xref: /openbmc/linux/drivers/net/wireless/ath/ath6kl/wmi.c (revision 7b73a9c8)
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 	s32 rate;
1205 	u32 sgi, index;
1206 
1207 	if (len < sizeof(struct wmi_bit_rate_reply))
1208 		return -EINVAL;
1209 
1210 	reply = (struct wmi_bit_rate_reply *) datap;
1211 
1212 	ath6kl_dbg(ATH6KL_DBG_WMI, "rateindex %d\n", reply->rate_index);
1213 
1214 	if (reply->rate_index == (s8) RATE_AUTO) {
1215 		rate = RATE_AUTO;
1216 	} else {
1217 		index = reply->rate_index & 0x7f;
1218 		if (WARN_ON_ONCE(index > (RATE_MCS_7_40 + 1)))
1219 			return -EINVAL;
1220 
1221 		sgi = (reply->rate_index & 0x80) ? 1 : 0;
1222 		rate = wmi_rate_tbl[index][sgi];
1223 	}
1224 
1225 	ath6kl_wakeup_event(wmi->parent_dev);
1226 
1227 	return 0;
1228 }
1229 
1230 static int ath6kl_wmi_test_rx(struct wmi *wmi, u8 *datap, int len)
1231 {
1232 	ath6kl_tm_rx_event(wmi->parent_dev, datap, len);
1233 
1234 	return 0;
1235 }
1236 
1237 static int ath6kl_wmi_ratemask_reply_rx(struct wmi *wmi, u8 *datap, int len)
1238 {
1239 	if (len < sizeof(struct wmi_fix_rates_reply))
1240 		return -EINVAL;
1241 
1242 	ath6kl_wakeup_event(wmi->parent_dev);
1243 
1244 	return 0;
1245 }
1246 
1247 static int ath6kl_wmi_ch_list_reply_rx(struct wmi *wmi, u8 *datap, int len)
1248 {
1249 	if (len < sizeof(struct wmi_channel_list_reply))
1250 		return -EINVAL;
1251 
1252 	ath6kl_wakeup_event(wmi->parent_dev);
1253 
1254 	return 0;
1255 }
1256 
1257 static int ath6kl_wmi_tx_pwr_reply_rx(struct wmi *wmi, u8 *datap, int len)
1258 {
1259 	struct wmi_tx_pwr_reply *reply;
1260 
1261 	if (len < sizeof(struct wmi_tx_pwr_reply))
1262 		return -EINVAL;
1263 
1264 	reply = (struct wmi_tx_pwr_reply *) datap;
1265 	ath6kl_txpwr_rx_evt(wmi->parent_dev, reply->dbM);
1266 
1267 	return 0;
1268 }
1269 
1270 static int ath6kl_wmi_keepalive_reply_rx(struct wmi *wmi, u8 *datap, int len)
1271 {
1272 	if (len < sizeof(struct wmi_get_keepalive_cmd))
1273 		return -EINVAL;
1274 
1275 	ath6kl_wakeup_event(wmi->parent_dev);
1276 
1277 	return 0;
1278 }
1279 
1280 static int ath6kl_wmi_scan_complete_rx(struct wmi *wmi, u8 *datap, int len,
1281 				       struct ath6kl_vif *vif)
1282 {
1283 	struct wmi_scan_complete_event *ev;
1284 
1285 	ev = (struct wmi_scan_complete_event *) datap;
1286 
1287 	ath6kl_scan_complete_evt(vif, a_sle32_to_cpu(ev->status));
1288 	wmi->is_probe_ssid = false;
1289 
1290 	return 0;
1291 }
1292 
1293 static int ath6kl_wmi_neighbor_report_event_rx(struct wmi *wmi, u8 *datap,
1294 					       int len, struct ath6kl_vif *vif)
1295 {
1296 	struct wmi_neighbor_report_event *ev;
1297 	u8 i;
1298 
1299 	if (len < sizeof(*ev))
1300 		return -EINVAL;
1301 	ev = (struct wmi_neighbor_report_event *) datap;
1302 	if (struct_size(ev, neighbor, ev->num_neighbors) > len) {
1303 		ath6kl_dbg(ATH6KL_DBG_WMI,
1304 			   "truncated neighbor event (num=%d len=%d)\n",
1305 			   ev->num_neighbors, len);
1306 		return -EINVAL;
1307 	}
1308 	for (i = 0; i < ev->num_neighbors; i++) {
1309 		ath6kl_dbg(ATH6KL_DBG_WMI, "neighbor %d/%d - %pM 0x%x\n",
1310 			   i + 1, ev->num_neighbors, ev->neighbor[i].bssid,
1311 			   ev->neighbor[i].bss_flags);
1312 		cfg80211_pmksa_candidate_notify(vif->ndev, i,
1313 						ev->neighbor[i].bssid,
1314 						!!(ev->neighbor[i].bss_flags &
1315 						   WMI_PREAUTH_CAPABLE_BSS),
1316 						GFP_ATOMIC);
1317 	}
1318 
1319 	return 0;
1320 }
1321 
1322 /*
1323  * Target is reporting a programming error.  This is for
1324  * developer aid only.  Target only checks a few common violations
1325  * and it is responsibility of host to do all error checking.
1326  * Behavior of target after wmi error event is undefined.
1327  * A reset is recommended.
1328  */
1329 static int ath6kl_wmi_error_event_rx(struct wmi *wmi, u8 *datap, int len)
1330 {
1331 	const char *type = "unknown error";
1332 	struct wmi_cmd_error_event *ev;
1333 	ev = (struct wmi_cmd_error_event *) datap;
1334 
1335 	switch (ev->err_code) {
1336 	case INVALID_PARAM:
1337 		type = "invalid parameter";
1338 		break;
1339 	case ILLEGAL_STATE:
1340 		type = "invalid state";
1341 		break;
1342 	case INTERNAL_ERROR:
1343 		type = "internal error";
1344 		break;
1345 	}
1346 
1347 	ath6kl_dbg(ATH6KL_DBG_WMI, "programming error, cmd=%d %s\n",
1348 		   ev->cmd_id, type);
1349 
1350 	return 0;
1351 }
1352 
1353 static int ath6kl_wmi_stats_event_rx(struct wmi *wmi, u8 *datap, int len,
1354 				     struct ath6kl_vif *vif)
1355 {
1356 	ath6kl_tgt_stats_event(vif, datap, len);
1357 
1358 	return 0;
1359 }
1360 
1361 static u8 ath6kl_wmi_get_upper_threshold(s16 rssi,
1362 					 struct sq_threshold_params *sq_thresh,
1363 					 u32 size)
1364 {
1365 	u32 index;
1366 	u8 threshold = (u8) sq_thresh->upper_threshold[size - 1];
1367 
1368 	/* The list is already in sorted order. Get the next lower value */
1369 	for (index = 0; index < size; index++) {
1370 		if (rssi < sq_thresh->upper_threshold[index]) {
1371 			threshold = (u8) sq_thresh->upper_threshold[index];
1372 			break;
1373 		}
1374 	}
1375 
1376 	return threshold;
1377 }
1378 
1379 static u8 ath6kl_wmi_get_lower_threshold(s16 rssi,
1380 					 struct sq_threshold_params *sq_thresh,
1381 					 u32 size)
1382 {
1383 	u32 index;
1384 	u8 threshold = (u8) sq_thresh->lower_threshold[size - 1];
1385 
1386 	/* The list is already in sorted order. Get the next lower value */
1387 	for (index = 0; index < size; index++) {
1388 		if (rssi > sq_thresh->lower_threshold[index]) {
1389 			threshold = (u8) sq_thresh->lower_threshold[index];
1390 			break;
1391 		}
1392 	}
1393 
1394 	return threshold;
1395 }
1396 
1397 static int ath6kl_wmi_send_rssi_threshold_params(struct wmi *wmi,
1398 			struct wmi_rssi_threshold_params_cmd *rssi_cmd)
1399 {
1400 	struct sk_buff *skb;
1401 	struct wmi_rssi_threshold_params_cmd *cmd;
1402 
1403 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1404 	if (!skb)
1405 		return -ENOMEM;
1406 
1407 	cmd = (struct wmi_rssi_threshold_params_cmd *) skb->data;
1408 	memcpy(cmd, rssi_cmd, sizeof(struct wmi_rssi_threshold_params_cmd));
1409 
1410 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_RSSI_THRESHOLD_PARAMS_CMDID,
1411 				   NO_SYNC_WMIFLAG);
1412 }
1413 
1414 static int ath6kl_wmi_rssi_threshold_event_rx(struct wmi *wmi, u8 *datap,
1415 					      int len)
1416 {
1417 	struct wmi_rssi_threshold_event *reply;
1418 	struct wmi_rssi_threshold_params_cmd cmd;
1419 	struct sq_threshold_params *sq_thresh;
1420 	enum wmi_rssi_threshold_val new_threshold;
1421 	u8 upper_rssi_threshold, lower_rssi_threshold;
1422 	s16 rssi;
1423 	int ret;
1424 
1425 	if (len < sizeof(struct wmi_rssi_threshold_event))
1426 		return -EINVAL;
1427 
1428 	reply = (struct wmi_rssi_threshold_event *) datap;
1429 	new_threshold = (enum wmi_rssi_threshold_val) reply->range;
1430 	rssi = a_sle16_to_cpu(reply->rssi);
1431 
1432 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_RSSI];
1433 
1434 	/*
1435 	 * Identify the threshold breached and communicate that to the app.
1436 	 * After that install a new set of thresholds based on the signal
1437 	 * quality reported by the target
1438 	 */
1439 	if (new_threshold) {
1440 		/* Upper threshold breached */
1441 		if (rssi < sq_thresh->upper_threshold[0]) {
1442 			ath6kl_dbg(ATH6KL_DBG_WMI,
1443 				   "spurious upper rssi threshold event: %d\n",
1444 				   rssi);
1445 		} else if ((rssi < sq_thresh->upper_threshold[1]) &&
1446 			   (rssi >= sq_thresh->upper_threshold[0])) {
1447 			new_threshold = WMI_RSSI_THRESHOLD1_ABOVE;
1448 		} else if ((rssi < sq_thresh->upper_threshold[2]) &&
1449 			   (rssi >= sq_thresh->upper_threshold[1])) {
1450 			new_threshold = WMI_RSSI_THRESHOLD2_ABOVE;
1451 		} else if ((rssi < sq_thresh->upper_threshold[3]) &&
1452 			   (rssi >= sq_thresh->upper_threshold[2])) {
1453 			new_threshold = WMI_RSSI_THRESHOLD3_ABOVE;
1454 		} else if ((rssi < sq_thresh->upper_threshold[4]) &&
1455 			   (rssi >= sq_thresh->upper_threshold[3])) {
1456 			new_threshold = WMI_RSSI_THRESHOLD4_ABOVE;
1457 		} else if ((rssi < sq_thresh->upper_threshold[5]) &&
1458 			   (rssi >= sq_thresh->upper_threshold[4])) {
1459 			new_threshold = WMI_RSSI_THRESHOLD5_ABOVE;
1460 		} else if (rssi >= sq_thresh->upper_threshold[5]) {
1461 			new_threshold = WMI_RSSI_THRESHOLD6_ABOVE;
1462 		}
1463 	} else {
1464 		/* Lower threshold breached */
1465 		if (rssi > sq_thresh->lower_threshold[0]) {
1466 			ath6kl_dbg(ATH6KL_DBG_WMI,
1467 				   "spurious lower rssi threshold event: %d %d\n",
1468 				rssi, sq_thresh->lower_threshold[0]);
1469 		} else if ((rssi > sq_thresh->lower_threshold[1]) &&
1470 			   (rssi <= sq_thresh->lower_threshold[0])) {
1471 			new_threshold = WMI_RSSI_THRESHOLD6_BELOW;
1472 		} else if ((rssi > sq_thresh->lower_threshold[2]) &&
1473 			   (rssi <= sq_thresh->lower_threshold[1])) {
1474 			new_threshold = WMI_RSSI_THRESHOLD5_BELOW;
1475 		} else if ((rssi > sq_thresh->lower_threshold[3]) &&
1476 			   (rssi <= sq_thresh->lower_threshold[2])) {
1477 			new_threshold = WMI_RSSI_THRESHOLD4_BELOW;
1478 		} else if ((rssi > sq_thresh->lower_threshold[4]) &&
1479 			   (rssi <= sq_thresh->lower_threshold[3])) {
1480 			new_threshold = WMI_RSSI_THRESHOLD3_BELOW;
1481 		} else if ((rssi > sq_thresh->lower_threshold[5]) &&
1482 			   (rssi <= sq_thresh->lower_threshold[4])) {
1483 			new_threshold = WMI_RSSI_THRESHOLD2_BELOW;
1484 		} else if (rssi <= sq_thresh->lower_threshold[5]) {
1485 			new_threshold = WMI_RSSI_THRESHOLD1_BELOW;
1486 		}
1487 	}
1488 
1489 	/* Calculate and install the next set of thresholds */
1490 	lower_rssi_threshold = ath6kl_wmi_get_lower_threshold(rssi, sq_thresh,
1491 				       sq_thresh->lower_threshold_valid_count);
1492 	upper_rssi_threshold = ath6kl_wmi_get_upper_threshold(rssi, sq_thresh,
1493 				       sq_thresh->upper_threshold_valid_count);
1494 
1495 	/* Issue a wmi command to install the thresholds */
1496 	cmd.thresh_above1_val = a_cpu_to_sle16(upper_rssi_threshold);
1497 	cmd.thresh_below1_val = a_cpu_to_sle16(lower_rssi_threshold);
1498 	cmd.weight = sq_thresh->weight;
1499 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1500 
1501 	ret = ath6kl_wmi_send_rssi_threshold_params(wmi, &cmd);
1502 	if (ret) {
1503 		ath6kl_err("unable to configure rssi thresholds\n");
1504 		return -EIO;
1505 	}
1506 
1507 	return 0;
1508 }
1509 
1510 static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len,
1511 				   struct ath6kl_vif *vif)
1512 {
1513 	struct wmi_cac_event *reply;
1514 	struct ieee80211_tspec_ie *ts;
1515 	u16 active_tsids, tsinfo;
1516 	u8 tsid, index;
1517 	u8 ts_id;
1518 
1519 	if (len < sizeof(struct wmi_cac_event))
1520 		return -EINVAL;
1521 
1522 	reply = (struct wmi_cac_event *) datap;
1523 	if (reply->ac >= WMM_NUM_AC) {
1524 		ath6kl_err("invalid AC: %d\n", reply->ac);
1525 		return -EINVAL;
1526 	}
1527 
1528 	if ((reply->cac_indication == CAC_INDICATION_ADMISSION_RESP) &&
1529 	    (reply->status_code != IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED)) {
1530 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1531 		tsinfo = le16_to_cpu(ts->tsinfo);
1532 		tsid = (tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1533 			IEEE80211_WMM_IE_TSPEC_TID_MASK;
1534 
1535 		ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1536 					      reply->ac, tsid);
1537 	} else if (reply->cac_indication == CAC_INDICATION_NO_RESP) {
1538 		/*
1539 		 * Following assumes that there is only one outstanding
1540 		 * ADDTS request when this event is received
1541 		 */
1542 		spin_lock_bh(&wmi->lock);
1543 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1544 		spin_unlock_bh(&wmi->lock);
1545 
1546 		for (index = 0; index < sizeof(active_tsids) * 8; index++) {
1547 			if ((active_tsids >> index) & 1)
1548 				break;
1549 		}
1550 		if (index < (sizeof(active_tsids) * 8))
1551 			ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1552 						      reply->ac, index);
1553 	}
1554 
1555 	/*
1556 	 * Clear active tsids and Add missing handling
1557 	 * for delete qos stream from AP
1558 	 */
1559 	else if (reply->cac_indication == CAC_INDICATION_DELETE) {
1560 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1561 		tsinfo = le16_to_cpu(ts->tsinfo);
1562 		ts_id = ((tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1563 			 IEEE80211_WMM_IE_TSPEC_TID_MASK);
1564 
1565 		spin_lock_bh(&wmi->lock);
1566 		wmi->stream_exist_for_ac[reply->ac] &= ~(1 << ts_id);
1567 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1568 		spin_unlock_bh(&wmi->lock);
1569 
1570 		/* Indicate stream inactivity to driver layer only if all tsids
1571 		 * within this AC are deleted.
