xref: /linux/drivers/net/wireless/microchip/wilc1000/hif.c (revision 66e72a01b60ae6950ddbb3585fdc1424d303e14b)
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries.
4  * All rights reserved.
5  */
6 
7 #include "netdev.h"
8 
9 #define WILC_HIF_SCAN_TIMEOUT_MS                5000
10 #define WILC_HIF_CONNECT_TIMEOUT_MS             9500
11 
12 #define WILC_FALSE_FRMWR_CHANNEL		100
13 
14 #define WILC_SCAN_WID_LIST_SIZE		6
15 
16 struct wilc_rcvd_mac_info {
17 	u8 status;
18 };
19 
20 struct wilc_set_multicast {
21 	u32 enabled;
22 	u32 cnt;
23 	u8 *mc_list;
24 };
25 
26 struct host_if_wowlan_trigger {
27 	u8 wowlan_trigger;
28 };
29 
30 struct wilc_del_all_sta {
31 	u8 assoc_sta;
32 	u8 mac[WILC_MAX_NUM_STA][ETH_ALEN];
33 };
34 
35 union wilc_message_body {
36 	struct wilc_rcvd_net_info net_info;
37 	struct wilc_rcvd_mac_info mac_info;
38 	struct wilc_set_multicast mc_info;
39 	struct wilc_remain_ch remain_on_ch;
40 	char *data;
41 	struct host_if_wowlan_trigger wow_trigger;
42 };
43 
44 struct host_if_msg {
45 	union wilc_message_body body;
46 	struct wilc_vif *vif;
47 	struct work_struct work;
48 	void (*fn)(struct work_struct *ws);
49 	struct completion work_comp;
50 	bool is_sync;
51 };
52 
53 /* 'msg' should be free by the caller for syc */
54 static struct host_if_msg*
55 wilc_alloc_work(struct wilc_vif *vif, void (*work_fun)(struct work_struct *),
56 		bool is_sync)
57 {
58 	struct host_if_msg *msg;
59 
60 	if (!work_fun)
61 		return ERR_PTR(-EINVAL);
62 
63 	msg = kzalloc(sizeof(*msg), GFP_ATOMIC);
64 	if (!msg)
65 		return ERR_PTR(-ENOMEM);
66 	msg->fn = work_fun;
67 	msg->vif = vif;
68 	msg->is_sync = is_sync;
69 	if (is_sync)
70 		init_completion(&msg->work_comp);
71 
72 	return msg;
73 }
74 
75 static int wilc_enqueue_work(struct host_if_msg *msg)
76 {
77 	INIT_WORK(&msg->work, msg->fn);
78 
79 	if (!msg->vif || !msg->vif->wilc || !msg->vif->wilc->hif_workqueue)
80 		return -EINVAL;
81 
82 	if (!queue_work(msg->vif->wilc->hif_workqueue, &msg->work))
83 		return -EINVAL;
84 
85 	return 0;
86 }
87 
88 /* The idx starts from 0 to (NUM_CONCURRENT_IFC - 1), but 0 index used as
89  * special purpose in wilc device, so we add 1 to the index to starts from 1.
90  * As a result, the returned index will be 1 to NUM_CONCURRENT_IFC.
91  */
92 int wilc_get_vif_idx(struct wilc_vif *vif)
93 {
94 	return vif->idx + 1;
95 }
96 
97 /* We need to minus 1 from idx which is from wilc device to get real index
98  * of wilc->vif[], because we add 1 when pass to wilc device in the function
99  * wilc_get_vif_idx.
100  * As a result, the index should be between 0 and (NUM_CONCURRENT_IFC - 1).
101  */
102 static struct wilc_vif *wilc_get_vif_from_idx(struct wilc *wilc, int idx)
103 {
104 	int index = idx - 1;
105 	struct wilc_vif *vif;
106 
107 	if (index < 0 || index >= WILC_NUM_CONCURRENT_IFC)
108 		return NULL;
109 
110 	wilc_for_each_vif(wilc, vif) {
111 		if (vif->idx == index)
112 			return vif;
113 	}
114 
115 	return NULL;
116 }
117 
118 static int handle_scan_done(struct wilc_vif *vif, enum scan_event evt)
119 {
120 	int result = 0;
121 	u8 abort_running_scan;
122 	struct wid wid;
123 	struct host_if_drv *hif_drv = vif->hif_drv;
124 	struct wilc_user_scan_req *scan_req;
125 
126 	if (evt == SCAN_EVENT_ABORTED) {
127 		abort_running_scan = 1;
128 		wid.id = WID_ABORT_RUNNING_SCAN;
129 		wid.type = WID_CHAR;
130 		wid.val = (s8 *)&abort_running_scan;
131 		wid.size = sizeof(char);
132 
133 		result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
134 		if (result) {
135 			netdev_err(vif->ndev, "Failed to set abort running\n");
136 			result = -EFAULT;
137 		}
138 	}
139 
140 	if (!hif_drv) {
141 		netdev_err(vif->ndev, "%s: hif driver is NULL\n", __func__);
142 		return result;
143 	}
144 
145 	scan_req = &hif_drv->usr_scan_req;
146 	if (scan_req->scan_result) {
147 		scan_req->scan_result(evt, NULL, scan_req->priv);
148 		scan_req->scan_result = NULL;
149 	}
150 
151 	return result;
152 }
153 
154 int wilc_scan(struct wilc_vif *vif, u8 scan_source,
155 	      u8 scan_type, u8 *ch_freq_list,
156 	      void (*scan_result_fn)(enum scan_event,
157 				     struct wilc_rcvd_net_info *,
158 				     struct wilc_priv *),
159 	      struct cfg80211_scan_request *request)
160 {
161 	int result = 0;
162 	struct wid wid_list[WILC_SCAN_WID_LIST_SIZE];
163 	u32 index = 0;
164 	u32 i, scan_timeout;
165 	u8 *buffer;
166 	u8 valuesize = 0;
167 	u8 *search_ssid_vals = NULL;
168 	const u8 ch_list_len = request->n_channels;
169 	struct host_if_drv *hif_drv = vif->hif_drv;
170 
171 	if (hif_drv->hif_state >= HOST_IF_SCANNING &&
172 	    hif_drv->hif_state < HOST_IF_CONNECTED) {
173 		netdev_err(vif->ndev, "Already scan\n");
174 		result = -EBUSY;
175 		goto error;
176 	}
177 
178 	if (vif->connecting) {
179 		netdev_err(vif->ndev, "Don't do obss scan\n");
180 		result = -EBUSY;
181 		goto error;
182 	}
183 
184 	hif_drv->usr_scan_req.ch_cnt = 0;
185 
186 	if (request->n_ssids) {
187 		for (i = 0; i < request->n_ssids; i++)
188 			valuesize += ((request->ssids[i].ssid_len) + 1);
189 		search_ssid_vals = kmalloc(valuesize + 1, GFP_KERNEL);
190 		if (search_ssid_vals) {
191 			wid_list[index].id = WID_SSID_PROBE_REQ;
192 			wid_list[index].type = WID_STR;
193 			wid_list[index].val = search_ssid_vals;
194 			buffer = wid_list[index].val;
195 
196 			*buffer++ = request->n_ssids;
197 
198 			for (i = 0; i < request->n_ssids; i++) {
199 				*buffer++ = request->ssids[i].ssid_len;
200 				memcpy(buffer, request->ssids[i].ssid,
201 				       request->ssids[i].ssid_len);
202 				buffer += request->ssids[i].ssid_len;
203 			}
204 			wid_list[index].size = (s32)(valuesize + 1);
205 			index++;
206 		}
207 	}
208 
209 	wid_list[index].id = WID_INFO_ELEMENT_PROBE;
210 	wid_list[index].type = WID_BIN_DATA;
211 	wid_list[index].val = (s8 *)request->ie;
212 	wid_list[index].size = request->ie_len;
213 	index++;
214 
215 	wid_list[index].id = WID_SCAN_TYPE;
216 	wid_list[index].type = WID_CHAR;
217 	wid_list[index].size = sizeof(char);
218 	wid_list[index].val = (s8 *)&scan_type;
219 	index++;
220 
221 	if (scan_type == WILC_FW_PASSIVE_SCAN && request->duration) {
222 		wid_list[index].id = WID_PASSIVE_SCAN_TIME;
223 		wid_list[index].type = WID_SHORT;
224 		wid_list[index].size = sizeof(u16);
225 		wid_list[index].val = (s8 *)&request->duration;
226 		index++;
227 
228 		scan_timeout = (request->duration * ch_list_len) + 500;
229 	} else {
230 		scan_timeout = WILC_HIF_SCAN_TIMEOUT_MS;
231 	}
232 
233 	wid_list[index].id = WID_SCAN_CHANNEL_LIST;
234 	wid_list[index].type = WID_BIN_DATA;
235 
236 	if (ch_freq_list && ch_list_len > 0) {
237 		for (i = 0; i < ch_list_len; i++) {
238 			if (ch_freq_list[i] > 0)
239 				ch_freq_list[i] -= 1;
240 		}
241 	}
242 
243 	wid_list[index].val = ch_freq_list;
244 	wid_list[index].size = ch_list_len;
245 	index++;
246 
247 	wid_list[index].id = WID_START_SCAN_REQ;
248 	wid_list[index].type = WID_CHAR;
249 	wid_list[index].size = sizeof(char);
250 	wid_list[index].val = (s8 *)&scan_source;
251 	index++;
252 
253 	hif_drv->usr_scan_req.scan_result = scan_result_fn;
254 	hif_drv->usr_scan_req.priv = &vif->priv;
255 
256 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, wid_list, index);
257 	if (result) {
258 		netdev_err(vif->ndev, "Failed to send scan parameters\n");
259 		goto error;
260 	}
