/drivers/net/wireless/mwifiex/sta_ioctl.c
C | 1593 lines | 1066 code | 179 blank | 348 comment | 199 complexity | 09b0985c95983bd212e3dbec2be3b970 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
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 */
36int 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 */
54int 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 */
87int 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 */
149int 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 */
238int 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 */
321int 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}
331EXPORT_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 */
339int 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}
366EXPORT_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 */
374int 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 */
435int 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 * IOCTL request handler to set/get active channel.
491 *
492 * This function performs validity checking on channel/frequency
493 * compatibility and returns failure if not valid.
494 */
495int mwifiex_bss_set_channel(struct mwifiex_private *priv,
496 struct mwifiex_chan_freq_power *chan)
497{
498 struct mwifiex_adapter *adapter = priv->adapter;
499 struct mwifiex_chan_freq_power *cfp = NULL;
500
501 if (!chan)
502 return -1;
503
504 if (!chan->channel && !chan->freq)
505 return -1;
506 if (adapter->adhoc_start_band & BAND_AN)
507 adapter->adhoc_start_band = BAND_G | BAND_B | BAND_GN;
508 else if (adapter->adhoc_start_band & BAND_A)
509 adapter->adhoc_start_band = BAND_G | BAND_B;
510 if (chan->channel) {
511 if (chan->channel <= MAX_CHANNEL_BAND_BG)
512 cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211
513 (priv, 0, (u16) chan->channel);
514 if (!cfp) {
515 cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211
516 (priv, BAND_A, (u16) chan->channel);
517 if (cfp) {
518 if (adapter->adhoc_11n_enabled)
519 adapter->adhoc_start_band = BAND_A
520 | BAND_AN;
521 else
522 adapter->adhoc_start_band = BAND_A;
523 }
524 }
525 } else {
526 if (chan->freq <= MAX_FREQUENCY_BAND_BG)
527 cfp = mwifiex_get_cfp_by_band_and_freq_from_cfg80211(
528 priv, 0, chan->freq);
529 if (!cfp) {
530 cfp = mwifiex_get_cfp_by_band_and_freq_from_cfg80211
531 (priv, BAND_A, chan->freq);
532 if (cfp) {
533 if (adapter->adhoc_11n_enabled)
534 adapter->adhoc_start_band = BAND_A
535 | BAND_AN;
536 else
537 adapter->adhoc_start_band = BAND_A;
538 }
539 }
540 }
541 if (!cfp || !cfp->channel) {
542 dev_err(adapter->dev, "invalid channel/freq\n");
543 return -1;
544 }
545 priv->adhoc_channel = (u8) cfp->channel;
546 chan->channel = cfp->channel;
547 chan->freq = cfp->freq;
548
549 return 0;
550}
551
552/*
553 * IOCTL request handler to set/get Ad-Hoc channel.
554 *
555 * This function prepares the correct firmware command and
556 * issues it to set or get the ad-hoc channel.
557 */
558static int mwifiex_bss_ioctl_ibss_channel(struct mwifiex_private *priv,
559 u16 action, u16 *channel)
560{
561 if (action == HostCmd_ACT_GEN_GET) {
562 if (!priv->media_connected) {
563 *channel = priv->adhoc_channel;
564 return 0;
565 }
566 } else {
567 priv->adhoc_channel = (u8) *channel;
568 }
569
570 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_RF_CHANNEL,
571 action, 0, channel);
572}
573
574/*
575 * IOCTL request handler to find a particular BSS.
576 *
577 * The BSS can be searched with either a BSSID or a SSID. If none of
578 * these are provided, just the best BSS (best RSSI) is returned.
579 */
580int mwifiex_bss_ioctl_find_bss(struct mwifiex_private *priv,
581 struct mwifiex_ssid_bssid *ssid_bssid)
582{
583 struct mwifiex_adapter *adapter = priv->adapter;
584 struct mwifiex_bssdescriptor *bss_desc;
585 u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
586 u8 mac[ETH_ALEN];
587 int i = 0;
588
589 if (memcmp(ssid_bssid->bssid, zero_mac, sizeof(zero_mac))) {
590 i = mwifiex_find_bssid_in_list(priv,
591 (u8 *) ssid_bssid->bssid,
592 priv->bss_mode);
593 if (i < 0) {
594 memcpy(mac, ssid_bssid->bssid, sizeof(mac));
595 dev_err(adapter->dev, "cannot find bssid %pM\n", mac);
596 return -1;
597 }
598 bss_desc = &adapter->scan_table[i];
599 memcpy(&ssid_bssid->ssid, &bss_desc->ssid,
600 sizeof(struct mwifiex_802_11_ssid));
601 } else if (ssid_bssid->ssid.ssid_len) {
602 i = mwifiex_find_ssid_in_list(priv, &ssid_bssid->ssid, NULL,
603 priv->bss_mode);
604 if (i < 0) {
605 dev_err(adapter->dev, "cannot find ssid %s\n",
606 ssid_bssid->ssid.ssid);
607 return -1;
608 }
609 bss_desc = &adapter->scan_table[i];
610 memcpy(ssid_bssid->bssid, bss_desc->mac_address, ETH_ALEN);
611 } else {
612 return mwifiex_find_best_network(priv, ssid_bssid);
613 }
614
615 return 0;
616}
617
618/*
619 * IOCTL request handler to change Ad-Hoc channel.
