ~adapter->fw_bands)
454 return -1;
455
456 if (adhoc_band)
457 adapter->adhoc_start_band = adhoc_band;
458 adapter->chan_offset = (u8) radio_cfg->sec_chan_offset;
459 /*
460 * If no adhoc_channel is supplied verify if the existing adhoc
461 * channel compiles with new adhoc_band
462 */
463 if (!adhoc_channel) {
464 if (!mwifiex_get_cfp_by_band_and_channel_from_cfg80211
465 (priv, adapter->adhoc_start_band,
466 priv->adhoc_channel)) {
467 /* Pass back the default channel */
468 radio_cfg->adhoc_channel = DEFAULT_AD_HOC_CHANNEL;
469 if ((adapter->adhoc_start_band & BAND_A)
470 || (adapter->adhoc_start_band & BAND_AN))
471 radio_cfg->adhoc_channel =
472 DEFAULT_AD_HOC_CHANNEL_A;
473 }
474 } else { /* Retrurn error if adhoc_band and
475 adhoc_channel combination is invalid */
476 if (!mwifiex_get_cfp_by_band_and_channel_from_cfg80211
477 (priv, adapter->adhoc_start_band, (u16) adhoc_channel))
478 return -1;
479 priv->adhoc_channel = (u8) adhoc_channel;
480 }
481 if ((adhoc_band & BAND_GN) || (adhoc_band & BAND_AN))
482 adapter->adhoc_11n_enabled = true;
483 else
484 adapter->adhoc_11n_enabled = false;
485
486 return 0;
487 }
488
489 /*
490 * The function disables auto deep sleep mode.
491 */
492 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
493 {
494 struct mwifiex_ds_auto_ds auto_ds;
495
496 auto_ds.auto_ds = DEEP_SLEEP_OFF;
497
498 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
499 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds);
500 }
501 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
502
503 /*
504 * IOCTL request handler to set/get active channel.
505 *
506 * This function performs validity checking on channel/frequency
507 * compatibility and returns failure if not valid.
508 */
509 int mwifiex_bss_set_channel(struct mwifiex_private *priv,
510 struct mwifiex_chan_freq_power *chan)
511 {
512 struct mwifiex_adapter *adapter = priv->adapter;
513 struct mwifiex_chan_freq_power *cfp = NULL;
514
515 if (!chan)
516 return -1;
517
518 if (!chan->channel && !chan->freq)
519 return -1;
520 if (adapter->adhoc_start_band & BAND_AN)
521 adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN;
522 else if (adapter->adhoc_start_band & BAND_A)
523 adapter->adhoc_start_band = BAND_G | BAND_B;
524 if (chan->channel) {
525 if (chan->channel <= MAX_CHANNEL_BAND_BG)
526 cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211
527 (priv, 0, (u16) chan->channel);
528 if (!cfp) {
529 cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211
530 (priv, BAND_A, (u16) chan->channel);
531 if (cfp) {
532 if (adapter->adhoc_11n_enabled)
533 adapter->adhoc_start_band = BAND_A
534 | BAND_AN;
535 else
536 adapter->adhoc_start_band = BAND_A;
537 }
538 }
539 } else {
540 if (chan->freq <= MAX_FREQUENCY_BAND_BG)
541 cfp = mwifiex_get_cfp_by_band_and_freq_from_cfg80211(
542 priv, 0, chan->freq);
543 if (!cfp) {
544 cfp = mwifiex_get_cfp_by_band_and_freq_from_cfg80211
545 (priv, BAND_A, chan->freq);
546 if (cfp) {
547 if (adapter->adhoc_11n_enabled)
548 adapter->adhoc_start_band = BAND_A
549 | BAND_AN;
550 else
551 adapter->adhoc_start_band = BAND_A;
552 }
553 }
554 }
555 if (!cfp || !cfp->channel) {
556 dev_err(adapter->dev, "invalid channel/freq\n");
557 return -1;
558 }
559 priv->adhoc_channel = (u8) cfp->channel;
560 chan->channel = cfp->channel;
561 chan->freq = cfp->freq;
562
563 return 0;
564 }
565
566 /*
567 * IOCTL request handler to set/get Ad-Hoc channel.
568 *
569 * This function prepares the correct firmware command and
570 * issues it to set or get the ad-hoc channel.
571 */
572 static int mwifiex_bss_ioctl_ibss_channel(struct mwifiex_private *priv,
573 u16 action, u16 *channel)
574 {
575 if (action == HostCmd_ACT_GEN_GET) {
576 if (!priv->media_connected) {
577 *channel = priv->adhoc_channel;
578 return 0;
579 }
580 } else {
581 priv->adhoc_channel = (u8) *channel;
582 }
583
584 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_RF_CHANNEL,
585 action, 0, channel);
586 }
587
588 /*
589 * IOCTL request handler to find a particular BSS.
590 *
591 * The BSS can be searched with either a BSSID or a SSID. If none of
592 * these are provided, just the best BSS (best RSSI) is returned.
