xref: /linux/drivers/net/wireless/microchip/wilc1000/hif.c (revision 2baf8ba532a12579a090d79d4522b9ec324073d5)
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 	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
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->arg);
148 		scan_req->scan_result = NULL;
149 	}
150 
151 	return result;
152 }
153 
154 int wilc_scan(struct wilc_vif *vif, u8 scan_source, u8 scan_type,
155 	      u8 *ch_freq_list, u8 ch_list_len,
156 	      void (*scan_result_fn)(enum scan_event,
157 				     struct wilc_rcvd_net_info *, void *),
158 	      void *user_arg, struct cfg80211_scan_request *request)
159 {
160 	int result = 0;
161 	struct wid wid_list[WILC_SCAN_WID_LIST_SIZE];
162 	u32 index = 0;
163 	u32 i, scan_timeout;
164 	u8 *buffer;
165 	u8 valuesize = 0;
166 	u8 *search_ssid_vals = NULL;
167 	struct host_if_drv *hif_drv = vif->hif_drv;
168 
169 	if (hif_drv->hif_state >= HOST_IF_SCANNING &&
170 	    hif_drv->hif_state < HOST_IF_CONNECTED) {
171 		netdev_err(vif->ndev, "Already scan\n");
172 		result = -EBUSY;
173 		goto error;
174 	}
175 
176 	if (vif->connecting) {
177 		netdev_err(vif->ndev, "Don't do obss scan\n");
178 		result = -EBUSY;
179 		goto error;
180 	}
181 
182 	hif_drv->usr_scan_req.ch_cnt = 0;
183 
184 	if (request->n_ssids) {
185 		for (i = 0; i < request->n_ssids; i++)
186 			valuesize += ((request->ssids[i].ssid_len) + 1);
187 		search_ssid_vals = kmalloc(valuesize + 1, GFP_KERNEL);
188 		if (search_ssid_vals) {
189 			wid_list[index].id = WID_SSID_PROBE_REQ;
190 			wid_list[index].type = WID_STR;
191 			wid_list[index].val = search_ssid_vals;
192 			buffer = wid_list[index].val;
193 
194 			*buffer++ = request->n_ssids;
195 
196 			for (i = 0; i < request->n_ssids; i++) {
197 				*buffer++ = request->ssids[i].ssid_len;
198 				memcpy(buffer, request->ssids[i].ssid,
199 				       request->ssids[i].ssid_len);
200 				buffer += request->ssids[i].ssid_len;
201 			}
202 			wid_list[index].size = (s32)(valuesize + 1);
203 			index++;
204 		}
205 	}
206 
207 	wid_list[index].id = WID_INFO_ELEMENT_PROBE;
208 	wid_list[index].type = WID_BIN_DATA;
209 	wid_list[index].val = (s8 *)request->ie;
210 	wid_list[index].size = request->ie_len;
211 	index++;
212 
213 	wid_list[index].id = WID_SCAN_TYPE;
214 	wid_list[index].type = WID_CHAR;
215 	wid_list[index].size = sizeof(char);
216 	wid_list[index].val = (s8 *)&scan_type;
217 	index++;
218 
219 	if (scan_type == WILC_FW_PASSIVE_SCAN && request->duration) {
220 		wid_list[index].id = WID_PASSIVE_SCAN_TIME;
221 		wid_list[index].type = WID_SHORT;
222 		wid_list[index].size = sizeof(u16);
223 		wid_list[index].val = (s8 *)&request->duration;
224 		index++;
225 
226 		scan_timeout = (request->duration * ch_list_len) + 500;
227 	} else {
228 		scan_timeout = WILC_HIF_SCAN_TIMEOUT_MS;
229 	}
230 
231 	wid_list[index].id = WID_SCAN_CHANNEL_LIST;
232 	wid_list[index].type = WID_BIN_DATA;
233 
234 	if (ch_freq_list && ch_list_len > 0) {
235 		for (i = 0; i < ch_list_len; i++) {
236 			if (ch_freq_list[i] > 0)
237 				ch_freq_list[i] -= 1;
238 		}
239 	}
240 
241 	wid_list[index].val = ch_freq_list;
242 	wid_list[index].size = ch_list_len;
243 	index++;
244 
245 	wid_list[index].id = WID_START_SCAN_REQ;
246 	wid_list[index].type = WID_CHAR;
247 	wid_list[index].size = sizeof(char);
248 	wid_list[index].val = (s8 *)&scan_source;
249 	index++;
250 
251 	hif_drv->usr_scan_req.scan_result = scan_result_fn;
252 	hif_drv->usr_scan_req.arg = user_arg;
253 
254 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, wid_list, index);
255 	if (result) {
256 		netdev_err(vif->ndev, "Failed to send scan parameters\n");
257 		goto error;
258 	}
259 
260 	hif_drv->scan_timer_vif = vif;
261 	mod_timer(&hif_drv->scan_timer,
262 		  jiffies + msecs_to_jiffies(scan_timeout));
263 
264 error:
265 
266 	kfree(search_ssid_vals);
267 
268 	return result;
269 }
270 
271 static int wilc_send_connect_wid(struct wilc_vif *vif)
272 {
273 	int result = 0;
274 	struct wid wid_list[5];
275 	u32 wid_cnt = 0;
276 	struct host_if_drv *hif_drv = vif->hif_drv;
277 	struct wilc_conn_info *conn_attr = &hif_drv->conn_info;
278 	struct wilc_join_bss_param *bss_param = conn_attr->param;
279 
280 
281         wid_list[wid_cnt].id = WID_SET_MFP;
282         wid_list[wid_cnt].type = WID_CHAR;
283         wid_list[wid_cnt].size = sizeof(char);
284         wid_list[wid_cnt].val = (s8 *)&conn_attr->mfp_type;
285         wid_cnt++;
286 
287 	wid_list[wid_cnt].id = WID_INFO_ELEMENT_ASSOCIATE;
288 	wid_list[wid_cnt].type = WID_BIN_DATA;
289 	wid_list[wid_cnt].val = conn_attr->req_ies;
290 	wid_list[wid_cnt].size = conn_attr->req_ies_len;
291 	wid_cnt++;
292 
293 	wid_list[wid_cnt].id = WID_11I_MODE;
294 	wid_list[wid_cnt].type = WID_CHAR;
295 	wid_list[wid_cnt].size = sizeof(char);
296 	wid_list[wid_cnt].val = (s8 *)&conn_attr->security;
297 	wid_cnt++;
298 
299 	wid_list[wid_cnt].id = WID_AUTH_TYPE;
300 	wid_list[wid_cnt].type = WID_CHAR;
301 	wid_list[wid_cnt].size = sizeof(char);
302 	wid_list[wid_cnt].val = (s8 *)&conn_attr->auth_type;
303 	wid_cnt++;
304 
305 	wid_list[wid_cnt].id = WID_JOIN_REQ_EXTENDED;
306 	wid_list[wid_cnt].type = WID_STR;
307 	wid_list[wid_cnt].size = sizeof(*bss_param);
308 	wid_list[wid_cnt].val = (u8 *)bss_param;
309 	wid_cnt++;
310 
311 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, wid_list, wid_cnt);
312 	if (result) {
313 		netdev_err(vif->ndev, "failed to send config packet\n");
314 		goto error;
315 	} else {
316                 if (conn_attr->auth_type == WILC_FW_AUTH_SAE)
317                         hif_drv->hif_state = HOST_IF_EXTERNAL_AUTH;
318                 else
319                         hif_drv->hif_state = HOST_IF_WAITING_CONN_RESP;
320 	}
321 
322 	return 0;
323 
324 error:
325 
326 	kfree(conn_attr->req_ies);
327 	conn_attr->req_ies = NULL;
328 
329 	return result;
330 }
331 
332 static void handle_connect_timeout(struct work_struct *work)
333 {
334 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
335 	struct wilc_vif *vif = msg->vif;
336 	int result;
337 	struct wid wid;
338 	u16 dummy_reason_code = 0;
339 	struct host_if_drv *hif_drv = vif->hif_drv;
340 
341 	if (!hif_drv) {
342 		netdev_err(vif->ndev, "%s: hif driver is NULL\n", __func__);
343 		goto out;
344 	}
345 
346 	hif_drv->hif_state = HOST_IF_IDLE;
347 
348 	if (hif_drv->conn_info.conn_result) {
349 		hif_drv->conn_info.conn_result(CONN_DISCONN_EVENT_CONN_RESP,
350 					       WILC_MAC_STATUS_DISCONNECTED,
351 					       hif_drv->conn_info.arg);
352 
353 	} else {
354 		netdev_err(vif->ndev, "%s: conn_result is NULL\n", __func__);
355 	}
356 
357 	wid.id = WID_DISCONNECT;
358 	wid.type = WID_CHAR;
359 	wid.val = (s8 *)&dummy_reason_code;
360 	wid.size = sizeof(char);
361 
362 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
