1 /*
2 * Marvell Wireless LAN device driver: functions for station ioctl
3 *
4 * Copyright (C) 2011-2014, 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 static int disconnect_on_suspend;
30 module_param(disconnect_on_suspend, int, 0644);
31
32 /*
33 * Copies the multicast address list from device to driver.
34 *
35 * This function does not validate the destination memory for
36 * size, and the calling function must ensure enough memory is
37 * available.
38 */
mwifiex_copy_mcast_addr(struct mwifiex_multicast_list * mlist,struct net_device * dev)39 int mwifiex_copy_mcast_addr(struct mwifiex_multicast_list *mlist,
40 struct net_device *dev)
41 {
42 int i = 0;
43 struct netdev_hw_addr *ha;
44
45 netdev_for_each_mc_addr(ha, dev)
46 memcpy(&mlist->mac_list[i++], ha->addr, ETH_ALEN);
47
48 return i;
49 }
50
51 /*
52 * Wait queue completion handler.
53 *
54 * This function waits on a cmd wait queue. It also cancels the pending
55 * request after waking up, in case of errors.
56 */
mwifiex_wait_queue_complete(struct mwifiex_adapter * adapter,struct cmd_ctrl_node * cmd_queued)57 int mwifiex_wait_queue_complete(struct mwifiex_adapter *adapter,
58 struct cmd_ctrl_node *cmd_queued)
59 {
60 int status;
61
62 /* Wait for completion */
63 status = wait_event_interruptible_timeout(adapter->cmd_wait_q.wait,
64 *(cmd_queued->condition),
65 (12 * HZ));
66 if (status <= 0) {
67 if (status == 0)
68 status = -ETIMEDOUT;
69 mwifiex_dbg(adapter, ERROR, "cmd_wait_q terminated: %d\n",
70 status);
71 mwifiex_cancel_all_pending_cmd(adapter);
72 return status;
73 }
74
75 status = adapter->cmd_wait_q.status;
76 adapter->cmd_wait_q.status = 0;
77
78 return status;
79 }
80
81 /*
82 * This function prepares the correct firmware command and
83 * issues it to set the multicast list.
84 *
85 * This function can be used to enable promiscuous mode, or enable all
86 * multicast packets, or to enable selective multicast.
87 */
mwifiex_request_set_multicast_list(struct mwifiex_private * priv,struct mwifiex_multicast_list * mcast_list)88 int mwifiex_request_set_multicast_list(struct mwifiex_private *priv,
89 struct mwifiex_multicast_list *mcast_list)
90 {
91 int ret = 0;
92 u16 old_pkt_filter;
93
94 old_pkt_filter = priv->curr_pkt_filter;
95
96 if (mcast_list->mode == MWIFIEX_PROMISC_MODE) {
97 mwifiex_dbg(priv->adapter, INFO,
98 "info: Enable Promiscuous mode\n");
99 priv->curr_pkt_filter |= HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
100 priv->curr_pkt_filter &=
101 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
102 } else {
103 /* Multicast */
104 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_PROMISCUOUS_ENABLE;
105 if (mcast_list->mode == MWIFIEX_ALL_MULTI_MODE) {
106 mwifiex_dbg(priv->adapter, INFO,
107 "info: Enabling All Multicast!\n");
108 priv->curr_pkt_filter |=
109 HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
110 } else {
111 priv->curr_pkt_filter &=
112 ~HostCmd_ACT_MAC_ALL_MULTICAST_ENABLE;
113 mwifiex_dbg(priv->adapter, INFO,
114 "info: Set multicast list=%d\n",
115 mcast_list->num_multicast_addr);
116 /* Send multicast addresses to firmware */
117 ret = mwifiex_send_cmd(priv,
118 HostCmd_CMD_MAC_MULTICAST_ADR,
119 HostCmd_ACT_GEN_SET, 0,
120 mcast_list, false);
121 }
122 }
123 mwifiex_dbg(priv->adapter, INFO,
124 "info: old_pkt_filter=%#x, curr_pkt_filter=%#x\n",
125 old_pkt_filter, priv->curr_pkt_filter);
126 if (old_pkt_filter != priv->curr_pkt_filter) {
127 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
128 HostCmd_ACT_GEN_SET,
129 0, &priv->curr_pkt_filter, false);
130 }
131
132 return ret;
133 }
134
135 /*
136 * This function fills bss descriptor structure using provided
137 * information.
138 * beacon_ie buffer is allocated in this function. It is caller's
139 * responsibility to free the memory.
140 */
mwifiex_fill_new_bss_desc(struct mwifiex_private * priv,struct cfg80211_bss * bss,struct mwifiex_bssdescriptor * bss_desc)141 int mwifiex_fill_new_bss_desc(struct mwifiex_private *priv,
142 struct cfg80211_bss *bss,
143 struct mwifiex_bssdescriptor *bss_desc)
144 {
145 u8 *beacon_ie;
146 size_t beacon_ie_len;
147 struct mwifiex_bss_priv *bss_priv = (void *)bss->priv;
148 const struct cfg80211_bss_ies *ies;
149
150 rcu_read_lock();
151 ies = rcu_dereference(bss->ies);
152 beacon_ie = kmemdup(ies->data, ies->len, GFP_ATOMIC);
153 beacon_ie_len = ies->len;
154 bss_desc->timestamp = ies->tsf;
155 rcu_read_unlock();
156
157 if (!beacon_ie) {
158 mwifiex_dbg(priv->adapter, ERROR,
159 " failed to alloc beacon_ie\n");
160 return -ENOMEM;
161 }
162
163 memcpy(bss_desc->mac_address, bss->bssid, ETH_ALEN);
164 bss_desc->rssi = bss->signal;
165 /* The caller of this function will free beacon_ie */
166 bss_desc->beacon_buf = beacon_ie;
167 bss_desc->beacon_buf_size = beacon_ie_len;
168 bss_desc->beacon_period = bss->beacon_interval;
169 bss_desc->cap_info_bitmap = bss->capability;
170 bss_desc->bss_band = bss_priv->band;
171 bss_desc->fw_tsf = bss_priv->fw_tsf;
172 if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_PRIVACY) {
173 mwifiex_dbg(priv->adapter, INFO,
174 "info: InterpretIE: AP WEP enabled\n");
175 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
176 } else {
177 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
178 }
179 if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_IBSS)
180 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
181 else
182 bss_desc->bss_mode = NL80211_IFTYPE_STATION;
183
184 /* Disable 11ac by default. Enable it only where there
185 * exist VHT_CAP IE in AP beacon
186 */
187 bss_desc->disable_11ac = true;
188
189 if (bss_desc->cap_info_bitmap & WLAN_CAPABILITY_SPECTRUM_MGMT)
190 bss_desc->sensed_11h = true;
191
192 return mwifiex_update_bss_desc_with_ie(priv->adapter, bss_desc);
193 }
194
mwifiex_dnld_txpwr_table(struct mwifiex_private * priv)195 void mwifiex_dnld_txpwr_table(struct mwifiex_private *priv)
196 {
197 if (priv->adapter->dt_node) {
198 char txpwr[] = {"marvell,00_txpwrlimit"};
199
200 memcpy(&txpwr[8], priv->adapter->country_code, 2);
201 mwifiex_dnld_dt_cfgdata(priv, priv->adapter->dt_node, txpwr);
202 }
203 }
204
mwifiex_process_country_ie(struct mwifiex_private * priv,struct cfg80211_bss * bss)205 static int mwifiex_process_country_ie(struct mwifiex_private *priv,
206 struct cfg80211_bss *bss)
207 {
208 const u8 *country_ie;
209 u8 country_ie_len;
210 struct mwifiex_802_11d_domain_reg *domain_info =
211 &priv->adapter->domain_reg;
212
213 rcu_read_lock();
214 country_ie = ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
215 if (!country_ie) {
216 rcu_read_unlock();
217 return 0;
218 }
219
220 country_ie_len = country_ie[1];
221 if (country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) {
222 rcu_read_unlock();
223 return 0;
224 }
225
226 if (!strncmp(priv->adapter->country_code, &country_ie[2], 2)) {
227 rcu_read_unlock();
228 mwifiex_dbg(priv->adapter, INFO,
229 "11D: skip setting domain info in FW\n");
230 return 0;
231 }
232 memcpy(priv->adapter->country_code, &country_ie[2], 2);
233
234 domain_info->country_code[0] = country_ie[2];
235 domain_info->country_code[1] = country_ie[3];
236 domain_info->country_code[2] = ' ';
237
238 country_ie_len -= IEEE80211_COUNTRY_STRING_LEN;
239
240 domain_info->no_of_triplet =
241 country_ie_len / sizeof(struct ieee80211_country_ie_triplet);
242
243 memcpy((u8 *)domain_info->triplet,
244 &country_ie[2] + IEEE80211_COUNTRY_STRING_LEN, country_ie_len);
245
246 rcu_read_unlock();
247
248 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
249 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
250 mwifiex_dbg(priv->adapter, ERROR,
251 "11D: setting domain info in FW fail\n");
252 return -1;
253 }
254
255 mwifiex_dnld_txpwr_table(priv);
256
257 return 0;
258 }
259
260 /*
261 * In Ad-Hoc mode, the IBSS is created if not found in scan list.