261 
262 	hif_drv->scan_timer_vif = vif;
263 	mod_timer(&hif_drv->scan_timer,
264 		  jiffies + msecs_to_jiffies(scan_timeout));
265 
266 error:
267 
268 	kfree(search_ssid_vals);
269 
270 	return result;
271 }
272 
273 static int wilc_send_connect_wid(struct wilc_vif *vif)
274 {
275 	int result = 0;
276 	struct wid wid_list[5];
277 	u32 wid_cnt = 0;
278 	struct host_if_drv *hif_drv = vif->hif_drv;
279 	struct wilc_conn_info *conn_attr = &hif_drv->conn_info;
280 	struct wilc_join_bss_param *bss_param = conn_attr->param;
281 
282 
283         wid_list[wid_cnt].id = WID_SET_MFP;
284         wid_list[wid_cnt].type = WID_CHAR;
285         wid_list[wid_cnt].size = sizeof(char);
286         wid_list[wid_cnt].val = (s8 *)&conn_attr->mfp_type;
287         wid_cnt++;
288 
289 	wid_list[wid_cnt].id = WID_INFO_ELEMENT_ASSOCIATE;
290 	wid_list[wid_cnt].type = WID_BIN_DATA;
291 	wid_list[wid_cnt].val = conn_attr->req_ies;
292 	wid_list[wid_cnt].size = conn_attr->req_ies_len;
293 	wid_cnt++;
294 
295 	wid_list[wid_cnt].id = WID_11I_MODE;
296 	wid_list[wid_cnt].type = WID_CHAR;
297 	wid_list[wid_cnt].size = sizeof(char);
298 	wid_list[wid_cnt].val = (s8 *)&conn_attr->security;
299 	wid_cnt++;
300 
301 	wid_list[wid_cnt].id = WID_AUTH_TYPE;
302 	wid_list[wid_cnt].type = WID_CHAR;
303 	wid_list[wid_cnt].size = sizeof(char);
304 	wid_list[wid_cnt].val = (s8 *)&conn_attr->auth_type;
305 	wid_cnt++;
306 
307 	wid_list[wid_cnt].id = WID_JOIN_REQ_EXTENDED;
308 	wid_list[wid_cnt].type = WID_STR;
309 	wid_list[wid_cnt].size = sizeof(*bss_param);
310 	wid_list[wid_cnt].val = (u8 *)bss_param;
311 	wid_cnt++;
312 
313 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, wid_list, wid_cnt);
314 	if (result) {
315 		netdev_err(vif->ndev, "failed to send config packet\n");
316 		goto error;
317 	} else {
318                 if (conn_attr->auth_type == WILC_FW_AUTH_SAE)
319                         hif_drv->hif_state = HOST_IF_EXTERNAL_AUTH;
320                 else
321                         hif_drv->hif_state = HOST_IF_WAITING_CONN_RESP;
322 	}
323 
324 	return 0;
325 
326 error:
327 
328 	kfree(conn_attr->req_ies);
329 	conn_attr->req_ies = NULL;
330 
331 	return result;
332 }
333 
334 static void handle_connect_timeout(struct work_struct *work)
335 {
336 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
337 	struct wilc_vif *vif = msg->vif;
338 	int result;
339 	struct wid wid;
340 	u16 dummy_reason_code = 0;
341 	struct host_if_drv *hif_drv = vif->hif_drv;
342 
343 	if (!hif_drv) {
344 		netdev_err(vif->ndev, "%s: hif driver is NULL\n", __func__);
345 		goto out;
346 	}
347 
348 	hif_drv->hif_state = HOST_IF_IDLE;
349 
350 	if (hif_drv->conn_info.conn_result) {
351 		hif_drv->conn_info.conn_result(CONN_DISCONN_EVENT_CONN_RESP,
352 					       WILC_MAC_STATUS_DISCONNECTED,
353 					       hif_drv->conn_info.priv);
354 
355 	} else {
356 		netdev_err(vif->ndev, "%s: conn_result is NULL\n", __func__);
357 	}
358 
359 	wid.id = WID_DISCONNECT;
360 	wid.type = WID_CHAR;
361 	wid.val = (s8 *)&dummy_reason_code;
362 	wid.size = sizeof(char);
363 
364 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
365 	if (result)
366 		netdev_err(vif->ndev, "Failed to send disconnect\n");
367 
368 	hif_drv->conn_info.req_ies_len = 0;
369 	kfree(hif_drv->conn_info.req_ies);
370 	hif_drv->conn_info.req_ies = NULL;
371 
372 out:
373 	kfree(msg);
374 }
375 
376 struct wilc_join_bss_param *
377 wilc_parse_join_bss_param(struct cfg80211_bss *bss,
378 			  struct cfg80211_crypto_settings *crypto)
379 {
380 	const u8 *ies_data, *tim_elm, *ssid_elm, *rates_ie, *supp_rates_ie;
381 	const u8 *ht_ie, *wpa_ie, *wmm_ie, *rsn_ie;
382 	struct ieee80211_p2p_noa_attr noa_attr;
383 	const struct cfg80211_bss_ies *ies;
384 	struct wilc_join_bss_param *param;
385 	u8 rates_len = 0;
386 	int ies_len;
387 	int ret;
388 
389 	param = kzalloc(sizeof(*param), GFP_KERNEL);
390 	if (!param)
391 		return NULL;
392 
393 	rcu_read_lock();
394 	ies = rcu_dereference(bss->ies);
395 	ies_data = kmemdup(ies->data, ies->len, GFP_ATOMIC);
396 	if (!ies_data) {
397 		rcu_read_unlock();
398 		kfree(param);
399 		return NULL;
400 	}
401 	ies_len = ies->len;
402 	rcu_read_unlock();
403 
404 	param->beacon_period = cpu_to_le16(bss->beacon_interval);
405 	param->cap_info = cpu_to_le16(bss->capability);
406 	param->bss_type = WILC_FW_BSS_TYPE_INFRA;
407 	param->ch = ieee80211_frequency_to_channel(bss->channel->center_freq);
408 	ether_addr_copy(param->bssid, bss->bssid);
409 
410 	ssid_elm = cfg80211_find_ie(WLAN_EID_SSID, ies_data, ies_len);
411 	if (ssid_elm) {
412 		if (ssid_elm[1] <= IEEE80211_MAX_SSID_LEN)
413 			memcpy(param->ssid, ssid_elm + 2, ssid_elm[1]);
414 	}
415 
416 	tim_elm = cfg80211_find_ie(WLAN_EID_TIM, ies_data, ies_len);
417 	if (tim_elm && tim_elm[1] >= 2)
418 		param->dtim_period = tim_elm[3];
419 
420 	memset(param->p_suites, 0xFF, 3);
421 	memset(param->akm_suites, 0xFF, 3);
422 
423 	rates_ie = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies_data, ies_len);
424 	if (rates_ie) {
425 		rates_len = rates_ie[1];
426 		if (rates_len > WILC_MAX_RATES_SUPPORTED)
427 			rates_len = WILC_MAX_RATES_SUPPORTED;
428 		param->supp_rates[0] = rates_len;
429 		memcpy(&param->supp_rates[1], rates_ie + 2, rates_len);
430 	}
431 
432 	if (rates_len < WILC_MAX_RATES_SUPPORTED) {
433 		supp_rates_ie = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES,
434 						 ies_data, ies_len);
435 		if (supp_rates_ie) {
436 			u8 ext_rates = supp_rates_ie[1];
437 
438 			if (ext_rates > (WILC_MAX_RATES_SUPPORTED - rates_len))
439 				param->supp_rates[0] = WILC_MAX_RATES_SUPPORTED;
440 			else
441 				param->supp_rates[0] += ext_rates;
442 
443 			memcpy(&param->supp_rates[rates_len + 1],
444 			       supp_rates_ie + 2,
445 			       (param->supp_rates[0] - rates_len));
446 		}
447 	}
448 
449 	ht_ie = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies_data, ies_len);
450 	if (ht_ie)
451 		param->ht_capable = true;
452 
453 	ret = cfg80211_get_p2p_attr(ies_data, ies_len,
454 				    IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
455 				    (u8 *)&noa_attr, sizeof(noa_attr));
456 	if (ret > 0) {
457 		param->tsf_lo = cpu_to_le32(ies->tsf);
458 		param->noa_enabled = 1;
459 		param->idx = noa_attr.index;
460 		if (noa_attr.oppps_ctwindow & IEEE80211_P2P_OPPPS_ENABLE_BIT) {
461 			param->opp_enabled = 1;
462 			param->opp_en.ct_window = noa_attr.oppps_ctwindow;
463 			param->opp_en.cnt = noa_attr.desc[0].count;
464 			param->opp_en.duration = noa_attr.desc[0].duration;
465 			param->opp_en.interval = noa_attr.desc[0].interval;
466 			param->opp_en.start_time = noa_attr.desc[0].start_time;
467 		} else {
468 			param->opp_enabled = 0;
469 			param->opp_dis.cnt = noa_attr.desc[0].count;
470 			param->opp_dis.duration = noa_attr.desc[0].duration;
471 			param->opp_dis.interval = noa_attr.desc[0].interval;
472 			param->opp_dis.start_time = noa_attr.desc[0].start_time;
473 		}
474 	}
475 	wmm_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
476 					 WLAN_OUI_TYPE_MICROSOFT_WMM,
477 					 ies_data, ies_len);
478 	if (wmm_ie) {
479 		struct ieee80211_wmm_param_ie *ie;
480 
481 		ie = (struct ieee80211_wmm_param_ie *)wmm_ie;
482 		if ((ie->oui_subtype == 0 || ie->oui_subtype == 1) &&
483 		    ie->version == 1) {
484 			param->wmm_cap = true;
