xref: /openbmc/linux/drivers/net/wireless/ath/ath6kl/wmi.c (revision 6b342707)
1 /*
2  * Copyright (c) 2004-2011 Atheros Communications Inc.
3  * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
4  *
5  * Permission to use, copy, modify, and/or distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #include <linux/ip.h>
19 #include <linux/in.h>
20 #include "core.h"
21 #include "debug.h"
22 #include "testmode.h"
23 #include "trace.h"
24 #include "../regd.h"
25 #include "../regd_common.h"
26 
27 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx);
28 
29 static const s32 wmi_rate_tbl[][2] = {
30 	/* {W/O SGI, with SGI} */
31 	{1000, 1000},
32 	{2000, 2000},
33 	{5500, 5500},
34 	{11000, 11000},
35 	{6000, 6000},
36 	{9000, 9000},
37 	{12000, 12000},
38 	{18000, 18000},
39 	{24000, 24000},
40 	{36000, 36000},
41 	{48000, 48000},
42 	{54000, 54000},
43 	{6500, 7200},
44 	{13000, 14400},
45 	{19500, 21700},
46 	{26000, 28900},
47 	{39000, 43300},
48 	{52000, 57800},
49 	{58500, 65000},
50 	{65000, 72200},
51 	{13500, 15000},
52 	{27000, 30000},
53 	{40500, 45000},
54 	{54000, 60000},
55 	{81000, 90000},
56 	{108000, 120000},
57 	{121500, 135000},
58 	{135000, 150000},
59 	{0, 0}
60 };
61 
62 static const s32 wmi_rate_tbl_mcs15[][2] = {
63 	/* {W/O SGI, with SGI} */
64 	{1000, 1000},
65 	{2000, 2000},
66 	{5500, 5500},
67 	{11000, 11000},
68 	{6000, 6000},
69 	{9000, 9000},
70 	{12000, 12000},
71 	{18000, 18000},
72 	{24000, 24000},
73 	{36000, 36000},
74 	{48000, 48000},
75 	{54000, 54000},
76 	{6500, 7200},     /* HT 20, MCS 0 */
77 	{13000, 14400},
78 	{19500, 21700},
79 	{26000, 28900},
80 	{39000, 43300},
81 	{52000, 57800},
82 	{58500, 65000},
83 	{65000, 72200},
84 	{13000, 14400},   /* HT 20, MCS 8 */
85 	{26000, 28900},
86 	{39000, 43300},
87 	{52000, 57800},
88 	{78000, 86700},
89 	{104000, 115600},
90 	{117000, 130000},
91 	{130000, 144400}, /* HT 20, MCS 15 */
92 	{13500, 15000},   /*HT 40, MCS 0 */
93 	{27000, 30000},
94 	{40500, 45000},
95 	{54000, 60000},
96 	{81000, 90000},
97 	{108000, 120000},
98 	{121500, 135000},
99 	{135000, 150000},
100 	{27000, 30000},   /*HT 40, MCS 8 */
101 	{54000, 60000},
102 	{81000, 90000},
103 	{108000, 120000},
104 	{162000, 180000},
105 	{216000, 240000},
106 	{243000, 270000},
107 	{270000, 300000}, /*HT 40, MCS 15 */
108 	{0, 0}
109 };
110 
111 /* 802.1d to AC mapping. Refer pg 57 of WMM-test-plan-v1.2 */
112 static const u8 up_to_ac[] = {
113 	WMM_AC_BE,
114 	WMM_AC_BK,
115 	WMM_AC_BK,
116 	WMM_AC_BE,
117 	WMM_AC_VI,
118 	WMM_AC_VI,
119 	WMM_AC_VO,
120 	WMM_AC_VO,
121 };
122 
123 void ath6kl_wmi_set_control_ep(struct wmi *wmi, enum htc_endpoint_id ep_id)
124 {
125 	if (WARN_ON(ep_id == ENDPOINT_UNUSED || ep_id >= ENDPOINT_MAX))
126 		return;
127 
128 	wmi->ep_id = ep_id;
129 }
130 
131 enum htc_endpoint_id ath6kl_wmi_get_control_ep(struct wmi *wmi)
132 {
133 	return wmi->ep_id;
134 }
135 
136 struct ath6kl_vif *ath6kl_get_vif_by_index(struct ath6kl *ar, u8 if_idx)
137 {
138 	struct ath6kl_vif *vif, *found = NULL;
139 
140 	if (WARN_ON(if_idx > (ar->vif_max - 1)))
141 		return NULL;
142 
143 	/* FIXME: Locking */
144 	spin_lock_bh(&ar->list_lock);
145 	list_for_each_entry(vif, &ar->vif_list, list) {
146 		if (vif->fw_vif_idx == if_idx) {
147 			found = vif;
148 			break;
149 		}
150 	}
151 	spin_unlock_bh(&ar->list_lock);
152 
153 	return found;
154 }
155 
156 /*  Performs DIX to 802.3 encapsulation for transmit packets.
157  *  Assumes the entire DIX header is contiguous and that there is
158  *  enough room in the buffer for a 802.3 mac header and LLC+SNAP headers.
159  */
160 int ath6kl_wmi_dix_2_dot3(struct wmi *wmi, struct sk_buff *skb)
161 {
162 	struct ath6kl_llc_snap_hdr *llc_hdr;
163 	struct ethhdr *eth_hdr;
164 	size_t new_len;
165 	__be16 type;
166 	u8 *datap;
167 	u16 size;
168 
169 	if (WARN_ON(skb == NULL))
170 		return -EINVAL;
171 
172 	size = sizeof(struct ath6kl_llc_snap_hdr) + sizeof(struct wmi_data_hdr);
173 	if (skb_headroom(skb) < size)
174 		return -ENOMEM;
175 
176 	eth_hdr = (struct ethhdr *) skb->data;
177 	type = eth_hdr->h_proto;
178 
179 	if (!is_ethertype(be16_to_cpu(type))) {
180 		ath6kl_dbg(ATH6KL_DBG_WMI,
181 			   "%s: pkt is already in 802.3 format\n", __func__);
182 		return 0;
183 	}
184 
185 	new_len = skb->len - sizeof(*eth_hdr) + sizeof(*llc_hdr);
186 
187 	skb_push(skb, sizeof(struct ath6kl_llc_snap_hdr));
188 	datap = skb->data;
189 
190 	eth_hdr->h_proto = cpu_to_be16(new_len);
191 
192 	memcpy(datap, eth_hdr, sizeof(*eth_hdr));
193 
194 	llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap + sizeof(*eth_hdr));
195 	llc_hdr->dsap = 0xAA;
196 	llc_hdr->ssap = 0xAA;
197 	llc_hdr->cntl = 0x03;
198 	llc_hdr->org_code[0] = 0x0;
199 	llc_hdr->org_code[1] = 0x0;
200 	llc_hdr->org_code[2] = 0x0;
201 	llc_hdr->eth_type = type;
202 
203 	return 0;
204 }
205 
206 static int ath6kl_wmi_meta_add(struct wmi *wmi, struct sk_buff *skb,
207 			       u8 *version, void *tx_meta_info)
208 {
209 	struct wmi_tx_meta_v1 *v1;
210 	struct wmi_tx_meta_v2 *v2;
211 
212 	if (WARN_ON(skb == NULL || version == NULL))
213 		return -EINVAL;
214 
215 	switch (*version) {
216 	case WMI_META_VERSION_1:
217 		skb_push(skb, WMI_MAX_TX_META_SZ);
218 		v1 = (struct wmi_tx_meta_v1 *) skb->data;
219 		v1->pkt_id = 0;
220 		v1->rate_plcy_id = 0;
221 		*version = WMI_META_VERSION_1;
222 		break;
223 	case WMI_META_VERSION_2:
224 		skb_push(skb, WMI_MAX_TX_META_SZ);
225 		v2 = (struct wmi_tx_meta_v2 *) skb->data;
226 		memcpy(v2, (struct wmi_tx_meta_v2 *) tx_meta_info,
227 		       sizeof(struct wmi_tx_meta_v2));
228 		break;
229 	}
230 
231 	return 0;
232 }
233 
234 int ath6kl_wmi_data_hdr_add(struct wmi *wmi, struct sk_buff *skb,
235 			    u8 msg_type, u32 flags,
236 			    enum wmi_data_hdr_data_type data_type,
237 			    u8 meta_ver, void *tx_meta_info, u8 if_idx)
238 {
239 	struct wmi_data_hdr *data_hdr;
240 	int ret;
241 
242 	if (WARN_ON(skb == NULL || (if_idx > wmi->parent_dev->vif_max - 1)))
243 		return -EINVAL;
244 
245 	if (tx_meta_info) {
246 		ret = ath6kl_wmi_meta_add(wmi, skb, &meta_ver, tx_meta_info);
247 		if (ret)
248 			return ret;
249 	}
250 
251 	skb_push(skb, sizeof(struct wmi_data_hdr));
252 
253 	data_hdr = (struct wmi_data_hdr *)skb->data;
254 	memset(data_hdr, 0, sizeof(struct wmi_data_hdr));
255 
256 	data_hdr->info = msg_type << WMI_DATA_HDR_MSG_TYPE_SHIFT;
257 	data_hdr->info |= data_type << WMI_DATA_HDR_DATA_TYPE_SHIFT;
258 
259 	if (flags & WMI_DATA_HDR_FLAGS_MORE)
260 		data_hdr->info |= WMI_DATA_HDR_MORE;
261 
262 	if (flags & WMI_DATA_HDR_FLAGS_EOSP)
263 		data_hdr->info3 |= cpu_to_le16(WMI_DATA_HDR_EOSP);
264 
265 	data_hdr->info2 |= cpu_to_le16(meta_ver << WMI_DATA_HDR_META_SHIFT);
266 	data_hdr->info3 |= cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
267 
268 	return 0;
269 }
270 
271 u8 ath6kl_wmi_determine_user_priority(u8 *pkt, u32 layer2_pri)
272 {
273 	struct iphdr *ip_hdr = (struct iphdr *) pkt;
274 	u8 ip_pri;
275 
276 	/*
277 	 * Determine IPTOS priority
278 	 *
279 	 * IP-TOS - 8bits
280 	 *          : DSCP(6-bits) ECN(2-bits)
281 	 *          : DSCP - P2 P1 P0 X X X
282 	 * where (P2 P1 P0) form 802.1D
283 	 */
284 	ip_pri = ip_hdr->tos >> 5;
285 	ip_pri &= 0x7;
286 
287 	if ((layer2_pri & 0x7) > ip_pri)
288 		return (u8) layer2_pri & 0x7;
289 	else
290 		return ip_pri;
291 }
292 
293 u8 ath6kl_wmi_get_traffic_class(u8 user_priority)
294 {
295 	return  up_to_ac[user_priority & 0x7];
296 }
297 
298 int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, u8 if_idx,
299 				       struct sk_buff *skb,
300 				       u32 layer2_priority, bool wmm_enabled,
301 				       u8 *ac)
302 {
303 	struct wmi_data_hdr *data_hdr;
304 	struct ath6kl_llc_snap_hdr *llc_hdr;
305 	struct wmi_create_pstream_cmd cmd;
306 	u32 meta_size, hdr_size;
307 	u16 ip_type = IP_ETHERTYPE;
308 	u8 stream_exist, usr_pri;
309 	u8 traffic_class = WMM_AC_BE;
310 	u8 *datap;
311 
312 	if (WARN_ON(skb == NULL))
313 		return -EINVAL;
314 
315 	datap = skb->data;
316 	data_hdr = (struct wmi_data_hdr *) datap;
317 
318 	meta_size = ((le16_to_cpu(data_hdr->info2) >> WMI_DATA_HDR_META_SHIFT) &
319 		     WMI_DATA_HDR_META_MASK) ? WMI_MAX_TX_META_SZ : 0;
320 
321 	if (!wmm_enabled) {
322 		/* If WMM is disabled all traffic goes as BE traffic */
323 		usr_pri = 0;
324 	} else {
325 		hdr_size = sizeof(struct ethhdr);
326 
327 		llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap +
328 							 sizeof(struct
329 								wmi_data_hdr) +
330 							 meta_size + hdr_size);
331 
332 		if (llc_hdr->eth_type == htons(ip_type)) {
333 			/*
334 			 * Extract the endpoint info from the TOS field
335 			 * in the IP header.
336 			 */
337 			usr_pri =
338 			   ath6kl_wmi_determine_user_priority(((u8 *) llc_hdr) +
339 					sizeof(struct ath6kl_llc_snap_hdr),
340 					layer2_priority);
341 		} else {
342 			usr_pri = layer2_priority & 0x7;
343 		}
344 
345 		/*
346 		 * Queue the EAPOL frames in the same WMM_AC_VO queue
347 		 * as that of management frames.
348 		 */
349 		if (skb->protocol == cpu_to_be16(ETH_P_PAE))
350 			usr_pri = WMI_VOICE_USER_PRIORITY;
351 	}
352 
353 	/*
354 	 * workaround for WMM S5
355 	 *
356 	 * FIXME: wmi->traffic_class is always 100 so this test doesn't
357 	 * make sense
358 	 */
359 	if ((wmi->traffic_class == WMM_AC_VI) &&
360 	    ((usr_pri == 5) || (usr_pri == 4)))
361 		usr_pri = 1;
362 
363 	/* Convert user priority to traffic class */
364 	traffic_class = up_to_ac[usr_pri & 0x7];
365 
366 	wmi_data_hdr_set_up(data_hdr, usr_pri);
367 
368 	spin_lock_bh(&wmi->lock);
369 	stream_exist = wmi->fat_pipe_exist;
370 	spin_unlock_bh(&wmi->lock);
371 
372 	if (!(stream_exist & (1 << traffic_class))) {
373 		memset(&cmd, 0, sizeof(cmd));
374 		cmd.traffic_class = traffic_class;
375 		cmd.user_pri = usr_pri;
376 		cmd.inactivity_int =
377 			cpu_to_le32(WMI_IMPLICIT_PSTREAM_INACTIVITY_INT);
378 		/* Implicit streams are created with TSID 0xFF */
379 		cmd.tsid = WMI_IMPLICIT_PSTREAM;
380 		ath6kl_wmi_create_pstream_cmd(wmi, if_idx, &cmd);
381 	}
382 
383 	*ac = traffic_class;
384 
385 	return 0;
386 }
387 
388 int ath6kl_wmi_dot11_hdr_remove(struct wmi *wmi, struct sk_buff *skb)
389 {
390 	struct ieee80211_hdr_3addr *pwh, wh;
391 	struct ath6kl_llc_snap_hdr *llc_hdr;
392 	struct ethhdr eth_hdr;
393 	u32 hdr_size;
394 	u8 *datap;
395 	__le16 sub_type;
396 
397 	if (WARN_ON(skb == NULL))
398 		return -EINVAL;
399 
400 	datap = skb->data;
401 	pwh = (struct ieee80211_hdr_3addr *) datap;
402 
403 	sub_type = pwh->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE);
404 
405 	memcpy((u8 *) &wh, datap, sizeof(struct ieee80211_hdr_3addr));
406 
407 	/* Strip off the 802.11 header */
408 	if (sub_type == cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
409 		hdr_size = roundup(sizeof(struct ieee80211_qos_hdr),
410 				   sizeof(u32));
411 		skb_pull(skb, hdr_size);
412 	} else if (sub_type == cpu_to_le16(IEEE80211_STYPE_DATA)) {
413 		skb_pull(skb, sizeof(struct ieee80211_hdr_3addr));
414 	}
415 
416 	datap = skb->data;
417 	llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap);
418 
419 	memset(&eth_hdr, 0, sizeof(eth_hdr));
420 	eth_hdr.h_proto = llc_hdr->eth_type;
421 
422 	switch ((le16_to_cpu(wh.frame_control)) &
423 		(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
424 	case IEEE80211_FCTL_TODS:
425 		memcpy(eth_hdr.h_dest, wh.addr3, ETH_ALEN);
426 		memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
427 		break;
428 	case IEEE80211_FCTL_FROMDS:
429 		memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
430 		memcpy(eth_hdr.h_source, wh.addr3, ETH_ALEN);
431 		break;
432 	case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS:
433 		break;
434 	default:
435 		memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
436 		memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
437 		break;
438 	}
439 
440 	skb_pull(skb, sizeof(struct ath6kl_llc_snap_hdr));
441 	skb_push(skb, sizeof(eth_hdr));
442 
443 	datap = skb->data;
444 
445 	memcpy(datap, &eth_hdr, sizeof(eth_hdr));
446 
447 	return 0;
448 }
449 
450 /*
451  * Performs 802.3 to DIX encapsulation for received packets.
452  * Assumes the entire 802.3 header is contiguous.