262 * In both Ad-Hoc and infra mode, an deauthentication is performed
263 * first.
264 */
mwifiex_bss_start(struct mwifiex_private * priv,struct cfg80211_bss * bss,struct cfg80211_ssid * req_ssid)265 int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
266 struct cfg80211_ssid *req_ssid)
267 {
268 int ret;
269 struct mwifiex_adapter *adapter = priv->adapter;
270 struct mwifiex_bssdescriptor *bss_desc = NULL;
271
272 priv->scan_block = false;
273
274 if (bss) {
275 if (adapter->region_code == 0x00)
276 mwifiex_process_country_ie(priv, bss);
277
278 /* Allocate and fill new bss descriptor */
279 bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor),
280 GFP_KERNEL);
281 if (!bss_desc)
282 return -ENOMEM;
283
284 ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc);
285 if (ret)
286 goto done;
287 }
288
289 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
290 priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) {
291 u8 config_bands;
292
293 if (!bss_desc)
294 return -1;
295
296 if (mwifiex_band_to_radio_type(bss_desc->bss_band) ==
297 HostCmd_SCAN_RADIO_TYPE_BG) {
298 config_bands = BAND_B | BAND_G | BAND_GN;
299 } else {
300 config_bands = BAND_A | BAND_AN;
301 if (adapter->fw_bands & BAND_AAC)
302 config_bands |= BAND_AAC;
303 }
304
305 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands))
306 adapter->config_bands = config_bands;
307
308 ret = mwifiex_check_network_compatibility(priv, bss_desc);
309 if (ret)
310 goto done;
311
312 if (mwifiex_11h_get_csa_closed_channel(priv) ==
313 (u8)bss_desc->channel) {
314 mwifiex_dbg(adapter, ERROR,
315 "Attempt to reconnect on csa closed chan(%d)\n",
316 bss_desc->channel);
317 ret = -1;
318 goto done;
319 }
320
321 mwifiex_dbg(adapter, INFO,
322 "info: SSID found in scan list ...\t"
323 "associating...\n");
324
325 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
326 if (netif_carrier_ok(priv->netdev))
327 netif_carrier_off(priv->netdev);
328
329 /* Clear any past association response stored for
330 * application retrieval */
331 priv->assoc_rsp_size = 0;
332 ret = mwifiex_associate(priv, bss_desc);
333
334 /* If auth type is auto and association fails using open mode,
335 * try to connect using shared mode */
336 if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG &&
337 priv->sec_info.is_authtype_auto &&
338 priv->sec_info.wep_enabled) {
339 priv->sec_info.authentication_mode =
340 NL80211_AUTHTYPE_SHARED_KEY;
341 ret = mwifiex_associate(priv, bss_desc);
342 }
343
344 if (bss)
345 cfg80211_put_bss(priv->adapter->wiphy, bss);
346 } else {
347 /* Adhoc mode */
348 /* If the requested SSID matches current SSID, return */
349 if (bss_desc && bss_desc->ssid.ssid_len &&
350 (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor.
351 ssid, &bss_desc->ssid))) {
352 ret = 0;
353 goto done;
354 }
355
356 priv->adhoc_is_link_sensed = false;
357
358 ret = mwifiex_check_network_compatibility(priv, bss_desc);
359
360 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
361 if (netif_carrier_ok(priv->netdev))
362 netif_carrier_off(priv->netdev);
363
364 if (!ret) {
365 mwifiex_dbg(adapter, INFO,
366 "info: network found in scan\t"
367 " list. Joining...\n");
368 ret = mwifiex_adhoc_join(priv, bss_desc);
369 if (bss)
370 cfg80211_put_bss(priv->adapter->wiphy, bss);
371 } else {
372 mwifiex_dbg(adapter, INFO,
373 "info: Network not found in\t"
374 "the list, creating adhoc with ssid = %s\n",
375 req_ssid->ssid);
376 ret = mwifiex_adhoc_start(priv, req_ssid);
377 }
378 }
379
380 done:
381 /* beacon_ie buffer was allocated in function
382 * mwifiex_fill_new_bss_desc(). Free it now.
383 */
384 if (bss_desc)
385 kfree(bss_desc->beacon_buf);
386 kfree(bss_desc);
387
388 if (ret < 0)
389 priv->attempted_bss_desc = NULL;
390
391 return ret;
392 }
393
394 /*
395 * IOCTL request handler to set host sleep configuration.
396 *
397 * This function prepares the correct firmware command and
398 * issues it.