485 			if (ie->qos_info & BIT(7))
486 				param->uapsd_cap = true;
487 		}
488 	}
489 
490 	wpa_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
491 					 WLAN_OUI_TYPE_MICROSOFT_WPA,
492 					 ies_data, ies_len);
493 	if (wpa_ie) {
494 		param->mode_802_11i = 1;
495 		param->rsn_found = true;
496 	}
497 
498 	rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, ies_data, ies_len);
499 	if (rsn_ie) {
500 		int rsn_ie_len = sizeof(struct element) + rsn_ie[1];
501 		int offset = 8;
502 
503 		param->mode_802_11i = 2;
504 		param->rsn_found = true;
505 
506 		/* extract RSN capabilities */
507 		if (offset < rsn_ie_len) {
508 			/* skip over pairwise suites */
509 			offset += (rsn_ie[offset] * 4) + 2;
510 
511 			if (offset < rsn_ie_len) {
512 				/* skip over authentication suites */
513 				offset += (rsn_ie[offset] * 4) + 2;
514 
515 				if (offset + 1 < rsn_ie_len)
516 					memcpy(param->rsn_cap, &rsn_ie[offset], 2);
517 			}
518 		}
519 	}
520 
521 	if (param->rsn_found) {
522 		int i;
523 
524 		param->rsn_grp_policy = crypto->cipher_group & 0xFF;
525 		for (i = 0; i < crypto->n_ciphers_pairwise && i < 3; i++)
526 			param->p_suites[i] = crypto->ciphers_pairwise[i] & 0xFF;
527 
528 		for (i = 0; i < crypto->n_akm_suites && i < 3; i++)
529 			param->akm_suites[i] = crypto->akm_suites[i] & 0xFF;
530 	}
531 
532 	kfree(ies_data);
533 	return (void *)param;
534 }
535 
536 static void handle_rcvd_ntwrk_info(struct work_struct *work)
537 {
538 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
539 	struct wilc_rcvd_net_info *rcvd_info = &msg->body.net_info;
540 	struct wilc_user_scan_req *scan_req = &msg->vif->hif_drv->usr_scan_req;
541 	const u8 *ch_elm;
542 	u8 *ies;
543 	int ies_len;
544 	size_t offset;
545 
546 	if (ieee80211_is_probe_resp(rcvd_info->mgmt->frame_control))
547 		offset = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
548 	else if (ieee80211_is_beacon(rcvd_info->mgmt->frame_control))
549 		offset = offsetof(struct ieee80211_mgmt, u.beacon.variable);
550 	else
551 		goto done;
552 
553 	ies = rcvd_info->mgmt->u.beacon.variable;
554 	ies_len = rcvd_info->frame_len - offset;
555 	if (ies_len <= 0)
556 		goto done;
557 
558 	ch_elm = cfg80211_find_ie(WLAN_EID_DS_PARAMS, ies, ies_len);
559 	if (ch_elm && ch_elm[1] > 0)
560 		rcvd_info->ch = ch_elm[2];
561 
562 	if (scan_req->scan_result)
563 		scan_req->scan_result(SCAN_EVENT_NETWORK_FOUND, rcvd_info,
564 				      scan_req->priv);
565 
566 done:
567 	kfree(rcvd_info->mgmt);
568 	kfree(msg);
569 }
570 
571 static void host_int_get_assoc_res_info(struct wilc_vif *vif,
572 					u8 *assoc_resp_info,
573 					u32 max_assoc_resp_info_len,
574 					u32 *rcvd_assoc_resp_info_len)
575 {
576 	int result;
577 	struct wid wid;
578 
579 	wid.id = WID_ASSOC_RES_INFO;
580 	wid.type = WID_STR;
581 	wid.val = assoc_resp_info;
582 	wid.size = max_assoc_resp_info_len;
583 
584 	result = wilc_send_config_pkt(vif, WILC_GET_CFG, &wid, 1);
585 	if (result) {
586 		*rcvd_assoc_resp_info_len = 0;
587 		netdev_err(vif->ndev, "Failed to send association response\n");
588 		return;
589 	}
590 
591 	*rcvd_assoc_resp_info_len = wid.size;
592 }
593 
594 static s32 wilc_parse_assoc_resp_info(u8 *buffer, u32 buffer_len,
595 				      struct wilc_conn_info *ret_conn_info)
596 {
597 	u8 *ies;
598 	u16 ies_len;
599 	struct wilc_assoc_resp *res = (struct wilc_assoc_resp *)buffer;
600 
601 	ret_conn_info->status = le16_to_cpu(res->status_code);
602 	if (ret_conn_info->status == WLAN_STATUS_SUCCESS) {
603 		ies = &buffer[sizeof(*res)];
604 		ies_len = buffer_len - sizeof(*res);
605 
606 		ret_conn_info->resp_ies = kmemdup(ies, ies_len, GFP_KERNEL);
607 		if (!ret_conn_info->resp_ies)
608 			return -ENOMEM;
609 
610 		ret_conn_info->resp_ies_len = ies_len;
611 	}
612 
613 	return 0;
614 }
615 
616 static inline void host_int_parse_assoc_resp_info(struct wilc_vif *vif,
617 						  u8 mac_status)
618 {
619 	struct host_if_drv *hif_drv = vif->hif_drv;
620 	struct wilc_conn_info *conn_info = &hif_drv->conn_info;
621 
622 	if (mac_status == WILC_MAC_STATUS_CONNECTED) {
623 		u32 assoc_resp_info_len;
624 
625 		memset(hif_drv->assoc_resp, 0, WILC_MAX_ASSOC_RESP_FRAME_SIZE);
626 
627 		host_int_get_assoc_res_info(vif, hif_drv->assoc_resp,
628 					    WILC_MAX_ASSOC_RESP_FRAME_SIZE,
629 					    &assoc_resp_info_len);
630 
631 		if (assoc_resp_info_len != 0) {
632 			s32 err = 0;
633 
634 			err = wilc_parse_assoc_resp_info(hif_drv->assoc_resp,
635 							 assoc_resp_info_len,
636 							 conn_info);
637 			if (err)
638 				netdev_err(vif->ndev,
639 					   "wilc_parse_assoc_resp_info() returned error %d\n",
640 					   err);
641 		}
642 	}
643 
644 	del_timer(&hif_drv->connect_timer);
645 	conn_info->conn_result(CONN_DISCONN_EVENT_CONN_RESP, mac_status,
646 			       hif_drv->conn_info.priv);
647 
648 	if (mac_status == WILC_MAC_STATUS_CONNECTED &&
649 	    conn_info->status == WLAN_STATUS_SUCCESS) {
650 		ether_addr_copy(hif_drv->assoc_bssid, conn_info->bssid);
651 		hif_drv->hif_state = HOST_IF_CONNECTED;
652 	} else {
653 		hif_drv->hif_state = HOST_IF_IDLE;
654 	}
655 
656 	kfree(conn_info->resp_ies);
657 	conn_info->resp_ies = NULL;
658 	conn_info->resp_ies_len = 0;
659 
660 	kfree(conn_info->req_ies);
661 	conn_info->req_ies = NULL;
662 	conn_info->req_ies_len = 0;
663 }
664 
665 void wilc_handle_disconnect(struct wilc_vif *vif)
666 {
667 	struct host_if_drv *hif_drv = vif->hif_drv;
668 
669 	if (hif_drv->usr_scan_req.scan_result) {
670 		del_timer(&hif_drv->scan_timer);
671 		handle_scan_done(vif, SCAN_EVENT_ABORTED);
672 	}
673 
674 	if (hif_drv->conn_info.conn_result)
675 		hif_drv->conn_info.conn_result(CONN_DISCONN_EVENT_DISCONN_NOTIF,
676 					       0, hif_drv->conn_info.priv);
677 
678 	eth_zero_addr(hif_drv->assoc_bssid);
679 
680 	hif_drv->conn_info.req_ies_len = 0;
681 	kfree(hif_drv->conn_info.req_ies);
682 	hif_drv->conn_info.req_ies = NULL;
683 	hif_drv->hif_state = HOST_IF_IDLE;
684 }
685 
686 static void handle_rcvd_gnrl_async_info(struct work_struct *work)
687 {
688 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
689 	struct wilc_vif *vif = msg->vif;
690 	struct wilc_rcvd_mac_info *mac_info = &msg->body.mac_info;
691 	struct host_if_drv *hif_drv = vif->hif_drv;
692 
693 	if (!hif_drv) {
694 		netdev_err(vif->ndev, "%s: hif driver is NULL\n", __func__);
695 		goto free_msg;
696 	}
697 
698 	if (!hif_drv->conn_info.conn_result) {
699 		netdev_err(vif->ndev, "%s: conn_result is NULL\n", __func__);
700 		goto free_msg;
701 	}
702 
703 
704         if (hif_drv->hif_state == HOST_IF_EXTERNAL_AUTH) {
705                 cfg80211_external_auth_request(vif->ndev, &vif->auth,
706 					       GFP_KERNEL);
707                 hif_drv->hif_state = HOST_IF_WAITING_CONN_RESP;
708         } else if (hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP) {
709 		host_int_parse_assoc_resp_info(vif, mac_info->status);
710 	} else if (mac_info->status == WILC_MAC_STATUS_DISCONNECTED) {
711 		if (hif_drv->hif_state == HOST_IF_CONNECTED) {
712 			wilc_handle_disconnect(vif);
713 		} else if (hif_drv->usr_scan_req.scan_result) {
714 			del_timer(&hif_drv->scan_timer);
715 			handle_scan_done(vif, SCAN_EVENT_ABORTED);
716 		}
717 	}
718 
719 free_msg:
720 	kfree(msg);
721 }
722 
723 int wilc_disconnect(struct wilc_vif *vif)
724 {
725 	struct wid wid;