363 	if (result)
364 		netdev_err(vif->ndev, "Failed to send disconnect\n");
365 
366 	hif_drv->conn_info.req_ies_len = 0;
367 	kfree(hif_drv->conn_info.req_ies);
368 	hif_drv->conn_info.req_ies = NULL;
369 
370 out:
371 	kfree(msg);
372 }
373 
374 void *wilc_parse_join_bss_param(struct cfg80211_bss *bss,
375 				struct cfg80211_crypto_settings *crypto)
376 {
377 	struct wilc_join_bss_param *param;
378 	struct ieee80211_p2p_noa_attr noa_attr;
379 	u8 rates_len = 0;
380 	const u8 *tim_elm, *ssid_elm, *rates_ie, *supp_rates_ie;
381 	const u8 *ht_ie, *wpa_ie, *wmm_ie, *rsn_ie;
382 	int ret;
383 	const struct cfg80211_bss_ies *ies = rcu_dereference(bss->ies);
384 
385 	param = kzalloc(sizeof(*param), GFP_KERNEL);
386 	if (!param)
387 		return NULL;
388 
389 	param->beacon_period = cpu_to_le16(bss->beacon_interval);
390 	param->cap_info = cpu_to_le16(bss->capability);
391 	param->bss_type = WILC_FW_BSS_TYPE_INFRA;
392 	param->ch = ieee80211_frequency_to_channel(bss->channel->center_freq);
393 	ether_addr_copy(param->bssid, bss->bssid);
394 
395 	ssid_elm = cfg80211_find_ie(WLAN_EID_SSID, ies->data, ies->len);
396 	if (ssid_elm) {
397 		if (ssid_elm[1] <= IEEE80211_MAX_SSID_LEN)
398 			memcpy(param->ssid, ssid_elm + 2, ssid_elm[1]);
399 	}
400 
401 	tim_elm = cfg80211_find_ie(WLAN_EID_TIM, ies->data, ies->len);
402 	if (tim_elm && tim_elm[1] >= 2)
403 		param->dtim_period = tim_elm[3];
404 
405 	memset(param->p_suites, 0xFF, 3);
406 	memset(param->akm_suites, 0xFF, 3);
407 
408 	rates_ie = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies->data, ies->len);
409 	if (rates_ie) {
410 		rates_len = rates_ie[1];
411 		if (rates_len > WILC_MAX_RATES_SUPPORTED)
412 			rates_len = WILC_MAX_RATES_SUPPORTED;
413 		param->supp_rates[0] = rates_len;
414 		memcpy(&param->supp_rates[1], rates_ie + 2, rates_len);
415 	}
416 
417 	if (rates_len < WILC_MAX_RATES_SUPPORTED) {
418 		supp_rates_ie = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES,
419 						 ies->data, ies->len);
420 		if (supp_rates_ie) {
421 			u8 ext_rates = supp_rates_ie[1];
422 
423 			if (ext_rates > (WILC_MAX_RATES_SUPPORTED - rates_len))
424 				param->supp_rates[0] = WILC_MAX_RATES_SUPPORTED;
425 			else
426 				param->supp_rates[0] += ext_rates;
427 
428 			memcpy(&param->supp_rates[rates_len + 1],
429 			       supp_rates_ie + 2,
430 			       (param->supp_rates[0] - rates_len));
431 		}
432 	}
433 
434 	ht_ie = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies->data, ies->len);
435 	if (ht_ie)
436 		param->ht_capable = true;
437 
438 	ret = cfg80211_get_p2p_attr(ies->data, ies->len,
439 				    IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
440 				    (u8 *)&noa_attr, sizeof(noa_attr));
441 	if (ret > 0) {
442 		param->tsf_lo = cpu_to_le32(ies->tsf);
443 		param->noa_enabled = 1;
444 		param->idx = noa_attr.index;
445 		if (noa_attr.oppps_ctwindow & IEEE80211_P2P_OPPPS_ENABLE_BIT) {
446 			param->opp_enabled = 1;
447 			param->opp_en.ct_window = noa_attr.oppps_ctwindow;
448 			param->opp_en.cnt = noa_attr.desc[0].count;
449 			param->opp_en.duration = noa_attr.desc[0].duration;
450 			param->opp_en.interval = noa_attr.desc[0].interval;
451 			param->opp_en.start_time = noa_attr.desc[0].start_time;
452 		} else {
453 			param->opp_enabled = 0;
454 			param->opp_dis.cnt = noa_attr.desc[0].count;
455 			param->opp_dis.duration = noa_attr.desc[0].duration;
456 			param->opp_dis.interval = noa_attr.desc[0].interval;
457 			param->opp_dis.start_time = noa_attr.desc[0].start_time;
458 		}
459 	}
460 	wmm_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
461 					 WLAN_OUI_TYPE_MICROSOFT_WMM,
462 					 ies->data, ies->len);
463 	if (wmm_ie) {
464 		struct ieee80211_wmm_param_ie *ie;
465 
466 		ie = (struct ieee80211_wmm_param_ie *)wmm_ie;
467 		if ((ie->oui_subtype == 0 || ie->oui_subtype == 1) &&
468 		    ie->version == 1) {
469 			param->wmm_cap = true;
470 			if (ie->qos_info & BIT(7))
471 				param->uapsd_cap = true;
472 		}
473 	}
474 
475 	wpa_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
476 					 WLAN_OUI_TYPE_MICROSOFT_WPA,
477 					 ies->data, ies->len);
478 	if (wpa_ie) {
479 		param->mode_802_11i = 1;
480 		param->rsn_found = true;
481 	}
482 
483 	rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, ies->data, ies->len);
484 	if (rsn_ie) {
485 		int offset = 8;
486 
487 		param->mode_802_11i = 2;
488 		param->rsn_found = true;
489 		/* extract RSN capabilities */
490 		offset += (rsn_ie[offset] * 4) + 2;
491 		offset += (rsn_ie[offset] * 4) + 2;
492 		memcpy(param->rsn_cap, &rsn_ie[offset], 2);
493 	}
494 
495 	if (param->rsn_found) {
496 		int i;
497 
498 		param->rsn_grp_policy = crypto->cipher_group & 0xFF;
499 		for (i = 0; i < crypto->n_ciphers_pairwise && i < 3; i++)
500 			param->p_suites[i] = crypto->ciphers_pairwise[i] & 0xFF;
501 
502 		for (i = 0; i < crypto->n_akm_suites && i < 3; i++)
503 			param->akm_suites[i] = crypto->akm_suites[i] & 0xFF;
504 	}
505 
506 	return (void *)param;
507 }
508 
509 static void handle_rcvd_ntwrk_info(struct work_struct *work)
510 {
511 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
512 	struct wilc_rcvd_net_info *rcvd_info = &msg->body.net_info;
513 	struct wilc_user_scan_req *scan_req = &msg->vif->hif_drv->usr_scan_req;
514 	const u8 *ch_elm;
515 	u8 *ies;
516 	int ies_len;
517 	size_t offset;
518 
519 	if (ieee80211_is_probe_resp(rcvd_info->mgmt->frame_control))
520 		offset = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
521 	else if (ieee80211_is_beacon(rcvd_info->mgmt->frame_control))
522 		offset = offsetof(struct ieee80211_mgmt, u.beacon.variable);
523 	else
524 		goto done;
525 
526 	ies = rcvd_info->mgmt->u.beacon.variable;
527 	ies_len = rcvd_info->frame_len - offset;
528 	if (ies_len <= 0)
529 		goto done;
530 
531 	ch_elm = cfg80211_find_ie(WLAN_EID_DS_PARAMS, ies, ies_len);
532 	if (ch_elm && ch_elm[1] > 0)
533 		rcvd_info->ch = ch_elm[2];
534 
535 	if (scan_req->scan_result)
536 		scan_req->scan_result(SCAN_EVENT_NETWORK_FOUND, rcvd_info,
537 				      scan_req->arg);
538 
539 done:
540 	kfree(rcvd_info->mgmt);
541 	kfree(msg);
542 }
543 
544 static void host_int_get_assoc_res_info(struct wilc_vif *vif,
545 					u8 *assoc_resp_info,
546 					u32 max_assoc_resp_info_len,
547 					u32 *rcvd_assoc_resp_info_len)
548 {
549 	int result;
550 	struct wid wid;
551 
552 	wid.id = WID_ASSOC_RES_INFO;
553 	wid.type = WID_STR;
554 	wid.val = assoc_resp_info;
555 	wid.size = max_assoc_resp_info_len;
556 
557 	result = wilc_send_config_pkt(vif, WILC_GET_CFG, &wid, 1);
558 	if (result) {
559 		*rcvd_assoc_resp_info_len = 0;
560 		netdev_err(vif->ndev, "Failed to send association response\n");
561 		return;
562 	}
563 
564 	*rcvd_assoc_resp_info_len = wid.size;
565 }
566 