593 */
594 int mwifiex_bss_ioctl_find_bss(struct mwifiex_private *priv,
595 struct mwifiex_ssid_bssid *ssid_bssid)
596 {
597 struct mwifiex_adapter *adapter = priv->adapter;
598 struct mwifiex_bssdescriptor *bss_desc;
599 u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
600 u8 mac[ETH_ALEN];
601 int i = 0;
602
603 if (memcmp(ssid_bssid->bssid, zero_mac, sizeof(zero_mac))) {
604 i = mwifiex_find_bssid_in_list(priv,
605 (u8 *) ssid_bssid->bssid,
606 priv->bss_mode);
607 if (i < 0) {
608 memcpy(mac, ssid_bssid->bssid, sizeof(mac));
609 dev_err(adapter->dev, "cannot find bssid %pM\n", mac);
610 return -1;
611 }
612 bss_desc = &adapter->scan_table[i];
613 memcpy(&ssid_bssid->ssid, &bss_desc->ssid,
614 sizeof(struct mwifiex_802_11_ssid));
615 } else if (ssid_bssid->ssid.ssid_len) {
616 i = mwifiex_find_ssid_in_list(priv, &ssid_bssid->ssid, NULL,
617 priv->bss_mode);
618 if (i < 0) {
619 dev_err(adapter->dev, "cannot find ssid %s\n",
620 ssid_bssid->ssid.ssid);
621 return -1;
622 }
623 bss_desc = &adapter->scan_table[i];
624 memcpy(ssid_bssid->bssid, bss_desc->mac_address, ETH_ALEN);
625 } else {
626 return mwifiex_find_best_network(priv, ssid_bssid);
627 }
628
629 return 0;
630 }
631
632 /*
633 * IOCTL request handler to change Ad-Hoc channel.
634 *
635 * This function allocates the IOCTL request buffer, fills it
636 * with requisite parameters and calls the IOCTL handler.
637 *
638 * The function follows the following steps to perform the change -
639 * - Get current IBSS information
640 * - Get current channel
641 * - If no change is required, return
642 * - If not connected, change channel and return
643 * - If connected,
644 * - Disconnect
645 * - Change channel
646 * - Perform specific SSID scan with same SSID
647 * - Start/Join the IBSS
648 */
649 int
650 mwifiex_drv_change_adhoc_chan(struct mwifiex_private *priv, int channel)
651 {
652 int ret;
653 struct mwifiex_bss_info bss_info;
654 struct mwifiex_ssid_bssid ssid_bssid;
655 u16 curr_chan = 0;
656
657 memset(&bss_info, 0, sizeof(bss_info));
658
659 /* Get BSS information */
660 if (mwifiex_get_bss_info(priv, &bss_info))
661 return -1;
662
663 /* Get current channel */
664 ret = mwifiex_bss_ioctl_ibss_channel(priv, HostCmd_ACT_GEN_GET,
665 &curr_chan);
666
667 if (curr_chan == channel) {
668 ret = 0;
669 goto done;
670 }
671 dev_dbg(priv->adapter->dev, "cmd: updating channel from %d to %d\n",
672 curr_chan, channel);
673
674 if (!bss_info.media_connected) {
675 ret = 0;
676 goto done;
677 }
678
679 /* Do disonnect */
680 memset(&ssid_bssid, 0, ETH_ALEN);
681 ret = mwifiex_deauthenticate(priv, ssid_bssid.bssid);
682
683 ret = mwifiex_bss_ioctl_ibss_channel(priv, HostCmd_ACT_GEN_SET,
684 (u16 *) &channel);
685
686 /* Do specific SSID scanning */
687 if (mwifiex_request_scan(priv, &bss_info.ssid)) {
688 ret = -1;
689 goto done;
690 }
691 /* Start/Join Adhoc network */
692 memset(&ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid));
693 memcpy(&ssid_bssid.ssid, &bss_info.ssid,
694 sizeof(struct mwifiex_802_11_ssid));
695
696 ret = mwifiex_bss_start(priv, &ssid_bssid);
697 done:
698 return ret;
699 }
700
701 /*
702 * IOCTL request handler to get rate.
703 *
704 * This function prepares the correct firmware command and
705 * issues it to get the current rate if it is connected,
706 * otherwise, the function returns the lowest supported rate
707 * for the band.