399 */
mwifiex_set_hs_params(struct mwifiex_private * priv,u16 action,int cmd_type,struct mwifiex_ds_hs_cfg * hs_cfg)400 int mwifiex_set_hs_params(struct mwifiex_private *priv, u16 action,
401 int cmd_type, struct mwifiex_ds_hs_cfg *hs_cfg)
402
403 {
404 struct mwifiex_adapter *adapter = priv->adapter;
405 int status = 0;
406 u32 prev_cond = 0;
407
408 if (!hs_cfg)
409 return -ENOMEM;
410
411 switch (action) {
412 case HostCmd_ACT_GEN_SET:
413 if (adapter->pps_uapsd_mode) {
414 mwifiex_dbg(adapter, INFO,
415 "info: Host Sleep IOCTL\t"
416 "is blocked in UAPSD/PPS mode\n");
417 status = -1;
418 break;
419 }
420 if (hs_cfg->is_invoke_hostcmd) {
421 if (hs_cfg->conditions == HS_CFG_CANCEL) {
422 if (!test_bit(MWIFIEX_IS_HS_CONFIGURED,
423 &adapter->work_flags))
424 /* Already cancelled */
425 break;
426 /* Save previous condition */
427 prev_cond = le32_to_cpu(adapter->hs_cfg
428 .conditions);
429 adapter->hs_cfg.conditions =
430 cpu_to_le32(hs_cfg->conditions);
431 } else if (hs_cfg->conditions) {
432 adapter->hs_cfg.conditions =
433 cpu_to_le32(hs_cfg->conditions);
434 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
435 if (hs_cfg->gap)
436 adapter->hs_cfg.gap = (u8)hs_cfg->gap;
437 } else if (adapter->hs_cfg.conditions ==
438 cpu_to_le32(HS_CFG_CANCEL)) {
439 /* Return failure if no parameters for HS
440 enable */
441 status = -1;
442 break;
443 }
444
445 status = mwifiex_send_cmd(priv,
446 HostCmd_CMD_802_11_HS_CFG_ENH,
447 HostCmd_ACT_GEN_SET, 0,
448 &adapter->hs_cfg,
449 cmd_type == MWIFIEX_SYNC_CMD);
450
451 if (hs_cfg->conditions == HS_CFG_CANCEL)
452 /* Restore previous condition */
453 adapter->hs_cfg.conditions =
454 cpu_to_le32(prev_cond);
455 } else {
456 adapter->hs_cfg.conditions =
457 cpu_to_le32(hs_cfg->conditions);
458 adapter->hs_cfg.gpio = (u8)hs_cfg->gpio;
459 adapter->hs_cfg.gap = (u8)hs_cfg->gap;
460 }
461 break;
462 case HostCmd_ACT_GEN_GET:
463 hs_cfg->conditions = le32_to_cpu(adapter->hs_cfg.conditions);
464 hs_cfg->gpio = adapter->hs_cfg.gpio;
465 hs_cfg->gap = adapter->hs_cfg.gap;
466 break;
467 default:
468 status = -1;
469 break;
470 }
471
472 return status;
473 }
474
475 /*
476 * Sends IOCTL request to cancel the existing Host Sleep configuration.
477 *
478 * This function allocates the IOCTL request buffer, fills it
479 * with requisite parameters and calls the IOCTL handler.
480 */
mwifiex_cancel_hs(struct mwifiex_private * priv,int cmd_type)481 int mwifiex_cancel_hs(struct mwifiex_private *priv, int cmd_type)
482 {
483 struct mwifiex_ds_hs_cfg hscfg;
484
485 hscfg.conditions = HS_CFG_CANCEL;
486 hscfg.is_invoke_hostcmd = true;
487
488 return mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
489 cmd_type, &hscfg);
490 }
491 EXPORT_SYMBOL_GPL(mwifiex_cancel_hs);
492
493 /*
494 * Sends IOCTL request to cancel the existing Host Sleep configuration.
495 *
496 * This function allocates the IOCTL request buffer, fills it
497 * with requisite parameters and calls the IOCTL handler.
498 */
mwifiex_enable_hs(struct mwifiex_adapter * adapter)499 int mwifiex_enable_hs(struct mwifiex_adapter *adapter)
500 {
501 struct mwifiex_ds_hs_cfg hscfg;
502 struct mwifiex_private *priv;
503 int i;
504
505 if (disconnect_on_suspend) {
506 for (i = 0; i < adapter->priv_num; i++) {
507 priv = adapter->priv[i];
508 if (priv)
509 mwifiex_deauthenticate(priv, NULL);
510 }
511 }
512
513 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
514
515 if (priv && priv->sched_scanning) {
516 #ifdef CONFIG_PM
517 if (priv->wdev.wiphy->wowlan_config &&
518 !priv->wdev.wiphy->wowlan_config->nd_config) {
519 #endif
520 mwifiex_dbg(adapter, CMD, "aborting bgscan!\n");
521 mwifiex_stop_bg_scan(priv);
522 cfg80211_sched_scan_stopped(priv->wdev.wiphy, 0);
523 #ifdef CONFIG_PM
524 }
525 #endif
526 }
527
528 if (adapter->hs_activated) {
529 mwifiex_dbg(adapter, CMD,
530 "cmd: HS Already activated\n");
531 return true;
532 }
533
534 adapter->hs_activate_wait_q_woken = false;
535
536 memset(&hscfg, 0, sizeof(hscfg));
537 hscfg.is_invoke_hostcmd = true;
538
539 set_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags);
540 mwifiex_cancel_all_pending_cmd(adapter);
541
542 if (mwifiex_set_hs_params(mwifiex_get_priv(adapter,
543 MWIFIEX_BSS_ROLE_STA),
544 HostCmd_ACT_GEN_SET, MWIFIEX_SYNC_CMD,
545 &hscfg)) {
546 mwifiex_dbg(adapter, ERROR,
547 "IOCTL request HS enable failed\n");
548 return false;
549 }
550
551 if (wait_event_interruptible_timeout(adapter->hs_activate_wait_q,
552 adapter->hs_activate_wait_q_woken,
553 (10 * HZ)) <= 0) {
554 mwifiex_dbg(adapter, ERROR,
555 "hs_activate_wait_q terminated\n");
556 return false;
557 }
558
559 return true;
560 }
561 EXPORT_SYMBOL_GPL(mwifiex_enable_hs);
562
563 /*
564 * IOCTL request handler to get BSS information.
565 *
566 * This function collates the information from different driver structures
567 * to send to the user.
568 */
mwifiex_get_bss_info(struct mwifiex_private * priv,struct mwifiex_bss_info * info)569 int mwifiex_get_bss_info(struct mwifiex_private *priv,
570 struct mwifiex_bss_info *info)
571 {
572 struct mwifiex_adapter *adapter = priv->adapter;
573 struct mwifiex_bssdescriptor *bss_desc;
574
575 if (!info)
576 return -1;
577
578 bss_desc = &priv->curr_bss_params.bss_descriptor;
579
580 info->bss_mode = priv->bss_mode;
581
582 memcpy(&info->ssid, &bss_desc->ssid, sizeof(struct cfg80211_ssid));
583
584 memcpy(&info->bssid, &bss_desc->mac_address, ETH_ALEN);
585
586 info->bss_chan = bss_desc->channel;
587
588 memcpy(info->country_code, adapter->country_code,
589 IEEE80211_COUNTRY_STRING_LEN);
590
591 info->media_connected = priv->media_connected;
592
593 info->max_power_level = priv->max_tx_power_level;
594 info->min_power_level = priv->min_tx_power_level;
595
596 info->adhoc_state = priv->adhoc_state;
597
598 info->bcn_nf_last = priv->bcn_nf_last;
599
600 if (priv->sec_info.wep_enabled)
601 info->wep_status = true;
602 else
603 info->wep_status = false;
604
605 info->is_hs_configured = test_bit(MWIFIEX_IS_HS_CONFIGURED,
606 &adapter->work_flags);
607 info->is_deep_sleep = adapter->is_deep_sleep;
608
609 return 0;
610 }
611
612 /*
613 * The function disables auto deep sleep mode.