453  */
454 int ath6kl_wmi_dot3_2_dix(struct sk_buff *skb)
455 {
456 	struct ath6kl_llc_snap_hdr *llc_hdr;
457 	struct ethhdr eth_hdr;
458 	u8 *datap;
459 
460 	if (WARN_ON(skb == NULL))
461 		return -EINVAL;
462 
463 	datap = skb->data;
464 
465 	memcpy(&eth_hdr, datap, sizeof(eth_hdr));
466 
467 	llc_hdr = (struct ath6kl_llc_snap_hdr *) (datap + sizeof(eth_hdr));
468 	eth_hdr.h_proto = llc_hdr->eth_type;
469 
470 	skb_pull(skb, sizeof(struct ath6kl_llc_snap_hdr));
471 	datap = skb->data;
472 
473 	memcpy(datap, &eth_hdr, sizeof(eth_hdr));
474 
475 	return 0;
476 }
477 
478 static int ath6kl_wmi_tx_complete_event_rx(u8 *datap, int len)
479 {
480 	struct tx_complete_msg_v1 *msg_v1;
481 	struct wmi_tx_complete_event *evt;
482 	int index;
483 	u16 size;
484 
485 	evt = (struct wmi_tx_complete_event *) datap;
486 
487 	ath6kl_dbg(ATH6KL_DBG_WMI, "comp: %d %d %d\n",
488 		   evt->num_msg, evt->msg_len, evt->msg_type);
489 
490 	for (index = 0; index < evt->num_msg; index++) {
491 		size = sizeof(struct wmi_tx_complete_event) +
492 		    (index * sizeof(struct tx_complete_msg_v1));
493 		msg_v1 = (struct tx_complete_msg_v1 *)(datap + size);
494 
495 		ath6kl_dbg(ATH6KL_DBG_WMI, "msg: %d %d %d %d\n",
496 			   msg_v1->status, msg_v1->pkt_id,
497 			   msg_v1->rate_idx, msg_v1->ack_failures);
498 	}
499 
500 	return 0;
501 }
502 
503 static int ath6kl_wmi_remain_on_chnl_event_rx(struct wmi *wmi, u8 *datap,
504 					      int len, struct ath6kl_vif *vif)
505 {
506 	struct wmi_remain_on_chnl_event *ev;
507 	u32 freq;
508 	u32 dur;
509 	struct ieee80211_channel *chan;
510 	struct ath6kl *ar = wmi->parent_dev;
511 	u32 id;
512 
513 	if (len < sizeof(*ev))
514 		return -EINVAL;
515 
516 	ev = (struct wmi_remain_on_chnl_event *) datap;
517 	freq = le32_to_cpu(ev->freq);
518 	dur = le32_to_cpu(ev->duration);
519 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl: freq=%u dur=%u\n",
520 		   freq, dur);
521 	chan = ieee80211_get_channel(ar->wiphy, freq);
522 	if (!chan) {
523 		ath6kl_dbg(ATH6KL_DBG_WMI,
524 			   "remain_on_chnl: Unknown channel (freq=%u)\n",
525 			   freq);
526 		return -EINVAL;
527 	}
528 	id = vif->last_roc_id;
529 	cfg80211_ready_on_channel(&vif->wdev, id, chan,
530 				  dur, GFP_ATOMIC);
531 
532 	return 0;
533 }
534 
535 static int ath6kl_wmi_cancel_remain_on_chnl_event_rx(struct wmi *wmi,
536 						     u8 *datap, int len,
537 						     struct ath6kl_vif *vif)
538 {
539 	struct wmi_cancel_remain_on_chnl_event *ev;
540 	u32 freq;
541 	u32 dur;
542 	struct ieee80211_channel *chan;
543 	struct ath6kl *ar = wmi->parent_dev;
544 	u32 id;
545 
546 	if (len < sizeof(*ev))
547 		return -EINVAL;
548 
549 	ev = (struct wmi_cancel_remain_on_chnl_event *) datap;
550 	freq = le32_to_cpu(ev->freq);
551 	dur = le32_to_cpu(ev->duration);
552 	ath6kl_dbg(ATH6KL_DBG_WMI,
553 		   "cancel_remain_on_chnl: freq=%u dur=%u status=%u\n",
554 		   freq, dur, ev->status);
555 	chan = ieee80211_get_channel(ar->wiphy, freq);
556 	if (!chan) {
557 		ath6kl_dbg(ATH6KL_DBG_WMI,
558 			   "cancel_remain_on_chnl: Unknown channel (freq=%u)\n",
559 			   freq);
560 		return -EINVAL;
561 	}
562 	if (vif->last_cancel_roc_id &&
563 	    vif->last_cancel_roc_id + 1 == vif->last_roc_id)
564 		id = vif->last_cancel_roc_id; /* event for cancel command */
565 	else
566 		id = vif->last_roc_id; /* timeout on uncanceled r-o-c */
567 	vif->last_cancel_roc_id = 0;
568 	cfg80211_remain_on_channel_expired(&vif->wdev, id, chan, GFP_ATOMIC);
569 
570 	return 0;
571 }
572 
573 static int ath6kl_wmi_tx_status_event_rx(struct wmi *wmi, u8 *datap, int len,
574 					 struct ath6kl_vif *vif)
575 {
576 	struct wmi_tx_status_event *ev;
577 	u32 id;
578 
579 	if (len < sizeof(*ev))
580 		return -EINVAL;
581 
582 	ev = (struct wmi_tx_status_event *) datap;
583 	id = le32_to_cpu(ev->id);
584 	ath6kl_dbg(ATH6KL_DBG_WMI, "tx_status: id=%x ack_status=%u\n",
585 		   id, ev->ack_status);
586 	if (wmi->last_mgmt_tx_frame) {
587 		cfg80211_mgmt_tx_status(&vif->wdev, id,
588 					wmi->last_mgmt_tx_frame,
589 					wmi->last_mgmt_tx_frame_len,
590 					!!ev->ack_status, GFP_ATOMIC);
591 		kfree(wmi->last_mgmt_tx_frame);
592 		wmi->last_mgmt_tx_frame = NULL;
593 		wmi->last_mgmt_tx_frame_len = 0;
594 	}
595 
596 	return 0;
597 }
598 
599 static int ath6kl_wmi_rx_probe_req_event_rx(struct wmi *wmi, u8 *datap, int len,
600 					    struct ath6kl_vif *vif)
601 {
602 	struct wmi_p2p_rx_probe_req_event *ev;
603 	u32 freq;
604 	u16 dlen;
605 
606 	if (len < sizeof(*ev))
607 		return -EINVAL;
608 
609 	ev = (struct wmi_p2p_rx_probe_req_event *) datap;
610 	freq = le32_to_cpu(ev->freq);
611 	dlen = le16_to_cpu(ev->len);
612 	if (datap + len < ev->data + dlen) {
613 		ath6kl_err("invalid wmi_p2p_rx_probe_req_event: len=%d dlen=%u\n",
614 			   len, dlen);
615 		return -EINVAL;
616 	}
617 	ath6kl_dbg(ATH6KL_DBG_WMI,
618 		   "rx_probe_req: len=%u freq=%u probe_req_report=%d\n",
619 		   dlen, freq, vif->probe_req_report);
620 
621 	if (vif->probe_req_report || vif->nw_type == AP_NETWORK)
622 		cfg80211_rx_mgmt(&vif->wdev, freq, 0, ev->data, dlen, 0);
623 
624 	return 0;
625 }
626 
627 static int ath6kl_wmi_p2p_capabilities_event_rx(u8 *datap, int len)
628 {
629 	struct wmi_p2p_capabilities_event *ev;
630 	u16 dlen;
631 
632 	if (len < sizeof(*ev))
633 		return -EINVAL;
634 
635 	ev = (struct wmi_p2p_capabilities_event *) datap;
636 	dlen = le16_to_cpu(ev->len);
637 	ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_capab: len=%u\n", dlen);
638 
639 	return 0;
640 }
641 
642 static int ath6kl_wmi_rx_action_event_rx(struct wmi *wmi, u8 *datap, int len,
643 					 struct ath6kl_vif *vif)
644 {
645 	struct wmi_rx_action_event *ev;
646 	u32 freq;
647 	u16 dlen;
648 
649 	if (len < sizeof(*ev))
650 		return -EINVAL;
651 
652 	ev = (struct wmi_rx_action_event *) datap;
653 	freq = le32_to_cpu(ev->freq);
654 	dlen = le16_to_cpu(ev->len);
655 	if (datap + len < ev->data + dlen) {
656 		ath6kl_err("invalid wmi_rx_action_event: len=%d dlen=%u\n",
657 			   len, dlen);
658 		return -EINVAL;
659 	}
660 	ath6kl_dbg(ATH6KL_DBG_WMI, "rx_action: len=%u freq=%u\n", dlen, freq);
661 	cfg80211_rx_mgmt(&vif->wdev, freq, 0, ev->data, dlen, 0);
662 
663 	return 0;
664 }
665 
666 static int ath6kl_wmi_p2p_info_event_rx(u8 *datap, int len)
667 {
668 	struct wmi_p2p_info_event *ev;
669 	u32 flags;
670 	u16 dlen;
671 
672 	if (len < sizeof(*ev))
673 		return -EINVAL;
674 
675 	ev = (struct wmi_p2p_info_event *) datap;
676 	flags = le32_to_cpu(ev->info_req_flags);
677 	dlen = le16_to_cpu(ev->len);
678 	ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: flags=%x len=%d\n", flags, dlen);
679 
680 	if (flags & P2P_FLAG_CAPABILITIES_REQ) {
681 		struct wmi_p2p_capabilities *cap;
682 		if (dlen < sizeof(*cap))
683 			return -EINVAL;
684 		cap = (struct wmi_p2p_capabilities *) ev->data;
685 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: GO Power Save = %d\n",
686 			   cap->go_power_save);
687 	}
688 
689 	if (flags & P2P_FLAG_MACADDR_REQ) {
690 		struct wmi_p2p_macaddr *mac;
691 		if (dlen < sizeof(*mac))
692 			return -EINVAL;
693 		mac = (struct wmi_p2p_macaddr *) ev->data;
694 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: MAC Address = %pM\n",
695 			   mac->mac_addr);
696 	}
697 
698 	if (flags & P2P_FLAG_HMODEL_REQ) {
699 		struct wmi_p2p_hmodel *mod;
700 		if (dlen < sizeof(*mod))
701 			return -EINVAL;
702 		mod = (struct wmi_p2p_hmodel *) ev->data;
703 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: P2P Model = %d (%s)\n",
704 			   mod->p2p_model,
705 			   mod->p2p_model ? "host" : "firmware");
706 	}
707 	return 0;
708 }
709 
710 static inline struct sk_buff *ath6kl_wmi_get_new_buf(u32 size)
711 {
712 	struct sk_buff *skb;
713 
714 	skb = ath6kl_buf_alloc(size);
715 	if (!skb)
716 		return NULL;
717 
718 	skb_put(skb, size);
719 	if (size)
720 		memset(skb->data, 0, size);
721 
722 	return skb;
723 }
724 
725 /* Send a "simple" wmi command -- one with no arguments */
726 static int ath6kl_wmi_simple_cmd(struct wmi *wmi, u8 if_idx,
727 				 enum wmi_cmd_id cmd_id)
728 {
729 	struct sk_buff *skb;
730 	int ret;
731 
732 	skb = ath6kl_wmi_get_new_buf(0);
733 	if (!skb)
734 		return -ENOMEM;
735 
736 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, cmd_id, NO_SYNC_WMIFLAG);
737 
738 	return ret;
739 }
740 
741 static int ath6kl_wmi_ready_event_rx(struct wmi *wmi, u8 *datap, int len)
742 {
743 	struct wmi_ready_event_2 *ev = (struct wmi_ready_event_2 *) datap;
744 
745 	if (len < sizeof(struct wmi_ready_event_2))
746 		return -EINVAL;
747 
748 	ath6kl_ready_event(wmi->parent_dev, ev->mac_addr,
749 			   le32_to_cpu(ev->sw_version),
750 			   le32_to_cpu(ev->abi_version), ev->phy_cap);
751 
752 	return 0;
753 }
754 
755 /*
756  * Mechanism to modify the roaming behavior in the firmware. The lower rssi
757  * at which the station has to roam can be passed with
758  * WMI_SET_LRSSI_SCAN_PARAMS. Subtract 96 from RSSI to get the signal level
759  * in dBm.
760  */
761 int ath6kl_wmi_set_roam_lrssi_cmd(struct wmi *wmi, u8 lrssi)
762 {
763 	struct sk_buff *skb;
764 	struct roam_ctrl_cmd *cmd;
765 
766 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
767 	if (!skb)
768 		return -ENOMEM;
769 
770 	cmd = (struct roam_ctrl_cmd *) skb->data;
771 
772 	cmd->info.params.lrssi_scan_period = cpu_to_le16(DEF_LRSSI_SCAN_PERIOD);
773 	cmd->info.params.lrssi_scan_threshold = a_cpu_to_sle16(lrssi +
774 						       DEF_SCAN_FOR_ROAM_INTVL);
775 	cmd->info.params.lrssi_roam_threshold = a_cpu_to_sle16(lrssi);
776 	cmd->info.params.roam_rssi_floor = DEF_LRSSI_ROAM_FLOOR;
777 	cmd->roam_ctrl = WMI_SET_LRSSI_SCAN_PARAMS;
778 
779 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
780 			    NO_SYNC_WMIFLAG);
781 }
782 
783 int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid)
784 {
785 	struct sk_buff *skb;
786 	struct roam_ctrl_cmd *cmd;
787 
788 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
789 	if (!skb)
790 		return -ENOMEM;
791 
792 	cmd = (struct roam_ctrl_cmd *) skb->data;
793 
794 	memcpy(cmd->info.bssid, bssid, ETH_ALEN);
795 	cmd->roam_ctrl = WMI_FORCE_ROAM;
796 
797 	ath6kl_dbg(ATH6KL_DBG_WMI, "force roam to %pM\n", bssid);
798 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
799 				   NO_SYNC_WMIFLAG);
800 }
801 
802 int ath6kl_wmi_ap_set_beacon_intvl_cmd(struct wmi *wmi, u8 if_idx,
803 				       u32 beacon_intvl)
804 {
805 	struct sk_buff *skb;
806 	struct set_beacon_int_cmd *cmd;
807 
808 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
809 	if (!skb)
810 		return -ENOMEM;
811 
812 	cmd = (struct set_beacon_int_cmd *) skb->data;
813 
814 	cmd->beacon_intvl = cpu_to_le32(beacon_intvl);
815 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
816 				   WMI_SET_BEACON_INT_CMDID, NO_SYNC_WMIFLAG);
817 }
818 
819 int ath6kl_wmi_ap_set_dtim_cmd(struct wmi *wmi, u8 if_idx, u32 dtim_period)
820 {
821 	struct sk_buff *skb;
822 	struct set_dtim_cmd *cmd;
823 
824 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
825 	if (!skb)
826 		return -ENOMEM;
827 
828 	cmd = (struct set_dtim_cmd *) skb->data;
829 
830 	cmd->dtim_period = cpu_to_le32(dtim_period);
831 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
832 				   WMI_AP_SET_DTIM_CMDID, NO_SYNC_WMIFLAG);
833 }
834 
835 int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode)
836 {
837 	struct sk_buff *skb;
838 	struct roam_ctrl_cmd *cmd;
839 
840 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
841 	if (!skb)
842 		return -ENOMEM;
843 
844 	cmd = (struct roam_ctrl_cmd *) skb->data;
845 
846 	cmd->info.roam_mode = mode;
847 	cmd->roam_ctrl = WMI_SET_ROAM_MODE;
848 
849 	ath6kl_dbg(ATH6KL_DBG_WMI, "set roam mode %d\n", mode);
850 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
851 				   NO_SYNC_WMIFLAG);
852 }
853 
854 static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len,
855 				       struct ath6kl_vif *vif)
856 {
857 	struct wmi_connect_event *ev;
858 	u8 *pie, *peie;
859 
860 	if (len < sizeof(struct wmi_connect_event))
861 		return -EINVAL;
862 
863 	ev = (struct wmi_connect_event *) datap;
864 
865 	if (vif->nw_type == AP_NETWORK) {
866 		/* AP mode start/STA connected event */
867 		struct net_device *dev = vif->ndev;
868 		if (memcmp(dev->dev_addr, ev->u.ap_bss.bssid, ETH_ALEN) == 0) {
869 			ath6kl_dbg(ATH6KL_DBG_WMI,
870 				   "%s: freq %d bssid %pM (AP started)\n",
871 				   __func__, le16_to_cpu(ev->u.ap_bss.ch),
872 				   ev->u.ap_bss.bssid);
873 			ath6kl_connect_ap_mode_bss(
874 				vif, le16_to_cpu(ev->u.ap_bss.ch));
875 		} else {
876 			ath6kl_dbg(ATH6KL_DBG_WMI,
877 				   "%s: aid %u mac_addr %pM auth=%u keymgmt=%u cipher=%u apsd_info=%u (STA connected)\n",
878 				   __func__, ev->u.ap_sta.aid,
879 				   ev->u.ap_sta.mac_addr,
880 				   ev->u.ap_sta.auth,
881 				   ev->u.ap_sta.keymgmt,
882 				   le16_to_cpu(ev->u.ap_sta.cipher),
883 				   ev->u.ap_sta.apsd_info);
884 
885 			ath6kl_connect_ap_mode_sta(
886 				vif, ev->u.ap_sta.aid, ev->u.ap_sta.mac_addr,
887 				ev->u.ap_sta.keymgmt,
888 				le16_to_cpu(ev->u.ap_sta.cipher),
889 				ev->u.ap_sta.auth, ev->assoc_req_len,
890 				ev->assoc_info + ev->beacon_ie_len,
891 				ev->u.ap_sta.apsd_info);
892 		}
893 		return 0;
894 	}
895 
896 	/* STA/IBSS mode connection event */
897 
898 	ath6kl_dbg(ATH6KL_DBG_WMI,
899 		   "wmi event connect freq %d bssid %pM listen_intvl %d beacon_intvl %d type %d\n",
900 		   le16_to_cpu(ev->u.sta.ch), ev->u.sta.bssid,
901 		   le16_to_cpu(ev->u.sta.listen_intvl),
902 		   le16_to_cpu(ev->u.sta.beacon_intvl),
903 		   le32_to_cpu(ev->u.sta.nw_type));
904 
905 	/* Start of assoc rsp IEs */
906 	pie = ev->assoc_info + ev->beacon_ie_len +
907 	      ev->assoc_req_len + (sizeof(u16) * 3); /* capinfo, status, aid */
908 
909 	/* End of assoc rsp IEs */
910 	peie = ev->assoc_info + ev->beacon_ie_len + ev->assoc_req_len +
911 	    ev->assoc_resp_len;
912 
913 	while (pie < peie) {
914 		switch (*pie) {
915 		case WLAN_EID_VENDOR_SPECIFIC:
916 			if (pie[1] > 3 && pie[2] == 0x00 && pie[3] == 0x50 &&
917 			    pie[4] == 0xf2 && pie[5] == WMM_OUI_TYPE) {
918 				/* WMM OUT (00:50:F2) */
919 				if (pie[1] > 5 &&
920 				    pie[6] == WMM_PARAM_OUI_SUBTYPE)
921 					wmi->is_wmm_enabled = true;
922 			}
923 			break;
924 		}
925 
926 		if (wmi->is_wmm_enabled)
927 			break;
928 
929 		pie += pie[1] + 2;
930 	}
931 
932 	ath6kl_connect_event(vif, le16_to_cpu(ev->u.sta.ch),
933 			     ev->u.sta.bssid,
934 			     le16_to_cpu(ev->u.sta.listen_intvl),
935 			     le16_to_cpu(ev->u.sta.beacon_intvl),
936 			     le32_to_cpu(ev->u.sta.nw_type),
937 			     ev->beacon_ie_len, ev->assoc_req_len,
938 			     ev->assoc_resp_len, ev->assoc_info);
939 
940 	return 0;
941 }
942 
943 static struct country_code_to_enum_rd *
944 ath6kl_regd_find_country(u16 countryCode)
945 {
946 	int i;
947 
948 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
949 		if (allCountries[i].countryCode == countryCode)
950 			return &allCountries[i];
951 	}
952 
953 	return NULL;
954 }
955 
956 static struct reg_dmn_pair_mapping *
957 ath6kl_get_regpair(u16 regdmn)
958 {
959 	int i;
960 
961 	if (regdmn == NO_ENUMRD)
962 		return NULL;
963 
964 	for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) {
965 		if (regDomainPairs[i].reg_domain == regdmn)
966 			return &regDomainPairs[i];
967 	}
968 
969 	return NULL;
970 }
971 
972 static struct country_code_to_enum_rd *
973 ath6kl_regd_find_country_by_rd(u16 regdmn)
974 {
975 	int i;
976 
977 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
978 		if (allCountries[i].regDmnEnum == regdmn)
979 			return &allCountries[i];
980 	}
981 
982 	return NULL;
983 }
984 
985 static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len)
986 {
987 	struct ath6kl_wmi_regdomain *ev;
988 	struct country_code_to_enum_rd *country = NULL;
989 	struct reg_dmn_pair_mapping *regpair = NULL;
990 	char alpha2[2];
991 	u32 reg_code;
992 
993 	ev = (struct ath6kl_wmi_regdomain *) datap;
994 	reg_code = le32_to_cpu(ev->reg_code);
995 
996 	if ((reg_code >> ATH6KL_COUNTRY_RD_SHIFT) & COUNTRY_ERD_FLAG) {
997 		country = ath6kl_regd_find_country((u16) reg_code);
998 	} else if (!(((u16) reg_code & WORLD_SKU_MASK) == WORLD_SKU_PREFIX)) {
999 		regpair = ath6kl_get_regpair((u16) reg_code);
1000 		country = ath6kl_regd_find_country_by_rd((u16) reg_code);
1001 		if (regpair)
1002 			ath6kl_dbg(ATH6KL_DBG_WMI, "Regpair used: 0x%0x\n",
1003 				   regpair->reg_domain);
1004 		else
1005 			ath6kl_warn("Regpair not found reg_code 0x%0x\n",
1006 				    reg_code);
1007 	}
1008 
1009 	if (country && wmi->parent_dev->wiphy_registered) {
1010 		alpha2[0] = country->isoName[0];
1011 		alpha2[1] = country->isoName[1];
1012 
1013 		regulatory_hint(wmi->parent_dev->wiphy, alpha2);
1014 
1015 		ath6kl_dbg(ATH6KL_DBG_WMI, "Country alpha2 being used: %c%c\n",
1016 			   alpha2[0], alpha2[1]);
1017 	}
1018 }
1019 
1020 static int ath6kl_wmi_disconnect_event_rx(struct wmi *wmi, u8 *datap, int len,
1021 					  struct ath6kl_vif *vif)
1022 {
1023 	struct wmi_disconnect_event *ev;
1024 	wmi->traffic_class = 100;
1025 
1026 	if (len < sizeof(struct wmi_disconnect_event))
1027 		return -EINVAL;
1028 
1029 	ev = (struct wmi_disconnect_event *) datap;
1030 
1031 	ath6kl_dbg(ATH6KL_DBG_WMI,
1032 		   "wmi event disconnect proto_reason %d bssid %pM wmi_reason %d assoc_resp_len %d\n",
1033 		   le16_to_cpu(ev->proto_reason_status), ev->bssid,
1034 		   ev->disconn_reason, ev->assoc_resp_len);
1035 
1036 	wmi->is_wmm_enabled = false;
1037 
1038 	ath6kl_disconnect_event(vif, ev->disconn_reason,
1039 				ev->bssid, ev->assoc_resp_len, ev->assoc_info,
1040 				le16_to_cpu(ev->proto_reason_status));
1041 
1042 	return 0;
1043 }
1044 
1045 static int ath6kl_wmi_peer_node_event_rx(struct wmi *wmi, u8 *datap, int len)
1046 {
1047 	struct wmi_peer_node_event *ev;
1048 
1049 	if (len < sizeof(struct wmi_peer_node_event))
1050 		return -EINVAL;
1051 
1052 	ev = (struct wmi_peer_node_event *) datap;
1053 
1054 	if (ev->event_code == PEER_NODE_JOIN_EVENT)
1055 		ath6kl_dbg(ATH6KL_DBG_WMI, "joined node with mac addr: %pM\n",
1056 			   ev->peer_mac_addr);
1057 	else if (ev->event_code == PEER_NODE_LEAVE_EVENT)
1058 		ath6kl_dbg(ATH6KL_DBG_WMI, "left node with mac addr: %pM\n",
1059 			   ev->peer_mac_addr);
1060 
1061 	return 0;
1062 }
1063 
1064 static int ath6kl_wmi_tkip_micerr_event_rx(struct wmi *wmi, u8 *datap, int len,
1065 					   struct ath6kl_vif *vif)
1066 {
1067 	struct wmi_tkip_micerr_event *ev;
1068 
1069 	if (len < sizeof(struct wmi_tkip_micerr_event))
1070 		return -EINVAL;
1071 
1072 	ev = (struct wmi_tkip_micerr_event *) datap;
1073 
1074 	ath6kl_tkip_micerr_event(vif, ev->key_id, ev->is_mcast);
1075 
1076 	return 0;
1077 }
1078 
1079 void ath6kl_wmi_sscan_timer(struct timer_list *t)
1080 {
1081 	struct ath6kl_vif *vif = from_timer(vif, t, sched_scan_timer);
1082 
1083 	cfg80211_sched_scan_results(vif->ar->wiphy, 0);
1084 }
1085 
1086 static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len,
1087 				       struct ath6kl_vif *vif)
1088 {
1089 	struct wmi_bss_info_hdr2 *bih;
1090 	u8 *buf;
1091 	struct ieee80211_channel *channel;
1092 	struct ath6kl *ar = wmi->parent_dev;
1093 	struct cfg80211_bss *bss;
1094 
1095 	if (len <= sizeof(struct wmi_bss_info_hdr2))
1096 		return -EINVAL;
1097 
1098 	bih = (struct wmi_bss_info_hdr2 *) datap;
1099 	buf = datap + sizeof(struct wmi_bss_info_hdr2);
1100 	len -= sizeof(struct wmi_bss_info_hdr2);
1101 
1102 	ath6kl_dbg(ATH6KL_DBG_WMI,
1103 		   "bss info evt - ch %u, snr %d, rssi %d, bssid \"%pM\" "
1104 		   "frame_type=%d\n",
1105 		   bih->ch, bih->snr, bih->snr - 95, bih->bssid,
1106 		   bih->frame_type);
1107 
1108 	if (bih->frame_type != BEACON_FTYPE &&
1109 	    bih->frame_type != PROBERESP_FTYPE)
1110 		return 0; /* Only update BSS table for now */
1111 
1112 	if (bih->frame_type == BEACON_FTYPE &&
1113 	    test_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags)) {
1114 		clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
1115 		ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1116 					 NONE_BSS_FILTER, 0);
1117 	}
1118 
1119 	channel = ieee80211_get_channel(ar->wiphy, le16_to_cpu(bih->ch));
1120 	if (channel == NULL)
1121 		return -EINVAL;
1122 
1123 	if (len < 8 + 2 + 2)
1124 		return -EINVAL;
1125 
1126 	if (bih->frame_type == BEACON_FTYPE &&
1127 	    test_bit(CONNECTED, &vif->flags) &&
1128 	    memcmp(bih->bssid, vif->bssid, ETH_ALEN) == 0) {
1129 		const u8 *tim;
1130 		tim = cfg80211_find_ie(WLAN_EID_TIM, buf + 8 + 2 + 2,
1131 				       len - 8 - 2 - 2);
1132 		if (tim && tim[1] >= 2) {
1133 			vif->assoc_bss_dtim_period = tim[3];
1134 			set_bit(DTIM_PERIOD_AVAIL, &vif->flags);
1135 		}
1136 	}
1137 
1138 	bss = cfg80211_inform_bss(ar->wiphy, channel,
1139 				  bih->frame_type == BEACON_FTYPE ?