567 static s32 wilc_parse_assoc_resp_info(u8 *buffer, u32 buffer_len,
568 				      struct wilc_conn_info *ret_conn_info)
569 {
570 	u8 *ies;
571 	u16 ies_len;
572 	struct wilc_assoc_resp *res = (struct wilc_assoc_resp *)buffer;
573 
574 	ret_conn_info->status = le16_to_cpu(res->status_code);
575 	if (ret_conn_info->status == WLAN_STATUS_SUCCESS) {
576 		ies = &buffer[sizeof(*res)];
577 		ies_len = buffer_len - sizeof(*res);
578 
579 		ret_conn_info->resp_ies = kmemdup(ies, ies_len, GFP_KERNEL);
580 		if (!ret_conn_info->resp_ies)
581 			return -ENOMEM;
582 
583 		ret_conn_info->resp_ies_len = ies_len;
584 	}
585 
586 	return 0;
587 }
588 
589 static inline void host_int_parse_assoc_resp_info(struct wilc_vif *vif,
590 						  u8 mac_status)
591 {
592 	struct host_if_drv *hif_drv = vif->hif_drv;
593 	struct wilc_conn_info *conn_info = &hif_drv->conn_info;
594 
595 	if (mac_status == WILC_MAC_STATUS_CONNECTED) {
596 		u32 assoc_resp_info_len;
597 
598 		memset(hif_drv->assoc_resp, 0, WILC_MAX_ASSOC_RESP_FRAME_SIZE);
599 
600 		host_int_get_assoc_res_info(vif, hif_drv->assoc_resp,
601 					    WILC_MAX_ASSOC_RESP_FRAME_SIZE,
602 					    &assoc_resp_info_len);
603 
604 		if (assoc_resp_info_len != 0) {
605 			s32 err = 0;
606 
607 			err = wilc_parse_assoc_resp_info(hif_drv->assoc_resp,
608 							 assoc_resp_info_len,
609 							 conn_info);
610 			if (err)
611 				netdev_err(vif->ndev,
612 					   "wilc_parse_assoc_resp_info() returned error %d\n",
613 					   err);
614 		}
615 	}
616 
617 	del_timer(&hif_drv->connect_timer);
618 	conn_info->conn_result(CONN_DISCONN_EVENT_CONN_RESP, mac_status,
619 			       hif_drv->conn_info.arg);
620 
621 	if (mac_status == WILC_MAC_STATUS_CONNECTED &&
622 	    conn_info->status == WLAN_STATUS_SUCCESS) {
623 		ether_addr_copy(hif_drv->assoc_bssid, conn_info->bssid);
624 		hif_drv->hif_state = HOST_IF_CONNECTED;
625 	} else {
626 		hif_drv->hif_state = HOST_IF_IDLE;
627 	}
628 
629 	kfree(conn_info->resp_ies);
630 	conn_info->resp_ies = NULL;
631 	conn_info->resp_ies_len = 0;
632 
633 	kfree(conn_info->req_ies);
634 	conn_info->req_ies = NULL;
635 	conn_info->req_ies_len = 0;
636 }
637 
638 static inline void host_int_handle_disconnect(struct wilc_vif *vif)
639 {
640 	struct host_if_drv *hif_drv = vif->hif_drv;
641 
642 	if (hif_drv->usr_scan_req.scan_result) {
643 		del_timer(&hif_drv->scan_timer);
644 		handle_scan_done(vif, SCAN_EVENT_ABORTED);
645 	}
646 
647 	if (hif_drv->conn_info.conn_result)
648 		hif_drv->conn_info.conn_result(CONN_DISCONN_EVENT_DISCONN_NOTIF,
649 					       0, hif_drv->conn_info.arg);
650 	else
651 		netdev_err(vif->ndev, "%s: conn_result is NULL\n", __func__);
652 
653 	eth_zero_addr(hif_drv->assoc_bssid);
654 
655 	hif_drv->conn_info.req_ies_len = 0;
656 	kfree(hif_drv->conn_info.req_ies);
657 	hif_drv->conn_info.req_ies = NULL;
658 	hif_drv->hif_state = HOST_IF_IDLE;
659 }
660 
661 static void handle_rcvd_gnrl_async_info(struct work_struct *work)
662 {
663 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
664 	struct wilc_vif *vif = msg->vif;
665 	struct wilc_rcvd_mac_info *mac_info = &msg->body.mac_info;
666 	struct host_if_drv *hif_drv = vif->hif_drv;
667 
668 	if (!hif_drv) {
669 		netdev_err(vif->ndev, "%s: hif driver is NULL\n", __func__);
670 		goto free_msg;
671 	}
672 
673 	if (!hif_drv->conn_info.conn_result) {
674 		netdev_err(vif->ndev, "%s: conn_result is NULL\n", __func__);
675 		goto free_msg;
676 	}
677 
678 
679         if (hif_drv->hif_state == HOST_IF_EXTERNAL_AUTH) {
680                 cfg80211_external_auth_request(vif->ndev, &vif->auth,
681 					       GFP_KERNEL);
682                 hif_drv->hif_state = HOST_IF_WAITING_CONN_RESP;
683         } else if (hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP) {
684 		host_int_parse_assoc_resp_info(vif, mac_info->status);
685 	} else if (mac_info->status == WILC_MAC_STATUS_DISCONNECTED) {
686 		if (hif_drv->hif_state == HOST_IF_CONNECTED) {
687 			host_int_handle_disconnect(vif);
688 		} else if (hif_drv->usr_scan_req.scan_result) {
689 			del_timer(&hif_drv->scan_timer);
690 			handle_scan_done(vif, SCAN_EVENT_ABORTED);
691 		}
692 	}
693 
694 free_msg:
695 	kfree(msg);
696 }
697 
698 int wilc_disconnect(struct wilc_vif *vif)
699 {
700 	struct wid wid;
701 	struct host_if_drv *hif_drv = vif->hif_drv;
702 	struct wilc_user_scan_req *scan_req;
703 	struct wilc_conn_info *conn_info;
704 	int result;
705 	u16 dummy_reason_code = 0;
706 
707 	wid.id = WID_DISCONNECT;
708 	wid.type = WID_CHAR;
709 	wid.val = (s8 *)&dummy_reason_code;
710 	wid.size = sizeof(char);
711 
712 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
713 	if (result) {
714 		netdev_err(vif->ndev, "Failed to send disconnect\n");
715 		return result;
716 	}
717 
718 	scan_req = &hif_drv->usr_scan_req;
719 	conn_info = &hif_drv->conn_info;
720 
721 	if (scan_req->scan_result) {
722 		del_timer(&hif_drv->scan_timer);
723 		scan_req->scan_result(SCAN_EVENT_ABORTED, NULL, scan_req->arg);
724 		scan_req->scan_result = NULL;
725 	}
726 
727 	if (conn_info->conn_result) {
728 		if (hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP ||
729 		    hif_drv->hif_state == HOST_IF_EXTERNAL_AUTH)
730 			del_timer(&hif_drv->connect_timer);
731 
732 		conn_info->conn_result(CONN_DISCONN_EVENT_DISCONN_NOTIF, 0,
733 				       conn_info->arg);
734 	} else {
735 		netdev_err(vif->ndev, "%s: conn_result is NULL\n", __func__);
736 	}
737 
738 	hif_drv->hif_state = HOST_IF_IDLE;
739 
740 	eth_zero_addr(hif_drv->assoc_bssid);
741 
742 	conn_info->req_ies_len = 0;
743 	kfree(conn_info->req_ies);
744 	conn_info->req_ies = NULL;
745 
746 	return 0;
747 }
748 
749 int wilc_get_statistics(struct wilc_vif *vif, struct rf_info *stats)
750 {
751 	struct wid wid_list[5];
752 	u32 wid_cnt = 0, result;
753 
754 	wid_list[wid_cnt].id = WID_LINKSPEED;
755 	wid_list[wid_cnt].type = WID_CHAR;
756 	wid_list[wid_cnt].size = sizeof(char);
757 	wid_list[wid_cnt].val = (s8 *)&stats->link_speed;
758 	wid_cnt++;
759 
760 	wid_list[wid_cnt].id = WID_RSSI;
761 	wid_list[wid_cnt].type = WID_CHAR;
762 	wid_list[wid_cnt].size = sizeof(char);
763 	wid_list[wid_cnt].val = (s8 *)&stats->rssi;
764 	wid_cnt++;
765 
766 	wid_list[wid_cnt].id = WID_SUCCESS_FRAME_COUNT;
767 	wid_list[wid_cnt].type = WID_INT;
768 	wid_list[wid_cnt].size = sizeof(u32);
769 	wid_list[wid_cnt].val = (s8 *)&stats->tx_cnt;
770 	wid_cnt++;
771 
772 	wid_list[wid_cnt].id = WID_RECEIVED_FRAGMENT_COUNT;
773 	wid_list[wid_cnt].type = WID_INT;
774 	wid_list[wid_cnt].size = sizeof(u32);
775 	wid_list[wid_cnt].val = (s8 *)&stats->rx_cnt;
776 	wid_cnt++;
777 
778 	wid_list[wid_cnt].id = WID_FAILED_COUNT;
779 	wid_list[wid_cnt].type = WID_INT;
780 	wid_list[wid_cnt].size = sizeof(u32);
781 	wid_list[wid_cnt].val = (s8 *)&stats->tx_fail_cnt;
782 	wid_cnt++;
783 
