xref: /openbmc/linux/drivers/net/wireless/ath/ath6kl/wmi.c (revision 57fbcce3)
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 0:
425 		memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
426 		memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
427 		break;
428 	case IEEE80211_FCTL_TODS:
429 		memcpy(eth_hdr.h_dest, wh.addr3, ETH_ALEN);
430 		memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
431 		break;
432 	case IEEE80211_FCTL_FROMDS:
433 		memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
434 		memcpy(eth_hdr.h_source, wh.addr3, ETH_ALEN);
435 		break;
436 	case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS:
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 	ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
780 			    NO_SYNC_WMIFLAG);
781 
782 	return 0;
783 }
784 
785 int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid)
786 {
787 	struct sk_buff *skb;
788 	struct roam_ctrl_cmd *cmd;
789 
790 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
791 	if (!skb)
792 		return -ENOMEM;
793 
794 	cmd = (struct roam_ctrl_cmd *) skb->data;
795 
796 	memcpy(cmd->info.bssid, bssid, ETH_ALEN);
797 	cmd->roam_ctrl = WMI_FORCE_ROAM;
798 
799 	ath6kl_dbg(ATH6KL_DBG_WMI, "force roam to %pM\n", bssid);
800 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
801 				   NO_SYNC_WMIFLAG);
802 }
803 
804 int ath6kl_wmi_ap_set_beacon_intvl_cmd(struct wmi *wmi, u8 if_idx,
805 				       u32 beacon_intvl)
806 {
807 	struct sk_buff *skb;
808 	struct set_beacon_int_cmd *cmd;
809 
810 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
811 	if (!skb)
812 		return -ENOMEM;
813 
814 	cmd = (struct set_beacon_int_cmd *) skb->data;
815 
816 	cmd->beacon_intvl = cpu_to_le32(beacon_intvl);
817 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
818 				   WMI_SET_BEACON_INT_CMDID, NO_SYNC_WMIFLAG);
819 }
820 
821 int ath6kl_wmi_ap_set_dtim_cmd(struct wmi *wmi, u8 if_idx, u32 dtim_period)
822 {
823 	struct sk_buff *skb;
824 	struct set_dtim_cmd *cmd;
825 
826 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
827 	if (!skb)
828 		return -ENOMEM;
829 
830 	cmd = (struct set_dtim_cmd *) skb->data;
831 
832 	cmd->dtim_period = cpu_to_le32(dtim_period);
833 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
834 				   WMI_AP_SET_DTIM_CMDID, NO_SYNC_WMIFLAG);
835 }
836 
837 int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode)
838 {
839 	struct sk_buff *skb;
840 	struct roam_ctrl_cmd *cmd;
841 
842 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
843 	if (!skb)
844 		return -ENOMEM;
845 
846 	cmd = (struct roam_ctrl_cmd *) skb->data;
847 
848 	cmd->info.roam_mode = mode;
849 	cmd->roam_ctrl = WMI_SET_ROAM_MODE;
850 
851 	ath6kl_dbg(ATH6KL_DBG_WMI, "set roam mode %d\n", mode);
852 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
853 				   NO_SYNC_WMIFLAG);
854 }
855 
856 static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len,
857 				       struct ath6kl_vif *vif)
858 {
859 	struct wmi_connect_event *ev;
860 	u8 *pie, *peie;
861 
862 	if (len < sizeof(struct wmi_connect_event))
863 		return -EINVAL;
864 
865 	ev = (struct wmi_connect_event *) datap;
866 
867 	if (vif->nw_type == AP_NETWORK) {
868 		/* AP mode start/STA connected event */
869 		struct net_device *dev = vif->ndev;
870 		if (memcmp(dev->dev_addr, ev->u.ap_bss.bssid, ETH_ALEN) == 0) {
871 			ath6kl_dbg(ATH6KL_DBG_WMI,
872 				   "%s: freq %d bssid %pM (AP started)\n",
873 				   __func__, le16_to_cpu(ev->u.ap_bss.ch),
874 				   ev->u.ap_bss.bssid);
875 			ath6kl_connect_ap_mode_bss(
876 				vif, le16_to_cpu(ev->u.ap_bss.ch));
877 		} else {
878 			ath6kl_dbg(ATH6KL_DBG_WMI,
879 				   "%s: aid %u mac_addr %pM auth=%u keymgmt=%u cipher=%u apsd_info=%u (STA connected)\n",
880 				   __func__, ev->u.ap_sta.aid,
881 				   ev->u.ap_sta.mac_addr,
882 				   ev->u.ap_sta.auth,
883 				   ev->u.ap_sta.keymgmt,
884 				   le16_to_cpu(ev->u.ap_sta.cipher),
885 				   ev->u.ap_sta.apsd_info);
886 
887 			ath6kl_connect_ap_mode_sta(
888 				vif, ev->u.ap_sta.aid, ev->u.ap_sta.mac_addr,
889 				ev->u.ap_sta.keymgmt,
890 				le16_to_cpu(ev->u.ap_sta.cipher),
891 				ev->u.ap_sta.auth, ev->assoc_req_len,
892 				ev->assoc_info + ev->beacon_ie_len,
893 				ev->u.ap_sta.apsd_info);
894 		}
895 		return 0;
896 	}
897 
898 	/* STA/IBSS mode connection event */
899 
900 	ath6kl_dbg(ATH6KL_DBG_WMI,
901 		   "wmi event connect freq %d bssid %pM listen_intvl %d beacon_intvl %d type %d\n",
902 		   le16_to_cpu(ev->u.sta.ch), ev->u.sta.bssid,
903 		   le16_to_cpu(ev->u.sta.listen_intvl),
904 		   le16_to_cpu(ev->u.sta.beacon_intvl),
905 		   le32_to_cpu(ev->u.sta.nw_type));
906 
907 	/* Start of assoc rsp IEs */
908 	pie = ev->assoc_info + ev->beacon_ie_len +
909 	      ev->assoc_req_len + (sizeof(u16) * 3); /* capinfo, status, aid */
910 
911 	/* End of assoc rsp IEs */
912 	peie = ev->assoc_info + ev->beacon_ie_len + ev->assoc_req_len +
913 	    ev->assoc_resp_len;
914 
915 	while (pie < peie) {
916 		switch (*pie) {
917 		case WLAN_EID_VENDOR_SPECIFIC:
918 			if (pie[1] > 3 && pie[2] == 0x00 && pie[3] == 0x50 &&
919 			    pie[4] == 0xf2 && pie[5] == WMM_OUI_TYPE) {
920 				/* WMM OUT (00:50:F2) */
921 				if (pie[1] > 5 &&
922 				    pie[6] == WMM_PARAM_OUI_SUBTYPE)
923 					wmi->is_wmm_enabled = true;
924 			}
925 			break;
926 		}
927 
928 		if (wmi->is_wmm_enabled)
929 			break;
930 
931 		pie += pie[1] + 2;
932 	}
933 
934 	ath6kl_connect_event(vif, le16_to_cpu(ev->u.sta.ch),
935 			     ev->u.sta.bssid,
936 			     le16_to_cpu(ev->u.sta.listen_intvl),
937 			     le16_to_cpu(ev->u.sta.beacon_intvl),
938 			     le32_to_cpu(ev->u.sta.nw_type),
939 			     ev->beacon_ie_len, ev->assoc_req_len,
940 			     ev->assoc_resp_len, ev->assoc_info);
941 
942 	return 0;
943 }
944 
945 static struct country_code_to_enum_rd *
946 ath6kl_regd_find_country(u16 countryCode)
947 {
948 	int i;
949 
950 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
951 		if (allCountries[i].countryCode == countryCode)
952 			return &allCountries[i];
953 	}
954 
955 	return NULL;
956 }
957 
958 static struct reg_dmn_pair_mapping *
959 ath6kl_get_regpair(u16 regdmn)
960 {
961 	int i;
962 
963 	if (regdmn == NO_ENUMRD)
964 		return NULL;
965 
966 	for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) {
967 		if (regDomainPairs[i].reg_domain == regdmn)
968 			return &regDomainPairs[i];
969 	}
970 
971 	return NULL;
972 }
973 
974 static struct country_code_to_enum_rd *
975 ath6kl_regd_find_country_by_rd(u16 regdmn)
976 {
977 	int i;
978 
979 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
980 		if (allCountries[i].regDmnEnum == regdmn)
981 			return &allCountries[i];
982 	}
983 
984 	return NULL;
985 }
986 
987 static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len)
988 {
989 	struct ath6kl_wmi_regdomain *ev;
990 	struct country_code_to_enum_rd *country = NULL;
991 	struct reg_dmn_pair_mapping *regpair = NULL;
992 	char alpha2[2];
993 	u32 reg_code;
994 
995 	ev = (struct ath6kl_wmi_regdomain *) datap;
996 	reg_code = le32_to_cpu(ev->reg_code);
997 
998 	if ((reg_code >> ATH6KL_COUNTRY_RD_SHIFT) & COUNTRY_ERD_FLAG) {
999 		country = ath6kl_regd_find_country((u16) reg_code);
1000 	} else if (!(((u16) reg_code & WORLD_SKU_MASK) == WORLD_SKU_PREFIX)) {
1001 		regpair = ath6kl_get_regpair((u16) reg_code);
1002 		country = ath6kl_regd_find_country_by_rd((u16) reg_code);
1003 		if (regpair)
1004 			ath6kl_dbg(ATH6KL_DBG_WMI, "Regpair used: 0x%0x\n",
1005 				   regpair->reg_domain);
1006 		else
1007 			ath6kl_warn("Regpair not found reg_code 0x%0x\n",
1008 				    reg_code);
1009 	}
1010 
1011 	if (country && wmi->parent_dev->wiphy_registered) {
1012 		alpha2[0] = country->isoName[0];
1013 		alpha2[1] = country->isoName[1];
1014 
1015 		regulatory_hint(wmi->parent_dev->wiphy, alpha2);
1016 
1017 		ath6kl_dbg(ATH6KL_DBG_WMI, "Country alpha2 being used: %c%c\n",
1018 			   alpha2[0], alpha2[1]);
1019 	}
1020 }
1021 
1022 static int ath6kl_wmi_disconnect_event_rx(struct wmi *wmi, u8 *datap, int len,
1023 					  struct ath6kl_vif *vif)
1024 {
1025 	struct wmi_disconnect_event *ev;
1026 	wmi->traffic_class = 100;
1027 
1028 	if (len < sizeof(struct wmi_disconnect_event))
1029 		return -EINVAL;
1030 
1031 	ev = (struct wmi_disconnect_event *) datap;
1032 
1033 	ath6kl_dbg(ATH6KL_DBG_WMI,
1034 		   "wmi event disconnect proto_reason %d bssid %pM wmi_reason %d assoc_resp_len %d\n",
1035 		   le16_to_cpu(ev->proto_reason_status), ev->bssid,
1036 		   ev->disconn_reason, ev->assoc_resp_len);
1037 
1038 	wmi->is_wmm_enabled = false;
1039 
1040 	ath6kl_disconnect_event(vif, ev->disconn_reason,
1041 				ev->bssid, ev->assoc_resp_len, ev->assoc_info,
1042 				le16_to_cpu(ev->proto_reason_status));
1043 
1044 	return 0;
1045 }
1046 
1047 static int ath6kl_wmi_peer_node_event_rx(struct wmi *wmi, u8 *datap, int len)
1048 {
1049 	struct wmi_peer_node_event *ev;
1050 
1051 	if (len < sizeof(struct wmi_peer_node_event))
1052 		return -EINVAL;
1053 
1054 	ev = (struct wmi_peer_node_event *) datap;
1055 
1056 	if (ev->event_code == PEER_NODE_JOIN_EVENT)
1057 		ath6kl_dbg(ATH6KL_DBG_WMI, "joined node with mac addr: %pM\n",
1058 			   ev->peer_mac_addr);
1059 	else if (ev->event_code == PEER_NODE_LEAVE_EVENT)
1060 		ath6kl_dbg(ATH6KL_DBG_WMI, "left node with mac addr: %pM\n",
1061 			   ev->peer_mac_addr);
1062 
1063 	return 0;
1064 }
1065 
1066 static int ath6kl_wmi_tkip_micerr_event_rx(struct wmi *wmi, u8 *datap, int len,
1067 					   struct ath6kl_vif *vif)
1068 {
1069 	struct wmi_tkip_micerr_event *ev;
1070 
1071 	if (len < sizeof(struct wmi_tkip_micerr_event))
1072 		return -EINVAL;
1073 
1074 	ev = (struct wmi_tkip_micerr_event *) datap;
1075 
1076 	ath6kl_tkip_micerr_event(vif, ev->key_id, ev->is_mcast);
1077 
1078 	return 0;
1079 }
1080 
1081 void ath6kl_wmi_sscan_timer(unsigned long ptr)
1082 {
1083 	struct ath6kl_vif *vif = (struct ath6kl_vif *) ptr;
1084 
1085 	cfg80211_sched_scan_results(vif->ar->wiphy);
1086 }
1087 
1088 static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len,
1089 				       struct ath6kl_vif *vif)
1090 {
1091 	struct wmi_bss_info_hdr2 *bih;
1092 	u8 *buf;
1093 	struct ieee80211_channel *channel;
1094 	struct ath6kl *ar = wmi->parent_dev;
1095 	struct cfg80211_bss *bss;
1096 
1097 	if (len <= sizeof(struct wmi_bss_info_hdr2))
1098 		return -EINVAL;
1099 
1100 	bih = (struct wmi_bss_info_hdr2 *) datap;
1101 	buf = datap + sizeof(struct wmi_bss_info_hdr2);
1102 	len -= sizeof(struct wmi_bss_info_hdr2);
1103 
1104 	ath6kl_dbg(ATH6KL_DBG_WMI,
1105 		   "bss info evt - ch %u, snr %d, rssi %d, bssid \"%pM\" "
1106 		   "frame_type=%d\n",
1107 		   bih->ch, bih->snr, bih->snr - 95, bih->bssid,
1108 		   bih->frame_type);
1109 
1110 	if (bih->frame_type != BEACON_FTYPE &&
1111 	    bih->frame_type != PROBERESP_FTYPE)
1112 		return 0; /* Only update BSS table for now */
1113 
1114 	if (bih->frame_type == BEACON_FTYPE &&
1115 	    test_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags)) {
1116 		clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
1117 		ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1118 					 NONE_BSS_FILTER, 0);
1119 	}
1120 
1121 	channel = ieee80211_get_channel(ar->wiphy, le16_to_cpu(bih->ch));
1122 	if (channel == NULL)
1123 		return -EINVAL;
1124 
1125 	if (len < 8 + 2 + 2)
1126 		return -EINVAL;
1127 
1128 	if (bih->frame_type == BEACON_FTYPE &&
1129 	    test_bit(CONNECTED, &vif->flags) &&
1130 	    memcmp(bih->bssid, vif->bssid, ETH_ALEN) == 0) {
1131 		const u8 *tim;
1132 		tim = cfg80211_find_ie(WLAN_EID_TIM, buf + 8 + 2 + 2,
1133 				       len - 8 - 2 - 2);
1134 		if (tim && tim[1] >= 2) {
1135 			vif->assoc_bss_dtim_period = tim[3];
1136 			set_bit(DTIM_PERIOD_AVAIL, &vif->flags);
1137 		}
1138 	}
1139 
1140 	bss = cfg80211_inform_bss(ar->wiphy, channel,
1141 				  bih->frame_type == BEACON_FTYPE ?
1142 					CFG80211_BSS_FTYPE_BEACON :
1143 					CFG80211_BSS_FTYPE_PRESP,
1144 				  bih->bssid, get_unaligned_le64((__le64 *)buf),
1145 				  get_unaligned_le16(((__le16 *)buf) + 5),
1146 				  get_unaligned_le16(((__le16 *)buf) + 4),
1147 				  buf + 8 + 2 + 2, len - 8 - 2 - 2,
1148 				  (bih->snr - 95) * 100, GFP_ATOMIC);
1149 	if (bss == NULL)
1150 		return -ENOMEM;
1151 	cfg80211_put_bss(ar->wiphy, bss);
1152 
1153 	/*
1154 	 * Firmware doesn't return any event when scheduled scan has
1155 	 * finished, so we need to use a timer to find out when there are
1156 	 * no more results.
1157 	 *
1158 	 * The timer is started from the first bss info received, otherwise
1159 	 * the timer would not ever fire if the scan interval is short
1160 	 * enough.
1161 	 */
1162 	if (test_bit(SCHED_SCANNING, &vif->flags) &&
1163 	    !timer_pending(&vif->sched_scan_timer)) {
1164 		mod_timer(&vif->sched_scan_timer, jiffies +
1165 			  msecs_to_jiffies(ATH6KL_SCHED_SCAN_RESULT_DELAY));
1166 	}
1167 
1168 	return 0;
1169 }
1170 
1171 /* Inactivity timeout of a fatpipe(pstream) at the target */
1172 static int ath6kl_wmi_pstream_timeout_event_rx(struct wmi *wmi, u8 *datap,
1173 					       int len)
1174 {
1175 	struct wmi_pstream_timeout_event *ev;
1176 
1177 	if (len < sizeof(struct wmi_pstream_timeout_event))
1178 		return -EINVAL;
1179 
1180 	ev = (struct wmi_pstream_timeout_event *) datap;
1181 
1182 	/*
1183 	 * When the pstream (fat pipe == AC) timesout, it means there were
1184 	 * no thinStreams within this pstream & it got implicitly created
1185 	 * due to data flow on this AC. We start the inactivity timer only
1186 	 * for implicitly created pstream. Just reset the host state.