620 *
621 * This function allocates the IOCTL request buffer, fills it
622 * with requisite parameters and calls the IOCTL handler.
623 *
624 * The function follows the following steps to perform the change -
625 * - Get current IBSS information
626 * - Get current channel
627 * - If no change is required, return
628 * - If not connected, change channel and return
629 * - If connected,
630 * - Disconnect
631 * - Change channel
632 * - Perform specific SSID scan with same SSID
633 * - Start/Join the IBSS
634 */
635int
636mwifiex_drv_change_adhoc_chan(struct mwifiex_private *priv, int channel)
637{
638 int ret;
639 struct mwifiex_bss_info bss_info;
640 struct mwifiex_ssid_bssid ssid_bssid;
641 u16 curr_chan = 0;
642
643 memset(&bss_info, 0, sizeof(bss_info));
644
645 /* Get BSS information */
646 if (mwifiex_get_bss_info(priv, &bss_info))
647 return -1;
648
649 /* Get current channel */
650 ret = mwifiex_bss_ioctl_ibss_channel(priv, HostCmd_ACT_GEN_GET,
651 &curr_chan);
652
653 if (curr_chan == channel) {
654 ret = 0;
655 goto done;
656 }
657 dev_dbg(priv->adapter->dev, "cmd: updating channel from %d to %d\n",
658 curr_chan, channel);
659
660 if (!bss_info.media_connected) {
661 ret = 0;
662 goto done;
663 }
664
665 /* Do disonnect */
666 memset(&ssid_bssid, 0, ETH_ALEN);
667 ret = mwifiex_deauthenticate(priv, ssid_bssid.bssid);
668
669 ret = mwifiex_bss_ioctl_ibss_channel(priv, HostCmd_ACT_GEN_SET,
670 (u16 *) &channel);
671
672 /* Do specific SSID scanning */
673 if (mwifiex_request_scan(priv, &bss_info.ssid)) {
674 ret = -1;
675 goto done;
676 }
677 /* Start/Join Adhoc network */
678 memset(&ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid));
679 memcpy(&ssid_bssid.ssid, &bss_info.ssid,
680 sizeof(struct mwifiex_802_11_ssid));
681
682 ret = mwifiex_bss_start(priv, &ssid_bssid);
683done:
684 return ret;
685}
686
687/*
688 * IOCTL request handler to get rate.
689 *
690 * This function prepares the correct firmware command and
691 * issues it to get the current rate if it is connected,
692 * otherwise, the function returns the lowest supported rate
693 * for the band.
694 */
695static int mwifiex_rate_ioctl_get_rate_value(struct mwifiex_private *priv,
696 struct mwifiex_rate_cfg *rate_cfg)
697{
698 struct mwifiex_adapter *adapter = priv->adapter;
699
700 rate_cfg->is_rate_auto = priv->is_data_rate_auto;
701 if (!priv->media_connected) {
702 switch (adapter->config_bands) {
703 case BAND_B:
704 /* Return the lowest supported rate for B band */
705 rate_cfg->rate = supported_rates_b[0] & 0x7f;
706 break;
707 case BAND_G:
708 case BAND_G | BAND_GN:
709 /* Return the lowest supported rate for G band */
710 rate_cfg->rate = supported_rates_g[0] & 0x7f;
711 break;
712 case BAND_B | BAND_G:
713 case BAND_A | BAND_B | BAND_G:
714 case BAND_A | BAND_B:
715 case BAND_A | BAND_B | BAND_G | BAND_AN | BAND_GN:
716 case BAND_B | BAND_G | BAND_GN:
717 /* Return the lowest supported rate for BG band */
718 rate_cfg->rate = supported_rates_bg[0] & 0x7f;
719 break;
720 case BAND_A:
721 case BAND_A | BAND_G:
722 case BAND_A | BAND_G | BAND_AN | BAND_GN:
723 case BAND_A | BAND_AN:
724 /* Return the lowest supported rate for A band */
725 rate_cfg->rate = supported_rates_a[0] & 0x7f;
726 break;
727 case BAND_GN:
728 /* Return the lowest supported rate for N band */
729 rate_cfg->rate = supported_rates_n[0] & 0x7f;
730 break;
731 default:
732 dev_warn(adapter->dev, "invalid band %#x\n",
733 adapter->config_bands);
734 break;
735 }
736 } else {
737 return mwifiex_send_cmd_sync(priv,
738 HostCmd_CMD_802_11_TX_RATE_QUERY,
739 HostCmd_ACT_GEN_GET, 0, NULL);
740 }
741
742 return 0;
743}
744
745/*
746 * IOCTL request handler to set rate.
