xref: /linux/drivers/net/wireless/ath/ath6kl/wmi.c (revision 24168c5e6dfbdd5b414f048f47f75d64533296ca)
1 /*
2  * Copyright (c) 2004-2011 Atheros Communications Inc.
3  * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
4  *
5  * Permission to use, copy, modify, and/or distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #include <linux/ip.h>
19 #include <linux/in.h>
20 #include "core.h"
21 #include "debug.h"
22 #include "testmode.h"
23 #include "trace.h"
24 #include "../regd.h"
25 #include "../regd_common.h"
26 
27 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx);
28 
29 static const s32 wmi_rate_tbl[][2] = {
30 	/* {W/O SGI, with SGI} */
31 	{1000, 1000},
32 	{2000, 2000},
33 	{5500, 5500},
34 	{11000, 11000},
35 	{6000, 6000},
36 	{9000, 9000},
37 	{12000, 12000},
38 	{18000, 18000},
39 	{24000, 24000},
40 	{36000, 36000},
41 	{48000, 48000},
42 	{54000, 54000},
43 	{6500, 7200},
44 	{13000, 14400},
45 	{19500, 21700},
46 	{26000, 28900},
47 	{39000, 43300},
48 	{52000, 57800},
49 	{58500, 65000},
50 	{65000, 72200},
51 	{13500, 15000},
52 	{27000, 30000},
53 	{40500, 45000},
54 	{54000, 60000},
55 	{81000, 90000},
56 	{108000, 120000},
57 	{121500, 135000},
58 	{135000, 150000},
59 	{0, 0}
60 };
61 
62 static const s32 wmi_rate_tbl_mcs15[][2] = {
63 	/* {W/O SGI, with SGI} */
64 	{1000, 1000},
65 	{2000, 2000},
66 	{5500, 5500},
67 	{11000, 11000},
68 	{6000, 6000},
69 	{9000, 9000},
70 	{12000, 12000},
71 	{18000, 18000},
72 	{24000, 24000},
73 	{36000, 36000},
74 	{48000, 48000},
75 	{54000, 54000},
76 	{6500, 7200},     /* HT 20, MCS 0 */
77 	{13000, 14400},
78 	{19500, 21700},
79 	{26000, 28900},
80 	{39000, 43300},
81 	{52000, 57800},
82 	{58500, 65000},
83 	{65000, 72200},
84 	{13000, 14400},   /* HT 20, MCS 8 */
85 	{26000, 28900},
86 	{39000, 43300},
87 	{52000, 57800},
88 	{78000, 86700},
89 	{104000, 115600},
90 	{117000, 130000},
91 	{130000, 144400}, /* HT 20, MCS 15 */
92 	{13500, 15000},   /*HT 40, MCS 0 */
93 	{27000, 30000},
94 	{40500, 45000},
95 	{54000, 60000},
96 	{81000, 90000},
97 	{108000, 120000},
98 	{121500, 135000},
99 	{135000, 150000},
100 	{27000, 30000},   /*HT 40, MCS 8 */
101 	{54000, 60000},
102 	{81000, 90000},
103 	{108000, 120000},
104 	{162000, 180000},
105 	{216000, 240000},
106 	{243000, 270000},
107 	{270000, 300000}, /*HT 40, MCS 15 */
108 	{0, 0}
109 };
110 
111 /* 802.1d to AC mapping. Refer pg 57 of WMM-test-plan-v1.2 */
112 static const u8 up_to_ac[] = {
113 	WMM_AC_BE,
114 	WMM_AC_BK,
115 	WMM_AC_BK,
116 	WMM_AC_BE,
117 	WMM_AC_VI,
118 	WMM_AC_VI,
119 	WMM_AC_VO,
120 	WMM_AC_VO,
121 };
122 
123 void ath6kl_wmi_set_control_ep(struct wmi *wmi, enum htc_endpoint_id ep_id)
124 {
125 	if (WARN_ON(ep_id == ENDPOINT_UNUSED || ep_id >= ENDPOINT_MAX))
126 		return;
127 
128 	wmi->ep_id = ep_id;
129 }
130 
131 enum htc_endpoint_id ath6kl_wmi_get_control_ep(struct wmi *wmi)
132 {
133 	return wmi->ep_id;
134 }
135 
136 struct ath6kl_vif *ath6kl_get_vif_by_index(struct ath6kl *ar, u8 if_idx)
137 {
138 	struct ath6kl_vif *vif, *found = NULL;
139 
140 	if (WARN_ON(if_idx > (ar->vif_max - 1)))
141 		return NULL;
142 
143 	/* FIXME: Locking */
144 	spin_lock_bh(&ar->list_lock);
145 	list_for_each_entry(vif, &ar->vif_list, list) {
146 		if (vif->fw_vif_idx == if_idx) {
147 			found = vif;
148 			break;
149 		}
150 	}
151 	spin_unlock_bh(&ar->list_lock);
152 
153 	return found;
154 }
155 
156 /*  Performs DIX to 802.3 encapsulation for transmit packets.
157  *  Assumes the entire DIX header is contiguous and that there is
158  *  enough room in the buffer for a 802.3 mac header and LLC+SNAP headers.
159  */
160 int ath6kl_wmi_dix_2_dot3(struct wmi *wmi, struct sk_buff *skb)
161 {
162 	struct ath6kl_llc_snap_hdr *llc_hdr;
163 	struct ethhdr *eth_hdr;
164 	size_t new_len;
165 	__be16 type;
166 	u8 *datap;
167 	u16 size;
168 
169 	if (WARN_ON(skb == NULL))
170 		return -EINVAL;
171 
172 	size = sizeof(struct ath6kl_llc_snap_hdr) + sizeof(struct wmi_data_hdr);
173 	if (skb_headroom(skb) < size)
174 		return -ENOMEM;
175 
176 	eth_hdr = (struct ethhdr *) skb->data;
177 	type = eth_hdr->h_proto;
178 
179 	if (!is_ethertype(be16_to_cpu(type))) {
180 		ath6kl_dbg(ATH6KL_DBG_WMI,
181 			   "%s: pkt is already in 802.3 format\n", __func__);
182 		return 0;
183 	}
184 
185 	new_len = skb->len - sizeof(*eth_hdr) + sizeof(*llc_hdr);
186 
187 	skb_push(skb, sizeof(struct ath6kl_llc_snap_hdr));
188 	datap = skb->data;
189 
190 	eth_hdr->h_proto = cpu_to_be16(new_len);
191 
192 	memcpy(datap, eth_hdr, sizeof(*eth_hdr));
193 
194 	llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap + sizeof(*eth_hdr));
195 	llc_hdr->dsap = 0xAA;
196 	llc_hdr->ssap = 0xAA;
197 	llc_hdr->cntl = 0x03;
198 	llc_hdr->org_code[0] = 0x0;
199 	llc_hdr->org_code[1] = 0x0;
200 	llc_hdr->org_code[2] = 0x0;
201 	llc_hdr->eth_type = type;
202 
203 	return 0;
204 }
205 
206 static int ath6kl_wmi_meta_add(struct wmi *wmi, struct sk_buff *skb,
207 			       u8 *version, void *tx_meta_info)
208 {
209 	struct wmi_tx_meta_v1 *v1;
210 	struct wmi_tx_meta_v2 *v2;
211 
212 	if (WARN_ON(skb == NULL || version == NULL))
213 		return -EINVAL;
214 
215 	switch (*version) {
216 	case WMI_META_VERSION_1:
217 		skb_push(skb, WMI_MAX_TX_META_SZ);
218 		v1 = (struct wmi_tx_meta_v1 *) skb->data;
219 		v1->pkt_id = 0;
220 		v1->rate_plcy_id = 0;
221 		*version = WMI_META_VERSION_1;
222 		break;
223 	case WMI_META_VERSION_2:
224 		skb_push(skb, WMI_MAX_TX_META_SZ);
225 		v2 = (struct wmi_tx_meta_v2 *) skb->data;
226 		memcpy(v2, (struct wmi_tx_meta_v2 *) tx_meta_info,
227 		       sizeof(struct wmi_tx_meta_v2));
228 		break;
229 	}
230 
231 	return 0;
232 }
233 
234 int ath6kl_wmi_data_hdr_add(struct wmi *wmi, struct sk_buff *skb,
235 			    u8 msg_type, u32 flags,
236 			    enum wmi_data_hdr_data_type data_type,
237 			    u8 meta_ver, void *tx_meta_info, u8 if_idx)
238 {
239 	struct wmi_data_hdr *data_hdr;
240 	int ret;
241 
242 	if (WARN_ON(skb == NULL || (if_idx > wmi->parent_dev->vif_max - 1)))
243 		return -EINVAL;
244 
245 	if (tx_meta_info) {
246 		ret = ath6kl_wmi_meta_add(wmi, skb, &meta_ver, tx_meta_info);
247 		if (ret)
248 			return ret;
249 	}
250 
251 	skb_push(skb, sizeof(struct wmi_data_hdr));
252 
253 	data_hdr = (struct wmi_data_hdr *)skb->data;
254 	memset(data_hdr, 0, sizeof(struct wmi_data_hdr));
255 
256 	data_hdr->info = msg_type << WMI_DATA_HDR_MSG_TYPE_SHIFT;
257 	data_hdr->info |= data_type << WMI_DATA_HDR_DATA_TYPE_SHIFT;
258 
259 	if (flags & WMI_DATA_HDR_FLAGS_MORE)
260 		data_hdr->info |= WMI_DATA_HDR_MORE;
261 
262 	if (flags & WMI_DATA_HDR_FLAGS_EOSP)
263 		data_hdr->info3 |= cpu_to_le16(WMI_DATA_HDR_EOSP);
264 
265 	data_hdr->info2 |= cpu_to_le16(meta_ver << WMI_DATA_HDR_META_SHIFT);
266 	data_hdr->info3 |= cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
267 
268 	return 0;
269 }
270 
271 u8 ath6kl_wmi_determine_user_priority(u8 *pkt, u32 layer2_pri)
272 {
273 	struct iphdr *ip_hdr = (struct iphdr *) pkt;
274 	u8 ip_pri;
275 
276 	/*
277 	 * Determine IPTOS priority
278 	 *
279 	 * IP-TOS - 8bits
280 	 *          : DSCP(6-bits) ECN(2-bits)
281 	 *          : DSCP - P2 P1 P0 X X X
282 	 * where (P2 P1 P0) form 802.1D
283 	 */
284 	ip_pri = ip_hdr->tos >> 5;
285 	ip_pri &= 0x7;
286 
287 	if ((layer2_pri & 0x7) > ip_pri)
288 		return (u8) layer2_pri & 0x7;
289 	else
290 		return ip_pri;
291 }
292 
293 u8 ath6kl_wmi_get_traffic_class(u8 user_priority)
294 {
295 	return  up_to_ac[user_priority & 0x7];
296 }
297 
298 int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, u8 if_idx,
299 				       struct sk_buff *skb,
300 				       u32 layer2_priority, bool wmm_enabled,
301 				       u8 *ac)
302 {
303 	struct wmi_data_hdr *data_hdr;
304 	struct ath6kl_llc_snap_hdr *llc_hdr;
305 	struct wmi_create_pstream_cmd cmd;
306 	u32 meta_size, hdr_size;
307 	u16 ip_type = IP_ETHERTYPE;
308 	u8 stream_exist, usr_pri;
309 	u8 traffic_class = WMM_AC_BE;
310 	u8 *datap;
311 
312 	if (WARN_ON(skb == NULL))
313 		return -EINVAL;
314 
315 	datap = skb->data;
316 	data_hdr = (struct wmi_data_hdr *) datap;
317 
318 	meta_size = ((le16_to_cpu(data_hdr->info2) >> WMI_DATA_HDR_META_SHIFT) &
319 		     WMI_DATA_HDR_META_MASK) ? WMI_MAX_TX_META_SZ : 0;
320 
321 	if (!wmm_enabled) {
322 		/* If WMM is disabled all traffic goes as BE traffic */
323 		usr_pri = 0;
324 	} else {
325 		hdr_size = sizeof(struct ethhdr);
326 
327 		llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap +
328 							 sizeof(struct
329 								wmi_data_hdr) +
330 							 meta_size + hdr_size);
331 
332 		if (llc_hdr->eth_type == htons(ip_type)) {
333 			/*
334 			 * Extract the endpoint info from the TOS field
335 			 * in the IP header.