708 */
709 static int mwifiex_rate_ioctl_get_rate_value(struct mwifiex_private *priv,
710 struct mwifiex_rate_cfg *rate_cfg)
711 {
712 struct mwifiex_adapter *adapter = priv->adapter;
713
714 rate_cfg->is_rate_auto = priv->is_data_rate_auto;
715 if (!priv->media_connected) {
716 switch (adapter->config_bands) {
717 case BAND_B:
718 /* Return the lowest supported rate for B band */
719 rate_cfg->rate = supported_rates_b[0] & 0x7f;
720 break;
721 case BAND_G:
722 case BAND_G | BAND_GN:
723 /* Return the lowest supported rate for G band */
724 rate_cfg->rate = supported_rates_g[0] & 0x7f;
725 break;
726 case BAND_B | BAND_G:
727 case BAND_A | BAND_B | BAND_G:
728 case BAND_A | BAND_B:
729 case BAND_A | BAND_B | BAND_G | BAND_AN | BAND_GN:
730 case BAND_B | BAND_G | BAND_GN:
731 /* Return the lowest supported rate for BG band */
732 rate_cfg->rate = supported_rates_bg[0] & 0x7f;
733 break;
734 case BAND_A:
735 case BAND_A | BAND_G:
736 case BAND_A | BAND_G | BAND_AN | BAND_GN:
737 case BAND_A | BAND_AN:
738 /* Return the lowest supported rate for A band */
739 rate_cfg->rate = supported_rates_a[0] & 0x7f;
740 break;
741 case BAND_GN:
742 /* Return the lowest supported rate for N band */
743 rate_cfg->rate = supported_rates_n[0] & 0x7f;
744 break;
745 default:
746 dev_warn(adapter->dev, "invalid band %#x\n",
747 adapter->config_bands);
748 break;
749 }
750 } else {
751 return mwifiex_send_cmd_sync(priv,
752 HostCmd_CMD_802_11_TX_RATE_QUERY,
753 HostCmd_ACT_GEN_GET, 0, NULL);
754 }
755
756 return 0;
757 }
758
759 /*
760 * IOCTL request handler to set rate.
761 *
762 * This function prepares the correct firmware command and
763 * issues it to set the current rate.
764 *
765 * The function also performs validation checking on the supplied value.
766 */
767 static int mwifiex_rate_ioctl_set_rate_value(struct mwifiex_private *priv,
768 struct mwifiex_rate_cfg *rate_cfg)
769 {
770 u8 rates[MWIFIEX_SUPPORTED_RATES];
771 u8 *rate;
772 int rate_index, ret;
773 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
774 u32 i;
775 struct mwifiex_adapter *adapter = priv->adapter;
776
777 if (rate_cfg->is_rate_auto) {
778 memset(bitmap_rates, 0, sizeof(bitmap_rates));
779 /* Support all HR/DSSS rates */
780 bitmap_rates[0] = 0x000F;
781 /* Support all OFDM rates */
782 bitmap_rates[1] = 0x00FF;
783 /* Support all HT-MCSs rate */
784 for (i = 0; i < ARRAY_SIZE(priv->bitmap_rates) - 3; i++)
785 bitmap_rates[i + 2] = 0xFFFF;
786 bitmap_rates[9] = 0x3FFF;
787 } else {
788 memset(rates, 0, sizeof(rates));
789 mwifiex_get_active_data_rates(priv, rates);
790 rate = rates;
791 for (i = 0; (rate[i] && i < MWIFIEX_SUPPORTED_RATES); i++) {
792 dev_dbg(adapter->dev, "info: rate=%#x wanted=%#x\n",
793 rate[i], rate_cfg->rate);
794 if ((rate[i] & 0x7f) == (rate_cfg->rate & 0x7f))
795 break;
796 }
797 if (!rate[i] || (i == MWIFIEX_SUPPORTED_RATES)) {
798 dev_err(adapter->dev, "fixed data rate %#x is out "
799 "of range\n", rate_cfg->rate);
800 return -1;
801 }
802 memset(bitmap_rates, 0, sizeof(bitmap_rates));
803
804 rate_index = mwifiex_data_rate_to_index(rate_cfg->rate);
805
806 /* Only allow b/g rates to be set */
807 if (rate_index >= MWIFIEX_RATE_INDEX_HRDSSS0 &&
808 rate_index <= MWIFIEX_RATE_INDEX_HRDSSS3) {
809 bitmap_rates[0] = 1 << rate_index;
810 } else {
811 rate_index -= 1; /* There is a 0x00 in the table */
812 if (rate_index >= MWIFIEX_RATE_INDEX_OFDM0 &&
813 rate_index <= MWIFIEX_RATE_INDEX_OFDM7)
814 bitmap_rates[1] = 1 << (rate_index -
815 MWIFIEX_RATE_INDEX_OFDM0);
816 }
817 }
818
819 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
820 HostCmd_ACT_GEN_SET, 0, bitmap_rates);
821
822 return ret;
823 }
824
825 /*
826 * IOCTL request handler to set/get rate.
827 *
828 * This function can be used to set/get either the rate value or the
829 * rate index.
830 */
831 static int mwifiex_rate_ioctl_cfg(struct mwifiex_private *priv,
832 struct mwifiex_rate_cfg *rate_cfg)
833 {
834 int status;
835
836 if (!rate_cfg)
837 return -1;
838
839 if (rate_cfg->action == HostCmd_ACT_GEN_GET)
840 status = mwifiex_rate_ioctl_get_rate_value(priv, rate_cfg);
841 else
842 status = mwifiex_rate_ioctl_set_rate_value(priv, rate_cfg);
843
844 return status;
845 }
846
847 /*
848 * Sends IOCTL request to get the data rate.