1140 					CFG80211_BSS_FTYPE_BEACON :
1141 					CFG80211_BSS_FTYPE_PRESP,
1142 				  bih->bssid, get_unaligned_le64((__le64 *)buf),
1143 				  get_unaligned_le16(((__le16 *)buf) + 5),
1144 				  get_unaligned_le16(((__le16 *)buf) + 4),
1145 				  buf + 8 + 2 + 2, len - 8 - 2 - 2,
1146 				  (bih->snr - 95) * 100, GFP_ATOMIC);
1147 	if (bss == NULL)
1148 		return -ENOMEM;
1149 	cfg80211_put_bss(ar->wiphy, bss);
1150 
1151 	/*
1152 	 * Firmware doesn't return any event when scheduled scan has
1153 	 * finished, so we need to use a timer to find out when there are
1154 	 * no more results.
1155 	 *
1156 	 * The timer is started from the first bss info received, otherwise
1157 	 * the timer would not ever fire if the scan interval is short
1158 	 * enough.
1159 	 */
1160 	if (test_bit(SCHED_SCANNING, &vif->flags) &&
1161 	    !timer_pending(&vif->sched_scan_timer)) {
1162 		mod_timer(&vif->sched_scan_timer, jiffies +
1163 			  msecs_to_jiffies(ATH6KL_SCHED_SCAN_RESULT_DELAY));
1164 	}
1165 
1166 	return 0;
1167 }
1168 
1169 /* Inactivity timeout of a fatpipe(pstream) at the target */
1170 static int ath6kl_wmi_pstream_timeout_event_rx(struct wmi *wmi, u8 *datap,
1171 					       int len)
1172 {
1173 	struct wmi_pstream_timeout_event *ev;
1174 
1175 	if (len < sizeof(struct wmi_pstream_timeout_event))
1176 		return -EINVAL;
1177 
1178 	ev = (struct wmi_pstream_timeout_event *) datap;
1179 	if (ev->traffic_class >= WMM_NUM_AC) {
1180 		ath6kl_err("invalid traffic class: %d\n", ev->traffic_class);
1181 		return -EINVAL;
1182 	}
1183 
1184 	/*
1185 	 * When the pstream (fat pipe == AC) timesout, it means there were
1186 	 * no thinStreams within this pstream & it got implicitly created
1187 	 * due to data flow on this AC. We start the inactivity timer only
1188 	 * for implicitly created pstream. Just reset the host state.
1189 	 */
1190 	spin_lock_bh(&wmi->lock);
1191 	wmi->stream_exist_for_ac[ev->traffic_class] = 0;
1192 	wmi->fat_pipe_exist &= ~(1 << ev->traffic_class);
1193 	spin_unlock_bh(&wmi->lock);
1194 
1195 	/* Indicate inactivity to driver layer for this fatpipe (pstream) */
1196 	ath6kl_indicate_tx_activity(wmi->parent_dev, ev->traffic_class, false);
1197 
1198 	return 0;
1199 }
1200 
1201 static int ath6kl_wmi_bitrate_reply_rx(struct wmi *wmi, u8 *datap, int len)
1202 {
1203 	struct wmi_bit_rate_reply *reply;
1204 	u32 index;
1205 
1206 	if (len < sizeof(struct wmi_bit_rate_reply))
1207 		return -EINVAL;
1208 
1209 	reply = (struct wmi_bit_rate_reply *) datap;
1210 
1211 	ath6kl_dbg(ATH6KL_DBG_WMI, "rateindex %d\n", reply->rate_index);
1212 
1213 	if (reply->rate_index != (s8) RATE_AUTO) {
1214 		index = reply->rate_index & 0x7f;
1215 		if (WARN_ON_ONCE(index > (RATE_MCS_7_40 + 1)))
1216 			return -EINVAL;
1217 	}
1218 
1219 	ath6kl_wakeup_event(wmi->parent_dev);
1220 
1221 	return 0;
1222 }
1223 
1224 static int ath6kl_wmi_test_rx(struct wmi *wmi, u8 *datap, int len)
1225 {
1226 	ath6kl_tm_rx_event(wmi->parent_dev, datap, len);
1227 
1228 	return 0;
1229 }
1230 
1231 static int ath6kl_wmi_ratemask_reply_rx(struct wmi *wmi, u8 *datap, int len)
1232 {
1233 	if (len < sizeof(struct wmi_fix_rates_reply))
1234 		return -EINVAL;
1235 
1236 	ath6kl_wakeup_event(wmi->parent_dev);
1237 
1238 	return 0;
1239 }
1240 
1241 static int ath6kl_wmi_ch_list_reply_rx(struct wmi *wmi, u8 *datap, int len)
1242 {
1243 	if (len < sizeof(struct wmi_channel_list_reply))
1244 		return -EINVAL;
1245 
1246 	ath6kl_wakeup_event(wmi->parent_dev);
1247 
1248 	return 0;
1249 }
1250 
1251 static int ath6kl_wmi_tx_pwr_reply_rx(struct wmi *wmi, u8 *datap, int len)
1252 {
1253 	struct wmi_tx_pwr_reply *reply;
1254 
1255 	if (len < sizeof(struct wmi_tx_pwr_reply))
1256 		return -EINVAL;
1257 
1258 	reply = (struct wmi_tx_pwr_reply *) datap;
1259 	ath6kl_txpwr_rx_evt(wmi->parent_dev, reply->dbM);
1260 
1261 	return 0;
1262 }
1263 
1264 static int ath6kl_wmi_keepalive_reply_rx(struct wmi *wmi, u8 *datap, int len)
1265 {
1266 	if (len < sizeof(struct wmi_get_keepalive_cmd))
1267 		return -EINVAL;
1268 
1269 	ath6kl_wakeup_event(wmi->parent_dev);
1270 
1271 	return 0;
1272 }
1273 
1274 static int ath6kl_wmi_scan_complete_rx(struct wmi *wmi, u8 *datap, int len,
1275 				       struct ath6kl_vif *vif)
1276 {
1277 	struct wmi_scan_complete_event *ev;
1278 
1279 	ev = (struct wmi_scan_complete_event *) datap;
1280 
1281 	ath6kl_scan_complete_evt(vif, a_sle32_to_cpu(ev->status));
1282 	wmi->is_probe_ssid = false;
1283 
1284 	return 0;
1285 }
1286 
1287 static int ath6kl_wmi_neighbor_report_event_rx(struct wmi *wmi, u8 *datap,
1288 					       int len, struct ath6kl_vif *vif)
1289 {
1290 	struct wmi_neighbor_report_event *ev;
1291 	u8 i;
1292 
1293 	if (len < sizeof(*ev))
1294 		return -EINVAL;
1295 	ev = (struct wmi_neighbor_report_event *) datap;
1296 	if (struct_size(ev, neighbor, ev->num_neighbors) > len) {
1297 		ath6kl_dbg(ATH6KL_DBG_WMI,
1298 			   "truncated neighbor event (num=%d len=%d)\n",
1299 			   ev->num_neighbors, len);
1300 		return -EINVAL;
1301 	}
1302 	for (i = 0; i < ev->num_neighbors; i++) {
1303 		ath6kl_dbg(ATH6KL_DBG_WMI, "neighbor %d/%d - %pM 0x%x\n",
1304 			   i + 1, ev->num_neighbors, ev->neighbor[i].bssid,
1305 			   ev->neighbor[i].bss_flags);
1306 		cfg80211_pmksa_candidate_notify(vif->ndev, i,
1307 						ev->neighbor[i].bssid,
1308 						!!(ev->neighbor[i].bss_flags &
1309 						   WMI_PREAUTH_CAPABLE_BSS),
1310 						GFP_ATOMIC);
1311 	}
1312 
1313 	return 0;
1314 }
1315 
1316 /*
1317  * Target is reporting a programming error.  This is for
1318  * developer aid only.  Target only checks a few common violations
1319  * and it is responsibility of host to do all error checking.
1320  * Behavior of target after wmi error event is undefined.
1321  * A reset is recommended.
1322  */
1323 static int ath6kl_wmi_error_event_rx(struct wmi *wmi, u8 *datap, int len)
1324 {
1325 	const char *type = "unknown error";
1326 	struct wmi_cmd_error_event *ev;
1327 	ev = (struct wmi_cmd_error_event *) datap;
1328 
1329 	switch (ev->err_code) {
1330 	case INVALID_PARAM:
1331 		type = "invalid parameter";
1332 		break;
1333 	case ILLEGAL_STATE:
1334 		type = "invalid state";
1335 		break;
1336 	case INTERNAL_ERROR:
1337 		type = "internal error";
1338 		break;
1339 	}
1340 
1341 	ath6kl_dbg(ATH6KL_DBG_WMI, "programming error, cmd=%d %s\n",
1342 		   ev->cmd_id, type);
1343 
1344 	return 0;
1345 }
1346 
1347 static int ath6kl_wmi_stats_event_rx(struct wmi *wmi, u8 *datap, int len,
1348 				     struct ath6kl_vif *vif)
1349 {
1350 	ath6kl_tgt_stats_event(vif, datap, len);
1351 
1352 	return 0;
1353 }
1354 
1355 static u8 ath6kl_wmi_get_upper_threshold(s16 rssi,
1356 					 struct sq_threshold_params *sq_thresh,
1357 					 u32 size)
1358 {
1359 	u32 index;
1360 	u8 threshold = (u8) sq_thresh->upper_threshold[size - 1];
1361 
1362 	/* The list is already in sorted order. Get the next lower value */
1363 	for (index = 0; index < size; index++) {
1364 		if (rssi < sq_thresh->upper_threshold[index]) {
1365 			threshold = (u8) sq_thresh->upper_threshold[index];
1366 			break;
1367 		}
1368 	}
1369 
1370 	return threshold;
1371 }
1372 
1373 static u8 ath6kl_wmi_get_lower_threshold(s16 rssi,
1374 					 struct sq_threshold_params *sq_thresh,
1375 					 u32 size)
1376 {
1377 	u32 index;
1378 	u8 threshold = (u8) sq_thresh->lower_threshold[size - 1];
1379 
1380 	/* The list is already in sorted order. Get the next lower value */
1381 	for (index = 0; index < size; index++) {
1382 		if (rssi > sq_thresh->lower_threshold[index]) {
1383 			threshold = (u8) sq_thresh->lower_threshold[index];
1384 			break;
1385 		}
1386 	}
1387 
1388 	return threshold;
1389 }
1390 
1391 static int ath6kl_wmi_send_rssi_threshold_params(struct wmi *wmi,
1392 			struct wmi_rssi_threshold_params_cmd *rssi_cmd)
1393 {
1394 	struct sk_buff *skb;
1395 	struct wmi_rssi_threshold_params_cmd *cmd;
1396 
1397 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1398 	if (!skb)
1399 		return -ENOMEM;
1400 
1401 	cmd = (struct wmi_rssi_threshold_params_cmd *) skb->data;
1402 	memcpy(cmd, rssi_cmd, sizeof(struct wmi_rssi_threshold_params_cmd));
1403 
1404 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_RSSI_THRESHOLD_PARAMS_CMDID,
1405 				   NO_SYNC_WMIFLAG);
1406 }
1407 
1408 static int ath6kl_wmi_rssi_threshold_event_rx(struct wmi *wmi, u8 *datap,
1409 					      int len)
1410 {
1411 	struct wmi_rssi_threshold_event *reply;
1412 	struct wmi_rssi_threshold_params_cmd cmd;
1413 	struct sq_threshold_params *sq_thresh;
1414 	enum wmi_rssi_threshold_val new_threshold;
1415 	u8 upper_rssi_threshold, lower_rssi_threshold;
1416 	s16 rssi;
1417 	int ret;
1418 
1419 	if (len < sizeof(struct wmi_rssi_threshold_event))
1420 		return -EINVAL;
1421 
1422 	reply = (struct wmi_rssi_threshold_event *) datap;
1423 	new_threshold = (enum wmi_rssi_threshold_val) reply->range;
1424 	rssi = a_sle16_to_cpu(reply->rssi);
1425 
1426 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_RSSI];
1427 
1428 	/*
1429 	 * Identify the threshold breached and communicate that to the app.
1430 	 * After that install a new set of thresholds based on the signal
1431 	 * quality reported by the target
1432 	 */
1433 	if (new_threshold) {
1434 		/* Upper threshold breached */
1435 		if (rssi < sq_thresh->upper_threshold[0]) {
1436 			ath6kl_dbg(ATH6KL_DBG_WMI,
1437 				   "spurious upper rssi threshold event: %d\n",
1438 				   rssi);
1439 		} else if ((rssi < sq_thresh->upper_threshold[1]) &&
1440 			   (rssi >= sq_thresh->upper_threshold[0])) {
1441 			new_threshold = WMI_RSSI_THRESHOLD1_ABOVE;
1442 		} else if ((rssi < sq_thresh->upper_threshold[2]) &&
1443 			   (rssi >= sq_thresh->upper_threshold[1])) {
1444 			new_threshold = WMI_RSSI_THRESHOLD2_ABOVE;
1445 		} else if ((rssi < sq_thresh->upper_threshold[3]) &&
1446 			   (rssi >= sq_thresh->upper_threshold[2])) {
1447 			new_threshold = WMI_RSSI_THRESHOLD3_ABOVE;
1448 		} else if ((rssi < sq_thresh->upper_threshold[4]) &&
1449 			   (rssi >= sq_thresh->upper_threshold[3])) {
1450 			new_threshold = WMI_RSSI_THRESHOLD4_ABOVE;
1451 		} else if ((rssi < sq_thresh->upper_threshold[5]) &&
1452 			   (rssi >= sq_thresh->upper_threshold[4])) {
1453 			new_threshold = WMI_RSSI_THRESHOLD5_ABOVE;
1454 		} else if (rssi >= sq_thresh->upper_threshold[5]) {
1455 			new_threshold = WMI_RSSI_THRESHOLD6_ABOVE;
1456 		}
1457 	} else {
1458 		/* Lower threshold breached */
1459 		if (rssi > sq_thresh->lower_threshold[0]) {
1460 			ath6kl_dbg(ATH6KL_DBG_WMI,
1461 				   "spurious lower rssi threshold event: %d %d\n",
1462 				rssi, sq_thresh->lower_threshold[0]);
1463 		} else if ((rssi > sq_thresh->lower_threshold[1]) &&
1464 			   (rssi <= sq_thresh->lower_threshold[0])) {
1465 			new_threshold = WMI_RSSI_THRESHOLD6_BELOW;
1466 		} else if ((rssi > sq_thresh->lower_threshold[2]) &&
1467 			   (rssi <= sq_thresh->lower_threshold[1])) {
1468 			new_threshold = WMI_RSSI_THRESHOLD5_BELOW;
1469 		} else if ((rssi > sq_thresh->lower_threshold[3]) &&
1470 			   (rssi <= sq_thresh->lower_threshold[2])) {
1471 			new_threshold = WMI_RSSI_THRESHOLD4_BELOW;
1472 		} else if ((rssi > sq_thresh->lower_threshold[4]) &&
1473 			   (rssi <= sq_thresh->lower_threshold[3])) {
1474 			new_threshold = WMI_RSSI_THRESHOLD3_BELOW;
1475 		} else if ((rssi > sq_thresh->lower_threshold[5]) &&
1476 			   (rssi <= sq_thresh->lower_threshold[4])) {
1477 			new_threshold = WMI_RSSI_THRESHOLD2_BELOW;
1478 		} else if (rssi <= sq_thresh->lower_threshold[5]) {
1479 			new_threshold = WMI_RSSI_THRESHOLD1_BELOW;
1480 		}
1481 	}
1482 
1483 	/* Calculate and install the next set of thresholds */
1484 	lower_rssi_threshold = ath6kl_wmi_get_lower_threshold(rssi, sq_thresh,
1485 				       sq_thresh->lower_threshold_valid_count);
1486 	upper_rssi_threshold = ath6kl_wmi_get_upper_threshold(rssi, sq_thresh,
1487 				       sq_thresh->upper_threshold_valid_count);
1488 
1489 	/* Issue a wmi command to install the thresholds */
1490 	cmd.thresh_above1_val = a_cpu_to_sle16(upper_rssi_threshold);
1491 	cmd.thresh_below1_val = a_cpu_to_sle16(lower_rssi_threshold);
1492 	cmd.weight = sq_thresh->weight;
1493 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1494 
1495 	ret = ath6kl_wmi_send_rssi_threshold_params(wmi, &cmd);
1496 	if (ret) {
1497 		ath6kl_err("unable to configure rssi thresholds\n");
1498 		return -EIO;
1499 	}
1500 
1501 	return 0;
1502 }
1503 
1504 static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len,
1505 				   struct ath6kl_vif *vif)
1506 {
1507 	struct wmi_cac_event *reply;
1508 	struct ieee80211_tspec_ie *ts;
1509 	u16 active_tsids, tsinfo;
1510 	u8 tsid, index;
1511 	u8 ts_id;
1512 
1513 	if (len < sizeof(struct wmi_cac_event))
1514 		return -EINVAL;
1515 
1516 	reply = (struct wmi_cac_event *) datap;
1517 	if (reply->ac >= WMM_NUM_AC) {
1518 		ath6kl_err("invalid AC: %d\n", reply->ac);
1519 		return -EINVAL;
1520 	}
1521 
1522 	if ((reply->cac_indication == CAC_INDICATION_ADMISSION_RESP) &&
1523 	    (reply->status_code != IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED)) {
1524 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1525 		tsinfo = le16_to_cpu(ts->tsinfo);
1526 		tsid = (tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1527 			IEEE80211_WMM_IE_TSPEC_TID_MASK;
1528 
1529 		ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1530 					      reply->ac, tsid);
1531 	} else if (reply->cac_indication == CAC_INDICATION_NO_RESP) {
1532 		/*
1533 		 * Following assumes that there is only one outstanding
1534 		 * ADDTS request when this event is received
1535 		 */
1536 		spin_lock_bh(&wmi->lock);
1537 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1538 		spin_unlock_bh(&wmi->lock);
1539 
1540 		for (index = 0; index < sizeof(active_tsids) * 8; index++) {
1541 			if ((active_tsids >> index) & 1)
1542 				break;
1543 		}
1544 		if (index < (sizeof(active_tsids) * 8))
1545 			ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1546 						      reply->ac, index);
1547 	}
1548 
1549 	/*
1550 	 * Clear active tsids and Add missing handling
1551 	 * for delete qos stream from AP
1552 	 */
1553 	else if (reply->cac_indication == CAC_INDICATION_DELETE) {
1554 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1555 		tsinfo = le16_to_cpu(ts->tsinfo);
1556 		ts_id = ((tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1557 			 IEEE80211_WMM_IE_TSPEC_TID_MASK);
1558 
1559 		spin_lock_bh(&wmi->lock);
1560 		wmi->stream_exist_for_ac[reply->ac] &= ~(1 << ts_id);
1561 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1562 		spin_unlock_bh(&wmi->lock);
1563 
1564 		/* Indicate stream inactivity to driver layer only if all tsids
1565 		 * within this AC are deleted.