336 			 */
337 			usr_pri =
338 			   ath6kl_wmi_determine_user_priority(((u8 *) llc_hdr) +
339 					sizeof(struct ath6kl_llc_snap_hdr),
340 					layer2_priority);
341 		} else {
342 			usr_pri = layer2_priority & 0x7;
343 		}
344 
345 		/*
346 		 * Queue the EAPOL frames in the same WMM_AC_VO queue
347 		 * as that of management frames.
348 		 */
349 		if (skb->protocol == cpu_to_be16(ETH_P_PAE))
350 			usr_pri = WMI_VOICE_USER_PRIORITY;
351 	}
352 
353 	/*
354 	 * workaround for WMM S5
355 	 *
356 	 * FIXME: wmi->traffic_class is always 100 so this test doesn't
357 	 * make sense
358 	 */
359 	if ((wmi->traffic_class == WMM_AC_VI) &&
360 	    ((usr_pri == 5) || (usr_pri == 4)))
361 		usr_pri = 1;
362 
363 	/* Convert user priority to traffic class */
364 	traffic_class = up_to_ac[usr_pri & 0x7];
365 
366 	wmi_data_hdr_set_up(data_hdr, usr_pri);
367 
368 	spin_lock_bh(&wmi->lock);
369 	stream_exist = wmi->fat_pipe_exist;
370 	spin_unlock_bh(&wmi->lock);
371 
372 	if (!(stream_exist & (1 << traffic_class))) {
373 		memset(&cmd, 0, sizeof(cmd));
374 		cmd.traffic_class = traffic_class;
375 		cmd.user_pri = usr_pri;
376 		cmd.inactivity_int =
377 			cpu_to_le32(WMI_IMPLICIT_PSTREAM_INACTIVITY_INT);
378 		/* Implicit streams are created with TSID 0xFF */
379 		cmd.tsid = WMI_IMPLICIT_PSTREAM;
380 		ath6kl_wmi_create_pstream_cmd(wmi, if_idx, &cmd);
381 	}
382 
383 	*ac = traffic_class;
384 
385 	return 0;
386 }
387 
388 int ath6kl_wmi_dot11_hdr_remove(struct wmi *wmi, struct sk_buff *skb)
389 {
390 	struct ieee80211_hdr_3addr *pwh, wh;
391 	struct ath6kl_llc_snap_hdr *llc_hdr;
392 	struct ethhdr eth_hdr;
393 	u32 hdr_size;
394 	u8 *datap;
395 	__le16 sub_type;
396 
397 	if (WARN_ON(skb == NULL))
398 		return -EINVAL;
399 
400 	datap = skb->data;
401 	pwh = (struct ieee80211_hdr_3addr *) datap;
402 
403 	sub_type = pwh->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE);
404 
405 	memcpy((u8 *) &wh, datap, sizeof(struct ieee80211_hdr_3addr));
406 
407 	/* Strip off the 802.11 header */
408 	if (sub_type == cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
409 		hdr_size = roundup(sizeof(struct ieee80211_qos_hdr),
410 				   sizeof(u32));
411 		skb_pull(skb, hdr_size);
412 	} else if (sub_type == cpu_to_le16(IEEE80211_STYPE_DATA)) {
413 		skb_pull(skb, sizeof(struct ieee80211_hdr_3addr));
414 	}
415 
416 	datap = skb->data;
417 	llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap);
418 
419 	memset(&eth_hdr, 0, sizeof(eth_hdr));
420 	eth_hdr.h_proto = llc_hdr->eth_type;
421 
422 	switch ((le16_to_cpu(wh.frame_control)) &
423 		(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
424 	case IEEE80211_FCTL_TODS:
425 		memcpy(eth_hdr.h_dest, wh.addr3, ETH_ALEN);
426 		memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
427 		break;
428 	case IEEE80211_FCTL_FROMDS:
429 		memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
430 		memcpy(eth_hdr.h_source, wh.addr3, ETH_ALEN);
431 		break;
432 	case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS:
433 		break;
434 	default:
435 		memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
436 		memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
437 		break;
438 	}
439 
440 	skb_pull(skb, sizeof(struct ath6kl_llc_snap_hdr));
441 	skb_push(skb, sizeof(eth_hdr));
442 
443 	datap = skb->data;
444 
445 	memcpy(datap, &eth_hdr, sizeof(eth_hdr));
446 
447 	return 0;
448 }
449 
450 /*
451  * Performs 802.3 to DIX encapsulation for received packets.
452  * Assumes the entire 802.3 header is contiguous.
453  */
454 int ath6kl_wmi_dot3_2_dix(struct sk_buff *skb)
455 {
456 	struct ath6kl_llc_snap_hdr *llc_hdr;
457 	struct ethhdr eth_hdr;
458 	u8 *datap;
459 
460 	if (WARN_ON(skb == NULL))
461 		return -EINVAL;
462 
463 	datap = skb->data;
464 
465 	memcpy(&eth_hdr, datap, sizeof(eth_hdr));
466 
467 	llc_hdr = (struct ath6kl_llc_snap_hdr *) (datap + sizeof(eth_hdr));
468 	eth_hdr.h_proto = llc_hdr->eth_type;
469 
470 	skb_pull(skb, sizeof(struct ath6kl_llc_snap_hdr));
471 	datap = skb->data;
472 
473 	memcpy(datap, &eth_hdr, sizeof(eth_hdr));
474 
475 	return 0;
476 }
477 
478 static int ath6kl_wmi_tx_complete_event_rx(u8 *datap, int len)
479 {
480 	struct tx_complete_msg_v1 *msg_v1;
481 	struct wmi_tx_complete_event *evt;
482 	int index;
483 	u16 size;
484 
485 	evt = (struct wmi_tx_complete_event *) datap;
486 
487 	ath6kl_dbg(ATH6KL_DBG_WMI, "comp: %d %d %d\n",
488 		   evt->num_msg, evt->msg_len, evt->msg_type);
489 
490 	for (index = 0; index < evt->num_msg; index++) {
491 		size = sizeof(struct wmi_tx_complete_event) +
492 		    (index * sizeof(struct tx_complete_msg_v1));
493 		msg_v1 = (struct tx_complete_msg_v1 *)(datap + size);
494 
495 		ath6kl_dbg(ATH6KL_DBG_WMI, "msg: %d %d %d %d\n",
496 			   msg_v1->status, msg_v1->pkt_id,
497 			   msg_v1->rate_idx, msg_v1->ack_failures);
498 	}
499 
500 	return 0;
501 }
502 
503 static int ath6kl_wmi_remain_on_chnl_event_rx(struct wmi *wmi, u8 *datap,
504 					      int len, struct ath6kl_vif *vif)
505 {
506 	struct wmi_remain_on_chnl_event *ev;
507 	u32 freq;
508 	u32 dur;
509 	struct ieee80211_channel *chan;
510 	struct ath6kl *ar = wmi->parent_dev;
511 	u32 id;
512 
513 	if (len < sizeof(*ev))
514 		return -EINVAL;
515 
516 	ev = (struct wmi_remain_on_chnl_event *) datap;
517 	freq = le32_to_cpu(ev->freq);
518 	dur = le32_to_cpu(ev->duration);
519 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl: freq=%u dur=%u\n",
520 		   freq, dur);
521 	chan = ieee80211_get_channel(ar->wiphy, freq);
522 	if (!chan) {
523 		ath6kl_dbg(ATH6KL_DBG_WMI,
524 			   "remain_on_chnl: Unknown channel (freq=%u)\n",
525 			   freq);
526 		return -EINVAL;
527 	}
528 	id = vif->last_roc_id;
529 	cfg80211_ready_on_channel(&vif->wdev, id, chan,
530 				  dur, GFP_ATOMIC);
531 
532 	return 0;
533 }
534 
535 static int ath6kl_wmi_cancel_remain_on_chnl_event_rx(struct wmi *wmi,
536 						     u8 *datap, int len,
537 						     struct ath6kl_vif *vif)
538 {
539 	struct wmi_cancel_remain_on_chnl_event *ev;
540 	u32 freq;
541 	u32 dur;
542 	struct ieee80211_channel *chan;
543 	struct ath6kl *ar = wmi->parent_dev;
544 	u32 id;
545 
546 	if (len < sizeof(*ev))
547 		return -EINVAL;
548 
549 	ev = (struct wmi_cancel_remain_on_chnl_event *) datap;
550 	freq = le32_to_cpu(ev->freq);
551 	dur = le32_to_cpu(ev->duration);
552 	ath6kl_dbg(ATH6KL_DBG_WMI,
553 		   "cancel_remain_on_chnl: freq=%u dur=%u status=%u\n",
554 		   freq, dur, ev->status);
555 	chan = ieee80211_get_channel(ar->wiphy, freq);
556 	if (!chan) {
557 		ath6kl_dbg(ATH6KL_DBG_WMI,
558 			   "cancel_remain_on_chnl: Unknown channel (freq=%u)\n",
559 			   freq);
560 		return -EINVAL;
561 	}
562 	if (vif->last_cancel_roc_id &&
563 	    vif->last_cancel_roc_id + 1 == vif->last_roc_id)
564 		id = vif->last_cancel_roc_id; /* event for cancel command */
565 	else
566 		id = vif->last_roc_id; /* timeout on uncanceled r-o-c */
567 	vif->last_cancel_roc_id = 0;
568 	cfg80211_remain_on_channel_expired(&vif->wdev, id, chan, GFP_ATOMIC);
569 
570 	return 0;
571 }
572 
573 static int ath6kl_wmi_tx_status_event_rx(struct wmi *wmi, u8 *datap, int len,
574 					 struct ath6kl_vif *vif)
575 {
576 	struct wmi_tx_status_event *ev;
577 	u32 id;
578 
579 	if (len < sizeof(*ev))
580 		return -EINVAL;
581 
582 	ev = (struct wmi_tx_status_event *) datap;
583 	id = le32_to_cpu(ev->id);
584 	ath6kl_dbg(ATH6KL_DBG_WMI, "tx_status: id=%x ack_status=%u\n",
585 		   id, ev->ack_status);
586 	if (wmi->last_mgmt_tx_frame) {
587 		cfg80211_mgmt_tx_status(&vif->wdev, id,
588 					wmi->last_mgmt_tx_frame,
589 					wmi->last_mgmt_tx_frame_len,
590 					!!ev->ack_status, GFP_ATOMIC);
591 		kfree(wmi->last_mgmt_tx_frame);
592 		wmi->last_mgmt_tx_frame = NULL;
593 		wmi->last_mgmt_tx_frame_len = 0;
594 	}
595 
596 	return 0;
597 }
598 
599 static int ath6kl_wmi_rx_probe_req_event_rx(struct wmi *wmi, u8 *datap, int len,
600 					    struct ath6kl_vif *vif)
601 {
602 	struct wmi_p2p_rx_probe_req_event *ev;
603 	u32 freq;
604 	u16 dlen;
605 
606 	if (len < sizeof(*ev))
607 		return -EINVAL;
608 
609 	ev = (struct wmi_p2p_rx_probe_req_event *) datap;
610 	freq = le32_to_cpu(ev->freq);
611 	dlen = le16_to_cpu(ev->len);
612 	if (datap + len < ev->data + dlen) {
613 		ath6kl_err("invalid wmi_p2p_rx_probe_req_event: len=%d dlen=%u\n",
614 			   len, dlen);
615 		return -EINVAL;
616 	}
617 	ath6kl_dbg(ATH6KL_DBG_WMI,
618 		   "rx_probe_req: len=%u freq=%u probe_req_report=%d\n",
619 		   dlen, freq, vif->probe_req_report);
620 
621 	if (vif->probe_req_report || vif->nw_type == AP_NETWORK)
622 		cfg80211_rx_mgmt(&vif->wdev, freq, 0, ev->data, dlen, 0);
623 
624 	return 0;
625 }
626 
627 static int ath6kl_wmi_p2p_capabilities_event_rx(u8 *datap, int len)
628 {