849 *
850 * This function allocates the IOCTL request buffer, fills it
851 * with requisite parameters and calls the IOCTL handler.
852 */
853 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv,
854 struct mwifiex_rate_cfg *rate)
855 {
856 int ret;
857
858 memset(rate, 0, sizeof(struct mwifiex_rate_cfg));
859 rate->action = HostCmd_ACT_GEN_GET;
860 ret = mwifiex_rate_ioctl_cfg(priv, rate);
861
862 if (!ret) {
863 if (rate && rate->is_rate_auto)
864 rate->rate = mwifiex_index_to_data_rate(priv->tx_rate,
865 priv->tx_htinfo);
866 else if (rate)
867 rate->rate = priv->data_rate;
868 } else {
869 ret = -1;
870 }
871
872 return ret;
873 }
874
875 /*
876 * IOCTL request handler to set tx power configuration.
877 *
878 * This function prepares the correct firmware command and
879 * issues it.
880 *
881 * For non-auto power mode, all the following power groups are set -
882 * - Modulation class HR/DSSS
883 * - Modulation class OFDM
884 * - Modulation class HTBW20
885 * - Modulation class HTBW40
886 */
887 int mwifiex_set_tx_power(struct mwifiex_private *priv,
888 struct mwifiex_power_cfg *power_cfg)
889 {
890 int ret;
891 struct host_cmd_ds_txpwr_cfg *txp_cfg;
892 struct mwifiex_types_power_group *pg_tlv;
893 struct mwifiex_power_group *pg;
894 u8 *buf;
895 u16 dbm = 0;
896
897 if (!power_cfg->is_power_auto) {
898 dbm = (u16) power_cfg->power_level;
899 if ((dbm < priv->min_tx_power_level) ||
900 (dbm > priv->max_tx_power_level)) {
901 dev_err(priv->adapter->dev, "txpower value %d dBm"
902 " is out of range (%d dBm-%d dBm)\n",
903 dbm, priv->min_tx_power_level,
904 priv->max_tx_power_level);
905 return -1;
906 }
907 }
908 buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
909 if (!buf) {
910 dev_err(priv->adapter->dev, "%s: failed to alloc cmd buffer\n",
911 __func__);
912 return -ENOMEM;
913 }
914
915 txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
916 txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
917 if (!power_cfg->is_power_auto) {
918 txp_cfg->mode = cpu_to_le32(1);
919 pg_tlv = (struct mwifiex_types_power_group *) (buf +
920 sizeof(struct host_cmd_ds_txpwr_cfg));
921 pg_tlv->type = TLV_TYPE_POWER_GROUP;
922 pg_tlv->length = 4 * sizeof(struct mwifiex_power_group);
923 pg = (struct mwifiex_power_group *) (buf +
924 sizeof(struct host_cmd_ds_txpwr_cfg) +
925 sizeof(struct mwifiex_types_power_group));
926 /* Power group for modulation class HR/DSSS */
927 pg->first_rate_code = 0x00;
928 pg->last_rate_code = 0x03;
929 pg->modulation_class = MOD_CLASS_HR_DSSS;
930 pg->power_step = 0;
931 pg->power_min = (s8) dbm;
932 pg->power_max = (s8) dbm;
933 pg++;
934 /* Power group for modulation class OFDM */
935 pg->first_rate_code = 0x00;
936 pg->last_rate_code = 0x07;
937 pg->modulation_class = MOD_CLASS_OFDM;
938 pg->power_step = 0;
939 pg->power_min = (s8) dbm;
940 pg->power_max = (s8) dbm;
941 pg++;
942 /* Power group for modulation class HTBW20 */
943 pg->first_rate_code = 0x00;
944 pg->last_rate_code = 0x20;
945 pg->modulation_class = MOD_CLASS_HT;
946 pg->power_step = 0;
947 pg->power_min = (s8) dbm;
948 pg->power_max = (s8) dbm;
949 pg->ht_bandwidth = HT_BW_20;
950 pg++;
951 /* Power group for modulation class HTBW40 */
952 pg->first_rate_code = 0x00;
953 pg->last_rate_code = 0x20;
954 pg->modulation_class = MOD_CLASS_HT;
955 pg->power_step = 0;
956 pg->power_min = (s8) dbm;
957 pg->power_max = (s8) dbm;
958 pg->ht_bandwidth = HT_BW_40;
959 }
960 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TXPWR_CFG,
961 HostCmd_ACT_GEN_SET, 0, buf);
962
963 kfree(buf);
964 return ret;
965 }
966
967 /*
968 * IOCTL request handler to get power save mode.
969 *
970 * This function prepares the correct firmware command and
971 * issues it.