1566 		 */
1567 		if (!active_tsids) {
1568 			ath6kl_indicate_tx_activity(wmi->parent_dev, reply->ac,
1569 						    false);
1570 			wmi->fat_pipe_exist &= ~(1 << reply->ac);
1571 		}
1572 	}
1573 
1574 	return 0;
1575 }
1576 
1577 static int ath6kl_wmi_txe_notify_event_rx(struct wmi *wmi, u8 *datap, int len,
1578 					  struct ath6kl_vif *vif)
1579 {
1580 	struct wmi_txe_notify_event *ev;
1581 	u32 rate, pkts;
1582 
1583 	if (len < sizeof(*ev))
1584 		return -EINVAL;
1585 
1586 	if (vif->nw_type != INFRA_NETWORK ||
1587 	    !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY,
1588 		      vif->ar->fw_capabilities))
1589 		return -EOPNOTSUPP;
1590 
1591 	if (vif->sme_state != SME_CONNECTED)
1592 		return -ENOTCONN;
1593 
1594 	ev = (struct wmi_txe_notify_event *) datap;
1595 	rate = le32_to_cpu(ev->rate);
1596 	pkts = le32_to_cpu(ev->pkts);
1597 
1598 	ath6kl_dbg(ATH6KL_DBG_WMI, "TXE notify event: peer %pM rate %d%% pkts %d intvl %ds\n",
1599 		   vif->bssid, rate, pkts, vif->txe_intvl);
1600 
1601 	cfg80211_cqm_txe_notify(vif->ndev, vif->bssid, pkts,
1602 				rate, vif->txe_intvl, GFP_KERNEL);
1603 
1604 	return 0;
1605 }
1606 
1607 int ath6kl_wmi_set_txe_notify(struct wmi *wmi, u8 idx,
1608 			      u32 rate, u32 pkts, u32 intvl)
1609 {
1610 	struct sk_buff *skb;
1611 	struct wmi_txe_notify_cmd *cmd;
1612 
1613 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1614 	if (!skb)
1615 		return -ENOMEM;
1616 
1617 	cmd = (struct wmi_txe_notify_cmd *) skb->data;
1618 	cmd->rate = cpu_to_le32(rate);
1619 	cmd->pkts = cpu_to_le32(pkts);
1620 	cmd->intvl = cpu_to_le32(intvl);
1621 
1622 	return ath6kl_wmi_cmd_send(wmi, idx, skb, WMI_SET_TXE_NOTIFY_CMDID,
1623 				   NO_SYNC_WMIFLAG);
1624 }
1625 
1626 int ath6kl_wmi_set_rssi_filter_cmd(struct wmi *wmi, u8 if_idx, s8 rssi)
1627 {
1628 	struct sk_buff *skb;
1629 	struct wmi_set_rssi_filter_cmd *cmd;
1630 	int ret;
1631 
1632 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1633 	if (!skb)
1634 		return -ENOMEM;
1635 
1636 	cmd = (struct wmi_set_rssi_filter_cmd *) skb->data;
1637 	cmd->rssi = rssi;
1638 
1639 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_RSSI_FILTER_CMDID,
1640 				  NO_SYNC_WMIFLAG);
1641 	return ret;
1642 }
1643 
1644 static int ath6kl_wmi_send_snr_threshold_params(struct wmi *wmi,
1645 			struct wmi_snr_threshold_params_cmd *snr_cmd)
1646 {
1647 	struct sk_buff *skb;
1648 	struct wmi_snr_threshold_params_cmd *cmd;
1649 
1650 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1651 	if (!skb)
1652 		return -ENOMEM;
1653 
1654 	cmd = (struct wmi_snr_threshold_params_cmd *) skb->data;
1655 	memcpy(cmd, snr_cmd, sizeof(struct wmi_snr_threshold_params_cmd));
1656 
1657 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SNR_THRESHOLD_PARAMS_CMDID,
1658 				   NO_SYNC_WMIFLAG);
1659 }
1660 
1661 static int ath6kl_wmi_snr_threshold_event_rx(struct wmi *wmi, u8 *datap,
1662 					     int len)
1663 {
1664 	struct wmi_snr_threshold_event *reply;
1665 	struct sq_threshold_params *sq_thresh;
1666 	struct wmi_snr_threshold_params_cmd cmd;
1667 	enum wmi_snr_threshold_val new_threshold;
1668 	u8 upper_snr_threshold, lower_snr_threshold;
1669 	s16 snr;
1670 	int ret;
1671 
1672 	if (len < sizeof(struct wmi_snr_threshold_event))
1673 		return -EINVAL;
1674 
1675 	reply = (struct wmi_snr_threshold_event *) datap;
1676 
1677 	new_threshold = (enum wmi_snr_threshold_val) reply->range;
1678 	snr = reply->snr;
1679 
1680 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_SNR];
1681 
1682 	/*
1683 	 * Identify the threshold breached and communicate that to the app.
1684 	 * After that install a new set of thresholds based on the signal
1685 	 * quality reported by the target.
1686 	 */
1687 	if (new_threshold) {
1688 		/* Upper threshold breached */
1689 		if (snr < sq_thresh->upper_threshold[0]) {
1690 			ath6kl_dbg(ATH6KL_DBG_WMI,
1691 				   "spurious upper snr threshold event: %d\n",
1692 				   snr);
1693 		} else if ((snr < sq_thresh->upper_threshold[1]) &&
1694 			   (snr >= sq_thresh->upper_threshold[0])) {
1695 			new_threshold = WMI_SNR_THRESHOLD1_ABOVE;
1696 		} else if ((snr < sq_thresh->upper_threshold[2]) &&
1697 			   (snr >= sq_thresh->upper_threshold[1])) {
1698 			new_threshold = WMI_SNR_THRESHOLD2_ABOVE;
1699 		} else if ((snr < sq_thresh->upper_threshold[3]) &&
1700 			   (snr >= sq_thresh->upper_threshold[2])) {
1701 			new_threshold = WMI_SNR_THRESHOLD3_ABOVE;
1702 		} else if (snr >= sq_thresh->upper_threshold[3]) {
1703 			new_threshold = WMI_SNR_THRESHOLD4_ABOVE;
1704 		}
1705 	} else {
1706 		/* Lower threshold breached */
1707 		if (snr > sq_thresh->lower_threshold[0]) {
1708 			ath6kl_dbg(ATH6KL_DBG_WMI,
1709 				   "spurious lower snr threshold event: %d\n",
1710 				   sq_thresh->lower_threshold[0]);
1711 		} else if ((snr > sq_thresh->lower_threshold[1]) &&
1712 			   (snr <= sq_thresh->lower_threshold[0])) {
1713 			new_threshold = WMI_SNR_THRESHOLD4_BELOW;
1714 		} else if ((snr > sq_thresh->lower_threshold[2]) &&
1715 			   (snr <= sq_thresh->lower_threshold[1])) {
1716 			new_threshold = WMI_SNR_THRESHOLD3_BELOW;
1717 		} else if ((snr > sq_thresh->lower_threshold[3]) &&
1718 			   (snr <= sq_thresh->lower_threshold[2])) {
1719 			new_threshold = WMI_SNR_THRESHOLD2_BELOW;
1720 		} else if (snr <= sq_thresh->lower_threshold[3]) {
1721 			new_threshold = WMI_SNR_THRESHOLD1_BELOW;
1722 		}
1723 	}
1724 
1725 	/* Calculate and install the next set of thresholds */
1726 	lower_snr_threshold = ath6kl_wmi_get_lower_threshold(snr, sq_thresh,
1727 				       sq_thresh->lower_threshold_valid_count);
1728 	upper_snr_threshold = ath6kl_wmi_get_upper_threshold(snr, sq_thresh,
1729 				       sq_thresh->upper_threshold_valid_count);
1730 
1731 	/* Issue a wmi command to install the thresholds */
1732 	cmd.thresh_above1_val = upper_snr_threshold;
1733 	cmd.thresh_below1_val = lower_snr_threshold;
1734 	cmd.weight = sq_thresh->weight;
1735 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1736 
1737 	ath6kl_dbg(ATH6KL_DBG_WMI,
1738 		   "snr: %d, threshold: %d, lower: %d, upper: %d\n",
1739 		   snr, new_threshold,
1740 		   lower_snr_threshold, upper_snr_threshold);
1741 
1742 	ret = ath6kl_wmi_send_snr_threshold_params(wmi, &cmd);
1743 	if (ret) {
1744 		ath6kl_err("unable to configure snr threshold\n");
1745 		return -EIO;
1746 	}
1747 
1748 	return 0;
1749 }
1750 
1751 static int ath6kl_wmi_aplist_event_rx(struct wmi *wmi, u8 *datap, int len)
1752 {
1753 	u16 ap_info_entry_size;
1754 	struct wmi_aplist_event *ev = (struct wmi_aplist_event *) datap;
1755 	struct wmi_ap_info_v1 *ap_info_v1;
1756 	u8 index;
1757 
1758 	if (len < sizeof(struct wmi_aplist_event) ||
1759 	    ev->ap_list_ver != APLIST_VER1)
1760 		return -EINVAL;
1761 
1762 	ap_info_entry_size = sizeof(struct wmi_ap_info_v1);
1763 	ap_info_v1 = (struct wmi_ap_info_v1 *) ev->ap_list;
1764 
1765 	ath6kl_dbg(ATH6KL_DBG_WMI,
1766 		   "number of APs in aplist event: %d\n", ev->num_ap);
1767 
1768 	if (len < (int) (sizeof(struct wmi_aplist_event) +
1769 			 (ev->num_ap - 1) * ap_info_entry_size))
1770 		return -EINVAL;
1771 
1772 	/* AP list version 1 contents */
1773 	for (index = 0; index < ev->num_ap; index++) {
1774 		ath6kl_dbg(ATH6KL_DBG_WMI, "AP#%d BSSID %pM Channel %d\n",
1775 			   index, ap_info_v1->bssid, ap_info_v1->channel);
1776 		ap_info_v1++;
1777 	}
1778 
1779 	return 0;
1780 }
1781 
1782 int ath6kl_wmi_cmd_send(struct wmi *wmi, u8 if_idx, struct sk_buff *skb,
1783 			enum wmi_cmd_id cmd_id, enum wmi_sync_flag sync_flag)
1784 {
1785 	struct wmi_cmd_hdr *cmd_hdr;
1786 	enum htc_endpoint_id ep_id = wmi->ep_id;
1787 	int ret;
1788 	u16 info1;
1789 
1790 	if (WARN_ON(skb == NULL ||
1791 		    (if_idx > (wmi->parent_dev->vif_max - 1)))) {
1792 		dev_kfree_skb(skb);
1793 		return -EINVAL;
1794 	}
1795 
1796 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi tx id %d len %d flag %d\n",
1797 		   cmd_id, skb->len, sync_flag);
1798 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi tx ",
1799 			skb->data, skb->len);
1800 
1801 	if (sync_flag >= END_WMIFLAG) {
1802 		dev_kfree_skb(skb);
1803 		return -EINVAL;
1804 	}
1805 
1806 	if ((sync_flag == SYNC_BEFORE_WMIFLAG) ||
1807 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1808 		/*
1809 		 * Make sure all data currently queued is transmitted before
1810 		 * the cmd execution.  Establish a new sync point.
1811 		 */
1812 		ath6kl_wmi_sync_point(wmi, if_idx);
1813 	}
1814 
1815 	skb_push(skb, sizeof(struct wmi_cmd_hdr));
1816 
1817 	cmd_hdr = (struct wmi_cmd_hdr *) skb->data;
1818 	cmd_hdr->cmd_id = cpu_to_le16(cmd_id);
1819 	info1 = if_idx & WMI_CMD_HDR_IF_ID_MASK;
1820 	cmd_hdr->info1 = cpu_to_le16(info1);
1821 
1822 	/* Only for OPT_TX_CMD, use BE endpoint. */
1823 	if (cmd_id == WMI_OPT_TX_FRAME_CMDID) {
1824 		ret = ath6kl_wmi_data_hdr_add(wmi, skb, OPT_MSGTYPE, false,
1825 				WMI_DATA_HDR_DATA_TYPE_802_3, 0, NULL, if_idx);
1826 		if (ret) {
1827 			dev_kfree_skb(skb);
1828 			return ret;
1829 		}
1830 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev, WMM_AC_BE);
1831 	}
1832 
1833 	ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
1834 
1835 	if ((sync_flag == SYNC_AFTER_WMIFLAG) ||
1836 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1837 		/*
1838 		 * Make sure all new data queued waits for the command to
1839 		 * execute. Establish a new sync point.
1840 		 */
1841 		ath6kl_wmi_sync_point(wmi, if_idx);
1842 	}
1843 
1844 	return 0;
1845 }
1846 
1847 int ath6kl_wmi_connect_cmd(struct wmi *wmi, u8 if_idx,
1848 			   enum network_type nw_type,
1849 			   enum dot11_auth_mode dot11_auth_mode,
1850 			   enum auth_mode auth_mode,
1851 			   enum ath6kl_crypto_type pairwise_crypto,
1852 			   u8 pairwise_crypto_len,
1853 			   enum ath6kl_crypto_type group_crypto,
1854 			   u8 group_crypto_len, int ssid_len, u8 *ssid,
1855 			   u8 *bssid, u16 channel, u32 ctrl_flags,
1856 			   u8 nw_subtype)
1857 {
1858 	struct sk_buff *skb;
1859 	struct wmi_connect_cmd *cc;
1860 	int ret;
1861 
1862 	ath6kl_dbg(ATH6KL_DBG_WMI,
1863 		   "wmi connect bssid %pM freq %d flags 0x%x ssid_len %d "
1864 		   "type %d dot11_auth %d auth %d pairwise %d group %d\n",
1865 		   bssid, channel, ctrl_flags, ssid_len, nw_type,
1866 		   dot11_auth_mode, auth_mode, pairwise_crypto, group_crypto);
1867 	ath6kl_dbg_dump(ATH6KL_DBG_WMI, NULL, "ssid ", ssid, ssid_len);
1868 
1869 	wmi->traffic_class = 100;
1870 
1871 	if ((pairwise_crypto == NONE_CRYPT) && (group_crypto != NONE_CRYPT))
1872 		return -EINVAL;
1873 
1874 	if ((pairwise_crypto != NONE_CRYPT) && (group_crypto == NONE_CRYPT))
1875 		return -EINVAL;
1876 
1877 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_connect_cmd));
1878 	if (!skb)
1879 		return -ENOMEM;
1880 
1881 	cc = (struct wmi_connect_cmd *) skb->data;
1882 
1883 	if (ssid_len)
1884 		memcpy(cc->ssid, ssid, ssid_len);
1885 
1886 	cc->ssid_len = ssid_len;
1887 	cc->nw_type = nw_type;
1888 	cc->dot11_auth_mode = dot11_auth_mode;
1889 	cc->auth_mode = auth_mode;
1890 	cc->prwise_crypto_type = pairwise_crypto;
1891 	cc->prwise_crypto_len = pairwise_crypto_len;
1892 	cc->grp_crypto_type = group_crypto;
1893 	cc->grp_crypto_len = group_crypto_len;
1894 	cc->ch = cpu_to_le16(channel);
1895 	cc->ctrl_flags = cpu_to_le32(ctrl_flags);
1896 	cc->nw_subtype = nw_subtype;
1897 
1898 	if (bssid != NULL)
1899 		memcpy(cc->bssid, bssid, ETH_ALEN);
1900 
1901 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CONNECT_CMDID,
1902 				  NO_SYNC_WMIFLAG);
1903 
1904 	return ret;
1905 }
1906 
1907 int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 if_idx, u8 *bssid,
1908 			     u16 channel)
1909 {
1910 	struct sk_buff *skb;
1911 	struct wmi_reconnect_cmd *cc;
1912 	int ret;
1913 
1914 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi reconnect bssid %pM freq %d\n",
1915 		   bssid, channel);
1916 
1917 	wmi->traffic_class = 100;
1918 
1919 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_reconnect_cmd));
1920 	if (!skb)
1921 		return -ENOMEM;
1922 
1923 	cc = (struct wmi_reconnect_cmd *) skb->data;
1924 	cc->channel = cpu_to_le16(channel);
1925 
1926 	if (bssid != NULL)
1927 		memcpy(cc->bssid, bssid, ETH_ALEN);
1928 
1929 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RECONNECT_CMDID,
1930 				  NO_SYNC_WMIFLAG);
1931 
1932 	return ret;
1933 }
1934 
1935 int ath6kl_wmi_disconnect_cmd(struct wmi *wmi, u8 if_idx)
1936 {
1937 	int ret;
1938 
1939 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi disconnect\n");
1940 
1941 	wmi->traffic_class = 100;
1942 
1943 	/* Disconnect command does not need to do a SYNC before. */
1944 	ret = ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_DISCONNECT_CMDID);
1945 
1946 	return ret;
1947 }
1948 
1949 /* ath6kl_wmi_start_scan_cmd is to be deprecated. Use
1950  * ath6kl_wmi_begin_scan_cmd instead. The new function supports P2P
1951  * mgmt operations using station interface.