726 	struct host_if_drv *hif_drv = vif->hif_drv;
727 	struct wilc_user_scan_req *scan_req;
728 	struct wilc_conn_info *conn_info;
729 	int result;
730 	u16 dummy_reason_code = 0;
731 
732 	wid.id = WID_DISCONNECT;
733 	wid.type = WID_CHAR;
734 	wid.val = (s8 *)&dummy_reason_code;
735 	wid.size = sizeof(char);
736 
737 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
738 	if (result) {
739 		netdev_err(vif->ndev, "Failed to send disconnect\n");
740 		return result;
741 	}
742 
743 	scan_req = &hif_drv->usr_scan_req;
744 	conn_info = &hif_drv->conn_info;
745 
746 	if (scan_req->scan_result) {
747 		del_timer(&hif_drv->scan_timer);
748 		scan_req->scan_result(SCAN_EVENT_ABORTED, NULL, scan_req->priv);
749 		scan_req->scan_result = NULL;
750 	}
751 
752 	if (conn_info->conn_result) {
753 		if (hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP ||
754 		    hif_drv->hif_state == HOST_IF_EXTERNAL_AUTH)
755 			del_timer(&hif_drv->connect_timer);
756 
757 		conn_info->conn_result(CONN_DISCONN_EVENT_DISCONN_NOTIF, 0,
758 				       conn_info->priv);
759 	} else {
760 		netdev_err(vif->ndev, "%s: conn_result is NULL\n", __func__);
761 	}
762 
763 	hif_drv->hif_state = HOST_IF_IDLE;
764 
765 	eth_zero_addr(hif_drv->assoc_bssid);
766 
767 	conn_info->req_ies_len = 0;
768 	kfree(conn_info->req_ies);
769 	conn_info->req_ies = NULL;
770 
771 	return 0;
772 }
773 
774 int wilc_get_statistics(struct wilc_vif *vif, struct rf_info *stats)
775 {
776 	struct wid wid_list[5];
777 	u32 wid_cnt = 0, result;
778 
779 	wid_list[wid_cnt].id = WID_LINKSPEED;
780 	wid_list[wid_cnt].type = WID_CHAR;
781 	wid_list[wid_cnt].size = sizeof(char);
782 	wid_list[wid_cnt].val = (s8 *)&stats->link_speed;
783 	wid_cnt++;
784 
785 	wid_list[wid_cnt].id = WID_RSSI;
786 	wid_list[wid_cnt].type = WID_CHAR;
787 	wid_list[wid_cnt].size = sizeof(char);
788 	wid_list[wid_cnt].val = (s8 *)&stats->rssi;
789 	wid_cnt++;
790 
791 	wid_list[wid_cnt].id = WID_SUCCESS_FRAME_COUNT;
792 	wid_list[wid_cnt].type = WID_INT;
793 	wid_list[wid_cnt].size = sizeof(u32);
794 	wid_list[wid_cnt].val = (s8 *)&stats->tx_cnt;
795 	wid_cnt++;
796 
797 	wid_list[wid_cnt].id = WID_RECEIVED_FRAGMENT_COUNT;
798 	wid_list[wid_cnt].type = WID_INT;
799 	wid_list[wid_cnt].size = sizeof(u32);
800 	wid_list[wid_cnt].val = (s8 *)&stats->rx_cnt;
801 	wid_cnt++;
802 
803 	wid_list[wid_cnt].id = WID_FAILED_COUNT;
804 	wid_list[wid_cnt].type = WID_INT;
805 	wid_list[wid_cnt].size = sizeof(u32);
806 	wid_list[wid_cnt].val = (s8 *)&stats->tx_fail_cnt;
807 	wid_cnt++;
808 
809 	result = wilc_send_config_pkt(vif, WILC_GET_CFG, wid_list, wid_cnt);
810 	if (result) {
811 		netdev_err(vif->ndev, "Failed to send scan parameters\n");
812 		return result;
813 	}
814 
815 	if (stats->link_speed > TCP_ACK_FILTER_LINK_SPEED_THRESH &&
816 	    stats->link_speed != DEFAULT_LINK_SPEED)
817 		wilc_enable_tcp_ack_filter(vif, true);
818 	else if (stats->link_speed != DEFAULT_LINK_SPEED)
819 		wilc_enable_tcp_ack_filter(vif, false);
820 
821 	return result;
822 }
823 
824 static void handle_get_statistics(struct work_struct *work)
825 {
826 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
827 	struct wilc_vif *vif = msg->vif;
828 	struct rf_info *stats = (struct rf_info *)msg->body.data;
829 
830 	wilc_get_statistics(vif, stats);
831 
832 	kfree(msg);
833 }
834 
835 static void wilc_hif_pack_sta_param(u8 *cur_byte, const u8 *mac,
836 				    struct station_parameters *params)
837 {
838 	ether_addr_copy(cur_byte, mac);
839 	cur_byte += ETH_ALEN;
840 
841 	put_unaligned_le16(params->aid, cur_byte);
842 	cur_byte += 2;
843 
844 	*cur_byte++ = params->link_sta_params.supported_rates_len;
845 	if (params->link_sta_params.supported_rates_len > 0)
846 		memcpy(cur_byte, params->link_sta_params.supported_rates,
847 		       params->link_sta_params.supported_rates_len);
848 	cur_byte += params->link_sta_params.supported_rates_len;
849 
850 	if (params->link_sta_params.ht_capa) {
851 		*cur_byte++ = true;
852 		memcpy(cur_byte, params->link_sta_params.ht_capa,
853 		       sizeof(struct ieee80211_ht_cap));
854 	} else {
855 		*cur_byte++ = false;
856 	}
857 	cur_byte += sizeof(struct ieee80211_ht_cap);
858 
859 	put_unaligned_le16(params->sta_flags_mask, cur_byte);
860 	cur_byte += 2;
861 	put_unaligned_le16(params->sta_flags_set, cur_byte);
862 }
863 
864 static int handle_remain_on_chan(struct wilc_vif *vif,
865 				 struct wilc_remain_ch *hif_remain_ch)
866 {
867 	int result;
868 	u8 remain_on_chan_flag;
869 	struct wid wid;
870 	struct host_if_drv *hif_drv = vif->hif_drv;
871 
872 	if (hif_drv->usr_scan_req.scan_result)
873 		return -EBUSY;
874 
875 	if (hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP)
876 		return -EBUSY;
877 
878 	if (vif->connecting)
879 		return -EBUSY;
880 
881 	remain_on_chan_flag = true;
882 	wid.id = WID_REMAIN_ON_CHAN;
883 	wid.type = WID_STR;
884 	wid.size = 2;
885 	wid.val = kmalloc(wid.size, GFP_KERNEL);
886 	if (!wid.val)
887 		return -ENOMEM;
888 
889 	wid.val[0] = remain_on_chan_flag;
890 	wid.val[1] = (s8)hif_remain_ch->ch;
891 
892 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
893 	kfree(wid.val);
894 	if (result)
895 		return -EBUSY;
896 
897 	hif_drv->remain_on_ch.vif = hif_remain_ch->vif;
898 	hif_drv->remain_on_ch.expired = hif_remain_ch->expired;
899 	hif_drv->remain_on_ch.ch = hif_remain_ch->ch;
900 	hif_drv->remain_on_ch.cookie = hif_remain_ch->cookie;
901 	hif_drv->remain_on_ch_timer_vif = vif;
902 
903 	return 0;
904 }
905 
906 static int wilc_handle_roc_expired(struct wilc_vif *vif, u64 cookie)
907 {
908 	u8 remain_on_chan_flag;
909 	struct wid wid;
910 	int result;
911 	struct host_if_drv *hif_drv = vif->hif_drv;
912 
913 	if (vif->priv.p2p_listen_state) {
914 		remain_on_chan_flag = false;
915 		wid.id = WID_REMAIN_ON_CHAN;
916 		wid.type = WID_STR;
917 		wid.size = 2;
918 
919 		wid.val = kmalloc(wid.size, GFP_KERNEL);
920 		if (!wid.val)
921 			return -ENOMEM;
922 
923 		wid.val[0] = remain_on_chan_flag;
924 		wid.val[1] = WILC_FALSE_FRMWR_CHANNEL;
925 
926 		result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
927 		kfree(wid.val);
928 		if (result != 0) {
929 			netdev_err(vif->ndev, "Failed to set remain channel\n");
930 			return -EINVAL;
931 		}
932 
933 		if (hif_drv->remain_on_ch.expired) {
934 			hif_drv->remain_on_ch.expired(hif_drv->remain_on_ch.vif,
935 						      cookie);
936 		}
937 	} else {
938 		netdev_dbg(vif->ndev, "Not in listen state\n");
939 	}
940 
941 	return 0;
942 }
943 
944 static void wilc_handle_listen_state_expired(struct work_struct *work)
945 {
946 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
947 
948 	wilc_handle_roc_expired(msg->vif, msg->body.remain_on_ch.cookie);
949 	kfree(msg);
950 }
951 
952 static void listen_timer_cb(struct timer_list *t)
953 {
954 	struct host_if_drv *hif_drv = from_timer(hif_drv, t,
955 						      remain_on_ch_timer);
956 	struct wilc_vif *vif = hif_drv->remain_on_ch_timer_vif;
957 	int result;
958 	struct host_if_msg *msg;
959 
960 	del_timer(&vif->hif_drv->remain_on_ch_timer);
961 
962 	msg = wilc_alloc_work(vif, wilc_handle_listen_state_expired, false);
963 	if (IS_ERR(msg))
964 		return;
965 
966 	msg->body.remain_on_ch.cookie = vif->hif_drv->remain_on_ch.cookie;
967 
968 	result = wilc_enqueue_work(msg);
969 	if (result) {
970 		netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__);