747 *
748 * This function prepares the correct firmware command and
749 * issues it to set the current rate.
750 *
751 * The function also performs validation checking on the supplied value.
752 */
753static int mwifiex_rate_ioctl_set_rate_value(struct mwifiex_private *priv,
754 struct mwifiex_rate_cfg *rate_cfg)
755{
756 u8 rates[MWIFIEX_SUPPORTED_RATES];
757 u8 *rate;
758 int rate_index, ret;
759 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
760 u32 i;
761 struct mwifiex_adapter *adapter = priv->adapter;
762
763 if (rate_cfg->is_rate_auto) {
764 memset(bitmap_rates, 0, sizeof(bitmap_rates));
765 /* Support all HR/DSSS rates */
766 bitmap_rates[0] = 0x000F;
767 /* Support all OFDM rates */
768 bitmap_rates[1] = 0x00FF;
769 /* Support all HT-MCSs rate */
770 for (i = 0; i < ARRAY_SIZE(priv->bitmap_rates) - 3; i++)
771 bitmap_rates[i + 2] = 0xFFFF;
772 bitmap_rates[9] = 0x3FFF;
773 } else {
774 memset(rates, 0, sizeof(rates));
775 mwifiex_get_active_data_rates(priv, rates);
776 rate = rates;
777 for (i = 0; (rate[i] && i < MWIFIEX_SUPPORTED_RATES); i++) {
778 dev_dbg(adapter->dev, "info: rate=%#x wanted=%#x\n",
779 rate[i], rate_cfg->rate);
780 if ((rate[i] & 0x7f) == (rate_cfg->rate & 0x7f))
781 break;
782 }
783 if (!rate[i] || (i == MWIFIEX_SUPPORTED_RATES)) {
784 dev_err(adapter->dev, "fixed data rate %#x is out "
785 "of range\n", rate_cfg->rate);
786 return -1;
787 }
788 memset(bitmap_rates, 0, sizeof(bitmap_rates));
789
790 rate_index = mwifiex_data_rate_to_index(rate_cfg->rate);
791
792 /* Only allow b/g rates to be set */
793 if (rate_index >= MWIFIEX_RATE_INDEX_HRDSSS0 &&
794 rate_index <= MWIFIEX_RATE_INDEX_HRDSSS3) {
795 bitmap_rates[0] = 1 << rate_index;
796 } else {
797 rate_index -= 1; /* There is a 0x00 in the table */
798 if (rate_index >= MWIFIEX_RATE_INDEX_OFDM0 &&
799 rate_index <= MWIFIEX_RATE_INDEX_OFDM7)
800 bitmap_rates[1] = 1 << (rate_index -
801 MWIFIEX_RATE_INDEX_OFDM0);
802 }
803 }
804
805 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
806 HostCmd_ACT_GEN_SET, 0, bitmap_rates);
807
808 return ret;
809}
810
811/*
812 * IOCTL request handler to set/get rate.
813 *
814 * This function can be used to set/get either the rate value or the
815 * rate index.
816 */
817static int mwifiex_rate_ioctl_cfg(struct mwifiex_private *priv,
818 struct mwifiex_rate_cfg *rate_cfg)
819{
820 int status;
821
822 if (!rate_cfg)
823 return -1;
824
825 if (rate_cfg->action == HostCmd_ACT_GEN_GET)
826 status = mwifiex_rate_ioctl_get_rate_value(priv, rate_cfg);
827 else
828 status = mwifiex_rate_ioctl_set_rate_value(priv, rate_cfg);
829
830 return status;
831}
832
833/*
834 * Sends IOCTL request to get the data rate.
835 *
836 * This function allocates the IOCTL request buffer, fills it
837 * with requisite parameters and calls the IOCTL handler.
838 */
839int mwifiex_drv_get_data_rate(struct mwifiex_private *priv,
840 struct mwifiex_rate_cfg *rate)
841{
842 int ret;
843
844 memset(rate, 0, sizeof(struct mwifiex_rate_cfg));
845 rate->action = HostCmd_ACT_GEN_GET;
846 ret = mwifiex_rate_ioctl_cfg(priv, rate);
847
848 if (!ret) {
849 if (rate && rate->is_rate_auto)
850 rate->rate = mwifiex_index_to_data_rate(priv->tx_rate,
851 priv->tx_htinfo);
852 else if (rate)
853 rate->rate = priv->data_rate;
854 } else {
855 ret = -1;
856 }
857
858 return ret;
859}
860
861/*
862 * IOCTL request handler to set tx power configuration.