972 */
973 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
974 {
975 int ret;
976 struct mwifiex_adapter *adapter = priv->adapter;
977 u16 sub_cmd;
978
979 if (*ps_mode)
980 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
981 else
982 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
983 sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
984 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
985 sub_cmd, BITMAP_STA_PS, NULL);
986 if ((!ret) && (sub_cmd == DIS_AUTO_PS))
987 ret = mwifiex_send_cmd_async(priv,
988 HostCmd_CMD_802_11_PS_MODE_ENH, GET_PS,
989 0, NULL);
990
991 return ret;
992 }
993
994 /*
995 * IOCTL request handler to set/reset WPA IE.
996 *
997 * The supplied WPA IE is treated as a opaque buffer. Only the first field
998 * is checked to determine WPA version. If buffer length is zero, the existing
999 * WPA IE is reset.
1000 */
1001 static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
1002 u8 *ie_data_ptr, u16 ie_len)
1003 {
1004 if (ie_len) {
1005 if (ie_len > sizeof(priv->wpa_ie)) {
1006 dev_err(priv->adapter->dev,
1007 "failed to copy WPA IE, too big\n");
1008 return -1;
1009 }
1010 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
1011 priv->wpa_ie_len = (u8) ie_len;
1012 dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n",
1013 priv->wpa_ie_len, priv->wpa_ie[0]);
1014
1015 if (priv->wpa_ie[0] == WLAN_EID_WPA) {
1016 priv->sec_info.wpa_enabled = true;
1017 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
1018 priv->sec_info.wpa2_enabled = true;
1019 } else {
1020 priv->sec_info.wpa_enabled = false;
1021 priv->sec_info.wpa2_enabled = false;
1022 }
1023 } else {
1024 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
1025 priv->wpa_ie_len = 0;
1026 dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n",
1027 priv->wpa_ie_len, priv->wpa_ie[0]);
1028 priv->sec_info.wpa_enabled = false;
1029 priv->sec_info.wpa2_enabled = false;
1030 }
1031
1032 return 0;
1033 }
1034
1035 /*
1036 * IOCTL request handler to set/reset WAPI IE.
1037 *
1038 * The supplied WAPI IE is treated as a opaque buffer. Only the first field
1039 * is checked to internally enable WAPI. If buffer length is zero, the existing
1040 * WAPI IE is reset.
1041 */
1042 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
1043 u8 *ie_data_ptr, u16 ie_len)
1044 {
1045 if (ie_len) {
1046 if (ie_len > sizeof(priv->wapi_ie)) {
1047 dev_dbg(priv->adapter->dev,
1048 "info: failed to copy WAPI IE, too big\n");
1049 return -1;
1050 }
1051 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
1052 priv->wapi_ie_len = ie_len;
1053 dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n",
1054 priv->wapi_ie_len, priv->wapi_ie[0]);
1055
1056 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
1057 priv->sec_info.wapi_enabled = true;
1058 } else {
1059 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
1060 priv->wapi_ie_len = ie_len;
1061 dev_dbg(priv->adapter->dev,
1062 "info: Reset wapi_ie_len=%d IE=%#x\n",
1063 priv->wapi_ie_len, priv->wapi_ie[0]);
1064 priv->sec_info.wapi_enabled = false;
1065 }
1066 return 0;
1067 }
1068
1069 /*
1070 * IOCTL request handler to set WAPI key.
1071 *
1072 * This function prepares the correct firmware command and
1073 * issues it.
1074 */
1075 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
1076 struct mwifiex_ds_encrypt_key *encrypt_key)
1077 {
1078
1079 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1080 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
1081 encrypt_key);
1082 }
1083
1084 /*
1085 * IOCTL request handler to set WEP network key.
1086 *
1087 * This function prepares the correct firmware command and
1088 * issues it, after validation checks.
1089 */
1090 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
1091 struct mwifiex_ds_encrypt_key *encrypt_key)
1092 {
1093 int ret;
1094 struct mwifiex_wep_key *wep_key;
1095 int index;
1096
1097 if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
1098 priv->wep_key_curr_index = 0;
1099 wep_key = &priv->wep_key[priv->wep_key_curr_index];
1100 index = encrypt_key->key_index;
1101 if (encrypt_key->key_disable) {
1102 priv->sec_info.wep_status = MWIFIEX_802_11_WEP_DISABLED;
1103 } else if (!encrypt_key->key_len) {
1104 /* Copy the required key as the current key */
1105 wep_key = &priv->wep_key[index];
1106 if (!wep_key->key_length) {
1107 dev_err(priv->adapter->dev,
1108 "key not set, so cannot enable it\n");
1109 return -1;
1110 }
1111 priv->wep_key_curr_index = (u16) index;
1112 priv->sec_info.wep_status = MWIFIEX_802_11_WEP_ENABLED;
1113 } else {
1114 wep_key = &priv->wep_key[index];
1115 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
1116 /* Copy the key in the driver */
1117 memcpy(wep_key->key_material,
1118 encrypt_key->key_material,
1119 encrypt_key->key_len);
1120 wep_key->key_index = index;
1121 wep_key->key_length = encrypt_key->key_len;
1122 priv->sec_info.wep_status = MWIFIEX_802_11_WEP_ENABLED;
1123 }
1124 if (wep_key->key_length) {
1125 /* Send request to firmware */
1126 ret = mwifiex_send_cmd_async(priv,
1127 HostCmd_CMD_802_11_KEY_MATERIAL,
1128 HostCmd_ACT_GEN_SET, 0, NULL);
1129 if (ret)
1130 return ret;
1131 }
1132 if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_ENABLED)
1133 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1134 else
1135 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1136
1137 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1138 HostCmd_ACT_GEN_SET, 0,
1139 &priv->curr_pkt_filter);
1140
1141 return ret;
1142 }
1143
1144 /*
1145 * IOCTL request handler to set WPA key.