1187 	 */
1188 	spin_lock_bh(&wmi->lock);
1189 	wmi->stream_exist_for_ac[ev->traffic_class] = 0;
1190 	wmi->fat_pipe_exist &= ~(1 << ev->traffic_class);
1191 	spin_unlock_bh(&wmi->lock);
1192 
1193 	/* Indicate inactivity to driver layer for this fatpipe (pstream) */
1194 	ath6kl_indicate_tx_activity(wmi->parent_dev, ev->traffic_class, false);
1195 
1196 	return 0;
1197 }
1198 
1199 static int ath6kl_wmi_bitrate_reply_rx(struct wmi *wmi, u8 *datap, int len)
1200 {
1201 	struct wmi_bit_rate_reply *reply;
1202 	s32 rate;
1203 	u32 sgi, index;
1204 
1205 	if (len < sizeof(struct wmi_bit_rate_reply))
1206 		return -EINVAL;
1207 
1208 	reply = (struct wmi_bit_rate_reply *) datap;
1209 
1210 	ath6kl_dbg(ATH6KL_DBG_WMI, "rateindex %d\n", reply->rate_index);
1211 
1212 	if (reply->rate_index == (s8) RATE_AUTO) {
1213 		rate = RATE_AUTO;
1214 	} else {
1215 		index = reply->rate_index & 0x7f;
1216 		if (WARN_ON_ONCE(index > (RATE_MCS_7_40 + 1)))
1217 			return -EINVAL;
1218 
1219 		sgi = (reply->rate_index & 0x80) ? 1 : 0;
1220 		rate = wmi_rate_tbl[index][sgi];
1221 	}
1222 
1223 	ath6kl_wakeup_event(wmi->parent_dev);
1224 
1225 	return 0;
1226 }
1227 
1228 static int ath6kl_wmi_test_rx(struct wmi *wmi, u8 *datap, int len)
1229 {
1230 	ath6kl_tm_rx_event(wmi->parent_dev, datap, len);
1231 
1232 	return 0;
1233 }
1234 
1235 static int ath6kl_wmi_ratemask_reply_rx(struct wmi *wmi, u8 *datap, int len)
1236 {
1237 	if (len < sizeof(struct wmi_fix_rates_reply))
1238 		return -EINVAL;
1239 
1240 	ath6kl_wakeup_event(wmi->parent_dev);
1241 
1242 	return 0;
1243 }
1244 
1245 static int ath6kl_wmi_ch_list_reply_rx(struct wmi *wmi, u8 *datap, int len)
1246 {
1247 	if (len < sizeof(struct wmi_channel_list_reply))
1248 		return -EINVAL;
1249 
1250 	ath6kl_wakeup_event(wmi->parent_dev);
1251 
1252 	return 0;
1253 }
1254 
1255 static int ath6kl_wmi_tx_pwr_reply_rx(struct wmi *wmi, u8 *datap, int len)
1256 {
1257 	struct wmi_tx_pwr_reply *reply;
1258 
1259 	if (len < sizeof(struct wmi_tx_pwr_reply))
1260 		return -EINVAL;
1261 
1262 	reply = (struct wmi_tx_pwr_reply *) datap;
1263 	ath6kl_txpwr_rx_evt(wmi->parent_dev, reply->dbM);
1264 
1265 	return 0;
1266 }
1267 
1268 static int ath6kl_wmi_keepalive_reply_rx(struct wmi *wmi, u8 *datap, int len)
1269 {
1270 	if (len < sizeof(struct wmi_get_keepalive_cmd))
1271 		return -EINVAL;
1272 
1273 	ath6kl_wakeup_event(wmi->parent_dev);
1274 
1275 	return 0;
1276 }
1277 
1278 static int ath6kl_wmi_scan_complete_rx(struct wmi *wmi, u8 *datap, int len,
1279 				       struct ath6kl_vif *vif)
1280 {
1281 	struct wmi_scan_complete_event *ev;
1282 
1283 	ev = (struct wmi_scan_complete_event *) datap;
1284 
1285 	ath6kl_scan_complete_evt(vif, a_sle32_to_cpu(ev->status));
1286 	wmi->is_probe_ssid = false;
1287 
1288 	return 0;
1289 }
1290 
1291 static int ath6kl_wmi_neighbor_report_event_rx(struct wmi *wmi, u8 *datap,
1292 					       int len, struct ath6kl_vif *vif)
1293 {
1294 	struct wmi_neighbor_report_event *ev;
1295 	u8 i;
1296 
1297 	if (len < sizeof(*ev))
1298 		return -EINVAL;
1299 	ev = (struct wmi_neighbor_report_event *) datap;
1300 	if (sizeof(*ev) + ev->num_neighbors * sizeof(struct wmi_neighbor_info)
1301 	    > len) {
1302 		ath6kl_dbg(ATH6KL_DBG_WMI,
1303 			   "truncated neighbor event (num=%d len=%d)\n",
1304 			   ev->num_neighbors, len);
1305 		return -EINVAL;
1306 	}
1307 	for (i = 0; i < ev->num_neighbors; i++) {
1308 		ath6kl_dbg(ATH6KL_DBG_WMI, "neighbor %d/%d - %pM 0x%x\n",
1309 			   i + 1, ev->num_neighbors, ev->neighbor[i].bssid,
1310 			   ev->neighbor[i].bss_flags);
1311 		cfg80211_pmksa_candidate_notify(vif->ndev, i,
1312 						ev->neighbor[i].bssid,
1313 						!!(ev->neighbor[i].bss_flags &
1314 						   WMI_PREAUTH_CAPABLE_BSS),
1315 						GFP_ATOMIC);
1316 	}
1317 
1318 	return 0;
1319 }
1320 
1321 /*
1322  * Target is reporting a programming error.  This is for
1323  * developer aid only.  Target only checks a few common violations
1324  * and it is responsibility of host to do all error checking.
1325  * Behavior of target after wmi error event is undefined.
1326  * A reset is recommended.
1327  */
1328 static int ath6kl_wmi_error_event_rx(struct wmi *wmi, u8 *datap, int len)
1329 {
1330 	const char *type = "unknown error";
1331 	struct wmi_cmd_error_event *ev;
1332 	ev = (struct wmi_cmd_error_event *) datap;
1333 
1334 	switch (ev->err_code) {
1335 	case INVALID_PARAM:
1336 		type = "invalid parameter";
1337 		break;
1338 	case ILLEGAL_STATE:
1339 		type = "invalid state";
1340 		break;
1341 	case INTERNAL_ERROR:
1342 		type = "internal error";
1343 		break;
1344 	}
1345 
1346 	ath6kl_dbg(ATH6KL_DBG_WMI, "programming error, cmd=%d %s\n",
1347 		   ev->cmd_id, type);
1348 
1349 	return 0;
1350 }
1351 
1352 static int ath6kl_wmi_stats_event_rx(struct wmi *wmi, u8 *datap, int len,
1353 				     struct ath6kl_vif *vif)
1354 {
1355 	ath6kl_tgt_stats_event(vif, datap, len);
1356 
1357 	return 0;
1358 }
1359 
1360 static u8 ath6kl_wmi_get_upper_threshold(s16 rssi,
1361 					 struct sq_threshold_params *sq_thresh,
1362 					 u32 size)
1363 {
1364 	u32 index;
1365 	u8 threshold = (u8) sq_thresh->upper_threshold[size - 1];
1366 
1367 	/* The list is already in sorted order. Get the next lower value */
1368 	for (index = 0; index < size; index++) {
1369 		if (rssi < sq_thresh->upper_threshold[index]) {
1370 			threshold = (u8) sq_thresh->upper_threshold[index];
1371 			break;
1372 		}
1373 	}
1374 
1375 	return threshold;
1376 }
1377 
1378 static u8 ath6kl_wmi_get_lower_threshold(s16 rssi,
1379 					 struct sq_threshold_params *sq_thresh,
1380 					 u32 size)
1381 {
1382 	u32 index;
1383 	u8 threshold = (u8) sq_thresh->lower_threshold[size - 1];
1384 
1385 	/* The list is already in sorted order. Get the next lower value */
1386 	for (index = 0; index < size; index++) {
1387 		if (rssi > sq_thresh->lower_threshold[index]) {
1388 			threshold = (u8) sq_thresh->lower_threshold[index];
1389 			break;
1390 		}
1391 	}
1392 
1393 	return threshold;
1394 }
1395 
1396 static int ath6kl_wmi_send_rssi_threshold_params(struct wmi *wmi,
1397 			struct wmi_rssi_threshold_params_cmd *rssi_cmd)
1398 {
1399 	struct sk_buff *skb;
1400 	struct wmi_rssi_threshold_params_cmd *cmd;
1401 
1402 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1403 	if (!skb)
1404 		return -ENOMEM;
1405 
1406 	cmd = (struct wmi_rssi_threshold_params_cmd *) skb->data;
1407 	memcpy(cmd, rssi_cmd, sizeof(struct wmi_rssi_threshold_params_cmd));
1408 
1409 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_RSSI_THRESHOLD_PARAMS_CMDID,
1410 				   NO_SYNC_WMIFLAG);
1411 }
1412 
1413 static int ath6kl_wmi_rssi_threshold_event_rx(struct wmi *wmi, u8 *datap,
1414 					      int len)
1415 {
1416 	struct wmi_rssi_threshold_event *reply;
1417 	struct wmi_rssi_threshold_params_cmd cmd;
1418 	struct sq_threshold_params *sq_thresh;
1419 	enum wmi_rssi_threshold_val new_threshold;
1420 	u8 upper_rssi_threshold, lower_rssi_threshold;
1421 	s16 rssi;
1422 	int ret;
1423 
1424 	if (len < sizeof(struct wmi_rssi_threshold_event))
1425 		return -EINVAL;
1426 
1427 	reply = (struct wmi_rssi_threshold_event *) datap;
1428 	new_threshold = (enum wmi_rssi_threshold_val) reply->range;
1429 	rssi = a_sle16_to_cpu(reply->rssi);
1430 
1431 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_RSSI];
1432 
1433 	/*
1434 	 * Identify the threshold breached and communicate that to the app.
1435 	 * After that install a new set of thresholds based on the signal
1436 	 * quality reported by the target
1437 	 */
1438 	if (new_threshold) {
1439 		/* Upper threshold breached */
1440 		if (rssi < sq_thresh->upper_threshold[0]) {
1441 			ath6kl_dbg(ATH6KL_DBG_WMI,
1442 				   "spurious upper rssi threshold event: %d\n",
1443 				   rssi);
1444 		} else if ((rssi < sq_thresh->upper_threshold[1]) &&
1445 			   (rssi >= sq_thresh->upper_threshold[0])) {
1446 			new_threshold = WMI_RSSI_THRESHOLD1_ABOVE;
1447 		} else if ((rssi < sq_thresh->upper_threshold[2]) &&
1448 			   (rssi >= sq_thresh->upper_threshold[1])) {
1449 			new_threshold = WMI_RSSI_THRESHOLD2_ABOVE;
1450 		} else if ((rssi < sq_thresh->upper_threshold[3]) &&
1451 			   (rssi >= sq_thresh->upper_threshold[2])) {
1452 			new_threshold = WMI_RSSI_THRESHOLD3_ABOVE;
1453 		} else if ((rssi < sq_thresh->upper_threshold[4]) &&
1454 			   (rssi >= sq_thresh->upper_threshold[3])) {
1455 			new_threshold = WMI_RSSI_THRESHOLD4_ABOVE;
1456 		} else if ((rssi < sq_thresh->upper_threshold[5]) &&
1457 			   (rssi >= sq_thresh->upper_threshold[4])) {
1458 			new_threshold = WMI_RSSI_THRESHOLD5_ABOVE;
1459 		} else if (rssi >= sq_thresh->upper_threshold[5]) {
1460 			new_threshold = WMI_RSSI_THRESHOLD6_ABOVE;
1461 		}
1462 	} else {
1463 		/* Lower threshold breached */
1464 		if (rssi > sq_thresh->lower_threshold[0]) {
1465 			ath6kl_dbg(ATH6KL_DBG_WMI,
1466 				   "spurious lower rssi threshold event: %d %d\n",
1467 				rssi, sq_thresh->lower_threshold[0]);
1468 		} else if ((rssi > sq_thresh->lower_threshold[1]) &&
1469 			   (rssi <= sq_thresh->lower_threshold[0])) {
1470 			new_threshold = WMI_RSSI_THRESHOLD6_BELOW;
1471 		} else if ((rssi > sq_thresh->lower_threshold[2]) &&
1472 			   (rssi <= sq_thresh->lower_threshold[1])) {
1473 			new_threshold = WMI_RSSI_THRESHOLD5_BELOW;
1474 		} else if ((rssi > sq_thresh->lower_threshold[3]) &&
1475 			   (rssi <= sq_thresh->lower_threshold[2])) {
1476 			new_threshold = WMI_RSSI_THRESHOLD4_BELOW;
1477 		} else if ((rssi > sq_thresh->lower_threshold[4]) &&
1478 			   (rssi <= sq_thresh->lower_threshold[3])) {
1479 			new_threshold = WMI_RSSI_THRESHOLD3_BELOW;
1480 		} else if ((rssi > sq_thresh->lower_threshold[5]) &&
1481 			   (rssi <= sq_thresh->lower_threshold[4])) {
1482 			new_threshold = WMI_RSSI_THRESHOLD2_BELOW;
1483 		} else if (rssi <= sq_thresh->lower_threshold[5]) {
1484 			new_threshold = WMI_RSSI_THRESHOLD1_BELOW;
1485 		}
1486 	}
1487 
1488 	/* Calculate and install the next set of thresholds */
1489 	lower_rssi_threshold = ath6kl_wmi_get_lower_threshold(rssi, sq_thresh,
1490 				       sq_thresh->lower_threshold_valid_count);
1491 	upper_rssi_threshold = ath6kl_wmi_get_upper_threshold(rssi, sq_thresh,
1492 				       sq_thresh->upper_threshold_valid_count);
1493 
1494 	/* Issue a wmi command to install the thresholds */
1495 	cmd.thresh_above1_val = a_cpu_to_sle16(upper_rssi_threshold);
1496 	cmd.thresh_below1_val = a_cpu_to_sle16(lower_rssi_threshold);
1497 	cmd.weight = sq_thresh->weight;
1498 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1499 
1500 	ret = ath6kl_wmi_send_rssi_threshold_params(wmi, &cmd);
1501 	if (ret) {
1502 		ath6kl_err("unable to configure rssi thresholds\n");
1503 		return -EIO;
1504 	}
1505 
1506 	return 0;
1507 }
1508 
1509 static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len,
1510 				   struct ath6kl_vif *vif)
1511 {
1512 	struct wmi_cac_event *reply;
1513 	struct ieee80211_tspec_ie *ts;
1514 	u16 active_tsids, tsinfo;
1515 	u8 tsid, index;
1516 	u8 ts_id;
1517 
1518 	if (len < sizeof(struct wmi_cac_event))
1519 		return -EINVAL;
1520 
1521 	reply = (struct wmi_cac_event *) datap;
1522 
1523 	if ((reply->cac_indication == CAC_INDICATION_ADMISSION_RESP) &&
1524 	    (reply->status_code != IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED)) {
1525 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1526 		tsinfo = le16_to_cpu(ts->tsinfo);
1527 		tsid = (tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1528 			IEEE80211_WMM_IE_TSPEC_TID_MASK;
1529 
1530 		ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1531 					      reply->ac, tsid);
1532 	} else if (reply->cac_indication == CAC_INDICATION_NO_RESP) {
1533 		/*
1534 		 * Following assumes that there is only one outstanding
1535 		 * ADDTS request when this event is received
1536 		 */
1537 		spin_lock_bh(&wmi->lock);
1538 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1539 		spin_unlock_bh(&wmi->lock);
1540 
1541 		for (index = 0; index < sizeof(active_tsids) * 8; index++) {
1542 			if ((active_tsids >> index) & 1)
1543 				break;
1544 		}
1545 		if (index < (sizeof(active_tsids) * 8))
1546 			ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1547 						      reply->ac, index);
1548 	}
1549 
1550 	/*
1551 	 * Clear active tsids and Add missing handling
1552 	 * for delete qos stream from AP
1553 	 */
1554 	else if (reply->cac_indication == CAC_INDICATION_DELETE) {
1555 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1556 		tsinfo = le16_to_cpu(ts->tsinfo);
1557 		ts_id = ((tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1558 			 IEEE80211_WMM_IE_TSPEC_TID_MASK);
1559 
1560 		spin_lock_bh(&wmi->lock);
1561 		wmi->stream_exist_for_ac[reply->ac] &= ~(1 << ts_id);
1562 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1563 		spin_unlock_bh(&wmi->lock);
1564 
1565 		/* Indicate stream inactivity to driver layer only if all tsids
1566 		 * within this AC are deleted.