614 */
mwifiex_disable_auto_ds(struct mwifiex_private * priv)615 int mwifiex_disable_auto_ds(struct mwifiex_private *priv)
616 {
617 struct mwifiex_ds_auto_ds auto_ds = {
618 .auto_ds = DEEP_SLEEP_OFF,
619 };
620
621 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
622 DIS_AUTO_PS, BITMAP_AUTO_DS, &auto_ds, true);
623 }
624 EXPORT_SYMBOL_GPL(mwifiex_disable_auto_ds);
625
626 /*
627 * Sends IOCTL request to get the data rate.
628 *
629 * This function allocates the IOCTL request buffer, fills it
630 * with requisite parameters and calls the IOCTL handler.
631 */
mwifiex_drv_get_data_rate(struct mwifiex_private * priv,u32 * rate)632 int mwifiex_drv_get_data_rate(struct mwifiex_private *priv, u32 *rate)
633 {
634 int ret;
635
636 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_TX_RATE_QUERY,
637 HostCmd_ACT_GEN_GET, 0, NULL, true);
638
639 if (!ret) {
640 if (priv->is_data_rate_auto)
641 *rate = mwifiex_index_to_data_rate(priv, priv->tx_rate,
642 priv->tx_htinfo);
643 else
644 *rate = priv->data_rate;
645 }
646
647 return ret;
648 }
649
650 /*
651 * IOCTL request handler to set tx power configuration.
652 *
653 * This function prepares the correct firmware command and
654 * issues it.
655 *
656 * For non-auto power mode, all the following power groups are set -
657 * - Modulation class HR/DSSS
658 * - Modulation class OFDM
659 * - Modulation class HTBW20
660 * - Modulation class HTBW40
661 */
mwifiex_set_tx_power(struct mwifiex_private * priv,struct mwifiex_power_cfg * power_cfg)662 int mwifiex_set_tx_power(struct mwifiex_private *priv,
663 struct mwifiex_power_cfg *power_cfg)
664 {
665 int ret;
666 struct host_cmd_ds_txpwr_cfg *txp_cfg;
667 struct mwifiex_types_power_group *pg_tlv;
668 struct mwifiex_power_group *pg;
669 u8 *buf;
670 u16 dbm = 0;
671
672 if (!power_cfg->is_power_auto) {
673 dbm = (u16) power_cfg->power_level;
674 if ((dbm < priv->min_tx_power_level) ||
675 (dbm > priv->max_tx_power_level)) {
676 mwifiex_dbg(priv->adapter, ERROR,
677 "txpower value %d dBm\t"
678 "is out of range (%d dBm-%d dBm)\n",
679 dbm, priv->min_tx_power_level,
680 priv->max_tx_power_level);
681 return -1;
682 }
683 }
684 buf = kzalloc(MWIFIEX_SIZE_OF_CMD_BUFFER, GFP_KERNEL);
685 if (!buf)
686 return -ENOMEM;
687
688 txp_cfg = (struct host_cmd_ds_txpwr_cfg *) buf;
689 txp_cfg->action = cpu_to_le16(HostCmd_ACT_GEN_SET);
690 if (!power_cfg->is_power_auto) {
691 txp_cfg->mode = cpu_to_le32(1);
692 pg_tlv = (struct mwifiex_types_power_group *)
693 (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
694 pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP);
695 pg_tlv->length =
696 cpu_to_le16(4 * sizeof(struct mwifiex_power_group));
697 pg = (struct mwifiex_power_group *)
698 (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
699 + sizeof(struct mwifiex_types_power_group));
700 /* Power group for modulation class HR/DSSS */
701 pg->first_rate_code = 0x00;
702 pg->last_rate_code = 0x03;
703 pg->modulation_class = MOD_CLASS_HR_DSSS;
704 pg->power_step = 0;
705 pg->power_min = (s8) dbm;
706 pg->power_max = (s8) dbm;
707 pg++;
708 /* Power group for modulation class OFDM */
709 pg->first_rate_code = 0x00;
710 pg->last_rate_code = 0x07;
711 pg->modulation_class = MOD_CLASS_OFDM;
712 pg->power_step = 0;
713 pg->power_min = (s8) dbm;
714 pg->power_max = (s8) dbm;
715 pg++;
716 /* Power group for modulation class HTBW20 */
717 pg->first_rate_code = 0x00;
718 pg->last_rate_code = 0x20;
719 pg->modulation_class = MOD_CLASS_HT;
720 pg->power_step = 0;
721 pg->power_min = (s8) dbm;
722 pg->power_max = (s8) dbm;
723 pg->ht_bandwidth = HT_BW_20;
724 pg++;
725 /* Power group for modulation class HTBW40 */
726 pg->first_rate_code = 0x00;
727 pg->last_rate_code = 0x20;
728 pg->modulation_class = MOD_CLASS_HT;
729 pg->power_step = 0;
730 pg->power_min = (s8) dbm;
731 pg->power_max = (s8) dbm;
732 pg->ht_bandwidth = HT_BW_40;
733 }
734 ret = mwifiex_send_cmd(priv, HostCmd_CMD_TXPWR_CFG,
735 HostCmd_ACT_GEN_SET, 0, buf, true);
736
737 kfree(buf);
738 return ret;
739 }
740
741 /*
742 * IOCTL request handler to get power save mode.
743 *
744 * This function prepares the correct firmware command and
745 * issues it.
746 */
mwifiex_drv_set_power(struct mwifiex_private * priv,u32 * ps_mode)747 int mwifiex_drv_set_power(struct mwifiex_private *priv, u32 *ps_mode)
748 {
749 int ret;
750 struct mwifiex_adapter *adapter = priv->adapter;
751 u16 sub_cmd;
752
753 if (*ps_mode)
754 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
755 else
756 adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_CAM;
757 sub_cmd = (*ps_mode) ? EN_AUTO_PS : DIS_AUTO_PS;
758 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
759 sub_cmd, BITMAP_STA_PS, NULL, true);
760 if ((!ret) && (sub_cmd == DIS_AUTO_PS))
761 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
762 GET_PS, 0, NULL, false);
763
764 return ret;
765 }
766
767 /*
768 * IOCTL request handler to set/reset WPA IE.
769 *
770 * The supplied WPA IE is treated as a opaque buffer. Only the first field
771 * is checked to determine WPA version. If buffer length is zero, the existing
772 * WPA IE is reset.