863 *
864 * This function prepares the correct firmware command and
865 * issues it.
866 *
867 * For non-auto power mode, all the following power groups are set -
868 * - Modulation class HR/DSSS
869 * - Modulation class OFDM
870 * - Modulation class HTBW20
871 * - Modulation class HTBW40
872 */
873int mwifiex_set_tx_power(struct mwifiex_private *priv,
874 struct mwifiex_power_cfg *power_cfg)
875{
876 int ret;
877 struct host_cmd_ds_txpwr_cfg *txp_cfg;
878 struct mwifiex_types_power_group *pg_tlv;
879 struct mwifiex_power_group *pg;
880 u8 *buf;
881 u16 dbm = 0;
882
883 if (!power_cfg->is_power_auto) {
884 dbm = (u16) power_cfg->power_level;
885 if ((dbm < priv->min_tx_power_level) ||
886 (dbm > priv->max_tx_power_level)) {
887 dev_err(priv->adapter->dev, "txpower value %d dBm"
888 " is out of range (%d dBm-%d dBm)\n",
889 dbm, priv->min_tx_power_level,
890 priv->max_tx_power_level);
891 return -1;
892 }
893 }
894 buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
895 if (!buf) {
896 dev_err(priv->adapter->dev, "%s: failed to alloc cmd buffer\n",
897 __func__);
898 return -ENOMEM;
899 }
900
901 txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
902 txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
903 if (!power_cfg->is_power_auto) {
904 txp_cfg->mode = cpu_to_le32(1);
905 pg_tlv = (struct mwifiex_types_power_group *) (buf +
906 sizeof(struct host_cmd_ds_txpwr_cfg));
907 pg_tlv->type = TLV_TYPE_POWER_GROUP;
908 pg_tlv->length = 4 * sizeof(struct mwifiex_power_group);
909 pg = (struct mwifiex_power_group *) (buf +
910 sizeof(struct host_cmd_ds_txpwr_cfg) +
911 sizeof(struct mwifiex_types_power_group));
912 /* Power group for modulation class HR/DSSS */
913 pg->first_rate_code = 0x00;
914 pg->last_rate_code = 0x03;
915 pg->modulation_class = MOD_CLASS_HR_DSSS;
916 pg->power_step = 0;
917 pg->power_min = (s8) dbm;
918 pg->power_max = (s8) dbm;
919 pg++;
920 /* Power group for modulation class OFDM */
921 pg->first_rate_code = 0x00;
922 pg->last_rate_code = 0x07;
923 pg->modulation_class = MOD_CLASS_OFDM;
924 pg->power_step = 0;
925 pg->power_min = (s8) dbm;
926 pg->power_max = (s8) dbm;
927 pg++;
928 /* Power group for modulation class HTBW20 */
929 pg->first_rate_code = 0x00;
930 pg->last_rate_code = 0x20;
931 pg->modulation_class = MOD_CLASS_HT;
932 pg->power_step = 0;
933 pg->power_min = (s8) dbm;
934 pg->power_max = (s8) dbm;
935 pg->ht_bandwidth = HT_BW_20;
936 pg++;
937 /* Power group for modulation class HTBW40 */
938 pg->first_rate_code = 0x00;
939 pg->last_rate_code = 0x20;
940 pg->modulation_class = MOD_CLASS_HT;
941 pg->power_step = 0;
942 pg->power_min = (s8) dbm;
943 pg->power_max = (s8) dbm;
944 pg->ht_bandwidth = HT_BW_40;
945 }
946 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_TXPWR_CFG,
947 HostCmd_ACT_GEN_SET, 0, buf);
948
949 kfree(buf);
950 return ret;
951}
952
953/*
954 * IOCTL request handler to get power save mode.
955 *
956 * This function prepares the correct firmware command and
957 * issues it.
958 */
959int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
960{
961 int ret;
962 struct mwifiex_adapter *adapter = priv->adapter;
963 u16 sub_cmd;
964
965 if (*ps_mode)
966 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
967 else
968 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
969 sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
970 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
971 sub_cmd, BITMAP_STA_PS, NULL);
972 if ((!ret) && (sub_cmd == DIS_AUTO_PS))
973 ret = mwifiex_send_cmd_async(priv,
974 HostCmd_CMD_802_11_PS_MODE_ENH, GET_PS,
975 0, NULL);
976
977 return ret;
978}
979
980/*
981 * IOCTL request handler to set/reset WPA IE.
982 *
983 * The supplied WPA IE is treated as a opaque buffer. Only the first field
984 * is checked to determine WPA version. If buffer length is zero, the existing
985 * WPA IE is reset.