1567 		 */
1568 		if (!active_tsids) {
1569 			ath6kl_indicate_tx_activity(wmi->parent_dev, reply->ac,
1570 						    false);
1571 			wmi->fat_pipe_exist &= ~(1 << reply->ac);
1572 		}
1573 	}
1574 
1575 	return 0;
1576 }
1577 
1578 static int ath6kl_wmi_txe_notify_event_rx(struct wmi *wmi, u8 *datap, int len,
1579 					  struct ath6kl_vif *vif)
1580 {
1581 	struct wmi_txe_notify_event *ev;
1582 	u32 rate, pkts;
1583 
1584 	if (len < sizeof(*ev))
1585 		return -EINVAL;
1586 
1587 	if (vif->nw_type != INFRA_NETWORK ||
1588 	    !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY,
1589 		      vif->ar->fw_capabilities))
1590 		return -EOPNOTSUPP;
1591 
1592 	if (vif->sme_state != SME_CONNECTED)
1593 		return -ENOTCONN;
1594 
1595 	ev = (struct wmi_txe_notify_event *) datap;
1596 	rate = le32_to_cpu(ev->rate);
1597 	pkts = le32_to_cpu(ev->pkts);
1598 
1599 	ath6kl_dbg(ATH6KL_DBG_WMI, "TXE notify event: peer %pM rate %d% pkts %d intvl %ds\n",
1600 		   vif->bssid, rate, pkts, vif->txe_intvl);
1601 
1602 	cfg80211_cqm_txe_notify(vif->ndev, vif->bssid, pkts,
1603 				rate, vif->txe_intvl, GFP_KERNEL);
1604 
1605 	return 0;
1606 }
1607 
1608 int ath6kl_wmi_set_txe_notify(struct wmi *wmi, u8 idx,
1609 			      u32 rate, u32 pkts, u32 intvl)
1610 {
1611 	struct sk_buff *skb;
1612 	struct wmi_txe_notify_cmd *cmd;
1613 
1614 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1615 	if (!skb)
1616 		return -ENOMEM;
1617 
1618 	cmd = (struct wmi_txe_notify_cmd *) skb->data;
1619 	cmd->rate = cpu_to_le32(rate);
1620 	cmd->pkts = cpu_to_le32(pkts);
1621 	cmd->intvl = cpu_to_le32(intvl);
1622 
1623 	return ath6kl_wmi_cmd_send(wmi, idx, skb, WMI_SET_TXE_NOTIFY_CMDID,
1624 				   NO_SYNC_WMIFLAG);
1625 }
1626 
1627 int ath6kl_wmi_set_rssi_filter_cmd(struct wmi *wmi, u8 if_idx, s8 rssi)
1628 {
1629 	struct sk_buff *skb;
1630 	struct wmi_set_rssi_filter_cmd *cmd;
1631 	int ret;
1632 
1633 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1634 	if (!skb)
1635 		return -ENOMEM;
1636 
1637 	cmd = (struct wmi_set_rssi_filter_cmd *) skb->data;
1638 	cmd->rssi = rssi;
1639 
1640 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_RSSI_FILTER_CMDID,
1641 				  NO_SYNC_WMIFLAG);
1642 	return ret;
1643 }
1644 
1645 static int ath6kl_wmi_send_snr_threshold_params(struct wmi *wmi,
1646 			struct wmi_snr_threshold_params_cmd *snr_cmd)
1647 {
1648 	struct sk_buff *skb;
1649 	struct wmi_snr_threshold_params_cmd *cmd;
1650 
1651 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1652 	if (!skb)
1653 		return -ENOMEM;
1654 
1655 	cmd = (struct wmi_snr_threshold_params_cmd *) skb->data;
1656 	memcpy(cmd, snr_cmd, sizeof(struct wmi_snr_threshold_params_cmd));
1657 
1658 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SNR_THRESHOLD_PARAMS_CMDID,
1659 				   NO_SYNC_WMIFLAG);
1660 }
1661 
1662 static int ath6kl_wmi_snr_threshold_event_rx(struct wmi *wmi, u8 *datap,
1663 					     int len)
1664 {
1665 	struct wmi_snr_threshold_event *reply;
1666 	struct sq_threshold_params *sq_thresh;
1667 	struct wmi_snr_threshold_params_cmd cmd;
1668 	enum wmi_snr_threshold_val new_threshold;
1669 	u8 upper_snr_threshold, lower_snr_threshold;
1670 	s16 snr;
1671 	int ret;
1672 
1673 	if (len < sizeof(struct wmi_snr_threshold_event))
1674 		return -EINVAL;
1675 
1676 	reply = (struct wmi_snr_threshold_event *) datap;
1677 
1678 	new_threshold = (enum wmi_snr_threshold_val) reply->range;
1679 	snr = reply->snr;
1680 
1681 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_SNR];
1682 
1683 	/*
1684 	 * Identify the threshold breached and communicate that to the app.
1685 	 * After that install a new set of thresholds based on the signal
1686 	 * quality reported by the target.
1687 	 */
1688 	if (new_threshold) {
1689 		/* Upper threshold breached */
1690 		if (snr < sq_thresh->upper_threshold[0]) {
1691 			ath6kl_dbg(ATH6KL_DBG_WMI,
1692 				   "spurious upper snr threshold event: %d\n",
1693 				   snr);
1694 		} else if ((snr < sq_thresh->upper_threshold[1]) &&
1695 			   (snr >= sq_thresh->upper_threshold[0])) {
1696 			new_threshold = WMI_SNR_THRESHOLD1_ABOVE;
1697 		} else if ((snr < sq_thresh->upper_threshold[2]) &&
1698 			   (snr >= sq_thresh->upper_threshold[1])) {
1699 			new_threshold = WMI_SNR_THRESHOLD2_ABOVE;
1700 		} else if ((snr < sq_thresh->upper_threshold[3]) &&
1701 			   (snr >= sq_thresh->upper_threshold[2])) {
1702 			new_threshold = WMI_SNR_THRESHOLD3_ABOVE;
1703 		} else if (snr >= sq_thresh->upper_threshold[3]) {
1704 			new_threshold = WMI_SNR_THRESHOLD4_ABOVE;
1705 		}
1706 	} else {
1707 		/* Lower threshold breached */
1708 		if (snr > sq_thresh->lower_threshold[0]) {
1709 			ath6kl_dbg(ATH6KL_DBG_WMI,
1710 				   "spurious lower snr threshold event: %d\n",
1711 				   sq_thresh->lower_threshold[0]);
1712 		} else if ((snr > sq_thresh->lower_threshold[1]) &&
1713 			   (snr <= sq_thresh->lower_threshold[0])) {
1714 			new_threshold = WMI_SNR_THRESHOLD4_BELOW;
1715 		} else if ((snr > sq_thresh->lower_threshold[2]) &&
1716 			   (snr <= sq_thresh->lower_threshold[1])) {
1717 			new_threshold = WMI_SNR_THRESHOLD3_BELOW;
1718 		} else if ((snr > sq_thresh->lower_threshold[3]) &&
1719 			   (snr <= sq_thresh->lower_threshold[2])) {
1720 			new_threshold = WMI_SNR_THRESHOLD2_BELOW;
1721 		} else if (snr <= sq_thresh->lower_threshold[3]) {
1722 			new_threshold = WMI_SNR_THRESHOLD1_BELOW;
1723 		}
1724 	}
1725 
1726 	/* Calculate and install the next set of thresholds */
1727 	lower_snr_threshold = ath6kl_wmi_get_lower_threshold(snr, sq_thresh,
1728 				       sq_thresh->lower_threshold_valid_count);
1729 	upper_snr_threshold = ath6kl_wmi_get_upper_threshold(snr, sq_thresh,
1730 				       sq_thresh->upper_threshold_valid_count);
1731 
1732 	/* Issue a wmi command to install the thresholds */
1733 	cmd.thresh_above1_val = upper_snr_threshold;
1734 	cmd.thresh_below1_val = lower_snr_threshold;
1735 	cmd.weight = sq_thresh->weight;
1736 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1737 
1738 	ath6kl_dbg(ATH6KL_DBG_WMI,
1739 		   "snr: %d, threshold: %d, lower: %d, upper: %d\n",
1740 		   snr, new_threshold,
1741 		   lower_snr_threshold, upper_snr_threshold);
1742 
1743 	ret = ath6kl_wmi_send_snr_threshold_params(wmi, &cmd);
1744 	if (ret) {
1745 		ath6kl_err("unable to configure snr threshold\n");
1746 		return -EIO;
1747 	}
1748 
1749 	return 0;
1750 }
1751 
1752 static int ath6kl_wmi_aplist_event_rx(struct wmi *wmi, u8 *datap, int len)
1753 {
1754 	u16 ap_info_entry_size;
1755 	struct wmi_aplist_event *ev = (struct wmi_aplist_event *) datap;
1756 	struct wmi_ap_info_v1 *ap_info_v1;
1757 	u8 index;
1758 
1759 	if (len < sizeof(struct wmi_aplist_event) ||
1760 	    ev->ap_list_ver != APLIST_VER1)
1761 		return -EINVAL;
1762 
1763 	ap_info_entry_size = sizeof(struct wmi_ap_info_v1);
1764 	ap_info_v1 = (struct wmi_ap_info_v1 *) ev->ap_list;
1765 
1766 	ath6kl_dbg(ATH6KL_DBG_WMI,
1767 		   "number of APs in aplist event: %d\n", ev->num_ap);
1768 
1769 	if (len < (int) (sizeof(struct wmi_aplist_event) +
1770 			 (ev->num_ap - 1) * ap_info_entry_size))
1771 		return -EINVAL;
1772 
1773 	/* AP list version 1 contents */
1774 	for (index = 0; index < ev->num_ap; index++) {
1775 		ath6kl_dbg(ATH6KL_DBG_WMI, "AP#%d BSSID %pM Channel %d\n",
1776 			   index, ap_info_v1->bssid, ap_info_v1->channel);
1777 		ap_info_v1++;
1778 	}
1779 
1780 	return 0;
1781 }
1782 
1783 int ath6kl_wmi_cmd_send(struct wmi *wmi, u8 if_idx, struct sk_buff *skb,
1784 			enum wmi_cmd_id cmd_id, enum wmi_sync_flag sync_flag)
1785 {
1786 	struct wmi_cmd_hdr *cmd_hdr;
1787 	enum htc_endpoint_id ep_id = wmi->ep_id;
1788 	int ret;
1789 	u16 info1;
1790 
1791 	if (WARN_ON(skb == NULL ||
1792 		    (if_idx > (wmi->parent_dev->vif_max - 1)))) {
1793 		dev_kfree_skb(skb);
1794 		return -EINVAL;
1795 	}
1796 
1797 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi tx id %d len %d flag %d\n",
1798 		   cmd_id, skb->len, sync_flag);
1799 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi tx ",
1800 			skb->data, skb->len);
1801 
1802 	if (sync_flag >= END_WMIFLAG) {
1803 		dev_kfree_skb(skb);
1804 		return -EINVAL;
1805 	}
1806 
1807 	if ((sync_flag == SYNC_BEFORE_WMIFLAG) ||
1808 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1809 		/*
1810 		 * Make sure all data currently queued is transmitted before
1811 		 * the cmd execution.  Establish a new sync point.
1812 		 */
1813 		ath6kl_wmi_sync_point(wmi, if_idx);
1814 	}
1815 
1816 	skb_push(skb, sizeof(struct wmi_cmd_hdr));
1817 
1818 	cmd_hdr = (struct wmi_cmd_hdr *) skb->data;
1819 	cmd_hdr->cmd_id = cpu_to_le16(cmd_id);
1820 	info1 = if_idx & WMI_CMD_HDR_IF_ID_MASK;
1821 	cmd_hdr->info1 = cpu_to_le16(info1);
1822 
1823 	/* Only for OPT_TX_CMD, use BE endpoint. */
1824 	if (cmd_id == WMI_OPT_TX_FRAME_CMDID) {
1825 		ret = ath6kl_wmi_data_hdr_add(wmi, skb, OPT_MSGTYPE,
1826 					      false, false, 0, NULL, if_idx);
1827 		if (ret) {
1828 			dev_kfree_skb(skb);
1829 			return ret;
1830 		}
1831 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev, WMM_AC_BE);
1832 	}
1833 
1834 	ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
1835 
1836 	if ((sync_flag == SYNC_AFTER_WMIFLAG) ||
1837 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1838 		/*
1839 		 * Make sure all new data queued waits for the command to
1840 		 * execute. Establish a new sync point.
1841 		 */
1842 		ath6kl_wmi_sync_point(wmi, if_idx);
1843 	}
1844 
1845 	return 0;
1846 }
1847 
1848 int ath6kl_wmi_connect_cmd(struct wmi *wmi, u8 if_idx,
1849 			   enum network_type nw_type,
1850 			   enum dot11_auth_mode dot11_auth_mode,
1851 			   enum auth_mode auth_mode,
1852 			   enum crypto_type pairwise_crypto,
1853 			   u8 pairwise_crypto_len,
1854 			   enum crypto_type group_crypto,
1855 			   u8 group_crypto_len, int ssid_len, u8 *ssid,
1856 			   u8 *bssid, u16 channel, u32 ctrl_flags,
1857 			   u8 nw_subtype)
1858 {
1859 	struct sk_buff *skb;
1860 	struct wmi_connect_cmd *cc;
1861 	int ret;
1862 
1863 	ath6kl_dbg(ATH6KL_DBG_WMI,
1864 		   "wmi connect bssid %pM freq %d flags 0x%x ssid_len %d "
1865 		   "type %d dot11_auth %d auth %d pairwise %d group %d\n",
1866 		   bssid, channel, ctrl_flags, ssid_len, nw_type,
1867 		   dot11_auth_mode, auth_mode, pairwise_crypto, group_crypto);
1868 	ath6kl_dbg_dump(ATH6KL_DBG_WMI, NULL, "ssid ", ssid, ssid_len);
1869 
1870 	wmi->traffic_class = 100;
1871 
1872 	if ((pairwise_crypto == NONE_CRYPT) && (group_crypto != NONE_CRYPT))
1873 		return -EINVAL;
1874 
1875 	if ((pairwise_crypto != NONE_CRYPT) && (group_crypto == NONE_CRYPT))
1876 		return -EINVAL;
1877 
1878 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_connect_cmd));
1879 	if (!skb)
1880 		return -ENOMEM;
1881 
1882 	cc = (struct wmi_connect_cmd *) skb->data;
1883 
1884 	if (ssid_len)
1885 		memcpy(cc->ssid, ssid, ssid_len);
1886 
1887 	cc->ssid_len = ssid_len;
1888 	cc->nw_type = nw_type;
1889 	cc->dot11_auth_mode = dot11_auth_mode;
1890 	cc->auth_mode = auth_mode;
1891 	cc->prwise_crypto_type = pairwise_crypto;
1892 	cc->prwise_crypto_len = pairwise_crypto_len;
1893 	cc->grp_crypto_type = group_crypto;
1894 	cc->grp_crypto_len = group_crypto_len;
1895 	cc->ch = cpu_to_le16(channel);
1896 	cc->ctrl_flags = cpu_to_le32(ctrl_flags);
1897 	cc->nw_subtype = nw_subtype;
1898 
1899 	if (bssid != NULL)
1900 		memcpy(cc->bssid, bssid, ETH_ALEN);
1901 
1902 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CONNECT_CMDID,
1903 				  NO_SYNC_WMIFLAG);
1904 
1905 	return ret;
1906 }
1907 
1908 int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 if_idx, u8 *bssid,
1909 			     u16 channel)
1910 {
1911 	struct sk_buff *skb;
1912 	struct wmi_reconnect_cmd *cc;
1913 	int ret;
1914 
1915 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi reconnect bssid %pM freq %d\n",
1916 		   bssid, channel);
1917 
1918 	wmi->traffic_class = 100;
1919 
1920 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_reconnect_cmd));
1921 	if (!skb)
1922 		return -ENOMEM;
1923 
1924 	cc = (struct wmi_reconnect_cmd *) skb->data;
1925 	cc->channel = cpu_to_le16(channel);
1926 
1927 	if (bssid != NULL)
1928 		memcpy(cc->bssid, bssid, ETH_ALEN);
1929 
1930 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RECONNECT_CMDID,
1931 				  NO_SYNC_WMIFLAG);
1932 
1933 	return ret;
1934 }
1935 
1936 int ath6kl_wmi_disconnect_cmd(struct wmi *wmi, u8 if_idx)
1937 {
1938 	int ret;
1939 
1940 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi disconnect\n");
1941 
1942 	wmi->traffic_class = 100;
1943 
1944 	/* Disconnect command does not need to do a SYNC before. */
1945 	ret = ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_DISCONNECT_CMDID);
1946 
1947 	return ret;
1948 }
1949 
1950 /* ath6kl_wmi_start_scan_cmd is to be deprecated. Use
1951  * ath6kl_wmi_begin_scan_cmd instead. The new function supports P2P
1952  * mgmt operations using station interface.