1572 		 */
1573 		if (!active_tsids) {
1574 			ath6kl_indicate_tx_activity(wmi->parent_dev, reply->ac,
1575 						    false);
1576 			wmi->fat_pipe_exist &= ~(1 << reply->ac);
1577 		}
1578 	}
1579 
1580 	return 0;
1581 }
1582 
1583 static int ath6kl_wmi_txe_notify_event_rx(struct wmi *wmi, u8 *datap, int len,
1584 					  struct ath6kl_vif *vif)
1585 {
1586 	struct wmi_txe_notify_event *ev;
1587 	u32 rate, pkts;
1588 
1589 	if (len < sizeof(*ev))
1590 		return -EINVAL;
1591 
1592 	if (vif->nw_type != INFRA_NETWORK ||
1593 	    !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY,
1594 		      vif->ar->fw_capabilities))
1595 		return -EOPNOTSUPP;
1596 
1597 	if (vif->sme_state != SME_CONNECTED)
1598 		return -ENOTCONN;
1599 
1600 	ev = (struct wmi_txe_notify_event *) datap;
1601 	rate = le32_to_cpu(ev->rate);
1602 	pkts = le32_to_cpu(ev->pkts);
1603 
1604 	ath6kl_dbg(ATH6KL_DBG_WMI, "TXE notify event: peer %pM rate %d%% pkts %d intvl %ds\n",
1605 		   vif->bssid, rate, pkts, vif->txe_intvl);
1606 
1607 	cfg80211_cqm_txe_notify(vif->ndev, vif->bssid, pkts,
1608 				rate, vif->txe_intvl, GFP_KERNEL);
1609 
1610 	return 0;
1611 }
1612 
1613 int ath6kl_wmi_set_txe_notify(struct wmi *wmi, u8 idx,
1614 			      u32 rate, u32 pkts, u32 intvl)
1615 {
1616 	struct sk_buff *skb;
1617 	struct wmi_txe_notify_cmd *cmd;
1618 
1619 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1620 	if (!skb)
1621 		return -ENOMEM;
1622 
1623 	cmd = (struct wmi_txe_notify_cmd *) skb->data;
1624 	cmd->rate = cpu_to_le32(rate);
1625 	cmd->pkts = cpu_to_le32(pkts);
1626 	cmd->intvl = cpu_to_le32(intvl);
1627 
1628 	return ath6kl_wmi_cmd_send(wmi, idx, skb, WMI_SET_TXE_NOTIFY_CMDID,
1629 				   NO_SYNC_WMIFLAG);
1630 }
1631 
1632 int ath6kl_wmi_set_rssi_filter_cmd(struct wmi *wmi, u8 if_idx, s8 rssi)
1633 {
1634 	struct sk_buff *skb;
1635 	struct wmi_set_rssi_filter_cmd *cmd;
1636 	int ret;
1637 
1638 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1639 	if (!skb)
1640 		return -ENOMEM;
1641 
1642 	cmd = (struct wmi_set_rssi_filter_cmd *) skb->data;
1643 	cmd->rssi = rssi;
1644 
1645 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_RSSI_FILTER_CMDID,
1646 				  NO_SYNC_WMIFLAG);
1647 	return ret;
1648 }
1649 
1650 static int ath6kl_wmi_send_snr_threshold_params(struct wmi *wmi,
1651 			struct wmi_snr_threshold_params_cmd *snr_cmd)
1652 {
1653 	struct sk_buff *skb;
1654 	struct wmi_snr_threshold_params_cmd *cmd;
1655 
1656 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1657 	if (!skb)
1658 		return -ENOMEM;
1659 
1660 	cmd = (struct wmi_snr_threshold_params_cmd *) skb->data;
1661 	memcpy(cmd, snr_cmd, sizeof(struct wmi_snr_threshold_params_cmd));
1662 
1663 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SNR_THRESHOLD_PARAMS_CMDID,
1664 				   NO_SYNC_WMIFLAG);
1665 }
1666 
1667 static int ath6kl_wmi_snr_threshold_event_rx(struct wmi *wmi, u8 *datap,
1668 					     int len)
1669 {
1670 	struct wmi_snr_threshold_event *reply;
1671 	struct sq_threshold_params *sq_thresh;
1672 	struct wmi_snr_threshold_params_cmd cmd;
1673 	enum wmi_snr_threshold_val new_threshold;
1674 	u8 upper_snr_threshold, lower_snr_threshold;
1675 	s16 snr;
1676 	int ret;
1677 
1678 	if (len < sizeof(struct wmi_snr_threshold_event))
1679 		return -EINVAL;
1680 
1681 	reply = (struct wmi_snr_threshold_event *) datap;
1682 
1683 	new_threshold = (enum wmi_snr_threshold_val) reply->range;
1684 	snr = reply->snr;
1685 
1686 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_SNR];
1687 
1688 	/*
1689 	 * Identify the threshold breached and communicate that to the app.
1690 	 * After that install a new set of thresholds based on the signal
1691 	 * quality reported by the target.
1692 	 */
1693 	if (new_threshold) {
1694 		/* Upper threshold breached */
1695 		if (snr < sq_thresh->upper_threshold[0]) {
1696 			ath6kl_dbg(ATH6KL_DBG_WMI,
1697 				   "spurious upper snr threshold event: %d\n",
1698 				   snr);
1699 		} else if ((snr < sq_thresh->upper_threshold[1]) &&
1700 			   (snr >= sq_thresh->upper_threshold[0])) {
1701 			new_threshold = WMI_SNR_THRESHOLD1_ABOVE;
1702 		} else if ((snr < sq_thresh->upper_threshold[2]) &&
1703 			   (snr >= sq_thresh->upper_threshold[1])) {
1704 			new_threshold = WMI_SNR_THRESHOLD2_ABOVE;
1705 		} else if ((snr < sq_thresh->upper_threshold[3]) &&
1706 			   (snr >= sq_thresh->upper_threshold[2])) {
1707 			new_threshold = WMI_SNR_THRESHOLD3_ABOVE;
1708 		} else if (snr >= sq_thresh->upper_threshold[3]) {
1709 			new_threshold = WMI_SNR_THRESHOLD4_ABOVE;
1710 		}
1711 	} else {
1712 		/* Lower threshold breached */
1713 		if (snr > sq_thresh->lower_threshold[0]) {
1714 			ath6kl_dbg(ATH6KL_DBG_WMI,
1715 				   "spurious lower snr threshold event: %d\n",
1716 				   sq_thresh->lower_threshold[0]);
1717 		} else if ((snr > sq_thresh->lower_threshold[1]) &&
1718 			   (snr <= sq_thresh->lower_threshold[0])) {
1719 			new_threshold = WMI_SNR_THRESHOLD4_BELOW;
1720 		} else if ((snr > sq_thresh->lower_threshold[2]) &&
1721 			   (snr <= sq_thresh->lower_threshold[1])) {
1722 			new_threshold = WMI_SNR_THRESHOLD3_BELOW;
1723 		} else if ((snr > sq_thresh->lower_threshold[3]) &&
1724 			   (snr <= sq_thresh->lower_threshold[2])) {
1725 			new_threshold = WMI_SNR_THRESHOLD2_BELOW;
1726 		} else if (snr <= sq_thresh->lower_threshold[3]) {
1727 			new_threshold = WMI_SNR_THRESHOLD1_BELOW;
1728 		}
1729 	}
1730 
1731 	/* Calculate and install the next set of thresholds */
1732 	lower_snr_threshold = ath6kl_wmi_get_lower_threshold(snr, sq_thresh,
1733 				       sq_thresh->lower_threshold_valid_count);
1734 	upper_snr_threshold = ath6kl_wmi_get_upper_threshold(snr, sq_thresh,
1735 				       sq_thresh->upper_threshold_valid_count);
1736 
1737 	/* Issue a wmi command to install the thresholds */
1738 	cmd.thresh_above1_val = upper_snr_threshold;
1739 	cmd.thresh_below1_val = lower_snr_threshold;
1740 	cmd.weight = sq_thresh->weight;
1741 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1742 
1743 	ath6kl_dbg(ATH6KL_DBG_WMI,
1744 		   "snr: %d, threshold: %d, lower: %d, upper: %d\n",
1745 		   snr, new_threshold,
1746 		   lower_snr_threshold, upper_snr_threshold);
1747 
1748 	ret = ath6kl_wmi_send_snr_threshold_params(wmi, &cmd);
1749 	if (ret) {
1750 		ath6kl_err("unable to configure snr threshold\n");
1751 		return -EIO;
1752 	}
1753 
1754 	return 0;
1755 }
1756 
1757 static int ath6kl_wmi_aplist_event_rx(struct wmi *wmi, u8 *datap, int len)
1758 {
1759 	u16 ap_info_entry_size;
1760 	struct wmi_aplist_event *ev = (struct wmi_aplist_event *) datap;
1761 	struct wmi_ap_info_v1 *ap_info_v1;
1762 	u8 index;
1763 
1764 	if (len < sizeof(struct wmi_aplist_event) ||
1765 	    ev->ap_list_ver != APLIST_VER1)
1766 		return -EINVAL;
1767 
1768 	ap_info_entry_size = sizeof(struct wmi_ap_info_v1);
1769 	ap_info_v1 = (struct wmi_ap_info_v1 *) ev->ap_list;
1770 
1771 	ath6kl_dbg(ATH6KL_DBG_WMI,
1772 		   "number of APs in aplist event: %d\n", ev->num_ap);
1773 
1774 	if (len < (int) (sizeof(struct wmi_aplist_event) +
1775 			 (ev->num_ap - 1) * ap_info_entry_size))
1776 		return -EINVAL;
1777 
1778 	/* AP list version 1 contents */
1779 	for (index = 0; index < ev->num_ap; index++) {
1780 		ath6kl_dbg(ATH6KL_DBG_WMI, "AP#%d BSSID %pM Channel %d\n",
1781 			   index, ap_info_v1->bssid, ap_info_v1->channel);
1782 		ap_info_v1++;
1783 	}
1784 
1785 	return 0;
1786 }
1787 
1788 int ath6kl_wmi_cmd_send(struct wmi *wmi, u8 if_idx, struct sk_buff *skb,
1789 			enum wmi_cmd_id cmd_id, enum wmi_sync_flag sync_flag)
1790 {
1791 	struct wmi_cmd_hdr *cmd_hdr;
1792 	enum htc_endpoint_id ep_id = wmi->ep_id;
1793 	int ret;
1794 	u16 info1;
1795 
1796 	if (WARN_ON(skb == NULL ||
1797 		    (if_idx > (wmi->parent_dev->vif_max - 1)))) {
1798 		dev_kfree_skb(skb);
1799 		return -EINVAL;
1800 	}
1801 
1802 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi tx id %d len %d flag %d\n",
1803 		   cmd_id, skb->len, sync_flag);
1804 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi tx ",
1805 			skb->data, skb->len);
1806 
1807 	if (sync_flag >= END_WMIFLAG) {
1808 		dev_kfree_skb(skb);
1809 		return -EINVAL;
1810 	}
1811 
1812 	if ((sync_flag == SYNC_BEFORE_WMIFLAG) ||
1813 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1814 		/*
1815 		 * Make sure all data currently queued is transmitted before
1816 		 * the cmd execution.  Establish a new sync point.
1817 		 */
1818 		ath6kl_wmi_sync_point(wmi, if_idx);
1819 	}
1820 
1821 	skb_push(skb, sizeof(struct wmi_cmd_hdr));
1822 
1823 	cmd_hdr = (struct wmi_cmd_hdr *) skb->data;
1824 	cmd_hdr->cmd_id = cpu_to_le16(cmd_id);
1825 	info1 = if_idx & WMI_CMD_HDR_IF_ID_MASK;
1826 	cmd_hdr->info1 = cpu_to_le16(info1);
1827 
1828 	/* Only for OPT_TX_CMD, use BE endpoint. */
1829 	if (cmd_id == WMI_OPT_TX_FRAME_CMDID) {
1830 		ret = ath6kl_wmi_data_hdr_add(wmi, skb, OPT_MSGTYPE,
1831 					      false, false, 0, NULL, if_idx);
1832 		if (ret) {
1833 			dev_kfree_skb(skb);
1834 			return ret;
1835 		}
1836 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev, WMM_AC_BE);
1837 	}
1838 
1839 	ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
1840 
1841 	if ((sync_flag == SYNC_AFTER_WMIFLAG) ||
1842 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1843 		/*
1844 		 * Make sure all new data queued waits for the command to
1845 		 * execute. Establish a new sync point.