986 */
987static int mwifiex_set_wpa_ie_helper(struct mwifiex_private *priv,
988 u8 *ie_data_ptr, u16 ie_len)
989{
990 if (ie_len) {
991 if (ie_len > sizeof(priv->wpa_ie)) {
992 dev_err(priv->adapter->dev,
993 "failed to copy WPA IE, too big\n");
994 return -1;
995 }
996 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
997 priv->wpa_ie_len = (u8) ie_len;
998 dev_dbg(priv->adapter->dev, "cmd: Set Wpa_ie_len=%d IE=%#x\n",
999 priv->wpa_ie_len, priv->wpa_ie[0]);
1000
1001 if (priv->wpa_ie[0] == WLAN_EID_WPA) {
1002 priv->sec_info.wpa_enabled = true;
1003 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
1004 priv->sec_info.wpa2_enabled = true;
1005 } else {
1006 priv->sec_info.wpa_enabled = false;
1007 priv->sec_info.wpa2_enabled = false;
1008 }
1009 } else {
1010 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
1011 priv->wpa_ie_len = 0;
1012 dev_dbg(priv->adapter->dev, "info: reset wpa_ie_len=%d IE=%#x\n",
1013 priv->wpa_ie_len, priv->wpa_ie[0]);
1014 priv->sec_info.wpa_enabled = false;
1015 priv->sec_info.wpa2_enabled = false;
1016 }
1017
1018 return 0;
1019}
1020
1021/*
1022 * IOCTL request handler to set/reset WAPI IE.
1023 *
1024 * The supplied WAPI IE is treated as a opaque buffer. Only the first field
1025 * is checked to internally enable WAPI. If buffer length is zero, the existing
1026 * WAPI IE is reset.
1027 */
1028static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
1029 u8 *ie_data_ptr, u16 ie_len)
1030{
1031 if (ie_len) {
1032 if (ie_len > sizeof(priv->wapi_ie)) {
1033 dev_dbg(priv->adapter->dev,
1034 "info: failed to copy WAPI IE, too big\n");
1035 return -1;
1036 }
1037 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
1038 priv->wapi_ie_len = ie_len;
1039 dev_dbg(priv->adapter->dev, "cmd: Set wapi_ie_len=%d IE=%#x\n",
1040 priv->wapi_ie_len, priv->wapi_ie[0]);
1041
1042 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
1043 priv->sec_info.wapi_enabled = true;
1044 } else {
1045 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
1046 priv->wapi_ie_len = ie_len;
1047 dev_dbg(priv->adapter->dev,
1048 "info: Reset wapi_ie_len=%d IE=%#x\n",
1049 priv->wapi_ie_len, priv->wapi_ie[0]);
1050 priv->sec_info.wapi_enabled = false;
1051 }
1052 return 0;
1053}
1054
1055/*
1056 * IOCTL request handler to set WAPI key.
1057 *
1058 * This function prepares the correct firmware command and
1059 * issues it.
1060 */
1061static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
1062 struct mwifiex_ds_encrypt_key *encrypt_key)
1063{
1064
1065 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1066 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
1067 encrypt_key);
1068}
1069
1070/*
1071 * IOCTL request handler to set WEP network key.
1072 *
1073 * This function prepares the correct firmware command and
1074 * issues it, after validation checks.
1075 */
1076static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
1077 struct mwifiex_ds_encrypt_key *encrypt_key)
1078{
1079 int ret;
1080 struct mwifiex_wep_key *wep_key;
1081 int index;
1082
1083 if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
1084 priv->wep_key_curr_index = 0;
1085 wep_key = &priv->wep_key[priv->wep_key_curr_index];
1086 index = encrypt_key->key_index;
1087 if (encrypt_key->key_disable) {
1088 priv->sec_info.wep_status = MWIFIEX_802_11_WEP_DISABLED;
1089 } else if (!encrypt_key->key_len) {
1090 /* Copy the required key as the current key */
1091 wep_key = &priv->wep_key[index];
1092 if (!wep_key->key_length) {
1093 dev_err(priv->adapter->dev,
1094 "key not set, so cannot enable it\n");
1095 return -1;
1096 }
1097 priv->wep_key_curr_index = (u16) index;
1098 priv->sec_info.wep_status = MWIFIEX_802_11_WEP_ENABLED;
1099 } else {
1100 wep_key = &priv->wep_key[index];
1101 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
1102 /* Copy the key in the driver */
1103 memcpy(wep_key->key_material,
1104 encrypt_key->key_material,
1105 encrypt_key->key_len);
1106 wep_key->key_index = index;
1107 wep_key->key_length = encrypt_key->key_len;
1108 priv->sec_info.wep_status = MWIFIEX_802_11_WEP_ENABLED;
1109 }
1110 if (wep_key->key_length) {
1111 /* Send request to firmware */
1112 ret = mwifiex_send_cmd_async(priv,
1113 HostCmd_CMD_802_11_KEY_MATERIAL,
1114 HostCmd_ACT_GEN_SET, 0, NULL);
1115 if (ret)
1116 return ret;
1117 }
1118 if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_ENABLED)
1119 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1120 else
1121 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1122
1123 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1124 HostCmd_ACT_GEN_SET, 0,
1125 &priv->curr_pkt_filter);
1126
1127 return ret;
1128}
1129
1130/*
1131 * IOCTL request handler to set WPA key.