971 		kfree(msg);
972 	}
973 }
974 
975 static void handle_set_mcast_filter(struct work_struct *work)
976 {
977 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
978 	struct wilc_vif *vif = msg->vif;
979 	struct wilc_set_multicast *set_mc = &msg->body.mc_info;
980 	int result;
981 	struct wid wid;
982 	u8 *cur_byte;
983 
984 	wid.id = WID_SETUP_MULTICAST_FILTER;
985 	wid.type = WID_BIN;
986 	wid.size = sizeof(struct wilc_set_multicast) + (set_mc->cnt * ETH_ALEN);
987 	wid.val = kmalloc(wid.size, GFP_KERNEL);
988 	if (!wid.val)
989 		goto error;
990 
991 	cur_byte = wid.val;
992 	put_unaligned_le32(set_mc->enabled, cur_byte);
993 	cur_byte += 4;
994 
995 	put_unaligned_le32(set_mc->cnt, cur_byte);
996 	cur_byte += 4;
997 
998 	if (set_mc->cnt > 0 && set_mc->mc_list)
999 		memcpy(cur_byte, set_mc->mc_list, set_mc->cnt * ETH_ALEN);
1000 
1001 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1002 	if (result)
1003 		netdev_err(vif->ndev, "Failed to send setup multicast\n");
1004 
1005 error:
1006 	kfree(set_mc->mc_list);
1007 	kfree(wid.val);
1008 	kfree(msg);
1009 }
1010 
1011 void wilc_set_wowlan_trigger(struct wilc_vif *vif, bool enabled)
1012 {
1013 	int ret;
1014 	struct wid wid;
1015 	u8 wowlan_trigger = 0;
1016 
1017 	if (enabled)
1018 		wowlan_trigger = 1;
1019 
1020 	wid.id = WID_WOWLAN_TRIGGER;
1021 	wid.type = WID_CHAR;
1022 	wid.val = &wowlan_trigger;
1023 	wid.size = sizeof(char);
1024 
1025 	ret = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1026 	if (ret)
1027 		pr_err("Failed to send wowlan trigger config packet\n");
1028 }
1029 
1030 int wilc_set_external_auth_param(struct wilc_vif *vif,
1031 				 struct cfg80211_external_auth_params *auth)
1032 {
1033 	int ret;
1034 	struct wid wid;
1035 	struct wilc_external_auth_param *param;
1036 
1037 	wid.id = WID_EXTERNAL_AUTH_PARAM;
1038 	wid.type = WID_BIN_DATA;
1039 	wid.size = sizeof(*param);
1040 	param = kzalloc(sizeof(*param), GFP_KERNEL);
1041 	if (!param)
1042 		return -EINVAL;
1043 
1044 	wid.val = (u8 *)param;
1045 	param->action = auth->action;
1046 	ether_addr_copy(param->bssid, auth->bssid);
1047 	memcpy(param->ssid, auth->ssid.ssid, auth->ssid.ssid_len);
1048 	param->ssid_len = auth->ssid.ssid_len;
1049 	ret = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1050 
1051 	kfree(param);
1052 	return ret;
1053 }
1054 
1055 static void handle_scan_timer(struct work_struct *work)
1056 {
1057 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
1058 
1059 	handle_scan_done(msg->vif, SCAN_EVENT_ABORTED);
1060 	kfree(msg);
1061 }
1062 
1063 static void handle_scan_complete(struct work_struct *work)
1064 {
1065 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
1066 
1067 	del_timer(&msg->vif->hif_drv->scan_timer);
1068 
1069 	handle_scan_done(msg->vif, SCAN_EVENT_DONE);
1070 
1071 	kfree(msg);
1072 }
1073 
1074 static void timer_scan_cb(struct timer_list *t)
1075 {
1076 	struct host_if_drv *hif_drv = from_timer(hif_drv, t, scan_timer);
1077 	struct wilc_vif *vif = hif_drv->scan_timer_vif;
1078 	struct host_if_msg *msg;
1079 	int result;
1080 
1081 	msg = wilc_alloc_work(vif, handle_scan_timer, false);
1082 	if (IS_ERR(msg))
1083 		return;
1084 
1085 	result = wilc_enqueue_work(msg);
1086 	if (result)
1087 		kfree(msg);
1088 }
1089 
1090 static void timer_connect_cb(struct timer_list *t)
1091 {
1092 	struct host_if_drv *hif_drv = from_timer(hif_drv, t,
1093 						      connect_timer);
1094 	struct wilc_vif *vif = hif_drv->connect_timer_vif;
1095 	struct host_if_msg *msg;
1096 	int result;
1097 
1098 	msg = wilc_alloc_work(vif, handle_connect_timeout, false);
1099 	if (IS_ERR(msg))
1100 		return;
1101 
1102 	result = wilc_enqueue_work(msg);
1103 	if (result)
1104 		kfree(msg);
1105 }
1106 
1107 int wilc_add_ptk(struct wilc_vif *vif, const u8 *ptk, u8 ptk_key_len,
1108 		 const u8 *mac_addr, const u8 *rx_mic, const u8 *tx_mic,
1109 		 u8 mode, u8 cipher_mode, u8 index)
1110 {
1111 	int result = 0;
1112 	u8 t_key_len  = ptk_key_len + WILC_RX_MIC_KEY_LEN + WILC_TX_MIC_KEY_LEN;
1113 
1114 	if (mode == WILC_AP_MODE) {
1115 		struct wid wid_list[2];
1116 		struct wilc_ap_wpa_ptk *key_buf;
1117 
1118 		wid_list[0].id = WID_11I_MODE;
1119 		wid_list[0].type = WID_CHAR;
1120 		wid_list[0].size = sizeof(char);
1121 		wid_list[0].val = (s8 *)&cipher_mode;
1122 
1123 		key_buf = kzalloc(sizeof(*key_buf) + t_key_len, GFP_KERNEL);
1124 		if (!key_buf)
1125 			return -ENOMEM;
1126 
1127 		ether_addr_copy(key_buf->mac_addr, mac_addr);
1128 		key_buf->index = index;
1129 		key_buf->key_len = t_key_len;
1130 		memcpy(&key_buf->key[0], ptk, ptk_key_len);
1131 
1132 		if (rx_mic)
1133 			memcpy(&key_buf->key[ptk_key_len], rx_mic,
1134 			       WILC_RX_MIC_KEY_LEN);
1135 
1136 		if (tx_mic)
1137 			memcpy(&key_buf->key[ptk_key_len + WILC_RX_MIC_KEY_LEN],
1138 			       tx_mic, WILC_TX_MIC_KEY_LEN);
1139 
1140 		wid_list[1].id = WID_ADD_PTK;
1141 		wid_list[1].type = WID_STR;
1142 		wid_list[1].size = sizeof(*key_buf) + t_key_len;
1143 		wid_list[1].val = (u8 *)key_buf;
1144 		result = wilc_send_config_pkt(vif, WILC_SET_CFG, wid_list,
1145 					      ARRAY_SIZE(wid_list));
1146 		kfree(key_buf);
1147 	} else if (mode == WILC_STATION_MODE) {
1148 		struct wid wid;
1149 		struct wilc_sta_wpa_ptk *key_buf;
1150 
1151 		key_buf = kzalloc(sizeof(*key_buf) + t_key_len, GFP_KERNEL);
1152 		if (!key_buf)
1153 			return -ENOMEM;
1154 
1155 		ether_addr_copy(key_buf->mac_addr, mac_addr);
1156 		key_buf->key_len = t_key_len;
1157 		memcpy(&key_buf->key[0], ptk, ptk_key_len);
1158 
1159 		if (rx_mic)
1160 			memcpy(&key_buf->key[ptk_key_len], rx_mic,
1161 			       WILC_RX_MIC_KEY_LEN);
1162 
1163 		if (tx_mic)
1164 			memcpy(&key_buf->key[ptk_key_len + WILC_RX_MIC_KEY_LEN],
1165 			       tx_mic, WILC_TX_MIC_KEY_LEN);
1166 
1167 		wid.id = WID_ADD_PTK;
1168 		wid.type = WID_STR;
1169 		wid.size = sizeof(*key_buf) + t_key_len;
1170 		wid.val = (s8 *)key_buf;
1171 		result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1172 		kfree(key_buf);
1173 	}
1174 
1175 	return result;
1176 }
1177 
1178 int wilc_add_igtk(struct wilc_vif *vif, const u8 *igtk, u8 igtk_key_len,
1179 		  const u8 *pn, u8 pn_len, const u8 *mac_addr, u8 mode, u8 index)
1180 {
1181 	int result = 0;
1182 	u8 t_key_len = igtk_key_len;
1183 	struct wid wid;
1184 	struct wilc_wpa_igtk *key_buf;
1185 
1186 	key_buf = kzalloc(sizeof(*key_buf) + t_key_len, GFP_KERNEL);
1187 	if (!key_buf)
1188 		return -ENOMEM;
1189 
1190 	key_buf->index = index;
1191 
1192 	memcpy(&key_buf->pn[0], pn, pn_len);
1193 	key_buf->pn_len = pn_len;
1194 
1195 	memcpy(&key_buf->key[0], igtk, igtk_key_len);
1196 	key_buf->key_len = t_key_len;
1197 
1198 	wid.id = WID_ADD_IGTK;
1199 	wid.type = WID_STR;
1200 	wid.size = sizeof(*key_buf) + t_key_len;
1201 	wid.val = (s8 *)key_buf;
1202 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1203 	kfree(key_buf);
1204 
1205 	return result;
1206 }
1207 
1208 int wilc_add_rx_gtk(struct wilc_vif *vif, const u8 *rx_gtk, u8 gtk_key_len,
1209 		    u8 index, u32 key_rsc_len, const u8 *key_rsc,
1210 		    const u8 *rx_mic, const u8 *tx_mic, u8 mode,
1211 		    u8 cipher_mode)
1212 {
1213 	int result = 0;
1214 	struct wilc_gtk_key *gtk_key;
1215 	int t_key_len = gtk_key_len + WILC_RX_MIC_KEY_LEN + WILC_TX_MIC_KEY_LEN;
1216 
1217 	gtk_key = kzalloc(sizeof(*gtk_key) + t_key_len, GFP_KERNEL);