1953  */
1954 static int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx,
1955 				    enum wmi_scan_type scan_type,
1956 				    u32 force_fgscan, u32 is_legacy,
1957 				    u32 home_dwell_time,
1958 				    u32 force_scan_interval,
1959 				    s8 num_chan, u16 *ch_list)
1960 {
1961 	struct sk_buff *skb;
1962 	struct wmi_start_scan_cmd *sc;
1963 	s8 size;
1964 	int i, ret;
1965 
1966 	size = sizeof(struct wmi_start_scan_cmd);
1967 
1968 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
1969 		return -EINVAL;
1970 
1971 	if (num_chan > WMI_MAX_CHANNELS)
1972 		return -EINVAL;
1973 
1974 	if (num_chan)
1975 		size += sizeof(u16) * (num_chan - 1);
1976 
1977 	skb = ath6kl_wmi_get_new_buf(size);
1978 	if (!skb)
1979 		return -ENOMEM;
1980 
1981 	sc = (struct wmi_start_scan_cmd *) skb->data;
1982 	sc->scan_type = scan_type;
1983 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
1984 	sc->is_legacy = cpu_to_le32(is_legacy);
1985 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
1986 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
1987 	sc->num_ch = num_chan;
1988 
1989 	for (i = 0; i < num_chan; i++)
1990 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
1991 
1992 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_START_SCAN_CMDID,
1993 				  NO_SYNC_WMIFLAG);
1994 
1995 	return ret;
1996 }
1997 
1998 /*
1999  * beginscan supports (compared to old startscan) P2P mgmt operations using
2000  * station interface, send additional information like supported rates to
2001  * advertise and xmit rates for probe requests
2002  */
2003 int ath6kl_wmi_beginscan_cmd(struct wmi *wmi, u8 if_idx,
2004 			     enum wmi_scan_type scan_type,
2005 			     u32 force_fgscan, u32 is_legacy,
2006 			     u32 home_dwell_time, u32 force_scan_interval,
2007 			     s8 num_chan, u16 *ch_list, u32 no_cck, u32 *rates)
2008 {
2009 	struct ieee80211_supported_band *sband;
2010 	struct sk_buff *skb;
2011 	struct wmi_begin_scan_cmd *sc;
2012 	s8 size, *supp_rates;
2013 	int i, band, ret;
2014 	struct ath6kl *ar = wmi->parent_dev;
2015 	int num_rates;
2016 	u32 ratemask;
2017 
2018 	if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
2019 		      ar->fw_capabilities)) {
2020 		return ath6kl_wmi_startscan_cmd(wmi, if_idx,
2021 						scan_type, force_fgscan,
2022 						is_legacy, home_dwell_time,
2023 						force_scan_interval,
2024 						num_chan, ch_list);
2025 	}
2026 
2027 	size = sizeof(struct wmi_begin_scan_cmd);
2028 
2029 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
2030 		return -EINVAL;
2031 
2032 	if (num_chan > WMI_MAX_CHANNELS)
2033 		return -EINVAL;
2034 
2035 	if (num_chan)
2036 		size += sizeof(u16) * (num_chan - 1);
2037 
2038 	skb = ath6kl_wmi_get_new_buf(size);
2039 	if (!skb)
2040 		return -ENOMEM;
2041 
2042 	sc = (struct wmi_begin_scan_cmd *) skb->data;
2043 	sc->scan_type = scan_type;
2044 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
2045 	sc->is_legacy = cpu_to_le32(is_legacy);
2046 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
2047 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
2048 	sc->no_cck = cpu_to_le32(no_cck);
2049 	sc->num_ch = num_chan;
2050 
2051 	for (band = 0; band < NUM_NL80211_BANDS; band++) {
2052 		sband = ar->wiphy->bands[band];
2053 
2054 		if (!sband)
2055 			continue;
2056 
2057 		if (WARN_ON(band >= ATH6KL_NUM_BANDS))
2058 			break;
2059 
2060 		ratemask = rates[band];
2061 		supp_rates = sc->supp_rates[band].rates;
2062 		num_rates = 0;
2063 
2064 		for (i = 0; i < sband->n_bitrates; i++) {
2065 			if ((BIT(i) & ratemask) == 0)
2066 				continue; /* skip rate */
2067 			supp_rates[num_rates++] =
2068 			    (u8) (sband->bitrates[i].bitrate / 5);
2069 		}
2070 		sc->supp_rates[band].nrates = num_rates;
2071 	}
2072 
2073 	for (i = 0; i < num_chan; i++)
2074 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
2075 
2076 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_BEGIN_SCAN_CMDID,
2077 				  NO_SYNC_WMIFLAG);
2078 
2079 	return ret;
2080 }
2081 
2082 int ath6kl_wmi_enable_sched_scan_cmd(struct wmi *wmi, u8 if_idx, bool enable)
2083 {
2084 	struct sk_buff *skb;
2085 	struct wmi_enable_sched_scan_cmd *sc;
2086 	int ret;
2087 
2088 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2089 	if (!skb)
2090 		return -ENOMEM;
2091 
2092 	ath6kl_dbg(ATH6KL_DBG_WMI, "%s scheduled scan on vif %d\n",
2093 		   enable ? "enabling" : "disabling", if_idx);
2094 	sc = (struct wmi_enable_sched_scan_cmd *) skb->data;
2095 	sc->enable = enable ? 1 : 0;
2096 
2097 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2098 				  WMI_ENABLE_SCHED_SCAN_CMDID,
2099 				  NO_SYNC_WMIFLAG);
2100 	return ret;
2101 }
2102 
2103 int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u8 if_idx,
2104 			      u16 fg_start_sec,
2105 			      u16 fg_end_sec, u16 bg_sec,
2106 			      u16 minact_chdw_msec, u16 maxact_chdw_msec,
2107 			      u16 pas_chdw_msec, u8 short_scan_ratio,
2108 			      u8 scan_ctrl_flag, u32 max_dfsch_act_time,
2109 			      u16 maxact_scan_per_ssid)
2110 {
2111 	struct sk_buff *skb;
2112 	struct wmi_scan_params_cmd *sc;
2113 	int ret;
2114 
2115 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2116 	if (!skb)
2117 		return -ENOMEM;
2118 
2119 	sc = (struct wmi_scan_params_cmd *) skb->data;
2120 	sc->fg_start_period = cpu_to_le16(fg_start_sec);
2121 	sc->fg_end_period = cpu_to_le16(fg_end_sec);
2122 	sc->bg_period = cpu_to_le16(bg_sec);
2123 	sc->minact_chdwell_time = cpu_to_le16(minact_chdw_msec);
2124 	sc->maxact_chdwell_time = cpu_to_le16(maxact_chdw_msec);
2125 	sc->pas_chdwell_time = cpu_to_le16(pas_chdw_msec);
2126 	sc->short_scan_ratio = short_scan_ratio;
2127 	sc->scan_ctrl_flags = scan_ctrl_flag;
2128 	sc->max_dfsch_act_time = cpu_to_le32(max_dfsch_act_time);
2129 	sc->maxact_scan_per_ssid = cpu_to_le16(maxact_scan_per_ssid);
2130 
2131 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_SCAN_PARAMS_CMDID,
2132 				  NO_SYNC_WMIFLAG);
2133 	return ret;
2134 }
2135 
2136 int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 if_idx, u8 filter, u32 ie_mask)
2137 {
2138 	struct sk_buff *skb;
2139 	struct wmi_bss_filter_cmd *cmd;
2140 	int ret;
2141 
2142 	if (filter >= LAST_BSS_FILTER)
2143 		return -EINVAL;
2144 
2145 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2146 	if (!skb)
2147 		return -ENOMEM;
2148 
2149 	cmd = (struct wmi_bss_filter_cmd *) skb->data;
2150 	cmd->bss_filter = filter;
2151 	cmd->ie_mask = cpu_to_le32(ie_mask);
2152 
2153 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BSS_FILTER_CMDID,
2154 				  NO_SYNC_WMIFLAG);
2155 	return ret;
2156 }
2157 
2158 int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 if_idx, u8 index, u8 flag,
2159 			      u8 ssid_len, u8 *ssid)
2160 {
2161 	struct sk_buff *skb;
2162 	struct wmi_probed_ssid_cmd *cmd;
2163 	int ret;
2164 
2165 	if (index >= MAX_PROBED_SSIDS)
2166 		return -EINVAL;
2167 
2168 	if (ssid_len > sizeof(cmd->ssid))
2169 		return -EINVAL;
2170 
2171 	if ((flag & (DISABLE_SSID_FLAG | ANY_SSID_FLAG)) && (ssid_len > 0))
2172 		return -EINVAL;
2173 
2174 	if ((flag & SPECIFIC_SSID_FLAG) && !ssid_len)
2175 		return -EINVAL;
2176 
2177 	if (flag & SPECIFIC_SSID_FLAG)
2178 		wmi->is_probe_ssid = true;
2179 
2180 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2181 	if (!skb)
2182 		return -ENOMEM;
2183 
2184 	cmd = (struct wmi_probed_ssid_cmd *) skb->data;
2185 	cmd->entry_index = index;
2186 	cmd->flag = flag;
2187 	cmd->ssid_len = ssid_len;
2188 	memcpy(cmd->ssid, ssid, ssid_len);
2189 
2190 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PROBED_SSID_CMDID,
2191 				  NO_SYNC_WMIFLAG);
2192 	return ret;
2193 }
2194 
2195 int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u8 if_idx,
2196 				  u16 listen_interval,
2197 				  u16 listen_beacons)
2198 {
2199 	struct sk_buff *skb;
2200 	struct wmi_listen_int_cmd *cmd;
2201 	int ret;
2202 
2203 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2204 	if (!skb)
2205 		return -ENOMEM;
2206 
2207 	cmd = (struct wmi_listen_int_cmd *) skb->data;
2208 	cmd->listen_intvl = cpu_to_le16(listen_interval);
2209 	cmd->num_beacons = cpu_to_le16(listen_beacons);
2210 
2211 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LISTEN_INT_CMDID,
2212 				  NO_SYNC_WMIFLAG);
2213 	return ret;
2214 }
2215 
2216 int ath6kl_wmi_bmisstime_cmd(struct wmi *wmi, u8 if_idx,
2217 			     u16 bmiss_time, u16 num_beacons)
2218 {
2219 	struct sk_buff *skb;
2220 	struct wmi_bmiss_time_cmd *cmd;
2221 	int ret;
2222 
2223 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2224 	if (!skb)
2225 		return -ENOMEM;
2226 
2227 	cmd = (struct wmi_bmiss_time_cmd *) skb->data;
2228 	cmd->bmiss_time = cpu_to_le16(bmiss_time);
2229 	cmd->num_beacons = cpu_to_le16(num_beacons);
2230 
2231 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BMISS_TIME_CMDID,
2232 				  NO_SYNC_WMIFLAG);
2233 	return ret;
2234 }
2235 
2236 int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 if_idx, u8 pwr_mode)
2237 {
2238 	struct sk_buff *skb;
2239 	struct wmi_power_mode_cmd *cmd;
2240 	int ret;
2241 
2242 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2243 	if (!skb)
2244 		return -ENOMEM;
2245 
2246 	cmd = (struct wmi_power_mode_cmd *) skb->data;
2247 	cmd->pwr_mode = pwr_mode;
2248 	wmi->pwr_mode = pwr_mode;
2249 
2250 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_MODE_CMDID,
2251 				  NO_SYNC_WMIFLAG);
2252 	return ret;
2253 }
2254 
2255 int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u8 if_idx, u16 idle_period,
2256 			    u16 ps_poll_num, u16 dtim_policy,
2257 			    u16 tx_wakeup_policy, u16 num_tx_to_wakeup,
2258 			    u16 ps_fail_event_policy)
2259 {
2260 	struct sk_buff *skb;
2261 	struct wmi_power_params_cmd *pm;
2262 	int ret;
2263 
2264 	skb = ath6kl_wmi_get_new_buf(sizeof(*pm));
2265 	if (!skb)
2266 		return -ENOMEM;
2267 
2268 	pm = (struct wmi_power_params_cmd *)skb->data;
2269 	pm->idle_period = cpu_to_le16(idle_period);
2270 	pm->pspoll_number = cpu_to_le16(ps_poll_num);
2271 	pm->dtim_policy = cpu_to_le16(dtim_policy);
2272 	pm->tx_wakeup_policy = cpu_to_le16(tx_wakeup_policy);
2273 	pm->num_tx_to_wakeup = cpu_to_le16(num_tx_to_wakeup);
2274 	pm->ps_fail_event_policy = cpu_to_le16(ps_fail_event_policy);
2275 
2276 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_PARAMS_CMDID,
2277 				  NO_SYNC_WMIFLAG);
2278 	return ret;
2279 }
2280 
2281 int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 if_idx, u8 timeout)
2282 {
2283 	struct sk_buff *skb;
2284 	struct wmi_disc_timeout_cmd *cmd;
2285 	int ret;
2286 
2287 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2288 	if (!skb)
2289 		return -ENOMEM;
2290 
2291 	cmd = (struct wmi_disc_timeout_cmd *) skb->data;
2292 	cmd->discon_timeout = timeout;
2293 
2294 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_DISC_TIMEOUT_CMDID,
2295 				  NO_SYNC_WMIFLAG);
2296 
2297 	if (ret == 0)
2298 		ath6kl_debug_set_disconnect_timeout(wmi->parent_dev, timeout);
2299 
2300 	return ret;
2301 }
2302 
2303 int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index,
2304 			  enum crypto_type key_type,
2305 			  u8 key_usage, u8 key_len,
2306 			  u8 *key_rsc, unsigned int key_rsc_len,
2307 			  u8 *key_material,
2308 			  u8 key_op_ctrl, u8 *mac_addr,
2309 			  enum wmi_sync_flag sync_flag)
2310 {
2311 	struct sk_buff *skb;
2312 	struct wmi_add_cipher_key_cmd *cmd;
2313 	int ret;
2314 
2315 	ath6kl_dbg(ATH6KL_DBG_WMI,
2316 		   "addkey cmd: key_index=%u key_type=%d key_usage=%d key_len=%d key_op_ctrl=%d\n",
2317 		   key_index, key_type, key_usage, key_len, key_op_ctrl);
2318 
2319 	if ((key_index > WMI_MAX_KEY_INDEX) || (key_len > WMI_MAX_KEY_LEN) ||
2320 	    (key_material == NULL) || key_rsc_len > 8)
2321 		return -EINVAL;
2322 
2323 	if ((WEP_CRYPT != key_type) && (NULL == key_rsc))
2324 		return -EINVAL;
2325 
2326 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2327 	if (!skb)
2328 		return -ENOMEM;
2329 
2330 	cmd = (struct wmi_add_cipher_key_cmd *) skb->data;
2331 	cmd->key_index = key_index;
2332 	cmd->key_type = key_type;
2333 	cmd->key_usage = key_usage;
2334 	cmd->key_len = key_len;
2335 	memcpy(cmd->key, key_material, key_len);
2336 
2337 	if (key_rsc != NULL)
2338 		memcpy(cmd->key_rsc, key_rsc, key_rsc_len);
2339 
2340 	cmd->key_op_ctrl = key_op_ctrl;
2341 
2342 	if (mac_addr)
2343 		memcpy(cmd->key_mac_addr, mac_addr, ETH_ALEN);
2344 
2345 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_CIPHER_KEY_CMDID,
2346 				  sync_flag);
2347 
2348 	return ret;
2349 }
2350 
2351 int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 if_idx, const u8 *krk)
2352 {
2353 	struct sk_buff *skb;
2354 	struct wmi_add_krk_cmd *cmd;
2355 	int ret;
2356 
2357 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2358 	if (!skb)
2359 		return -ENOMEM;
2360 
2361 	cmd = (struct wmi_add_krk_cmd *) skb->data;
2362 	memcpy(cmd->krk, krk, WMI_KRK_LEN);
2363 
2364 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_KRK_CMDID,
2365 				  NO_SYNC_WMIFLAG);
2366 
2367 	return ret;
2368 }
2369 
2370 int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index)
2371 {
2372 	struct sk_buff *skb;
2373 	struct wmi_delete_cipher_key_cmd *cmd;
2374 	int ret;
2375 
2376 	if (key_index > WMI_MAX_KEY_INDEX)
2377 		return -EINVAL;
2378 
2379 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2380 	if (!skb)
2381 		return -ENOMEM;
2382 
2383 	cmd = (struct wmi_delete_cipher_key_cmd *) skb->data;
2384 	cmd->key_index = key_index;
2385 
2386 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_CIPHER_KEY_CMDID,
2387 				  NO_SYNC_WMIFLAG);
2388 
2389 	return ret;
2390 }
2391 
2392 int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, u8 if_idx, const u8 *bssid,
2393 			    const u8 *pmkid, bool set)
2394 {
2395 	struct sk_buff *skb;
2396 	struct wmi_setpmkid_cmd *cmd;
2397 	int ret;
2398 
2399 	if (bssid == NULL)
2400 		return -EINVAL;
2401 
2402 	if (set && pmkid == NULL)
2403 		return -EINVAL;
2404 
2405 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2406 	if (!skb)
2407 		return -ENOMEM;
2408 
2409 	cmd = (struct wmi_setpmkid_cmd *) skb->data;
2410 	memcpy(cmd->bssid, bssid, ETH_ALEN);
2411 	if (set) {
2412 		memcpy(cmd->pmkid, pmkid, sizeof(cmd->pmkid));
2413 		cmd->enable = PMKID_ENABLE;
2414 	} else {
2415 		memset(cmd->pmkid, 0, sizeof(cmd->pmkid));
2416 		cmd->enable = PMKID_DISABLE;
2417 	}
2418 
2419 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PMKID_CMDID,
2420 				  NO_SYNC_WMIFLAG);
2421 
2422 	return ret;
2423 }
2424 
2425 static int ath6kl_wmi_data_sync_send(struct wmi *wmi, struct sk_buff *skb,
2426 			      enum htc_endpoint_id ep_id, u8 if_idx)
2427 {
2428 	struct wmi_data_hdr *data_hdr;
2429 	int ret;
2430 
2431 	if (WARN_ON(skb == NULL || ep_id == wmi->ep_id)) {
2432 		dev_kfree_skb(skb);
2433 		return -EINVAL;
2434 	}
2435 
2436 	skb_push(skb, sizeof(struct wmi_data_hdr));
2437 
2438 	data_hdr = (struct wmi_data_hdr *) skb->data;
2439 	data_hdr->info = SYNC_MSGTYPE << WMI_DATA_HDR_MSG_TYPE_SHIFT;
2440 	data_hdr->info3 = cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
2441 
2442 	ret = ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
2443 
2444 	return ret;
2445 }
2446 
2447 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx)
2448 {
2449 	struct sk_buff *skb;
2450 	struct wmi_sync_cmd *cmd;
2451 	struct wmi_data_sync_bufs data_sync_bufs[WMM_NUM_AC];
2452 	enum htc_endpoint_id ep_id;
2453 	u8 index, num_pri_streams = 0;
2454 	int ret = 0;
2455 
2456 	memset(data_sync_bufs, 0, sizeof(data_sync_bufs));
2457 
2458 	spin_lock_bh(&wmi->lock);
2459 
2460 	for (index = 0; index < WMM_NUM_AC; index++) {
2461 		if (wmi->fat_pipe_exist & (1 << index)) {
2462 			num_pri_streams++;
2463 			data_sync_bufs[num_pri_streams - 1].traffic_class =
2464 			    index;
2465 		}
2466 	}
2467 
2468 	spin_unlock_bh(&wmi->lock);
2469 
2470 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2471 	if (!skb)
2472 		return -ENOMEM;
2473 
2474 	cmd = (struct wmi_sync_cmd *) skb->data;
2475 
2476 	/*
2477 	 * In the SYNC cmd sent on the control Ep, send a bitmap
2478 	 * of the data eps on which the Data Sync will be sent
2479 	 */
2480 	cmd->data_sync_map = wmi->fat_pipe_exist;
2481 
2482 	for (index = 0; index < num_pri_streams; index++) {
2483 		data_sync_bufs[index].skb = ath6kl_buf_alloc(0);
2484 		if (data_sync_bufs[index].skb == NULL) {
2485 			ret = -ENOMEM;
2486 			break;
2487 		}
2488 	}
2489 
2490 	/*
2491 	 * If buffer allocation for any of the dataSync fails,
2492 	 * then do not send the Synchronize cmd on the control ep
2493 	 */
2494 	if (ret)
2495 		goto free_cmd_skb;
2496 
2497 	/*
2498 	 * Send sync cmd followed by sync data messages on all
2499 	 * endpoints being used
2500 	 */
2501 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SYNCHRONIZE_CMDID,
2502 				  NO_SYNC_WMIFLAG);
2503 
2504 	if (ret)
2505 		goto free_data_skb;
2506 
2507 	for (index = 0; index < num_pri_streams; index++) {
2508 		if (WARN_ON(!data_sync_bufs[index].skb))
2509 			goto free_data_skb;
2510 
2511 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev,
2512 					       data_sync_bufs[index].