1146 *
1147 * This function prepares the correct firmware command and
1148 * issues it, after validation checks.
1149 *
1150 * Current driver only supports key length of up to 32 bytes.
1151 *
1152 * This function can also be used to disable a currently set key.
1153 */
1154 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
1155 struct mwifiex_ds_encrypt_key *encrypt_key)
1156 {
1157 int ret;
1158 u8 remove_key = false;
1159 struct host_cmd_ds_802_11_key_material *ibss_key;
1160
1161 /* Current driver only supports key length of up to 32 bytes */
1162 if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
1163 dev_err(priv->adapter->dev, "key length too long\n");
1164 return -1;
1165 }
1166
1167 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1168 /*
1169 * IBSS/WPA-None uses only one key (Group) for both receiving
1170 * and sending unicast and multicast packets.
1171 */
1172 /* Send the key as PTK to firmware */
1173 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1174 ret = mwifiex_send_cmd_async(priv,
1175 HostCmd_CMD_802_11_KEY_MATERIAL,
1176 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
1177 encrypt_key);
1178 if (ret)
1179 return ret;
1180
1181 ibss_key = &priv->aes_key;
1182 memset(ibss_key, 0,
1183 sizeof(struct host_cmd_ds_802_11_key_material));
1184 /* Copy the key in the driver */
1185 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
1186 encrypt_key->key_len);
1187 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
1188 sizeof(ibss_key->key_param_set.key_len));
1189 ibss_key->key_param_set.key_type_id
1190 = cpu_to_le16(KEY_TYPE_ID_TKIP);
1191 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
1192
1193 /* Send the key as GTK to firmware */
1194 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
1195 }
1196
1197 if (!encrypt_key->key_index)
1198 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1199
1200 if (remove_key)
1201 ret = mwifiex_send_cmd_sync(priv,
1202 HostCmd_CMD_802_11_KEY_MATERIAL,
1203 HostCmd_ACT_GEN_SET, !(KEY_INFO_ENABLED),
1204 encrypt_key);
1205 else
1206 ret = mwifiex_send_cmd_sync(priv,
1207 HostCmd_CMD_802_11_KEY_MATERIAL,
1208 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
1209 encrypt_key);
1210
1211 return ret;
1212 }
1213
1214 /*
1215 * IOCTL request handler to set/get network keys.
1216 *
1217 * This is a generic key handling function which supports WEP, WPA
1218 * and WAPI.
1219 */
1220 static int
1221 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
1222 struct mwifiex_ds_encrypt_key *encrypt_key)
1223 {
1224 int status;
1225
1226 if (encrypt_key->is_wapi_key)
1227 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
1228 else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
1229 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
1230 else
1231 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
1232 return status;
1233 }
1234
1235 /*
1236 * This function returns the driver version.
1237 */
1238 int
1239 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
1240 int max_len)
1241 {
1242 union {
1243 u32 l;
1244 u8 c[4];
1245 } ver;
1246 char fw_ver[32];
1247
1248 ver.l = adapter->fw_release_number;
1249 sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
1250
1251 snprintf(version, max_len, driver_version, fw_ver);
1252
1253 dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version);
1254
1255 return 0;
1256 }
1257
1258 /*
1259 * Sends IOCTL request to get signal information.
1260 *
1261 * This function allocates the IOCTL request buffer, fills it
1262 * with requisite parameters and calls the IOCTL handler.
1263 */
1264 int mwifiex_get_signal_info(struct mwifiex_private *priv,
1265 struct mwifiex_ds_get_signal *signal)
1266 {
1267 int status;
1268
1269 signal->selector = ALL_RSSI_INFO_MASK;
1270
1271 /* Signal info can be obtained only if connected */
1272 if (!priv->media_connected) {
1273 dev_dbg(priv->adapter->dev,
1274 "info: Can not get signal in disconnected state\n");
1275 return -1;
1276 }
1277
1278 status = mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
1279 HostCmd_ACT_GEN_GET, 0, signal);
1280
1281 if (!status) {
1282 if (signal->selector & BCN_RSSI_AVG_MASK)
1283 priv->qual_level = signal->bcn_rssi_avg;
1284 if (signal->selector & BCN_NF_AVG_MASK)
1285 priv->qual_noise = signal->bcn_nf_avg;
1286 }
1287
1288 return status;
1289 }
1290
1291 /*
1292 * Sends IOCTL request to set encoding parameters.