773 */
mwifiex_set_wpa_ie(struct mwifiex_private * priv,u8 * ie_data_ptr,u16 ie_len)774 static int mwifiex_set_wpa_ie(struct mwifiex_private *priv,
775 u8 *ie_data_ptr, u16 ie_len)
776 {
777 if (ie_len) {
778 if (ie_len > sizeof(priv->wpa_ie)) {
779 mwifiex_dbg(priv->adapter, ERROR,
780 "failed to copy WPA IE, too big\n");
781 return -1;
782 }
783 memcpy(priv->wpa_ie, ie_data_ptr, ie_len);
784 priv->wpa_ie_len = ie_len;
785 mwifiex_dbg(priv->adapter, CMD,
786 "cmd: Set Wpa_ie_len=%d IE=%#x\n",
787 priv->wpa_ie_len, priv->wpa_ie[0]);
788
789 if (priv->wpa_ie[0] == WLAN_EID_VENDOR_SPECIFIC) {
790 priv->sec_info.wpa_enabled = true;
791 } else if (priv->wpa_ie[0] == WLAN_EID_RSN) {
792 priv->sec_info.wpa2_enabled = true;
793 } else {
794 priv->sec_info.wpa_enabled = false;
795 priv->sec_info.wpa2_enabled = false;
796 }
797 } else {
798 memset(priv->wpa_ie, 0, sizeof(priv->wpa_ie));
799 priv->wpa_ie_len = 0;
800 mwifiex_dbg(priv->adapter, INFO,
801 "info: reset wpa_ie_len=%d IE=%#x\n",
802 priv->wpa_ie_len, priv->wpa_ie[0]);
803 priv->sec_info.wpa_enabled = false;
804 priv->sec_info.wpa2_enabled = false;
805 }
806
807 return 0;
808 }
809
810 /*
811 * IOCTL request handler to set/reset WAPI IE.
812 *
813 * The supplied WAPI IE is treated as a opaque buffer. Only the first field
814 * is checked to internally enable WAPI. If buffer length is zero, the existing
815 * WAPI IE is reset.
816 */
mwifiex_set_wapi_ie(struct mwifiex_private * priv,u8 * ie_data_ptr,u16 ie_len)817 static int mwifiex_set_wapi_ie(struct mwifiex_private *priv,
818 u8 *ie_data_ptr, u16 ie_len)
819 {
820 if (ie_len) {
821 if (ie_len > sizeof(priv->wapi_ie)) {
822 mwifiex_dbg(priv->adapter, ERROR,
823 "info: failed to copy WAPI IE, too big\n");
824 return -1;
825 }
826 memcpy(priv->wapi_ie, ie_data_ptr, ie_len);
827 priv->wapi_ie_len = ie_len;
828 mwifiex_dbg(priv->adapter, CMD,
829 "cmd: Set wapi_ie_len=%d IE=%#x\n",
830 priv->wapi_ie_len, priv->wapi_ie[0]);
831
832 if (priv->wapi_ie[0] == WLAN_EID_BSS_AC_ACCESS_DELAY)
833 priv->sec_info.wapi_enabled = true;
834 } else {
835 memset(priv->wapi_ie, 0, sizeof(priv->wapi_ie));
836 priv->wapi_ie_len = ie_len;
837 mwifiex_dbg(priv->adapter, INFO,
838 "info: Reset wapi_ie_len=%d IE=%#x\n",
839 priv->wapi_ie_len, priv->wapi_ie[0]);
840 priv->sec_info.wapi_enabled = false;
841 }
842 return 0;
843 }
844
845 /*
846 * IOCTL request handler to set/reset WPS IE.
847 *
848 * The supplied WPS IE is treated as a opaque buffer. Only the first field
849 * is checked to internally enable WPS. If buffer length is zero, the existing
850 * WPS IE is reset.
851 */
mwifiex_set_wps_ie(struct mwifiex_private * priv,u8 * ie_data_ptr,u16 ie_len)852 static int mwifiex_set_wps_ie(struct mwifiex_private *priv,
853 u8 *ie_data_ptr, u16 ie_len)
854 {
855 if (ie_len) {
856 if (ie_len > MWIFIEX_MAX_VSIE_LEN) {
857 mwifiex_dbg(priv->adapter, ERROR,
858 "info: failed to copy WPS IE, too big\n");
859 return -1;
860 }
861
862 priv->wps_ie = kzalloc(MWIFIEX_MAX_VSIE_LEN, GFP_KERNEL);
863 if (!priv->wps_ie)
864 return -ENOMEM;
865
866 memcpy(priv->wps_ie, ie_data_ptr, ie_len);
867 priv->wps_ie_len = ie_len;
868 mwifiex_dbg(priv->adapter, CMD,
869 "cmd: Set wps_ie_len=%d IE=%#x\n",
870 priv->wps_ie_len, priv->wps_ie[0]);
871 } else {
872 kfree(priv->wps_ie);
873 priv->wps_ie_len = ie_len;
874 mwifiex_dbg(priv->adapter, INFO,
875 "info: Reset wps_ie_len=%d\n", priv->wps_ie_len);
876 }
877 return 0;
878 }
879
880 /*
881 * IOCTL request handler to set WAPI key.
882 *
883 * This function prepares the correct firmware command and
884 * issues it.
885 */
mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private * priv,struct mwifiex_ds_encrypt_key * encrypt_key)886 static int mwifiex_sec_ioctl_set_wapi_key(struct mwifiex_private *priv,
887 struct mwifiex_ds_encrypt_key *encrypt_key)
888 {
889
890 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
891 HostCmd_ACT_GEN_SET, KEY_INFO_ENABLED,
892 encrypt_key, true);
893 }
894
895 /*
896 * IOCTL request handler to set WEP network key.
897 *
898 * This function prepares the correct firmware command and
899 * issues it, after validation checks.
900 */
mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private * priv,struct mwifiex_ds_encrypt_key * encrypt_key)901 static int mwifiex_sec_ioctl_set_wep_key(struct mwifiex_private *priv,
902 struct mwifiex_ds_encrypt_key *encrypt_key)
903 {
904 struct mwifiex_adapter *adapter = priv->adapter;
905 int ret;
906 struct mwifiex_wep_key *wep_key;
907 int index;
908
909 if (priv->wep_key_curr_index >= NUM_WEP_KEYS)
910 priv->wep_key_curr_index = 0;
911 wep_key = &priv->wep_key[priv->wep_key_curr_index];
912 index = encrypt_key->key_index;
913 if (encrypt_key->key_disable) {
914 priv->sec_info.wep_enabled = 0;
915 } else if (!encrypt_key->key_len) {
916 /* Copy the required key as the current key */
917 wep_key = &priv->wep_key[index];
918 if (!wep_key->key_length) {
919 mwifiex_dbg(adapter, ERROR,
920 "key not set, so cannot enable it\n");
921 return -1;
922 }
923
924 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2) {
925 memcpy(encrypt_key->key_material,
926 wep_key->key_material, wep_key->key_length);
927 encrypt_key->key_len = wep_key->key_length;
928 }
929
930 priv->wep_key_curr_index = (u16) index;
931 priv->sec_info.wep_enabled = 1;
932 } else {
933 wep_key = &priv->wep_key[index];
934 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
935 /* Copy the key in the driver */
936 memcpy(wep_key->key_material,
937 encrypt_key->key_material,
938 encrypt_key->key_len);
939 wep_key->key_index = index;
940 wep_key->key_length = encrypt_key->key_len;
941 priv->sec_info.wep_enabled = 1;
942 }
943 if (wep_key->key_length) {
944 void *enc_key;
945
946 if (encrypt_key->key_disable) {
947 memset(&priv->wep_key[index], 0,
948 sizeof(struct mwifiex_wep_key));
949 goto done;
950 }
951
952 if (adapter->key_api_major_ver == KEY_API_VER_MAJOR_V2)
953 enc_key = encrypt_key;
954 else
955 enc_key = NULL;
956
957 /* Send request to firmware */
958 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
959 HostCmd_ACT_GEN_SET, 0, enc_key, false);
960 if (ret)
961 return ret;
962 }
963
964 done:
965 if (priv->sec_info.wep_enabled)
966 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
967 else
968 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
969
970 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
971 HostCmd_ACT_GEN_SET, 0,
972 &priv->curr_pkt_filter, true);
973
974 return ret;
975 }
976
977 /*
978 * IOCTL request handler to set WPA key.