1846 		 */
1847 		ath6kl_wmi_sync_point(wmi, if_idx);
1848 	}
1849 
1850 	return 0;
1851 }
1852 
1853 int ath6kl_wmi_connect_cmd(struct wmi *wmi, u8 if_idx,
1854 			   enum network_type nw_type,
1855 			   enum dot11_auth_mode dot11_auth_mode,
1856 			   enum auth_mode auth_mode,
1857 			   enum ath6kl_crypto_type pairwise_crypto,
1858 			   u8 pairwise_crypto_len,
1859 			   enum ath6kl_crypto_type group_crypto,
1860 			   u8 group_crypto_len, int ssid_len, u8 *ssid,
1861 			   u8 *bssid, u16 channel, u32 ctrl_flags,
1862 			   u8 nw_subtype)
1863 {
1864 	struct sk_buff *skb;
1865 	struct wmi_connect_cmd *cc;
1866 	int ret;
1867 
1868 	ath6kl_dbg(ATH6KL_DBG_WMI,
1869 		   "wmi connect bssid %pM freq %d flags 0x%x ssid_len %d "
1870 		   "type %d dot11_auth %d auth %d pairwise %d group %d\n",
1871 		   bssid, channel, ctrl_flags, ssid_len, nw_type,
1872 		   dot11_auth_mode, auth_mode, pairwise_crypto, group_crypto);
1873 	ath6kl_dbg_dump(ATH6KL_DBG_WMI, NULL, "ssid ", ssid, ssid_len);
1874 
1875 	wmi->traffic_class = 100;
1876 
1877 	if ((pairwise_crypto == NONE_CRYPT) && (group_crypto != NONE_CRYPT))
1878 		return -EINVAL;
1879 
1880 	if ((pairwise_crypto != NONE_CRYPT) && (group_crypto == NONE_CRYPT))
1881 		return -EINVAL;
1882 
1883 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_connect_cmd));
1884 	if (!skb)
1885 		return -ENOMEM;
1886 
1887 	cc = (struct wmi_connect_cmd *) skb->data;
1888 
1889 	if (ssid_len)
1890 		memcpy(cc->ssid, ssid, ssid_len);
1891 
1892 	cc->ssid_len = ssid_len;
1893 	cc->nw_type = nw_type;
1894 	cc->dot11_auth_mode = dot11_auth_mode;
1895 	cc->auth_mode = auth_mode;
1896 	cc->prwise_crypto_type = pairwise_crypto;
1897 	cc->prwise_crypto_len = pairwise_crypto_len;
1898 	cc->grp_crypto_type = group_crypto;
1899 	cc->grp_crypto_len = group_crypto_len;
1900 	cc->ch = cpu_to_le16(channel);
1901 	cc->ctrl_flags = cpu_to_le32(ctrl_flags);
1902 	cc->nw_subtype = nw_subtype;
1903 
1904 	if (bssid != NULL)
1905 		memcpy(cc->bssid, bssid, ETH_ALEN);
1906 
1907 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CONNECT_CMDID,
1908 				  NO_SYNC_WMIFLAG);
1909 
1910 	return ret;
1911 }
1912 
1913 int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 if_idx, u8 *bssid,
1914 			     u16 channel)
1915 {
1916 	struct sk_buff *skb;
1917 	struct wmi_reconnect_cmd *cc;
1918 	int ret;
1919 
1920 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi reconnect bssid %pM freq %d\n",
1921 		   bssid, channel);
1922 
1923 	wmi->traffic_class = 100;
1924 
1925 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_reconnect_cmd));
1926 	if (!skb)
1927 		return -ENOMEM;
1928 
1929 	cc = (struct wmi_reconnect_cmd *) skb->data;
1930 	cc->channel = cpu_to_le16(channel);
1931 
1932 	if (bssid != NULL)
1933 		memcpy(cc->bssid, bssid, ETH_ALEN);
1934 
1935 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RECONNECT_CMDID,
1936 				  NO_SYNC_WMIFLAG);
1937 
1938 	return ret;
1939 }
1940 
1941 int ath6kl_wmi_disconnect_cmd(struct wmi *wmi, u8 if_idx)
1942 {
1943 	int ret;
1944 
1945 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi disconnect\n");
1946 
1947 	wmi->traffic_class = 100;
1948 
1949 	/* Disconnect command does not need to do a SYNC before. */
1950 	ret = ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_DISCONNECT_CMDID);
1951 
1952 	return ret;
1953 }
1954 
1955 /* ath6kl_wmi_start_scan_cmd is to be deprecated. Use
1956  * ath6kl_wmi_begin_scan_cmd instead. The new function supports P2P
1957  * mgmt operations using station interface.
1958  */
1959 static int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx,
1960 				    enum wmi_scan_type scan_type,
1961 				    u32 force_fgscan, u32 is_legacy,
1962 				    u32 home_dwell_time,
1963 				    u32 force_scan_interval,
1964 				    s8 num_chan, u16 *ch_list)
1965 {
1966 	struct sk_buff *skb;
1967 	struct wmi_start_scan_cmd *sc;
1968 	s8 size;
1969 	int i, ret;
1970 
1971 	size = sizeof(struct wmi_start_scan_cmd);
1972 
1973 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
1974 		return -EINVAL;
1975 
1976 	if (num_chan > WMI_MAX_CHANNELS)
1977 		return -EINVAL;
1978 
1979 	if (num_chan)
1980 		size += sizeof(u16) * (num_chan - 1);
1981 
1982 	skb = ath6kl_wmi_get_new_buf(size);
1983 	if (!skb)
1984 		return -ENOMEM;
1985 
1986 	sc = (struct wmi_start_scan_cmd *) skb->data;
1987 	sc->scan_type = scan_type;
1988 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
1989 	sc->is_legacy = cpu_to_le32(is_legacy);
1990 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
1991 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
1992 	sc->num_ch = num_chan;
1993 
1994 	for (i = 0; i < num_chan; i++)
1995 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
1996 
1997 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_START_SCAN_CMDID,
1998 				  NO_SYNC_WMIFLAG);
1999 
2000 	return ret;
2001 }
2002 
2003 /*
2004  * beginscan supports (compared to old startscan) P2P mgmt operations using
2005  * station interface, send additional information like supported rates to
2006  * advertise and xmit rates for probe requests
2007  */
2008 int ath6kl_wmi_beginscan_cmd(struct wmi *wmi, u8 if_idx,
2009 			     enum wmi_scan_type scan_type,
2010 			     u32 force_fgscan, u32 is_legacy,
2011 			     u32 home_dwell_time, u32 force_scan_interval,
2012 			     s8 num_chan, u16 *ch_list, u32 no_cck, u32 *rates)
2013 {
2014 	struct ieee80211_supported_band *sband;
2015 	struct sk_buff *skb;
2016 	struct wmi_begin_scan_cmd *sc;
2017 	s8 size, *supp_rates;
2018 	int i, band, ret;
2019 	struct ath6kl *ar = wmi->parent_dev;
2020 	int num_rates;
2021 	u32 ratemask;
2022 
2023 	if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
2024 		      ar->fw_capabilities)) {
2025 		return ath6kl_wmi_startscan_cmd(wmi, if_idx,
2026 						scan_type, force_fgscan,
2027 						is_legacy, home_dwell_time,
2028 						force_scan_interval,
2029 						num_chan, ch_list);
2030 	}
2031 
2032 	size = sizeof(struct wmi_begin_scan_cmd);
2033 
2034 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
2035 		return -EINVAL;
2036 
2037 	if (num_chan > WMI_MAX_CHANNELS)
2038 		return -EINVAL;
2039 
2040 	if (num_chan)
2041 		size += sizeof(u16) * (num_chan - 1);
2042 
2043 	skb = ath6kl_wmi_get_new_buf(size);
2044 	if (!skb)
2045 		return -ENOMEM;
2046 
2047 	sc = (struct wmi_begin_scan_cmd *) skb->data;
2048 	sc->scan_type = scan_type;
2049 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
2050 	sc->is_legacy = cpu_to_le32(is_legacy);
2051 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
2052 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
2053 	sc->no_cck = cpu_to_le32(no_cck);
2054 	sc->num_ch = num_chan;
2055 
2056 	for (band = 0; band < NUM_NL80211_BANDS; band++) {
2057 		sband = ar->wiphy->bands[band];
2058 
2059 		if (!sband)
2060 			continue;
2061 
2062 		if (WARN_ON(band >= ATH6KL_NUM_BANDS))
2063 			break;
2064 
2065 		ratemask = rates[band];
2066 		supp_rates = sc->supp_rates[band].rates;
2067 		num_rates = 0;
2068 
2069 		for (i = 0; i < sband->n_bitrates; i++) {
2070 			if ((BIT(i) & ratemask) == 0)
2071 				continue; /* skip rate */
2072 			supp_rates[num_rates++] =
2073 			    (u8) (sband->bitrates[i].bitrate / 5);
2074 		}
2075 		sc->supp_rates[band].nrates = num_rates;
2076 	}
2077 
2078 	for (i = 0; i < num_chan; i++)
2079 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
2080 
2081 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_BEGIN_SCAN_CMDID,
2082 				  NO_SYNC_WMIFLAG);
2083 
2084 	return ret;
2085 }
2086 
2087 int ath6kl_wmi_enable_sched_scan_cmd(struct wmi *wmi, u8 if_idx, bool enable)
2088 {
2089 	struct sk_buff *skb;
2090 	struct wmi_enable_sched_scan_cmd *sc;
2091 	int ret;
2092 
2093 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2094 	if (!skb)
2095 		return -ENOMEM;
2096 
2097 	ath6kl_dbg(ATH6KL_DBG_WMI, "%s scheduled scan on vif %d\n",
2098 		   enable ? "enabling" : "disabling", if_idx);
2099 	sc = (struct wmi_enable_sched_scan_cmd *) skb->data;
2100 	sc->enable = enable ? 1 : 0;
2101 
2102 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2103 				  WMI_ENABLE_SCHED_SCAN_CMDID,
2104 				  NO_SYNC_WMIFLAG);
2105 	return ret;
2106 }
2107 
2108 int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u8 if_idx,
2109 			      u16 fg_start_sec,
2110 			      u16 fg_end_sec, u16 bg_sec,
2111 			      u16 minact_chdw_msec, u16 maxact_chdw_msec,
2112 			      u16 pas_chdw_msec, u8 short_scan_ratio,
2113 			      u8 scan_ctrl_flag, u32 max_dfsch_act_time,
2114 			      u16 maxact_scan_per_ssid)
2115 {
2116 	struct sk_buff *skb;
2117 	struct wmi_scan_params_cmd *sc;
2118 	int ret;
2119 
2120 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2121 	if (!skb)
2122 		return -ENOMEM;
2123 
2124 	sc = (struct wmi_scan_params_cmd *) skb->data;
2125 	sc->fg_start_period = cpu_to_le16(fg_start_sec);
2126 	sc->fg_end_period = cpu_to_le16(fg_end_sec);
2127 	sc->bg_period = cpu_to_le16(bg_sec);
2128 	sc->minact_chdwell_time = cpu_to_le16(minact_chdw_msec);
2129 	sc->maxact_chdwell_time = cpu_to_le16(maxact_chdw_msec);
2130 	sc->pas_chdwell_time = cpu_to_le16(pas_chdw_msec);
2131 	sc->short_scan_ratio = short_scan_ratio;
2132 	sc->scan_ctrl_flags = scan_ctrl_flag;
2133 	sc->max_dfsch_act_time = cpu_to_le32(max_dfsch_act_time);
2134 	sc->maxact_scan_per_ssid = cpu_to_le16(maxact_scan_per_ssid);
2135 
2136 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_SCAN_PARAMS_CMDID,
2137 				  NO_SYNC_WMIFLAG);
2138 	return ret;
2139 }
2140 
2141 int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 if_idx, u8 filter, u32 ie_mask)
2142 {
2143 	struct sk_buff *skb;
2144 	struct wmi_bss_filter_cmd *cmd;
2145 	int ret;
2146 
2147 	if (filter >= LAST_BSS_FILTER)
2148 		return -EINVAL;
2149 
2150 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2151 	if (!skb)
2152 		return -ENOMEM;
2153 
2154 	cmd = (struct wmi_bss_filter_cmd *) skb->data;
2155 	cmd->bss_filter = filter;
2156 	cmd->ie_mask = cpu_to_le32(ie_mask);
2157 
2158 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BSS_FILTER_CMDID,
2159 				  NO_SYNC_WMIFLAG);
2160 	return ret;
2161 }
2162 
2163 int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 if_idx, u8 index, u8 flag,
2164 			      u8 ssid_len, u8 *ssid)
2165 {
2166 	struct sk_buff *skb;
2167 	struct wmi_probed_ssid_cmd *cmd;
2168 	int ret;
2169 
2170 	if (index >= MAX_PROBED_SSIDS)
2171 		return -EINVAL;
2172 
2173 	if (ssid_len > sizeof(cmd->ssid))
2174 		return -EINVAL;
2175 
2176 	if ((flag & (DISABLE_SSID_FLAG | ANY_SSID_FLAG)) && (ssid_len > 0))
2177 		return -EINVAL;
2178 
2179 	if ((flag & SPECIFIC_SSID_FLAG) && !ssid_len)
2180 		return -EINVAL;
2181 
2182 	if (flag & SPECIFIC_SSID_FLAG)
2183 		wmi->is_probe_ssid = true;
2184 
2185 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2186 	if (!skb)
2187 		return -ENOMEM;
2188 
2189 	cmd = (struct wmi_probed_ssid_cmd *) skb->data;
2190 	cmd->entry_index = index;
2191 	cmd->flag = flag;
2192 	cmd->ssid_len = ssid_len;
2193 	memcpy(cmd->ssid, ssid, ssid_len);
2194 
2195 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PROBED_SSID_CMDID,
2196 				  NO_SYNC_WMIFLAG);
2197 	return ret;
2198 }
2199 
2200 int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u8 if_idx,
2201 				  u16 listen_interval,
2202 				  u16 listen_beacons)
2203 {
2204 	struct sk_buff *skb;
2205 	struct wmi_listen_int_cmd *cmd;
2206 	int ret;
2207 
2208 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2209 	if (!skb)
2210 		return -ENOMEM;
2211 
2212 	cmd = (struct wmi_listen_int_cmd *) skb->data;
2213 	cmd->listen_intvl = cpu_to_le16(listen_interval);
2214 	cmd->num_beacons = cpu_to_le16(listen_beacons);
2215 
2216 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LISTEN_INT_CMDID,
2217 				  NO_SYNC_WMIFLAG);
2218 	return ret;
2219 }
2220 
2221 int ath6kl_wmi_bmisstime_cmd(struct wmi *wmi, u8 if_idx,
2222 			     u16 bmiss_time, u16 num_beacons)
2223 {
2224 	struct sk_buff *skb;
2225 	struct wmi_bmiss_time_cmd *cmd;
2226 	int ret;
2227 
2228 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2229 	if (!skb)
2230 		return -ENOMEM;
2231 
2232 	cmd = (struct wmi_bmiss_time_cmd *) skb->data;
2233 	cmd->bmiss_time = cpu_to_le16(bmiss_time);
2234 	cmd->num_beacons = cpu_to_le16(num_beacons);
2235 
2236 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BMISS_TIME_CMDID,
2237 				  NO_SYNC_WMIFLAG);
2238 	return ret;
2239 }
2240 
2241 int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 if_idx, u8 pwr_mode)
2242 {
2243 	struct sk_buff *skb;
2244 	struct wmi_power_mode_cmd *cmd;
2245 	int ret;
2246 
2247 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2248 	if (!skb)
2249 		return -ENOMEM;
2250 
2251 	cmd = (struct wmi_power_mode_cmd *) skb->data;
2252 	cmd->pwr_mode = pwr_mode;
2253 	wmi->pwr_mode = pwr_mode;
2254 
2255 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_MODE_CMDID,
2256 				  NO_SYNC_WMIFLAG);
2257 	return ret;
2258 }
2259 
2260 int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u8 if_idx, u16 idle_period,
2261 			    u16 ps_poll_num, u16 dtim_policy,