1293 *
1294 * This function allocates the IOCTL request buffer, fills it
1295 * with requisite parameters and calls the IOCTL handler.
1296 */
1297 int mwifiex_set_encode(struct mwifiex_private *priv, const u8 *key,
1298 int key_len, u8 key_index, int disable)
1299 {
1300 struct mwifiex_ds_encrypt_key encrypt_key;
1301
1302 memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
1303 encrypt_key.key_len = key_len;
1304 if (!disable) {
1305 encrypt_key.key_index = key_index;
1306 if (key_len)
1307 memcpy(encrypt_key.key_material, key, key_len);
1308 } else {
1309 encrypt_key.key_disable = true;
1310 }
1311
1312 return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1313 }
1314
1315 /*
1316 * Sends IOCTL request to get extended version.
1317 *
1318 * This function allocates the IOCTL request buffer, fills it
1319 * with requisite parameters and calls the IOCTL handler.
1320 */
1321 int
1322 mwifiex_get_ver_ext(struct mwifiex_private *priv)
1323 {
1324 struct mwifiex_ver_ext ver_ext;
1325
1326 memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1327 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_VERSION_EXT,
1328 HostCmd_ACT_GEN_GET, 0, &ver_ext))
1329 return -1;
1330
1331 return 0;
1332 }
1333
1334 /*
1335 * Sends IOCTL request to get statistics information.
1336 *
1337 * This function allocates the IOCTL request buffer, fills it
1338 * with requisite parameters and calls the IOCTL handler.
1339 */
1340 int
1341 mwifiex_get_stats_info(struct mwifiex_private *priv,
1342 struct mwifiex_ds_get_stats *log)
1343 {
1344 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG,
1345 HostCmd_ACT_GEN_GET, 0, log);
1346 }
1347
1348 /*
1349 * IOCTL request handler to read/write register.
1350 *
1351 * This function prepares the correct firmware command and
1352 * issues it.
1353 *
1354 * Access to the following registers are supported -
1355 * - MAC
1356 * - BBP
1357 * - RF
1358 * - PMIC
1359 * - CAU
1360 */
1361 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1362 struct mwifiex_ds_reg_rw *reg_rw,
1363 u16 action)
1364 {
1365 u16 cmd_no;
1366
1367 switch (le32_to_cpu(reg_rw->type)) {
1368 case MWIFIEX_REG_MAC:
1369 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1370 break;
1371 case MWIFIEX_REG_BBP:
1372 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1373 break;
1374 case MWIFIEX_REG_RF:
1375 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1376 break;
1377 case MWIFIEX_REG_PMIC:
1378 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1379 break;
1380 case MWIFIEX_REG_CAU:
1381 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1382 break;
1383 default:
1384 return -1;
1385 }
1386
1387 return mwifiex_send_cmd_sync(priv, cmd_no, action, 0, reg_rw);
1388
1389 }
1390
1391 /*
1392 * Sends IOCTL request to write to a register.
1393 *
1394 * This function allocates the IOCTL request buffer, fills it
1395 * with requisite parameters and calls the IOCTL handler.
1396 */
1397 int
1398 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1399 u32 reg_offset, u32 reg_value)
1400 {
1401 struct mwifiex_ds_reg_rw reg_rw;
1402
1403 reg_rw.type = cpu_to_le32(reg_type);
1404 reg_rw.offset = cpu_to_le32(reg_offset);
1405 reg_rw.value = cpu_to_le32(reg_value);
1406
1407 return mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_SET);
1408 }
1409
1410 /*
1411 * Sends IOCTL request to read from a register.
1412 *
1413 * This function allocates the IOCTL request buffer, fills it
1414 * with requisite parameters and calls the IOCTL handler.
1415 */
1416 int
1417 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1418 u32 reg_offset, u32 *value)
1419 {
1420 int ret;
1421 struct mwifiex_ds_reg_rw reg_rw;
1422
1423 reg_rw.type = cpu_to_le32(reg_type);
1424 reg_rw.offset = cpu_to_le32(reg_offset);
1425 ret = mwifiex_reg_mem_ioctl_reg_rw(priv, &reg_rw, HostCmd_ACT_GEN_GET);
1426
1427 if (ret)
1428 goto done;
1429
1430 *value = le32_to_cpu(reg_rw.value);
1431
1432 done:
1433 return ret;
1434 }
1435
1436 /*
1437 * Sends IOCTL request to read from EEPROM.