784 	result = wilc_send_config_pkt(vif, WILC_GET_CFG, wid_list, wid_cnt);
785 	if (result) {
786 		netdev_err(vif->ndev, "Failed to send scan parameters\n");
787 		return result;
788 	}
789 
790 	if (stats->link_speed > TCP_ACK_FILTER_LINK_SPEED_THRESH &&
791 	    stats->link_speed != DEFAULT_LINK_SPEED)
792 		wilc_enable_tcp_ack_filter(vif, true);
793 	else if (stats->link_speed != DEFAULT_LINK_SPEED)
794 		wilc_enable_tcp_ack_filter(vif, false);
795 
796 	return result;
797 }
798 
799 static void handle_get_statistics(struct work_struct *work)
800 {
801 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
802 	struct wilc_vif *vif = msg->vif;
803 	struct rf_info *stats = (struct rf_info *)msg->body.data;
804 
805 	wilc_get_statistics(vif, stats);
806 
807 	kfree(msg);
808 }
809 
810 static void wilc_hif_pack_sta_param(u8 *cur_byte, const u8 *mac,
811 				    struct station_parameters *params)
812 {
813 	ether_addr_copy(cur_byte, mac);
814 	cur_byte += ETH_ALEN;
815 
816 	put_unaligned_le16(params->aid, cur_byte);
817 	cur_byte += 2;
818 
819 	*cur_byte++ = params->link_sta_params.supported_rates_len;
820 	if (params->link_sta_params.supported_rates_len > 0)
821 		memcpy(cur_byte, params->link_sta_params.supported_rates,
822 		       params->link_sta_params.supported_rates_len);
823 	cur_byte += params->link_sta_params.supported_rates_len;
824 
825 	if (params->link_sta_params.ht_capa) {
826 		*cur_byte++ = true;
827 		memcpy(cur_byte, params->link_sta_params.ht_capa,
828 		       sizeof(struct ieee80211_ht_cap));
829 	} else {
830 		*cur_byte++ = false;
831 	}
832 	cur_byte += sizeof(struct ieee80211_ht_cap);
833 
834 	put_unaligned_le16(params->sta_flags_mask, cur_byte);
835 	cur_byte += 2;
836 	put_unaligned_le16(params->sta_flags_set, cur_byte);
837 }
838 
839 static int handle_remain_on_chan(struct wilc_vif *vif,
840 				 struct wilc_remain_ch *hif_remain_ch)
841 {
842 	int result;
843 	u8 remain_on_chan_flag;
844 	struct wid wid;
845 	struct host_if_drv *hif_drv = vif->hif_drv;
846 
847 	if (hif_drv->usr_scan_req.scan_result)
848 		return -EBUSY;
849 
850 	if (hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP)
851 		return -EBUSY;
852 
853 	if (vif->connecting)
854 		return -EBUSY;
855 
856 	remain_on_chan_flag = true;
857 	wid.id = WID_REMAIN_ON_CHAN;
858 	wid.type = WID_STR;
859 	wid.size = 2;
860 	wid.val = kmalloc(wid.size, GFP_KERNEL);
861 	if (!wid.val)
862 		return -ENOMEM;
863 
864 	wid.val[0] = remain_on_chan_flag;
865 	wid.val[1] = (s8)hif_remain_ch->ch;
866 
867 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
868 	kfree(wid.val);
869 	if (result)
870 		return -EBUSY;
871 
872 	hif_drv->remain_on_ch.arg = hif_remain_ch->arg;
873 	hif_drv->remain_on_ch.expired = hif_remain_ch->expired;
874 	hif_drv->remain_on_ch.ch = hif_remain_ch->ch;
875 	hif_drv->remain_on_ch.cookie = hif_remain_ch->cookie;
876 	hif_drv->remain_on_ch_timer_vif = vif;
877 
878 	return 0;
879 }
880 
881 static int wilc_handle_roc_expired(struct wilc_vif *vif, u64 cookie)
882 {
883 	u8 remain_on_chan_flag;
884 	struct wid wid;
885 	int result;
886 	struct host_if_drv *hif_drv = vif->hif_drv;
887 
888 	if (vif->priv.p2p_listen_state) {
889 		remain_on_chan_flag = false;
890 		wid.id = WID_REMAIN_ON_CHAN;
891 		wid.type = WID_STR;
892 		wid.size = 2;
893 
894 		wid.val = kmalloc(wid.size, GFP_KERNEL);
895 		if (!wid.val)
896 			return -ENOMEM;
897 
898 		wid.val[0] = remain_on_chan_flag;
899 		wid.val[1] = WILC_FALSE_FRMWR_CHANNEL;
900 
901 		result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
902 		kfree(wid.val);
903 		if (result != 0) {
904 			netdev_err(vif->ndev, "Failed to set remain channel\n");
905 			return -EINVAL;
906 		}
907 
908 		if (hif_drv->remain_on_ch.expired) {
909 			hif_drv->remain_on_ch.expired(hif_drv->remain_on_ch.arg,
910 						      cookie);
911 		}
912 	} else {
913 		netdev_dbg(vif->ndev, "Not in listen state\n");
914 	}
915 
916 	return 0;
917 }
918 
919 static void wilc_handle_listen_state_expired(struct work_struct *work)
920 {
921 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
922 
923 	wilc_handle_roc_expired(msg->vif, msg->body.remain_on_ch.cookie);
924 	kfree(msg);
925 }
926 
927 static void listen_timer_cb(struct timer_list *t)
928 {
929 	struct host_if_drv *hif_drv = from_timer(hif_drv, t,
930 						      remain_on_ch_timer);
931 	struct wilc_vif *vif = hif_drv->remain_on_ch_timer_vif;
932 	int result;
933 	struct host_if_msg *msg;
934 
935 	del_timer(&vif->hif_drv->remain_on_ch_timer);
936 
937 	msg = wilc_alloc_work(vif, wilc_handle_listen_state_expired, false);
938 	if (IS_ERR(msg))
939 		return;
940 
941 	msg->body.remain_on_ch.cookie = vif->hif_drv->remain_on_ch.cookie;
942 
943 	result = wilc_enqueue_work(msg);
944 	if (result) {
945 		netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__);
946 		kfree(msg);
947 	}
948 }
949 
950 static void handle_set_mcast_filter(struct work_struct *work)
951 {
952 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
953 	struct wilc_vif *vif = msg->vif;
954 	struct wilc_set_multicast *set_mc = &msg->body.mc_info;
955 	int result;
956 	struct wid wid;
957 	u8 *cur_byte;
958 
959 	wid.id = WID_SETUP_MULTICAST_FILTER;
960 	wid.type = WID_BIN;
961 	wid.size = sizeof(struct wilc_set_multicast) + (set_mc->cnt * ETH_ALEN);
962 	wid.val = kmalloc(wid.size, GFP_KERNEL);
963 	if (!wid.val)
964 		goto error;
965 
966 	cur_byte = wid.val;
967 	put_unaligned_le32(set_mc->enabled, cur_byte);
968 	cur_byte += 4;
969 
970 	put_unaligned_le32(set_mc->cnt, cur_byte);
971 	cur_byte += 4;
972 
973 	if (set_mc->cnt > 0 && set_mc->mc_list)
974 		memcpy(cur_byte, set_mc->mc_list, set_mc->cnt * ETH_ALEN);
975 
976 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
977 	if (result)
978 		netdev_err(vif->ndev, "Failed to send setup multicast\n");
979 
980 error:
981 	kfree(set_mc->mc_list);
982 	kfree(wid.val);
983 	kfree(msg);
984 }
985 
986 void wilc_set_wowlan_trigger(struct wilc_vif *vif, bool enabled)
987 {
988 	int ret;
989 	struct wid wid;
990 	u8 wowlan_trigger = 0;
991 
992 	if (enabled)
993 		wowlan_trigger = 1;
994 
995 	wid.id = WID_WOWLAN_TRIGGER;
996 	wid.type = WID_CHAR;
997 	wid.val = &wowlan_trigger;
998 	wid.size = sizeof(char);
999 
1000 	ret = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1001 	if (ret)
1002 		pr_err("Failed to send wowlan trigger config packet\n");
1003 }
1004 
1005 int wilc_set_external_auth_param(struct wilc_vif *vif,
1006 				 struct cfg80211_external_auth_params *auth)
1007 {
1008 	int ret;
1009 	struct wid wid;
1010 	struct wilc_external_auth_param *param;
1011 
1012 	wid.id = WID_EXTERNAL_AUTH_PARAM;
1013 	wid.type = WID_BIN_DATA;
1014 	wid.size = sizeof(*param);
1015 	param = kzalloc(sizeof(*param), GFP_KERNEL);
1016 	if (!param)
1017 		return -EINVAL;
1018 