2262 			    u16 tx_wakeup_policy, u16 num_tx_to_wakeup,
2263 			    u16 ps_fail_event_policy)
2264 {
2265 	struct sk_buff *skb;
2266 	struct wmi_power_params_cmd *pm;
2267 	int ret;
2268 
2269 	skb = ath6kl_wmi_get_new_buf(sizeof(*pm));
2270 	if (!skb)
2271 		return -ENOMEM;
2272 
2273 	pm = (struct wmi_power_params_cmd *)skb->data;
2274 	pm->idle_period = cpu_to_le16(idle_period);
2275 	pm->pspoll_number = cpu_to_le16(ps_poll_num);
2276 	pm->dtim_policy = cpu_to_le16(dtim_policy);
2277 	pm->tx_wakeup_policy = cpu_to_le16(tx_wakeup_policy);
2278 	pm->num_tx_to_wakeup = cpu_to_le16(num_tx_to_wakeup);
2279 	pm->ps_fail_event_policy = cpu_to_le16(ps_fail_event_policy);
2280 
2281 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_PARAMS_CMDID,
2282 				  NO_SYNC_WMIFLAG);
2283 	return ret;
2284 }
2285 
2286 int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 if_idx, u8 timeout)
2287 {
2288 	struct sk_buff *skb;
2289 	struct wmi_disc_timeout_cmd *cmd;
2290 	int ret;
2291 
2292 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2293 	if (!skb)
2294 		return -ENOMEM;
2295 
2296 	cmd = (struct wmi_disc_timeout_cmd *) skb->data;
2297 	cmd->discon_timeout = timeout;
2298 
2299 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_DISC_TIMEOUT_CMDID,
2300 				  NO_SYNC_WMIFLAG);
2301 
2302 	if (ret == 0)
2303 		ath6kl_debug_set_disconnect_timeout(wmi->parent_dev, timeout);
2304 
2305 	return ret;
2306 }
2307 
2308 int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index,
2309 			  enum ath6kl_crypto_type key_type,
2310 			  u8 key_usage, u8 key_len,
2311 			  u8 *key_rsc, unsigned int key_rsc_len,
2312 			  u8 *key_material,
2313 			  u8 key_op_ctrl, u8 *mac_addr,
2314 			  enum wmi_sync_flag sync_flag)
2315 {
2316 	struct sk_buff *skb;
2317 	struct wmi_add_cipher_key_cmd *cmd;
2318 	int ret;
2319 
2320 	ath6kl_dbg(ATH6KL_DBG_WMI,
2321 		   "addkey cmd: key_index=%u key_type=%d key_usage=%d key_len=%d key_op_ctrl=%d\n",
2322 		   key_index, key_type, key_usage, key_len, key_op_ctrl);
2323 
2324 	if ((key_index > WMI_MAX_KEY_INDEX) || (key_len > WMI_MAX_KEY_LEN) ||
2325 	    (key_material == NULL) || key_rsc_len > 8)
2326 		return -EINVAL;
2327 
2328 	if ((WEP_CRYPT != key_type) && (NULL == key_rsc))
2329 		return -EINVAL;
2330 
2331 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2332 	if (!skb)
2333 		return -ENOMEM;
2334 
2335 	cmd = (struct wmi_add_cipher_key_cmd *) skb->data;
2336 	cmd->key_index = key_index;
2337 	cmd->key_type = key_type;
2338 	cmd->key_usage = key_usage;
2339 	cmd->key_len = key_len;
2340 	memcpy(cmd->key, key_material, key_len);
2341 
2342 	if (key_rsc != NULL)
2343 		memcpy(cmd->key_rsc, key_rsc, key_rsc_len);
2344 
2345 	cmd->key_op_ctrl = key_op_ctrl;
2346 
2347 	if (mac_addr)
2348 		memcpy(cmd->key_mac_addr, mac_addr, ETH_ALEN);
2349 
2350 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_CIPHER_KEY_CMDID,
2351 				  sync_flag);
2352 
2353 	return ret;
2354 }
2355 
2356 int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 if_idx, const u8 *krk)
2357 {
2358 	struct sk_buff *skb;
2359 	struct wmi_add_krk_cmd *cmd;
2360 	int ret;
2361 
2362 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2363 	if (!skb)
2364 		return -ENOMEM;
2365 
2366 	cmd = (struct wmi_add_krk_cmd *) skb->data;
2367 	memcpy(cmd->krk, krk, WMI_KRK_LEN);
2368 
2369 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_KRK_CMDID,
2370 				  NO_SYNC_WMIFLAG);
2371 
2372 	return ret;
2373 }
2374 
2375 int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index)
2376 {
2377 	struct sk_buff *skb;
2378 	struct wmi_delete_cipher_key_cmd *cmd;
2379 	int ret;
2380 
2381 	if (key_index > WMI_MAX_KEY_INDEX)
2382 		return -EINVAL;
2383 
2384 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2385 	if (!skb)
2386 		return -ENOMEM;
2387 
2388 	cmd = (struct wmi_delete_cipher_key_cmd *) skb->data;
2389 	cmd->key_index = key_index;
2390 
2391 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_CIPHER_KEY_CMDID,
2392 				  NO_SYNC_WMIFLAG);
2393 
2394 	return ret;
2395 }
2396 
2397 int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, u8 if_idx, const u8 *bssid,
2398 			    const u8 *pmkid, bool set)
2399 {
2400 	struct sk_buff *skb;
2401 	struct wmi_setpmkid_cmd *cmd;
2402 	int ret;
2403 
2404 	if (bssid == NULL)
2405 		return -EINVAL;
2406 
2407 	if (set && pmkid == NULL)
2408 		return -EINVAL;
2409 
2410 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2411 	if (!skb)
2412 		return -ENOMEM;
2413 
2414 	cmd = (struct wmi_setpmkid_cmd *) skb->data;
2415 	memcpy(cmd->bssid, bssid, ETH_ALEN);
2416 	if (set) {
2417 		memcpy(cmd->pmkid, pmkid, sizeof(cmd->pmkid));
2418 		cmd->enable = PMKID_ENABLE;
2419 	} else {
2420 		memset(cmd->pmkid, 0, sizeof(cmd->pmkid));
2421 		cmd->enable = PMKID_DISABLE;
2422 	}
2423 
2424 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PMKID_CMDID,
2425 				  NO_SYNC_WMIFLAG);
2426 
2427 	return ret;
2428 }
2429 
2430 static int ath6kl_wmi_data_sync_send(struct wmi *wmi, struct sk_buff *skb,
2431 			      enum htc_endpoint_id ep_id, u8 if_idx)
2432 {
2433 	struct wmi_data_hdr *data_hdr;
2434 	int ret;
2435 
2436 	if (WARN_ON(skb == NULL || ep_id == wmi->ep_id)) {
2437 		dev_kfree_skb(skb);
2438 		return -EINVAL;
2439 	}
2440 
2441 	skb_push(skb, sizeof(struct wmi_data_hdr));
2442 
2443 	data_hdr = (struct wmi_data_hdr *) skb->data;
2444 	data_hdr->info = SYNC_MSGTYPE << WMI_DATA_HDR_MSG_TYPE_SHIFT;
2445 	data_hdr->info3 = cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
2446 
2447 	ret = ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
2448 
2449 	return ret;
2450 }
2451 
2452 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx)
2453 {
2454 	struct sk_buff *skb;
2455 	struct wmi_sync_cmd *cmd;
2456 	struct wmi_data_sync_bufs data_sync_bufs[WMM_NUM_AC];
2457 	enum htc_endpoint_id ep_id;
2458 	u8 index, num_pri_streams = 0;
2459 	int ret = 0;
2460 
2461 	memset(data_sync_bufs, 0, sizeof(data_sync_bufs));
2462 
2463 	spin_lock_bh(&wmi->lock);
2464 
2465 	for (index = 0; index < WMM_NUM_AC; index++) {
2466 		if (wmi->fat_pipe_exist & (1 << index)) {
2467 			num_pri_streams++;
2468 			data_sync_bufs[num_pri_streams - 1].traffic_class =
2469 			    index;
2470 		}
2471 	}
2472 
2473 	spin_unlock_bh(&wmi->lock);
2474 
2475 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2476 	if (!skb)
2477 		return -ENOMEM;
2478 
2479 	cmd = (struct wmi_sync_cmd *) skb->data;
2480 
2481 	/*
2482 	 * In the SYNC cmd sent on the control Ep, send a bitmap
2483 	 * of the data eps on which the Data Sync will be sent
2484 	 */
2485 	cmd->data_sync_map = wmi->fat_pipe_exist;
2486 
2487 	for (index = 0; index < num_pri_streams; index++) {
2488 		data_sync_bufs[index].skb = ath6kl_buf_alloc(0);
2489 		if (data_sync_bufs[index].skb == NULL) {
2490 			ret = -ENOMEM;
2491 			break;
2492 		}
2493 	}
2494 
2495 	/*
2496 	 * If buffer allocation for any of the dataSync fails,
2497 	 * then do not send the Synchronize cmd on the control ep
2498 	 */
2499 	if (ret)
2500 		goto free_cmd_skb;
2501 
2502 	/*
2503 	 * Send sync cmd followed by sync data messages on all
2504 	 * endpoints being used
2505 	 */
2506 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SYNCHRONIZE_CMDID,
2507 				  NO_SYNC_WMIFLAG);
2508 
2509 	if (ret)
2510 		goto free_data_skb;
2511 
2512 	for (index = 0; index < num_pri_streams; index++) {
2513 		if (WARN_ON(!data_sync_bufs[index].skb))
2514 			goto free_data_skb;
2515 
2516 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev,
2517 					       data_sync_bufs[index].
2518 					       traffic_class);
2519 		ret =
2520 		    ath6kl_wmi_data_sync_send(wmi, data_sync_bufs[index].skb,
2521 					      ep_id, if_idx);
2522 
2523 		data_sync_bufs[index].skb = NULL;
2524 
2525 		if (ret)
2526 			goto free_data_skb;
2527 	}
2528 
2529 	return 0;
2530 
2531 free_cmd_skb:
2532 	/* free up any resources left over (possibly due to an error) */
2533 	dev_kfree_skb(skb);
2534 
2535 free_data_skb:
2536 	for (index = 0; index < num_pri_streams; index++)
2537 		dev_kfree_skb((struct sk_buff *)data_sync_bufs[index].skb);
2538 
2539 	return ret;
2540 }
2541 
2542 int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, u8 if_idx,
2543 				  struct wmi_create_pstream_cmd *params)
2544 {
2545 	struct sk_buff *skb;
2546 	struct wmi_create_pstream_cmd *cmd;
2547 	u8 fatpipe_exist_for_ac = 0;
2548 	s32 min_phy = 0;
2549 	s32 nominal_phy = 0;
2550 	int ret;
2551 
2552 	if (!((params->user_pri <= 0x7) &&
2553 	      (up_to_ac[params->user_pri & 0x7] == params->traffic_class) &&
2554 	      (params->traffic_direc == UPLINK_TRAFFIC ||
2555 	       params->traffic_direc == DNLINK_TRAFFIC ||
2556 	       params->traffic_direc == BIDIR_TRAFFIC) &&
2557 	      (params->traffic_type == TRAFFIC_TYPE_APERIODIC ||
2558 	       params->traffic_type == TRAFFIC_TYPE_PERIODIC) &&
2559 	      (params->voice_psc_cap == DISABLE_FOR_THIS_AC ||
2560 	       params->voice_psc_cap == ENABLE_FOR_THIS_AC ||
2561 	       params->voice_psc_cap == ENABLE_FOR_ALL_AC) &&
2562 	      (params->tsid == WMI_IMPLICIT_PSTREAM ||
2563 	       params->tsid <= WMI_MAX_THINSTREAM))) {
2564 		return -EINVAL;
2565 	}
2566 
2567 	/*
2568 	 * Check nominal PHY rate is >= minimalPHY,
2569 	 * so that DUT can allow TSRS IE
2570 	 */
2571 
2572 	/* Get the physical rate (units of bps) */
2573 	min_phy = ((le32_to_cpu(params->min_phy_rate) / 1000) / 1000);
2574 
2575 	/* Check minimal phy < nominal phy rate */
2576 	if (params->nominal_phy >= min_phy) {
2577 		/* unit of 500 kbps */
2578 		nominal_phy = (params->nominal_phy * 1000) / 500;
2579 		ath6kl_dbg(ATH6KL_DBG_WMI,
2580 			   "TSRS IE enabled::MinPhy %x->NominalPhy ===> %x\n",
2581 			   min_phy, nominal_phy);
2582 
2583 		params->nominal_phy = nominal_phy;
2584 	} else {
2585 		params->nominal_phy = 0;
2586 	}
2587 
2588 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2589 	if (!skb)
2590 		return -ENOMEM;
2591 
2592 	ath6kl_dbg(ATH6KL_DBG_WMI,
2593 		   "sending create_pstream_cmd: ac=%d  tsid:%d\n",
2594 		   params->traffic_class, params->tsid);
2595 
2596 	cmd = (struct wmi_create_pstream_cmd *) skb->data;
2597 	memcpy(cmd, params, sizeof(*cmd));
2598 
2599 	/* This is an implicitly created Fat pipe */
2600 	if ((u32) params->tsid == (u32) WMI_IMPLICIT_PSTREAM) {
2601 		spin_lock_bh(&wmi->lock);
2602 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2603 					(1 << params->traffic_class));
2604 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2605 		spin_unlock_bh(&wmi->lock);
2606 	} else {
2607 		/* explicitly created thin stream within a fat pipe */
2608 		spin_lock_bh(&wmi->lock);
2609 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2610 					(1 << params->traffic_class));
2611 		wmi->stream_exist_for_ac[params->traffic_class] |=
2612 		    (1 << params->tsid);
2613 		/*
2614 		 * If a thinstream becomes active, the fat pipe automatically
2615 		 * becomes active
2616 		 */
2617 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2618 		spin_unlock_bh(&wmi->lock);
2619 	}
2620 
2621 	/*
2622 	 * Indicate activty change to driver layer only if this is the
2623 	 * first TSID to get created in this AC explicitly or an implicit
2624 	 * fat pipe is getting created.
2625 	 */
2626 	if (!fatpipe_exist_for_ac)
2627 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2628 					    params->traffic_class, true);
2629 
2630 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CREATE_PSTREAM_CMDID,
2631 				  NO_SYNC_WMIFLAG);
2632 	return ret;
2633 }
2634 
2635 int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 if_idx, u8 traffic_class,
2636 				  u8 tsid)
2637 {
2638 	struct sk_buff *skb;
2639 	struct wmi_delete_pstream_cmd *cmd;
2640 	u16 active_tsids = 0;
2641 	int ret;
2642 
2643 	if (traffic_class >= WMM_NUM_AC) {
2644 		ath6kl_err("invalid traffic class: %d\n", traffic_class);
2645 		return -EINVAL;
2646 	}
2647 
2648 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2649 	if (!skb)
2650 		return -ENOMEM;
2651 
2652 	cmd = (struct wmi_delete_pstream_cmd *) skb->data;
2653 	cmd->traffic_class = traffic_class;
2654 	cmd->tsid = tsid;
2655 
2656 	spin_lock_bh(&wmi->lock);
2657 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2658 	spin_unlock_bh(&wmi->lock);
2659 
2660 	if (!(active_tsids & (1 << tsid))) {
2661 		dev_kfree_skb(skb);
2662 		ath6kl_dbg(ATH6KL_DBG_WMI,
2663 			   "TSID %d doesn't exist for traffic class: %d\n",
2664 			   tsid, traffic_class);
2665 		return -ENODATA;
2666 	}
2667 
2668 	ath6kl_dbg(ATH6KL_DBG_WMI,
2669 		   "sending delete_pstream_cmd: traffic class: %d tsid=%d\n",
2670 		   traffic_class, tsid);
2671 
2672 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_PSTREAM_CMDID,
2673 				  SYNC_BEFORE_WMIFLAG);
2674 
2675 	spin_lock_bh(&wmi->lock);
2676 	wmi->stream_exist_for_ac[traffic_class] &= ~(1 << tsid);
2677 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2678 	spin_unlock_bh(&wmi->lock);
2679 
2680 	/*
2681 	 * Indicate stream inactivity to driver layer only if all tsids
2682 	 * within this AC are deleted.