2513 					       traffic_class);
2514 		ret =
2515 		    ath6kl_wmi_data_sync_send(wmi, data_sync_bufs[index].skb,
2516 					      ep_id, if_idx);
2517 
2518 		data_sync_bufs[index].skb = NULL;
2519 
2520 		if (ret)
2521 			goto free_data_skb;
2522 	}
2523 
2524 	return 0;
2525 
2526 free_cmd_skb:
2527 	/* free up any resources left over (possibly due to an error) */
2528 	dev_kfree_skb(skb);
2529 
2530 free_data_skb:
2531 	for (index = 0; index < num_pri_streams; index++)
2532 		dev_kfree_skb((struct sk_buff *)data_sync_bufs[index].skb);
2533 
2534 	return ret;
2535 }
2536 
2537 int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, u8 if_idx,
2538 				  struct wmi_create_pstream_cmd *params)
2539 {
2540 	struct sk_buff *skb;
2541 	struct wmi_create_pstream_cmd *cmd;
2542 	u8 fatpipe_exist_for_ac = 0;
2543 	s32 min_phy = 0;
2544 	s32 nominal_phy = 0;
2545 	int ret;
2546 
2547 	if (!((params->user_pri < 8) &&
2548 	      (params->user_pri <= 0x7) &&
2549 	      (up_to_ac[params->user_pri & 0x7] == params->traffic_class) &&
2550 	      (params->traffic_direc == UPLINK_TRAFFIC ||
2551 	       params->traffic_direc == DNLINK_TRAFFIC ||
2552 	       params->traffic_direc == BIDIR_TRAFFIC) &&
2553 	      (params->traffic_type == TRAFFIC_TYPE_APERIODIC ||
2554 	       params->traffic_type == TRAFFIC_TYPE_PERIODIC) &&
2555 	      (params->voice_psc_cap == DISABLE_FOR_THIS_AC ||
2556 	       params->voice_psc_cap == ENABLE_FOR_THIS_AC ||
2557 	       params->voice_psc_cap == ENABLE_FOR_ALL_AC) &&
2558 	      (params->tsid == WMI_IMPLICIT_PSTREAM ||
2559 	       params->tsid <= WMI_MAX_THINSTREAM))) {
2560 		return -EINVAL;
2561 	}
2562 
2563 	/*
2564 	 * Check nominal PHY rate is >= minimalPHY,
2565 	 * so that DUT can allow TSRS IE
2566 	 */
2567 
2568 	/* Get the physical rate (units of bps) */
2569 	min_phy = ((le32_to_cpu(params->min_phy_rate) / 1000) / 1000);
2570 
2571 	/* Check minimal phy < nominal phy rate */
2572 	if (params->nominal_phy >= min_phy) {
2573 		/* unit of 500 kbps */
2574 		nominal_phy = (params->nominal_phy * 1000) / 500;
2575 		ath6kl_dbg(ATH6KL_DBG_WMI,
2576 			   "TSRS IE enabled::MinPhy %x->NominalPhy ===> %x\n",
2577 			   min_phy, nominal_phy);
2578 
2579 		params->nominal_phy = nominal_phy;
2580 	} else {
2581 		params->nominal_phy = 0;
2582 	}
2583 
2584 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2585 	if (!skb)
2586 		return -ENOMEM;
2587 
2588 	ath6kl_dbg(ATH6KL_DBG_WMI,
2589 		   "sending create_pstream_cmd: ac=%d  tsid:%d\n",
2590 		   params->traffic_class, params->tsid);
2591 
2592 	cmd = (struct wmi_create_pstream_cmd *) skb->data;
2593 	memcpy(cmd, params, sizeof(*cmd));
2594 
2595 	/* This is an implicitly created Fat pipe */
2596 	if ((u32) params->tsid == (u32) WMI_IMPLICIT_PSTREAM) {
2597 		spin_lock_bh(&wmi->lock);
2598 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2599 					(1 << params->traffic_class));
2600 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2601 		spin_unlock_bh(&wmi->lock);
2602 	} else {
2603 		/* explicitly created thin stream within a fat pipe */
2604 		spin_lock_bh(&wmi->lock);
2605 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2606 					(1 << params->traffic_class));
2607 		wmi->stream_exist_for_ac[params->traffic_class] |=
2608 		    (1 << params->tsid);
2609 		/*
2610 		 * If a thinstream becomes active, the fat pipe automatically
2611 		 * becomes active
2612 		 */
2613 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2614 		spin_unlock_bh(&wmi->lock);
2615 	}
2616 
2617 	/*
2618 	 * Indicate activty change to driver layer only if this is the
2619 	 * first TSID to get created in this AC explicitly or an implicit
2620 	 * fat pipe is getting created.
2621 	 */
2622 	if (!fatpipe_exist_for_ac)
2623 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2624 					    params->traffic_class, true);
2625 
2626 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CREATE_PSTREAM_CMDID,
2627 				  NO_SYNC_WMIFLAG);
2628 	return ret;
2629 }
2630 
2631 int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 if_idx, u8 traffic_class,
2632 				  u8 tsid)
2633 {
2634 	struct sk_buff *skb;
2635 	struct wmi_delete_pstream_cmd *cmd;
2636 	u16 active_tsids = 0;
2637 	int ret;
2638 
2639 	if (traffic_class > 3) {
2640 		ath6kl_err("invalid traffic class: %d\n", traffic_class);
2641 		return -EINVAL;
2642 	}
2643 
2644 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2645 	if (!skb)
2646 		return -ENOMEM;
2647 
2648 	cmd = (struct wmi_delete_pstream_cmd *) skb->data;
2649 	cmd->traffic_class = traffic_class;
2650 	cmd->tsid = tsid;
2651 
2652 	spin_lock_bh(&wmi->lock);
2653 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2654 	spin_unlock_bh(&wmi->lock);
2655 
2656 	if (!(active_tsids & (1 << tsid))) {
2657 		dev_kfree_skb(skb);
2658 		ath6kl_dbg(ATH6KL_DBG_WMI,
2659 			   "TSID %d doesn't exist for traffic class: %d\n",
2660 			   tsid, traffic_class);
2661 		return -ENODATA;
2662 	}
2663 
2664 	ath6kl_dbg(ATH6KL_DBG_WMI,
2665 		   "sending delete_pstream_cmd: traffic class: %d tsid=%d\n",
2666 		   traffic_class, tsid);
2667 
2668 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_PSTREAM_CMDID,
2669 				  SYNC_BEFORE_WMIFLAG);
2670 
2671 	spin_lock_bh(&wmi->lock);
2672 	wmi->stream_exist_for_ac[traffic_class] &= ~(1 << tsid);
2673 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2674 	spin_unlock_bh(&wmi->lock);
2675 
2676 	/*
2677 	 * Indicate stream inactivity to driver layer only if all tsids
2678 	 * within this AC are deleted.
2679 	 */
2680 	if (!active_tsids) {
2681 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2682 					    traffic_class, false);
2683 		wmi->fat_pipe_exist &= ~(1 << traffic_class);
2684 	}
2685 
2686 	return ret;
2687 }
2688 
2689 int ath6kl_wmi_set_ip_cmd(struct wmi *wmi, u8 if_idx,
2690 			  __be32 ips0, __be32 ips1)
2691 {
2692 	struct sk_buff *skb;
2693 	struct wmi_set_ip_cmd *cmd;
2694 	int ret;
2695 
2696 	/* Multicast address are not valid */
2697 	if (ipv4_is_multicast(ips0) ||
2698 	    ipv4_is_multicast(ips1))
2699 		return -EINVAL;
2700 
2701 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_ip_cmd));
2702 	if (!skb)
2703 		return -ENOMEM;
2704 
2705 	cmd = (struct wmi_set_ip_cmd *) skb->data;
2706 	cmd->ips[0] = ips0;
2707 	cmd->ips[1] = ips1;
2708 
2709 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IP_CMDID,
2710 				  NO_SYNC_WMIFLAG);
2711 	return ret;
2712 }
2713 
2714 static void ath6kl_wmi_relinquish_implicit_pstream_credits(struct wmi *wmi)
2715 {
2716 	u16 active_tsids;
2717 	u8 stream_exist;
2718 	int i;
2719 
2720 	/*
2721 	 * Relinquish credits from all implicitly created pstreams
2722 	 * since when we go to sleep. If user created explicit
2723 	 * thinstreams exists with in a fatpipe leave them intact
2724 	 * for the user to delete.
2725 	 */
2726 	spin_lock_bh(&wmi->lock);
2727 	stream_exist = wmi->fat_pipe_exist;
2728 	spin_unlock_bh(&wmi->lock);
2729 
2730 	for (i = 0; i < WMM_NUM_AC; i++) {
2731 		if (stream_exist & (1 << i)) {
2732 			/*
2733 			 * FIXME: Is this lock & unlock inside
2734 			 * for loop correct? may need rework.
2735 			 */
2736 			spin_lock_bh(&wmi->lock);
2737 			active_tsids = wmi->stream_exist_for_ac[i];
2738 			spin_unlock_bh(&wmi->lock);
2739 
2740 			/*
2741 			 * If there are no user created thin streams
2742 			 * delete the fatpipe
2743 			 */
2744 			if (!active_tsids) {
2745 				stream_exist &= ~(1 << i);
2746 				/*
2747 				 * Indicate inactivity to driver layer for
2748 				 * this fatpipe (pstream)
2749 				 */
2750 				ath6kl_indicate_tx_activity(wmi->parent_dev,
2751 							    i, false);
2752 			}
2753 		}
2754 	}
2755 
2756 	/* FIXME: Can we do this assignment without locking ? */
2757 	spin_lock_bh(&wmi->lock);
2758 	wmi->fat_pipe_exist = stream_exist;
2759 	spin_unlock_bh(&wmi->lock);
2760 }
2761 
2762 static int ath6kl_set_bitrate_mask64(struct wmi *wmi, u8 if_idx,
2763 				     const struct cfg80211_bitrate_mask *mask)
2764 {
2765 	struct sk_buff *skb;
2766 	int ret, mode, band;
2767 	u64 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2768 	struct wmi_set_tx_select_rates64_cmd *cmd;
2769 
2770 	memset(&ratemask, 0, sizeof(ratemask));
2771 
2772 	/* only check 2.4 and 5 GHz bands, skip the rest */
2773 	for (band = 0; band <= NL80211_BAND_5GHZ; band++) {
2774 		/* copy legacy rate mask */
2775 		ratemask[band] = mask->control[band].legacy;
2776 		if (band == NL80211_BAND_5GHZ)
2777 			ratemask[band] =
2778 				mask->control[band].legacy << 4;
2779 
2780 		/* copy mcs rate mask */
2781 		mcsrate = mask->control[band].ht_mcs[1];
2782 		mcsrate <<= 8;
2783 		mcsrate |= mask->control[band].ht_mcs[0];
2784 		ratemask[band] |= mcsrate << 12;
2785 		ratemask[band] |= mcsrate << 28;
2786 	}
2787 
2788 	ath6kl_dbg(ATH6KL_DBG_WMI,
2789 		   "Ratemask 64 bit: 2.4:%llx 5:%llx\n",
2790 		   ratemask[0], ratemask[1]);
2791 
2792 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2793 	if (!skb)
2794 		return -ENOMEM;
2795 
2796 	cmd = (struct wmi_set_tx_select_rates64_cmd *) skb->data;
2797 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2798 		/* A mode operate in 5GHZ band */
2799 		if (mode == WMI_RATES_MODE_11A ||
2800 		    mode == WMI_RATES_MODE_11A_HT20 ||
2801 		    mode == WMI_RATES_MODE_11A_HT40)
2802 			band = NL80211_BAND_5GHZ;
2803 		else
2804 			band = NL80211_BAND_2GHZ;
2805 		cmd->ratemask[mode] = cpu_to_le64(ratemask[band]);
2806 	}
2807 
2808 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2809 				  WMI_SET_TX_SELECT_RATES_CMDID,
2810 				  NO_SYNC_WMIFLAG);
2811 	return ret;
2812 }
2813 
2814 static int ath6kl_set_bitrate_mask32(struct wmi *wmi, u8 if_idx,
2815 				     const struct cfg80211_bitrate_mask *mask)
2816 {
2817 	struct sk_buff *skb;
2818 	int ret, mode, band;
2819 	u32 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2820 	struct wmi_set_tx_select_rates32_cmd *cmd;
2821 
2822 	memset(&ratemask, 0, sizeof(ratemask));
2823 
2824 	/* only check 2.4 and 5 GHz bands, skip the rest */
2825 	for (band = 0; band <= NL80211_BAND_5GHZ; band++) {
2826 		/* copy legacy rate mask */
2827 		ratemask[band] = mask->control[band].legacy;
2828 		if (band == NL80211_BAND_5GHZ)
2829 			ratemask[band] =
2830 				mask->control[band].legacy << 4;
2831 
2832 		/* copy mcs rate mask */
2833 		mcsrate = mask->control[band].ht_mcs[0];
2834 		ratemask[band] |= mcsrate << 12;
2835 		ratemask[band] |= mcsrate << 20;
2836 	}
2837 
2838 	ath6kl_dbg(ATH6KL_DBG_WMI,
2839 		   "Ratemask 32 bit: 2.4:%x 5:%x\n",
2840 		   ratemask[0], ratemask[1]);
2841 
2842 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2843 	if (!skb)
2844 		return -ENOMEM;
2845 
2846 	cmd = (struct wmi_set_tx_select_rates32_cmd *) skb->data;
2847 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2848 		/* A mode operate in 5GHZ band */
2849 		if (mode == WMI_RATES_MODE_11A ||
2850 		    mode == WMI_RATES_MODE_11A_HT20 ||
2851 		    mode == WMI_RATES_MODE_11A_HT40)
2852 			band = NL80211_BAND_5GHZ;
2853 		else
2854 			band = NL80211_BAND_2GHZ;
2855 		cmd->ratemask[mode] = cpu_to_le32(ratemask[band]);
2856 	}
2857 
2858 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2859 				  WMI_SET_TX_SELECT_RATES_CMDID,
2860 				  NO_SYNC_WMIFLAG);
2861 	return ret;
2862 }
2863 
2864 int ath6kl_wmi_set_bitrate_mask(struct wmi *wmi, u8 if_idx,
2865 				const struct cfg80211_bitrate_mask *mask)
2866 {
2867 	struct ath6kl *ar = wmi->parent_dev;
2868 
2869 	if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES,
2870 		     ar->fw_capabilities))
2871 		return ath6kl_set_bitrate_mask64(wmi, if_idx, mask);
2872 	else
2873 		return ath6kl_set_bitrate_mask32(wmi, if_idx, mask);
2874 }
2875 
2876 int ath6kl_wmi_set_host_sleep_mode_cmd(struct wmi *wmi, u8 if_idx,
2877 				       enum ath6kl_host_mode host_mode)
2878 {
2879 	struct sk_buff *skb;
2880 	struct wmi_set_host_sleep_mode_cmd *cmd;
2881 	int ret;
2882 
2883 	if ((host_mode != ATH6KL_HOST_MODE_ASLEEP) &&
2884 	    (host_mode != ATH6KL_HOST_MODE_AWAKE)) {
2885 		ath6kl_err("invalid host sleep mode: %d\n", host_mode);
2886 		return -EINVAL;
2887 	}
2888 
2889 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2890 	if (!skb)
2891 		return -ENOMEM;
2892 
2893 	cmd = (struct wmi_set_host_sleep_mode_cmd *) skb->data;
2894 
2895 	if (host_mode == ATH6KL_HOST_MODE_ASLEEP) {
2896 		ath6kl_wmi_relinquish_implicit_pstream_credits(wmi);
2897 		cmd->asleep = cpu_to_le32(1);
2898 	} else {
2899 		cmd->awake = cpu_to_le32(1);
2900 	}
2901 
2902 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2903 				  WMI_SET_HOST_SLEEP_MODE_CMDID,
2904 				  NO_SYNC_WMIFLAG);
2905 	return ret;
2906 }
2907 
2908 /* This command has zero length payload */
2909 static int ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(struct wmi *wmi,
2910 						      struct ath6kl_vif *vif)
2911 {
2912 	struct ath6kl *ar = wmi->parent_dev;
2913 
2914 	set_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2915 	wake_up(&ar->event_wq);
2916 
2917 	return 0;
2918 }
2919 
2920 int ath6kl_wmi_set_wow_mode_cmd(struct wmi *wmi, u8 if_idx,
2921 				enum ath6kl_wow_mode wow_mode,
2922 				u32 filter, u16 host_req_delay)
2923 {
2924 	struct sk_buff *skb;
2925 	struct wmi_set_wow_mode_cmd *cmd;
2926 	int ret;
2927 
2928 	if ((wow_mode != ATH6KL_WOW_MODE_ENABLE) &&
2929 	    wow_mode != ATH6KL_WOW_MODE_DISABLE) {
2930 		ath6kl_err("invalid wow mode: %d\n", wow_mode);
2931 		return -EINVAL;
2932 	}
2933 
2934 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2935 	if (!skb)
2936 		return -ENOMEM;
2937 
2938 	cmd = (struct wmi_set_wow_mode_cmd *) skb->data;
2939 	cmd->enable_wow = cpu_to_le32(wow_mode);
2940 	cmd->filter = cpu_to_le32(filter);
2941 	cmd->host_req_delay = cpu_to_le16(host_req_delay);
2942 
2943 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WOW_MODE_CMDID,
2944 				  NO_SYNC_WMIFLAG);
2945 	return ret;
2946 }
2947 
2948 int ath6kl_wmi_add_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2949 				   u8 list_id, u8 filter_size,
2950 				   u8 filter_offset, const u8 *filter,
2951 				   const u8 *mask)
2952 {
2953 	struct sk_buff *skb;
2954 	struct wmi_add_wow_pattern_cmd *cmd;
2955 	u16 size;
2956 	u8 *filter_mask;
2957 	int ret;
2958 
2959 	/*
2960 	 * Allocate additional memory in the buffer to hold
2961 	 * filter and mask value, which is twice of filter_size.