1218 	if (!gtk_key)
1219 		return -ENOMEM;
1220 
1221 	/* fill bssid value only in station mode */
1222 	if (mode == WILC_STATION_MODE &&
1223 	    vif->hif_drv->hif_state == HOST_IF_CONNECTED)
1224 		memcpy(gtk_key->mac_addr, vif->hif_drv->assoc_bssid, ETH_ALEN);
1225 
1226 	if (key_rsc)
1227 		memcpy(gtk_key->rsc, key_rsc, 8);
1228 	gtk_key->index = index;
1229 	gtk_key->key_len = t_key_len;
1230 	memcpy(&gtk_key->key[0], rx_gtk, gtk_key_len);
1231 
1232 	if (rx_mic)
1233 		memcpy(&gtk_key->key[gtk_key_len], rx_mic, WILC_RX_MIC_KEY_LEN);
1234 
1235 	if (tx_mic)
1236 		memcpy(&gtk_key->key[gtk_key_len + WILC_RX_MIC_KEY_LEN],
1237 		       tx_mic, WILC_TX_MIC_KEY_LEN);
1238 
1239 	if (mode == WILC_AP_MODE) {
1240 		struct wid wid_list[2];
1241 
1242 		wid_list[0].id = WID_11I_MODE;
1243 		wid_list[0].type = WID_CHAR;
1244 		wid_list[0].size = sizeof(char);
1245 		wid_list[0].val = (s8 *)&cipher_mode;
1246 
1247 		wid_list[1].id = WID_ADD_RX_GTK;
1248 		wid_list[1].type = WID_STR;
1249 		wid_list[1].size = sizeof(*gtk_key) + t_key_len;
1250 		wid_list[1].val = (u8 *)gtk_key;
1251 
1252 		result = wilc_send_config_pkt(vif, WILC_SET_CFG, wid_list,
1253 					      ARRAY_SIZE(wid_list));
1254 	} else if (mode == WILC_STATION_MODE) {
1255 		struct wid wid;
1256 
1257 		wid.id = WID_ADD_RX_GTK;
1258 		wid.type = WID_STR;
1259 		wid.size = sizeof(*gtk_key) + t_key_len;
1260 		wid.val = (u8 *)gtk_key;
1261 		result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1262 	}
1263 
1264 	kfree(gtk_key);
1265 	return result;
1266 }
1267 
1268 int wilc_set_pmkid_info(struct wilc_vif *vif, struct wilc_pmkid_attr *pmkid)
1269 {
1270 	struct wid wid;
1271 
1272 	wid.id = WID_PMKID_INFO;
1273 	wid.type = WID_STR;
1274 	wid.size = (pmkid->numpmkid * sizeof(struct wilc_pmkid)) + 1;
1275 	wid.val = (u8 *)pmkid;
1276 
1277 	return wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1278 }
1279 
1280 int wilc_get_mac_address(struct wilc_vif *vif, u8 *mac_addr)
1281 {
1282 	int result;
1283 	struct wid wid;
1284 
1285 	wid.id = WID_MAC_ADDR;
1286 	wid.type = WID_STR;
1287 	wid.size = ETH_ALEN;
1288 	wid.val = mac_addr;
1289 
1290 	result = wilc_send_config_pkt(vif, WILC_GET_CFG, &wid, 1);
1291 	if (result)
1292 		netdev_err(vif->ndev, "Failed to get mac address\n");
1293 
1294 	return result;
1295 }
1296 
1297 int wilc_set_mac_address(struct wilc_vif *vif, const u8 *mac_addr)
1298 {
1299 	struct wid wid;
1300 	int result;
1301 
1302 	wid.id = WID_MAC_ADDR;
1303 	wid.type = WID_STR;
1304 	wid.size = ETH_ALEN;
1305 	wid.val = (u8 *)mac_addr;
1306 
1307 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1308 	if (result)
1309 		netdev_err(vif->ndev, "Failed to set mac address\n");
1310 
1311 	return result;
1312 }
1313 
1314 int wilc_set_join_req(struct wilc_vif *vif, u8 *bssid, const u8 *ies,
1315 		      size_t ies_len)
1316 {
1317 	int result;
1318 	struct host_if_drv *hif_drv = vif->hif_drv;
1319 	struct wilc_conn_info *conn_info = &hif_drv->conn_info;
1320 
1321 	if (bssid)
1322 		ether_addr_copy(conn_info->bssid, bssid);
1323 
1324 	if (ies) {
1325 		conn_info->req_ies_len = ies_len;
1326 		conn_info->req_ies = kmemdup(ies, ies_len, GFP_KERNEL);
1327 		if (!conn_info->req_ies)
1328 			return -ENOMEM;
1329 	}
1330 
1331 	result = wilc_send_connect_wid(vif);
1332 	if (result)
1333 		goto free_ies;
1334 
1335 	hif_drv->connect_timer_vif = vif;
1336 	mod_timer(&hif_drv->connect_timer,
1337 		  jiffies + msecs_to_jiffies(WILC_HIF_CONNECT_TIMEOUT_MS));
1338 
1339 	return 0;
1340 
1341 free_ies:
1342 	kfree(conn_info->req_ies);
1343 
1344 	return result;
1345 }
1346 
1347 int wilc_set_mac_chnl_num(struct wilc_vif *vif, u8 channel)
1348 {
1349 	struct wid wid;
1350 	int result;
1351 
1352 	wid.id = WID_CURRENT_CHANNEL;
1353 	wid.type = WID_CHAR;
1354 	wid.size = sizeof(char);
1355 	wid.val = &channel;
1356 
1357 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1358 	if (result)
1359 		netdev_err(vif->ndev, "Failed to set channel\n");
1360 
1361 	return result;
1362 }
1363 
1364 int wilc_set_operation_mode(struct wilc_vif *vif, int index, u8 mode,
1365 			    u8 ifc_id)
1366 {
1367 	struct wid wid;
1368 	int result;
1369 	struct wilc_drv_handler drv;
1370 
1371 	wid.id = WID_SET_OPERATION_MODE;
1372 	wid.type = WID_STR;
1373 	wid.size = sizeof(drv);
1374 	wid.val = (u8 *)&drv;
1375 
1376 	drv.handler = cpu_to_le32(index);
1377 	drv.mode = (ifc_id | (mode << 1));
1378 
1379 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1380 	if (result)
1381 		netdev_err(vif->ndev, "Failed to set driver handler\n");
1382 
1383 	return result;
1384 }
1385 
1386 s32 wilc_get_inactive_time(struct wilc_vif *vif, const u8 *mac, u32 *out_val)
1387 {
1388 	struct wid wid;
1389 	s32 result;
1390 
1391 	wid.id = WID_SET_STA_MAC_INACTIVE_TIME;
1392 	wid.type = WID_STR;
1393 	wid.size = ETH_ALEN;
1394 	wid.val = kzalloc(wid.size, GFP_KERNEL);
1395 	if (!wid.val)
1396 		return -ENOMEM;
1397 
1398 	ether_addr_copy(wid.val, mac);
1399 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1400 	kfree(wid.val);
1401 	if (result) {
1402 		netdev_err(vif->ndev, "Failed to set inactive mac\n");
1403 		return result;
1404 	}
1405 
1406 	wid.id = WID_GET_INACTIVE_TIME;
1407 	wid.type = WID_INT;
1408 	wid.val = (s8 *)out_val;
1409 	wid.size = sizeof(u32);
1410 	result = wilc_send_config_pkt(vif, WILC_GET_CFG, &wid, 1);
1411 	if (result)
1412 		netdev_err(vif->ndev, "Failed to get inactive time\n");
1413 
1414 	return result;
1415 }
1416 
1417 int wilc_get_rssi(struct wilc_vif *vif, s8 *rssi_level)
1418 {
1419 	struct wid wid;
1420 	int result;
1421 
1422 	if (!rssi_level) {
1423 		netdev_err(vif->ndev, "%s: RSSI level is NULL\n", __func__);
1424 		return -EFAULT;
1425 	}
1426 
1427 	wid.id = WID_RSSI;
1428 	wid.type = WID_CHAR;
1429 	wid.size = sizeof(char);
1430 	wid.val = rssi_level;
1431 	result = wilc_send_config_pkt(vif, WILC_GET_CFG, &wid, 1);
1432 	if (result)
1433 		netdev_err(vif->ndev, "Failed to get RSSI value\n");
1434 
1435 	return result;
1436 }
1437 
1438 static int wilc_get_stats_async(struct wilc_vif *vif, struct rf_info *stats)
1439 {
1440 	int result;
1441 	struct host_if_msg *msg;
1442 
1443 	msg = wilc_alloc_work(vif, handle_get_statistics, false);
1444 	if (IS_ERR(msg))
1445 		return PTR_ERR(msg);
1446 
1447 	msg->body.data = (char *)stats;
1448 
1449 	result = wilc_enqueue_work(msg);
1450 	if (result) {
1451 		netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__);
1452 		kfree(msg);
1453 		return result;
1454 	}
1455 
1456 	return result;
1457 }
1458 
1459 int wilc_hif_set_cfg(struct wilc_vif *vif, struct cfg_param_attr *param)
1460 {
1461 	struct wid wid_list[4];
1462 	int i = 0;
1463 
1464 	if (param->flag & WILC_CFG_PARAM_RETRY_SHORT) {
1465 		wid_list[i].id = WID_SHORT_RETRY_LIMIT;
1466 		wid_list[i].val = (s8 *)&param->short_retry_limit;
1467 		wid_list[i].type = WID_SHORT;
1468 		wid_list[i].size = sizeof(u16);
1469 		i++;
1470 	}
1471 	if (param->flag & WILC_CFG_PARAM_RETRY_LONG) {
1472 		wid_list[i].id = WID_LONG_RETRY_LIMIT;
1473 		wid_list[i].val = (s8 *)&param->long_retry_limit;
1474 		wid_list[i].type = WID_SHORT;
1475 		wid_list[i].size = sizeof(u16);
1476 		i++;
1477 	}
1478 	if (param->flag & WILC_CFG_PARAM_FRAG_THRESHOLD) {
1479 		wid_list[i].id = WID_FRAG_THRESHOLD;