629 	struct wmi_p2p_capabilities_event *ev;
630 	u16 dlen;
631 
632 	if (len < sizeof(*ev))
633 		return -EINVAL;
634 
635 	ev = (struct wmi_p2p_capabilities_event *) datap;
636 	dlen = le16_to_cpu(ev->len);
637 	ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_capab: len=%u\n", dlen);
638 
639 	return 0;
640 }
641 
642 static int ath6kl_wmi_rx_action_event_rx(struct wmi *wmi, u8 *datap, int len,
643 					 struct ath6kl_vif *vif)
644 {
645 	struct wmi_rx_action_event *ev;
646 	u32 freq;
647 	u16 dlen;
648 
649 	if (len < sizeof(*ev))
650 		return -EINVAL;
651 
652 	ev = (struct wmi_rx_action_event *) datap;
653 	freq = le32_to_cpu(ev->freq);
654 	dlen = le16_to_cpu(ev->len);
655 	if (datap + len < ev->data + dlen) {
656 		ath6kl_err("invalid wmi_rx_action_event: len=%d dlen=%u\n",
657 			   len, dlen);
658 		return -EINVAL;
659 	}
660 	ath6kl_dbg(ATH6KL_DBG_WMI, "rx_action: len=%u freq=%u\n", dlen, freq);
661 	cfg80211_rx_mgmt(&vif->wdev, freq, 0, ev->data, dlen, 0);
662 
663 	return 0;
664 }
665 
666 static int ath6kl_wmi_p2p_info_event_rx(u8 *datap, int len)
667 {
668 	struct wmi_p2p_info_event *ev;
669 	u32 flags;
670 	u16 dlen;
671 
672 	if (len < sizeof(*ev))
673 		return -EINVAL;
674 
675 	ev = (struct wmi_p2p_info_event *) datap;
676 	flags = le32_to_cpu(ev->info_req_flags);
677 	dlen = le16_to_cpu(ev->len);
678 	ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: flags=%x len=%d\n", flags, dlen);
679 
680 	if (flags & P2P_FLAG_CAPABILITIES_REQ) {
681 		struct wmi_p2p_capabilities *cap;
682 		if (dlen < sizeof(*cap))
683 			return -EINVAL;
684 		cap = (struct wmi_p2p_capabilities *) ev->data;
685 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: GO Power Save = %d\n",
686 			   cap->go_power_save);
687 	}
688 
689 	if (flags & P2P_FLAG_MACADDR_REQ) {
690 		struct wmi_p2p_macaddr *mac;
691 		if (dlen < sizeof(*mac))
692 			return -EINVAL;
693 		mac = (struct wmi_p2p_macaddr *) ev->data;
694 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: MAC Address = %pM\n",
695 			   mac->mac_addr);
696 	}
697 
698 	if (flags & P2P_FLAG_HMODEL_REQ) {
699 		struct wmi_p2p_hmodel *mod;
700 		if (dlen < sizeof(*mod))
701 			return -EINVAL;
702 		mod = (struct wmi_p2p_hmodel *) ev->data;
703 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: P2P Model = %d (%s)\n",
704 			   mod->p2p_model,
705 			   mod->p2p_model ? "host" : "firmware");
706 	}
707 	return 0;
708 }
709 
710 static inline struct sk_buff *ath6kl_wmi_get_new_buf(u32 size)
711 {
712 	struct sk_buff *skb;
713 
714 	skb = ath6kl_buf_alloc(size);
715 	if (!skb)
716 		return NULL;
717 
718 	skb_put(skb, size);
719 	if (size)
720 		memset(skb->data, 0, size);
721 
722 	return skb;
723 }
724 
725 /* Send a "simple" wmi command -- one with no arguments */
726 static int ath6kl_wmi_simple_cmd(struct wmi *wmi, u8 if_idx,
727 				 enum wmi_cmd_id cmd_id)
728 {
729 	struct sk_buff *skb;
730 	int ret;
731 
732 	skb = ath6kl_wmi_get_new_buf(0);
733 	if (!skb)
734 		return -ENOMEM;
735 
736 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, cmd_id, NO_SYNC_WMIFLAG);
737 
738 	return ret;
739 }
740 
741 static int ath6kl_wmi_ready_event_rx(struct wmi *wmi, u8 *datap, int len)
742 {
743 	struct wmi_ready_event_2 *ev = (struct wmi_ready_event_2 *) datap;
744 
745 	if (len < sizeof(struct wmi_ready_event_2))
746 		return -EINVAL;
747 
748 	ath6kl_ready_event(wmi->parent_dev, ev->mac_addr,
749 			   le32_to_cpu(ev->sw_version),
750 			   le32_to_cpu(ev->abi_version), ev->phy_cap);
751 
752 	return 0;
753 }
754 
755 /*
756  * Mechanism to modify the roaming behavior in the firmware. The lower rssi
757  * at which the station has to roam can be passed with
758  * WMI_SET_LRSSI_SCAN_PARAMS. Subtract 96 from RSSI to get the signal level
759  * in dBm.
760  */
761 int ath6kl_wmi_set_roam_lrssi_cmd(struct wmi *wmi, u8 lrssi)
762 {
763 	struct sk_buff *skb;
764 	struct roam_ctrl_cmd *cmd;
765 
766 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
767 	if (!skb)
768 		return -ENOMEM;
769 
770 	cmd = (struct roam_ctrl_cmd *) skb->data;
771 
772 	cmd->info.params.lrssi_scan_period = cpu_to_le16(DEF_LRSSI_SCAN_PERIOD);
773 	cmd->info.params.lrssi_scan_threshold = a_cpu_to_sle16(lrssi +
774 						       DEF_SCAN_FOR_ROAM_INTVL);
775 	cmd->info.params.lrssi_roam_threshold = a_cpu_to_sle16(lrssi);
776 	cmd->info.params.roam_rssi_floor = DEF_LRSSI_ROAM_FLOOR;
777 	cmd->roam_ctrl = WMI_SET_LRSSI_SCAN_PARAMS;
778 
779 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
780 			    NO_SYNC_WMIFLAG);
781 }
782 
783 int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid)
784 {
785 	struct sk_buff *skb;
786 	struct roam_ctrl_cmd *cmd;
787 
788 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
789 	if (!skb)
790 		return -ENOMEM;
791 
792 	cmd = (struct roam_ctrl_cmd *) skb->data;
793 
794 	memcpy(cmd->info.bssid, bssid, ETH_ALEN);
795 	cmd->roam_ctrl = WMI_FORCE_ROAM;
796 
797 	ath6kl_dbg(ATH6KL_DBG_WMI, "force roam to %pM\n", bssid);
798 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
799 				   NO_SYNC_WMIFLAG);
800 }
801 
802 int ath6kl_wmi_ap_set_beacon_intvl_cmd(struct wmi *wmi, u8 if_idx,
803 				       u32 beacon_intvl)
804 {
805 	struct sk_buff *skb;
806 	struct set_beacon_int_cmd *cmd;
807 
808 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
809 	if (!skb)
810 		return -ENOMEM;
811 
812 	cmd = (struct set_beacon_int_cmd *) skb->data;
813 
814 	cmd->beacon_intvl = cpu_to_le32(beacon_intvl);
815 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
816 				   WMI_SET_BEACON_INT_CMDID, NO_SYNC_WMIFLAG);
817 }
818 
819 int ath6kl_wmi_ap_set_dtim_cmd(struct wmi *wmi, u8 if_idx, u32 dtim_period)
820 {
821 	struct sk_buff *skb;
822 	struct set_dtim_cmd *cmd;
823 
824 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
825 	if (!skb)
826 		return -ENOMEM;
827 
828 	cmd = (struct set_dtim_cmd *) skb->data;
829 
830 	cmd->dtim_period = cpu_to_le32(dtim_period);
831 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
832 				   WMI_AP_SET_DTIM_CMDID, NO_SYNC_WMIFLAG);
833 }
834 
835 int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode)
836 {
837 	struct sk_buff *skb;
838 	struct roam_ctrl_cmd *cmd;
839 
840 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
841 	if (!skb)
842 		return -ENOMEM;
843 
844 	cmd = (struct roam_ctrl_cmd *) skb->data;
845 
846 	cmd->info.roam_mode = mode;
847 	cmd->roam_ctrl = WMI_SET_ROAM_MODE;
848 
849 	ath6kl_dbg(ATH6KL_DBG_WMI, "set roam mode %d\n", mode);
850 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
851 				   NO_SYNC_WMIFLAG);
852 }
853 
854 static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len,
855 				       struct ath6kl_vif *vif)
856 {
857 	struct wmi_connect_event *ev;
858 	u8 *pie, *peie;
859 
860 	if (len < sizeof(struct wmi_connect_event))
861 		return -EINVAL;
862 
863 	ev = (struct wmi_connect_event *) datap;
864 
865 	if (vif->nw_type == AP_NETWORK) {
866 		/* AP mode start/STA connected event */
867 		struct net_device *dev = vif->ndev;
868 		if (memcmp(dev->dev_addr, ev->u.ap_bss.bssid, ETH_ALEN) == 0) {
869 			ath6kl_dbg(ATH6KL_DBG_WMI,
870 				   "%s: freq %d bssid %pM (AP started)\n",
871 				   __func__, le16_to_cpu(ev->u.ap_bss.ch),
872 				   ev->u.ap_bss.bssid);
873 			ath6kl_connect_ap_mode_bss(
874 				vif, le16_to_cpu(ev->u.ap_bss.ch));
875 		} else {
876 			ath6kl_dbg(ATH6KL_DBG_WMI,
877 				   "%s: aid %u mac_addr %pM auth=%u keymgmt=%u cipher=%u apsd_info=%u (STA connected)\n",
878 				   __func__, ev->u.ap_sta.aid,
879 				   ev->u.ap_sta.mac_addr,
880 				   ev->u.ap_sta.auth,
881 				   ev->u.ap_sta.keymgmt,
882 				   le16_to_cpu(ev->u.ap_sta.cipher),
883 				   ev->u.ap_sta.apsd_info);
884 
885 			ath6kl_connect_ap_mode_sta(
886 				vif, ev->u.ap_sta.aid, ev->u.ap_sta.mac_addr,
887 				ev->u.ap_sta.keymgmt,
888 				le16_to_cpu(ev->u.ap_sta.cipher),
889 				ev->u.ap_sta.auth, ev->assoc_req_len,
890 				ev->assoc_info + ev->beacon_ie_len,
891 				ev->u.ap_sta.apsd_info);
892 		}
893 		return 0;
894 	}
895 
896 	/* STA/IBSS mode connection event */
897 
898 	ath6kl_dbg(ATH6KL_DBG_WMI,
899 		   "wmi event connect freq %d bssid %pM listen_intvl %d beacon_intvl %d type %d\n",
900 		   le16_to_cpu(ev->u.sta.ch), ev->u.sta.bssid,
901 		   le16_to_cpu(ev->u.sta.listen_intvl),
902 		   le16_to_cpu(ev->u.sta.beacon_intvl),
903 		   le32_to_cpu(ev->u.sta.nw_type));
904 
905 	/* Start of assoc rsp IEs */
906 	pie = ev->assoc_info + ev->beacon_ie_len +
907 	      ev->assoc_req_len + (sizeof(u16) * 3); /* capinfo, status, aid */
908 
909 	/* End of assoc rsp IEs */
910 	peie = ev->assoc_info + ev->beacon_ie_len + ev->assoc_req_len +
911 	    ev->assoc_resp_len;
912 
913 	while (pie < peie) {
914 		switch (*pie) {