2962 	 */
2963 	size = sizeof(*cmd) + (2 * filter_size);
2964 
2965 	skb = ath6kl_wmi_get_new_buf(size);
2966 	if (!skb)
2967 		return -ENOMEM;
2968 
2969 	cmd = (struct wmi_add_wow_pattern_cmd *) skb->data;
2970 	cmd->filter_list_id = list_id;
2971 	cmd->filter_size = filter_size;
2972 	cmd->filter_offset = filter_offset;
2973 
2974 	memcpy(cmd->filter, filter, filter_size);
2975 
2976 	filter_mask = (u8 *) (cmd->filter + filter_size);
2977 	memcpy(filter_mask, mask, filter_size);
2978 
2979 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_WOW_PATTERN_CMDID,
2980 				  NO_SYNC_WMIFLAG);
2981 
2982 	return ret;
2983 }
2984 
2985 int ath6kl_wmi_del_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2986 				   u16 list_id, u16 filter_id)
2987 {
2988 	struct sk_buff *skb;
2989 	struct wmi_del_wow_pattern_cmd *cmd;
2990 	int ret;
2991 
2992 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2993 	if (!skb)
2994 		return -ENOMEM;
2995 
2996 	cmd = (struct wmi_del_wow_pattern_cmd *) skb->data;
2997 	cmd->filter_list_id = cpu_to_le16(list_id);
2998 	cmd->filter_id = cpu_to_le16(filter_id);
2999 
3000 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DEL_WOW_PATTERN_CMDID,
3001 				  NO_SYNC_WMIFLAG);
3002 	return ret;
3003 }
3004 
3005 static int ath6kl_wmi_cmd_send_xtnd(struct wmi *wmi, struct sk_buff *skb,
3006 				    enum wmix_command_id cmd_id,
3007 				    enum wmi_sync_flag sync_flag)
3008 {
3009 	struct wmix_cmd_hdr *cmd_hdr;
3010 	int ret;
3011 
3012 	skb_push(skb, sizeof(struct wmix_cmd_hdr));
3013 
3014 	cmd_hdr = (struct wmix_cmd_hdr *) skb->data;
3015 	cmd_hdr->cmd_id = cpu_to_le32(cmd_id);
3016 
3017 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_EXTENSION_CMDID, sync_flag);
3018 
3019 	return ret;
3020 }
3021 
3022 int ath6kl_wmi_get_challenge_resp_cmd(struct wmi *wmi, u32 cookie, u32 source)
3023 {
3024 	struct sk_buff *skb;
3025 	struct wmix_hb_challenge_resp_cmd *cmd;
3026 	int ret;
3027 
3028 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3029 	if (!skb)
3030 		return -ENOMEM;
3031 
3032 	cmd = (struct wmix_hb_challenge_resp_cmd *) skb->data;
3033 	cmd->cookie = cpu_to_le32(cookie);
3034 	cmd->source = cpu_to_le32(source);
3035 
3036 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_HB_CHALLENGE_RESP_CMDID,
3037 				       NO_SYNC_WMIFLAG);
3038 	return ret;
3039 }
3040 
3041 int ath6kl_wmi_config_debug_module_cmd(struct wmi *wmi, u32 valid, u32 config)
3042 {
3043 	struct ath6kl_wmix_dbglog_cfg_module_cmd *cmd;
3044 	struct sk_buff *skb;
3045 	int ret;
3046 
3047 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3048 	if (!skb)
3049 		return -ENOMEM;
3050 
3051 	cmd = (struct ath6kl_wmix_dbglog_cfg_module_cmd *) skb->data;
3052 	cmd->valid = cpu_to_le32(valid);
3053 	cmd->config = cpu_to_le32(config);
3054 
3055 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_DBGLOG_CFG_MODULE_CMDID,
3056 				       NO_SYNC_WMIFLAG);
3057 	return ret;
3058 }
3059 
3060 int ath6kl_wmi_get_stats_cmd(struct wmi *wmi, u8 if_idx)
3061 {
3062 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_STATISTICS_CMDID);
3063 }
3064 
3065 int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 if_idx, u8 dbM)
3066 {
3067 	struct sk_buff *skb;
3068 	struct wmi_set_tx_pwr_cmd *cmd;
3069 	int ret;
3070 
3071 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_tx_pwr_cmd));
3072 	if (!skb)
3073 		return -ENOMEM;
3074 
3075 	cmd = (struct wmi_set_tx_pwr_cmd *) skb->data;
3076 	cmd->dbM = dbM;
3077 
3078 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_TX_PWR_CMDID,
3079 				  NO_SYNC_WMIFLAG);
3080 
3081 	return ret;
3082 }
3083 
3084 int ath6kl_wmi_get_tx_pwr_cmd(struct wmi *wmi, u8 if_idx)
3085 {
3086 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_TX_PWR_CMDID);
3087 }
3088 
3089 int ath6kl_wmi_get_roam_tbl_cmd(struct wmi *wmi)
3090 {
3091 	return ath6kl_wmi_simple_cmd(wmi, 0, WMI_GET_ROAM_TBL_CMDID);
3092 }
3093 
3094 int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 if_idx, u8 status,
3095 				 u8 preamble_policy)
3096 {
3097 	struct sk_buff *skb;
3098 	struct wmi_set_lpreamble_cmd *cmd;
3099 	int ret;
3100 
3101 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_lpreamble_cmd));
3102 	if (!skb)
3103 		return -ENOMEM;
3104 
3105 	cmd = (struct wmi_set_lpreamble_cmd *) skb->data;
3106 	cmd->status = status;
3107 	cmd->preamble_policy = preamble_policy;
3108 
3109 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LPREAMBLE_CMDID,
3110 				  NO_SYNC_WMIFLAG);
3111 	return ret;
3112 }
3113 
3114 int ath6kl_wmi_set_rts_cmd(struct wmi *wmi, u16 threshold)
3115 {
3116 	struct sk_buff *skb;
3117 	struct wmi_set_rts_cmd *cmd;
3118 	int ret;
3119 
3120 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_rts_cmd));
3121 	if (!skb)
3122 		return -ENOMEM;
3123 
3124 	cmd = (struct wmi_set_rts_cmd *) skb->data;
3125 	cmd->threshold = cpu_to_le16(threshold);
3126 
3127 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_RTS_CMDID,
3128 				  NO_SYNC_WMIFLAG);
3129 	return ret;
3130 }
3131 
3132 int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, u8 if_idx, enum wmi_txop_cfg cfg)
3133 {
3134 	struct sk_buff *skb;
3135 	struct wmi_set_wmm_txop_cmd *cmd;
3136 	int ret;
3137 
3138 	if (!((cfg == WMI_TXOP_DISABLED) || (cfg == WMI_TXOP_ENABLED)))
3139 		return -EINVAL;
3140 
3141 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_wmm_txop_cmd));
3142 	if (!skb)
3143 		return -ENOMEM;
3144 
3145 	cmd = (struct wmi_set_wmm_txop_cmd *) skb->data;
3146 	cmd->txop_enable = cfg;
3147 
3148 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WMM_TXOP_CMDID,
3149 				  NO_SYNC_WMIFLAG);
3150 	return ret;
3151 }
3152 
3153 int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 if_idx,
3154 				 u8 keep_alive_intvl)
3155 {
3156 	struct sk_buff *skb;
3157 	struct wmi_set_keepalive_cmd *cmd;
3158 	int ret;
3159 
3160 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3161 	if (!skb)
3162 		return -ENOMEM;
3163 
3164 	cmd = (struct wmi_set_keepalive_cmd *) skb->data;
3165 	cmd->keep_alive_intvl = keep_alive_intvl;
3166 
3167 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_KEEPALIVE_CMDID,
3168 				  NO_SYNC_WMIFLAG);
3169 
3170 	if (ret == 0)
3171 		ath6kl_debug_set_keepalive(wmi->parent_dev, keep_alive_intvl);
3172 
3173 	return ret;
3174 }
3175 
3176 int ath6kl_wmi_set_htcap_cmd(struct wmi *wmi, u8 if_idx,
3177 			     enum nl80211_band band,
3178 			     struct ath6kl_htcap *htcap)
3179 {
3180 	struct sk_buff *skb;
3181 	struct wmi_set_htcap_cmd *cmd;
3182 
3183 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3184 	if (!skb)
3185 		return -ENOMEM;
3186 
3187 	cmd = (struct wmi_set_htcap_cmd *) skb->data;
3188 
3189 	/*
3190 	 * NOTE: Band in firmware matches enum nl80211_band, it is unlikely
3191 	 * this will be changed in firmware. If at all there is any change in
3192 	 * band value, the host needs to be fixed.
3193 	 */
3194 	cmd->band = band;
3195 	cmd->ht_enable = !!htcap->ht_enable;
3196 	cmd->ht20_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_20);
3197 	cmd->ht40_supported =
3198 		!!(htcap->cap_info & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
3199 	cmd->ht40_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_40);
3200 	cmd->intolerant_40mhz =
3201 		!!(htcap->cap_info & IEEE80211_HT_CAP_40MHZ_INTOLERANT);
3202 	cmd->max_ampdu_len_exp = htcap->ampdu_factor;
3203 
3204 	ath6kl_dbg(ATH6KL_DBG_WMI,
3205 		   "Set htcap: band:%d ht_enable:%d 40mhz:%d sgi_20mhz:%d sgi_40mhz:%d 40mhz_intolerant:%d ampdu_len_exp:%d\n",
3206 		   cmd->band, cmd->ht_enable, cmd->ht40_supported,
3207 		   cmd->ht20_sgi, cmd->ht40_sgi, cmd->intolerant_40mhz,
3208 		   cmd->max_ampdu_len_exp);
3209 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_HT_CAP_CMDID,
3210 				   NO_SYNC_WMIFLAG);
3211 }
3212 
3213 int ath6kl_wmi_test_cmd(struct wmi *wmi, void *buf, size_t len)
3214 {
3215 	struct sk_buff *skb;
3216 	int ret;
3217 
3218 	skb = ath6kl_wmi_get_new_buf(len);
3219 	if (!skb)
3220 		return -ENOMEM;
3221 
3222 	memcpy(skb->data, buf, len);
3223 
3224 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_TEST_CMDID, NO_SYNC_WMIFLAG);
3225 
3226 	return ret;
3227 }
3228 
3229 int ath6kl_wmi_mcast_filter_cmd(struct wmi *wmi, u8 if_idx, bool mc_all_on)
3230 {
3231 	struct sk_buff *skb;
3232 	struct wmi_mcast_filter_cmd *cmd;
3233 	int ret;
3234 
3235 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3236 	if (!skb)
3237 		return -ENOMEM;
3238 
3239 	cmd = (struct wmi_mcast_filter_cmd *) skb->data;
3240 	cmd->mcast_all_enable = mc_all_on;
3241 
3242 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_MCAST_FILTER_CMDID,
3243 				  NO_SYNC_WMIFLAG);
3244 	return ret;
3245 }
3246 
3247 int ath6kl_wmi_add_del_mcast_filter_cmd(struct wmi *wmi, u8 if_idx,
3248 					u8 *filter, bool add_filter)
3249 {
3250 	struct sk_buff *skb;
3251 	struct wmi_mcast_filter_add_del_cmd *cmd;
3252 	int ret;
3253 
3254 	if ((filter[0] != 0x33 || filter[1] != 0x33) &&
3255 	    (filter[0] != 0x01 || filter[1] != 0x00 ||
3256 	    filter[2] != 0x5e || filter[3] > 0x7f)) {
3257 		ath6kl_warn("invalid multicast filter address\n");
3258 		return -EINVAL;
3259 	}
3260 
3261 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3262 	if (!skb)
3263 		return -ENOMEM;
3264 
3265 	cmd = (struct wmi_mcast_filter_add_del_cmd *) skb->data;
3266 	memcpy(cmd->mcast_mac, filter, ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
3267 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3268 				  add_filter ? WMI_SET_MCAST_FILTER_CMDID :
3269 				  WMI_DEL_MCAST_FILTER_CMDID,
3270 				  NO_SYNC_WMIFLAG);
3271 
3272 	return ret;
3273 }
3274 
3275 int ath6kl_wmi_sta_bmiss_enhance_cmd(struct wmi *wmi, u8 if_idx, bool enhance)
3276 {
3277 	struct sk_buff *skb;
3278 	struct wmi_sta_bmiss_enhance_cmd *cmd;
3279 	int ret;
3280 
3281 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3282 	if (!skb)
3283 		return -ENOMEM;
3284 
3285 	cmd = (struct wmi_sta_bmiss_enhance_cmd *) skb->data;
3286 	cmd->enable = enhance ? 1 : 0;
3287 
3288 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3289 				  WMI_STA_BMISS_ENHANCE_CMDID,
3290 				  NO_SYNC_WMIFLAG);
3291 	return ret;
3292 }
3293 
3294 int ath6kl_wmi_set_regdomain_cmd(struct wmi *wmi, const char *alpha2)
3295 {
3296 	struct sk_buff *skb;
3297 	struct wmi_set_regdomain_cmd *cmd;
3298 
3299 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3300 	if (!skb)
3301 		return -ENOMEM;
3302 
3303 	cmd = (struct wmi_set_regdomain_cmd *) skb->data;
3304 	memcpy(cmd->iso_name, alpha2, 2);
3305 
3306 	return ath6kl_wmi_cmd_send(wmi, 0, skb,
3307 				   WMI_SET_REGDOMAIN_CMDID,
3308 				   NO_SYNC_WMIFLAG);
3309 }
3310 
3311 s32 ath6kl_wmi_get_rate(struct wmi *wmi, s8 rate_index)
3312 {
3313 	struct ath6kl *ar = wmi->parent_dev;
3314 	u8 sgi = 0;
3315 	s32 ret;
3316 
3317 	if (rate_index == RATE_AUTO)
3318 		return 0;
3319 
3320 	/* SGI is stored as the MSB of the rate_index */
3321 	if (rate_index & RATE_INDEX_MSB) {
3322 		rate_index &= RATE_INDEX_WITHOUT_SGI_MASK;
3323 		sgi = 1;
3324 	}
3325 
3326 	if (test_bit(ATH6KL_FW_CAPABILITY_RATETABLE_MCS15,
3327 		     ar->fw_capabilities)) {
3328 		if (WARN_ON(rate_index >= ARRAY_SIZE(wmi_rate_tbl_mcs15)))
3329 			return 0;
3330 
3331 		ret = wmi_rate_tbl_mcs15[(u32) rate_index][sgi];
3332 	} else {
3333 		if (WARN_ON(rate_index >= ARRAY_SIZE(wmi_rate_tbl)))
3334 			return 0;
3335 
3336 		ret = wmi_rate_tbl[(u32) rate_index][sgi];
3337 	}
3338 
3339 	return ret;
3340 }
3341 
3342 static int ath6kl_wmi_get_pmkid_list_event_rx(struct wmi *wmi, u8 *datap,
3343 					      u32 len)
3344 {
3345 	struct wmi_pmkid_list_reply *reply;
3346 	u32 expected_len;
3347 
3348 	if (len < sizeof(struct wmi_pmkid_list_reply))
3349 		return -EINVAL;
3350 
3351 	reply = (struct wmi_pmkid_list_reply *)datap;
3352 	expected_len = sizeof(reply->num_pmkid) +
3353 		le32_to_cpu(reply->num_pmkid) * WMI_PMKID_LEN;
3354 
3355 	if (len < expected_len)
3356 		return -EINVAL;
3357 
3358 	return 0;
3359 }
3360 
3361 static int ath6kl_wmi_addba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3362 					 struct ath6kl_vif *vif)
3363 {
3364 	struct wmi_addba_req_event *cmd = (struct wmi_addba_req_event *) datap;
3365 
3366 	aggr_recv_addba_req_evt(vif, cmd->tid,
3367 				le16_to_cpu(cmd->st_seq_no), cmd->win_sz);
3368 
3369 	return 0;
3370 }
3371 
3372 static int ath6kl_wmi_delba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3373 					 struct ath6kl_vif *vif)
3374 {
3375 	struct wmi_delba_event *cmd = (struct wmi_delba_event *) datap;
3376 
3377 	aggr_recv_delba_req_evt(vif, cmd->tid);
3378 
3379 	return 0;
3380 }
3381 
3382 /*  AP mode functions */
3383 
3384 int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, u8 if_idx,
3385 				 struct wmi_connect_cmd *p)
3386 {
3387 	struct sk_buff *skb;
3388 	struct wmi_connect_cmd *cm;
3389 	int res;
3390 
3391 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3392 	if (!skb)
3393 		return -ENOMEM;
3394 
3395 	cm = (struct wmi_connect_cmd *) skb->data;
3396 	memcpy(cm, p, sizeof(*cm));
3397 
3398 	res = ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_CONFIG_COMMIT_CMDID,
3399 				  NO_SYNC_WMIFLAG);
3400 	ath6kl_dbg(ATH6KL_DBG_WMI,
3401 		   "%s: nw_type=%u auth_mode=%u ch=%u ctrl_flags=0x%x-> res=%d\n",
3402 		   __func__, p->nw_type, p->auth_mode, le16_to_cpu(p->ch),