2683 	 */
2684 	if (!active_tsids) {
2685 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2686 					    traffic_class, false);
2687 		wmi->fat_pipe_exist &= ~(1 << traffic_class);
2688 	}
2689 
2690 	return ret;
2691 }
2692 
2693 int ath6kl_wmi_set_ip_cmd(struct wmi *wmi, u8 if_idx,
2694 			  __be32 ips0, __be32 ips1)
2695 {
2696 	struct sk_buff *skb;
2697 	struct wmi_set_ip_cmd *cmd;
2698 	int ret;
2699 
2700 	/* Multicast address are not valid */
2701 	if (ipv4_is_multicast(ips0) ||
2702 	    ipv4_is_multicast(ips1))
2703 		return -EINVAL;
2704 
2705 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_ip_cmd));
2706 	if (!skb)
2707 		return -ENOMEM;
2708 
2709 	cmd = (struct wmi_set_ip_cmd *) skb->data;
2710 	cmd->ips[0] = ips0;
2711 	cmd->ips[1] = ips1;
2712 
2713 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IP_CMDID,
2714 				  NO_SYNC_WMIFLAG);
2715 	return ret;
2716 }
2717 
2718 static void ath6kl_wmi_relinquish_implicit_pstream_credits(struct wmi *wmi)
2719 {
2720 	u16 active_tsids;
2721 	u8 stream_exist;
2722 	int i;
2723 
2724 	/*
2725 	 * Relinquish credits from all implicitly created pstreams
2726 	 * since when we go to sleep. If user created explicit
2727 	 * thinstreams exists with in a fatpipe leave them intact
2728 	 * for the user to delete.
2729 	 */
2730 	spin_lock_bh(&wmi->lock);
2731 	stream_exist = wmi->fat_pipe_exist;
2732 	spin_unlock_bh(&wmi->lock);
2733 
2734 	for (i = 0; i < WMM_NUM_AC; i++) {
2735 		if (stream_exist & (1 << i)) {
2736 			/*
2737 			 * FIXME: Is this lock & unlock inside
2738 			 * for loop correct? may need rework.
2739 			 */
2740 			spin_lock_bh(&wmi->lock);
2741 			active_tsids = wmi->stream_exist_for_ac[i];
2742 			spin_unlock_bh(&wmi->lock);
2743 
2744 			/*
2745 			 * If there are no user created thin streams
2746 			 * delete the fatpipe
2747 			 */
2748 			if (!active_tsids) {
2749 				stream_exist &= ~(1 << i);
2750 				/*
2751 				 * Indicate inactivity to driver layer for
2752 				 * this fatpipe (pstream)
2753 				 */
2754 				ath6kl_indicate_tx_activity(wmi->parent_dev,
2755 							    i, false);
2756 			}
2757 		}
2758 	}
2759 
2760 	/* FIXME: Can we do this assignment without locking ? */
2761 	spin_lock_bh(&wmi->lock);
2762 	wmi->fat_pipe_exist = stream_exist;
2763 	spin_unlock_bh(&wmi->lock);
2764 }
2765 
2766 static int ath6kl_set_bitrate_mask64(struct wmi *wmi, u8 if_idx,
2767 				     const struct cfg80211_bitrate_mask *mask)
2768 {
2769 	struct sk_buff *skb;
2770 	int ret, mode, band;
2771 	u64 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2772 	struct wmi_set_tx_select_rates64_cmd *cmd;
2773 
2774 	memset(&ratemask, 0, sizeof(ratemask));
2775 
2776 	/* only check 2.4 and 5 GHz bands, skip the rest */
2777 	for (band = 0; band <= NL80211_BAND_5GHZ; band++) {
2778 		/* copy legacy rate mask */
2779 		ratemask[band] = mask->control[band].legacy;
2780 		if (band == NL80211_BAND_5GHZ)
2781 			ratemask[band] =
2782 				mask->control[band].legacy << 4;
2783 
2784 		/* copy mcs rate mask */
2785 		mcsrate = mask->control[band].ht_mcs[1];
2786 		mcsrate <<= 8;
2787 		mcsrate |= mask->control[band].ht_mcs[0];
2788 		ratemask[band] |= mcsrate << 12;
2789 		ratemask[band] |= mcsrate << 28;
2790 	}
2791 
2792 	ath6kl_dbg(ATH6KL_DBG_WMI,
2793 		   "Ratemask 64 bit: 2.4:%llx 5:%llx\n",
2794 		   ratemask[0], ratemask[1]);
2795 
2796 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2797 	if (!skb)
2798 		return -ENOMEM;
2799 
2800 	cmd = (struct wmi_set_tx_select_rates64_cmd *) skb->data;
2801 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2802 		/* A mode operate in 5GHZ band */
2803 		if (mode == WMI_RATES_MODE_11A ||
2804 		    mode == WMI_RATES_MODE_11A_HT20 ||
2805 		    mode == WMI_RATES_MODE_11A_HT40)
2806 			band = NL80211_BAND_5GHZ;
2807 		else
2808 			band = NL80211_BAND_2GHZ;
2809 		cmd->ratemask[mode] = cpu_to_le64(ratemask[band]);
2810 	}
2811 
2812 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2813 				  WMI_SET_TX_SELECT_RATES_CMDID,
2814 				  NO_SYNC_WMIFLAG);
2815 	return ret;
2816 }
2817 
2818 static int ath6kl_set_bitrate_mask32(struct wmi *wmi, u8 if_idx,
2819 				     const struct cfg80211_bitrate_mask *mask)
2820 {
2821 	struct sk_buff *skb;
2822 	int ret, mode, band;
2823 	u32 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2824 	struct wmi_set_tx_select_rates32_cmd *cmd;
2825 
2826 	memset(&ratemask, 0, sizeof(ratemask));
2827 
2828 	/* only check 2.4 and 5 GHz bands, skip the rest */
2829 	for (band = 0; band <= NL80211_BAND_5GHZ; band++) {
2830 		/* copy legacy rate mask */
2831 		ratemask[band] = mask->control[band].legacy;
2832 		if (band == NL80211_BAND_5GHZ)
2833 			ratemask[band] =
2834 				mask->control[band].legacy << 4;
2835 
2836 		/* copy mcs rate mask */
2837 		mcsrate = mask->control[band].ht_mcs[0];
2838 		ratemask[band] |= mcsrate << 12;
2839 		ratemask[band] |= mcsrate << 20;
2840 	}
2841 
2842 	ath6kl_dbg(ATH6KL_DBG_WMI,
2843 		   "Ratemask 32 bit: 2.4:%x 5:%x\n",
2844 		   ratemask[0], ratemask[1]);
2845 
2846 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2847 	if (!skb)
2848 		return -ENOMEM;
2849 
2850 	cmd = (struct wmi_set_tx_select_rates32_cmd *) skb->data;
2851 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2852 		/* A mode operate in 5GHZ band */
2853 		if (mode == WMI_RATES_MODE_11A ||
2854 		    mode == WMI_RATES_MODE_11A_HT20 ||
2855 		    mode == WMI_RATES_MODE_11A_HT40)
2856 			band = NL80211_BAND_5GHZ;
2857 		else
2858 			band = NL80211_BAND_2GHZ;
2859 		cmd->ratemask[mode] = cpu_to_le32(ratemask[band]);
2860 	}
2861 
2862 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2863 				  WMI_SET_TX_SELECT_RATES_CMDID,
2864 				  NO_SYNC_WMIFLAG);
2865 	return ret;
2866 }
2867 
2868 int ath6kl_wmi_set_bitrate_mask(struct wmi *wmi, u8 if_idx,
2869 				const struct cfg80211_bitrate_mask *mask)
2870 {
2871 	struct ath6kl *ar = wmi->parent_dev;
2872 
2873 	if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES,
2874 		     ar->fw_capabilities))
2875 		return ath6kl_set_bitrate_mask64(wmi, if_idx, mask);
2876 	else
2877 		return ath6kl_set_bitrate_mask32(wmi, if_idx, mask);
2878 }
2879 
2880 int ath6kl_wmi_set_host_sleep_mode_cmd(struct wmi *wmi, u8 if_idx,
2881 				       enum ath6kl_host_mode host_mode)
2882 {
2883 	struct sk_buff *skb;
2884 	struct wmi_set_host_sleep_mode_cmd *cmd;
2885 	int ret;
2886 
2887 	if ((host_mode != ATH6KL_HOST_MODE_ASLEEP) &&
2888 	    (host_mode != ATH6KL_HOST_MODE_AWAKE)) {
2889 		ath6kl_err("invalid host sleep mode: %d\n", host_mode);
2890 		return -EINVAL;
2891 	}
2892 
2893 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2894 	if (!skb)
2895 		return -ENOMEM;
2896 
2897 	cmd = (struct wmi_set_host_sleep_mode_cmd *) skb->data;
2898 
2899 	if (host_mode == ATH6KL_HOST_MODE_ASLEEP) {
2900 		ath6kl_wmi_relinquish_implicit_pstream_credits(wmi);
2901 		cmd->asleep = cpu_to_le32(1);
2902 	} else {
2903 		cmd->awake = cpu_to_le32(1);
2904 	}
2905 
2906 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2907 				  WMI_SET_HOST_SLEEP_MODE_CMDID,
2908 				  NO_SYNC_WMIFLAG);
2909 	return ret;
2910 }
2911 
2912 /* This command has zero length payload */
2913 static int ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(struct wmi *wmi,
2914 						      struct ath6kl_vif *vif)
2915 {
2916 	struct ath6kl *ar = wmi->parent_dev;
2917 
2918 	set_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2919 	wake_up(&ar->event_wq);
2920 
2921 	return 0;
2922 }
2923 
2924 int ath6kl_wmi_set_wow_mode_cmd(struct wmi *wmi, u8 if_idx,
2925 				enum ath6kl_wow_mode wow_mode,
2926 				u32 filter, u16 host_req_delay)
2927 {
2928 	struct sk_buff *skb;
2929 	struct wmi_set_wow_mode_cmd *cmd;
2930 	int ret;
2931 
2932 	if ((wow_mode != ATH6KL_WOW_MODE_ENABLE) &&
2933 	    wow_mode != ATH6KL_WOW_MODE_DISABLE) {
2934 		ath6kl_err("invalid wow mode: %d\n", wow_mode);
2935 		return -EINVAL;
2936 	}
2937 
2938 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2939 	if (!skb)
2940 		return -ENOMEM;
2941 
2942 	cmd = (struct wmi_set_wow_mode_cmd *) skb->data;
2943 	cmd->enable_wow = cpu_to_le32(wow_mode);
2944 	cmd->filter = cpu_to_le32(filter);
2945 	cmd->host_req_delay = cpu_to_le16(host_req_delay);
2946 
2947 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WOW_MODE_CMDID,
2948 				  NO_SYNC_WMIFLAG);
2949 	return ret;
2950 }
2951 
2952 int ath6kl_wmi_add_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2953 				   u8 list_id, u8 filter_size,
2954 				   u8 filter_offset, const u8 *filter,
2955 				   const u8 *mask)
2956 {
2957 	struct sk_buff *skb;
2958 	struct wmi_add_wow_pattern_cmd *cmd;
2959 	u16 size;
2960 	u8 *filter_mask;
2961 	int ret;
2962 
2963 	/*
2964 	 * Allocate additional memory in the buffer to hold
2965 	 * filter and mask value, which is twice of filter_size.