1019 	wid.val = (u8 *)param;
1020 	param->action = auth->action;
1021 	ether_addr_copy(param->bssid, auth->bssid);
1022 	memcpy(param->ssid, auth->ssid.ssid, auth->ssid.ssid_len);
1023 	param->ssid_len = auth->ssid.ssid_len;
1024 	ret = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1025 
1026 	kfree(param);
1027 	return ret;
1028 }
1029 
1030 static void handle_scan_timer(struct work_struct *work)
1031 {
1032 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
1033 
1034 	handle_scan_done(msg->vif, SCAN_EVENT_ABORTED);
1035 	kfree(msg);
1036 }
1037 
1038 static void handle_scan_complete(struct work_struct *work)
1039 {
1040 	struct host_if_msg *msg = container_of(work, struct host_if_msg, work);
1041 
1042 	del_timer(&msg->vif->hif_drv->scan_timer);
1043 
1044 	handle_scan_done(msg->vif, SCAN_EVENT_DONE);
1045 
1046 	kfree(msg);
1047 }
1048 
1049 static void timer_scan_cb(struct timer_list *t)
1050 {
1051 	struct host_if_drv *hif_drv = from_timer(hif_drv, t, scan_timer);
1052 	struct wilc_vif *vif = hif_drv->scan_timer_vif;
1053 	struct host_if_msg *msg;
1054 	int result;
1055 
1056 	msg = wilc_alloc_work(vif, handle_scan_timer, false);
1057 	if (IS_ERR(msg))
1058 		return;
1059 
1060 	result = wilc_enqueue_work(msg);
1061 	if (result)
1062 		kfree(msg);
1063 }
1064 
1065 static void timer_connect_cb(struct timer_list *t)
1066 {
1067 	struct host_if_drv *hif_drv = from_timer(hif_drv, t,
1068 						      connect_timer);
1069 	struct wilc_vif *vif = hif_drv->connect_timer_vif;
1070 	struct host_if_msg *msg;
1071 	int result;
1072 
1073 	msg = wilc_alloc_work(vif, handle_connect_timeout, false);
1074 	if (IS_ERR(msg))
1075 		return;
1076 
1077 	result = wilc_enqueue_work(msg);
1078 	if (result)
1079 		kfree(msg);
1080 }
1081 
1082 int wilc_add_ptk(struct wilc_vif *vif, const u8 *ptk, u8 ptk_key_len,
1083 		 const u8 *mac_addr, const u8 *rx_mic, const u8 *tx_mic,
1084 		 u8 mode, u8 cipher_mode, u8 index)
1085 {
1086 	int result = 0;
1087 	u8 t_key_len  = ptk_key_len + WILC_RX_MIC_KEY_LEN + WILC_TX_MIC_KEY_LEN;
1088 
1089 	if (mode == WILC_AP_MODE) {
1090 		struct wid wid_list[2];
1091 		struct wilc_ap_wpa_ptk *key_buf;
1092 
1093 		wid_list[0].id = WID_11I_MODE;
1094 		wid_list[0].type = WID_CHAR;
1095 		wid_list[0].size = sizeof(char);
1096 		wid_list[0].val = (s8 *)&cipher_mode;
1097 
1098 		key_buf = kzalloc(sizeof(*key_buf) + t_key_len, GFP_KERNEL);
1099 		if (!key_buf)
1100 			return -ENOMEM;
1101 
1102 		ether_addr_copy(key_buf->mac_addr, mac_addr);
1103 		key_buf->index = index;
1104 		key_buf->key_len = t_key_len;
1105 		memcpy(&key_buf->key[0], ptk, ptk_key_len);
1106 
1107 		if (rx_mic)
1108 			memcpy(&key_buf->key[ptk_key_len], rx_mic,
1109 			       WILC_RX_MIC_KEY_LEN);
1110 
1111 		if (tx_mic)
1112 			memcpy(&key_buf->key[ptk_key_len + WILC_RX_MIC_KEY_LEN],
1113 			       tx_mic, WILC_TX_MIC_KEY_LEN);
1114 
1115 		wid_list[1].id = WID_ADD_PTK;
1116 		wid_list[1].type = WID_STR;
1117 		wid_list[1].size = sizeof(*key_buf) + t_key_len;
1118 		wid_list[1].val = (u8 *)key_buf;
1119 		result = wilc_send_config_pkt(vif, WILC_SET_CFG, wid_list,
1120 					      ARRAY_SIZE(wid_list));
1121 		kfree(key_buf);
1122 	} else if (mode == WILC_STATION_MODE) {
1123 		struct wid wid;
1124 		struct wilc_sta_wpa_ptk *key_buf;
1125 
1126 		key_buf = kzalloc(sizeof(*key_buf) + t_key_len, GFP_KERNEL);
1127 		if (!key_buf)
1128 			return -ENOMEM;
1129 
1130 		ether_addr_copy(key_buf->mac_addr, mac_addr);
1131 		key_buf->key_len = t_key_len;
1132 		memcpy(&key_buf->key[0], ptk, ptk_key_len);
1133 
1134 		if (rx_mic)
1135 			memcpy(&key_buf->key[ptk_key_len], rx_mic,
1136 			       WILC_RX_MIC_KEY_LEN);
1137 
1138 		if (tx_mic)
1139 			memcpy(&key_buf->key[ptk_key_len + WILC_RX_MIC_KEY_LEN],
1140 			       tx_mic, WILC_TX_MIC_KEY_LEN);
1141 
1142 		wid.id = WID_ADD_PTK;
1143 		wid.type = WID_STR;
1144 		wid.size = sizeof(*key_buf) + t_key_len;
1145 		wid.val = (s8 *)key_buf;
1146 		result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1147 		kfree(key_buf);
1148 	}
1149 
1150 	return result;
1151 }
1152 
1153 int wilc_add_igtk(struct wilc_vif *vif, const u8 *igtk, u8 igtk_key_len,
1154 		  const u8 *pn, u8 pn_len, const u8 *mac_addr, u8 mode, u8 index)
1155 {
1156 	int result = 0;
1157 	u8 t_key_len = igtk_key_len;
1158 	struct wid wid;
1159 	struct wilc_wpa_igtk *key_buf;
1160 
1161 	key_buf = kzalloc(sizeof(*key_buf) + t_key_len, GFP_KERNEL);
1162 	if (!key_buf)
1163 		return -ENOMEM;
1164 
1165 	key_buf->index = index;
1166 
1167 	memcpy(&key_buf->pn[0], pn, pn_len);
1168 	key_buf->pn_len = pn_len;
1169 
1170 	memcpy(&key_buf->key[0], igtk, igtk_key_len);
1171 	key_buf->key_len = t_key_len;
1172 
1173 	wid.id = WID_ADD_IGTK;
1174 	wid.type = WID_STR;
1175 	wid.size = sizeof(*key_buf) + t_key_len;
1176 	wid.val = (s8 *)key_buf;
1177 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1178 	kfree(key_buf);
1179 
1180 	return result;
1181 }
1182 
1183 int wilc_add_rx_gtk(struct wilc_vif *vif, const u8 *rx_gtk, u8 gtk_key_len,
1184 		    u8 index, u32 key_rsc_len, const u8 *key_rsc,
1185 		    const u8 *rx_mic, const u8 *tx_mic, u8 mode,
1186 		    u8 cipher_mode)
1187 {
1188 	int result = 0;
1189 	struct wilc_gtk_key *gtk_key;
1190 	int t_key_len = gtk_key_len + WILC_RX_MIC_KEY_LEN + WILC_TX_MIC_KEY_LEN;
1191 
1192 	gtk_key = kzalloc(sizeof(*gtk_key) + t_key_len, GFP_KERNEL);
1193 	if (!gtk_key)
1194 		return -ENOMEM;
1195 
1196 	/* fill bssid value only in station mode */
1197 	if (mode == WILC_STATION_MODE &&
1198 	    vif->hif_drv->hif_state == HOST_IF_CONNECTED)
1199 		memcpy(gtk_key->mac_addr, vif->hif_drv->assoc_bssid, ETH_ALEN);
1200 
1201 	if (key_rsc)
1202 		memcpy(gtk_key->rsc, key_rsc, 8);
1203 	gtk_key->index = index;
1204 	gtk_key->key_len = t_key_len;
1205 	memcpy(&gtk_key->key[0], rx_gtk, gtk_key_len);
1206 
1207 	if (rx_mic)
1208 		memcpy(&gtk_key->key[gtk_key_len], rx_mic, WILC_RX_MIC_KEY_LEN);
1209 
1210 	if (tx_mic)
1211 		memcpy(&gtk_key->key[gtk_key_len + WILC_RX_MIC_KEY_LEN],
1212 		       tx_mic, WILC_TX_MIC_KEY_LEN);
1213 
1214 	if (mode == WILC_AP_MODE) {
1215 		struct wid wid_list[2];
1216 
1217 		wid_list[0].id = WID_11I_MODE;
1218 		wid_list[0].type = WID_CHAR;
1219 		wid_list[0].size = sizeof(char);
1220 		wid_list[0].val = (s8 *)&cipher_mode;
1221 
1222 		wid_list[1].id = WID_ADD_RX_GTK;
1223 		wid_list[1].type = WID_STR;
1224 		wid_list[1].size = sizeof(*gtk_key) + t_key_len;
1225 		wid_list[1].val = (u8 *)gtk_key;
1226 
1227 		result = wilc_send_config_pkt(vif, WILC_SET_CFG, wid_list,
1228 					      ARRAY_SIZE(wid_list));
1229 	} else if (mode == WILC_STATION_MODE) {
1230 		struct wid wid;
1231 
1232 		wid.id = WID_ADD_RX_GTK;
1233 		wid.type = WID_STR;
1234 		wid.size = sizeof(*gtk_key) + t_key_len;
1235 		wid.val = (u8 *)gtk_key;