3403 		   le32_to_cpu(p->ctrl_flags), res);
3404 	return res;
3405 }
3406 
3407 int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 if_idx, u8 cmd, const u8 *mac,
3408 			   u16 reason)
3409 {
3410 	struct sk_buff *skb;
3411 	struct wmi_ap_set_mlme_cmd *cm;
3412 
3413 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3414 	if (!skb)
3415 		return -ENOMEM;
3416 
3417 	cm = (struct wmi_ap_set_mlme_cmd *) skb->data;
3418 	memcpy(cm->mac, mac, ETH_ALEN);
3419 	cm->reason = cpu_to_le16(reason);
3420 	cm->cmd = cmd;
3421 
3422 	ath6kl_dbg(ATH6KL_DBG_WMI, "ap_set_mlme: cmd=%d reason=%d\n", cm->cmd,
3423 		   cm->reason);
3424 
3425 	return ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_SET_MLME_CMDID,
3426 				   NO_SYNC_WMIFLAG);
3427 }
3428 
3429 int ath6kl_wmi_ap_hidden_ssid(struct wmi *wmi, u8 if_idx, bool enable)
3430 {
3431 	struct sk_buff *skb;
3432 	struct wmi_ap_hidden_ssid_cmd *cmd;
3433 
3434 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3435 	if (!skb)
3436 		return -ENOMEM;
3437 
3438 	cmd = (struct wmi_ap_hidden_ssid_cmd *) skb->data;
3439 	cmd->hidden_ssid = enable ? 1 : 0;
3440 
3441 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_HIDDEN_SSID_CMDID,
3442 				   NO_SYNC_WMIFLAG);
3443 }
3444 
3445 /* This command will be used to enable/disable AP uAPSD feature */
3446 int ath6kl_wmi_ap_set_apsd(struct wmi *wmi, u8 if_idx, u8 enable)
3447 {
3448 	struct wmi_ap_set_apsd_cmd *cmd;
3449 	struct sk_buff *skb;
3450 
3451 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3452 	if (!skb)
3453 		return -ENOMEM;
3454 
3455 	cmd = (struct wmi_ap_set_apsd_cmd *)skb->data;
3456 	cmd->enable = enable;
3457 
3458 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_APSD_CMDID,
3459 				   NO_SYNC_WMIFLAG);
3460 }
3461 
3462 int ath6kl_wmi_set_apsd_bfrd_traf(struct wmi *wmi, u8 if_idx,
3463 					     u16 aid, u16 bitmap, u32 flags)
3464 {
3465 	struct wmi_ap_apsd_buffered_traffic_cmd *cmd;
3466 	struct sk_buff *skb;
3467 
3468 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3469 	if (!skb)
3470 		return -ENOMEM;
3471 
3472 	cmd = (struct wmi_ap_apsd_buffered_traffic_cmd *)skb->data;
3473 	cmd->aid = cpu_to_le16(aid);
3474 	cmd->bitmap = cpu_to_le16(bitmap);
3475 	cmd->flags = cpu_to_le32(flags);
3476 
3477 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3478 				   WMI_AP_APSD_BUFFERED_TRAFFIC_CMDID,
3479 				   NO_SYNC_WMIFLAG);
3480 }
3481 
3482 static int ath6kl_wmi_pspoll_event_rx(struct wmi *wmi, u8 *datap, int len,
3483 				      struct ath6kl_vif *vif)
3484 {
3485 	struct wmi_pspoll_event *ev;
3486 
3487 	if (len < sizeof(struct wmi_pspoll_event))
3488 		return -EINVAL;
3489 
3490 	ev = (struct wmi_pspoll_event *) datap;
3491 
3492 	ath6kl_pspoll_event(vif, le16_to_cpu(ev->aid));
3493 
3494 	return 0;
3495 }
3496 
3497 static int ath6kl_wmi_dtimexpiry_event_rx(struct wmi *wmi, u8 *datap, int len,
3498 					  struct ath6kl_vif *vif)
3499 {
3500 	ath6kl_dtimexpiry_event(vif);
3501 
3502 	return 0;
3503 }
3504 
3505 int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u8 if_idx, u16 aid,
3506 			   bool flag)
3507 {
3508 	struct sk_buff *skb;
3509 	struct wmi_ap_set_pvb_cmd *cmd;
3510 	int ret;
3511 
3512 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_ap_set_pvb_cmd));
3513 	if (!skb)
3514 		return -ENOMEM;
3515 
3516 	cmd = (struct wmi_ap_set_pvb_cmd *) skb->data;
3517 	cmd->aid = cpu_to_le16(aid);
3518 	cmd->rsvd = cpu_to_le16(0);
3519 	cmd->flag = cpu_to_le32(flag);
3520 
3521 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_PVB_CMDID,
3522 				  NO_SYNC_WMIFLAG);
3523 
3524 	return 0;
3525 }
3526 
3527 int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 if_idx,
3528 				       u8 rx_meta_ver,
3529 				       bool rx_dot11_hdr, bool defrag_on_host)
3530 {
3531 	struct sk_buff *skb;
3532 	struct wmi_rx_frame_format_cmd *cmd;
3533 	int ret;
3534 
3535 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3536 	if (!skb)
3537 		return -ENOMEM;
3538 
3539 	cmd = (struct wmi_rx_frame_format_cmd *) skb->data;
3540 	cmd->dot11_hdr = rx_dot11_hdr ? 1 : 0;
3541 	cmd->defrag_on_host = defrag_on_host ? 1 : 0;
3542 	cmd->meta_ver = rx_meta_ver;
3543 
3544 	/* Delete the local aggr state, on host */
3545 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RX_FRAME_FORMAT_CMDID,
3546 				  NO_SYNC_WMIFLAG);
3547 
3548 	return ret;
3549 }
3550 
3551 int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type,
3552 			     const u8 *ie, u8 ie_len)
3553 {
3554 	struct sk_buff *skb;
3555 	struct wmi_set_appie_cmd *p;
3556 
3557 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3558 	if (!skb)
3559 		return -ENOMEM;
3560 
3561 	ath6kl_dbg(ATH6KL_DBG_WMI,
3562 		   "set_appie_cmd: mgmt_frm_type=%u ie_len=%u\n",
3563 		   mgmt_frm_type, ie_len);
3564 	p = (struct wmi_set_appie_cmd *) skb->data;
3565 	p->mgmt_frm_type = mgmt_frm_type;
3566 	p->ie_len = ie_len;
3567 
3568 	if (ie != NULL && ie_len > 0)
3569 		memcpy(p->ie_info, ie, ie_len);
3570 
3571 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_APPIE_CMDID,
3572 				   NO_SYNC_WMIFLAG);
3573 }
3574 
3575 int ath6kl_wmi_set_ie_cmd(struct wmi *wmi, u8 if_idx, u8 ie_id, u8 ie_field,
3576 			  const u8 *ie_info, u8 ie_len)
3577 {
3578 	struct sk_buff *skb;
3579 	struct wmi_set_ie_cmd *p;
3580 
3581 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3582 	if (!skb)
3583 		return -ENOMEM;
3584 
3585 	ath6kl_dbg(ATH6KL_DBG_WMI, "set_ie_cmd: ie_id=%u ie_ie_field=%u ie_len=%u\n",
3586 		   ie_id, ie_field, ie_len);
3587 	p = (struct wmi_set_ie_cmd *) skb->data;
3588 	p->ie_id = ie_id;
3589 	p->ie_field = ie_field;
3590 	p->ie_len = ie_len;
3591 	if (ie_info && ie_len > 0)
3592 		memcpy(p->ie_info, ie_info, ie_len);
3593 
3594 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IE_CMDID,
3595 				   NO_SYNC_WMIFLAG);
3596 }
3597 
3598 int ath6kl_wmi_disable_11b_rates_cmd(struct wmi *wmi, bool disable)
3599 {
3600 	struct sk_buff *skb;
3601 	struct wmi_disable_11b_rates_cmd *cmd;
3602 
3603 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3604 	if (!skb)
3605 		return -ENOMEM;
3606 
3607 	ath6kl_dbg(ATH6KL_DBG_WMI, "disable_11b_rates_cmd: disable=%u\n",
3608 		   disable);
3609 	cmd = (struct wmi_disable_11b_rates_cmd *) skb->data;
3610 	cmd->disable = disable ? 1 : 0;
3611 
3612 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_DISABLE_11B_RATES_CMDID,
3613 				   NO_SYNC_WMIFLAG);
3614 }
3615 
3616 int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx, u32 freq, u32 dur)
3617 {
3618 	struct sk_buff *skb;
3619 	struct wmi_remain_on_chnl_cmd *p;
3620 
3621 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3622 	if (!skb)
3623 		return -ENOMEM;
3624 
3625 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl_cmd: freq=%u dur=%u\n",
3626 		   freq, dur);
3627 	p = (struct wmi_remain_on_chnl_cmd *) skb->data;
3628 	p->freq = cpu_to_le32(freq);
3629 	p->duration = cpu_to_le32(dur);
3630 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_REMAIN_ON_CHNL_CMDID,
3631 				   NO_SYNC_WMIFLAG);
3632 }
3633 
3634 /* ath6kl_wmi_send_action_cmd is to be deprecated. Use
3635  * ath6kl_wmi_send_mgmt_cmd instead. The new function supports P2P
3636  * mgmt operations using station interface.
3637  */
3638 static int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3639 				      u32 freq, u32 wait, const u8 *data,
3640 				      u16 data_len)
3641 {
3642 	struct sk_buff *skb;
3643 	struct wmi_send_action_cmd *p;
3644 	u8 *buf;
3645 
3646 	if (wait)
3647 		return -EINVAL; /* Offload for wait not supported */
3648 
3649 	buf = kmalloc(data_len, GFP_KERNEL);
3650 	if (!buf)
3651 		return -ENOMEM;
3652 
3653 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3654 	if (!skb) {
3655 		kfree(buf);
3656 		return -ENOMEM;
3657 	}
3658 
3659 	kfree(wmi->last_mgmt_tx_frame);
3660 	memcpy(buf, data, data_len);
3661 	wmi->last_mgmt_tx_frame = buf;
3662 	wmi->last_mgmt_tx_frame_len = data_len;
3663 
3664 	ath6kl_dbg(ATH6KL_DBG_WMI,
3665 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3666 		   id, freq, wait, data_len);
3667 	p = (struct wmi_send_action_cmd *) skb->data;
3668 	p->id = cpu_to_le32(id);
3669 	p->freq = cpu_to_le32(freq);
3670 	p->wait = cpu_to_le32(wait);
3671 	p->len = cpu_to_le16(data_len);
3672 	memcpy(p->data, data, data_len);
3673 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_ACTION_CMDID,
3674 				   NO_SYNC_WMIFLAG);
3675 }
3676 
3677 static int __ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3678 				      u32 freq, u32 wait, const u8 *data,
3679 				      u16 data_len, u32 no_cck)
3680 {
3681 	struct sk_buff *skb;
3682 	struct wmi_send_mgmt_cmd *p;
3683 	u8 *buf;
3684 
3685 	if (wait)
3686 		return -EINVAL; /* Offload for wait not supported */
3687 
3688 	buf = kmalloc(data_len, GFP_KERNEL);
3689 	if (!buf)
3690 		return -ENOMEM;
3691 
3692 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3693 	if (!skb) {
3694 		kfree(buf);
3695 		return -ENOMEM;
3696 	}
3697 
3698 	kfree(wmi->last_mgmt_tx_frame);
3699 	memcpy(buf, data, data_len);
3700 	wmi->last_mgmt_tx_frame = buf;
3701 	wmi->last_mgmt_tx_frame_len = data_len;
3702 
3703 	ath6kl_dbg(ATH6KL_DBG_WMI,
3704 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3705 		   id, freq, wait, data_len);
3706 	p = (struct wmi_send_mgmt_cmd *) skb->data;
3707 	p->id = cpu_to_le32(id);
3708 	p->freq = cpu_to_le32(freq);
3709 	p->wait = cpu_to_le32(wait);
3710 	p->no_cck = cpu_to_le32(no_cck);
3711 	p->len = cpu_to_le16(data_len);
3712 	memcpy(p->data, data, data_len);
3713 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_MGMT_CMDID,
3714 				   NO_SYNC_WMIFLAG);
3715 }
3716 
3717 int ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id, u32 freq,
3718 				u32 wait, const u8 *data, u16 data_len,
3719 				u32 no_cck)
3720 {
3721 	int status;
3722 	struct ath6kl *ar = wmi->parent_dev;
3723 
3724 	if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
3725 		     ar->fw_capabilities)) {
3726 		/*
3727 		 * If capable of doing P2P mgmt operations using
3728 		 * station interface, send additional information like
3729 		 * supported rates to advertise and xmit rates for
3730 		 * probe requests
3731 		 */
3732 		status = __ath6kl_wmi_send_mgmt_cmd(ar->wmi, if_idx, id, freq,
3733 						    wait, data, data_len,
3734 						    no_cck);
3735 	} else {
3736 		status = ath6kl_wmi_send_action_cmd(ar->wmi, if_idx, id, freq,
3737 						    wait, data, data_len);
3738 	}
3739 
3740 	return status;
3741 }
3742 
3743 int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u8 if_idx, u32 freq,
3744 				       const u8 *dst, const u8 *data,
3745 				       u16 data_len)
3746 {
3747 	struct sk_buff *skb;
3748 	struct wmi_p2p_probe_response_cmd *p;
3749 	size_t cmd_len = sizeof(*p) + data_len;
3750 
3751 	if (data_len == 0)
3752 		cmd_len++; /* work around target minimum length requirement */
3753 
3754 	skb = ath6kl_wmi_get_new_buf(cmd_len);
3755 	if (!skb)
3756 		return -ENOMEM;
3757 
3758 	ath6kl_dbg(ATH6KL_DBG_WMI,
3759 		   "send_probe_response_cmd: freq=%u dst=%pM len=%u\n",
3760 		   freq, dst, data_len);
3761 	p = (struct wmi_p2p_probe_response_cmd *) skb->data;
3762 	p->freq = cpu_to_le32(freq);
3763 	memcpy(p->destination_addr, dst, ETH_ALEN);
3764 	p->len = cpu_to_le16(data_len);
3765 	memcpy(p->data, data, data_len);
3766 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3767 				   WMI_SEND_PROBE_RESPONSE_CMDID,
3768 				   NO_SYNC_WMIFLAG);
3769 }
3770 
3771 int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, u8 if_idx, bool enable)
3772 {
3773 	struct sk_buff *skb;
3774 	struct wmi_probe_req_report_cmd *p;
3775 
3776 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3777 	if (!skb)
3778 		return -ENOMEM;
3779 
3780 	ath6kl_dbg(ATH6KL_DBG_WMI, "probe_report_req_cmd: enable=%u\n",
3781 		   enable);
3782 	p = (struct wmi_probe_req_report_cmd *) skb->data;
3783 	p->enable = enable ? 1 : 0;
3784 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_PROBE_REQ_REPORT_CMDID,
3785 				   NO_SYNC_WMIFLAG);
3786 }
3787 
3788 int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u8 if_idx, u32 info_req_flags)
3789 {
3790 	struct sk_buff *skb;
3791 	struct wmi_get_p2p_info *p;
3792 
3793 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3794 	if (!skb)
3795 		return -ENOMEM;
3796 
3797 	ath6kl_dbg(ATH6KL_DBG_WMI, "info_req_cmd: flags=%x\n",
3798 		   info_req_flags);
3799 	p = (struct wmi_get_p2p_info *) skb->data;
3800 	p->info_req_flags = cpu_to_le32(info_req_flags);
3801 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_GET_P2P_INFO_CMDID,
3802 				   NO_SYNC_WMIFLAG);
3803 }
3804 
3805 int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx)
3806 {
3807 	ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl_cmd\n");
3808 	return ath6kl_wmi_simple_cmd(wmi, if_idx,
3809 				     WMI_CANCEL_REMAIN_ON_CHNL_CMDID);
3810 }
3811 
3812 int ath6kl_wmi_set_inact_period(struct wmi *wmi, u8 if_idx, int inact_timeout)
3813 {
3814 	struct sk_buff *skb;
3815 	struct wmi_set_inact_period_cmd *cmd;
3816 
3817 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3818 	if (!skb)
3819 		return -ENOMEM;
3820 
3821 	cmd = (struct wmi_set_inact_period_cmd *) skb->data;
3822 	cmd->inact_period = cpu_to_le32(inact_timeout);
3823 	cmd->num_null_func = 0;
3824 
3825 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_CONN_INACT_CMDID,