2966 	 */
2967 	size = sizeof(*cmd) + (2 * filter_size);
2968 
2969 	skb = ath6kl_wmi_get_new_buf(size);
2970 	if (!skb)
2971 		return -ENOMEM;
2972 
2973 	cmd = (struct wmi_add_wow_pattern_cmd *) skb->data;
2974 	cmd->filter_list_id = list_id;
2975 	cmd->filter_size = filter_size;
2976 	cmd->filter_offset = filter_offset;
2977 
2978 	memcpy(cmd->filter, filter, filter_size);
2979 
2980 	filter_mask = (u8 *) (cmd->filter + filter_size);
2981 	memcpy(filter_mask, mask, filter_size);
2982 
2983 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_WOW_PATTERN_CMDID,
2984 				  NO_SYNC_WMIFLAG);
2985 
2986 	return ret;
2987 }
2988 
2989 int ath6kl_wmi_del_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2990 				   u16 list_id, u16 filter_id)
2991 {
2992 	struct sk_buff *skb;
2993 	struct wmi_del_wow_pattern_cmd *cmd;
2994 	int ret;
2995 
2996 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2997 	if (!skb)
2998 		return -ENOMEM;
2999 
3000 	cmd = (struct wmi_del_wow_pattern_cmd *) skb->data;
3001 	cmd->filter_list_id = cpu_to_le16(list_id);
3002 	cmd->filter_id = cpu_to_le16(filter_id);
3003 
3004 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DEL_WOW_PATTERN_CMDID,
3005 				  NO_SYNC_WMIFLAG);
3006 	return ret;
3007 }
3008 
3009 static int ath6kl_wmi_cmd_send_xtnd(struct wmi *wmi, struct sk_buff *skb,
3010 				    enum wmix_command_id cmd_id,
3011 				    enum wmi_sync_flag sync_flag)
3012 {
3013 	struct wmix_cmd_hdr *cmd_hdr;
3014 	int ret;
3015 
3016 	skb_push(skb, sizeof(struct wmix_cmd_hdr));
3017 
3018 	cmd_hdr = (struct wmix_cmd_hdr *) skb->data;
3019 	cmd_hdr->cmd_id = cpu_to_le32(cmd_id);
3020 
3021 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_EXTENSION_CMDID, sync_flag);
3022 
3023 	return ret;
3024 }
3025 
3026 int ath6kl_wmi_get_challenge_resp_cmd(struct wmi *wmi, u32 cookie, u32 source)
3027 {
3028 	struct sk_buff *skb;
3029 	struct wmix_hb_challenge_resp_cmd *cmd;
3030 	int ret;
3031 
3032 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3033 	if (!skb)
3034 		return -ENOMEM;
3035 
3036 	cmd = (struct wmix_hb_challenge_resp_cmd *) skb->data;
3037 	cmd->cookie = cpu_to_le32(cookie);
3038 	cmd->source = cpu_to_le32(source);
3039 
3040 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_HB_CHALLENGE_RESP_CMDID,
3041 				       NO_SYNC_WMIFLAG);
3042 	return ret;
3043 }
3044 
3045 int ath6kl_wmi_config_debug_module_cmd(struct wmi *wmi, u32 valid, u32 config)
3046 {
3047 	struct ath6kl_wmix_dbglog_cfg_module_cmd *cmd;
3048 	struct sk_buff *skb;
3049 	int ret;
3050 
3051 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3052 	if (!skb)
3053 		return -ENOMEM;
3054 
3055 	cmd = (struct ath6kl_wmix_dbglog_cfg_module_cmd *) skb->data;
3056 	cmd->valid = cpu_to_le32(valid);
3057 	cmd->config = cpu_to_le32(config);
3058 
3059 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_DBGLOG_CFG_MODULE_CMDID,
3060 				       NO_SYNC_WMIFLAG);
3061 	return ret;
3062 }
3063 
3064 int ath6kl_wmi_get_stats_cmd(struct wmi *wmi, u8 if_idx)
3065 {
3066 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_STATISTICS_CMDID);
3067 }
3068 
3069 int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 if_idx, u8 dbM)
3070 {
3071 	struct sk_buff *skb;
3072 	struct wmi_set_tx_pwr_cmd *cmd;
3073 	int ret;
3074 
3075 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_tx_pwr_cmd));
3076 	if (!skb)
3077 		return -ENOMEM;
3078 
3079 	cmd = (struct wmi_set_tx_pwr_cmd *) skb->data;
3080 	cmd->dbM = dbM;
3081 
3082 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_TX_PWR_CMDID,
3083 				  NO_SYNC_WMIFLAG);
3084 
3085 	return ret;
3086 }
3087 
3088 int ath6kl_wmi_get_tx_pwr_cmd(struct wmi *wmi, u8 if_idx)
3089 {
3090 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_TX_PWR_CMDID);
3091 }
3092 
3093 int ath6kl_wmi_get_roam_tbl_cmd(struct wmi *wmi)
3094 {
3095 	return ath6kl_wmi_simple_cmd(wmi, 0, WMI_GET_ROAM_TBL_CMDID);
3096 }
3097 
3098 int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 if_idx, u8 status,
3099 				 u8 preamble_policy)
3100 {
3101 	struct sk_buff *skb;
3102 	struct wmi_set_lpreamble_cmd *cmd;
3103 	int ret;
3104 
3105 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_lpreamble_cmd));
3106 	if (!skb)
3107 		return -ENOMEM;
3108 
3109 	cmd = (struct wmi_set_lpreamble_cmd *) skb->data;
3110 	cmd->status = status;
3111 	cmd->preamble_policy = preamble_policy;
3112 
3113 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LPREAMBLE_CMDID,
3114 				  NO_SYNC_WMIFLAG);
3115 	return ret;
3116 }
3117 
3118 int ath6kl_wmi_set_rts_cmd(struct wmi *wmi, u16 threshold)
3119 {
3120 	struct sk_buff *skb;
3121 	struct wmi_set_rts_cmd *cmd;
3122 	int ret;
3123 
3124 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_rts_cmd));
3125 	if (!skb)
3126 		return -ENOMEM;
3127 
3128 	cmd = (struct wmi_set_rts_cmd *) skb->data;
3129 	cmd->threshold = cpu_to_le16(threshold);
3130 
3131 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_RTS_CMDID,
3132 				  NO_SYNC_WMIFLAG);
3133 	return ret;
3134 }
3135 
3136 int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, u8 if_idx, enum wmi_txop_cfg cfg)
3137 {
3138 	struct sk_buff *skb;
3139 	struct wmi_set_wmm_txop_cmd *cmd;
3140 	int ret;
3141 
3142 	if (!((cfg == WMI_TXOP_DISABLED) || (cfg == WMI_TXOP_ENABLED)))
3143 		return -EINVAL;
3144 
3145 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_wmm_txop_cmd));
3146 	if (!skb)
3147 		return -ENOMEM;
3148 
3149 	cmd = (struct wmi_set_wmm_txop_cmd *) skb->data;
3150 	cmd->txop_enable = cfg;
3151 
3152 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WMM_TXOP_CMDID,
3153 				  NO_SYNC_WMIFLAG);
3154 	return ret;
3155 }
3156 
3157 int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 if_idx,
3158 				 u8 keep_alive_intvl)
3159 {
3160 	struct sk_buff *skb;
3161 	struct wmi_set_keepalive_cmd *cmd;
3162 	int ret;
3163 
3164 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3165 	if (!skb)
3166 		return -ENOMEM;
3167 
3168 	cmd = (struct wmi_set_keepalive_cmd *) skb->data;
3169 	cmd->keep_alive_intvl = keep_alive_intvl;
3170 
3171 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_KEEPALIVE_CMDID,
3172 				  NO_SYNC_WMIFLAG);
3173 
3174 	if (ret == 0)
3175 		ath6kl_debug_set_keepalive(wmi->parent_dev, keep_alive_intvl);
3176 
3177 	return ret;
3178 }
3179 
3180 int ath6kl_wmi_set_htcap_cmd(struct wmi *wmi, u8 if_idx,
3181 			     enum nl80211_band band,
3182 			     struct ath6kl_htcap *htcap)
3183 {
3184 	struct sk_buff *skb;
3185 	struct wmi_set_htcap_cmd *cmd;
3186 
3187 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3188 	if (!skb)
3189 		return -ENOMEM;
3190 
3191 	cmd = (struct wmi_set_htcap_cmd *) skb->data;
3192 
3193 	/*
3194 	 * NOTE: Band in firmware matches enum nl80211_band, it is unlikely
3195 	 * this will be changed in firmware. If at all there is any change in
3196 	 * band value, the host needs to be fixed.
3197 	 */
3198 	cmd->band = band;
3199 	cmd->ht_enable = !!htcap->ht_enable;
3200 	cmd->ht20_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_20);
3201 	cmd->ht40_supported =
3202 		!!(htcap->cap_info & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
3203 	cmd->ht40_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_40);
3204 	cmd->intolerant_40mhz =
3205 		!!(htcap->cap_info & IEEE80211_HT_CAP_40MHZ_INTOLERANT);
3206 	cmd->max_ampdu_len_exp = htcap->ampdu_factor;
3207 
3208 	ath6kl_dbg(ATH6KL_DBG_WMI,
3209 		   "Set htcap: band:%d ht_enable:%d 40mhz:%d sgi_20mhz:%d sgi_40mhz:%d 40mhz_intolerant:%d ampdu_len_exp:%d\n",
3210 		   cmd->band, cmd->ht_enable, cmd->ht40_supported,
3211 		   cmd->ht20_sgi, cmd->ht40_sgi, cmd->intolerant_40mhz,
3212 		   cmd->max_ampdu_len_exp);
3213 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_HT_CAP_CMDID,
3214 				   NO_SYNC_WMIFLAG);
3215 }
3216 
3217 int ath6kl_wmi_test_cmd(struct wmi *wmi, void *buf, size_t len)
3218 {
3219 	struct sk_buff *skb;
3220 	int ret;
3221 
3222 	skb = ath6kl_wmi_get_new_buf(len);
3223 	if (!skb)
3224 		return -ENOMEM;
3225 
3226 	memcpy(skb->data, buf, len);
3227 
3228 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_TEST_CMDID, NO_SYNC_WMIFLAG);
3229 
3230 	return ret;
3231 }
3232 
3233 int ath6kl_wmi_mcast_filter_cmd(struct wmi *wmi, u8 if_idx, bool mc_all_on)
3234 {
3235 	struct sk_buff *skb;
3236 	struct wmi_mcast_filter_cmd *cmd;
3237 	int ret;
3238 
3239 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3240 	if (!skb)
3241 		return -ENOMEM;
3242 
3243 	cmd = (struct wmi_mcast_filter_cmd *) skb->data;
3244 	cmd->mcast_all_enable = mc_all_on;
3245 
3246 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_MCAST_FILTER_CMDID,
3247 				  NO_SYNC_WMIFLAG);
3248 	return ret;
3249 }
3250 
3251 int ath6kl_wmi_add_del_mcast_filter_cmd(struct wmi *wmi, u8 if_idx,
3252 					u8 *filter, bool add_filter)
3253 {
3254 	struct sk_buff *skb;
3255 	struct wmi_mcast_filter_add_del_cmd *cmd;
3256 	int ret;
3257 
3258 	if ((filter[0] != 0x33 || filter[1] != 0x33) &&
3259 	    (filter[0] != 0x01 || filter[1] != 0x00 ||
3260 	    filter[2] != 0x5e || filter[3] > 0x7f)) {
3261 		ath6kl_warn("invalid multicast filter address\n");
3262 		return -EINVAL;
3263 	}
3264 
3265 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3266 	if (!skb)
3267 		return -ENOMEM;
3268 
3269 	cmd = (struct wmi_mcast_filter_add_del_cmd *) skb->data;
3270 	memcpy(cmd->mcast_mac, filter, ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
3271 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3272 				  add_filter ? WMI_SET_MCAST_FILTER_CMDID :
3273 				  WMI_DEL_MCAST_FILTER_CMDID,
3274 				  NO_SYNC_WMIFLAG);
3275 
3276 	return ret;
3277 }
3278 
3279 int ath6kl_wmi_sta_bmiss_enhance_cmd(struct wmi *wmi, u8 if_idx, bool enhance)
3280 {
3281 	struct sk_buff *skb;
3282 	struct wmi_sta_bmiss_enhance_cmd *cmd;
3283 	int ret;
3284 
3285 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3286 	if (!skb)
3287 		return -ENOMEM;
3288 
3289 	cmd = (struct wmi_sta_bmiss_enhance_cmd *) skb->data;
3290 	cmd->enable = enhance ? 1 : 0;
3291 
3292 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3293 				  WMI_STA_BMISS_ENHANCE_CMDID,
3294 				  NO_SYNC_WMIFLAG);
3295 	return ret;
3296 }
3297 
3298 int ath6kl_wmi_set_regdomain_cmd(struct wmi *wmi, const char *alpha2)
3299 {
3300 	struct sk_buff *skb;
3301 	struct wmi_set_regdomain_cmd *cmd;
3302 
3303 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3304 	if (!skb)
3305 		return -ENOMEM;
3306 
3307 	cmd = (struct wmi_set_regdomain_cmd *) skb->data;
3308 	memcpy(cmd->iso_name, alpha2, 2);
3309 
3310 	return ath6kl_wmi_cmd_send(wmi, 0, skb,
3311 				   WMI_SET_REGDOMAIN_CMDID,
3312 				   NO_SYNC_WMIFLAG);
3313 }
3314 
3315 s32 ath6kl_wmi_get_rate(struct wmi *wmi, s8 rate_index)
3316 {
3317 	struct ath6kl *ar = wmi->parent_dev;
3318 	u8 sgi = 0;
3319 	s32 ret;
3320 
3321 	if (rate_index == RATE_AUTO)
3322 		return 0;
3323 
3324 	/* SGI is stored as the MSB of the rate_index */
3325 	if (rate_index & RATE_INDEX_MSB) {
3326 		rate_index &= RATE_INDEX_WITHOUT_SGI_MASK;
3327 		sgi = 1;
3328 	}
3329 
3330 	if (test_bit(ATH6KL_FW_CAPABILITY_RATETABLE_MCS15,
3331 		     ar->fw_capabilities)) {
3332 		if (WARN_ON(rate_index >= ARRAY_SIZE(wmi_rate_tbl_mcs15)))
3333 			return 0;
3334 
3335 		ret = wmi_rate_tbl_mcs15[(u32) rate_index][sgi];
3336 	} else {
3337 		if (WARN_ON(rate_index >= ARRAY_SIZE(wmi_rate_tbl)))
3338 			return 0;
3339 
3340 		ret = wmi_rate_tbl[(u32) rate_index][sgi];
3341 	}
3342 
3343 	return ret;
3344 }
3345 
3346 static int ath6kl_wmi_get_pmkid_list_event_rx(struct wmi *wmi, u8 *datap,
3347 					      u32 len)
3348 {
3349 	struct wmi_pmkid_list_reply *reply;
3350 	u32 expected_len;
3351 
3352 	if (len < sizeof(struct wmi_pmkid_list_reply))
3353 		return -EINVAL;
3354 
3355 	reply = (struct wmi_pmkid_list_reply *)datap;
3356 	expected_len = sizeof(reply->num_pmkid) +
3357 		le32_to_cpu(reply->num_pmkid) * WMI_PMKID_LEN;
3358 
3359 	if (len < expected_len)
3360 		return -EINVAL;
3361 
3362 	return 0;
3363 }
3364 
3365 static int ath6kl_wmi_addba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3366 					 struct ath6kl_vif *vif)
3367 {
3368 	struct wmi_addba_req_event *cmd = (struct wmi_addba_req_event *) datap;
3369 
3370 	aggr_recv_addba_req_evt(vif, cmd->tid,
3371 				le16_to_cpu(cmd->st_seq_no), cmd->win_sz);
3372 
3373 	return 0;
3374 }
3375 
3376 static int ath6kl_wmi_delba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3377 					 struct ath6kl_vif *vif)
3378 {
3379 	struct wmi_delba_event *cmd = (struct wmi_delba_event *) datap;
3380 
3381 	aggr_recv_delba_req_evt(vif, cmd->tid);
3382 
3383 	return 0;
3384 }
3385 
3386 /*  AP mode functions */
3387 
3388 int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, u8 if_idx,
3389 				 struct wmi_connect_cmd *p)
3390 {
3391 	struct sk_buff *skb;
3392 	struct wmi_connect_cmd *cm;
3393 	int res;
3394 
3395 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3396 	if (!skb)
3397 		return -ENOMEM;
3398 
3399 	cm = (struct wmi_connect_cmd *) skb->data;
3400 	memcpy(cm, p, sizeof(*cm));
3401 
3402 	res = ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_CONFIG_COMMIT_CMDID,
3403 				  NO_SYNC_WMIFLAG);
3404 	ath6kl_dbg(ATH6KL_DBG_WMI,
3405 		   "%s: nw_type=%u auth_mode=%u ch=%u ctrl_flags=0x%x-> res=%d\n",
3406 		   __func__, p->nw_type, p->auth_mode, le16_to_cpu(p->ch),