915 		case WLAN_EID_VENDOR_SPECIFIC:
916 			if (pie[1] > 3 && pie[2] == 0x00 && pie[3] == 0x50 &&
917 			    pie[4] == 0xf2 && pie[5] == WMM_OUI_TYPE) {
918 				/* WMM OUT (00:50:F2) */
919 				if (pie[1] > 5 &&
920 				    pie[6] == WMM_PARAM_OUI_SUBTYPE)
921 					wmi->is_wmm_enabled = true;
922 			}
923 			break;
924 		}
925 
926 		if (wmi->is_wmm_enabled)
927 			break;
928 
929 		pie += pie[1] + 2;
930 	}
931 
932 	ath6kl_connect_event(vif, le16_to_cpu(ev->u.sta.ch),
933 			     ev->u.sta.bssid,
934 			     le16_to_cpu(ev->u.sta.listen_intvl),
935 			     le16_to_cpu(ev->u.sta.beacon_intvl),
936 			     le32_to_cpu(ev->u.sta.nw_type),
937 			     ev->beacon_ie_len, ev->assoc_req_len,
938 			     ev->assoc_resp_len, ev->assoc_info);
939 
940 	return 0;
941 }
942 
943 static struct country_code_to_enum_rd *
944 ath6kl_regd_find_country(u16 countryCode)
945 {
946 	int i;
947 
948 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
949 		if (allCountries[i].countryCode == countryCode)
950 			return &allCountries[i];
951 	}
952 
953 	return NULL;
954 }
955 
956 static struct reg_dmn_pair_mapping *
957 ath6kl_get_regpair(u16 regdmn)
958 {
959 	int i;
960 
961 	if (regdmn == NO_ENUMRD)
962 		return NULL;
963 
964 	for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) {
965 		if (regDomainPairs[i].reg_domain == regdmn)
966 			return &regDomainPairs[i];
967 	}
968 
969 	return NULL;
970 }
971 
972 static struct country_code_to_enum_rd *
973 ath6kl_regd_find_country_by_rd(u16 regdmn)
974 {
975 	int i;
976 
977 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
978 		if (allCountries[i].regDmnEnum == regdmn)
979 			return &allCountries[i];
980 	}
981 
982 	return NULL;
983 }
984 
985 static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len)
986 {
987 	struct ath6kl_wmi_regdomain *ev;
988 	struct country_code_to_enum_rd *country = NULL;
989 	struct reg_dmn_pair_mapping *regpair = NULL;
990 	char alpha2[2];
991 	u32 reg_code;
992 
993 	ev = (struct ath6kl_wmi_regdomain *) datap;
994 	reg_code = le32_to_cpu(ev->reg_code);
995 
996 	if ((reg_code >> ATH6KL_COUNTRY_RD_SHIFT) & COUNTRY_ERD_FLAG) {
997 		country = ath6kl_regd_find_country((u16) reg_code);
998 	} else if (!(((u16) reg_code & WORLD_SKU_MASK) == WORLD_SKU_PREFIX)) {
999 		regpair = ath6kl_get_regpair((u16) reg_code);
1000 		country = ath6kl_regd_find_country_by_rd((u16) reg_code);
1001 		if (regpair)
1002 			ath6kl_dbg(ATH6KL_DBG_WMI, "Regpair used: 0x%0x\n",
1003 				   regpair->reg_domain);
1004 		else
1005 			ath6kl_warn("Regpair not found reg_code 0x%0x\n",
1006 				    reg_code);
1007 	}
1008 
1009 	if (country && wmi->parent_dev->wiphy_registered) {
1010 		alpha2[0] = country->isoName[0];
1011 		alpha2[1] = country->isoName[1];
1012 
1013 		regulatory_hint(wmi->parent_dev->wiphy, alpha2);
1014 
1015 		ath6kl_dbg(ATH6KL_DBG_WMI, "Country alpha2 being used: %c%c\n",
1016 			   alpha2[0], alpha2[1]);
1017 	}
1018 }
1019 
1020 static int ath6kl_wmi_disconnect_event_rx(struct wmi *wmi, u8 *datap, int len,
1021 					  struct ath6kl_vif *vif)
1022 {
1023 	struct wmi_disconnect_event *ev;
1024 	wmi->traffic_class = 100;
1025 
1026 	if (len < sizeof(struct wmi_disconnect_event))
1027 		return -EINVAL;
1028 
1029 	ev = (struct wmi_disconnect_event *) datap;
1030 
1031 	ath6kl_dbg(ATH6KL_DBG_WMI,
1032 		   "wmi event disconnect proto_reason %d bssid %pM wmi_reason %d assoc_resp_len %d\n",
1033 		   le16_to_cpu(ev->proto_reason_status), ev->bssid,
1034 		   ev->disconn_reason, ev->assoc_resp_len);
1035 
1036 	wmi->is_wmm_enabled = false;
1037 
1038 	ath6kl_disconnect_event(vif, ev->disconn_reason,
1039 				ev->bssid, ev->assoc_resp_len, ev->assoc_info,
1040 				le16_to_cpu(ev->proto_reason_status));
1041 
1042 	return 0;
1043 }
1044 
1045 static int ath6kl_wmi_peer_node_event_rx(struct wmi *wmi, u8 *datap, int len)
1046 {
1047 	struct wmi_peer_node_event *ev;
1048 
1049 	if (len < sizeof(struct wmi_peer_node_event))
1050 		return -EINVAL;
1051 
1052 	ev = (struct wmi_peer_node_event *) datap;
1053 
1054 	if (ev->event_code == PEER_NODE_JOIN_EVENT)
1055 		ath6kl_dbg(ATH6KL_DBG_WMI, "joined node with mac addr: %pM\n",
1056 			   ev->peer_mac_addr);
1057 	else if (ev->event_code == PEER_NODE_LEAVE_EVENT)
1058 		ath6kl_dbg(ATH6KL_DBG_WMI, "left node with mac addr: %pM\n",
1059 			   ev->peer_mac_addr);
1060 
1061 	return 0;
1062 }
1063 
1064 static int ath6kl_wmi_tkip_micerr_event_rx(struct wmi *wmi, u8 *datap, int len,
1065 					   struct ath6kl_vif *vif)
1066 {
1067 	struct wmi_tkip_micerr_event *ev;
1068 
1069 	if (len < sizeof(struct wmi_tkip_micerr_event))
1070 		return -EINVAL;
1071 
1072 	ev = (struct wmi_tkip_micerr_event *) datap;
1073 
1074 	ath6kl_tkip_micerr_event(vif, ev->key_id, ev->is_mcast);
1075 
1076 	return 0;
1077 }
1078 
1079 void ath6kl_wmi_sscan_timer(struct timer_list *t)
1080 {
1081 	struct ath6kl_vif *vif = from_timer(vif, t, sched_scan_timer);
1082 
1083 	cfg80211_sched_scan_results(vif->ar->wiphy, 0);
1084 }
1085 
1086 static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len,
1087 				       struct ath6kl_vif *vif)
1088 {
1089 	struct wmi_bss_info_hdr2 *bih;
1090 	u8 *buf;
1091 	struct ieee80211_channel *channel;
1092 	struct ath6kl *ar = wmi->parent_dev;
1093 	struct cfg80211_bss *bss;
1094 
1095 	if (len <= sizeof(struct wmi_bss_info_hdr2))
1096 		return -EINVAL;
1097 
1098 	bih = (struct wmi_bss_info_hdr2 *) datap;
1099 	buf = datap + sizeof(struct wmi_bss_info_hdr2);
1100 	len -= sizeof(struct wmi_bss_info_hdr2);
1101 
1102 	ath6kl_dbg(ATH6KL_DBG_WMI,
1103 		   "bss info evt - ch %u, snr %d, rssi %d, bssid \"%pM\" "
1104 		   "frame_type=%d\n",
1105 		   bih->ch, bih->snr, bih->snr - 95, bih->bssid,
1106 		   bih->frame_type);
1107 
1108 	if (bih->frame_type != BEACON_FTYPE &&
1109 	    bih->frame_type != PROBERESP_FTYPE)
1110 		return 0; /* Only update BSS table for now */
1111 
1112 	if (bih->frame_type == BEACON_FTYPE &&
1113 	    test_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags)) {
1114 		clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
1115 		ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1116 					 NONE_BSS_FILTER, 0);
1117 	}
1118 
1119 	channel = ieee80211_get_channel(ar->wiphy, le16_to_cpu(bih->ch));
1120 	if (channel == NULL)
1121 		return -EINVAL;
1122 
1123 	if (len < 8 + 2 + 2)
1124 		return -EINVAL;
1125 
1126 	if (bih->frame_type == BEACON_FTYPE &&
1127 	    test_bit(CONNECTED, &vif->flags) &&
1128 	    memcmp(bih->bssid, vif->bssid, ETH_ALEN) == 0) {
1129 		const u8 *tim;
1130 		tim = cfg80211_find_ie(WLAN_EID_TIM, buf + 8 + 2 + 2,
1131 				       len - 8 - 2 - 2);
1132 		if (tim && tim[1] >= 2) {
1133 			vif->assoc_bss_dtim_period = tim[3];
1134 			set_bit(DTIM_PERIOD_AVAIL, &vif->flags);
1135 		}
1136 	}
1137 
1138 	bss = cfg80211_inform_bss(ar->wiphy, channel,
1139 				  bih->frame_type == BEACON_FTYPE ?
1140 					CFG80211_BSS_FTYPE_BEACON :
1141 					CFG80211_BSS_FTYPE_PRESP,
1142 				  bih->bssid, get_unaligned_le64((__le64 *)buf),
1143 				  get_unaligned_le16(((__le16 *)buf) + 5),
1144 				  get_unaligned_le16(((__le16 *)buf) + 4),
1145 				  buf + 8 + 2 + 2, len - 8 - 2 - 2,
1146 				  (bih->snr - 95) * 100, GFP_ATOMIC);
1147 	if (bss == NULL)
1148 		return -ENOMEM;
1149 	cfg80211_put_bss(ar->wiphy, bss);
1150 
1151 	/*
1152 	 * Firmware doesn't return any event when scheduled scan has
1153 	 * finished, so we need to use a timer to find out when there are
1154 	 * no more results.
1155 	 *
1156 	 * The timer is started from the first bss info received, otherwise
1157 	 * the timer would not ever fire if the scan interval is short
1158 	 * enough.
1159 	 */
1160 	if (test_bit(SCHED_SCANNING, &vif->flags) &&
1161 	    !timer_pending(&vif->sched_scan_timer)) {
1162 		mod_timer(&vif->sched_scan_timer, jiffies +
1163 			  msecs_to_jiffies(ATH6KL_SCHED_SCAN_RESULT_DELAY));
1164 	}
1165 
1166 	return 0;
1167 }
1168 
1169 /* Inactivity timeout of a fatpipe(pstream) at the target */
1170 static int ath6kl_wmi_pstream_timeout_event_rx(struct wmi *wmi, u8 *datap,
1171 					       int len)
1172 {
1173 	struct wmi_pstream_timeout_event *ev;
1174 
1175 	if (len < sizeof(struct wmi_pstream_timeout_event))
1176 		return -EINVAL;
1177 
1178 	ev = (struct wmi_pstream_timeout_event *) datap;
1179 	if (ev->traffic_class >= WMM_NUM_AC) {
1180 		ath6kl_err("invalid traffic class: %d\n", ev->traffic_class);
1181 		return -EINVAL;
1182 	}
1183 
1184 	/*
1185 	 * When the pstream (fat pipe == AC) timesout, it means there were
1186 	 * no thinStreams within this pstream & it got implicitly created
1187 	 * due to data flow on this AC. We start the inactivity timer only
1188 	 * for implicitly created pstream. Just reset the host state.