1236 		result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1237 	}
1238 
1239 	kfree(gtk_key);
1240 	return result;
1241 }
1242 
1243 int wilc_set_pmkid_info(struct wilc_vif *vif, struct wilc_pmkid_attr *pmkid)
1244 {
1245 	struct wid wid;
1246 
1247 	wid.id = WID_PMKID_INFO;
1248 	wid.type = WID_STR;
1249 	wid.size = (pmkid->numpmkid * sizeof(struct wilc_pmkid)) + 1;
1250 	wid.val = (u8 *)pmkid;
1251 
1252 	return wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1253 }
1254 
1255 int wilc_get_mac_address(struct wilc_vif *vif, u8 *mac_addr)
1256 {
1257 	int result;
1258 	struct wid wid;
1259 
1260 	wid.id = WID_MAC_ADDR;
1261 	wid.type = WID_STR;
1262 	wid.size = ETH_ALEN;
1263 	wid.val = mac_addr;
1264 
1265 	result = wilc_send_config_pkt(vif, WILC_GET_CFG, &wid, 1);
1266 	if (result)
1267 		netdev_err(vif->ndev, "Failed to get mac address\n");
1268 
1269 	return result;
1270 }
1271 
1272 int wilc_set_mac_address(struct wilc_vif *vif, u8 *mac_addr)
1273 {
1274 	struct wid wid;
1275 	int result;
1276 
1277 	wid.id = WID_MAC_ADDR;
1278 	wid.type = WID_STR;
1279 	wid.size = ETH_ALEN;
1280 	wid.val = mac_addr;
1281 
1282 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1283 	if (result)
1284 		netdev_err(vif->ndev, "Failed to set mac address\n");
1285 
1286 	return result;
1287 }
1288 
1289 int wilc_set_join_req(struct wilc_vif *vif, u8 *bssid, const u8 *ies,
1290 		      size_t ies_len)
1291 {
1292 	int result;
1293 	struct host_if_drv *hif_drv = vif->hif_drv;
1294 	struct wilc_conn_info *conn_info = &hif_drv->conn_info;
1295 
1296 	if (bssid)
1297 		ether_addr_copy(conn_info->bssid, bssid);
1298 
1299 	if (ies) {
1300 		conn_info->req_ies_len = ies_len;
1301 		conn_info->req_ies = kmemdup(ies, ies_len, GFP_KERNEL);
1302 		if (!conn_info->req_ies)
1303 			return -ENOMEM;
1304 	}
1305 
1306 	result = wilc_send_connect_wid(vif);
1307 	if (result)
1308 		goto free_ies;
1309 
1310 	hif_drv->connect_timer_vif = vif;
1311 	mod_timer(&hif_drv->connect_timer,
1312 		  jiffies + msecs_to_jiffies(WILC_HIF_CONNECT_TIMEOUT_MS));
1313 
1314 	return 0;
1315 
1316 free_ies:
1317 	kfree(conn_info->req_ies);
1318 
1319 	return result;
1320 }
1321 
1322 int wilc_set_mac_chnl_num(struct wilc_vif *vif, u8 channel)
1323 {
1324 	struct wid wid;
1325 	int result;
1326 
1327 	wid.id = WID_CURRENT_CHANNEL;
1328 	wid.type = WID_CHAR;
1329 	wid.size = sizeof(char);
1330 	wid.val = &channel;
1331 
1332 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1333 	if (result)
1334 		netdev_err(vif->ndev, "Failed to set channel\n");
1335 
1336 	return result;
1337 }
1338 
1339 int wilc_set_operation_mode(struct wilc_vif *vif, int index, u8 mode,
1340 			    u8 ifc_id)
1341 {
1342 	struct wid wid;
1343 	int result;
1344 	struct wilc_drv_handler drv;
1345 
1346 	wid.id = WID_SET_OPERATION_MODE;
1347 	wid.type = WID_STR;
1348 	wid.size = sizeof(drv);
1349 	wid.val = (u8 *)&drv;
1350 
1351 	drv.handler = cpu_to_le32(index);
1352 	drv.mode = (ifc_id | (mode << 1));
1353 
1354 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1355 	if (result)
1356 		netdev_err(vif->ndev, "Failed to set driver handler\n");
1357 
1358 	return result;
1359 }
1360 
1361 s32 wilc_get_inactive_time(struct wilc_vif *vif, const u8 *mac, u32 *out_val)
1362 {
1363 	struct wid wid;
1364 	s32 result;
1365 
1366 	wid.id = WID_SET_STA_MAC_INACTIVE_TIME;
1367 	wid.type = WID_STR;
1368 	wid.size = ETH_ALEN;
1369 	wid.val = kzalloc(wid.size, GFP_KERNEL);
1370 	if (!wid.val)
1371 		return -ENOMEM;
1372 
1373 	ether_addr_copy(wid.val, mac);
1374 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1375 	kfree(wid.val);
1376 	if (result) {
1377 		netdev_err(vif->ndev, "Failed to set inactive mac\n");
1378 		return result;
1379 	}
1380 
1381 	wid.id = WID_GET_INACTIVE_TIME;
1382 	wid.type = WID_INT;
1383 	wid.val = (s8 *)out_val;
1384 	wid.size = sizeof(u32);
1385 	result = wilc_send_config_pkt(vif, WILC_GET_CFG, &wid, 1);
1386 	if (result)
1387 		netdev_err(vif->ndev, "Failed to get inactive time\n");
1388 
1389 	return result;
1390 }
1391 
1392 int wilc_get_rssi(struct wilc_vif *vif, s8 *rssi_level)
1393 {
1394 	struct wid wid;
1395 	int result;
1396 
1397 	if (!rssi_level) {
1398 		netdev_err(vif->ndev, "%s: RSSI level is NULL\n", __func__);
1399 		return -EFAULT;
1400 	}
1401 
1402 	wid.id = WID_RSSI;
1403 	wid.type = WID_CHAR;
1404 	wid.size = sizeof(char);
1405 	wid.val = rssi_level;
1406 	result = wilc_send_config_pkt(vif, WILC_GET_CFG, &wid, 1);
1407 	if (result)
1408 		netdev_err(vif->ndev, "Failed to get RSSI value\n");
1409 
1410 	return result;
1411 }
1412 
1413 static int wilc_get_stats_async(struct wilc_vif *vif, struct rf_info *stats)
1414 {
1415 	int result;
1416 	struct host_if_msg *msg;
1417 
1418 	msg = wilc_alloc_work(vif, handle_get_statistics, false);
1419 	if (IS_ERR(msg))
1420 		return PTR_ERR(msg);
1421 
1422 	msg->body.data = (char *)stats;
1423 
1424 	result = wilc_enqueue_work(msg);
1425 	if (result) {
1426 		netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__);
1427 		kfree(msg);
1428 		return result;
1429 	}
1430 
1431 	return result;
1432 }
1433 
1434 int wilc_hif_set_cfg(struct wilc_vif *vif, struct cfg_param_attr *param)
1435 {
1436 	struct wid wid_list[4];
1437 	int i = 0;
1438 
1439 	if (param->flag & WILC_CFG_PARAM_RETRY_SHORT) {
1440 		wid_list[i].id = WID_SHORT_RETRY_LIMIT;
1441 		wid_list[i].val = (s8 *)&param->short_retry_limit;
1442 		wid_list[i].type = WID_SHORT;
1443 		wid_list[i].size = sizeof(u16);
1444 		i++;
1445 	}
1446 	if (param->flag & WILC_CFG_PARAM_RETRY_LONG) {
1447 		wid_list[i].id = WID_LONG_RETRY_LIMIT;
1448 		wid_list[i].val = (s8 *)&param->long_retry_limit;
1449 		wid_list[i].type = WID_SHORT;
1450 		wid_list[i].size = sizeof(u16);
1451 		i++;
1452 	}
1453 	if (param->flag & WILC_CFG_PARAM_FRAG_THRESHOLD) {
1454 		wid_list[i].id = WID_FRAG_THRESHOLD;
1455 		wid_list[i].val = (s8 *)&param->frag_threshold;
1456 		wid_list[i].type = WID_SHORT;
1457 		wid_list[i].size = sizeof(u16);
1458 		i++;
1459 	}
1460 	if (param->flag & WILC_CFG_PARAM_RTS_THRESHOLD) {
1461 		wid_list[i].id = WID_RTS_THRESHOLD;
1462 		wid_list[i].val = (s8 *)&param->rts_threshold;
1463 		wid_list[i].type = WID_SHORT;
1464 		wid_list[i].size = sizeof(u16);
1465 		i++;
1466 	}
1467 
1468 	return wilc_send_config_pkt(vif, WILC_SET_CFG, wid_list, i);
1469 }
1470 
1471 static void get_periodic_rssi(struct timer_list *t)
1472 {
1473 	struct wilc_vif *vif = from_timer(vif, t, periodic_rssi);
1474 
1475 	if (!vif->hif_drv) {
1476 		netdev_err(vif->ndev, "%s: hif driver is NULL", __func__);
1477 		return;
1478 	}
1479 
1480 	if (vif->hif_drv->hif_state == HOST_IF_CONNECTED)
1481 		wilc_get_stats_async(vif, &vif->periodic_stat);
1482 
1483 	mod_timer(&vif->periodic_rssi, jiffies + msecs_to_jiffies(5000));
1484 }
1485 