979 *
980 * This function prepares the correct firmware command and
981 * issues it, after validation checks.
982 *
983 * Current driver only supports key length of up to 32 bytes.
984 *
985 * This function can also be used to disable a currently set key.
986 */
mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private * priv,struct mwifiex_ds_encrypt_key * encrypt_key)987 static int mwifiex_sec_ioctl_set_wpa_key(struct mwifiex_private *priv,
988 struct mwifiex_ds_encrypt_key *encrypt_key)
989 {
990 int ret;
991 u8 remove_key = false;
992 struct host_cmd_ds_802_11_key_material *ibss_key;
993
994 /* Current driver only supports key length of up to 32 bytes */
995 if (encrypt_key->key_len > WLAN_MAX_KEY_LEN) {
996 mwifiex_dbg(priv->adapter, ERROR,
997 "key length too long\n");
998 return -1;
999 }
1000
1001 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1002 /*
1003 * IBSS/WPA-None uses only one key (Group) for both receiving
1004 * and sending unicast and multicast packets.
1005 */
1006 /* Send the key as PTK to firmware */
1007 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1008 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1009 HostCmd_ACT_GEN_SET,
1010 KEY_INFO_ENABLED, encrypt_key, false);
1011 if (ret)
1012 return ret;
1013
1014 ibss_key = &priv->aes_key;
1015 memset(ibss_key, 0,
1016 sizeof(struct host_cmd_ds_802_11_key_material));
1017 /* Copy the key in the driver */
1018 memcpy(ibss_key->key_param_set.key, encrypt_key->key_material,
1019 encrypt_key->key_len);
1020 memcpy(&ibss_key->key_param_set.key_len, &encrypt_key->key_len,
1021 sizeof(ibss_key->key_param_set.key_len));
1022 ibss_key->key_param_set.key_type_id
1023 = cpu_to_le16(KEY_TYPE_ID_TKIP);
1024 ibss_key->key_param_set.key_info = cpu_to_le16(KEY_ENABLED);
1025
1026 /* Send the key as GTK to firmware */
1027 encrypt_key->key_index = ~MWIFIEX_KEY_INDEX_UNICAST;
1028 }
1029
1030 if (!encrypt_key->key_index)
1031 encrypt_key->key_index = MWIFIEX_KEY_INDEX_UNICAST;
1032
1033 if (remove_key)
1034 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1035 HostCmd_ACT_GEN_SET,
1036 !KEY_INFO_ENABLED, encrypt_key, true);
1037 else
1038 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
1039 HostCmd_ACT_GEN_SET,
1040 KEY_INFO_ENABLED, encrypt_key, true);
1041
1042 return ret;
1043 }
1044
1045 /*
1046 * IOCTL request handler to set/get network keys.
1047 *
1048 * This is a generic key handling function which supports WEP, WPA
1049 * and WAPI.
1050 */
1051 static int
mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private * priv,struct mwifiex_ds_encrypt_key * encrypt_key)1052 mwifiex_sec_ioctl_encrypt_key(struct mwifiex_private *priv,
1053 struct mwifiex_ds_encrypt_key *encrypt_key)
1054 {
1055 int status;
1056
1057 if (encrypt_key->is_wapi_key)
1058 status = mwifiex_sec_ioctl_set_wapi_key(priv, encrypt_key);
1059 else if (encrypt_key->key_len > WLAN_KEY_LEN_WEP104)
1060 status = mwifiex_sec_ioctl_set_wpa_key(priv, encrypt_key);
1061 else
1062 status = mwifiex_sec_ioctl_set_wep_key(priv, encrypt_key);
1063 return status;
1064 }
1065
1066 /*
1067 * This function returns the driver version.
1068 */
1069 int
mwifiex_drv_get_driver_version(struct mwifiex_adapter * adapter,char * version,int max_len)1070 mwifiex_drv_get_driver_version(struct mwifiex_adapter *adapter, char *version,
1071 int max_len)
1072 {
1073 union {
1074 __le32 l;
1075 u8 c[4];
1076 } ver;
1077 char fw_ver[32];
1078
1079 ver.l = cpu_to_le32(adapter->fw_release_number);
1080 sprintf(fw_ver, "%u.%u.%u.p%u", ver.c[2], ver.c[1], ver.c[0], ver.c[3]);
1081
1082 snprintf(version, max_len, driver_version, fw_ver);
1083
1084 mwifiex_dbg(adapter, MSG, "info: MWIFIEX VERSION: %s\n", version);
1085
1086 return 0;
1087 }
1088
1089 /*
1090 * Sends IOCTL request to set encoding parameters.
1091 *
1092 * This function allocates the IOCTL request buffer, fills it
1093 * with requisite parameters and calls the IOCTL handler.
1094 */
mwifiex_set_encode(struct mwifiex_private * priv,struct key_params * kp,const u8 * key,int key_len,u8 key_index,const u8 * mac_addr,int disable)1095 int mwifiex_set_encode(struct mwifiex_private *priv, struct key_params *kp,
1096 const u8 *key, int key_len, u8 key_index,
1097 const u8 *mac_addr, int disable)
1098 {
1099 struct mwifiex_ds_encrypt_key encrypt_key;
1100
1101 memset(&encrypt_key, 0, sizeof(encrypt_key));
1102 encrypt_key.key_len = key_len;
1103 encrypt_key.key_index = key_index;
1104
1105 if (kp && kp->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
1106 encrypt_key.is_igtk_key = true;
1107
1108 if (!disable) {
1109 if (key_len)
1110 memcpy(encrypt_key.key_material, key, key_len);
1111 else
1112 encrypt_key.is_current_wep_key = true;
1113
1114 if (mac_addr)
1115 memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1116 if (kp && kp->seq && kp->seq_len) {
1117 memcpy(encrypt_key.pn, kp->seq, kp->seq_len);
1118 encrypt_key.pn_len = kp->seq_len;
1119 encrypt_key.is_rx_seq_valid = true;
1120 }
1121 } else {
1122 encrypt_key.key_disable = true;
1123 if (mac_addr)
1124 memcpy(encrypt_key.mac_addr, mac_addr, ETH_ALEN);
1125 }
1126
1127 return mwifiex_sec_ioctl_encrypt_key(priv, &encrypt_key);
1128 }
1129
1130 /*
1131 * Sends IOCTL request to get extended version.
1132 *
1133 * This function allocates the IOCTL request buffer, fills it
1134 * with requisite parameters and calls the IOCTL handler.