1189 	 */
1190 	spin_lock_bh(&wmi->lock);
1191 	wmi->stream_exist_for_ac[ev->traffic_class] = 0;
1192 	wmi->fat_pipe_exist &= ~(1 << ev->traffic_class);
1193 	spin_unlock_bh(&wmi->lock);
1194 
1195 	/* Indicate inactivity to driver layer for this fatpipe (pstream) */
1196 	ath6kl_indicate_tx_activity(wmi->parent_dev, ev->traffic_class, false);
1197 
1198 	return 0;
1199 }
1200 
1201 static int ath6kl_wmi_bitrate_reply_rx(struct wmi *wmi, u8 *datap, int len)
1202 {
1203 	struct wmi_bit_rate_reply *reply;
1204 	u32 index;
1205 
1206 	if (len < sizeof(struct wmi_bit_rate_reply))
1207 		return -EINVAL;
1208 
1209 	reply = (struct wmi_bit_rate_reply *) datap;
1210 
1211 	ath6kl_dbg(ATH6KL_DBG_WMI, "rateindex %d\n", reply->rate_index);
1212 
1213 	if (reply->rate_index != (s8) RATE_AUTO) {
1214 		index = reply->rate_index & 0x7f;
1215 		if (WARN_ON_ONCE(index > (RATE_MCS_7_40 + 1)))
1216 			return -EINVAL;
1217 	}
1218 
1219 	ath6kl_wakeup_event(wmi->parent_dev);
1220 
1221 	return 0;
1222 }
1223 
1224 static int ath6kl_wmi_test_rx(struct wmi *wmi, u8 *datap, int len)
1225 {
1226 	ath6kl_tm_rx_event(wmi->parent_dev, datap, len);
1227 
1228 	return 0;
1229 }
1230 
1231 static int ath6kl_wmi_ratemask_reply_rx(struct wmi *wmi, u8 *datap, int len)
1232 {
1233 	if (len < sizeof(struct wmi_fix_rates_reply))
1234 		return -EINVAL;
1235 
1236 	ath6kl_wakeup_event(wmi->parent_dev);
1237 
1238 	return 0;
1239 }
1240 
1241 static int ath6kl_wmi_ch_list_reply_rx(struct wmi *wmi, u8 *datap, int len)
1242 {
1243 	if (len < sizeof(struct wmi_channel_list_reply))
1244 		return -EINVAL;
1245 
1246 	ath6kl_wakeup_event(wmi->parent_dev);
1247 
1248 	return 0;
1249 }
1250 
1251 static int ath6kl_wmi_tx_pwr_reply_rx(struct wmi *wmi, u8 *datap, int len)
1252 {
1253 	struct wmi_tx_pwr_reply *reply;
1254 
1255 	if (len < sizeof(struct wmi_tx_pwr_reply))
1256 		return -EINVAL;
1257 
1258 	reply = (struct wmi_tx_pwr_reply *) datap;
1259 	ath6kl_txpwr_rx_evt(wmi->parent_dev, reply->dbM);
1260 
1261 	return 0;
1262 }
1263 
1264 static int ath6kl_wmi_keepalive_reply_rx(struct wmi *wmi, u8 *datap, int len)
1265 {
1266 	if (len < sizeof(struct wmi_get_keepalive_cmd))
1267 		return -EINVAL;
1268 
1269 	ath6kl_wakeup_event(wmi->parent_dev);
1270 
1271 	return 0;
1272 }
1273 
1274 static int ath6kl_wmi_scan_complete_rx(struct wmi *wmi, u8 *datap, int len,
1275 				       struct ath6kl_vif *vif)
1276 {
1277 	struct wmi_scan_complete_event *ev;
1278 
1279 	ev = (struct wmi_scan_complete_event *) datap;
1280 
1281 	ath6kl_scan_complete_evt(vif, a_sle32_to_cpu(ev->status));
1282 	wmi->is_probe_ssid = false;
1283 
1284 	return 0;
1285 }
1286 
1287 static int ath6kl_wmi_neighbor_report_event_rx(struct wmi *wmi, u8 *datap,
1288 					       int len, struct ath6kl_vif *vif)
1289 {
1290 	struct wmi_neighbor_report_event *ev;
1291 	u8 i;
1292 
1293 	if (len < sizeof(*ev))
1294 		return -EINVAL;
1295 	ev = (struct wmi_neighbor_report_event *) datap;
1296 	if (struct_size(ev, neighbor, ev->num_neighbors) > len) {
1297 		ath6kl_dbg(ATH6KL_DBG_WMI,
1298 			   "truncated neighbor event (num=%d len=%d)\n",
1299 			   ev->num_neighbors, len);
1300 		return -EINVAL;
1301 	}
1302 	for (i = 0; i < ev->num_neighbors; i++) {
1303 		ath6kl_dbg(ATH6KL_DBG_WMI, "neighbor %d/%d - %pM 0x%x\n",
1304 			   i + 1, ev->num_neighbors, ev->neighbor[i].bssid,
1305 			   ev->neighbor[i].bss_flags);
1306 		cfg80211_pmksa_candidate_notify(vif->ndev, i,
1307 						ev->neighbor[i].bssid,
1308 						!!(ev->neighbor[i].bss_flags &
1309 						   WMI_PREAUTH_CAPABLE_BSS),
1310 						GFP_ATOMIC);
1311 	}
1312 
1313 	return 0;
1314 }
1315 
1316 /*
1317  * Target is reporting a programming error.  This is for
1318  * developer aid only.  Target only checks a few common violations
1319  * and it is responsibility of host to do all error checking.
1320  * Behavior of target after wmi error event is undefined.
1321  * A reset is recommended.
1322  */
1323 static int ath6kl_wmi_error_event_rx(struct wmi *wmi, u8 *datap, int len)
1324 {
1325 	const char *type = "unknown error";
1326 	struct wmi_cmd_error_event *ev;
1327 	ev = (struct wmi_cmd_error_event *) datap;
1328 
1329 	switch (ev->err_code) {
1330 	case INVALID_PARAM:
1331 		type = "invalid parameter";
1332 		break;
1333 	case ILLEGAL_STATE:
1334 		type = "invalid state";
1335 		break;
1336 	case INTERNAL_ERROR:
1337 		type = "internal error";
1338 		break;
1339 	}
1340 
1341 	ath6kl_dbg(ATH6KL_DBG_WMI, "programming error, cmd=%d %s\n",
1342 		   ev->cmd_id, type);
1343 
1344 	return 0;
1345 }
1346 
1347 static int ath6kl_wmi_stats_event_rx(struct wmi *wmi, u8 *datap, int len,
1348 				     struct ath6kl_vif *vif)
1349 {
1350 	ath6kl_tgt_stats_event(vif, datap, len);
1351 
1352 	return 0;
1353 }
1354 
1355 static u8 ath6kl_wmi_get_upper_threshold(s16 rssi,
1356 					 struct sq_threshold_params *sq_thresh,
1357 					 u32 size)
1358 {
1359 	u32 index;
1360 	u8 threshold = (u8) sq_thresh->upper_threshold[size - 1];
1361 
1362 	/* The list is already in sorted order. Get the next lower value */
1363 	for (index = 0; index < size; index++) {
1364 		if (rssi < sq_thresh->upper_threshold[index]) {
1365 			threshold = (u8) sq_thresh->upper_threshold[index];
1366 			break;
1367 		}
1368 	}
1369 
1370 	return threshold;
1371 }
1372 
1373 static u8 ath6kl_wmi_get_lower_threshold(s16 rssi,
1374 					 struct sq_threshold_params *sq_thresh,
1375 					 u32 size)
1376 {
1377 	u32 index;
1378 	u8 threshold = (u8) sq_thresh->lower_threshold[size - 1];
1379 
1380 	/* The list is already in sorted order. Get the next lower value */
1381 	for (index = 0; index < size; index++) {
1382 		if (rssi > sq_thresh->lower_threshold[index]) {
1383 			threshold = (u8) sq_thresh->lower_threshold[index];
1384 			break;
1385 		}
1386 	}
1387 
1388 	return threshold;
1389 }
1390 
1391 static int ath6kl_wmi_send_rssi_threshold_params(struct wmi *wmi,
1392 			struct wmi_rssi_threshold_params_cmd *rssi_cmd)
1393 {
1394 	struct sk_buff *skb;
1395 	struct wmi_rssi_threshold_params_cmd *cmd;
1396 
1397 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1398 	if (!skb)
1399 		return -ENOMEM;
1400 
1401 	cmd = (struct wmi_rssi_threshold_params_cmd *) skb->data;
1402 	memcpy(cmd, rssi_cmd, sizeof(struct wmi_rssi_threshold_params_cmd));
1403 
1404 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_RSSI_THRESHOLD_PARAMS_CMDID,
1405 				   NO_SYNC_WMIFLAG);
1406 }
1407 
1408 static int ath6kl_wmi_rssi_threshold_event_rx(struct wmi *wmi, u8 *datap,
1409 					      int len)
1410 {
1411 	struct wmi_rssi_threshold_event *reply;
1412 	struct wmi_rssi_threshold_params_cmd cmd;
1413 	struct sq_threshold_params *sq_thresh;
1414 	enum wmi_rssi_threshold_val new_threshold;
1415 	u8 upper_rssi_threshold, lower_rssi_threshold;
1416 	s16 rssi;
1417 	int ret;
1418 
1419 	if (len < sizeof(struct wmi_rssi_threshold_event))
1420 		return -EINVAL;
1421 
1422 	reply = (struct wmi_rssi_threshold_event *) datap;
1423 	new_threshold = (enum wmi_rssi_threshold_val) reply->range;
1424 	rssi = a_sle16_to_cpu(reply->rssi);
1425 
1426 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_RSSI];
1427 
1428 	/*
1429 	 * Identify the threshold breached and communicate that to the app.
1430 	 * After that install a new set of thresholds based on the signal
1431 	 * quality reported by the target
1432 	 */
1433 	if (new_threshold) {
1434 		/* Upper threshold breached */
1435 		if (rssi < sq_thresh->upper_threshold[0]) {
1436 			ath6kl_dbg(ATH6KL_DBG_WMI,
1437 				   "spurious upper rssi threshold event: %d\n",
1438 				   rssi);
1439 		} else if ((rssi < sq_thresh->upper_threshold[1]) &&
1440 			   (rssi >= sq_thresh->upper_threshold[0])) {
1441 			new_threshold = WMI_RSSI_THRESHOLD1_ABOVE;
1442 		} else if ((rssi < sq_thresh->upper_threshold[2]) &&
1443 			   (rssi >= sq_thresh->upper_threshold[1])) {
1444 			new_threshold = WMI_RSSI_THRESHOLD2_ABOVE;
1445 		} else if ((rssi < sq_thresh->upper_threshold[3]) &&
1446 			   (rssi >= sq_thresh->upper_threshold[2])) {
1447 			new_threshold = WMI_RSSI_THRESHOLD3_ABOVE;
1448 		} else if ((rssi < sq_thresh->upper_threshold[4]) &&
1449 			   (rssi >= sq_thresh->upper_threshold[3])) {
1450 			new_threshold = WMI_RSSI_THRESHOLD4_ABOVE;
1451 		} else if ((rssi < sq_thresh->upper_threshold[5]) &&
1452 			   (rssi >= sq_thresh->upper_threshold[4])) {
1453 			new_threshold = WMI_RSSI_THRESHOLD5_ABOVE;
1454 		} else if (rssi >= sq_thresh->upper_threshold[5]) {
1455 			new_threshold = WMI_RSSI_THRESHOLD6_ABOVE;
1456 		}
1457 	} else {
1458 		/* Lower threshold breached */
1459 		if (rssi > sq_thresh->lower_threshold[0]) {
1460 			ath6kl_dbg(ATH6KL_DBG_WMI,
1461 				   "spurious lower rssi threshold event: %d %d\n",
1462 				rssi, sq_thresh->lower_threshold[0]);
1463 		} else if ((rssi > sq_thresh->lower_threshold[1]) &&
1464 			   (rssi <= sq_thresh->lower_threshold[0])) {
1465 			new_threshold = WMI_RSSI_THRESHOLD6_BELOW;
1466 		} else if ((rssi > sq_thresh->lower_threshold[2]) &&
1467 			   (rssi <= sq_thresh->lower_threshold[1])) {
1468 			new_threshold = WMI_RSSI_THRESHOLD5_BELOW;
1469 		} else if ((rssi > sq_thresh->lower_threshold[3]) &&
1470 			   (rssi <= sq_thresh->lower_threshold[2])) {
1471 			new_threshold = WMI_RSSI_THRESHOLD4_BELOW;
1472 		} else if ((rssi > sq_thresh->lower_threshold[4]) &&
1473 			   (rssi <= sq_thresh->lower_threshold[3])) {
1474 			new_threshold = WMI_RSSI_THRESHOLD3_BELOW;
1475 		} else if ((rssi > sq_thresh->lower_threshold[5]) &&
1476 			   (rssi <= sq_thresh->lower_threshold[4])) {
1477 			new_threshold = WMI_RSSI_THRESHOLD2_BELOW;
1478 		} else if (rssi <= sq_thresh->lower_threshold[5]) {
1479 			new_threshold = WMI_RSSI_THRESHOLD1_BELOW;
1480 		}
1481 	}
1482 
1483 	/* Calculate and install the next set of thresholds */
1484 	lower_rssi_threshold = ath6kl_wmi_get_lower_threshold(rssi, sq_thresh,
1485 				       sq_thresh->lower_threshold_valid_count);
1486 	upper_rssi_threshold = ath6kl_wmi_get_upper_threshold(rssi, sq_thresh,
1487 				       sq_thresh->upper_threshold_valid_count);
1488 
1489 	/* Issue a wmi command to install the thresholds */
1490 	cmd.thresh_above1_val = a_cpu_to_sle16(upper_rssi_threshold);
1491 	cmd.thresh_below1_val = a_cpu_to_sle16(lower_rssi_threshold);
1492 	cmd.weight = sq_thresh->weight;
1493 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1494 
1495 	ret = ath6kl_wmi_send_rssi_threshold_params(wmi, &cmd);
1496 	if (ret) {
1497 		ath6kl_err("unable to configure rssi thresholds\n");
1498 		return -EIO;
1499 	}
1500 
1501 	return 0;
1502 }
1503 
1504 static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len,
1505 				   struct ath6kl_vif *vif)
1506 {
1507 	struct wmi_cac_event *reply;
1508 	struct ieee80211_tspec_ie *ts;
1509 	u16 active_tsids, tsinfo;
1510 	u8 tsid, index;
1511 	u8 ts_id;
1512 
1513 	if (len < sizeof(struct wmi_cac_event))
1514 		return -EINVAL;
1515 
1516 	reply = (struct wmi_cac_event *) datap;
1517 	if (reply->ac >= WMM_NUM_AC) {
1518 		ath6kl_err("invalid AC: %d\n", reply->ac);
1519 		return -EINVAL;
1520 	}
1521 
1522 	if ((reply->cac_indication == CAC_INDICATION_ADMISSION_RESP) &&
1523 	    (reply->status_code != IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED)) {
1524 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1525 		tsinfo = le16_to_cpu(ts->tsinfo);
1526 		tsid = (tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1527 			IEEE80211_WMM_IE_TSPEC_TID_MASK;
1528 
1529 		ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1530 					      reply->ac, tsid);
1531 	} else if (reply->cac_indication == CAC_INDICATION_NO_RESP) {
1532 		/*
1533 		 * Following assumes that there is only one outstanding
1534 		 * ADDTS request when this event is received
1535 		 */
1536 		spin_lock_bh(&wmi->lock);
1537 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1538 		spin_unlock_bh(&wmi->lock);
1539 
1540 		for (index = 0; index < sizeof(active_tsids) * 8; index++) {
1541 			if ((active_tsids >> index) & 1)
1542 				break;
1543 		}
1544 		if (index < (sizeof(active_tsids) * 8))
1545 			ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1546 						      reply->ac, index);
1547 	}
1548 
1549 	/*
1550 	 * Clear active tsids and Add missing handling
1551 	 * for delete qos stream from AP
1552 	 */
1553 	else if (reply->cac_indication == CAC_INDICATION_DELETE) {
1554 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1555 		tsinfo = le16_to_cpu(ts->tsinfo);
1556 		ts_id = ((tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1557 			 IEEE80211_WMM_IE_TSPEC_TID_MASK);
1558 
1559 		spin_lock_bh(&wmi->lock);
1560 		wmi->stream_exist_for_ac[reply->ac] &= ~(1 << ts_id);
1561 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1562 		spin_unlock_bh(&wmi->lock);
1563 
1564 		/* Indicate stream inactivity to driver layer only if all tsids
1565 		 * within this AC are deleted.