1486 int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)
1487 {
1488 	struct host_if_drv *hif_drv;
1489 	struct wilc_vif *vif = netdev_priv(dev);
1490 
1491 	hif_drv  = kzalloc(sizeof(*hif_drv), GFP_KERNEL);
1492 	if (!hif_drv)
1493 		return -ENOMEM;
1494 
1495 	*hif_drv_handler = hif_drv;
1496 
1497 	vif->hif_drv = hif_drv;
1498 
1499 	timer_setup(&vif->periodic_rssi, get_periodic_rssi, 0);
1500 	mod_timer(&vif->periodic_rssi, jiffies + msecs_to_jiffies(5000));
1501 
1502 	timer_setup(&hif_drv->scan_timer, timer_scan_cb, 0);
1503 	timer_setup(&hif_drv->connect_timer, timer_connect_cb, 0);
1504 	timer_setup(&hif_drv->remain_on_ch_timer, listen_timer_cb, 0);
1505 
1506 	hif_drv->hif_state = HOST_IF_IDLE;
1507 
1508 	hif_drv->p2p_timeout = 0;
1509 
1510 	return 0;
1511 }
1512 
1513 int wilc_deinit(struct wilc_vif *vif)
1514 {
1515 	int result = 0;
1516 	struct host_if_drv *hif_drv = vif->hif_drv;
1517 
1518 	if (!hif_drv) {
1519 		netdev_err(vif->ndev, "%s: hif driver is NULL", __func__);
1520 		return -EFAULT;
1521 	}
1522 
1523 	mutex_lock(&vif->wilc->deinit_lock);
1524 
1525 	del_timer_sync(&hif_drv->scan_timer);
1526 	del_timer_sync(&hif_drv->connect_timer);
1527 	del_timer_sync(&vif->periodic_rssi);
1528 	del_timer_sync(&hif_drv->remain_on_ch_timer);
1529 
1530 	if (hif_drv->usr_scan_req.scan_result) {
1531 		hif_drv->usr_scan_req.scan_result(SCAN_EVENT_ABORTED, NULL,
1532 						  hif_drv->usr_scan_req.arg);
1533 		hif_drv->usr_scan_req.scan_result = NULL;
1534 	}
1535 
1536 	hif_drv->hif_state = HOST_IF_IDLE;
1537 
1538 	kfree(hif_drv);
1539 	vif->hif_drv = NULL;
1540 	mutex_unlock(&vif->wilc->deinit_lock);
1541 	return result;
1542 }
1543 
1544 void wilc_network_info_received(struct wilc *wilc, u8 *buffer, u32 length)
1545 {
1546 	int result;
1547 	struct host_if_msg *msg;
1548 	int id;
1549 	struct host_if_drv *hif_drv;
1550 	struct wilc_vif *vif;
1551 
1552 	id = get_unaligned_le32(&buffer[length - 4]);
1553 	vif = wilc_get_vif_from_idx(wilc, id);
1554 	if (!vif)
1555 		return;
1556 	hif_drv = vif->hif_drv;
1557 
1558 	if (!hif_drv) {
1559 		netdev_err(vif->ndev, "driver not init[%p]\n", hif_drv);
1560 		return;
1561 	}
1562 
1563 	msg = wilc_alloc_work(vif, handle_rcvd_ntwrk_info, false);
1564 	if (IS_ERR(msg))
1565 		return;
1566 
1567 	msg->body.net_info.frame_len = get_unaligned_le16(&buffer[6]) - 1;
1568 	msg->body.net_info.rssi = buffer[8];
1569 	msg->body.net_info.mgmt = kmemdup(&buffer[9],
1570 					  msg->body.net_info.frame_len,
1571 					  GFP_KERNEL);
1572 	if (!msg->body.net_info.mgmt) {
1573 		kfree(msg);
1574 		return;
1575 	}
1576 
1577 	result = wilc_enqueue_work(msg);
1578 	if (result) {
1579 		netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__);
1580 		kfree(msg->body.net_info.mgmt);
1581 		kfree(msg);
1582 	}
1583 }
1584 
1585 void wilc_gnrl_async_info_received(struct wilc *wilc, u8 *buffer, u32 length)
1586 {
1587 	int result;
1588 	struct host_if_msg *msg;
1589 	int id;
1590 	struct host_if_drv *hif_drv;
1591 	struct wilc_vif *vif;
1592 
1593 	mutex_lock(&wilc->deinit_lock);
1594 
1595 	id = get_unaligned_le32(&buffer[length - 4]);
1596 	vif = wilc_get_vif_from_idx(wilc, id);
1597 	if (!vif) {
1598 		mutex_unlock(&wilc->deinit_lock);
1599 		return;
1600 	}
1601 
1602 	hif_drv = vif->hif_drv;
1603 
1604 	if (!hif_drv) {
1605 		mutex_unlock(&wilc->deinit_lock);
1606 		return;
1607 	}
1608 
1609 	if (!hif_drv->conn_info.conn_result) {
1610 		netdev_err(vif->ndev, "%s: conn_result is NULL\n", __func__);
1611 		mutex_unlock(&wilc->deinit_lock);
1612 		return;
1613 	}
1614 
1615 	msg = wilc_alloc_work(vif, handle_rcvd_gnrl_async_info, false);
1616 	if (IS_ERR(msg)) {
1617 		mutex_unlock(&wilc->deinit_lock);
1618 		return;
1619 	}
1620 
1621 	msg->body.mac_info.status = buffer[7];
1622 	result = wilc_enqueue_work(msg);
1623 	if (result) {
1624 		netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__);
1625 		kfree(msg);
1626 	}
1627 
1628 	mutex_unlock(&wilc->deinit_lock);
1629 }
1630 
1631 void wilc_scan_complete_received(struct wilc *wilc, u8 *buffer, u32 length)
1632 {
1633 	int result;
1634 	int id;
1635 	struct host_if_drv *hif_drv;
1636 	struct wilc_vif *vif;
1637 
1638 	id = get_unaligned_le32(&buffer[length - 4]);
1639 	vif = wilc_get_vif_from_idx(wilc, id);
1640 	if (!vif)
1641 		return;
1642 	hif_drv = vif->hif_drv;
1643 
1644 	if (!hif_drv)
1645 		return;
1646 
1647 	if (hif_drv->usr_scan_req.scan_result) {
1648 		struct host_if_msg *msg;
1649 
1650 		msg = wilc_alloc_work(vif, handle_scan_complete, false);
1651 		if (IS_ERR(msg))
1652 			return;
1653 
1654 		result = wilc_enqueue_work(msg);
1655 		if (result) {
1656 			netdev_err(vif->ndev, "%s: enqueue work failed\n",
1657 				   __func__);
1658 			kfree(msg);
1659 		}
1660 	}
1661 }
1662 
1663 int wilc_remain_on_channel(struct wilc_vif *vif, u64 cookie,
1664 			   u32 duration, u16 chan,
1665 			   void (*expired)(void *, u64),
1666 			   void *user_arg)
1667 {
1668 	struct wilc_remain_ch roc;
1669 	int result;
1670 
1671 	roc.ch = chan;
1672 	roc.expired = expired;
1673 	roc.arg = user_arg;
1674 	roc.duration = duration;
1675 	roc.cookie = cookie;
1676 	result = handle_remain_on_chan(vif, &roc);
1677 	if (result)
1678 		netdev_err(vif->ndev, "%s: failed to set remain on channel\n",
1679 			   __func__);
1680 
1681 	return result;
1682 }
1683 
1684 int wilc_listen_state_expired(struct wilc_vif *vif, u64 cookie)
1685 {
1686 	if (!vif->hif_drv) {
1687 		netdev_err(vif->ndev, "%s: hif driver is NULL", __func__);
1688 		return -EFAULT;
1689 	}
1690 
1691 	del_timer(&vif->hif_drv->remain_on_ch_timer);
1692 
1693 	return wilc_handle_roc_expired(vif, cookie);
1694 }
1695 
1696 void wilc_frame_register(struct wilc_vif *vif, u16 frame_type, bool reg)
1697 {
1698 	struct wid wid;
1699 	int result;
1700 	struct wilc_reg_frame reg_frame;
1701 
1702 	wid.id = WID_REGISTER_FRAME;
1703 	wid.type = WID_STR;
1704 	wid.size = sizeof(reg_frame);
1705 	wid.val = (u8 *)&reg_frame;
1706 
1707 	memset(&reg_frame, 0x0, sizeof(reg_frame));
1708 
1709 	if (reg)
1710 		reg_frame.reg = 1;
1711 
1712 	switch (frame_type) {
1713 	case IEEE80211_STYPE_ACTION:
1714 		reg_frame.reg_id = WILC_FW_ACTION_FRM_IDX;
1715 		break;
1716 
1717 	case IEEE80211_STYPE_PROBE_REQ:
1718 		reg_frame.reg_id = WILC_FW_PROBE_REQ_IDX;
1719 		break;
1720 
1721         case IEEE80211_STYPE_AUTH:
1722                 reg_frame.reg_id = WILC_FW_AUTH_REQ_IDX;
1723                 break;
1724 
1725 	default:
1726 		break;
1727 	}
1728 	reg_frame.frame_type = cpu_to_le16(frame_type);
1729 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1730 	if (result)
1731 		netdev_err(vif->ndev, "Failed to frame register\n");
1732 }
1733 
1734 int wilc_add_beacon(struct wilc_vif *vif, u32 interval, u32 dtim_period,
1735 		    struct cfg80211_beacon_data *params)