3826 				   NO_SYNC_WMIFLAG);
3827 }
3828 
3829 static void ath6kl_wmi_hb_challenge_resp_event(struct wmi *wmi, u8 *datap,
3830 					       int len)
3831 {
3832 	struct wmix_hb_challenge_resp_cmd *cmd;
3833 
3834 	if (len < sizeof(struct wmix_hb_challenge_resp_cmd))
3835 		return;
3836 
3837 	cmd = (struct wmix_hb_challenge_resp_cmd *) datap;
3838 	ath6kl_recovery_hb_event(wmi->parent_dev,
3839 				 le32_to_cpu(cmd->cookie));
3840 }
3841 
3842 static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb)
3843 {
3844 	struct wmix_cmd_hdr *cmd;
3845 	u32 len;
3846 	u16 id;
3847 	u8 *datap;
3848 	int ret = 0;
3849 
3850 	if (skb->len < sizeof(struct wmix_cmd_hdr)) {
3851 		ath6kl_err("bad packet 1\n");
3852 		return -EINVAL;
3853 	}
3854 
3855 	cmd = (struct wmix_cmd_hdr *) skb->data;
3856 	id = le32_to_cpu(cmd->cmd_id);
3857 
3858 	skb_pull(skb, sizeof(struct wmix_cmd_hdr));
3859 
3860 	datap = skb->data;
3861 	len = skb->len;
3862 
3863 	switch (id) {
3864 	case WMIX_HB_CHALLENGE_RESP_EVENTID:
3865 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event hb challenge resp\n");
3866 		ath6kl_wmi_hb_challenge_resp_event(wmi, datap, len);
3867 		break;
3868 	case WMIX_DBGLOG_EVENTID:
3869 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event dbglog len %d\n", len);
3870 		ath6kl_debug_fwlog_event(wmi->parent_dev, datap, len);
3871 		break;
3872 	default:
3873 		ath6kl_warn("unknown cmd id 0x%x\n", id);
3874 		ret = -EINVAL;
3875 		break;
3876 	}
3877 
3878 	return ret;
3879 }
3880 
3881 static int ath6kl_wmi_roam_tbl_event_rx(struct wmi *wmi, u8 *datap, int len)
3882 {
3883 	return ath6kl_debug_roam_tbl_event(wmi->parent_dev, datap, len);
3884 }
3885 
3886 /* Process interface specific wmi events, caller would free the datap */
3887 static int ath6kl_wmi_proc_events_vif(struct wmi *wmi, u16 if_idx, u16 cmd_id,
3888 					u8 *datap, u32 len)
3889 {
3890 	struct ath6kl_vif *vif;
3891 
3892 	vif = ath6kl_get_vif_by_index(wmi->parent_dev, if_idx);
3893 	if (!vif) {
3894 		ath6kl_dbg(ATH6KL_DBG_WMI,
3895 			   "Wmi event for unavailable vif, vif_index:%d\n",
3896 			    if_idx);
3897 		return -EINVAL;
3898 	}
3899 
3900 	switch (cmd_id) {
3901 	case WMI_CONNECT_EVENTID:
3902 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CONNECT_EVENTID\n");
3903 		return ath6kl_wmi_connect_event_rx(wmi, datap, len, vif);
3904 	case WMI_DISCONNECT_EVENTID:
3905 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DISCONNECT_EVENTID\n");
3906 		return ath6kl_wmi_disconnect_event_rx(wmi, datap, len, vif);
3907 	case WMI_TKIP_MICERR_EVENTID:
3908 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TKIP_MICERR_EVENTID\n");
3909 		return ath6kl_wmi_tkip_micerr_event_rx(wmi, datap, len, vif);
3910 	case WMI_BSSINFO_EVENTID:
3911 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_BSSINFO_EVENTID\n");
3912 		return ath6kl_wmi_bssinfo_event_rx(wmi, datap, len, vif);
3913 	case WMI_NEIGHBOR_REPORT_EVENTID:
3914 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_NEIGHBOR_REPORT_EVENTID\n");
3915 		return ath6kl_wmi_neighbor_report_event_rx(wmi, datap, len,
3916 							   vif);
3917 	case WMI_SCAN_COMPLETE_EVENTID:
3918 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SCAN_COMPLETE_EVENTID\n");
3919 		return ath6kl_wmi_scan_complete_rx(wmi, datap, len, vif);
3920 	case WMI_REPORT_STATISTICS_EVENTID:
3921 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_STATISTICS_EVENTID\n");
3922 		return ath6kl_wmi_stats_event_rx(wmi, datap, len, vif);
3923 	case WMI_CAC_EVENTID:
3924 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CAC_EVENTID\n");
3925 		return ath6kl_wmi_cac_event_rx(wmi, datap, len, vif);
3926 	case WMI_PSPOLL_EVENTID:
3927 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSPOLL_EVENTID\n");
3928 		return ath6kl_wmi_pspoll_event_rx(wmi, datap, len, vif);
3929 	case WMI_DTIMEXPIRY_EVENTID:
3930 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DTIMEXPIRY_EVENTID\n");
3931 		return ath6kl_wmi_dtimexpiry_event_rx(wmi, datap, len, vif);
3932 	case WMI_ADDBA_REQ_EVENTID:
3933 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_REQ_EVENTID\n");
3934 		return ath6kl_wmi_addba_req_event_rx(wmi, datap, len, vif);
3935 	case WMI_DELBA_REQ_EVENTID:
3936 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DELBA_REQ_EVENTID\n");
3937 		return ath6kl_wmi_delba_req_event_rx(wmi, datap, len, vif);
3938 	case WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID:
3939 		ath6kl_dbg(ATH6KL_DBG_WMI,
3940 			   "WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID");
3941 		return ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(wmi, vif);
3942 	case WMI_REMAIN_ON_CHNL_EVENTID:
3943 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REMAIN_ON_CHNL_EVENTID\n");
3944 		return ath6kl_wmi_remain_on_chnl_event_rx(wmi, datap, len, vif);
3945 	case WMI_CANCEL_REMAIN_ON_CHNL_EVENTID:
3946 		ath6kl_dbg(ATH6KL_DBG_WMI,
3947 			   "WMI_CANCEL_REMAIN_ON_CHNL_EVENTID\n");
3948 		return ath6kl_wmi_cancel_remain_on_chnl_event_rx(wmi, datap,
3949 								 len, vif);
3950 	case WMI_TX_STATUS_EVENTID:
3951 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_STATUS_EVENTID\n");
3952 		return ath6kl_wmi_tx_status_event_rx(wmi, datap, len, vif);
3953 	case WMI_RX_PROBE_REQ_EVENTID:
3954 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_PROBE_REQ_EVENTID\n");
3955 		return ath6kl_wmi_rx_probe_req_event_rx(wmi, datap, len, vif);
3956 	case WMI_RX_ACTION_EVENTID:
3957 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_ACTION_EVENTID\n");
3958 		return ath6kl_wmi_rx_action_event_rx(wmi, datap, len, vif);
3959 	case WMI_TXE_NOTIFY_EVENTID:
3960 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TXE_NOTIFY_EVENTID\n");
3961 		return ath6kl_wmi_txe_notify_event_rx(wmi, datap, len, vif);
3962 	default:
3963 		ath6kl_dbg(ATH6KL_DBG_WMI, "unknown cmd id 0x%x\n", cmd_id);
3964 		return -EINVAL;
3965 	}
3966 
3967 	return 0;
3968 }
3969 
3970 static int ath6kl_wmi_proc_events(struct wmi *wmi, struct sk_buff *skb)
3971 {
3972 	struct wmi_cmd_hdr *cmd;
3973 	int ret = 0;
3974 	u32 len;
3975 	u16 id;
3976 	u8 if_idx;
3977 	u8 *datap;
3978 
3979 	cmd = (struct wmi_cmd_hdr *) skb->data;
3980 	id = le16_to_cpu(cmd->cmd_id);
3981 	if_idx = le16_to_cpu(cmd->info1) & WMI_CMD_HDR_IF_ID_MASK;
3982 
3983 	skb_pull(skb, sizeof(struct wmi_cmd_hdr));
3984 	datap = skb->data;
3985 	len = skb->len;
3986 
3987 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi rx id %d len %d\n", id, len);
3988 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi rx ",
3989 			datap, len);
3990 
3991 	switch (id) {
3992 	case WMI_GET_BITRATE_CMDID:
3993 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_BITRATE_CMDID\n");
3994 		ret = ath6kl_wmi_bitrate_reply_rx(wmi, datap, len);
3995 		break;
3996 	case WMI_GET_CHANNEL_LIST_CMDID:
3997 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_CHANNEL_LIST_CMDID\n");
3998 		ret = ath6kl_wmi_ch_list_reply_rx(wmi, datap, len);
3999 		break;
4000 	case WMI_GET_TX_PWR_CMDID:
4001 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_TX_PWR_CMDID\n");
4002 		ret = ath6kl_wmi_tx_pwr_reply_rx(wmi, datap, len);
4003 		break;
4004 	case WMI_READY_EVENTID:
4005 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_READY_EVENTID\n");
4006 		ret = ath6kl_wmi_ready_event_rx(wmi, datap, len);
4007 		break;
4008 	case WMI_PEER_NODE_EVENTID:
4009 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PEER_NODE_EVENTID\n");
4010 		ret = ath6kl_wmi_peer_node_event_rx(wmi, datap, len);
4011 		break;
4012 	case WMI_REGDOMAIN_EVENTID:
4013 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REGDOMAIN_EVENTID\n");
4014 		ath6kl_wmi_regdomain_event(wmi, datap, len);
4015 		break;
4016 	case WMI_PSTREAM_TIMEOUT_EVENTID:
4017 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSTREAM_TIMEOUT_EVENTID\n");
4018 		ret = ath6kl_wmi_pstream_timeout_event_rx(wmi, datap, len);
4019 		break;
4020 	case WMI_CMDERROR_EVENTID:
4021 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CMDERROR_EVENTID\n");
4022 		ret = ath6kl_wmi_error_event_rx(wmi, datap, len);
4023 		break;
4024 	case WMI_RSSI_THRESHOLD_EVENTID:
4025 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RSSI_THRESHOLD_EVENTID\n");
4026 		ret = ath6kl_wmi_rssi_threshold_event_rx(wmi, datap, len);
4027 		break;
4028 	case WMI_ERROR_REPORT_EVENTID:
4029 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ERROR_REPORT_EVENTID\n");
4030 		break;
4031 	case WMI_OPT_RX_FRAME_EVENTID:
4032 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_OPT_RX_FRAME_EVENTID\n");
4033 		/* this event has been deprecated */
4034 		break;
4035 	case WMI_REPORT_ROAM_TBL_EVENTID:
4036 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_TBL_EVENTID\n");
4037 		ret = ath6kl_wmi_roam_tbl_event_rx(wmi, datap, len);
4038 		break;
4039 	case WMI_EXTENSION_EVENTID:
4040 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_EXTENSION_EVENTID\n");
4041 		ret = ath6kl_wmi_control_rx_xtnd(wmi, skb);
4042 		break;
4043 	case WMI_CHANNEL_CHANGE_EVENTID:
4044 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CHANNEL_CHANGE_EVENTID\n");
4045 		break;
4046 	case WMI_REPORT_ROAM_DATA_EVENTID:
4047 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_DATA_EVENTID\n");
4048 		break;
4049 	case WMI_TEST_EVENTID:
4050 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TEST_EVENTID\n");
4051 		ret = ath6kl_wmi_test_rx(wmi, datap, len);
4052 		break;
4053 	case WMI_GET_FIXRATES_CMDID:
4054 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_FIXRATES_CMDID\n");
4055 		ret = ath6kl_wmi_ratemask_reply_rx(wmi, datap, len);
4056 		break;
4057 	case WMI_TX_RETRY_ERR_EVENTID:
4058 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_RETRY_ERR_EVENTID\n");
4059 		break;
4060 	case WMI_SNR_THRESHOLD_EVENTID:
4061 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SNR_THRESHOLD_EVENTID\n");
4062 		ret = ath6kl_wmi_snr_threshold_event_rx(wmi, datap, len);
4063 		break;
4064 	case WMI_LQ_THRESHOLD_EVENTID:
4065 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_LQ_THRESHOLD_EVENTID\n");
4066 		break;
4067 	case WMI_APLIST_EVENTID:
4068 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_APLIST_EVENTID\n");
4069 		ret = ath6kl_wmi_aplist_event_rx(wmi, datap, len);
4070 		break;
4071 	case WMI_GET_KEEPALIVE_CMDID:
4072 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_KEEPALIVE_CMDID\n");
4073 		ret = ath6kl_wmi_keepalive_reply_rx(wmi, datap, len);
4074 		break;
4075 	case WMI_GET_WOW_LIST_EVENTID:
4076 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_WOW_LIST_EVENTID\n");
4077 		break;
4078 	case WMI_GET_PMKID_LIST_EVENTID:
4079 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_PMKID_LIST_EVENTID\n");
4080 		ret = ath6kl_wmi_get_pmkid_list_event_rx(wmi, datap, len);
4081 		break;
4082 	case WMI_SET_PARAMS_REPLY_EVENTID:
4083 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SET_PARAMS_REPLY_EVENTID\n");
4084 		break;
4085 	case WMI_ADDBA_RESP_EVENTID:
4086 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_RESP_EVENTID\n");
4087 		break;
4088 	case WMI_REPORT_BTCOEX_CONFIG_EVENTID:
4089 		ath6kl_dbg(ATH6KL_DBG_WMI,
4090 			   "WMI_REPORT_BTCOEX_CONFIG_EVENTID\n");
4091 		break;
4092 	case WMI_REPORT_BTCOEX_STATS_EVENTID:
4093 		ath6kl_dbg(ATH6KL_DBG_WMI,
4094 			   "WMI_REPORT_BTCOEX_STATS_EVENTID\n");
4095 		break;
4096 	case WMI_TX_COMPLETE_EVENTID:
4097 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_COMPLETE_EVENTID\n");
4098 		ret = ath6kl_wmi_tx_complete_event_rx(datap, len);
4099 		break;
4100 	case WMI_P2P_CAPABILITIES_EVENTID:
4101 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_CAPABILITIES_EVENTID\n");
4102 		ret = ath6kl_wmi_p2p_capabilities_event_rx(datap, len);
4103 		break;
4104 	case WMI_P2P_INFO_EVENTID:
4105 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_INFO_EVENTID\n");
4106 		ret = ath6kl_wmi_p2p_info_event_rx(datap, len);
4107 		break;
4108 	default:
4109 		/* may be the event is interface specific */
4110 		ret = ath6kl_wmi_proc_events_vif(wmi, if_idx, id, datap, len);
4111 		break;
4112 	}
4113 
4114 	dev_kfree_skb(skb);
4115 	return ret;
4116 }
4117 
4118 /* Control Path */
4119 int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb)
4120 {
4121 	if (WARN_ON(skb == NULL))
4122 		return -EINVAL;
4123 
4124 	if (skb->len < sizeof(struct wmi_cmd_hdr)) {
4125 		ath6kl_err("bad packet 1\n");
4126 		dev_kfree_skb(skb);
4127 		return -EINVAL;
4128 	}
4129 
4130 	trace_ath6kl_wmi_event(skb->data, skb->len);
4131 
4132 	return ath6kl_wmi_proc_events(wmi, skb);
4133 }
4134 
4135 void ath6kl_wmi_reset(struct wmi *wmi)
4136 {
4137 	spin_lock_bh(&wmi->lock);
4138 
4139 	wmi->fat_pipe_exist = 0;
4140 	memset(wmi->stream_exist_for_ac, 0, sizeof(wmi->stream_exist_for_ac));
4141 
4142 	spin_unlock_bh(&wmi->lock);
4143 }
4144 
4145 void *ath6kl_wmi_init(struct ath6kl *dev)
4146 {
4147 	struct wmi *wmi;
4148 
4149 	wmi = kzalloc(sizeof(struct wmi), GFP_KERNEL);
4150 	if (!wmi)
4151 		return NULL;
4152 
4153 	spin_lock_init(&wmi->lock);
4154 
4155 	wmi->parent_dev = dev;
4156 
4157 	wmi->pwr_mode = REC_POWER;
4158 
4159 	ath6kl_wmi_reset(wmi);
4160 
4161 	return wmi;
4162 }
4163 
4164 void ath6kl_wmi_shutdown(struct wmi *wmi)
4165 {
4166 	if (!wmi)
4167 		return;
4168 
4169 	kfree(wmi->last_mgmt_tx_frame);
4170 	kfree(wmi);
4171 }
4172