1132 *
1133 * This function prepares the correct firmware command and
1134 * issues it, after validation checks.
1135 *
1136 * Current driver only supports key length of up to 32 bytes.
1137 *
1138 * This function can also be used to disable a currently set key.
1139 */
1140static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
1141 struct mwifiex_ds_encrypt_key *encrypt_key)
1142{
1143 int ret;
1144 u8 remove_key = false;
1145 struct host_cmd_ds_802_11_key_material *ibss_key;
1146
1147 /* Current driver only supports key length of up to 32 bytes */
1148 if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
1149 dev_err(priv->adapter->dev, "key length too long\n");
1150 return -1;
1151 }
1152
1153 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1154 /*
1155 * IBSS/WPA-None uses only one key (Group) for both receiving
1156 * and sending unicast and multicast packets.
1157 */
1158 /* Send the key as PTK to firmware */
1159 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1160 ret = mwifiex_send_cmd_async(priv,
1161 HostCmd_CMD_802_11_KEY_MATERIAL,
1162 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
1163 encrypt_key);
1164 if (ret)
1165 return ret;
1166
1167 ibss_key = &priv->aes_key;
1168 memset(ibss_key, 0,
1169 sizeof(struct host_cmd_ds_802_11_key_material));
1170 /* Copy the key in the driver */
1171 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
1172 encrypt_key->key_len);
1173 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
1174 sizeof(ibss_key->key_param_set.key_len));
1175 ibss_key->key_param_set.key_type_id
1176 = cpu_to_le16(KEY_TYPE_ID_TKIP);
1177 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
1178
1179 /* Send the key as GTK to firmware */
1180 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
1181 }
1182
1183 if (!encrypt_key->key_index)
1184 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1185
1186 if (remove_key)
1187 ret = mwifiex_send_cmd_sync(priv,
1188 HostCmd_CMD_802_11_KEY_MATERIAL,
1189 HostCmd_ACT_GEN_SET, !(KEY_INFO_ENABLED),
1190 encrypt_key);
1191 else
1192 ret = mwifiex_send_cmd_sync(priv,
1193 HostCmd_CMD_802_11_KEY_MATERIAL,
1194 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
1195 encrypt_key);
1196
1197 return ret;
1198}
1199
1200/*
1201 * IOCTL request handler to set/get network keys.
1202 *
1203 * This is a generic key handling function which supports WEP, WPA
1204 * and WAPI.
1205 */
1206static int
1207mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
1208 struct mwifiex_ds_encrypt_key *encrypt_key)
1209{
1210 int status;
1211
1212 if (encrypt_key->is_wapi_key)
1213 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
1214 else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
1215 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
1216 else
1217 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
1218 return status;
1219}
1220
1221/*
1222 * This function returns the driver version.
1223 */
1224int
1225mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
1226 int max_len)
1227{
1228 union {
1229 u32 l;
1230 u8 c[4];
1231 } ver;
1232 char fw_ver[32];
1233
1234 ver.l = adapter->fw_release_number;
1235 sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
1236
1237 snprintf(version, max_len, driver_version, fw_ver);
1238
1239 dev_dbg(adapter->dev, "info: MWIFIEX VERSION: %s\n", version);
1240
1241 return 0;
1242}
1243
1244/*
1245 * Sends IOCTL request to get signal information.
1246 *
1247 * This function allocates the IOCTL request buffer, fills it
1248 * with requisite parameters and calls the IOCTL handler.
1249 */
1250int mwifiex_get_signal_info(struct mwifiex_private *priv,
1251 struct mwifiex_ds_get_signal *signal)
1252{
1253 int status;
1254
1255 signal->selector = ALL_RSSI_INFO_MASK;
1256
1257 /* Signal info can be obtained only if connected */
1258 if (!priv->media_connected) {
1259 dev_dbg(priv->adapter->dev,
1260 "info: Can not get signal in disconnected state\n");
1261 return -1;
1262 }
1263
1264 status = mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
1265 HostCmd_ACT_GEN_GET, 0, signal);
1266
1267 if (!status) {
1268 if (signal->selector & BCN_RSSI_AVG_MASK)
1269 priv->w_stats.qual.level = signal->bcn_rssi_avg;
1270 if (signal->selector & BCN_NF_AVG_MASK)
1271 priv->w_stats.qual.noise = signal->bcn_nf_avg;
1272 }
1273
1274 return status;
1275}
1276
1277/*
1278 * Sends IOCTL request to set encoding parameters.