1438 *
1439 * This function allocates the IOCTL request buffer, fills it
1440 * with requisite parameters and calls the IOCTL handler.
1441 */
1442 int
1443 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1444 u8 *value)
1445 {
1446 int ret;
1447 struct mwifiex_ds_read_eeprom rd_eeprom;
1448
1449 rd_eeprom.offset = cpu_to_le16((u16) offset);
1450 rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
1451
1452 /* Send request to firmware */
1453 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1454 HostCmd_ACT_GEN_GET, 0, &rd_eeprom);
1455
1456 if (!ret)
1457 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1458 return ret;
1459 }
1460
1461 /*
1462 * This function sets a generic IE. In addition to generic IE, it can
1463 * also handle WPA, WPA2 and WAPI IEs.
1464 */
1465 static int
1466 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1467 u16 ie_len)
1468 {
1469 int ret = 0;
1470 struct ieee_types_vendor_header *pvendor_ie;
1471 const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1472 const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1473
1474 /* If the passed length is zero, reset the buffer */
1475 if (!ie_len) {
1476 priv->gen_ie_buf_len = 0;
1477 priv->wps.session_enable = false;
1478
1479 return 0;
1480 } else if (!ie_data_ptr) {
1481 return -1;
1482 }
1483 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1484 /* Test to see if it is a WPA IE, if not, then it is a gen IE */
1485 if (((pvendor_ie->element_id == WLAN_EID_WPA)
1486 && (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui))))
1487 || (pvendor_ie->element_id == WLAN_EID_RSN)) {
1488
1489 /* IE is a WPA/WPA2 IE so call set_wpa function */
1490 ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
1491 priv->wps.session_enable = false;
1492
1493 return ret;
1494 } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1495 /* IE is a WAPI IE so call set_wapi function */
1496 ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);
1497
1498 return ret;
1499 }
1500 /*
1501 * Verify that the passed length is not larger than the
1502 * available space remaining in the buffer
1503 */
1504 if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1505
1506 /* Test to see if it is a WPS IE, if so, enable
1507 * wps session flag
1508 */
1509 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1510 if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC)
1511 && (!memcmp(pvendor_ie->oui, wps_oui,
1512 sizeof(wps_oui)))) {
1513 priv->wps.session_enable = true;
1514 dev_dbg(priv->adapter->dev,
1515 "info: WPS Session Enabled.\n");
1516 }
1517
1518 /* Append the passed data to the end of the
1519 genIeBuffer */
1520 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1521 ie_len);
1522 /* Increment the stored buffer length by the
1523 size passed */
1524 priv->gen_ie_buf_len += ie_len;
1525 } else {
1526 /* Passed data does not fit in the remaining
1527 buffer space */
1528 ret = -1;
1529 }
1530
1531 /* Return 0, or -1 for error case */
1532 return ret;
1533 }
1534
1535 /*
1536 * IOCTL request handler to set/get generic IE.
1537 *
1538 * In addition to various generic IEs, this function can also be
1539 * used to set the ARP filter.
1540 */
1541 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1542 struct mwifiex_ds_misc_gen_ie *gen_ie,
1543 u16 action)
1544 {
1545 struct mwifiex_adapter *adapter = priv->adapter;
1546
1547 switch (gen_ie->type) {
1548 case MWIFIEX_IE_TYPE_GEN_IE:
1549 if (action == HostCmd_ACT_GEN_GET) {
1550 gen_ie->len = priv->wpa_ie_len;
1551 memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1552 } else {
1553 mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1554 (u16) gen_ie->len);
1555 }
1556 break;
1557 case MWIFIEX_IE_TYPE_ARP_FILTER:
1558 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1559 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1560 adapter->arp_filter_size = 0;
1561 dev_err(adapter->dev, "invalid ARP filter size\n");
1562 return -1;
1563 } else {
1564 memcpy(adapter->arp_filter, gen_ie->ie_data,
1565 gen_ie->len);
1566 adapter->arp_filter_size = gen_ie->len;
1567 }
1568 break;
1569 default:
1570 dev_err(adapter->dev, "invalid IE type\n");
1571 return -1;
1572 }
1573 return 0;
1574 }
1575
1576 /*
1577 * Sends IOCTL request to set a generic IE.
1578 *
1579 * This function allocates the IOCTL request buffer, fills it
1580 * with requisite parameters and calls the IOCTL handler.
1581 */
1582 int
1583 mwifiex_set_gen_ie(struct mwifiex_private *priv, u8 *ie, int ie_len)
1584 {
1585 struct mwifiex_ds_misc_gen_ie gen_ie;
1586
1587 if (ie_len > IEEE_MAX_IE_SIZE)
1588 return -EFAULT;
1589
1590 gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1591 gen_ie.len = ie_len;
1592 memcpy(gen_ie.ie_data, ie, ie_len);
1593 if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1594 return -EFAULT;
1595
1596 return 0;
1597 }
Linux kernel - Deliverables
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