1566 		 */
1567 		if (!active_tsids) {
1568 			ath6kl_indicate_tx_activity(wmi->parent_dev, reply->ac,
1569 						    false);
1570 			wmi->fat_pipe_exist &= ~(1 << reply->ac);
1571 		}
1572 	}
1573 
1574 	return 0;
1575 }
1576 
1577 static int ath6kl_wmi_txe_notify_event_rx(struct wmi *wmi, u8 *datap, int len,
1578 					  struct ath6kl_vif *vif)
1579 {
1580 	struct wmi_txe_notify_event *ev;
1581 	u32 rate, pkts;
1582 
1583 	if (len < sizeof(*ev))
1584 		return -EINVAL;
1585 
1586 	if (vif->nw_type != INFRA_NETWORK ||
1587 	    !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY,
1588 		      vif->ar->fw_capabilities))
1589 		return -EOPNOTSUPP;
1590 
1591 	if (vif->sme_state != SME_CONNECTED)
1592 		return -ENOTCONN;
1593 
1594 	ev = (struct wmi_txe_notify_event *) datap;
1595 	rate = le32_to_cpu(ev->rate);
1596 	pkts = le32_to_cpu(ev->pkts);
1597 
1598 	ath6kl_dbg(ATH6KL_DBG_WMI, "TXE notify event: peer %pM rate %d%% pkts %d intvl %ds\n",
1599 		   vif->bssid, rate, pkts, vif->txe_intvl);
1600 
1601 	cfg80211_cqm_txe_notify(vif->ndev, vif->bssid, pkts,
1602 				rate, vif->txe_intvl, GFP_KERNEL);
1603 
1604 	return 0;
1605 }
1606 
1607 int ath6kl_wmi_set_txe_notify(struct wmi *wmi, u8 idx,
1608 			      u32 rate, u32 pkts, u32 intvl)
1609 {
1610 	struct sk_buff *skb;
1611 	struct wmi_txe_notify_cmd *cmd;
1612 
1613 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1614 	if (!skb)
1615 		return -ENOMEM;
1616 
1617 	cmd = (struct wmi_txe_notify_cmd *) skb->data;
1618 	cmd->rate = cpu_to_le32(rate);
1619 	cmd->pkts = cpu_to_le32(pkts);
1620 	cmd->intvl = cpu_to_le32(intvl);
1621 
1622 	return ath6kl_wmi_cmd_send(wmi, idx, skb, WMI_SET_TXE_NOTIFY_CMDID,
1623 				   NO_SYNC_WMIFLAG);
1624 }
1625 
1626 int ath6kl_wmi_set_rssi_filter_cmd(struct wmi *wmi, u8 if_idx, s8 rssi)
1627 {
1628 	struct sk_buff *skb;
1629 	struct wmi_set_rssi_filter_cmd *cmd;
1630 	int ret;
1631 
1632 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1633 	if (!skb)
1634 		return -ENOMEM;
1635 
1636 	cmd = (struct wmi_set_rssi_filter_cmd *) skb->data;
1637 	cmd->rssi = rssi;
1638 
1639 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_RSSI_FILTER_CMDID,
1640 				  NO_SYNC_WMIFLAG);
1641 	return ret;
1642 }
1643 
1644 static int ath6kl_wmi_send_snr_threshold_params(struct wmi *wmi,
1645 			struct wmi_snr_threshold_params_cmd *snr_cmd)
1646 {
1647 	struct sk_buff *skb;
1648 	struct wmi_snr_threshold_params_cmd *cmd;
1649 
1650 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1651 	if (!skb)
1652 		return -ENOMEM;
1653 
1654 	cmd = (struct wmi_snr_threshold_params_cmd *) skb->data;
1655 	memcpy(cmd, snr_cmd, sizeof(struct wmi_snr_threshold_params_cmd));
1656 
1657 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SNR_THRESHOLD_PARAMS_CMDID,
1658 				   NO_SYNC_WMIFLAG);
1659 }
1660 
1661 static int ath6kl_wmi_snr_threshold_event_rx(struct wmi *wmi, u8 *datap,
1662 					     int len)
1663 {
1664 	struct wmi_snr_threshold_event *reply;
1665 	struct sq_threshold_params *sq_thresh;
1666 	struct wmi_snr_threshold_params_cmd cmd;
1667 	enum wmi_snr_threshold_val new_threshold;
1668 	u8 upper_snr_threshold, lower_snr_threshold;
1669 	s16 snr;
1670 	int ret;
1671 
1672 	if (len < sizeof(struct wmi_snr_threshold_event))
1673 		return -EINVAL;
1674 
1675 	reply = (struct wmi_snr_threshold_event *) datap;
1676 
1677 	new_threshold = (enum wmi_snr_threshold_val) reply->range;
1678 	snr = reply->snr;
1679 
1680 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_SNR];
1681 
1682 	/*
1683 	 * Identify the threshold breached and communicate that to the app.
1684 	 * After that install a new set of thresholds based on the signal
1685 	 * quality reported by the target.
1686 	 */
1687 	if (new_threshold) {
1688 		/* Upper threshold breached */
1689 		if (snr < sq_thresh->upper_threshold[0]) {
1690 			ath6kl_dbg(ATH6KL_DBG_WMI,
1691 				   "spurious upper snr threshold event: %d\n",
1692 				   snr);
1693 		} else if ((snr < sq_thresh->upper_threshold[1]) &&
1694 			   (snr >= sq_thresh->upper_threshold[0])) {
1695 			new_threshold = WMI_SNR_THRESHOLD1_ABOVE;
1696 		} else if ((snr < sq_thresh->upper_threshold[2]) &&
1697 			   (snr >= sq_thresh->upper_threshold[1])) {
1698 			new_threshold = WMI_SNR_THRESHOLD2_ABOVE;
1699 		} else if ((snr < sq_thresh->upper_threshold[3]) &&
1700 			   (snr >= sq_thresh->upper_threshold[2])) {
1701 			new_threshold = WMI_SNR_THRESHOLD3_ABOVE;
1702 		} else if (snr >= sq_thresh->upper_threshold[3]) {
1703 			new_threshold = WMI_SNR_THRESHOLD4_ABOVE;
1704 		}
1705 	} else {
1706 		/* Lower threshold breached */
1707 		if (snr > sq_thresh->lower_threshold[0]) {
1708 			ath6kl_dbg(ATH6KL_DBG_WMI,
1709 				   "spurious lower snr threshold event: %d\n",
1710 				   sq_thresh->lower_threshold[0]);
1711 		} else if ((snr > sq_thresh->lower_threshold[1]) &&
1712 			   (snr <= sq_thresh->lower_threshold[0])) {
1713 			new_threshold = WMI_SNR_THRESHOLD4_BELOW;
1714 		} else if ((snr > sq_thresh->lower_threshold[2]) &&
1715 			   (snr <= sq_thresh->lower_threshold[1])) {
1716 			new_threshold = WMI_SNR_THRESHOLD3_BELOW;
1717 		} else if ((snr > sq_thresh->lower_threshold[3]) &&
1718 			   (snr <= sq_thresh->lower_threshold[2])) {
1719 			new_threshold = WMI_SNR_THRESHOLD2_BELOW;
1720 		} else if (snr <= sq_thresh->lower_threshold[3]) {
1721 			new_threshold = WMI_SNR_THRESHOLD1_BELOW;
1722 		}
1723 	}
1724 
1725 	/* Calculate and install the next set of thresholds */
1726 	lower_snr_threshold = ath6kl_wmi_get_lower_threshold(snr, sq_thresh,
1727 				       sq_thresh->lower_threshold_valid_count);
1728 	upper_snr_threshold = ath6kl_wmi_get_upper_threshold(snr, sq_thresh,
1729 				       sq_thresh->upper_threshold_valid_count);
1730 
1731 	/* Issue a wmi command to install the thresholds */
1732 	cmd.thresh_above1_val = upper_snr_threshold;
1733 	cmd.thresh_below1_val = lower_snr_threshold;
1734 	cmd.weight = sq_thresh->weight;
1735 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1736 
1737 	ath6kl_dbg(ATH6KL_DBG_WMI,
1738 		   "snr: %d, threshold: %d, lower: %d, upper: %d\n",
1739 		   snr, new_threshold,
1740 		   lower_snr_threshold, upper_snr_threshold);
1741 
1742 	ret = ath6kl_wmi_send_snr_threshold_params(wmi, &cmd);
1743 	if (ret) {
1744 		ath6kl_err("unable to configure snr threshold\n");
1745 		return -EIO;
1746 	}
1747 
1748 	return 0;
1749 }
1750 
1751 static int ath6kl_wmi_aplist_event_rx(struct wmi *wmi, u8 *datap, int len)
1752 {
1753 	struct wmi_aplist_event *ev = (struct wmi_aplist_event *) datap;
1754 	struct wmi_ap_info_v1 *ap_info_v1;
1755 	u8 index;
1756 
1757 	if (len < sizeof(struct wmi_aplist_event) ||
1758 	    ev->ap_list_ver != APLIST_VER1)
1759 		return -EINVAL;
1760 
1761 	ap_info_v1 = (struct wmi_ap_info_v1 *) ev->ap_list;
1762 
1763 	ath6kl_dbg(ATH6KL_DBG_WMI,
1764 		   "number of APs in aplist event: %d\n", ev->num_ap);
1765 
1766 	if (len < struct_size(ev, ap_list, ev->num_ap))
1767 		return -EINVAL;
1768 
1769 	/* AP list version 1 contents */
1770 	for (index = 0; index < ev->num_ap; index++) {
1771 		ath6kl_dbg(ATH6KL_DBG_WMI, "AP#%d BSSID %pM Channel %d\n",
1772 			   index, ap_info_v1->bssid, ap_info_v1->channel);
1773 		ap_info_v1++;
1774 	}
1775 
1776 	return 0;
1777 }
1778 
1779 int ath6kl_wmi_cmd_send(struct wmi *wmi, u8 if_idx, struct sk_buff *skb,
1780 			enum wmi_cmd_id cmd_id, enum wmi_sync_flag sync_flag)
1781 {
1782 	struct wmi_cmd_hdr *cmd_hdr;
1783 	enum htc_endpoint_id ep_id = wmi->ep_id;
1784 	int ret;
1785 	u16 info1;
1786 
1787 	if (WARN_ON(skb == NULL ||
1788 		    (if_idx > (wmi->parent_dev->vif_max - 1)))) {
1789 		dev_kfree_skb(skb);
1790 		return -EINVAL;
1791 	}
1792 
1793 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi tx id %d len %d flag %d\n",
1794 		   cmd_id, skb->len, sync_flag);
1795 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi tx ",
1796 			skb->data, skb->len);
1797 
1798 	if (sync_flag >= END_WMIFLAG) {
1799 		dev_kfree_skb(skb);
1800 		return -EINVAL;
1801 	}
1802 
1803 	if ((sync_flag == SYNC_BEFORE_WMIFLAG) ||
1804 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1805 		/*
1806 		 * Make sure all data currently queued is transmitted before
1807 		 * the cmd execution.  Establish a new sync point.