1279 *
1280 * This function allocates the IOCTL request buffer, fills it
1281 * with requisite parameters and calls the IOCTL handler.
1282 */
1283int mwifiex_set_encode(struct mwifiex_private *priv, const u8 *key,
1284 int key_len, u8 key_index, int disable)
1285{
1286 struct mwifiex_ds_encrypt_key encrypt_key;
1287
1288 memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
1289 encrypt_key.key_len = key_len;
1290 if (!disable) {
1291 encrypt_key.key_index = key_index;
1292 if (key_len)
1293 memcpy(encrypt_key.key_material, key, key_len);
1294 } else {
1295 encrypt_key.key_disable = true;
1296 }
1297
1298 return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1299}
1300
1301/*
1302 * Sends IOCTL request to get extended version.
1303 *
1304 * This function allocates the IOCTL request buffer, fills it
1305 * with requisite parameters and calls the IOCTL handler.
1306 */
1307int
1308mwifiex_get_ver_ext(struct mwifiex_private *priv)
1309{
1310 struct mwifiex_ver_ext ver_ext;
1311
1312 memset(&ver_ext, 0, sizeof(struct host_cmd_ds_version_ext));
1313 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_VERSION_EXT,
1314 HostCmd_ACT_GEN_GET, 0, &ver_ext))
1315 return -1;
1316
1317 return 0;
1318}
1319
1320/*
1321 * Sends IOCTL request to get statistics information.
1322 *
1323 * This function allocates the IOCTL request buffer, fills it
1324 * with requisite parameters and calls the IOCTL handler.
1325 */
1326int
1327mwifiex_get_stats_info(struct mwifiex_private *priv,
1328 struct mwifiex_ds_get_stats *log)
1329{
1330 int ret;
1331
1332 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_GET_LOG,
1333 HostCmd_ACT_GEN_GET, 0, log);
1334
1335 if (!ret) {
1336 priv->w_stats.discard.fragment = log->fcs_error;
1337 priv->w_stats.discard.retries = log->retry;
1338 priv->w_stats.discard.misc = log->ack_failure;
1339 }
1340
1341 return ret;
1342}
1343
1344/*
1345 * IOCTL request handler to read/write register.
1346 *
1347 * This function prepares the correct firmware command and
1348 * issues it.
1349 *
1350 * Access to the following registers are supported -
1351 * - MAC
1352 * - BBP
1353 * - RF
1354 * - PMIC
1355 * - CAU
1356 */
1357static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1358 struct mwifiex_ds_reg_rw *reg_rw,
1359 u16 action)
1360{
1361 u16 cmd_no;
1362
1363 switch (le32_to_cpu(reg_rw->type)) {
1364 case MWIFIEX_REG_MAC:
1365 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1366 break;
1367 case MWIFIEX_REG_BBP:
1368 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1369 break;
1370 case MWIFIEX_REG_RF:
1371 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1372 break;
1373 case MWIFIEX_REG_PMIC:
1374 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1375 break;
1376 case MWIFIEX_REG_CAU:
1377 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1378 break;
1379 default:
1380 return -1;
1381 }
1382
1383 return mwifiex_send_cmd_sync(priv, cmd_no, action, 0, reg_rw);
1384
1385}
1386
1387/*
1388 * Sends IOCTL request to write to a register.
1389 *
1390 * This function allocates the IOCTL request buffer, fills it
1391 * with requisite parameters and calls the IOCTL handler.
1392 */
1393int
1394mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1395 u32 reg_offset, u32 reg_value)
1396{
1397 struct mwifiex_ds_reg_rw reg_rw;
1398
1399 reg_rw.type = cpu_to_le32(reg_type);
1400 reg_rw.offset = cpu_to_le32(reg_offset);
1401 reg_rw.value = cpu_to_le32(reg_value);
1402
1403 return mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_SET);
1404}
1405
1406/*
1407 * Sends IOCTL request to read from a register.
1408 *
1409 * This function allocates the IOCTL request buffer, fills it
1410 * with requisite parameters and calls the IOCTL handler.
1411 */
1412int
1413mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1414 u32 reg_offset, u32 *value)
1415{
1416 int ret;
1417 struct mwifiex_ds_reg_rw reg_rw;
1418
1419 reg_rw.type = cpu_to_le32(reg_type);
1420 reg_rw.offset = cpu_to_le32(reg_offset);
1421 ret = mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_GET);
1422
1423 if (ret)
1424 goto done;
1425
1426 *value = le32_to_cpu(reg_rw.value);
1427
1428done:
1429 return ret;
1430}
1431
1432/*
1433 * Sends IOCTL request to read from EEPROM.
1434 *
1435 * This function allocates the IOCTL request buffer, fills it
1436 * with requisite parameters and calls the IOCTL handler.