1480 		wid_list[i].val = (s8 *)&param->frag_threshold;
1481 		wid_list[i].type = WID_SHORT;
1482 		wid_list[i].size = sizeof(u16);
1483 		i++;
1484 	}
1485 	if (param->flag & WILC_CFG_PARAM_RTS_THRESHOLD) {
1486 		wid_list[i].id = WID_RTS_THRESHOLD;
1487 		wid_list[i].val = (s8 *)&param->rts_threshold;
1488 		wid_list[i].type = WID_SHORT;
1489 		wid_list[i].size = sizeof(u16);
1490 		i++;
1491 	}
1492 
1493 	return wilc_send_config_pkt(vif, WILC_SET_CFG, wid_list, i);
1494 }
1495 
1496 static void get_periodic_rssi(struct timer_list *t)
1497 {
1498 	struct wilc_vif *vif = from_timer(vif, t, periodic_rssi);
1499 
1500 	if (!vif->hif_drv) {
1501 		netdev_err(vif->ndev, "%s: hif driver is NULL", __func__);
1502 		return;
1503 	}
1504 
1505 	if (vif->hif_drv->hif_state == HOST_IF_CONNECTED)
1506 		wilc_get_stats_async(vif, &vif->periodic_stat);
1507 
1508 	mod_timer(&vif->periodic_rssi, jiffies + msecs_to_jiffies(5000));
1509 }
1510 
1511 int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)
1512 {
1513 	struct host_if_drv *hif_drv;
1514 	struct wilc_vif *vif = netdev_priv(dev);
1515 
1516 	hif_drv  = kzalloc(sizeof(*hif_drv), GFP_KERNEL);
1517 	if (!hif_drv)
1518 		return -ENOMEM;
1519 
1520 	*hif_drv_handler = hif_drv;
1521 
1522 	vif->hif_drv = hif_drv;
1523 
1524 	timer_setup(&vif->periodic_rssi, get_periodic_rssi, 0);
1525 	mod_timer(&vif->periodic_rssi, jiffies + msecs_to_jiffies(5000));
1526 
1527 	timer_setup(&hif_drv->scan_timer, timer_scan_cb, 0);
1528 	timer_setup(&hif_drv->connect_timer, timer_connect_cb, 0);
1529 	timer_setup(&hif_drv->remain_on_ch_timer, listen_timer_cb, 0);
1530 
1531 	hif_drv->hif_state = HOST_IF_IDLE;
1532 
1533 	hif_drv->p2p_timeout = 0;
1534 
1535 	return 0;
1536 }
1537 
1538 int wilc_deinit(struct wilc_vif *vif)
1539 {
1540 	int result = 0;
1541 	struct host_if_drv *hif_drv = vif->hif_drv;
1542 
1543 	if (!hif_drv) {
1544 		netdev_err(vif->ndev, "%s: hif driver is NULL", __func__);
1545 		return -EFAULT;
1546 	}
1547 
1548 	mutex_lock(&vif->wilc->deinit_lock);
1549 
1550 	timer_shutdown_sync(&hif_drv->scan_timer);
1551 	timer_shutdown_sync(&hif_drv->connect_timer);
1552 	del_timer_sync(&vif->periodic_rssi);
1553 	timer_shutdown_sync(&hif_drv->remain_on_ch_timer);
1554 
1555 	if (hif_drv->usr_scan_req.scan_result) {
1556 		hif_drv->usr_scan_req.scan_result(SCAN_EVENT_ABORTED, NULL,
1557 						  hif_drv->usr_scan_req.priv);
1558 		hif_drv->usr_scan_req.scan_result = NULL;
1559 	}
1560 
1561 	hif_drv->hif_state = HOST_IF_IDLE;
1562 
1563 	kfree(hif_drv);
1564 	vif->hif_drv = NULL;
1565 	mutex_unlock(&vif->wilc->deinit_lock);
1566 	return result;
1567 }
1568 
1569 void wilc_network_info_received(struct wilc *wilc, u8 *buffer, u32 length)
1570 {
1571 	struct host_if_drv *hif_drv;
1572 	struct host_if_msg *msg;
1573 	struct wilc_vif *vif;
1574 	int srcu_idx;
1575 	int result;
1576 	int id;
1577 
1578 	id = get_unaligned_le32(&buffer[length - 4]);
1579 	srcu_idx = srcu_read_lock(&wilc->srcu);
1580 	vif = wilc_get_vif_from_idx(wilc, id);
1581 	if (!vif)
1582 		goto out;
1583 
1584 	hif_drv = vif->hif_drv;
1585 	if (!hif_drv) {
1586 		netdev_err(vif->ndev, "driver not init[%p]\n", hif_drv);
1587 		goto out;
1588 	}
1589 
1590 	msg = wilc_alloc_work(vif, handle_rcvd_ntwrk_info, false);
1591 	if (IS_ERR(msg))
1592 		goto out;
1593 
1594 	msg->body.net_info.frame_len = get_unaligned_le16(&buffer[6]) - 1;
1595 	msg->body.net_info.rssi = buffer[8];
1596 	msg->body.net_info.mgmt = kmemdup(&buffer[9],
1597 					  msg->body.net_info.frame_len,
1598 					  GFP_KERNEL);
1599 	if (!msg->body.net_info.mgmt) {
1600 		kfree(msg);
1601 		goto out;
1602 	}
1603 
1604 	result = wilc_enqueue_work(msg);
1605 	if (result) {
1606 		netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__);
1607 		kfree(msg->body.net_info.mgmt);
1608 		kfree(msg);
1609 	}
1610 out:
1611 	srcu_read_unlock(&wilc->srcu, srcu_idx);
1612 }
1613 
1614 void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *buffer, u32 length)
1615 {
1616 	struct host_if_drv *hif_drv;
1617 	struct host_if_msg *msg;
1618 	struct wilc_vif *vif;
1619 	int srcu_idx;
1620 	int result;
1621 	int id;
1622 
1623 	mutex_lock(&wilc->deinit_lock);
1624 
1625 	id = get_unaligned_le32(&buffer[length - 4]);
1626 	srcu_idx = srcu_read_lock(&wilc->srcu);
1627 	vif = wilc_get_vif_from_idx(wilc, id);
1628 	if (!vif)
1629 		goto out;
1630 
1631 	hif_drv = vif->hif_drv;
1632 
1633 	if (!hif_drv) {
1634 		goto out;
1635 	}
1636 
1637 	if (!hif_drv->conn_info.conn_result) {
1638 		netdev_err(vif->ndev, "%s: conn_result is NULL\n", __func__);
1639 		goto out;
1640 	}
1641 
1642 	msg = wilc_alloc_work(vif, handle_rcvd_gnrl_async_info, false);
1643 	if (IS_ERR(msg))
1644 		goto out;
1645 
1646 	msg->body.mac_info.status = buffer[7];
1647 	result = wilc_enqueue_work(msg);
1648 	if (result) {
1649 		netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__);
1650 		kfree(msg);
1651 	}
1652 out:
1653 	srcu_read_unlock(&wilc->srcu, srcu_idx);
1654 	mutex_unlock(&wilc->deinit_lock);
1655 }
1656 
1657 void wilc_scan_complete_received(struct wilc *wilc, u8 *buffer, u32 length)
1658 {
1659 	struct host_if_drv *hif_drv;
1660 	struct wilc_vif *vif;
1661 	int srcu_idx;
1662 	int result;
1663 	int id;
1664 
1665 	id = get_unaligned_le32(&buffer[length - 4]);
1666 	srcu_idx = srcu_read_lock(&wilc->srcu);
1667 	vif = wilc_get_vif_from_idx(wilc, id);
1668 	if (!vif)
1669 		goto out;
1670 
1671 	hif_drv = vif->hif_drv;
1672 	if (!hif_drv) {
1673 		goto out;
1674 	}
1675 
1676 	if (hif_drv->usr_scan_req.scan_result) {
1677 		struct host_if_msg *msg;
1678 
1679 		msg = wilc_alloc_work(vif, handle_scan_complete, false);
1680 		if (IS_ERR(msg))
1681 			goto out;
1682 
1683 		result = wilc_enqueue_work(msg);
1684 		if (result) {
1685 			netdev_err(vif->ndev, "%s: enqueue work failed\n",
1686 				   __func__);
1687 			kfree(msg);
1688 		}
1689 	}
1690 out:
1691 	srcu_read_unlock(&wilc->srcu, srcu_idx);
1692 }
1693 
1694 int wilc_remain_on_channel(struct wilc_vif *vif, u64 cookie, u16 chan,
1695 			   void (*expired)(struct wilc_vif *, u64))
1696 {
1697 	struct wilc_remain_ch roc;
1698 	int result;
1699 
1700 	roc.ch = chan;
1701 	roc.expired = expired;
1702 	roc.vif = vif;
1703 	roc.cookie = cookie;
1704 	result = handle_remain_on_chan(vif, &roc);
1705 	if (result)
1706 		netdev_err(vif->ndev, "%s: failed to set remain on channel\n",
1707 			   __func__);
1708 
1709 	return result;
1710 }
1711 
1712 int wilc_listen_state_expired(struct wilc_vif *vif, u64 cookie)
1713 {
1714 	if (!vif->hif_drv) {
1715 		netdev_err(vif->ndev, "%s: hif driver is NULL", __func__);
1716 		return -EFAULT;
1717 	}
1718 
1719 	del_timer(&vif->hif_drv->remain_on_ch_timer);
1720 
1721 	return wilc_handle_roc_expired(vif, cookie);
1722 }
1723 
1724 void wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg)
1725 {
1726 	struct wid wid;
1727 	int result;
1728 	struct wilc_reg_frame reg_frame;
1729 
1730 	wid.id = WID_REGISTER_FRAME;
1731 	wid.type = WID_STR;
1732 	wid.size = sizeof(reg_frame);
1733 	wid.val = (u8 *)&reg_frame;
1734 
1735 	memset(&reg_frame, 0x0, sizeof(reg_frame));
1736 
1737 	if (reg)
1738 		reg_frame.reg = 1;
1739 
1740 	switch (frame_type) {
1741 	case IEEE80211_STYPE_ACTION:
1742 		reg_frame.reg_id = WILC_FW_ACTION_FRM_IDX;
1743 		break;
1744 
1745 	case IEEE80211_STYPE_PROBE_REQ:
1746 		reg_frame.reg_id = WILC_FW_PROBE_REQ_IDX;
1747 		break;
1748 
1749         case IEEE80211_STYPE_AUTH:
1750                 reg_frame.reg_id = WILC_FW_AUTH_REQ_IDX;
1751                 break;
1752 
1753 	default:
1754 		break;
1755 	}
1756 	reg_frame.frame_type = cpu_to_le16(frame_type);
1757 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1758 	if (result)
1759 		netdev_err(vif->ndev, "Failed to frame register\n");
1760 }
1761 
1762 int wilc_add_beacon(struct wilc_vif *vif, u32 interval, u32 dtim_period,
1763 		    struct cfg80211_beacon_data *params)
1764 {
1765 	struct wid wid;
1766 	int result;
1767 	u8 *cur_byte;
1768 
1769 	wid.id = WID_ADD_BEACON;
1770 	wid.type = WID_BIN;
1771 	wid.size = params->head_len + params->tail_len + 16;
1772 	wid.val = kzalloc(wid.size, GFP_KERNEL);
1773 	if (!wid.val)
1774 		return -ENOMEM;
1775 
1776 	cur_byte = wid.val;
1777 	put_unaligned_le32(interval, cur_byte);
1778 	cur_byte += 4;
1779 	put_unaligned_le32(dtim_period, cur_byte);
1780 	cur_byte += 4;
1781 	put_unaligned_le32(params->head_len, cur_byte);
1782 	cur_byte += 4;
1783 
1784 	if (params->head_len > 0)
1785 		memcpy(cur_byte, params->head, params->head_len);
1786 	cur_byte += params->head_len;
1787 
1788 	put_unaligned_le32(params->tail_len, cur_byte);
1789 	cur_byte += 4;
1790 
1791 	if (params->tail_len > 0)
1792 		memcpy(cur_byte, params->tail, params->tail_len);
1793 
1794 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1795 	if (result)
1796 		netdev_err(vif->ndev, "Failed to send add beacon\n");
1797 
1798 	kfree(wid.val);
1799 
1800 	return result;
1801 }
1802 
1803 int wilc_del_beacon(struct wilc_vif *vif)
1804 {
1805 	int result;
1806 	struct wid wid;
1807 	u8 del_beacon = 0;
1808 
1809 	wid.id = WID_DEL_BEACON;
1810 	wid.type = WID_CHAR;
1811 	wid.size = sizeof(char);
1812 	wid.val = &del_beacon;
1813 
1814 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1815 	if (result)
1816 		netdev_err(vif->ndev, "Failed to send delete beacon\n");
1817 
1818 	return result;
1819 }
1820 
1821 int wilc_add_station(struct wilc_vif *vif, const u8 *mac,
1822 		     struct station_parameters *params)
1823 {
1824 	struct wid wid;
1825 	int result;
1826 	u8 *cur_byte;
1827 
1828 	wid.id = WID_ADD_STA;
1829 	wid.type = WID_BIN;
1830 	wid.size = WILC_ADD_STA_LENGTH +
1831 		   params->link_sta_params.supported_rates_len;
1832 	wid.val = kmalloc(wid.size, GFP_KERNEL);
1833 	if (!wid.val)
1834 		return -ENOMEM;
1835 
1836 	cur_byte = wid.val;
1837 	wilc_hif_pack_sta_param(cur_byte, mac, params);
1838 
1839 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1840 	if (result != 0)
1841 		netdev_err(vif->ndev, "Failed to send add station\n");
1842 
1843 	kfree(wid.val);
1844 
1845 	return result;
1846 }
1847 
1848 int wilc_del_station(struct wilc_vif *vif, const u8 *mac_addr)
1849 {
1850 	struct wid wid;
1851 	int result;
1852 
1853 	wid.id = WID_REMOVE_STA;
1854 	wid.type = WID_BIN;
1855 	wid.size = ETH_ALEN;
1856 	wid.val = kzalloc(wid.size, GFP_KERNEL);
1857 	if (!wid.val)
1858 		return -ENOMEM;
1859 
1860 	if (!mac_addr)
1861 		eth_broadcast_addr(wid.val);
1862 	else
1863 		ether_addr_copy(wid.val, mac_addr);
1864 
1865 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1866 	if (result)
1867 		netdev_err(vif->ndev, "Failed to del station\n");
1868 
1869 	kfree(wid.val);
1870 
1871 	return result;
1872 }
1873 
1874 int wilc_del_allstation(struct wilc_vif *vif, u8 mac_addr[][ETH_ALEN])
1875 {
1876 	struct wid wid;
1877 	int result;
1878 	int i;
1879 	u8 assoc_sta = 0;
1880 	struct wilc_del_all_sta del_sta;
1881 
1882 	memset(&del_sta, 0x0, sizeof(del_sta));
1883 	for (i = 0; i < WILC_MAX_NUM_STA; i++) {
1884 		if (!is_zero_ether_addr(mac_addr[i])) {
1885 			assoc_sta++;
1886 			ether_addr_copy(del_sta.mac[i], mac_addr[i]);
1887 		}
1888 	}
1889 
1890 	if (!assoc_sta)
1891 		return 0;
1892 
1893 	del_sta.assoc_sta = assoc_sta;
1894 
1895 	wid.id = WID_DEL_ALL_STA;
1896 	wid.type = WID_STR;
1897 	wid.size = (assoc_sta * ETH_ALEN) + 1;
1898 	wid.val = (u8 *)&del_sta;
1899 
1900 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1901 	if (result)
1902 		netdev_err(vif->ndev, "Failed to send delete all station\n");
1903 
1904 	return result;
1905 }
1906 
1907 int wilc_edit_station(struct wilc_vif *vif, const u8 *mac,
1908 		      struct station_parameters *params)
1909 {
1910 	struct wid wid;
1911 	int result;
1912 	u8 *cur_byte;
1913 
1914 	wid.id = WID_EDIT_STA;
1915 	wid.type = WID_BIN;
1916 	wid.size = WILC_ADD_STA_LENGTH +
1917 		   params->link_sta_params.supported_rates_len;
1918 	wid.val = kmalloc(wid.size, GFP_KERNEL);
1919 	if (!wid.val)
1920 		return -ENOMEM;
1921 
1922 	cur_byte = wid.val;
1923 	wilc_hif_pack_sta_param(cur_byte, mac, params);
1924 
1925 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1926 	if (result)
1927 		netdev_err(vif->ndev, "Failed to send edit station\n");
1928 
1929 	kfree(wid.val);
1930 	return result;
1931 }
1932 
1933 int wilc_set_power_mgmt(struct wilc_vif *vif, bool enabled, u32 timeout)
1934 {
1935 	struct wilc *wilc = vif->wilc;
1936 	struct wid wid;
1937 	int result;
1938 	s8 power_mode;
1939 
1940 	if (enabled)
1941 		power_mode = WILC_FW_MIN_FAST_PS;
1942 	else
1943 		power_mode = WILC_FW_NO_POWERSAVE;
1944 
1945 	wid.id = WID_POWER_MANAGEMENT;
1946 	wid.val = &power_mode;
1947 	wid.size = sizeof(char);
1948 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1949 	if (result)
1950 		netdev_err(vif->ndev, "Failed to send power management\n");
1951 	else
1952 		wilc->power_save_mode = enabled;
1953 
1954 	return result;
1955 }
1956 
1957 int wilc_setup_multicast_filter(struct wilc_vif *vif, u32 enabled, u32 count,
1958 				u8 *mc_list)
1959 {
1960 	int result;
1961 	struct host_if_msg *msg;
1962 
1963 	msg = wilc_alloc_work(vif, handle_set_mcast_filter, false);
1964 	if (IS_ERR(msg))
1965 		return PTR_ERR(msg);
1966 
1967 	msg->body.mc_info.enabled = enabled;
1968 	msg->body.mc_info.cnt = count;
1969 	msg->body.mc_info.mc_list = mc_list;
1970 
1971 	result = wilc_enqueue_work(msg);
1972 	if (result) {
1973 		netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__);
1974 		kfree(msg);
1975 	}
1976 	return result;
1977 }
1978 
1979 int wilc_set_tx_power(struct wilc_vif *vif, u8 tx_power)
1980 {
1981 	struct wid wid;
1982 
1983 	wid.id = WID_TX_POWER;
1984 	wid.type = WID_CHAR;
1985 	wid.val = &tx_power;
1986 	wid.size = sizeof(char);
1987 
1988 	return wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1989 }
1990 
1991 int wilc_get_tx_power(struct wilc_vif *vif, u8 *tx_power)
1992 {
1993 	struct wid wid;
1994 
1995 	wid.id = WID_TX_POWER;
1996 	wid.type = WID_CHAR;
1997 	wid.val = tx_power;
1998 	wid.size = sizeof(char);
1999 
2000 	return wilc_send_config_pkt(vif, WILC_GET_CFG, &wid, 1);
2001 }
2002 
2003 int wilc_set_default_mgmt_key_index(struct wilc_vif *vif, u8 index)
2004 {
2005         struct wid wid;
2006         int result;
2007 
2008         wid.id = WID_DEFAULT_MGMT_KEY_ID;
2009         wid.type = WID_CHAR;
2010         wid.size = sizeof(char);
2011         wid.val = &index;
2012         result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
2013         if (result)
2014                 netdev_err(vif->ndev,
2015                            "Failed to send default mgmt key index\n");
2016 
2017         return result;
2018 }
2019