1736 {
1737 	struct wid wid;
1738 	int result;
1739 	u8 *cur_byte;
1740 
1741 	wid.id = WID_ADD_BEACON;
1742 	wid.type = WID_BIN;
1743 	wid.size = params->head_len + params->tail_len + 16;
1744 	wid.val = kzalloc(wid.size, GFP_KERNEL);
1745 	if (!wid.val)
1746 		return -ENOMEM;
1747 
1748 	cur_byte = wid.val;
1749 	put_unaligned_le32(interval, cur_byte);
1750 	cur_byte += 4;
1751 	put_unaligned_le32(dtim_period, cur_byte);
1752 	cur_byte += 4;
1753 	put_unaligned_le32(params->head_len, cur_byte);
1754 	cur_byte += 4;
1755 
1756 	if (params->head_len > 0)
1757 		memcpy(cur_byte, params->head, params->head_len);
1758 	cur_byte += params->head_len;
1759 
1760 	put_unaligned_le32(params->tail_len, cur_byte);
1761 	cur_byte += 4;
1762 
1763 	if (params->tail_len > 0)
1764 		memcpy(cur_byte, params->tail, params->tail_len);
1765 
1766 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1767 	if (result)
1768 		netdev_err(vif->ndev, "Failed to send add beacon\n");
1769 
1770 	kfree(wid.val);
1771 
1772 	return result;
1773 }
1774 
1775 int wilc_del_beacon(struct wilc_vif *vif)
1776 {
1777 	int result;
1778 	struct wid wid;
1779 	u8 del_beacon = 0;
1780 
1781 	wid.id = WID_DEL_BEACON;
1782 	wid.type = WID_CHAR;
1783 	wid.size = sizeof(char);
1784 	wid.val = &del_beacon;
1785 
1786 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1787 	if (result)
1788 		netdev_err(vif->ndev, "Failed to send delete beacon\n");
1789 
1790 	return result;
1791 }
1792 
1793 int wilc_add_station(struct wilc_vif *vif, const u8 *mac,
1794 		     struct station_parameters *params)
1795 {
1796 	struct wid wid;
1797 	int result;
1798 	u8 *cur_byte;
1799 
1800 	wid.id = WID_ADD_STA;
1801 	wid.type = WID_BIN;
1802 	wid.size = WILC_ADD_STA_LENGTH +
1803 		   params->link_sta_params.supported_rates_len;
1804 	wid.val = kmalloc(wid.size, GFP_KERNEL);
1805 	if (!wid.val)
1806 		return -ENOMEM;
1807 
1808 	cur_byte = wid.val;
1809 	wilc_hif_pack_sta_param(cur_byte, mac, params);
1810 
1811 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1812 	if (result != 0)
1813 		netdev_err(vif->ndev, "Failed to send add station\n");
1814 
1815 	kfree(wid.val);
1816 
1817 	return result;
1818 }
1819 
1820 int wilc_del_station(struct wilc_vif *vif, const u8 *mac_addr)
1821 {
1822 	struct wid wid;
1823 	int result;
1824 
1825 	wid.id = WID_REMOVE_STA;
1826 	wid.type = WID_BIN;
1827 	wid.size = ETH_ALEN;
1828 	wid.val = kzalloc(wid.size, GFP_KERNEL);
1829 	if (!wid.val)
1830 		return -ENOMEM;
1831 
1832 	if (!mac_addr)
1833 		eth_broadcast_addr(wid.val);
1834 	else
1835 		ether_addr_copy(wid.val, mac_addr);
1836 
1837 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1838 	if (result)
1839 		netdev_err(vif->ndev, "Failed to del station\n");
1840 
1841 	kfree(wid.val);
1842 
1843 	return result;
1844 }
1845 
1846 int wilc_del_allstation(struct wilc_vif *vif, u8 mac_addr[][ETH_ALEN])
1847 {
1848 	struct wid wid;
1849 	int result;
1850 	int i;
1851 	u8 assoc_sta = 0;
1852 	struct wilc_del_all_sta del_sta;
1853 
1854 	memset(&del_sta, 0x0, sizeof(del_sta));
1855 	for (i = 0; i < WILC_MAX_NUM_STA; i++) {
1856 		if (!is_zero_ether_addr(mac_addr[i])) {
1857 			assoc_sta++;
1858 			ether_addr_copy(del_sta.mac[i], mac_addr[i]);
1859 		}
1860 	}
1861 
1862 	if (!assoc_sta)
1863 		return 0;
1864 
1865 	del_sta.assoc_sta = assoc_sta;
1866 
1867 	wid.id = WID_DEL_ALL_STA;
1868 	wid.type = WID_STR;
1869 	wid.size = (assoc_sta * ETH_ALEN) + 1;
1870 	wid.val = (u8 *)&del_sta;
1871 
1872 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1873 	if (result)
1874 		netdev_err(vif->ndev, "Failed to send delete all station\n");
1875 
1876 	return result;
1877 }
1878 
1879 int wilc_edit_station(struct wilc_vif *vif, const u8 *mac,
1880 		      struct station_parameters *params)
1881 {
1882 	struct wid wid;
1883 	int result;
1884 	u8 *cur_byte;
1885 
1886 	wid.id = WID_EDIT_STA;
1887 	wid.type = WID_BIN;
1888 	wid.size = WILC_ADD_STA_LENGTH +
1889 		   params->link_sta_params.supported_rates_len;
1890 	wid.val = kmalloc(wid.size, GFP_KERNEL);
1891 	if (!wid.val)
1892 		return -ENOMEM;
1893 
1894 	cur_byte = wid.val;
1895 	wilc_hif_pack_sta_param(cur_byte, mac, params);
1896 
1897 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1898 	if (result)
1899 		netdev_err(vif->ndev, "Failed to send edit station\n");
1900 
1901 	kfree(wid.val);
1902 	return result;
1903 }
1904 
1905 int wilc_set_power_mgmt(struct wilc_vif *vif, bool enabled, u32 timeout)
1906 {
1907 	struct wilc *wilc = vif->wilc;
1908 	struct wid wid;
1909 	int result;
1910 	s8 power_mode;
1911 
1912 	if (enabled)
1913 		power_mode = WILC_FW_MIN_FAST_PS;
1914 	else
1915 		power_mode = WILC_FW_NO_POWERSAVE;
1916 
1917 	wid.id = WID_POWER_MANAGEMENT;
1918 	wid.val = &power_mode;
1919 	wid.size = sizeof(char);
1920 	result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1921 	if (result)
1922 		netdev_err(vif->ndev, "Failed to send power management\n");
1923 	else
1924 		wilc->power_save_mode = enabled;
1925 
1926 	return result;
1927 }
1928 
1929 int wilc_setup_multicast_filter(struct wilc_vif *vif, u32 enabled, u32 count,
1930 				u8 *mc_list)
1931 {
1932 	int result;
1933 	struct host_if_msg *msg;
1934 
1935 	msg = wilc_alloc_work(vif, handle_set_mcast_filter, false);
1936 	if (IS_ERR(msg))
1937 		return PTR_ERR(msg);
1938 
1939 	msg->body.mc_info.enabled = enabled;
1940 	msg->body.mc_info.cnt = count;
1941 	msg->body.mc_info.mc_list = mc_list;
1942 
1943 	result = wilc_enqueue_work(msg);
1944 	if (result) {
1945 		netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__);
1946 		kfree(msg);
1947 	}
1948 	return result;
1949 }
1950 
1951 int wilc_set_tx_power(struct wilc_vif *vif, u8 tx_power)
1952 {
1953 	struct wid wid;
1954 
1955 	wid.id = WID_TX_POWER;
1956 	wid.type = WID_CHAR;
1957 	wid.val = &tx_power;
1958 	wid.size = sizeof(char);
1959 
1960 	return wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1961 }
1962 
1963 int wilc_get_tx_power(struct wilc_vif *vif, u8 *tx_power)
1964 {
1965 	struct wid wid;
1966 
1967 	wid.id = WID_TX_POWER;
1968 	wid.type = WID_CHAR;
1969 	wid.val = tx_power;
1970 	wid.size = sizeof(char);
1971 
1972 	return wilc_send_config_pkt(vif, WILC_GET_CFG, &wid, 1);
1973 }
1974 
1975 int wilc_set_default_mgmt_key_index(struct wilc_vif *vif, u8 index)
1976 {
1977         struct wid wid;
1978         int result;
1979 
1980         wid.id = WID_DEFAULT_MGMT_KEY_ID;
1981         wid.type = WID_CHAR;
1982         wid.size = sizeof(char);
1983         wid.val = &index;
1984         result = wilc_send_config_pkt(vif, WILC_SET_CFG, &wid, 1);
1985         if (result)
1986                 netdev_err(vif->ndev,
1987                            "Failed to send default mgmt key index\n");
1988 
1989         return result;
1990 }
1991