1437 */
1438int
1439mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1440 u8 *value)
1441{
1442 int ret;
1443 struct mwifiex_ds_read_eeprom rd_eeprom;
1444
1445 rd_eeprom.offset = cpu_to_le16((u16) offset);
1446 rd_eeprom.byte_count = cpu_to_le16((u16) bytes);
1447
1448 /* Send request to firmware */
1449 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1450 HostCmd_ACT_GEN_GET, 0, &rd_eeprom);
1451
1452 if (!ret)
1453 memcpy(value, rd_eeprom.value, MAX_EEPROM_DATA);
1454 return ret;
1455}
1456
1457/*
1458 * This function sets a generic IE. In addition to generic IE, it can
1459 * also handle WPA, WPA2 and WAPI IEs.
1460 */
1461static int
1462mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1463 u16 ie_len)
1464{
1465 int ret = 0;
1466 struct ieee_types_vendor_header *pvendor_ie;
1467 const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1468 const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1469
1470 /* If the passed length is zero, reset the buffer */
1471 if (!ie_len) {
1472 priv->gen_ie_buf_len = 0;
1473 priv->wps.session_enable = false;
1474
1475 return 0;
1476 } else if (!ie_data_ptr) {
1477 return -1;
1478 }
1479 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1480 /* Test to see if it is a WPA IE, if not, then it is a gen IE */
1481 if (((pvendor_ie->element_id == WLAN_EID_WPA)
1482 && (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui))))
1483 || (pvendor_ie->element_id == WLAN_EID_RSN)) {
1484
1485 /* IE is a WPA/WPA2 IE so call set_wpa function */
1486 ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
1487 priv->wps.session_enable = false;
1488
1489 return ret;
1490 } else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1491 /* IE is a WAPI IE so call set_wapi function */
1492 ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);
1493
1494 return ret;
1495 }
1496 /*
1497 * Verify that the passed length is not larger than the
1498 * available space remaining in the buffer
1499 */
1500 if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1501
1502 /* Test to see if it is a WPS IE, if so, enable
1503 * wps session flag
1504 */
1505 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1506 if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC)
1507 && (!memcmp(pvendor_ie->oui, wps_oui,
1508 sizeof(wps_oui)))) {
1509 priv->wps.session_enable = true;
1510 dev_dbg(priv->adapter->dev,
1511 "info: WPS Session Enabled.\n");
1512 }
1513
1514 /* Append the passed data to the end of the
1515 genIeBuffer */
1516 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
1517 ie_len);
1518 /* Increment the stored buffer length by the
1519 size passed */
1520 priv->gen_ie_buf_len += ie_len;
1521 } else {
1522 /* Passed data does not fit in the remaining
1523 buffer space */
1524 ret = -1;
1525 }
1526
1527 /* Return 0, or -1 for error case */
1528 return ret;
1529}
1530
1531/*
1532 * IOCTL request handler to set/get generic IE.
1533 *
1534 * In addition to various generic IEs, this function can also be
1535 * used to set the ARP filter.
1536 */
1537static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1538 struct mwifiex_ds_misc_gen_ie *gen_ie,
1539 u16 action)
1540{
1541 struct mwifiex_adapter *adapter = priv->adapter;
1542
1543 switch (gen_ie->type) {
1544 case MWIFIEX_IE_TYPE_GEN_IE:
1545 if (action == HostCmd_ACT_GEN_GET) {
1546 gen_ie->len = priv->wpa_ie_len;
1547 memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1548 } else {
1549 mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1550 (u16) gen_ie->len);
1551 }
1552 break;
1553 case MWIFIEX_IE_TYPE_ARP_FILTER:
1554 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1555 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1556 adapter->arp_filter_size = 0;
1557 dev_err(adapter->dev, "invalid ARP filter size\n");
1558 return -1;
1559 } else {
1560 memcpy(adapter->arp_filter, gen_ie->ie_data,
1561 gen_ie->len);
1562 adapter->arp_filter_size = gen_ie->len;
1563 }
1564 break;
1565 default:
1566 dev_err(adapter->dev, "invalid IE type\n");
1567 return -1;
1568 }
1569 return 0;
1570}
1571
1572/*
1573 * Sends IOCTL request to set a generic IE.
1574 *
1575 * This function allocates the IOCTL request buffer, fills it
1576 * with requisite parameters and calls the IOCTL handler.
1577 */
1578int
1579mwifiex_set_gen_ie(struct mwifiex_private *priv, u8 *ie, int ie_len)
1580{
1581 struct mwifiex_ds_misc_gen_ie gen_ie;
1582
1583 if (ie_len > IW_CUSTOM_MAX)
1584 return -EFAULT;
1585
1586 gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1587 gen_ie.len = ie_len;
1588 memcpy(gen_ie.ie_data, ie, ie_len);
1589 if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1590 return -EFAULT;
1591
1592 return 0;
1593}