1952  */
1953 static int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx,
1954 				    enum wmi_scan_type scan_type,
1955 				    u32 force_fgscan, u32 is_legacy,
1956 				    u32 home_dwell_time,
1957 				    u32 force_scan_interval,
1958 				    s8 num_chan, u16 *ch_list)
1959 {
1960 	struct sk_buff *skb;
1961 	struct wmi_start_scan_cmd *sc;
1962 	s8 size;
1963 	int i, ret;
1964 
1965 	size = sizeof(struct wmi_start_scan_cmd);
1966 
1967 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
1968 		return -EINVAL;
1969 
1970 	if (num_chan > WMI_MAX_CHANNELS)
1971 		return -EINVAL;
1972 
1973 	if (num_chan)
1974 		size += sizeof(u16) * (num_chan - 1);
1975 
1976 	skb = ath6kl_wmi_get_new_buf(size);
1977 	if (!skb)
1978 		return -ENOMEM;
1979 
1980 	sc = (struct wmi_start_scan_cmd *) skb->data;
1981 	sc->scan_type = scan_type;
1982 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
1983 	sc->is_legacy = cpu_to_le32(is_legacy);
1984 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
1985 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
1986 	sc->num_ch = num_chan;
1987 
1988 	for (i = 0; i < num_chan; i++)
1989 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
1990 
1991 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_START_SCAN_CMDID,
1992 				  NO_SYNC_WMIFLAG);
1993 
1994 	return ret;
1995 }
1996 
1997 /*
1998  * beginscan supports (compared to old startscan) P2P mgmt operations using
1999  * station interface, send additional information like supported rates to
2000  * advertise and xmit rates for probe requests
2001  */
2002 int ath6kl_wmi_beginscan_cmd(struct wmi *wmi, u8 if_idx,
2003 			     enum wmi_scan_type scan_type,
2004 			     u32 force_fgscan, u32 is_legacy,
2005 			     u32 home_dwell_time, u32 force_scan_interval,
2006 			     s8 num_chan, u16 *ch_list, u32 no_cck, u32 *rates)
2007 {
2008 	struct ieee80211_supported_band *sband;
2009 	struct sk_buff *skb;
2010 	struct wmi_begin_scan_cmd *sc;
2011 	s8 size, *supp_rates;
2012 	int i, band, ret;
2013 	struct ath6kl *ar = wmi->parent_dev;
2014 	int num_rates;
2015 	u32 ratemask;
2016 
2017 	if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
2018 		      ar->fw_capabilities)) {
2019 		return ath6kl_wmi_startscan_cmd(wmi, if_idx,
2020 						scan_type, force_fgscan,
2021 						is_legacy, home_dwell_time,
2022 						force_scan_interval,
2023 						num_chan, ch_list);
2024 	}
2025 
2026 	size = sizeof(struct wmi_begin_scan_cmd);
2027 
2028 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
2029 		return -EINVAL;
2030 
2031 	if (num_chan > WMI_MAX_CHANNELS)
2032 		return -EINVAL;
2033 
2034 	if (num_chan)
2035 		size += sizeof(u16) * (num_chan - 1);
2036 
2037 	skb = ath6kl_wmi_get_new_buf(size);
2038 	if (!skb)
2039 		return -ENOMEM;
2040 
2041 	sc = (struct wmi_begin_scan_cmd *) skb->data;
2042 	sc->scan_type = scan_type;
2043 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
2044 	sc->is_legacy = cpu_to_le32(is_legacy);
2045 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
2046 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
2047 	sc->no_cck = cpu_to_le32(no_cck);
2048 	sc->num_ch = num_chan;
2049 
2050 	for (band = 0; band < NUM_NL80211_BANDS; band++) {
2051 		sband = ar->wiphy->bands[band];
2052 
2053 		if (!sband)
2054 			continue;
2055 
2056 		if (WARN_ON(band >= ATH6KL_NUM_BANDS))
2057 			break;
2058 
2059 		ratemask = rates[band];
2060 		supp_rates = sc->supp_rates[band].rates;
2061 		num_rates = 0;
2062 
2063 		for (i = 0; i < sband->n_bitrates; i++) {
2064 			if ((BIT(i) & ratemask) == 0)
2065 				continue; /* skip rate */
2066 			supp_rates[num_rates++] =
2067 			    (u8) (sband->bitrates[i].bitrate / 5);
2068 		}
2069 		sc->supp_rates[band].nrates = num_rates;
2070 	}
2071 
2072 	for (i = 0; i < num_chan; i++)
2073 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
2074 
2075 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_BEGIN_SCAN_CMDID,
2076 				  NO_SYNC_WMIFLAG);
2077 
2078 	return ret;
2079 }
2080 
2081 int ath6kl_wmi_enable_sched_scan_cmd(struct wmi *wmi, u8 if_idx, bool enable)
2082 {
2083 	struct sk_buff *skb;
2084 	struct wmi_enable_sched_scan_cmd *sc;
2085 	int ret;
2086 
2087 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2088 	if (!skb)
2089 		return -ENOMEM;
2090 
2091 	ath6kl_dbg(ATH6KL_DBG_WMI, "%s scheduled scan on vif %d\n",
2092 		   enable ? "enabling" : "disabling", if_idx);
2093 	sc = (struct wmi_enable_sched_scan_cmd *) skb->data;
2094 	sc->enable = enable ? 1 : 0;
2095 
2096 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2097 				  WMI_ENABLE_SCHED_SCAN_CMDID,
2098 				  NO_SYNC_WMIFLAG);
2099 	return ret;
2100 }
2101 
2102 int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u8 if_idx,
2103 			      u16 fg_start_sec,
2104 			      u16 fg_end_sec, u16 bg_sec,
2105 			      u16 minact_chdw_msec, u16 maxact_chdw_msec,
2106 			      u16 pas_chdw_msec, u8 short_scan_ratio,
2107 			      u8 scan_ctrl_flag, u32 max_dfsch_act_time,
2108 			      u16 maxact_scan_per_ssid)
2109 {
2110 	struct sk_buff *skb;
2111 	struct wmi_scan_params_cmd *sc;
2112 	int ret;
2113 
2114 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2115 	if (!skb)
2116 		return -ENOMEM;
2117 
2118 	sc = (struct wmi_scan_params_cmd *) skb->data;
2119 	sc->fg_start_period = cpu_to_le16(fg_start_sec);
2120 	sc->fg_end_period = cpu_to_le16(fg_end_sec);
2121 	sc->bg_period = cpu_to_le16(bg_sec);
2122 	sc->minact_chdwell_time = cpu_to_le16(minact_chdw_msec);
2123 	sc->maxact_chdwell_time = cpu_to_le16(maxact_chdw_msec);
2124 	sc->pas_chdwell_time = cpu_to_le16(pas_chdw_msec);
2125 	sc->short_scan_ratio = short_scan_ratio;
2126 	sc->scan_ctrl_flags = scan_ctrl_flag;
2127 	sc->max_dfsch_act_time = cpu_to_le32(max_dfsch_act_time);
2128 	sc->maxact_scan_per_ssid = cpu_to_le16(maxact_scan_per_ssid);
2129 
2130 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_SCAN_PARAMS_CMDID,
2131 				  NO_SYNC_WMIFLAG);
2132 	return ret;
2133 }
2134 
2135 int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 if_idx, u8 filter, u32 ie_mask)
2136 {
2137 	struct sk_buff *skb;
2138 	struct wmi_bss_filter_cmd *cmd;
2139 	int ret;
2140 
2141 	if (filter >= LAST_BSS_FILTER)
2142 		return -EINVAL;
2143 
2144 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2145 	if (!skb)
2146 		return -ENOMEM;
2147 
2148 	cmd = (struct wmi_bss_filter_cmd *) skb->data;
2149 	cmd->bss_filter = filter;
2150 	cmd->ie_mask = cpu_to_le32(ie_mask);
2151 
2152 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BSS_FILTER_CMDID,
2153 				  NO_SYNC_WMIFLAG);
2154 	return ret;
2155 }
2156 
2157 int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 if_idx, u8 index, u8 flag,
2158 			      u8 ssid_len, u8 *ssid)
2159 {
2160 	struct sk_buff *skb;
2161 	struct wmi_probed_ssid_cmd *cmd;
2162 	int ret;
2163 
2164 	if (index >= MAX_PROBED_SSIDS)
2165 		return -EINVAL;
2166 
2167 	if (ssid_len > sizeof(cmd->ssid))
2168 		return -EINVAL;
2169 
2170 	if ((flag & (DISABLE_SSID_FLAG | ANY_SSID_FLAG)) && (ssid_len > 0))
2171 		return -EINVAL;
2172 
2173 	if ((flag & SPECIFIC_SSID_FLAG) && !ssid_len)
2174 		return -EINVAL;
2175 
2176 	if (flag & SPECIFIC_SSID_FLAG)
2177 		wmi->is_probe_ssid = true;
2178 
2179 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2180 	if (!skb)
2181 		return -ENOMEM;
2182 
2183 	cmd = (struct wmi_probed_ssid_cmd *) skb->data;
2184 	cmd->entry_index = index;
2185 	cmd->flag = flag;
2186 	cmd->ssid_len = ssid_len;
2187 	memcpy(cmd->ssid, ssid, ssid_len);
2188 
2189 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PROBED_SSID_CMDID,
2190 				  NO_SYNC_WMIFLAG);
2191 	return ret;
2192 }
2193 
2194 int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u8 if_idx,
2195 				  u16 listen_interval,
2196 				  u16 listen_beacons)
2197 {
2198 	struct sk_buff *skb;
2199 	struct wmi_listen_int_cmd *cmd;
2200 	int ret;
2201 
2202 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2203 	if (!skb)
2204 		return -ENOMEM;
2205 
2206 	cmd = (struct wmi_listen_int_cmd *) skb->data;
2207 	cmd->listen_intvl = cpu_to_le16(listen_interval);
2208 	cmd->num_beacons = cpu_to_le16(listen_beacons);
2209 
2210 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LISTEN_INT_CMDID,
2211 				  NO_SYNC_WMIFLAG);
2212 	return ret;
2213 }
2214 
2215 int ath6kl_wmi_bmisstime_cmd(struct wmi *wmi, u8 if_idx,
2216 			     u16 bmiss_time, u16 num_beacons)
2217 {
2218 	struct sk_buff *skb;
2219 	struct wmi_bmiss_time_cmd *cmd;
2220 	int ret;
2221 
2222 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2223 	if (!skb)
2224 		return -ENOMEM;
2225 
2226 	cmd = (struct wmi_bmiss_time_cmd *) skb->data;
2227 	cmd->bmiss_time = cpu_to_le16(bmiss_time);
2228 	cmd->num_beacons = cpu_to_le16(num_beacons);
2229 
2230 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BMISS_TIME_CMDID,
2231 				  NO_SYNC_WMIFLAG);
2232 	return ret;
2233 }
2234 
2235 int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 if_idx, u8 pwr_mode)
2236 {
2237 	struct sk_buff *skb;
2238 	struct wmi_power_mode_cmd *cmd;
2239 	int ret;
2240 
2241 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2242 	if (!skb)
2243 		return -ENOMEM;
2244 
2245 	cmd = (struct wmi_power_mode_cmd *) skb->data;
2246 	cmd->pwr_mode = pwr_mode;
2247 	wmi->pwr_mode = pwr_mode;
2248 
2249 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_MODE_CMDID,
2250 				  NO_SYNC_WMIFLAG);
2251 	return ret;
2252 }
2253 
2254 int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u8 if_idx, u16 idle_period,
2255 			    u16 ps_poll_num, u16 dtim_policy,
2256 			    u16 tx_wakeup_policy, u16 num_tx_to_wakeup,
2257 			    u16 ps_fail_event_policy)
2258 {
2259 	struct sk_buff *skb;
2260 	struct wmi_power_params_cmd *pm;
2261 	int ret;
2262 
2263 	skb = ath6kl_wmi_get_new_buf(sizeof(*pm));
2264 	if (!skb)
2265 		return -ENOMEM;
2266 
2267 	pm = (struct wmi_power_params_cmd *)skb->data;
2268 	pm->idle_period = cpu_to_le16(idle_period);
2269 	pm->pspoll_number = cpu_to_le16(ps_poll_num);
2270 	pm->dtim_policy = cpu_to_le16(dtim_policy);
2271 	pm->tx_wakeup_policy = cpu_to_le16(tx_wakeup_policy);
2272 	pm->num_tx_to_wakeup = cpu_to_le16(num_tx_to_wakeup);
2273 	pm->ps_fail_event_policy = cpu_to_le16(ps_fail_event_policy);
2274 
2275 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_PARAMS_CMDID,
2276 				  NO_SYNC_WMIFLAG);
2277 	return ret;
2278 }
2279 
2280 int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 if_idx, u8 timeout)
2281 {
2282 	struct sk_buff *skb;
2283 	struct wmi_disc_timeout_cmd *cmd;
2284 	int ret;
2285 
2286 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2287 	if (!skb)
2288 		return -ENOMEM;
2289 
2290 	cmd = (struct wmi_disc_timeout_cmd *) skb->data;
2291 	cmd->discon_timeout = timeout;
2292 
2293 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_DISC_TIMEOUT_CMDID,
2294 				  NO_SYNC_WMIFLAG);
2295 
2296 	if (ret == 0)
2297 		ath6kl_debug_set_disconnect_timeout(wmi->parent_dev, timeout);
2298 
2299 	return ret;
2300 }
2301 
2302 int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index,
2303 			  enum ath6kl_crypto_type key_type,
2304 			  u8 key_usage, u8 key_len,
2305 			  u8 *key_rsc, unsigned int key_rsc_len,
2306 			  u8 *key_material,
2307 			  u8 key_op_ctrl, u8 *mac_addr,
2308 			  enum wmi_sync_flag sync_flag)
2309 {
2310 	struct sk_buff *skb;
2311 	struct wmi_add_cipher_key_cmd *cmd;
2312 	int ret;
2313 
2314 	ath6kl_dbg(ATH6KL_DBG_WMI,
2315 		   "addkey cmd: key_index=%u key_type=%d key_usage=%d key_len=%d key_op_ctrl=%d\n",
2316 		   key_index, key_type, key_usage, key_len, key_op_ctrl);
2317 
2318 	if ((key_index > WMI_MAX_KEY_INDEX) || (key_len > WMI_MAX_KEY_LEN) ||
2319 	    (key_material == NULL) || key_rsc_len > 8)
2320 		return -EINVAL;
2321 
2322 	if ((WEP_CRYPT != key_type) && (NULL == key_rsc))
2323 		return -EINVAL;
2324 
2325 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2326 	if (!skb)
2327 		return -ENOMEM;
2328 
2329 	cmd = (struct wmi_add_cipher_key_cmd *) skb->data;
2330 	cmd->key_index = key_index;
2331 	cmd->key_type = key_type;
2332 	cmd->key_usage = key_usage;
2333 	cmd->key_len = key_len;
2334 	memcpy(cmd->key, key_material, key_len);
2335 
2336 	if (key_rsc != NULL)
2337 		memcpy(cmd->key_rsc, key_rsc, key_rsc_len);
2338 
2339 	cmd->key_op_ctrl = key_op_ctrl;
2340 
2341 	if (mac_addr)
2342 		memcpy(cmd->key_mac_addr, mac_addr, ETH_ALEN);
2343 
2344 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_CIPHER_KEY_CMDID,
2345 				  sync_flag);
2346 
2347 	return ret;
2348 }
2349 
2350 int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 if_idx, const u8 *krk)
2351 {
2352 	struct sk_buff *skb;
2353 	struct wmi_add_krk_cmd *cmd;
2354 	int ret;
2355 
2356 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2357 	if (!skb)
2358 		return -ENOMEM;
2359 
2360 	cmd = (struct wmi_add_krk_cmd *) skb->data;
2361 	memcpy(cmd->krk, krk, WMI_KRK_LEN);
2362 
2363 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_KRK_CMDID,
2364 				  NO_SYNC_WMIFLAG);
2365 
2366 	return ret;
2367 }
2368 
2369 int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index)
2370 {
2371 	struct sk_buff *skb;
2372 	struct wmi_delete_cipher_key_cmd *cmd;
2373 	int ret;
2374 
2375 	if (key_index > WMI_MAX_KEY_INDEX)
2376 		return -EINVAL;
2377 
2378 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2379 	if (!skb)
2380 		return -ENOMEM;
2381 
2382 	cmd = (struct wmi_delete_cipher_key_cmd *) skb->data;
2383 	cmd->key_index = key_index;
2384 
2385 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_CIPHER_KEY_CMDID,
2386 				  NO_SYNC_WMIFLAG);
2387 
2388 	return ret;
2389 }
2390 
2391 int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, u8 if_idx, const u8 *bssid,
2392 			    const u8 *pmkid, bool set)
2393 {
2394 	struct sk_buff *skb;
2395 	struct wmi_setpmkid_cmd *cmd;
2396 	int ret;
2397 
2398 	if (bssid == NULL)
2399 		return -EINVAL;
2400 
2401 	if (set && pmkid == NULL)
2402 		return -EINVAL;
2403 
2404 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2405 	if (!skb)
2406 		return -ENOMEM;
2407 
2408 	cmd = (struct wmi_setpmkid_cmd *) skb->data;
2409 	memcpy(cmd->bssid, bssid, ETH_ALEN);
2410 	if (set) {
2411 		memcpy(cmd->pmkid, pmkid, sizeof(cmd->pmkid));
2412 		cmd->enable = PMKID_ENABLE;
2413 	} else {
2414 		memset(cmd->pmkid, 0, sizeof(cmd->pmkid));
2415 		cmd->enable = PMKID_DISABLE;
2416 	}
2417 
2418 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PMKID_CMDID,
2419 				  NO_SYNC_WMIFLAG);
2420 
2421 	return ret;
2422 }
2423 
2424 static int ath6kl_wmi_data_sync_send(struct wmi *wmi, struct sk_buff *skb,
2425 			      enum htc_endpoint_id ep_id, u8 if_idx)
2426 {
2427 	struct wmi_data_hdr *data_hdr;
2428 	int ret;
2429 
2430 	if (WARN_ON(skb == NULL || ep_id == wmi->ep_id)) {
2431 		dev_kfree_skb(skb);
2432 		return -EINVAL;
2433 	}
2434 
2435 	skb_push(skb, sizeof(struct wmi_data_hdr));
2436 
2437 	data_hdr = (struct wmi_data_hdr *) skb->data;
2438 	data_hdr->info = SYNC_MSGTYPE << WMI_DATA_HDR_MSG_TYPE_SHIFT;
2439 	data_hdr->info3 = cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
2440 
2441 	ret = ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
2442 
2443 	return ret;
2444 }
2445 
2446 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx)
2447 {
2448 	struct sk_buff *skb;
2449 	struct wmi_sync_cmd *cmd;
2450 	struct wmi_data_sync_bufs data_sync_bufs[WMM_NUM_AC];
2451 	enum htc_endpoint_id ep_id;
2452 	u8 index, num_pri_streams = 0;
2453 	int ret = 0;
2454 
2455 	memset(data_sync_bufs, 0, sizeof(data_sync_bufs));
2456 
2457 	spin_lock_bh(&wmi->lock);
2458 
2459 	for (index = 0; index < WMM_NUM_AC; index++) {
2460 		if (wmi->fat_pipe_exist & (1 << index)) {
2461 			num_pri_streams++;
2462 			data_sync_bufs[num_pri_streams - 1].traffic_class =
2463 			    index;
2464 		}
2465 	}
2466 
2467 	spin_unlock_bh(&wmi->lock);
2468 
2469 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2470 	if (!skb)
2471 		return -ENOMEM;
2472 
2473 	cmd = (struct wmi_sync_cmd *) skb->data;
2474 
2475 	/*
2476 	 * In the SYNC cmd sent on the control Ep, send a bitmap
2477 	 * of the data eps on which the Data Sync will be sent
2478 	 */
2479 	cmd->data_sync_map = wmi->fat_pipe_exist;
2480 
2481 	for (index = 0; index < num_pri_streams; index++) {
2482 		data_sync_bufs[index].skb = ath6kl_buf_alloc(0);
2483 		if (data_sync_bufs[index].skb == NULL) {
2484 			ret = -ENOMEM;
2485 			break;
2486 		}
2487 	}
2488 
2489 	/*
2490 	 * If buffer allocation for any of the dataSync fails,
2491 	 * then do not send the Synchronize cmd on the control ep
2492 	 */
2493 	if (ret)
2494 		goto free_cmd_skb;
2495 
2496 	/*
2497 	 * Send sync cmd followed by sync data messages on all
2498 	 * endpoints being used
2499 	 */
2500 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SYNCHRONIZE_CMDID,
2501 				  NO_SYNC_WMIFLAG);
2502 
2503 	if (ret)
2504 		goto free_data_skb;
2505 
2506 	for (index = 0; index < num_pri_streams; index++) {
2507 		if (WARN_ON(!data_sync_bufs[index].skb)) {
2508 			ret = -ENOMEM;
2509 			goto free_data_skb;
2510 		}
2511 
2512 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev,
2513 					       data_sync_bufs[index].
2514 					       traffic_class);
2515 		ret =
2516 		    ath6kl_wmi_data_sync_send(wmi, data_sync_bufs[index].skb,
2517 					      ep_id, if_idx);
2518 
2519 		data_sync_bufs[index].skb = NULL;
2520 
2521 		if (ret)
2522 			goto free_data_skb;
2523 	}
2524 
2525 	return 0;
2526 
2527 free_cmd_skb:
2528 	/* free up any resources left over (possibly due to an error) */
2529 	dev_kfree_skb(skb);
2530 
2531 free_data_skb:
2532 	for (index = 0; index < num_pri_streams; index++)
2533 		dev_kfree_skb((struct sk_buff *)data_sync_bufs[index].skb);
2534 
2535 	return ret;
2536 }
2537 
2538 int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, u8 if_idx,
2539 				  struct wmi_create_pstream_cmd *params)
2540 {
2541 	struct sk_buff *skb;
2542 	struct wmi_create_pstream_cmd *cmd;
2543 	u8 fatpipe_exist_for_ac = 0;
2544 	s32 min_phy = 0;
2545 	s32 nominal_phy = 0;
2546 	int ret;
2547 
2548 	if (!((params->user_pri <= 0x7) &&
2549 	      (up_to_ac[params->user_pri & 0x7] == params->traffic_class) &&
2550 	      (params->traffic_direc == UPLINK_TRAFFIC ||
2551 	       params->traffic_direc == DNLINK_TRAFFIC ||
2552 	       params->traffic_direc == BIDIR_TRAFFIC) &&
2553 	      (params->traffic_type == TRAFFIC_TYPE_APERIODIC ||
2554 	       params->traffic_type == TRAFFIC_TYPE_PERIODIC) &&
2555 	      (params->voice_psc_cap == DISABLE_FOR_THIS_AC ||
2556 	       params->voice_psc_cap == ENABLE_FOR_THIS_AC ||
2557 	       params->voice_psc_cap == ENABLE_FOR_ALL_AC) &&
2558 	      (params->tsid == WMI_IMPLICIT_PSTREAM ||
2559 	       params->tsid <= WMI_MAX_THINSTREAM))) {
2560 		return -EINVAL;
2561 	}
2562 
2563 	/*
2564 	 * Check nominal PHY rate is >= minimalPHY,
2565 	 * so that DUT can allow TSRS IE
2566 	 */
2567 
2568 	/* Get the physical rate (units of bps) */
2569 	min_phy = ((le32_to_cpu(params->min_phy_rate) / 1000) / 1000);
2570 
2571 	/* Check minimal phy < nominal phy rate */
2572 	if (params->nominal_phy >= min_phy) {
2573 		/* unit of 500 kbps */
2574 		nominal_phy = (params->nominal_phy * 1000) / 500;
2575 		ath6kl_dbg(ATH6KL_DBG_WMI,
2576 			   "TSRS IE enabled::MinPhy %x->NominalPhy ===> %x\n",
2577 			   min_phy, nominal_phy);
2578 
2579 		params->nominal_phy = nominal_phy;
2580 	} else {
2581 		params->nominal_phy = 0;
2582 	}
2583 
2584 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2585 	if (!skb)
2586 		return -ENOMEM;
2587 
2588 	ath6kl_dbg(ATH6KL_DBG_WMI,
2589 		   "sending create_pstream_cmd: ac=%d  tsid:%d\n",
2590 		   params->traffic_class, params->tsid);
2591 
2592 	cmd = (struct wmi_create_pstream_cmd *) skb->data;
2593 	memcpy(cmd, params, sizeof(*cmd));
2594 
2595 	/* This is an implicitly created Fat pipe */
2596 	if ((u32) params->tsid == (u32) WMI_IMPLICIT_PSTREAM) {
2597 		spin_lock_bh(&wmi->lock);
2598 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2599 					(1 << params->traffic_class));
2600 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2601 		spin_unlock_bh(&wmi->lock);
2602 	} else {
2603 		/* explicitly created thin stream within a fat pipe */
2604 		spin_lock_bh(&wmi->lock);
2605 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2606 					(1 << params->traffic_class));
2607 		wmi->stream_exist_for_ac[params->traffic_class] |=
2608 		    (1 << params->tsid);
2609 		/*
2610 		 * If a thinstream becomes active, the fat pipe automatically
2611 		 * becomes active
2612 		 */
2613 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2614 		spin_unlock_bh(&wmi->lock);
2615 	}
2616 
2617 	/*
2618 	 * Indicate activty change to driver layer only if this is the
2619 	 * first TSID to get created in this AC explicitly or an implicit
2620 	 * fat pipe is getting created.