3407 		   le32_to_cpu(p->ctrl_flags), res);
3408 	return res;
3409 }
3410 
3411 int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 if_idx, u8 cmd, const u8 *mac,
3412 			   u16 reason)
3413 {
3414 	struct sk_buff *skb;
3415 	struct wmi_ap_set_mlme_cmd *cm;
3416 
3417 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3418 	if (!skb)
3419 		return -ENOMEM;
3420 
3421 	cm = (struct wmi_ap_set_mlme_cmd *) skb->data;
3422 	memcpy(cm->mac, mac, ETH_ALEN);
3423 	cm->reason = cpu_to_le16(reason);
3424 	cm->cmd = cmd;
3425 
3426 	ath6kl_dbg(ATH6KL_DBG_WMI, "ap_set_mlme: cmd=%d reason=%d\n", cm->cmd,
3427 		   cm->reason);
3428 
3429 	return ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_SET_MLME_CMDID,
3430 				   NO_SYNC_WMIFLAG);
3431 }
3432 
3433 int ath6kl_wmi_ap_hidden_ssid(struct wmi *wmi, u8 if_idx, bool enable)
3434 {
3435 	struct sk_buff *skb;
3436 	struct wmi_ap_hidden_ssid_cmd *cmd;
3437 
3438 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3439 	if (!skb)
3440 		return -ENOMEM;
3441 
3442 	cmd = (struct wmi_ap_hidden_ssid_cmd *) skb->data;
3443 	cmd->hidden_ssid = enable ? 1 : 0;
3444 
3445 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_HIDDEN_SSID_CMDID,
3446 				   NO_SYNC_WMIFLAG);
3447 }
3448 
3449 /* This command will be used to enable/disable AP uAPSD feature */
3450 int ath6kl_wmi_ap_set_apsd(struct wmi *wmi, u8 if_idx, u8 enable)
3451 {
3452 	struct wmi_ap_set_apsd_cmd *cmd;
3453 	struct sk_buff *skb;
3454 
3455 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3456 	if (!skb)
3457 		return -ENOMEM;
3458 
3459 	cmd = (struct wmi_ap_set_apsd_cmd *)skb->data;
3460 	cmd->enable = enable;
3461 
3462 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_APSD_CMDID,
3463 				   NO_SYNC_WMIFLAG);
3464 }
3465 
3466 int ath6kl_wmi_set_apsd_bfrd_traf(struct wmi *wmi, u8 if_idx,
3467 					     u16 aid, u16 bitmap, u32 flags)
3468 {
3469 	struct wmi_ap_apsd_buffered_traffic_cmd *cmd;
3470 	struct sk_buff *skb;
3471 
3472 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3473 	if (!skb)
3474 		return -ENOMEM;
3475 
3476 	cmd = (struct wmi_ap_apsd_buffered_traffic_cmd *)skb->data;
3477 	cmd->aid = cpu_to_le16(aid);
3478 	cmd->bitmap = cpu_to_le16(bitmap);
3479 	cmd->flags = cpu_to_le32(flags);
3480 
3481 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3482 				   WMI_AP_APSD_BUFFERED_TRAFFIC_CMDID,
3483 				   NO_SYNC_WMIFLAG);
3484 }
3485 
3486 static int ath6kl_wmi_pspoll_event_rx(struct wmi *wmi, u8 *datap, int len,
3487 				      struct ath6kl_vif *vif)
3488 {
3489 	struct wmi_pspoll_event *ev;
3490 
3491 	if (len < sizeof(struct wmi_pspoll_event))
3492 		return -EINVAL;
3493 
3494 	ev = (struct wmi_pspoll_event *) datap;
3495 
3496 	ath6kl_pspoll_event(vif, le16_to_cpu(ev->aid));
3497 
3498 	return 0;
3499 }
3500 
3501 static int ath6kl_wmi_dtimexpiry_event_rx(struct wmi *wmi, u8 *datap, int len,
3502 					  struct ath6kl_vif *vif)
3503 {
3504 	ath6kl_dtimexpiry_event(vif);
3505 
3506 	return 0;
3507 }
3508 
3509 int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u8 if_idx, u16 aid,
3510 			   bool flag)
3511 {
3512 	struct sk_buff *skb;
3513 	struct wmi_ap_set_pvb_cmd *cmd;
3514 	int ret;
3515 
3516 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_ap_set_pvb_cmd));
3517 	if (!skb)
3518 		return -ENOMEM;
3519 
3520 	cmd = (struct wmi_ap_set_pvb_cmd *) skb->data;
3521 	cmd->aid = cpu_to_le16(aid);
3522 	cmd->rsvd = cpu_to_le16(0);
3523 	cmd->flag = cpu_to_le32(flag);
3524 
3525 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_PVB_CMDID,
3526 				  NO_SYNC_WMIFLAG);
3527 
3528 	return ret;
3529 }
3530 
3531 int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 if_idx,
3532 				       u8 rx_meta_ver,
3533 				       bool rx_dot11_hdr, bool defrag_on_host)
3534 {
3535 	struct sk_buff *skb;
3536 	struct wmi_rx_frame_format_cmd *cmd;
3537 	int ret;
3538 
3539 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3540 	if (!skb)
3541 		return -ENOMEM;
3542 
3543 	cmd = (struct wmi_rx_frame_format_cmd *) skb->data;
3544 	cmd->dot11_hdr = rx_dot11_hdr ? 1 : 0;
3545 	cmd->defrag_on_host = defrag_on_host ? 1 : 0;
3546 	cmd->meta_ver = rx_meta_ver;
3547 
3548 	/* Delete the local aggr state, on host */
3549 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RX_FRAME_FORMAT_CMDID,
3550 				  NO_SYNC_WMIFLAG);
3551 
3552 	return ret;
3553 }
3554 
3555 int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type,
3556 			     const u8 *ie, u8 ie_len)
3557 {
3558 	struct sk_buff *skb;
3559 	struct wmi_set_appie_cmd *p;
3560 
3561 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3562 	if (!skb)
3563 		return -ENOMEM;
3564 
3565 	ath6kl_dbg(ATH6KL_DBG_WMI,
3566 		   "set_appie_cmd: mgmt_frm_type=%u ie_len=%u\n",
3567 		   mgmt_frm_type, ie_len);
3568 	p = (struct wmi_set_appie_cmd *) skb->data;
3569 	p->mgmt_frm_type = mgmt_frm_type;
3570 	p->ie_len = ie_len;
3571 
3572 	if (ie != NULL && ie_len > 0)
3573 		memcpy(p->ie_info, ie, ie_len);
3574 
3575 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_APPIE_CMDID,
3576 				   NO_SYNC_WMIFLAG);
3577 }
3578 
3579 int ath6kl_wmi_set_ie_cmd(struct wmi *wmi, u8 if_idx, u8 ie_id, u8 ie_field,
3580 			  const u8 *ie_info, u8 ie_len)
3581 {
3582 	struct sk_buff *skb;
3583 	struct wmi_set_ie_cmd *p;
3584 
3585 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3586 	if (!skb)
3587 		return -ENOMEM;
3588 
3589 	ath6kl_dbg(ATH6KL_DBG_WMI, "set_ie_cmd: ie_id=%u ie_ie_field=%u ie_len=%u\n",
3590 		   ie_id, ie_field, ie_len);
3591 	p = (struct wmi_set_ie_cmd *) skb->data;
3592 	p->ie_id = ie_id;
3593 	p->ie_field = ie_field;
3594 	p->ie_len = ie_len;
3595 	if (ie_info && ie_len > 0)
3596 		memcpy(p->ie_info, ie_info, ie_len);
3597 
3598 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IE_CMDID,
3599 				   NO_SYNC_WMIFLAG);
3600 }
3601 
3602 int ath6kl_wmi_disable_11b_rates_cmd(struct wmi *wmi, bool disable)
3603 {
3604 	struct sk_buff *skb;
3605 	struct wmi_disable_11b_rates_cmd *cmd;
3606 
3607 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3608 	if (!skb)
3609 		return -ENOMEM;
3610 
3611 	ath6kl_dbg(ATH6KL_DBG_WMI, "disable_11b_rates_cmd: disable=%u\n",
3612 		   disable);
3613 	cmd = (struct wmi_disable_11b_rates_cmd *) skb->data;
3614 	cmd->disable = disable ? 1 : 0;
3615 
3616 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_DISABLE_11B_RATES_CMDID,
3617 				   NO_SYNC_WMIFLAG);
3618 }
3619 
3620 int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx, u32 freq, u32 dur)
3621 {
3622 	struct sk_buff *skb;
3623 	struct wmi_remain_on_chnl_cmd *p;
3624 
3625 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3626 	if (!skb)
3627 		return -ENOMEM;
3628 
3629 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl_cmd: freq=%u dur=%u\n",
3630 		   freq, dur);
3631 	p = (struct wmi_remain_on_chnl_cmd *) skb->data;
3632 	p->freq = cpu_to_le32(freq);
3633 	p->duration = cpu_to_le32(dur);
3634 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_REMAIN_ON_CHNL_CMDID,
3635 				   NO_SYNC_WMIFLAG);
3636 }
3637 
3638 /* ath6kl_wmi_send_action_cmd is to be deprecated. Use
3639  * ath6kl_wmi_send_mgmt_cmd instead. The new function supports P2P
3640  * mgmt operations using station interface.
3641  */
3642 static int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3643 				      u32 freq, u32 wait, const u8 *data,
3644 				      u16 data_len)
3645 {
3646 	struct sk_buff *skb;
3647 	struct wmi_send_action_cmd *p;
3648 	u8 *buf;
3649 
3650 	if (wait)
3651 		return -EINVAL; /* Offload for wait not supported */
3652 
3653 	buf = kmemdup(data, data_len, GFP_KERNEL);
3654 	if (!buf)
3655 		return -ENOMEM;
3656 
3657 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3658 	if (!skb) {
3659 		kfree(buf);
3660 		return -ENOMEM;
3661 	}
3662 
3663 	kfree(wmi->last_mgmt_tx_frame);
3664 	wmi->last_mgmt_tx_frame = buf;
3665 	wmi->last_mgmt_tx_frame_len = data_len;
3666 
3667 	ath6kl_dbg(ATH6KL_DBG_WMI,
3668 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3669 		   id, freq, wait, data_len);
3670 	p = (struct wmi_send_action_cmd *) skb->data;
3671 	p->id = cpu_to_le32(id);
3672 	p->freq = cpu_to_le32(freq);
3673 	p->wait = cpu_to_le32(wait);
3674 	p->len = cpu_to_le16(data_len);
3675 	memcpy(p->data, data, data_len);
3676 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_ACTION_CMDID,
3677 				   NO_SYNC_WMIFLAG);
3678 }
3679 
3680 static int __ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3681 				      u32 freq, u32 wait, const u8 *data,
3682 				      u16 data_len, u32 no_cck)
3683 {
3684 	struct sk_buff *skb;
3685 	struct wmi_send_mgmt_cmd *p;
3686 	u8 *buf;
3687 
3688 	if (wait)
3689 		return -EINVAL; /* Offload for wait not supported */
3690 
3691 	buf = kmemdup(data, data_len, GFP_KERNEL);
3692 	if (!buf)
3693 		return -ENOMEM;
3694 
3695 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3696 	if (!skb) {
3697 		kfree(buf);
3698 		return -ENOMEM;
3699 	}
3700 
3701 	kfree(wmi->last_mgmt_tx_frame);
3702 	wmi->last_mgmt_tx_frame = buf;
3703 	wmi->last_mgmt_tx_frame_len = data_len;
3704 
3705 	ath6kl_dbg(ATH6KL_DBG_WMI,
3706 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3707 		   id, freq, wait, data_len);
3708 	p = (struct wmi_send_mgmt_cmd *) skb->data;
3709 	p->id = cpu_to_le32(id);
3710 	p->freq = cpu_to_le32(freq);
3711 	p->wait = cpu_to_le32(wait);
3712 	p->no_cck = cpu_to_le32(no_cck);
3713 	p->len = cpu_to_le16(data_len);
3714 	memcpy(p->data, data, data_len);
3715 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_MGMT_CMDID,
3716 				   NO_SYNC_WMIFLAG);
3717 }
3718 
3719 int ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id, u32 freq,
3720 				u32 wait, const u8 *data, u16 data_len,
3721 				u32 no_cck)
3722 {
3723 	int status;
3724 	struct ath6kl *ar = wmi->parent_dev;
3725 
3726 	if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
3727 		     ar->fw_capabilities)) {
3728 		/*
3729 		 * If capable of doing P2P mgmt operations using
3730 		 * station interface, send additional information like
3731 		 * supported rates to advertise and xmit rates for
3732 		 * probe requests
3733 		 */
3734 		status = __ath6kl_wmi_send_mgmt_cmd(ar->wmi, if_idx, id, freq,
3735 						    wait, data, data_len,
3736 						    no_cck);
3737 	} else {
3738 		status = ath6kl_wmi_send_action_cmd(ar->wmi, if_idx, id, freq,
3739 						    wait, data, data_len);
3740 	}
3741 
3742 	return status;
3743 }
3744 
3745 int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u8 if_idx, u32 freq,
3746 				       const u8 *dst, const u8 *data,
3747 				       u16 data_len)
3748 {
3749 	struct sk_buff *skb;
3750 	struct wmi_p2p_probe_response_cmd *p;
3751 	size_t cmd_len = sizeof(*p) + data_len;
3752 
3753 	if (data_len == 0)
3754 		cmd_len++; /* work around target minimum length requirement */
3755 
3756 	skb = ath6kl_wmi_get_new_buf(cmd_len);
3757 	if (!skb)
3758 		return -ENOMEM;
3759 
3760 	ath6kl_dbg(ATH6KL_DBG_WMI,
3761 		   "send_probe_response_cmd: freq=%u dst=%pM len=%u\n",
3762 		   freq, dst, data_len);
3763 	p = (struct wmi_p2p_probe_response_cmd *) skb->data;
3764 	p->freq = cpu_to_le32(freq);
3765 	memcpy(p->destination_addr, dst, ETH_ALEN);
3766 	p->len = cpu_to_le16(data_len);
3767 	memcpy(p->data, data, data_len);
3768 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3769 				   WMI_SEND_PROBE_RESPONSE_CMDID,
3770 				   NO_SYNC_WMIFLAG);
3771 }
3772 
3773 int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, u8 if_idx, bool enable)
3774 {
3775 	struct sk_buff *skb;
3776 	struct wmi_probe_req_report_cmd *p;
3777 
3778 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3779 	if (!skb)
3780 		return -ENOMEM;
3781 
3782 	ath6kl_dbg(ATH6KL_DBG_WMI, "probe_report_req_cmd: enable=%u\n",
3783 		   enable);
3784 	p = (struct wmi_probe_req_report_cmd *) skb->data;
3785 	p->enable = enable ? 1 : 0;
3786 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_PROBE_REQ_REPORT_CMDID,
3787 				   NO_SYNC_WMIFLAG);
3788 }
3789 
3790 int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u8 if_idx, u32 info_req_flags)
3791 {
3792 	struct sk_buff *skb;
3793 	struct wmi_get_p2p_info *p;
3794 
3795 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3796 	if (!skb)
3797 		return -ENOMEM;
3798 
3799 	ath6kl_dbg(ATH6KL_DBG_WMI, "info_req_cmd: flags=%x\n",
3800 		   info_req_flags);
3801 	p = (struct wmi_get_p2p_info *) skb->data;
3802 	p->info_req_flags = cpu_to_le32(info_req_flags);
3803 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_GET_P2P_INFO_CMDID,
3804 				   NO_SYNC_WMIFLAG);
3805 }
3806 
3807 int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx)
3808 {
3809 	ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl_cmd\n");
3810 	return ath6kl_wmi_simple_cmd(wmi, if_idx,
3811 				     WMI_CANCEL_REMAIN_ON_CHNL_CMDID);
3812 }
3813 
3814 int ath6kl_wmi_set_inact_period(struct wmi *wmi, u8 if_idx, int inact_timeout)
3815 {
3816 	struct sk_buff *skb;
3817 	struct wmi_set_inact_period_cmd *cmd;
3818 
3819 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3820 	if (!skb)
3821 		return -ENOMEM;
3822 
3823 	cmd = (struct wmi_set_inact_period_cmd *) skb->data;
3824 	cmd->inact_period = cpu_to_le32(inact_timeout);
3825 	cmd->num_null_func = 0;
3826 
3827 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_CONN_INACT_CMDID,