1808 		 */
1809 		ath6kl_wmi_sync_point(wmi, if_idx);
1810 	}
1811 
1812 	skb_push(skb, sizeof(struct wmi_cmd_hdr));
1813 
1814 	cmd_hdr = (struct wmi_cmd_hdr *) skb->data;
1815 	cmd_hdr->cmd_id = cpu_to_le16(cmd_id);
1816 	info1 = if_idx & WMI_CMD_HDR_IF_ID_MASK;
1817 	cmd_hdr->info1 = cpu_to_le16(info1);
1818 
1819 	/* Only for OPT_TX_CMD, use BE endpoint. */
1820 	if (cmd_id == WMI_OPT_TX_FRAME_CMDID) {
1821 		ret = ath6kl_wmi_data_hdr_add(wmi, skb, OPT_MSGTYPE, false,
1822 				WMI_DATA_HDR_DATA_TYPE_802_3, 0, NULL, if_idx);
1823 		if (ret) {
1824 			dev_kfree_skb(skb);
1825 			return ret;
1826 		}
1827 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev, WMM_AC_BE);
1828 	}
1829 
1830 	ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
1831 
1832 	if ((sync_flag == SYNC_AFTER_WMIFLAG) ||
1833 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1834 		/*
1835 		 * Make sure all new data queued waits for the command to
1836 		 * execute. Establish a new sync point.
1837 		 */
1838 		ath6kl_wmi_sync_point(wmi, if_idx);
1839 	}
1840 
1841 	return 0;
1842 }
1843 
1844 int ath6kl_wmi_connect_cmd(struct wmi *wmi, u8 if_idx,
1845 			   enum network_type nw_type,
1846 			   enum dot11_auth_mode dot11_auth_mode,
1847 			   enum auth_mode auth_mode,
1848 			   enum ath6kl_crypto_type pairwise_crypto,
1849 			   u8 pairwise_crypto_len,
1850 			   enum ath6kl_crypto_type group_crypto,
1851 			   u8 group_crypto_len, int ssid_len, u8 *ssid,
1852 			   u8 *bssid, u16 channel, u32 ctrl_flags,
1853 			   u8 nw_subtype)
1854 {
1855 	struct sk_buff *skb;
1856 	struct wmi_connect_cmd *cc;
1857 	int ret;
1858 
1859 	ath6kl_dbg(ATH6KL_DBG_WMI,
1860 		   "wmi connect bssid %pM freq %d flags 0x%x ssid_len %d "
1861 		   "type %d dot11_auth %d auth %d pairwise %d group %d\n",
1862 		   bssid, channel, ctrl_flags, ssid_len, nw_type,
1863 		   dot11_auth_mode, auth_mode, pairwise_crypto, group_crypto);
1864 	ath6kl_dbg_dump(ATH6KL_DBG_WMI, NULL, "ssid ", ssid, ssid_len);
1865 
1866 	wmi->traffic_class = 100;
1867 
1868 	if ((pairwise_crypto == NONE_CRYPT) && (group_crypto != NONE_CRYPT))
1869 		return -EINVAL;
1870 
1871 	if ((pairwise_crypto != NONE_CRYPT) && (group_crypto == NONE_CRYPT))
1872 		return -EINVAL;
1873 
1874 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_connect_cmd));
1875 	if (!skb)
1876 		return -ENOMEM;
1877 
1878 	cc = (struct wmi_connect_cmd *) skb->data;
1879 
1880 	if (ssid_len)
1881 		memcpy(cc->ssid, ssid, ssid_len);
1882 
1883 	cc->ssid_len = ssid_len;
1884 	cc->nw_type = nw_type;
1885 	cc->dot11_auth_mode = dot11_auth_mode;
1886 	cc->auth_mode = auth_mode;
1887 	cc->prwise_crypto_type = pairwise_crypto;
1888 	cc->prwise_crypto_len = pairwise_crypto_len;
1889 	cc->grp_crypto_type = group_crypto;
1890 	cc->grp_crypto_len = group_crypto_len;
1891 	cc->ch = cpu_to_le16(channel);
1892 	cc->ctrl_flags = cpu_to_le32(ctrl_flags);
1893 	cc->nw_subtype = nw_subtype;
1894 
1895 	if (bssid != NULL)
1896 		memcpy(cc->bssid, bssid, ETH_ALEN);
1897 
1898 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CONNECT_CMDID,
1899 				  NO_SYNC_WMIFLAG);
1900 
1901 	return ret;
1902 }
1903 
1904 int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 if_idx, u8 *bssid,
1905 			     u16 channel)
1906 {
1907 	struct sk_buff *skb;
1908 	struct wmi_reconnect_cmd *cc;
1909 	int ret;
1910 
1911 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi reconnect bssid %pM freq %d\n",
1912 		   bssid, channel);
1913 
1914 	wmi->traffic_class = 100;
1915 
1916 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_reconnect_cmd));
1917 	if (!skb)
1918 		return -ENOMEM;
1919 
1920 	cc = (struct wmi_reconnect_cmd *) skb->data;
1921 	cc->channel = cpu_to_le16(channel);
1922 
1923 	if (bssid != NULL)
1924 		memcpy(cc->bssid, bssid, ETH_ALEN);
1925 
1926 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RECONNECT_CMDID,
1927 				  NO_SYNC_WMIFLAG);
1928 
1929 	return ret;
1930 }
1931 
1932 int ath6kl_wmi_disconnect_cmd(struct wmi *wmi, u8 if_idx)
1933 {
1934 	int ret;
1935 
1936 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi disconnect\n");
1937 
1938 	wmi->traffic_class = 100;
1939 
1940 	/* Disconnect command does not need to do a SYNC before. */
1941 	ret = ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_DISCONNECT_CMDID);
1942 
1943 	return ret;
1944 }
1945 
1946 /* ath6kl_wmi_start_scan_cmd is to be deprecated. Use
1947  * ath6kl_wmi_begin_scan_cmd instead. The new function supports P2P
1948  * mgmt operations using station interface.
1949  */
1950 static int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx,
1951 				    enum wmi_scan_type scan_type,
1952 				    u32 force_fgscan, u32 is_legacy,
1953 				    u32 home_dwell_time,
1954 				    u32 force_scan_interval,
1955 				    s8 num_chan, u16 *ch_list)
1956 {
1957 	struct sk_buff *skb;
1958 	struct wmi_start_scan_cmd *sc;
1959 	int i, ret;
1960 
1961 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
1962 		return -EINVAL;
1963 
1964 	if (num_chan > WMI_MAX_CHANNELS)
1965 		return -EINVAL;
1966 
1967 	skb = ath6kl_wmi_get_new_buf(struct_size(sc, ch_list, num_chan));
1968 	if (!skb)
1969 		return -ENOMEM;
1970 
1971 	sc = (struct wmi_start_scan_cmd *) skb->data;
1972 	sc->scan_type = scan_type;
1973 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
1974 	sc->is_legacy = cpu_to_le32(is_legacy);
1975 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
1976 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
1977 	sc->num_ch = num_chan;
1978 
1979 	for (i = 0; i < num_chan; i++)
1980 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
1981 
1982 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_START_SCAN_CMDID,
1983 				  NO_SYNC_WMIFLAG);
1984 
1985 	return ret;
1986 }
1987 
1988 /*
1989  * beginscan supports (compared to old startscan) P2P mgmt operations using
1990  * station interface, send additional information like supported rates to
1991  * advertise and xmit rates for probe requests
1992  */
1993 int ath6kl_wmi_beginscan_cmd(struct wmi *wmi, u8 if_idx,
1994 			     enum wmi_scan_type scan_type,
1995 			     u32 force_fgscan, u32 is_legacy,
1996 			     u32 home_dwell_time, u32 force_scan_interval,
1997 			     s8 num_chan, u16 *ch_list, u32 no_cck, u32 *rates)
1998 {
1999 	struct ieee80211_supported_band *sband;
2000 	struct sk_buff *skb;
2001 	struct wmi_begin_scan_cmd *sc;
2002 	s8 *supp_rates;
2003 	int i, band, ret;
2004 	struct ath6kl *ar = wmi->parent_dev;
2005 	int num_rates;
2006 	u32 ratemask;
2007 
2008 	if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
2009 		      ar->fw_capabilities)) {
2010 		return ath6kl_wmi_startscan_cmd(wmi, if_idx,
2011 						scan_type, force_fgscan,
2012 						is_legacy, home_dwell_time,
2013 						force_scan_interval,
2014 						num_chan, ch_list);
2015 	}
2016 
2017 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
2018 		return -EINVAL;
2019 
2020 	if (num_chan > WMI_MAX_CHANNELS)
2021 		return -EINVAL;
2022 
2023 	skb = ath6kl_wmi_get_new_buf(struct_size(sc, ch_list, num_chan));
2024 	if (!skb)
2025 		return -ENOMEM;
2026 
2027 	sc = (struct wmi_begin_scan_cmd *) skb->data;
2028 	sc->scan_type = scan_type;
2029 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
2030 	sc->is_legacy = cpu_to_le32(is_legacy);
2031 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
2032 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
2033 	sc->no_cck = cpu_to_le32(no_cck);
2034 	sc->num_ch = num_chan;
2035 
2036 	for (band = 0; band < NUM_NL80211_BANDS; band++) {
2037 		sband = ar->wiphy->bands[band];
2038 
2039 		if (!sband)
2040 			continue;
2041 
2042 		if (WARN_ON(band >= ATH6KL_NUM_BANDS))
2043 			break;
2044 
2045 		ratemask = rates[band];
2046 		supp_rates = sc->supp_rates[band].rates;
2047 		num_rates = 0;
2048 
2049 		for (i = 0; i < sband->n_bitrates; i++) {
2050 			if ((BIT(i) & ratemask) == 0)
2051 				continue; /* skip rate */
2052 			supp_rates[num_rates++] =
2053 			    (u8) (sband->bitrates[i].bitrate / 5);
2054 		}
2055 		sc->supp_rates[band].nrates = num_rates;
2056 	}
2057 
2058 	for (i = 0; i < num_chan; i++)
2059 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
2060 
2061 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_BEGIN_SCAN_CMDID,
2062 				  NO_SYNC_WMIFLAG);
2063 
2064 	return ret;
2065 }
2066 
2067 int ath6kl_wmi_enable_sched_scan_cmd(struct wmi *wmi, u8 if_idx, bool enable)
2068 {
2069 	struct sk_buff *skb;
2070 	struct wmi_enable_sched_scan_cmd *sc;
2071 	int ret;
2072 
2073 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2074 	if (!skb)
2075 		return -ENOMEM;
2076 
2077 	ath6kl_dbg(ATH6KL_DBG_WMI, "%s scheduled scan on vif %d\n",
2078 		   enable ? "enabling" : "disabling", if_idx);
2079 	sc = (struct wmi_enable_sched_scan_cmd *) skb->data;
2080 	sc->enable = enable ? 1 : 0;
2081 
2082 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2083 				  WMI_ENABLE_SCHED_SCAN_CMDID,
2084 				  NO_SYNC_WMIFLAG);
2085 	return ret;
2086 }
2087 
2088 int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u8 if_idx,
2089 			      u16 fg_start_sec,
2090 			      u16 fg_end_sec, u16 bg_sec,
2091 			      u16 minact_chdw_msec, u16 maxact_chdw_msec,
2092 			      u16 pas_chdw_msec, u8 short_scan_ratio,
2093 			      u8 scan_ctrl_flag, u32 max_dfsch_act_time,
2094 			      u16 maxact_scan_per_ssid)
2095 {
2096 	struct sk_buff *skb;
2097 	struct wmi_scan_params_cmd *sc;
2098 	int ret;
2099 
2100 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2101 	if (!skb)
2102 		return -ENOMEM;
2103 
2104 	sc = (struct wmi_scan_params_cmd *) skb->data;
2105 	sc->fg_start_period = cpu_to_le16(fg_start_sec);
2106 	sc->fg_end_period = cpu_to_le16(fg_end_sec);
2107 	sc->bg_period = cpu_to_le16(bg_sec);
2108 	sc->minact_chdwell_time = cpu_to_le16(minact_chdw_msec);
2109 	sc->maxact_chdwell_time = cpu_to_le16(maxact_chdw_msec);
2110 	sc->pas_chdwell_time = cpu_to_le16(pas_chdw_msec);
2111 	sc->short_scan_ratio = short_scan_ratio;
2112 	sc->scan_ctrl_flags = scan_ctrl_flag;