2621 	 */
2622 	if (!fatpipe_exist_for_ac)
2623 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2624 					    params->traffic_class, true);
2625 
2626 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CREATE_PSTREAM_CMDID,
2627 				  NO_SYNC_WMIFLAG);
2628 	return ret;
2629 }
2630 
2631 int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 if_idx, u8 traffic_class,
2632 				  u8 tsid)
2633 {
2634 	struct sk_buff *skb;
2635 	struct wmi_delete_pstream_cmd *cmd;
2636 	u16 active_tsids = 0;
2637 	int ret;
2638 
2639 	if (traffic_class >= WMM_NUM_AC) {
2640 		ath6kl_err("invalid traffic class: %d\n", traffic_class);
2641 		return -EINVAL;
2642 	}
2643 
2644 	if (tsid >= 16) {
2645 		ath6kl_err("invalid tsid: %d\n", tsid);
2646 		return -EINVAL;
2647 	}
2648 
2649 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2650 	if (!skb)
2651 		return -ENOMEM;
2652 
2653 	cmd = (struct wmi_delete_pstream_cmd *) skb->data;
2654 	cmd->traffic_class = traffic_class;
2655 	cmd->tsid = tsid;
2656 
2657 	spin_lock_bh(&wmi->lock);
2658 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2659 	spin_unlock_bh(&wmi->lock);
2660 
2661 	if (!(active_tsids & (1 << tsid))) {
2662 		dev_kfree_skb(skb);
2663 		ath6kl_dbg(ATH6KL_DBG_WMI,
2664 			   "TSID %d doesn't exist for traffic class: %d\n",
2665 			   tsid, traffic_class);
2666 		return -ENODATA;
2667 	}
2668 
2669 	ath6kl_dbg(ATH6KL_DBG_WMI,
2670 		   "sending delete_pstream_cmd: traffic class: %d tsid=%d\n",
2671 		   traffic_class, tsid);
2672 
2673 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_PSTREAM_CMDID,
2674 				  SYNC_BEFORE_WMIFLAG);
2675 
2676 	spin_lock_bh(&wmi->lock);
2677 	wmi->stream_exist_for_ac[traffic_class] &= ~(1 << tsid);
2678 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2679 	spin_unlock_bh(&wmi->lock);
2680 
2681 	/*
2682 	 * Indicate stream inactivity to driver layer only if all tsids
2683 	 * within this AC are deleted.
2684 	 */
2685 	if (!active_tsids) {
2686 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2687 					    traffic_class, false);
2688 		wmi->fat_pipe_exist &= ~(1 << traffic_class);
2689 	}
2690 
2691 	return ret;
2692 }
2693 
2694 int ath6kl_wmi_set_ip_cmd(struct wmi *wmi, u8 if_idx,
2695 			  __be32 ips0, __be32 ips1)
2696 {
2697 	struct sk_buff *skb;
2698 	struct wmi_set_ip_cmd *cmd;
2699 	int ret;
2700 
2701 	/* Multicast address are not valid */
2702 	if (ipv4_is_multicast(ips0) ||
2703 	    ipv4_is_multicast(ips1))
2704 		return -EINVAL;
2705 
2706 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_ip_cmd));
2707 	if (!skb)
2708 		return -ENOMEM;
2709 
2710 	cmd = (struct wmi_set_ip_cmd *) skb->data;
2711 	cmd->ips[0] = ips0;
2712 	cmd->ips[1] = ips1;
2713 
2714 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IP_CMDID,
2715 				  NO_SYNC_WMIFLAG);
2716 	return ret;
2717 }
2718 
2719 static void ath6kl_wmi_relinquish_implicit_pstream_credits(struct wmi *wmi)
2720 {
2721 	u16 active_tsids;
2722 	u8 stream_exist;
2723 	int i;
2724 
2725 	/*
2726 	 * Relinquish credits from all implicitly created pstreams
2727 	 * since when we go to sleep. If user created explicit
2728 	 * thinstreams exists with in a fatpipe leave them intact
2729 	 * for the user to delete.
2730 	 */
2731 	spin_lock_bh(&wmi->lock);
2732 	stream_exist = wmi->fat_pipe_exist;
2733 	spin_unlock_bh(&wmi->lock);
2734 
2735 	for (i = 0; i < WMM_NUM_AC; i++) {
2736 		if (stream_exist & (1 << i)) {
2737 			/*
2738 			 * FIXME: Is this lock & unlock inside
2739 			 * for loop correct? may need rework.
2740 			 */
2741 			spin_lock_bh(&wmi->lock);
2742 			active_tsids = wmi->stream_exist_for_ac[i];
2743 			spin_unlock_bh(&wmi->lock);
2744 
2745 			/*
2746 			 * If there are no user created thin streams
2747 			 * delete the fatpipe
2748 			 */
2749 			if (!active_tsids) {
2750 				stream_exist &= ~(1 << i);
2751 				/*
2752 				 * Indicate inactivity to driver layer for
2753 				 * this fatpipe (pstream)
2754 				 */
2755 				ath6kl_indicate_tx_activity(wmi->parent_dev,
2756 							    i, false);
2757 			}
2758 		}
2759 	}
2760 
2761 	/* FIXME: Can we do this assignment without locking ? */
2762 	spin_lock_bh(&wmi->lock);
2763 	wmi->fat_pipe_exist = stream_exist;
2764 	spin_unlock_bh(&wmi->lock);
2765 }
2766 
2767 static int ath6kl_set_bitrate_mask64(struct wmi *wmi, u8 if_idx,
2768 				     const struct cfg80211_bitrate_mask *mask)
2769 {
2770 	struct sk_buff *skb;
2771 	int ret, mode, band;
2772 	u64 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2773 	struct wmi_set_tx_select_rates64_cmd *cmd;
2774 
2775 	memset(&ratemask, 0, sizeof(ratemask));
2776 
2777 	/* only check 2.4 and 5 GHz bands, skip the rest */
2778 	for (band = 0; band <= NL80211_BAND_5GHZ; band++) {
2779 		/* copy legacy rate mask */
2780 		ratemask[band] = mask->control[band].legacy;
2781 		if (band == NL80211_BAND_5GHZ)
2782 			ratemask[band] =
2783 				mask->control[band].legacy << 4;
2784 
2785 		/* copy mcs rate mask */
2786 		mcsrate = mask->control[band].ht_mcs[1];
2787 		mcsrate <<= 8;
2788 		mcsrate |= mask->control[band].ht_mcs[0];
2789 		ratemask[band] |= mcsrate << 12;
2790 		ratemask[band] |= mcsrate << 28;
2791 	}
2792 
2793 	ath6kl_dbg(ATH6KL_DBG_WMI,
2794 		   "Ratemask 64 bit: 2.4:%llx 5:%llx\n",
2795 		   ratemask[0], ratemask[1]);
2796 
2797 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2798 	if (!skb)
2799 		return -ENOMEM;
2800 
2801 	cmd = (struct wmi_set_tx_select_rates64_cmd *) skb->data;
2802 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2803 		/* A mode operate in 5GHZ band */
2804 		if (mode == WMI_RATES_MODE_11A ||
2805 		    mode == WMI_RATES_MODE_11A_HT20 ||
2806 		    mode == WMI_RATES_MODE_11A_HT40)
2807 			band = NL80211_BAND_5GHZ;
2808 		else
2809 			band = NL80211_BAND_2GHZ;
2810 		cmd->ratemask[mode] = cpu_to_le64(ratemask[band]);
2811 	}
2812 
2813 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2814 				  WMI_SET_TX_SELECT_RATES_CMDID,
2815 				  NO_SYNC_WMIFLAG);
2816 	return ret;
2817 }
2818 
2819 static int ath6kl_set_bitrate_mask32(struct wmi *wmi, u8 if_idx,
2820 				     const struct cfg80211_bitrate_mask *mask)
2821 {
2822 	struct sk_buff *skb;
2823 	int ret, mode, band;
2824 	u32 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2825 	struct wmi_set_tx_select_rates32_cmd *cmd;
2826 
2827 	memset(&ratemask, 0, sizeof(ratemask));
2828 
2829 	/* only check 2.4 and 5 GHz bands, skip the rest */
2830 	for (band = 0; band <= NL80211_BAND_5GHZ; band++) {
2831 		/* copy legacy rate mask */
2832 		ratemask[band] = mask->control[band].legacy;
2833 		if (band == NL80211_BAND_5GHZ)
2834 			ratemask[band] =
2835 				mask->control[band].legacy << 4;
2836 
2837 		/* copy mcs rate mask */
2838 		mcsrate = mask->control[band].ht_mcs[0];
2839 		ratemask[band] |= mcsrate << 12;
2840 		ratemask[band] |= mcsrate << 20;
2841 	}
2842 
2843 	ath6kl_dbg(ATH6KL_DBG_WMI,
2844 		   "Ratemask 32 bit: 2.4:%x 5:%x\n",
2845 		   ratemask[0], ratemask[1]);
2846 
2847 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2848 	if (!skb)
2849 		return -ENOMEM;
2850 
2851 	cmd = (struct wmi_set_tx_select_rates32_cmd *) skb->data;
2852 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2853 		/* A mode operate in 5GHZ band */
2854 		if (mode == WMI_RATES_MODE_11A ||
2855 		    mode == WMI_RATES_MODE_11A_HT20 ||
2856 		    mode == WMI_RATES_MODE_11A_HT40)
2857 			band = NL80211_BAND_5GHZ;
2858 		else
2859 			band = NL80211_BAND_2GHZ;
2860 		cmd->ratemask[mode] = cpu_to_le32(ratemask[band]);
2861 	}
2862 
2863 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2864 				  WMI_SET_TX_SELECT_RATES_CMDID,
2865 				  NO_SYNC_WMIFLAG);
2866 	return ret;
2867 }
2868 
2869 int ath6kl_wmi_set_bitrate_mask(struct wmi *wmi, u8 if_idx,
2870 				const struct cfg80211_bitrate_mask *mask)
2871 {
2872 	struct ath6kl *ar = wmi->parent_dev;
2873 
2874 	if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES,
2875 		     ar->fw_capabilities))
2876 		return ath6kl_set_bitrate_mask64(wmi, if_idx, mask);
2877 	else
2878 		return ath6kl_set_bitrate_mask32(wmi, if_idx, mask);
2879 }
2880 
2881 int ath6kl_wmi_set_host_sleep_mode_cmd(struct wmi *wmi, u8 if_idx,
2882 				       enum ath6kl_host_mode host_mode)
2883 {
2884 	struct sk_buff *skb;
2885 	struct wmi_set_host_sleep_mode_cmd *cmd;
2886 	int ret;
2887 
2888 	if ((host_mode != ATH6KL_HOST_MODE_ASLEEP) &&
2889 	    (host_mode != ATH6KL_HOST_MODE_AWAKE)) {
2890 		ath6kl_err("invalid host sleep mode: %d\n", host_mode);
2891 		return -EINVAL;
2892 	}
2893 
2894 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2895 	if (!skb)
2896 		return -ENOMEM;
2897 
2898 	cmd = (struct wmi_set_host_sleep_mode_cmd *) skb->data;
2899 
2900 	if (host_mode == ATH6KL_HOST_MODE_ASLEEP) {
2901 		ath6kl_wmi_relinquish_implicit_pstream_credits(wmi);
2902 		cmd->asleep = cpu_to_le32(1);
2903 	} else {
2904 		cmd->awake = cpu_to_le32(1);
2905 	}
2906 
2907 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2908 				  WMI_SET_HOST_SLEEP_MODE_CMDID,
2909 				  NO_SYNC_WMIFLAG);
2910 	return ret;
2911 }
2912 
2913 /* This command has zero length payload */
2914 static int ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(struct wmi *wmi,
2915 						      struct ath6kl_vif *vif)
2916 {
2917 	struct ath6kl *ar = wmi->parent_dev;
2918 
2919 	set_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2920 	wake_up(&ar->event_wq);
2921 
2922 	return 0;
2923 }
2924 
2925 int ath6kl_wmi_set_wow_mode_cmd(struct wmi *wmi, u8 if_idx,
2926 				enum ath6kl_wow_mode wow_mode,
2927 				u32 filter, u16 host_req_delay)
2928 {
2929 	struct sk_buff *skb;
2930 	struct wmi_set_wow_mode_cmd *cmd;
2931 	int ret;
2932 
2933 	if ((wow_mode != ATH6KL_WOW_MODE_ENABLE) &&
2934 	    wow_mode != ATH6KL_WOW_MODE_DISABLE) {
2935 		ath6kl_err("invalid wow mode: %d\n", wow_mode);
2936 		return -EINVAL;
2937 	}
2938 
2939 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2940 	if (!skb)
2941 		return -ENOMEM;
2942 
2943 	cmd = (struct wmi_set_wow_mode_cmd *) skb->data;
2944 	cmd->enable_wow = cpu_to_le32(wow_mode);
2945 	cmd->filter = cpu_to_le32(filter);
2946 	cmd->host_req_delay = cpu_to_le16(host_req_delay);
2947 
2948 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WOW_MODE_CMDID,
2949 				  NO_SYNC_WMIFLAG);
2950 	return ret;
2951 }
2952 
2953 int ath6kl_wmi_add_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2954 				   u8 list_id, u8 filter_size,
2955 				   u8 filter_offset, const u8 *filter,
2956 				   const u8 *mask)
2957 {
2958 	struct sk_buff *skb;
2959 	struct wmi_add_wow_pattern_cmd *cmd;
2960 	u16 size;
2961 	u8 *filter_mask;
2962 	int ret;
2963 
2964 	/*
2965 	 * Allocate additional memory in the buffer to hold
2966 	 * filter and mask value, which is twice of filter_size.
2967 	 */
2968 	size = sizeof(*cmd) + (2 * filter_size);
2969 
2970 	skb = ath6kl_wmi_get_new_buf(size);
2971 	if (!skb)
2972 		return -ENOMEM;
2973 
2974 	cmd = (struct wmi_add_wow_pattern_cmd *) skb->data;
2975 	cmd->filter_list_id = list_id;
2976 	cmd->filter_size = filter_size;
2977 	cmd->filter_offset = filter_offset;
2978 
2979 	memcpy(cmd->filter, filter, filter_size);
2980 
2981 	filter_mask = (u8 *) (cmd->filter + filter_size);
2982 	memcpy(filter_mask, mask, filter_size);
2983 
2984 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_WOW_PATTERN_CMDID,
2985 				  NO_SYNC_WMIFLAG);
2986 
2987 	return ret;
2988 }
2989 
2990 int ath6kl_wmi_del_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2991 				   u16 list_id, u16 filter_id)
2992 {
2993 	struct sk_buff *skb;
2994 	struct wmi_del_wow_pattern_cmd *cmd;
2995 	int ret;
2996 
2997 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2998 	if (!skb)
2999 		return -ENOMEM;
3000 
3001 	cmd = (struct wmi_del_wow_pattern_cmd *) skb->data;
3002 	cmd->filter_list_id = cpu_to_le16(list_id);
3003 	cmd->filter_id = cpu_to_le16(filter_id);
3004 
3005 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DEL_WOW_PATTERN_CMDID,
3006 				  NO_SYNC_WMIFLAG);
3007 	return ret;
3008 }
3009 
3010 static int ath6kl_wmi_cmd_send_xtnd(struct wmi *wmi, struct sk_buff *skb,
3011 				    enum wmix_command_id cmd_id,
3012 				    enum wmi_sync_flag sync_flag)
3013 {
3014 	struct wmix_cmd_hdr *cmd_hdr;
3015 	int ret;
3016 
3017 	skb_push(skb, sizeof(struct wmix_cmd_hdr));
3018 
3019 	cmd_hdr = (struct wmix_cmd_hdr *) skb->data;
3020 	cmd_hdr->cmd_id = cpu_to_le32(cmd_id);
3021 
3022 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_EXTENSION_CMDID, sync_flag);
3023 
3024 	return ret;
3025 }
3026 
3027 int ath6kl_wmi_get_challenge_resp_cmd(struct wmi *wmi, u32 cookie, u32 source)
3028 {
3029 	struct sk_buff *skb;
3030 	struct wmix_hb_challenge_resp_cmd *cmd;
3031 	int ret;
3032 
3033 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3034 	if (!skb)
3035 		return -ENOMEM;
3036 
3037 	cmd = (struct wmix_hb_challenge_resp_cmd *) skb->data;
3038 	cmd->cookie = cpu_to_le32(cookie);
3039 	cmd->source = cpu_to_le32(source);
3040 
3041 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_HB_CHALLENGE_RESP_CMDID,
3042 				       NO_SYNC_WMIFLAG);
3043 	return ret;
3044 }
3045 
3046 int ath6kl_wmi_config_debug_module_cmd(struct wmi *wmi, u32 valid, u32 config)
3047 {
3048 	struct ath6kl_wmix_dbglog_cfg_module_cmd *cmd;
3049 	struct sk_buff *skb;
3050 	int ret;
3051 
3052 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3053 	if (!skb)
3054 		return -ENOMEM;
3055 
3056 	cmd = (struct ath6kl_wmix_dbglog_cfg_module_cmd *) skb->data;
3057 	cmd->valid = cpu_to_le32(valid);
3058 	cmd->config = cpu_to_le32(config);
3059 
3060 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_DBGLOG_CFG_MODULE_CMDID,
3061 				       NO_SYNC_WMIFLAG);
3062 	return ret;
3063 }
3064 
3065 int ath6kl_wmi_get_stats_cmd(struct wmi *wmi, u8 if_idx)
3066 {
3067 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_STATISTICS_CMDID);
3068 }
3069 
3070 int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 if_idx, u8 dbM)
3071 {
3072 	struct sk_buff *skb;
3073 	struct wmi_set_tx_pwr_cmd *cmd;
3074 	int ret;
3075 
3076 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_tx_pwr_cmd));
3077 	if (!skb)
3078 		return -ENOMEM;
3079 
3080 	cmd = (struct wmi_set_tx_pwr_cmd *) skb->data;
3081 	cmd->dbM = dbM;
3082 
3083 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_TX_PWR_CMDID,
3084 				  NO_SYNC_WMIFLAG);
3085 
3086 	return ret;
3087 }
3088 
3089 int ath6kl_wmi_get_tx_pwr_cmd(struct wmi *wmi, u8 if_idx)
3090 {
3091 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_TX_PWR_CMDID);
3092 }
3093 
3094 int ath6kl_wmi_get_roam_tbl_cmd(struct wmi *wmi)
3095 {
3096 	return ath6kl_wmi_simple_cmd(wmi, 0, WMI_GET_ROAM_TBL_CMDID);
3097 }
3098 
3099 int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 if_idx, u8 status,
3100 				 u8 preamble_policy)
3101 {
3102 	struct sk_buff *skb;
3103 	struct wmi_set_lpreamble_cmd *cmd;
3104 	int ret;
3105 
3106 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_lpreamble_cmd));
3107 	if (!skb)
3108 		return -ENOMEM;
3109 
3110 	cmd = (struct wmi_set_lpreamble_cmd *) skb->data;
3111 	cmd->status = status;
3112 	cmd->preamble_policy = preamble_policy;
3113 
3114 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LPREAMBLE_CMDID,
3115 				  NO_SYNC_WMIFLAG);
3116 	return ret;
3117 }
3118 
3119 int ath6kl_wmi_set_rts_cmd(struct wmi *wmi, u16 threshold)
3120 {
3121 	struct sk_buff *skb;
3122 	struct wmi_set_rts_cmd *cmd;
3123 	int ret;
3124 
3125 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_rts_cmd));
3126 	if (!skb)
3127 		return -ENOMEM;
3128 
3129 	cmd = (struct wmi_set_rts_cmd *) skb->data;
3130 	cmd->threshold = cpu_to_le16(threshold);
3131 
3132 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_RTS_CMDID,
3133 				  NO_SYNC_WMIFLAG);
3134 	return ret;
3135 }
3136 
3137 int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, u8 if_idx, enum wmi_txop_cfg cfg)
3138 {
3139 	struct sk_buff *skb;
3140 	struct wmi_set_wmm_txop_cmd *cmd;
3141 	int ret;
3142 
3143 	if (!((cfg == WMI_TXOP_DISABLED) || (cfg == WMI_TXOP_ENABLED)))
3144 		return -EINVAL;
3145 
3146 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_wmm_txop_cmd));
3147 	if (!skb)
3148 		return -ENOMEM;
3149 
3150 	cmd = (struct wmi_set_wmm_txop_cmd *) skb->data;
3151 	cmd->txop_enable = cfg;
3152 
3153 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WMM_TXOP_CMDID,
3154 				  NO_SYNC_WMIFLAG);
3155 	return ret;
3156 }
3157 
3158 int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 if_idx,
3159 				 u8 keep_alive_intvl)
3160 {
3161 	struct sk_buff *skb;
3162 	struct wmi_set_keepalive_cmd *cmd;
3163 	int ret;
3164 
3165 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3166 	if (!skb)
3167 		return -ENOMEM;
3168 
3169 	cmd = (struct wmi_set_keepalive_cmd *) skb->data;
3170 	cmd->keep_alive_intvl = keep_alive_intvl;
3171 
3172 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_KEEPALIVE_CMDID,
3173 				  NO_SYNC_WMIFLAG);
3174 
3175 	if (ret == 0)
3176 		ath6kl_debug_set_keepalive(wmi->parent_dev, keep_alive_intvl);
3177 
3178 	return ret;
3179 }
3180 
3181 int ath6kl_wmi_set_htcap_cmd(struct wmi *wmi, u8 if_idx,
3182 			     enum nl80211_band band,
3183 			     struct ath6kl_htcap *htcap)
3184 {
3185 	struct sk_buff *skb;
3186 	struct wmi_set_htcap_cmd *cmd;
3187 
3188 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3189 	if (!skb)
3190 		return -ENOMEM;
3191 
3192 	cmd = (struct wmi_set_htcap_cmd *) skb->data;
3193 
3194 	/*
3195 	 * NOTE: Band in firmware matches enum nl80211_band, it is unlikely
3196 	 * this will be changed in firmware. If at all there is any change in
3197 	 * band value, the host needs to be fixed.