3828 				   NO_SYNC_WMIFLAG);
3829 }
3830 
3831 static void ath6kl_wmi_hb_challenge_resp_event(struct wmi *wmi, u8 *datap,
3832 					       int len)
3833 {
3834 	struct wmix_hb_challenge_resp_cmd *cmd;
3835 
3836 	if (len < sizeof(struct wmix_hb_challenge_resp_cmd))
3837 		return;
3838 
3839 	cmd = (struct wmix_hb_challenge_resp_cmd *) datap;
3840 	ath6kl_recovery_hb_event(wmi->parent_dev,
3841 				 le32_to_cpu(cmd->cookie));
3842 }
3843 
3844 static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb)
3845 {
3846 	struct wmix_cmd_hdr *cmd;
3847 	u32 len;
3848 	u16 id;
3849 	u8 *datap;
3850 	int ret = 0;
3851 
3852 	if (skb->len < sizeof(struct wmix_cmd_hdr)) {
3853 		ath6kl_err("bad packet 1\n");
3854 		return -EINVAL;
3855 	}
3856 
3857 	cmd = (struct wmix_cmd_hdr *) skb->data;
3858 	id = le32_to_cpu(cmd->cmd_id);
3859 
3860 	skb_pull(skb, sizeof(struct wmix_cmd_hdr));
3861 
3862 	datap = skb->data;
3863 	len = skb->len;
3864 
3865 	switch (id) {
3866 	case WMIX_HB_CHALLENGE_RESP_EVENTID:
3867 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event hb challenge resp\n");
3868 		ath6kl_wmi_hb_challenge_resp_event(wmi, datap, len);
3869 		break;
3870 	case WMIX_DBGLOG_EVENTID:
3871 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event dbglog len %d\n", len);
3872 		ath6kl_debug_fwlog_event(wmi->parent_dev, datap, len);
3873 		break;
3874 	default:
3875 		ath6kl_warn("unknown cmd id 0x%x\n", id);
3876 		ret = -EINVAL;
3877 		break;
3878 	}
3879 
3880 	return ret;
3881 }
3882 
3883 static int ath6kl_wmi_roam_tbl_event_rx(struct wmi *wmi, u8 *datap, int len)
3884 {
3885 	return ath6kl_debug_roam_tbl_event(wmi->parent_dev, datap, len);
3886 }
3887 
3888 /* Process interface specific wmi events, caller would free the datap */
3889 static int ath6kl_wmi_proc_events_vif(struct wmi *wmi, u16 if_idx, u16 cmd_id,
3890 					u8 *datap, u32 len)
3891 {
3892 	struct ath6kl_vif *vif;
3893 
3894 	vif = ath6kl_get_vif_by_index(wmi->parent_dev, if_idx);
3895 	if (!vif) {
3896 		ath6kl_dbg(ATH6KL_DBG_WMI,
3897 			   "Wmi event for unavailable vif, vif_index:%d\n",
3898 			    if_idx);
3899 		return -EINVAL;
3900 	}
3901 
3902 	switch (cmd_id) {
3903 	case WMI_CONNECT_EVENTID:
3904 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CONNECT_EVENTID\n");
3905 		return ath6kl_wmi_connect_event_rx(wmi, datap, len, vif);
3906 	case WMI_DISCONNECT_EVENTID:
3907 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DISCONNECT_EVENTID\n");
3908 		return ath6kl_wmi_disconnect_event_rx(wmi, datap, len, vif);
3909 	case WMI_TKIP_MICERR_EVENTID:
3910 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TKIP_MICERR_EVENTID\n");
3911 		return ath6kl_wmi_tkip_micerr_event_rx(wmi, datap, len, vif);
3912 	case WMI_BSSINFO_EVENTID:
3913 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_BSSINFO_EVENTID\n");
3914 		return ath6kl_wmi_bssinfo_event_rx(wmi, datap, len, vif);
3915 	case WMI_NEIGHBOR_REPORT_EVENTID:
3916 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_NEIGHBOR_REPORT_EVENTID\n");
3917 		return ath6kl_wmi_neighbor_report_event_rx(wmi, datap, len,
3918 							   vif);
3919 	case WMI_SCAN_COMPLETE_EVENTID:
3920 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SCAN_COMPLETE_EVENTID\n");
3921 		return ath6kl_wmi_scan_complete_rx(wmi, datap, len, vif);
3922 	case WMI_REPORT_STATISTICS_EVENTID:
3923 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_STATISTICS_EVENTID\n");
3924 		return ath6kl_wmi_stats_event_rx(wmi, datap, len, vif);
3925 	case WMI_CAC_EVENTID:
3926 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CAC_EVENTID\n");
3927 		return ath6kl_wmi_cac_event_rx(wmi, datap, len, vif);
3928 	case WMI_PSPOLL_EVENTID:
3929 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSPOLL_EVENTID\n");
3930 		return ath6kl_wmi_pspoll_event_rx(wmi, datap, len, vif);
3931 	case WMI_DTIMEXPIRY_EVENTID:
3932 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DTIMEXPIRY_EVENTID\n");
3933 		return ath6kl_wmi_dtimexpiry_event_rx(wmi, datap, len, vif);
3934 	case WMI_ADDBA_REQ_EVENTID:
3935 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_REQ_EVENTID\n");
3936 		return ath6kl_wmi_addba_req_event_rx(wmi, datap, len, vif);
3937 	case WMI_DELBA_REQ_EVENTID:
3938 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DELBA_REQ_EVENTID\n");
3939 		return ath6kl_wmi_delba_req_event_rx(wmi, datap, len, vif);
3940 	case WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID:
3941 		ath6kl_dbg(ATH6KL_DBG_WMI,
3942 			   "WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID");
3943 		return ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(wmi, vif);
3944 	case WMI_REMAIN_ON_CHNL_EVENTID:
3945 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REMAIN_ON_CHNL_EVENTID\n");
3946 		return ath6kl_wmi_remain_on_chnl_event_rx(wmi, datap, len, vif);
3947 	case WMI_CANCEL_REMAIN_ON_CHNL_EVENTID:
3948 		ath6kl_dbg(ATH6KL_DBG_WMI,
3949 			   "WMI_CANCEL_REMAIN_ON_CHNL_EVENTID\n");
3950 		return ath6kl_wmi_cancel_remain_on_chnl_event_rx(wmi, datap,
3951 								 len, vif);
3952 	case WMI_TX_STATUS_EVENTID:
3953 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_STATUS_EVENTID\n");
3954 		return ath6kl_wmi_tx_status_event_rx(wmi, datap, len, vif);
3955 	case WMI_RX_PROBE_REQ_EVENTID:
3956 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_PROBE_REQ_EVENTID\n");
3957 		return ath6kl_wmi_rx_probe_req_event_rx(wmi, datap, len, vif);
3958 	case WMI_RX_ACTION_EVENTID:
3959 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_ACTION_EVENTID\n");
3960 		return ath6kl_wmi_rx_action_event_rx(wmi, datap, len, vif);
3961 	case WMI_TXE_NOTIFY_EVENTID:
3962 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TXE_NOTIFY_EVENTID\n");
3963 		return ath6kl_wmi_txe_notify_event_rx(wmi, datap, len, vif);
3964 	default:
3965 		ath6kl_dbg(ATH6KL_DBG_WMI, "unknown cmd id 0x%x\n", cmd_id);
3966 		return -EINVAL;
3967 	}
3968 
3969 	return 0;
3970 }
3971 
3972 static int ath6kl_wmi_proc_events(struct wmi *wmi, struct sk_buff *skb)
3973 {
3974 	struct wmi_cmd_hdr *cmd;
3975 	int ret = 0;
3976 	u32 len;
3977 	u16 id;
3978 	u8 if_idx;
3979 	u8 *datap;
3980 
3981 	cmd = (struct wmi_cmd_hdr *) skb->data;
3982 	id = le16_to_cpu(cmd->cmd_id);
3983 	if_idx = le16_to_cpu(cmd->info1) & WMI_CMD_HDR_IF_ID_MASK;
3984 
3985 	skb_pull(skb, sizeof(struct wmi_cmd_hdr));
3986 	datap = skb->data;
3987 	len = skb->len;
3988 
3989 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi rx id %d len %d\n", id, len);
3990 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi rx ",
3991 			datap, len);
3992 
3993 	switch (id) {
3994 	case WMI_GET_BITRATE_CMDID:
3995 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_BITRATE_CMDID\n");
3996 		ret = ath6kl_wmi_bitrate_reply_rx(wmi, datap, len);
3997 		break;
3998 	case WMI_GET_CHANNEL_LIST_CMDID:
3999 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_CHANNEL_LIST_CMDID\n");
4000 		ret = ath6kl_wmi_ch_list_reply_rx(wmi, datap, len);
4001 		break;
4002 	case WMI_GET_TX_PWR_CMDID:
4003 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_TX_PWR_CMDID\n");
4004 		ret = ath6kl_wmi_tx_pwr_reply_rx(wmi, datap, len);
4005 		break;
4006 	case WMI_READY_EVENTID:
4007 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_READY_EVENTID\n");
4008 		ret = ath6kl_wmi_ready_event_rx(wmi, datap, len);
4009 		break;
4010 	case WMI_PEER_NODE_EVENTID:
4011 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PEER_NODE_EVENTID\n");
4012 		ret = ath6kl_wmi_peer_node_event_rx(wmi, datap, len);
4013 		break;
4014 	case WMI_REGDOMAIN_EVENTID:
4015 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REGDOMAIN_EVENTID\n");
4016 		ath6kl_wmi_regdomain_event(wmi, datap, len);
4017 		break;
4018 	case WMI_PSTREAM_TIMEOUT_EVENTID:
4019 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSTREAM_TIMEOUT_EVENTID\n");
4020 		ret = ath6kl_wmi_pstream_timeout_event_rx(wmi, datap, len);
4021 		break;
4022 	case WMI_CMDERROR_EVENTID:
4023 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CMDERROR_EVENTID\n");
4024 		ret = ath6kl_wmi_error_event_rx(wmi, datap, len);
4025 		break;
4026 	case WMI_RSSI_THRESHOLD_EVENTID:
4027 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RSSI_THRESHOLD_EVENTID\n");
4028 		ret = ath6kl_wmi_rssi_threshold_event_rx(wmi, datap, len);
4029 		break;
4030 	case WMI_ERROR_REPORT_EVENTID:
4031 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ERROR_REPORT_EVENTID\n");
4032 		break;
4033 	case WMI_OPT_RX_FRAME_EVENTID:
4034 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_OPT_RX_FRAME_EVENTID\n");
4035 		/* this event has been deprecated */
4036 		break;
4037 	case WMI_REPORT_ROAM_TBL_EVENTID:
4038 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_TBL_EVENTID\n");
4039 		ret = ath6kl_wmi_roam_tbl_event_rx(wmi, datap, len);
4040 		break;
4041 	case WMI_EXTENSION_EVENTID:
4042 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_EXTENSION_EVENTID\n");
4043 		ret = ath6kl_wmi_control_rx_xtnd(wmi, skb);
4044 		break;
4045 	case WMI_CHANNEL_CHANGE_EVENTID:
4046 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CHANNEL_CHANGE_EVENTID\n");
4047 		break;
4048 	case WMI_REPORT_ROAM_DATA_EVENTID:
4049 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_DATA_EVENTID\n");
4050 		break;
4051 	case WMI_TEST_EVENTID:
4052 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TEST_EVENTID\n");
4053 		ret = ath6kl_wmi_test_rx(wmi, datap, len);
4054 		break;
4055 	case WMI_GET_FIXRATES_CMDID:
4056 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_FIXRATES_CMDID\n");
4057 		ret = ath6kl_wmi_ratemask_reply_rx(wmi, datap, len);
4058 		break;
4059 	case WMI_TX_RETRY_ERR_EVENTID:
4060 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_RETRY_ERR_EVENTID\n");
4061 		break;
4062 	case WMI_SNR_THRESHOLD_EVENTID:
4063 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SNR_THRESHOLD_EVENTID\n");
4064 		ret = ath6kl_wmi_snr_threshold_event_rx(wmi, datap, len);
4065 		break;
4066 	case WMI_LQ_THRESHOLD_EVENTID:
4067 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_LQ_THRESHOLD_EVENTID\n");
4068 		break;
4069 	case WMI_APLIST_EVENTID:
4070 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_APLIST_EVENTID\n");
4071 		ret = ath6kl_wmi_aplist_event_rx(wmi, datap, len);
4072 		break;
4073 	case WMI_GET_KEEPALIVE_CMDID:
4074 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_KEEPALIVE_CMDID\n");
4075 		ret = ath6kl_wmi_keepalive_reply_rx(wmi, datap, len);
4076 		break;
4077 	case WMI_GET_WOW_LIST_EVENTID:
4078 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_WOW_LIST_EVENTID\n");
4079 		break;
4080 	case WMI_GET_PMKID_LIST_EVENTID:
4081 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_PMKID_LIST_EVENTID\n");
4082 		ret = ath6kl_wmi_get_pmkid_list_event_rx(wmi, datap, len);
4083 		break;
4084 	case WMI_SET_PARAMS_REPLY_EVENTID:
4085 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SET_PARAMS_REPLY_EVENTID\n");
4086 		break;
4087 	case WMI_ADDBA_RESP_EVENTID:
4088 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_RESP_EVENTID\n");
4089 		break;
4090 	case WMI_REPORT_BTCOEX_CONFIG_EVENTID:
4091 		ath6kl_dbg(ATH6KL_DBG_WMI,
4092 			   "WMI_REPORT_BTCOEX_CONFIG_EVENTID\n");
4093 		break;
4094 	case WMI_REPORT_BTCOEX_STATS_EVENTID:
4095 		ath6kl_dbg(ATH6KL_DBG_WMI,
4096 			   "WMI_REPORT_BTCOEX_STATS_EVENTID\n");
4097 		break;
4098 	case WMI_TX_COMPLETE_EVENTID:
4099 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_COMPLETE_EVENTID\n");
4100 		ret = ath6kl_wmi_tx_complete_event_rx(datap, len);
4101 		break;
4102 	case WMI_P2P_CAPABILITIES_EVENTID:
4103 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_CAPABILITIES_EVENTID\n");
4104 		ret = ath6kl_wmi_p2p_capabilities_event_rx(datap, len);
4105 		break;
4106 	case WMI_P2P_INFO_EVENTID:
4107 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_INFO_EVENTID\n");
4108 		ret = ath6kl_wmi_p2p_info_event_rx(datap, len);
4109 		break;
4110 	default:
4111 		/* may be the event is interface specific */
4112 		ret = ath6kl_wmi_proc_events_vif(wmi, if_idx, id, datap, len);
4113 		break;
4114 	}
4115 
4116 	dev_kfree_skb(skb);
4117 	return ret;
4118 }
4119 
4120 /* Control Path */
4121 int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb)
4122 {
4123 	if (WARN_ON(skb == NULL))
4124 		return -EINVAL;
4125 
4126 	if (skb->len < sizeof(struct wmi_cmd_hdr)) {
4127 		ath6kl_err("bad packet 1\n");
4128 		dev_kfree_skb(skb);
4129 		return -EINVAL;
4130 	}
4131 
4132 	trace_ath6kl_wmi_event(skb->data, skb->len);
4133 
4134 	return ath6kl_wmi_proc_events(wmi, skb);
4135 }
4136 
4137 void ath6kl_wmi_reset(struct wmi *wmi)
4138 {
4139 	spin_lock_bh(&wmi->lock);
4140 
4141 	wmi->fat_pipe_exist = 0;
4142 	memset(wmi->stream_exist_for_ac, 0, sizeof(wmi->stream_exist_for_ac));
4143 
4144 	spin_unlock_bh(&wmi->lock);
4145 }
4146 
4147 void *ath6kl_wmi_init(struct ath6kl *dev)
4148 {
4149 	struct wmi *wmi;
4150 
4151 	wmi = kzalloc(sizeof(struct wmi), GFP_KERNEL);
4152 	if (!wmi)
4153 		return NULL;
4154 
4155 	spin_lock_init(&wmi->lock);
4156 
4157 	wmi->parent_dev = dev;
4158 
4159 	wmi->pwr_mode = REC_POWER;
4160 
4161 	ath6kl_wmi_reset(wmi);
4162 
4163 	return wmi;
4164 }
4165 
4166 void ath6kl_wmi_shutdown(struct wmi *wmi)
4167 {
4168 	if (!wmi)
4169 		return;
4170 
4171 	kfree(wmi->last_mgmt_tx_frame);
4172 	kfree(wmi);
4173 }
4174