1135 */
1136 int
mwifiex_get_ver_ext(struct mwifiex_private * priv,u32 version_str_sel)1137 mwifiex_get_ver_ext(struct mwifiex_private *priv, u32 version_str_sel)
1138 {
1139 struct mwifiex_ver_ext ver_ext;
1140
1141 memset(&ver_ext, 0, sizeof(ver_ext));
1142 ver_ext.version_str_sel = version_str_sel;
1143 if (mwifiex_send_cmd(priv, HostCmd_CMD_VERSION_EXT,
1144 HostCmd_ACT_GEN_GET, 0, &ver_ext, true))
1145 return -1;
1146
1147 return 0;
1148 }
1149
1150 int
mwifiex_remain_on_chan_cfg(struct mwifiex_private * priv,u16 action,struct ieee80211_channel * chan,unsigned int duration)1151 mwifiex_remain_on_chan_cfg(struct mwifiex_private *priv, u16 action,
1152 struct ieee80211_channel *chan,
1153 unsigned int duration)
1154 {
1155 struct host_cmd_ds_remain_on_chan roc_cfg;
1156 u8 sc;
1157
1158 memset(&roc_cfg, 0, sizeof(roc_cfg));
1159 roc_cfg.action = cpu_to_le16(action);
1160 if (action == HostCmd_ACT_GEN_SET) {
1161 roc_cfg.band_cfg = chan->band;
1162 sc = mwifiex_chan_type_to_sec_chan_offset(NL80211_CHAN_NO_HT);
1163 roc_cfg.band_cfg |= (sc << 2);
1164
1165 roc_cfg.channel =
1166 ieee80211_frequency_to_channel(chan->center_freq);
1167 roc_cfg.duration = cpu_to_le32(duration);
1168 }
1169 if (mwifiex_send_cmd(priv, HostCmd_CMD_REMAIN_ON_CHAN,
1170 action, 0, &roc_cfg, true)) {
1171 mwifiex_dbg(priv->adapter, ERROR,
1172 "failed to remain on channel\n");
1173 return -1;
1174 }
1175
1176 return roc_cfg.status;
1177 }
1178
1179 /*
1180 * Sends IOCTL request to get statistics information.
1181 *
1182 * This function allocates the IOCTL request buffer, fills it
1183 * with requisite parameters and calls the IOCTL handler.
1184 */
1185 int
mwifiex_get_stats_info(struct mwifiex_private * priv,struct mwifiex_ds_get_stats * log)1186 mwifiex_get_stats_info(struct mwifiex_private *priv,
1187 struct mwifiex_ds_get_stats *log)
1188 {
1189 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_GET_LOG,
1190 HostCmd_ACT_GEN_GET, 0, log, true);
1191 }
1192
1193 /*
1194 * IOCTL request handler to read/write register.
1195 *
1196 * This function prepares the correct firmware command and
1197 * issues it.
1198 *
1199 * Access to the following registers are supported -
1200 * - MAC
1201 * - BBP
1202 * - RF
1203 * - PMIC
1204 * - CAU
1205 */
mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private * priv,struct mwifiex_ds_reg_rw * reg_rw,u16 action)1206 static int mwifiex_reg_mem_ioctl_reg_rw(struct mwifiex_private *priv,
1207 struct mwifiex_ds_reg_rw *reg_rw,
1208 u16 action)
1209 {
1210 u16 cmd_no;
1211
1212 switch (reg_rw->type) {
1213 case MWIFIEX_REG_MAC:
1214 cmd_no = HostCmd_CMD_MAC_REG_ACCESS;
1215 break;
1216 case MWIFIEX_REG_BBP:
1217 cmd_no = HostCmd_CMD_BBP_REG_ACCESS;
1218 break;
1219 case MWIFIEX_REG_RF:
1220 cmd_no = HostCmd_CMD_RF_REG_ACCESS;
1221 break;
1222 case MWIFIEX_REG_PMIC:
1223 cmd_no = HostCmd_CMD_PMIC_REG_ACCESS;
1224 break;
1225 case MWIFIEX_REG_CAU:
1226 cmd_no = HostCmd_CMD_CAU_REG_ACCESS;
1227 break;
1228 default:
1229 return -1;
1230 }
1231
1232 return mwifiex_send_cmd(priv, cmd_no, action, 0, reg_rw, true);
1233 }
1234
1235 /*
1236 * Sends IOCTL request to write to a register.
1237 *
1238 * This function allocates the IOCTL request buffer, fills it
1239 * with requisite parameters and calls the IOCTL handler.
1240 */
1241 int
mwifiex_reg_write(struct mwifiex_private * priv,u32 reg_type,u32 reg_offset,u32 reg_value)1242 mwifiex_reg_write(struct mwifiex_private *priv, u32 reg_type,
1243 u32 reg_offset, u32 reg_value)
1244 {
1245 struct mwifiex_ds_reg_rw reg_rw;
1246
1247 reg_rw.type = reg_type;
1248 reg_rw.offset = reg_offset;
1249 reg_rw.value = reg_value;
1250
1251 return mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_SET);
1252 }
1253
1254 /*
1255 * Sends IOCTL request to read from a register.
1256 *
1257 * This function allocates the IOCTL request buffer, fills it
1258 * with requisite parameters and calls the IOCTL handler.
1259 */
1260 int
mwifiex_reg_read(struct mwifiex_private * priv,u32 reg_type,u32 reg_offset,u32 * value)1261 mwifiex_reg_read(struct mwifiex_private *priv, u32 reg_type,
1262 u32 reg_offset, u32 *value)
1263 {
1264 int ret;
1265 struct mwifiex_ds_reg_rw reg_rw;
1266
1267 reg_rw.type = reg_type;
1268 reg_rw.offset = reg_offset;
1269 ret = mwifiex_reg_mem_ioctl_reg_rw(priv, ®_rw, HostCmd_ACT_GEN_GET);
1270
1271 if (ret)
1272 goto done;
1273
1274 *value = reg_rw.value;
1275
1276 done:
1277 return ret;
1278 }
1279
1280 /*
1281 * Sends IOCTL request to read from EEPROM.
1282 *
1283 * This function allocates the IOCTL request buffer, fills it
1284 * with requisite parameters and calls the IOCTL handler.
1285 */
1286 int
mwifiex_eeprom_read(struct mwifiex_private * priv,u16 offset,u16 bytes,u8 * value)1287 mwifiex_eeprom_read(struct mwifiex_private *priv, u16 offset, u16 bytes,
1288 u8 *value)
1289 {
1290 int ret;
1291 struct mwifiex_ds_read_eeprom rd_eeprom;
1292
1293 rd_eeprom.offset = offset;
1294 rd_eeprom.byte_count = bytes;
1295
1296 /* Send request to firmware */
1297 ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_EEPROM_ACCESS,
1298 HostCmd_ACT_GEN_GET, 0, &rd_eeprom, true);
1299
1300 if (!ret)
1301 memcpy(value, rd_eeprom.value, min((u16)MAX_EEPROM_DATA,
1302 rd_eeprom.byte_count));
1303 return ret;
1304 }
1305
1306 /*
1307 * This function sets a generic IE. In addition to generic IE, it can
1308 * also handle WPA, WPA2 and WAPI IEs.