3198 	 */
3199 	cmd->band = band;
3200 	cmd->ht_enable = !!htcap->ht_enable;
3201 	cmd->ht20_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_20);
3202 	cmd->ht40_supported =
3203 		!!(htcap->cap_info & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
3204 	cmd->ht40_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_40);
3205 	cmd->intolerant_40mhz =
3206 		!!(htcap->cap_info & IEEE80211_HT_CAP_40MHZ_INTOLERANT);
3207 	cmd->max_ampdu_len_exp = htcap->ampdu_factor;
3208 
3209 	ath6kl_dbg(ATH6KL_DBG_WMI,
3210 		   "Set htcap: band:%d ht_enable:%d 40mhz:%d sgi_20mhz:%d sgi_40mhz:%d 40mhz_intolerant:%d ampdu_len_exp:%d\n",
3211 		   cmd->band, cmd->ht_enable, cmd->ht40_supported,
3212 		   cmd->ht20_sgi, cmd->ht40_sgi, cmd->intolerant_40mhz,
3213 		   cmd->max_ampdu_len_exp);
3214 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_HT_CAP_CMDID,
3215 				   NO_SYNC_WMIFLAG);
3216 }
3217 
3218 int ath6kl_wmi_test_cmd(struct wmi *wmi, void *buf, size_t len)
3219 {
3220 	struct sk_buff *skb;
3221 	int ret;
3222 
3223 	skb = ath6kl_wmi_get_new_buf(len);
3224 	if (!skb)
3225 		return -ENOMEM;
3226 
3227 	memcpy(skb->data, buf, len);
3228 
3229 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_TEST_CMDID, NO_SYNC_WMIFLAG);
3230 
3231 	return ret;
3232 }
3233 
3234 int ath6kl_wmi_mcast_filter_cmd(struct wmi *wmi, u8 if_idx, bool mc_all_on)
3235 {
3236 	struct sk_buff *skb;
3237 	struct wmi_mcast_filter_cmd *cmd;
3238 	int ret;
3239 
3240 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3241 	if (!skb)
3242 		return -ENOMEM;
3243 
3244 	cmd = (struct wmi_mcast_filter_cmd *) skb->data;
3245 	cmd->mcast_all_enable = mc_all_on;
3246 
3247 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_MCAST_FILTER_CMDID,
3248 				  NO_SYNC_WMIFLAG);
3249 	return ret;
3250 }
3251 
3252 int ath6kl_wmi_add_del_mcast_filter_cmd(struct wmi *wmi, u8 if_idx,
3253 					u8 *filter, bool add_filter)
3254 {
3255 	struct sk_buff *skb;
3256 	struct wmi_mcast_filter_add_del_cmd *cmd;
3257 	int ret;
3258 
3259 	if ((filter[0] != 0x33 || filter[1] != 0x33) &&
3260 	    (filter[0] != 0x01 || filter[1] != 0x00 ||
3261 	    filter[2] != 0x5e || filter[3] > 0x7f)) {
3262 		ath6kl_warn("invalid multicast filter address\n");
3263 		return -EINVAL;
3264 	}
3265 
3266 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3267 	if (!skb)
3268 		return -ENOMEM;
3269 
3270 	cmd = (struct wmi_mcast_filter_add_del_cmd *) skb->data;
3271 	memcpy(cmd->mcast_mac, filter, ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
3272 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3273 				  add_filter ? WMI_SET_MCAST_FILTER_CMDID :
3274 				  WMI_DEL_MCAST_FILTER_CMDID,
3275 				  NO_SYNC_WMIFLAG);
3276 
3277 	return ret;
3278 }
3279 
3280 int ath6kl_wmi_sta_bmiss_enhance_cmd(struct wmi *wmi, u8 if_idx, bool enhance)
3281 {
3282 	struct sk_buff *skb;
3283 	struct wmi_sta_bmiss_enhance_cmd *cmd;
3284 	int ret;
3285 
3286 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3287 	if (!skb)
3288 		return -ENOMEM;
3289 
3290 	cmd = (struct wmi_sta_bmiss_enhance_cmd *) skb->data;
3291 	cmd->enable = enhance ? 1 : 0;
3292 
3293 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3294 				  WMI_STA_BMISS_ENHANCE_CMDID,
3295 				  NO_SYNC_WMIFLAG);
3296 	return ret;
3297 }
3298 
3299 int ath6kl_wmi_set_regdomain_cmd(struct wmi *wmi, const char *alpha2)
3300 {
3301 	struct sk_buff *skb;
3302 	struct wmi_set_regdomain_cmd *cmd;
3303 
3304 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3305 	if (!skb)
3306 		return -ENOMEM;
3307 
3308 	cmd = (struct wmi_set_regdomain_cmd *) skb->data;
3309 	memcpy(cmd->iso_name, alpha2, 2);
3310 
3311 	return ath6kl_wmi_cmd_send(wmi, 0, skb,
3312 				   WMI_SET_REGDOMAIN_CMDID,
3313 				   NO_SYNC_WMIFLAG);
3314 }
3315 
3316 s32 ath6kl_wmi_get_rate(struct wmi *wmi, s8 rate_index)
3317 {
3318 	struct ath6kl *ar = wmi->parent_dev;
3319 	u8 sgi = 0;
3320 	s32 ret;
3321 
3322 	if (rate_index == RATE_AUTO)
3323 		return 0;
3324 
3325 	/* SGI is stored as the MSB of the rate_index */
3326 	if (rate_index & RATE_INDEX_MSB) {
3327 		rate_index &= RATE_INDEX_WITHOUT_SGI_MASK;
3328 		sgi = 1;
3329 	}
3330 
3331 	if (test_bit(ATH6KL_FW_CAPABILITY_RATETABLE_MCS15,
3332 		     ar->fw_capabilities)) {
3333 		if (WARN_ON(rate_index >= ARRAY_SIZE(wmi_rate_tbl_mcs15)))
3334 			return 0;
3335 
3336 		ret = wmi_rate_tbl_mcs15[(u32) rate_index][sgi];
3337 	} else {
3338 		if (WARN_ON(rate_index >= ARRAY_SIZE(wmi_rate_tbl)))
3339 			return 0;
3340 
3341 		ret = wmi_rate_tbl[(u32) rate_index][sgi];
3342 	}
3343 
3344 	return ret;
3345 }
3346 
3347 static int ath6kl_wmi_get_pmkid_list_event_rx(struct wmi *wmi, u8 *datap,
3348 					      u32 len)
3349 {
3350 	struct wmi_pmkid_list_reply *reply;
3351 	u32 expected_len;
3352 
3353 	if (len < sizeof(struct wmi_pmkid_list_reply))
3354 		return -EINVAL;
3355 
3356 	reply = (struct wmi_pmkid_list_reply *)datap;
3357 	expected_len = sizeof(reply->num_pmkid) +
3358 		le32_to_cpu(reply->num_pmkid) * WMI_PMKID_LEN;
3359 
3360 	if (len < expected_len)
3361 		return -EINVAL;
3362 
3363 	return 0;
3364 }
3365 
3366 static int ath6kl_wmi_addba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3367 					 struct ath6kl_vif *vif)
3368 {
3369 	struct wmi_addba_req_event *cmd = (struct wmi_addba_req_event *) datap;
3370 
3371 	aggr_recv_addba_req_evt(vif, cmd->tid,
3372 				le16_to_cpu(cmd->st_seq_no), cmd->win_sz);
3373 
3374 	return 0;
3375 }
3376 
3377 static int ath6kl_wmi_delba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3378 					 struct ath6kl_vif *vif)
3379 {
3380 	struct wmi_delba_event *cmd = (struct wmi_delba_event *) datap;
3381 
3382 	aggr_recv_delba_req_evt(vif, cmd->tid);
3383 
3384 	return 0;
3385 }
3386 
3387 /*  AP mode functions */
3388 
3389 int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, u8 if_idx,
3390 				 struct wmi_connect_cmd *p)
3391 {
3392 	struct sk_buff *skb;
3393 	struct wmi_connect_cmd *cm;
3394 	int res;
3395 
3396 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3397 	if (!skb)
3398 		return -ENOMEM;
3399 
3400 	cm = (struct wmi_connect_cmd *) skb->data;
3401 	memcpy(cm, p, sizeof(*cm));
3402 
3403 	res = ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_CONFIG_COMMIT_CMDID,
3404 				  NO_SYNC_WMIFLAG);
3405 	ath6kl_dbg(ATH6KL_DBG_WMI,
3406 		   "%s: nw_type=%u auth_mode=%u ch=%u ctrl_flags=0x%x-> res=%d\n",
3407 		   __func__, p->nw_type, p->auth_mode, le16_to_cpu(p->ch),
3408 		   le32_to_cpu(p->ctrl_flags), res);
3409 	return res;
3410 }
3411 
3412 int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 if_idx, u8 cmd, const u8 *mac,
3413 			   u16 reason)
3414 {
3415 	struct sk_buff *skb;
3416 	struct wmi_ap_set_mlme_cmd *cm;
3417 
3418 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3419 	if (!skb)
3420 		return -ENOMEM;
3421 
3422 	cm = (struct wmi_ap_set_mlme_cmd *) skb->data;
3423 	memcpy(cm->mac, mac, ETH_ALEN);
3424 	cm->reason = cpu_to_le16(reason);
3425 	cm->cmd = cmd;
3426 
3427 	ath6kl_dbg(ATH6KL_DBG_WMI, "ap_set_mlme: cmd=%d reason=%d\n", cm->cmd,
3428 		   cm->reason);
3429 
3430 	return ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_SET_MLME_CMDID,
3431 				   NO_SYNC_WMIFLAG);
3432 }
3433 
3434 int ath6kl_wmi_ap_hidden_ssid(struct wmi *wmi, u8 if_idx, bool enable)
3435 {
3436 	struct sk_buff *skb;
3437 	struct wmi_ap_hidden_ssid_cmd *cmd;
3438 
3439 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3440 	if (!skb)
3441 		return -ENOMEM;
3442 
3443 	cmd = (struct wmi_ap_hidden_ssid_cmd *) skb->data;
3444 	cmd->hidden_ssid = enable ? 1 : 0;
3445 
3446 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_HIDDEN_SSID_CMDID,
3447 				   NO_SYNC_WMIFLAG);
3448 }
3449 
3450 /* This command will be used to enable/disable AP uAPSD feature */
3451 int ath6kl_wmi_ap_set_apsd(struct wmi *wmi, u8 if_idx, u8 enable)
3452 {
3453 	struct wmi_ap_set_apsd_cmd *cmd;
3454 	struct sk_buff *skb;
3455 
3456 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3457 	if (!skb)
3458 		return -ENOMEM;
3459 
3460 	cmd = (struct wmi_ap_set_apsd_cmd *)skb->data;
3461 	cmd->enable = enable;
3462 
3463 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_APSD_CMDID,
3464 				   NO_SYNC_WMIFLAG);
3465 }
3466 
3467 int ath6kl_wmi_set_apsd_bfrd_traf(struct wmi *wmi, u8 if_idx,
3468 					     u16 aid, u16 bitmap, u32 flags)
3469 {
3470 	struct wmi_ap_apsd_buffered_traffic_cmd *cmd;
3471 	struct sk_buff *skb;
3472 
3473 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3474 	if (!skb)
3475 		return -ENOMEM;
3476 
3477 	cmd = (struct wmi_ap_apsd_buffered_traffic_cmd *)skb->data;
3478 	cmd->aid = cpu_to_le16(aid);
3479 	cmd->bitmap = cpu_to_le16(bitmap);
3480 	cmd->flags = cpu_to_le32(flags);
3481 
3482 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3483 				   WMI_AP_APSD_BUFFERED_TRAFFIC_CMDID,
3484 				   NO_SYNC_WMIFLAG);
3485 }
3486 
3487 static int ath6kl_wmi_pspoll_event_rx(struct wmi *wmi, u8 *datap, int len,
3488 				      struct ath6kl_vif *vif)
3489 {
3490 	struct wmi_pspoll_event *ev;
3491 
3492 	if (len < sizeof(struct wmi_pspoll_event))
3493 		return -EINVAL;
3494 
3495 	ev = (struct wmi_pspoll_event *) datap;
3496 
3497 	ath6kl_pspoll_event(vif, le16_to_cpu(ev->aid));
3498 
3499 	return 0;
3500 }
3501 
3502 static int ath6kl_wmi_dtimexpiry_event_rx(struct wmi *wmi, u8 *datap, int len,
3503 					  struct ath6kl_vif *vif)
3504 {
3505 	ath6kl_dtimexpiry_event(vif);
3506 
3507 	return 0;
3508 }
3509 
3510 int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u8 if_idx, u16 aid,
3511 			   bool flag)
3512 {
3513 	struct sk_buff *skb;
3514 	struct wmi_ap_set_pvb_cmd *cmd;
3515 	int ret;
3516 
3517 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_ap_set_pvb_cmd));
3518 	if (!skb)
3519 		return -ENOMEM;
3520 
3521 	cmd = (struct wmi_ap_set_pvb_cmd *) skb->data;
3522 	cmd->aid = cpu_to_le16(aid);
3523 	cmd->rsvd = cpu_to_le16(0);
3524 	cmd->flag = cpu_to_le32(flag);
3525 
3526 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_PVB_CMDID,
3527 				  NO_SYNC_WMIFLAG);
3528 
3529 	return ret;
3530 }
3531 
3532 int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 if_idx,
3533 				       u8 rx_meta_ver,
3534 				       bool rx_dot11_hdr, bool defrag_on_host)
3535 {
3536 	struct sk_buff *skb;
3537 	struct wmi_rx_frame_format_cmd *cmd;
3538 	int ret;
3539 
3540 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3541 	if (!skb)
3542 		return -ENOMEM;
3543 
3544 	cmd = (struct wmi_rx_frame_format_cmd *) skb->data;
3545 	cmd->dot11_hdr = rx_dot11_hdr ? 1 : 0;
3546 	cmd->defrag_on_host = defrag_on_host ? 1 : 0;
3547 	cmd->meta_ver = rx_meta_ver;
3548 
3549 	/* Delete the local aggr state, on host */
3550 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RX_FRAME_FORMAT_CMDID,
3551 				  NO_SYNC_WMIFLAG);
3552 
3553 	return ret;
3554 }
3555 
3556 int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type,
3557 			     const u8 *ie, u8 ie_len)
3558 {
3559 	struct sk_buff *skb;
3560 	struct wmi_set_appie_cmd *p;
3561 
3562 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3563 	if (!skb)
3564 		return -ENOMEM;
3565 
3566 	ath6kl_dbg(ATH6KL_DBG_WMI,
3567 		   "set_appie_cmd: mgmt_frm_type=%u ie_len=%u\n",
3568 		   mgmt_frm_type, ie_len);
3569 	p = (struct wmi_set_appie_cmd *) skb->data;
3570 	p->mgmt_frm_type = mgmt_frm_type;
3571 	p->ie_len = ie_len;
3572 
3573 	if (ie != NULL && ie_len > 0)
3574 		memcpy(p->ie_info, ie, ie_len);
3575 
3576 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_APPIE_CMDID,
3577 				   NO_SYNC_WMIFLAG);
3578 }
3579 
3580 int ath6kl_wmi_set_ie_cmd(struct wmi *wmi, u8 if_idx, u8 ie_id, u8 ie_field,
3581 			  const u8 *ie_info, u8 ie_len)
3582 {
3583 	struct sk_buff *skb;
3584 	struct wmi_set_ie_cmd *p;
3585 
3586 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3587 	if (!skb)
3588 		return -ENOMEM;
3589 
3590 	ath6kl_dbg(ATH6KL_DBG_WMI, "set_ie_cmd: ie_id=%u ie_ie_field=%u ie_len=%u\n",
3591 		   ie_id, ie_field, ie_len);
3592 	p = (struct wmi_set_ie_cmd *) skb->data;
3593 	p->ie_id = ie_id;
3594 	p->ie_field = ie_field;
3595 	p->ie_len = ie_len;
3596 	if (ie_info && ie_len > 0)
3597 		memcpy(p->ie_info, ie_info, ie_len);
3598 
3599 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IE_CMDID,
3600 				   NO_SYNC_WMIFLAG);
3601 }
3602 
3603 int ath6kl_wmi_disable_11b_rates_cmd(struct wmi *wmi, bool disable)
3604 {
3605 	struct sk_buff *skb;
3606 	struct wmi_disable_11b_rates_cmd *cmd;
3607 
3608 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3609 	if (!skb)
3610 		return -ENOMEM;
3611 
3612 	ath6kl_dbg(ATH6KL_DBG_WMI, "disable_11b_rates_cmd: disable=%u\n",
3613 		   disable);
3614 	cmd = (struct wmi_disable_11b_rates_cmd *) skb->data;
3615 	cmd->disable = disable ? 1 : 0;
3616 
3617 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_DISABLE_11B_RATES_CMDID,
3618 				   NO_SYNC_WMIFLAG);
3619 }
3620 
3621 int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx, u32 freq, u32 dur)
3622 {
3623 	struct sk_buff *skb;
3624 	struct wmi_remain_on_chnl_cmd *p;
3625 
3626 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3627 	if (!skb)
3628 		return -ENOMEM;
3629 
3630 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl_cmd: freq=%u dur=%u\n",
3631 		   freq, dur);
3632 	p = (struct wmi_remain_on_chnl_cmd *) skb->data;
3633 	p->freq = cpu_to_le32(freq);
3634 	p->duration = cpu_to_le32(dur);
3635 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_REMAIN_ON_CHNL_CMDID,
3636 				   NO_SYNC_WMIFLAG);
3637 }
3638 
3639 /* ath6kl_wmi_send_action_cmd is to be deprecated. Use
3640  * ath6kl_wmi_send_mgmt_cmd instead. The new function supports P2P
3641  * mgmt operations using station interface.
3642  */
3643 static int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3644 				      u32 freq, u32 wait, const u8 *data,
3645 				      u16 data_len)
3646 {
3647 	struct sk_buff *skb;
3648 	struct wmi_send_action_cmd *p;
3649 	u8 *buf;
3650 
3651 	if (wait)
3652 		return -EINVAL; /* Offload for wait not supported */
3653 
3654 	buf = kmemdup(data, data_len, GFP_KERNEL);
3655 	if (!buf)
3656 		return -ENOMEM;
3657 
3658 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3659 	if (!skb) {
3660 		kfree(buf);
3661 		return -ENOMEM;
3662 	}
3663 
3664 	kfree(wmi->last_mgmt_tx_frame);
3665 	wmi->last_mgmt_tx_frame = buf;
3666 	wmi->last_mgmt_tx_frame_len = data_len;
3667 
3668 	ath6kl_dbg(ATH6KL_DBG_WMI,
3669 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3670 		   id, freq, wait, data_len);
3671 	p = (struct wmi_send_action_cmd *) skb->data;
3672 	p->id = cpu_to_le32(id);
3673 	p->freq = cpu_to_le32(freq);
3674 	p->wait = cpu_to_le32(wait);
3675 	p->len = cpu_to_le16(data_len);
3676 	memcpy(p->data, data, data_len);
3677 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_ACTION_CMDID,
3678 				   NO_SYNC_WMIFLAG);
3679 }
3680 
3681 static int __ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3682 				      u32 freq, u32 wait, const u8 *data,
3683 				      u16 data_len, u32 no_cck)
3684 {
3685 	struct sk_buff *skb;
3686 	struct wmi_send_mgmt_cmd *p;
3687 	u8 *buf;
3688 
3689 	if (wait)
3690 		return -EINVAL; /* Offload for wait not supported */
3691 
3692 	buf = kmemdup(data, data_len, GFP_KERNEL);
3693 	if (!buf)
3694 		return -ENOMEM;
3695 
3696 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3697 	if (!skb) {
3698 		kfree(buf);
3699 		return -ENOMEM;
3700 	}
3701 
3702 	kfree(wmi->last_mgmt_tx_frame);
3703 	wmi->last_mgmt_tx_frame = buf;
3704 	wmi->last_mgmt_tx_frame_len = data_len;
3705 
3706 	ath6kl_dbg(ATH6KL_DBG_WMI,
3707 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3708 		   id, freq, wait, data_len);
3709 	p = (struct wmi_send_mgmt_cmd *) skb->data;
3710 	p->id = cpu_to_le32(id);
3711 	p->freq = cpu_to_le32(freq);
3712 	p->wait = cpu_to_le32(wait);
3713 	p->no_cck = cpu_to_le32(no_cck);
3714 	p->len = cpu_to_le16(data_len);
3715 	memcpy(p->data, data, data_len);
3716 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_MGMT_CMDID,
3717 				   NO_SYNC_WMIFLAG);
3718 }
3719 
3720 int ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id, u32 freq,
3721 				u32 wait, const u8 *data, u16 data_len,
3722 				u32 no_cck)
3723 {
3724 	int status;
3725 	struct ath6kl *ar = wmi->parent_dev;
3726 
3727 	if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
3728 		     ar->fw_capabilities)) {
3729 		/*
3730 		 * If capable of doing P2P mgmt operations using
3731 		 * station interface, send additional information like
3732 		 * supported rates to advertise and xmit rates for
3733 		 * probe requests
3734 		 */
3735 		status = __ath6kl_wmi_send_mgmt_cmd(ar->wmi, if_idx, id, freq,
3736 						    wait, data, data_len,
3737 						    no_cck);
3738 	} else {
3739 		status = ath6kl_wmi_send_action_cmd(ar->wmi, if_idx, id, freq,
3740 						    wait, data, data_len);
3741 	}
3742 
3743 	return status;
3744 }
3745 
3746 int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u8 if_idx, u32 freq,
3747 				       const u8 *dst, const u8 *data,
3748 				       u16 data_len)
3749 {
3750 	struct sk_buff *skb;
3751 	struct wmi_p2p_probe_response_cmd *p;
3752 	size_t cmd_len = sizeof(*p) + data_len;
3753 
3754 	if (data_len == 0)
3755 		cmd_len++; /* work around target minimum length requirement */
3756 
3757 	skb = ath6kl_wmi_get_new_buf(cmd_len);
3758 	if (!skb)
3759 		return -ENOMEM;
3760 
3761 	ath6kl_dbg(ATH6KL_DBG_WMI,
3762 		   "send_probe_response_cmd: freq=%u dst=%pM len=%u\n",
3763 		   freq, dst, data_len);
3764 	p = (struct wmi_p2p_probe_response_cmd *) skb->data;
3765 	p->freq = cpu_to_le32(freq);
3766 	memcpy(p->destination_addr, dst, ETH_ALEN);
3767 	p->len = cpu_to_le16(data_len);
3768 	memcpy(p->data, data, data_len);
3769 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3770 				   WMI_SEND_PROBE_RESPONSE_CMDID,
3771 				   NO_SYNC_WMIFLAG);
3772 }
3773 
3774 int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, u8 if_idx, bool enable)
3775 {
3776 	struct sk_buff *skb;
3777 	struct wmi_probe_req_report_cmd *p;
3778 
3779 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3780 	if (!skb)
3781 		return -ENOMEM;
3782 
3783 	ath6kl_dbg(ATH6KL_DBG_WMI, "probe_report_req_cmd: enable=%u\n",
3784 		   enable);
3785 	p = (struct wmi_probe_req_report_cmd *) skb->data;
3786 	p->enable = enable ? 1 : 0;
3787 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_PROBE_REQ_REPORT_CMDID,
3788 				   NO_SYNC_WMIFLAG);
3789 }
3790 
3791 int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u8 if_idx, u32 info_req_flags)
3792 {
3793 	struct sk_buff *skb;
3794 	struct wmi_get_p2p_info *p;
3795 
3796 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3797 	if (!skb)
3798 		return -ENOMEM;
3799 
3800 	ath6kl_dbg(ATH6KL_DBG_WMI, "info_req_cmd: flags=%x\n",
3801 		   info_req_flags);
3802 	p = (struct wmi_get_p2p_info *) skb->data;
3803 	p->info_req_flags = cpu_to_le32(info_req_flags);
3804 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_GET_P2P_INFO_CMDID,
3805 				   NO_SYNC_WMIFLAG);
3806 }
3807 
3808 int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx)
3809 {
3810 	ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl_cmd\n");
3811 	return ath6kl_wmi_simple_cmd(wmi, if_idx,
3812 				     WMI_CANCEL_REMAIN_ON_CHNL_CMDID);
3813 }
3814 
3815 int ath6kl_wmi_set_inact_period(struct wmi *wmi, u8 if_idx, int inact_timeout)
3816 {
3817 	struct sk_buff *skb;
3818 	struct wmi_set_inact_period_cmd *cmd;
3819 
3820 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3821 	if (!skb)
3822 		return -ENOMEM;
3823 
3824 	cmd = (struct wmi_set_inact_period_cmd *) skb->data;
3825 	cmd->inact_period = cpu_to_le32(inact_timeout);
3826 	cmd->num_null_func = 0;
3827 
3828 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_CONN_INACT_CMDID,
3829 				   NO_SYNC_WMIFLAG);
3830 }
3831 
3832 static void ath6kl_wmi_hb_challenge_resp_event(struct wmi *wmi, u8 *datap,
3833 					       int len)
3834 {
3835 	struct wmix_hb_challenge_resp_cmd *cmd;
3836 
3837 	if (len < sizeof(struct wmix_hb_challenge_resp_cmd))
3838 		return;
3839 
3840 	cmd = (struct wmix_hb_challenge_resp_cmd *) datap;
3841 	ath6kl_recovery_hb_event(wmi->parent_dev,
3842 				 le32_to_cpu(cmd->cookie));
3843 }
3844 
3845 static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb)
3846 {
3847 	struct wmix_cmd_hdr *cmd;
3848 	u32 len;
3849 	u16 id;
3850 	u8 *datap;
3851 	int ret = 0;
3852 
3853 	if (skb->len < sizeof(struct wmix_cmd_hdr)) {
3854 		ath6kl_err("bad packet 1\n");
3855 		return -EINVAL;
3856 	}
3857 
3858 	cmd = (struct wmix_cmd_hdr *) skb->data;
3859 	id = le32_to_cpu(cmd->cmd_id);
3860 
3861 	skb_pull(skb, sizeof(struct wmix_cmd_hdr));
3862 
3863 	datap = skb->data;
3864 	len = skb->len;
3865 
3866 	switch (id) {
3867 	case WMIX_HB_CHALLENGE_RESP_EVENTID:
3868 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event hb challenge resp\n");
3869 		ath6kl_wmi_hb_challenge_resp_event(wmi, datap, len);
3870 		break;
3871 	case WMIX_DBGLOG_EVENTID:
3872 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event dbglog len %d\n", len);
3873 		ath6kl_debug_fwlog_event(wmi->parent_dev, datap, len);
3874 		break;
3875 	default:
3876 		ath6kl_warn("unknown cmd id 0x%x\n", id);
3877 		ret = -EINVAL;
3878 		break;
3879 	}
3880 
3881 	return ret;
3882 }
3883 
3884 static int ath6kl_wmi_roam_tbl_event_rx(struct wmi *wmi, u8 *datap, int len)
3885 {
3886 	return ath6kl_debug_roam_tbl_event(wmi->parent_dev, datap, len);
3887 }
3888 
3889 /* Process interface specific wmi events, caller would free the datap */
3890 static int ath6kl_wmi_proc_events_vif(struct wmi *wmi, u16 if_idx, u16 cmd_id,
3891 					u8 *datap, u32 len)
3892 {
3893 	struct ath6kl_vif *vif;
3894 
3895 	vif = ath6kl_get_vif_by_index(wmi->parent_dev, if_idx);
3896 	if (!vif) {
3897 		ath6kl_dbg(ATH6KL_DBG_WMI,
3898 			   "Wmi event for unavailable vif, vif_index:%d\n",
3899 			    if_idx);
3900 		return -EINVAL;
3901 	}
3902 
3903 	switch (cmd_id) {
3904 	case WMI_CONNECT_EVENTID:
3905 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CONNECT_EVENTID\n");
3906 		return ath6kl_wmi_connect_event_rx(wmi, datap, len, vif);
3907 	case WMI_DISCONNECT_EVENTID:
3908 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DISCONNECT_EVENTID\n");
3909 		return ath6kl_wmi_disconnect_event_rx(wmi, datap, len, vif);
3910 	case WMI_TKIP_MICERR_EVENTID:
3911 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TKIP_MICERR_EVENTID\n");
3912 		return ath6kl_wmi_tkip_micerr_event_rx(wmi, datap, len, vif);
3913 	case WMI_BSSINFO_EVENTID:
3914 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_BSSINFO_EVENTID\n");
3915 		return ath6kl_wmi_bssinfo_event_rx(wmi, datap, len, vif);
3916 	case WMI_NEIGHBOR_REPORT_EVENTID:
3917 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_NEIGHBOR_REPORT_EVENTID\n");
3918 		return ath6kl_wmi_neighbor_report_event_rx(wmi, datap, len,
3919 							   vif);
3920 	case WMI_SCAN_COMPLETE_EVENTID:
3921 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SCAN_COMPLETE_EVENTID\n");
3922 		return ath6kl_wmi_scan_complete_rx(wmi, datap, len, vif);
3923 	case WMI_REPORT_STATISTICS_EVENTID:
3924 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_STATISTICS_EVENTID\n");
3925 		return ath6kl_wmi_stats_event_rx(wmi, datap, len, vif);
3926 	case WMI_CAC_EVENTID:
3927 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CAC_EVENTID\n");
3928 		return ath6kl_wmi_cac_event_rx(wmi, datap, len, vif);
3929 	case WMI_PSPOLL_EVENTID:
3930 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSPOLL_EVENTID\n");
3931 		return ath6kl_wmi_pspoll_event_rx(wmi, datap, len, vif);
3932 	case WMI_DTIMEXPIRY_EVENTID:
3933 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DTIMEXPIRY_EVENTID\n");
3934 		return ath6kl_wmi_dtimexpiry_event_rx(wmi, datap, len, vif);
3935 	case WMI_ADDBA_REQ_EVENTID:
3936 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_REQ_EVENTID\n");
3937 		return ath6kl_wmi_addba_req_event_rx(wmi, datap, len, vif);
3938 	case WMI_DELBA_REQ_EVENTID:
3939 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DELBA_REQ_EVENTID\n");
3940 		return ath6kl_wmi_delba_req_event_rx(wmi, datap, len, vif);
3941 	case WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID:
3942 		ath6kl_dbg(ATH6KL_DBG_WMI,
3943 			   "WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID");
3944 		return ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(wmi, vif);
3945 	case WMI_REMAIN_ON_CHNL_EVENTID:
3946 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REMAIN_ON_CHNL_EVENTID\n");
3947 		return ath6kl_wmi_remain_on_chnl_event_rx(wmi, datap, len, vif);
3948 	case WMI_CANCEL_REMAIN_ON_CHNL_EVENTID:
3949 		ath6kl_dbg(ATH6KL_DBG_WMI,
3950 			   "WMI_CANCEL_REMAIN_ON_CHNL_EVENTID\n");
3951 		return ath6kl_wmi_cancel_remain_on_chnl_event_rx(wmi, datap,
3952 								 len, vif);
3953 	case WMI_TX_STATUS_EVENTID:
3954 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_STATUS_EVENTID\n");
3955 		return ath6kl_wmi_tx_status_event_rx(wmi, datap, len, vif);
3956 	case WMI_RX_PROBE_REQ_EVENTID:
3957 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_PROBE_REQ_EVENTID\n");
3958 		return ath6kl_wmi_rx_probe_req_event_rx(wmi, datap, len, vif);
3959 	case WMI_RX_ACTION_EVENTID:
3960 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_ACTION_EVENTID\n");
3961 		return ath6kl_wmi_rx_action_event_rx(wmi, datap, len, vif);
3962 	case WMI_TXE_NOTIFY_EVENTID:
3963 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TXE_NOTIFY_EVENTID\n");
3964 		return ath6kl_wmi_txe_notify_event_rx(wmi, datap, len, vif);
3965 	default:
3966 		ath6kl_dbg(ATH6KL_DBG_WMI, "unknown cmd id 0x%x\n", cmd_id);
3967 		return -EINVAL;
3968 	}
3969 
3970 	return 0;
3971 }
3972 
3973 static int ath6kl_wmi_proc_events(struct wmi *wmi, struct sk_buff *skb)
3974 {
3975 	struct wmi_cmd_hdr *cmd;
3976 	int ret = 0;
3977 	u32 len;
3978 	u16 id;
3979 	u8 if_idx;
3980 	u8 *datap;
3981 
3982 	cmd = (struct wmi_cmd_hdr *) skb->data;
3983 	id = le16_to_cpu(cmd->cmd_id);
3984 	if_idx = le16_to_cpu(cmd->info1) & WMI_CMD_HDR_IF_ID_MASK;
3985 
3986 	skb_pull(skb, sizeof(struct wmi_cmd_hdr));
3987 	datap = skb->data;
3988 	len = skb->len;
3989 
3990 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi rx id %d len %d\n", id, len);
3991 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi rx ",
3992 			datap, len);
3993 
3994 	switch (id) {
3995 	case WMI_GET_BITRATE_CMDID:
3996 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_BITRATE_CMDID\n");
3997 		ret = ath6kl_wmi_bitrate_reply_rx(wmi, datap, len);
3998 		break;
3999 	case WMI_GET_CHANNEL_LIST_CMDID:
4000 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_CHANNEL_LIST_CMDID\n");
4001 		ret = ath6kl_wmi_ch_list_reply_rx(wmi, datap, len);
4002 		break;
4003 	case WMI_GET_TX_PWR_CMDID:
4004 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_TX_PWR_CMDID\n");
4005 		ret = ath6kl_wmi_tx_pwr_reply_rx(wmi, datap, len);
4006 		break;
4007 	case WMI_READY_EVENTID:
4008 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_READY_EVENTID\n");
4009 		ret = ath6kl_wmi_ready_event_rx(wmi, datap, len);
4010 		break;
4011 	case WMI_PEER_NODE_EVENTID:
4012 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PEER_NODE_EVENTID\n");
4013 		ret = ath6kl_wmi_peer_node_event_rx(wmi, datap, len);
4014 		break;
4015 	case WMI_REGDOMAIN_EVENTID:
4016 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REGDOMAIN_EVENTID\n");
4017 		ath6kl_wmi_regdomain_event(wmi, datap, len);
4018 		break;
4019 	case WMI_PSTREAM_TIMEOUT_EVENTID:
4020 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSTREAM_TIMEOUT_EVENTID\n");
4021 		ret = ath6kl_wmi_pstream_timeout_event_rx(wmi, datap, len);
4022 		break;
4023 	case WMI_CMDERROR_EVENTID:
4024 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CMDERROR_EVENTID\n");
4025 		ret = ath6kl_wmi_error_event_rx(wmi, datap, len);
4026 		break;
4027 	case WMI_RSSI_THRESHOLD_EVENTID:
4028 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RSSI_THRESHOLD_EVENTID\n");
4029 		ret = ath6kl_wmi_rssi_threshold_event_rx(wmi, datap, len);
4030 		break;
4031 	case WMI_ERROR_REPORT_EVENTID:
4032 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ERROR_REPORT_EVENTID\n");
4033 		break;
4034 	case WMI_OPT_RX_FRAME_EVENTID:
4035 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_OPT_RX_FRAME_EVENTID\n");
4036 		/* this event has been deprecated */
4037 		break;
4038 	case WMI_REPORT_ROAM_TBL_EVENTID:
4039 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_TBL_EVENTID\n");
4040 		ret = ath6kl_wmi_roam_tbl_event_rx(wmi, datap, len);
4041 		break;
4042 	case WMI_EXTENSION_EVENTID:
4043 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_EXTENSION_EVENTID\n");
4044 		ret = ath6kl_wmi_control_rx_xtnd(wmi, skb);
4045 		break;
4046 	case WMI_CHANNEL_CHANGE_EVENTID:
4047 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CHANNEL_CHANGE_EVENTID\n");
4048 		break;
4049 	case WMI_REPORT_ROAM_DATA_EVENTID:
4050 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_DATA_EVENTID\n");
4051 		break;
4052 	case WMI_TEST_EVENTID:
4053 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TEST_EVENTID\n");
4054 		ret = ath6kl_wmi_test_rx(wmi, datap, len);
4055 		break;
4056 	case WMI_GET_FIXRATES_CMDID:
4057 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_FIXRATES_CMDID\n");
4058 		ret = ath6kl_wmi_ratemask_reply_rx(wmi, datap, len);
4059 		break;
4060 	case WMI_TX_RETRY_ERR_EVENTID:
4061 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_RETRY_ERR_EVENTID\n");
4062 		break;
4063 	case WMI_SNR_THRESHOLD_EVENTID:
4064 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SNR_THRESHOLD_EVENTID\n");
4065 		ret = ath6kl_wmi_snr_threshold_event_rx(wmi, datap, len);
4066 		break;
4067 	case WMI_LQ_THRESHOLD_EVENTID:
4068 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_LQ_THRESHOLD_EVENTID\n");
4069 		break;
4070 	case WMI_APLIST_EVENTID:
4071 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_APLIST_EVENTID\n");
4072 		ret = ath6kl_wmi_aplist_event_rx(wmi, datap, len);
4073 		break;
4074 	case WMI_GET_KEEPALIVE_CMDID:
4075 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_KEEPALIVE_CMDID\n");
4076 		ret = ath6kl_wmi_keepalive_reply_rx(wmi, datap, len);
4077 		break;
4078 	case WMI_GET_WOW_LIST_EVENTID:
4079 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_WOW_LIST_EVENTID\n");
4080 		break;
4081 	case WMI_GET_PMKID_LIST_EVENTID:
4082 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_PMKID_LIST_EVENTID\n");
4083 		ret = ath6kl_wmi_get_pmkid_list_event_rx(wmi, datap, len);
4084 		break;
4085 	case WMI_SET_PARAMS_REPLY_EVENTID:
4086 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SET_PARAMS_REPLY_EVENTID\n");
4087 		break;
4088 	case WMI_ADDBA_RESP_EVENTID:
4089 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_RESP_EVENTID\n");
4090 		break;
4091 	case WMI_REPORT_BTCOEX_CONFIG_EVENTID:
4092 		ath6kl_dbg(ATH6KL_DBG_WMI,
4093 			   "WMI_REPORT_BTCOEX_CONFIG_EVENTID\n");
4094 		break;
4095 	case WMI_REPORT_BTCOEX_STATS_EVENTID:
4096 		ath6kl_dbg(ATH6KL_DBG_WMI,
4097 			   "WMI_REPORT_BTCOEX_STATS_EVENTID\n");
4098 		break;
4099 	case WMI_TX_COMPLETE_EVENTID:
4100 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_COMPLETE_EVENTID\n");
4101 		ret = ath6kl_wmi_tx_complete_event_rx(datap, len);
4102 		break;
4103 	case WMI_P2P_CAPABILITIES_EVENTID:
4104 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_CAPABILITIES_EVENTID\n");
4105 		ret = ath6kl_wmi_p2p_capabilities_event_rx(datap, len);
4106 		break;
4107 	case WMI_P2P_INFO_EVENTID:
4108 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_INFO_EVENTID\n");
4109 		ret = ath6kl_wmi_p2p_info_event_rx(datap, len);
4110 		break;
4111 	default:
4112 		/* may be the event is interface specific */
4113 		ret = ath6kl_wmi_proc_events_vif(wmi, if_idx, id, datap, len);
4114 		break;
4115 	}
4116 
4117 	dev_kfree_skb(skb);
4118 	return ret;
4119 }
4120 
4121 /* Control Path */
4122 int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb)
4123 {
4124 	if (WARN_ON(skb == NULL))
4125 		return -EINVAL;
4126 
4127 	if (skb->len < sizeof(struct wmi_cmd_hdr)) {
4128 		ath6kl_err("bad packet 1\n");
4129 		dev_kfree_skb(skb);
4130 		return -EINVAL;
4131 	}
4132 
4133 	trace_ath6kl_wmi_event(skb->data, skb->len);
4134 
4135 	return ath6kl_wmi_proc_events(wmi, skb);
4136 }
4137 
4138 void ath6kl_wmi_reset(struct wmi *wmi)
4139 {
4140 	spin_lock_bh(&wmi->lock);
4141 
4142 	wmi->fat_pipe_exist = 0;
4143 	memset(wmi->stream_exist_for_ac, 0, sizeof(wmi->stream_exist_for_ac));
4144 
4145 	spin_unlock_bh(&wmi->lock);
4146 }
4147 
4148 void *ath6kl_wmi_init(struct ath6kl *dev)
4149 {
4150 	struct wmi *wmi;
4151 
4152 	wmi = kzalloc(sizeof(struct wmi), GFP_KERNEL);
4153 	if (!wmi)
4154 		return NULL;
4155 
4156 	spin_lock_init(&wmi->lock);
4157 
4158 	wmi->parent_dev = dev;
4159 
4160 	wmi->pwr_mode = REC_POWER;
4161 
4162 	ath6kl_wmi_reset(wmi);
4163 
4164 	return wmi;
4165 }
4166 
4167 void ath6kl_wmi_shutdown(struct wmi *wmi)
4168 {
4169 	if (!wmi)
4170 		return;
4171 
4172 	kfree(wmi->last_mgmt_tx_frame);
4173 	kfree(wmi);
4174 }
4175