1309 */
1310 static int
mwifiex_set_gen_ie_helper(struct mwifiex_private * priv,u8 * ie_data_ptr,u16 ie_len)1311 mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
1312 u16 ie_len)
1313 {
1314 struct ieee_types_vendor_header *pvendor_ie;
1315 const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
1316 const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
1317 u16 unparsed_len = ie_len, cur_ie_len;
1318
1319 /* If the passed length is zero, reset the buffer */
1320 if (!ie_len) {
1321 priv->gen_ie_buf_len = 0;
1322 priv->wps.session_enable = false;
1323 return 0;
1324 } else if (!ie_data_ptr ||
1325 ie_len <= sizeof(struct ieee_types_header)) {
1326 return -1;
1327 }
1328 pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
1329
1330 while (pvendor_ie) {
1331 cur_ie_len = pvendor_ie->len + sizeof(struct ieee_types_header);
1332
1333 if (pvendor_ie->element_id == WLAN_EID_RSN) {
1334 /* IE is a WPA/WPA2 IE so call set_wpa function */
1335 mwifiex_set_wpa_ie(priv, (u8 *)pvendor_ie, cur_ie_len);
1336 priv->wps.session_enable = false;
1337 goto next_ie;
1338 }
1339
1340 if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
1341 /* IE is a WAPI IE so call set_wapi function */
1342 mwifiex_set_wapi_ie(priv, (u8 *)pvendor_ie,
1343 cur_ie_len);
1344 goto next_ie;
1345 }
1346
1347 if (pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) {
1348 /* Test to see if it is a WPA IE, if not, then
1349 * it is a gen IE
1350 */
1351 if (!memcmp(pvendor_ie->oui, wpa_oui,
1352 sizeof(wpa_oui))) {
1353 /* IE is a WPA/WPA2 IE so call set_wpa function
1354 */
1355 mwifiex_set_wpa_ie(priv, (u8 *)pvendor_ie,
1356 cur_ie_len);
1357 priv->wps.session_enable = false;
1358 goto next_ie;
1359 }
1360
1361 if (!memcmp(pvendor_ie->oui, wps_oui,
1362 sizeof(wps_oui))) {
1363 /* Test to see if it is a WPS IE,
1364 * if so, enable wps session flag
1365 */
1366 priv->wps.session_enable = true;
1367 mwifiex_dbg(priv->adapter, MSG,
1368 "WPS Session Enabled.\n");
1369 mwifiex_set_wps_ie(priv, (u8 *)pvendor_ie,
1370 cur_ie_len);
1371 goto next_ie;
1372 }
1373 }
1374
1375 /* Saved in gen_ie, such as P2P IE.etc.*/
1376
1377 /* Verify that the passed length is not larger than the
1378 * available space remaining in the buffer
1379 */
1380 if (cur_ie_len <
1381 (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
1382 /* Append the passed data to the end
1383 * of the genIeBuffer
1384 */
1385 memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len,
1386 (u8 *)pvendor_ie, cur_ie_len);
1387 /* Increment the stored buffer length by the
1388 * size passed
1389 */
1390 priv->gen_ie_buf_len += cur_ie_len;
1391 }
1392
1393 next_ie:
1394 unparsed_len -= cur_ie_len;
1395
1396 if (unparsed_len <= sizeof(struct ieee_types_header))
1397 pvendor_ie = NULL;
1398 else
1399 pvendor_ie = (struct ieee_types_vendor_header *)
1400 (((u8 *)pvendor_ie) + cur_ie_len);
1401 }
1402
1403 return 0;
1404 }
1405
1406 /*
1407 * IOCTL request handler to set/get generic IE.
1408 *
1409 * In addition to various generic IEs, this function can also be
1410 * used to set the ARP filter.
1411 */
mwifiex_misc_ioctl_gen_ie(struct mwifiex_private * priv,struct mwifiex_ds_misc_gen_ie * gen_ie,u16 action)1412 static int mwifiex_misc_ioctl_gen_ie(struct mwifiex_private *priv,
1413 struct mwifiex_ds_misc_gen_ie *gen_ie,
1414 u16 action)
1415 {
1416 struct mwifiex_adapter *adapter = priv->adapter;
1417
1418 switch (gen_ie->type) {
1419 case MWIFIEX_IE_TYPE_GEN_IE:
1420 if (action == HostCmd_ACT_GEN_GET) {
1421 gen_ie->len = priv->wpa_ie_len;
1422 memcpy(gen_ie->ie_data, priv->wpa_ie, gen_ie->len);
1423 } else {
1424 mwifiex_set_gen_ie_helper(priv, gen_ie->ie_data,
1425 (u16) gen_ie->len);
1426 }
1427 break;
1428 case MWIFIEX_IE_TYPE_ARP_FILTER:
1429 memset(adapter->arp_filter, 0, sizeof(adapter->arp_filter));
1430 if (gen_ie->len > ARP_FILTER_MAX_BUF_SIZE) {
1431 adapter->arp_filter_size = 0;
1432 mwifiex_dbg(adapter, ERROR,
1433 "invalid ARP filter size\n");
1434 return -1;
1435 } else {
1436 memcpy(adapter->arp_filter, gen_ie->ie_data,
1437 gen_ie->len);
1438 adapter->arp_filter_size = gen_ie->len;
1439 }
1440 break;
1441 default:
1442 mwifiex_dbg(adapter, ERROR, "invalid IE type\n");
1443 return -1;
1444 }
1445 return 0;
1446 }
1447
1448 /*
1449 * Sends IOCTL request to set a generic IE.
1450 *
1451 * This function allocates the IOCTL request buffer, fills it
1452 * with requisite parameters and calls the IOCTL handler.
1453 */
1454 int
mwifiex_set_gen_ie(struct mwifiex_private * priv,const u8 * ie,int ie_len)1455 mwifiex_set_gen_ie(struct mwifiex_private *priv, const u8 *ie, int ie_len)
1456 {
1457 struct mwifiex_ds_misc_gen_ie gen_ie;
1458
1459 if (ie_len > IEEE_MAX_IE_SIZE)
1460 return -EFAULT;
1461
1462 gen_ie.type = MWIFIEX_IE_TYPE_GEN_IE;
1463 gen_ie.len = ie_len;
1464 memcpy(gen_ie.ie_data, ie, ie_len);
1465 if (mwifiex_misc_ioctl_gen_ie(priv, &gen_ie, HostCmd_ACT_GEN_SET))
1466 return -EFAULT;
1467
1468 return 0;
1469 }
1470
1471 /* This function get Host Sleep wake up reason.
1472 *
1473 */
mwifiex_get_wakeup_reason(struct mwifiex_private * priv,u16 action,int cmd_type,struct mwifiex_ds_wakeup_reason * wakeup_reason)1474 int mwifiex_get_wakeup_reason(struct mwifiex_private *priv, u16 action,
1475 int cmd_type,
1476 struct mwifiex_ds_wakeup_reason *wakeup_reason)
1477 {
1478 int status = 0;
1479
1480 status = mwifiex_send_cmd(priv, HostCmd_CMD_HS_WAKEUP_REASON,
1481 HostCmd_ACT_GEN_GET, 0, wakeup_reason,
1482 cmd_type == MWIFIEX_SYNC_CMD);
1483
1484 return status;
1485 }
1486
mwifiex_get_chan_info(struct mwifiex_private * priv,struct mwifiex_channel_band * channel_band)1487 int mwifiex_get_chan_info(struct mwifiex_private *priv,
1488 struct mwifiex_channel_band *channel_band)
1489 {
1490 int status = 0;
1491
1492 status = mwifiex_send_cmd(priv, HostCmd_CMD_STA_CONFIGURE,
1493 HostCmd_ACT_GEN_GET, 0, channel_band,
1494 MWIFIEX_SYNC_CMD);
1495
1496 return status;
1497 }
1498