2113 	sc->max_dfsch_act_time = cpu_to_le32(max_dfsch_act_time);
2114 	sc->maxact_scan_per_ssid = cpu_to_le16(maxact_scan_per_ssid);
2115 
2116 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_SCAN_PARAMS_CMDID,
2117 				  NO_SYNC_WMIFLAG);
2118 	return ret;
2119 }
2120 
2121 int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 if_idx, u8 filter, u32 ie_mask)
2122 {
2123 	struct sk_buff *skb;
2124 	struct wmi_bss_filter_cmd *cmd;
2125 	int ret;
2126 
2127 	if (filter >= LAST_BSS_FILTER)
2128 		return -EINVAL;
2129 
2130 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2131 	if (!skb)
2132 		return -ENOMEM;
2133 
2134 	cmd = (struct wmi_bss_filter_cmd *) skb->data;
2135 	cmd->bss_filter = filter;
2136 	cmd->ie_mask = cpu_to_le32(ie_mask);
2137 
2138 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BSS_FILTER_CMDID,
2139 				  NO_SYNC_WMIFLAG);
2140 	return ret;
2141 }
2142 
2143 int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 if_idx, u8 index, u8 flag,
2144 			      u8 ssid_len, u8 *ssid)
2145 {
2146 	struct sk_buff *skb;
2147 	struct wmi_probed_ssid_cmd *cmd;
2148 	int ret;
2149 
2150 	if (index >= MAX_PROBED_SSIDS)
2151 		return -EINVAL;
2152 
2153 	if (ssid_len > sizeof(cmd->ssid))
2154 		return -EINVAL;
2155 
2156 	if ((flag & (DISABLE_SSID_FLAG | ANY_SSID_FLAG)) && (ssid_len > 0))
2157 		return -EINVAL;
2158 
2159 	if ((flag & SPECIFIC_SSID_FLAG) && !ssid_len)
2160 		return -EINVAL;
2161 
2162 	if (flag & SPECIFIC_SSID_FLAG)
2163 		wmi->is_probe_ssid = true;
2164 
2165 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2166 	if (!skb)
2167 		return -ENOMEM;
2168 
2169 	cmd = (struct wmi_probed_ssid_cmd *) skb->data;
2170 	cmd->entry_index = index;
2171 	cmd->flag = flag;
2172 	cmd->ssid_len = ssid_len;
2173 	memcpy(cmd->ssid, ssid, ssid_len);
2174 
2175 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PROBED_SSID_CMDID,
2176 				  NO_SYNC_WMIFLAG);
2177 	return ret;
2178 }
2179 
2180 int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u8 if_idx,
2181 				  u16 listen_interval,
2182 				  u16 listen_beacons)
2183 {
2184 	struct sk_buff *skb;
2185 	struct wmi_listen_int_cmd *cmd;
2186 	int ret;
2187 
2188 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2189 	if (!skb)
2190 		return -ENOMEM;
2191 
2192 	cmd = (struct wmi_listen_int_cmd *) skb->data;
2193 	cmd->listen_intvl = cpu_to_le16(listen_interval);
2194 	cmd->num_beacons = cpu_to_le16(listen_beacons);
2195 
2196 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LISTEN_INT_CMDID,
2197 				  NO_SYNC_WMIFLAG);
2198 	return ret;
2199 }
2200 
2201 int ath6kl_wmi_bmisstime_cmd(struct wmi *wmi, u8 if_idx,
2202 			     u16 bmiss_time, u16 num_beacons)
2203 {
2204 	struct sk_buff *skb;
2205 	struct wmi_bmiss_time_cmd *cmd;
2206 	int ret;
2207 
2208 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2209 	if (!skb)
2210 		return -ENOMEM;
2211 
2212 	cmd = (struct wmi_bmiss_time_cmd *) skb->data;
2213 	cmd->bmiss_time = cpu_to_le16(bmiss_time);
2214 	cmd->num_beacons = cpu_to_le16(num_beacons);
2215 
2216 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BMISS_TIME_CMDID,
2217 				  NO_SYNC_WMIFLAG);
2218 	return ret;
2219 }
2220 
2221 int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 if_idx, u8 pwr_mode)
2222 {
2223 	struct sk_buff *skb;
2224 	struct wmi_power_mode_cmd *cmd;
2225 	int ret;
2226 
2227 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2228 	if (!skb)
2229 		return -ENOMEM;
2230 
2231 	cmd = (struct wmi_power_mode_cmd *) skb->data;
2232 	cmd->pwr_mode = pwr_mode;
2233 	wmi->pwr_mode = pwr_mode;
2234 
2235 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_MODE_CMDID,
2236 				  NO_SYNC_WMIFLAG);
2237 	return ret;
2238 }
2239 
2240 int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u8 if_idx, u16 idle_period,
2241 			    u16 ps_poll_num, u16 dtim_policy,
2242 			    u16 tx_wakeup_policy, u16 num_tx_to_wakeup,
2243 			    u16 ps_fail_event_policy)
2244 {
2245 	struct sk_buff *skb;
2246 	struct wmi_power_params_cmd *pm;
2247 	int ret;
2248 
2249 	skb = ath6kl_wmi_get_new_buf(sizeof(*pm));
2250 	if (!skb)
2251 		return -ENOMEM;
2252 
2253 	pm = (struct wmi_power_params_cmd *)skb->data;
2254 	pm->idle_period = cpu_to_le16(idle_period);
2255 	pm->pspoll_number = cpu_to_le16(ps_poll_num);
2256 	pm->dtim_policy = cpu_to_le16(dtim_policy);
2257 	pm->tx_wakeup_policy = cpu_to_le16(tx_wakeup_policy);
2258 	pm->num_tx_to_wakeup = cpu_to_le16(num_tx_to_wakeup);
2259 	pm->ps_fail_event_policy = cpu_to_le16(ps_fail_event_policy);
2260 
2261 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_PARAMS_CMDID,
2262 				  NO_SYNC_WMIFLAG);
2263 	return ret;
2264 }
2265 
2266 int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 if_idx, u8 timeout)
2267 {
2268 	struct sk_buff *skb;
2269 	struct wmi_disc_timeout_cmd *cmd;
2270 	int ret;
2271 
2272 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2273 	if (!skb)
2274 		return -ENOMEM;
2275 
2276 	cmd = (struct wmi_disc_timeout_cmd *) skb->data;
2277 	cmd->discon_timeout = timeout;
2278 
2279 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_DISC_TIMEOUT_CMDID,
2280 				  NO_SYNC_WMIFLAG);
2281 
2282 	if (ret == 0)
2283 		ath6kl_debug_set_disconnect_timeout(wmi->parent_dev, timeout);
2284 
2285 	return ret;
2286 }
2287 
2288 int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index,
2289 			  enum ath6kl_crypto_type key_type,
2290 			  u8 key_usage, u8 key_len,
2291 			  u8 *key_rsc, unsigned int key_rsc_len,
2292 			  u8 *key_material,
2293 			  u8 key_op_ctrl, u8 *mac_addr,
2294 			  enum wmi_sync_flag sync_flag)
2295 {
2296 	struct sk_buff *skb;
2297 	struct wmi_add_cipher_key_cmd *cmd;
2298 	int ret;
2299 
2300 	ath6kl_dbg(ATH6KL_DBG_WMI,
2301 		   "addkey cmd: key_index=%u key_type=%d key_usage=%d key_len=%d key_op_ctrl=%d\n",
2302 		   key_index, key_type, key_usage, key_len, key_op_ctrl);
2303 
2304 	if ((key_index > WMI_MAX_KEY_INDEX) || (key_len > WMI_MAX_KEY_LEN) ||
2305 	    (key_material == NULL) || key_rsc_len > 8)
2306 		return -EINVAL;
2307 
2308 	if ((WEP_CRYPT != key_type) && (NULL == key_rsc))
2309 		return -EINVAL;
2310 
2311 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2312 	if (!skb)
2313 		return -ENOMEM;
2314 
2315 	cmd = (struct wmi_add_cipher_key_cmd *) skb->data;
2316 	cmd->key_index = key_index;
2317 	cmd->key_type = key_type;
2318 	cmd->key_usage = key_usage;
2319 	cmd->key_len = key_len;
2320 	memcpy(cmd->key, key_material, key_len);
2321 
2322 	if (key_rsc != NULL)
2323 		memcpy(cmd->key_rsc, key_rsc, key_rsc_len);
2324 
2325 	cmd->key_op_ctrl = key_op_ctrl;
2326 
2327 	if (mac_addr)
2328 		memcpy(cmd->key_mac_addr, mac_addr, ETH_ALEN);
2329 
2330 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_CIPHER_KEY_CMDID,
2331 				  sync_flag);
2332 
2333 	return ret;
2334 }
2335 
2336 int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 if_idx, const u8 *krk)
2337 {
2338 	struct sk_buff *skb;
2339 	struct wmi_add_krk_cmd *cmd;
2340 	int ret;
2341 
2342 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2343 	if (!skb)
2344 		return -ENOMEM;
2345 
2346 	cmd = (struct wmi_add_krk_cmd *) skb->data;
2347 	memcpy(cmd->krk, krk, WMI_KRK_LEN);
2348 
2349 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_KRK_CMDID,
2350 				  NO_SYNC_WMIFLAG);
2351 
2352 	return ret;
2353 }
2354 
2355 int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index)
2356 {
2357 	struct sk_buff *skb;
2358 	struct wmi_delete_cipher_key_cmd *cmd;
2359 	int ret;
2360 
2361 	if (key_index > WMI_MAX_KEY_INDEX)
2362 		return -EINVAL;
2363 
2364 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2365 	if (!skb)
2366 		return -ENOMEM;
2367 
2368 	cmd = (struct wmi_delete_cipher_key_cmd *) skb->data;
2369 	cmd->key_index = key_index;
2370 
2371 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_CIPHER_KEY_CMDID,
2372 				  NO_SYNC_WMIFLAG);
2373 
2374 	return ret;
2375 }
2376 
2377 int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, u8 if_idx, const u8 *bssid,
2378 			    const u8 *pmkid, bool set)
2379 {
2380 	struct sk_buff *skb;
2381 	struct wmi_setpmkid_cmd *cmd;
2382 	int ret;
2383 
2384 	if (bssid == NULL)
2385 		return -EINVAL;
2386 
2387 	if (set && pmkid == NULL)
2388 		return -EINVAL;
2389 
2390 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2391 	if (!skb)
2392 		return -ENOMEM;
2393 
2394 	cmd = (struct wmi_setpmkid_cmd *) skb->data;
2395 	memcpy(cmd->bssid, bssid, ETH_ALEN);
2396 	if (set) {
2397 		memcpy(cmd->pmkid, pmkid, sizeof(cmd->pmkid));
2398 		cmd->enable = PMKID_ENABLE;
2399 	} else {
2400 		memset(cmd->pmkid, 0, sizeof(cmd->pmkid));
2401 		cmd->enable = PMKID_DISABLE;
2402 	}
2403 
2404 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PMKID_CMDID,
2405 				  NO_SYNC_WMIFLAG);
2406 
2407 	return ret;
2408 }
2409 
2410 static int ath6kl_wmi_data_sync_send(struct wmi *wmi, struct sk_buff *skb,
2411 			      enum htc_endpoint_id ep_id, u8 if_idx)
2412 {
2413 	struct wmi_data_hdr *data_hdr;
2414 	int ret;
2415 
2416 	if (WARN_ON(skb == NULL || ep_id == wmi->ep_id)) {
2417 		dev_kfree_skb(skb);
2418 		return -EINVAL;
2419 	}
2420 
2421 	skb_push(skb, sizeof(struct wmi_data_hdr));
2422 
2423 	data_hdr = (struct wmi_data_hdr *) skb->data;
2424 	data_hdr->info = SYNC_MSGTYPE << WMI_DATA_HDR_MSG_TYPE_SHIFT;
2425 	data_hdr->info3 = cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
2426 
2427 	ret = ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
2428 
2429 	return ret;
2430 }
2431 
2432 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx)
2433 {
2434 	struct sk_buff *skb;
2435 	struct wmi_sync_cmd *cmd;
2436 	struct wmi_data_sync_bufs data_sync_bufs[WMM_NUM_AC];
2437 	enum htc_endpoint_id ep_id;
2438 	u8 index, num_pri_streams = 0;
2439 	int ret = 0;
2440 
2441 	memset(data_sync_bufs, 0, sizeof(data_sync_bufs));
2442 
2443 	spin_lock_bh(&wmi->lock);
2444 
2445 	for (index = 0; index < WMM_NUM_AC; index++) {
2446 		if (wmi->fat_pipe_exist & (1 << index)) {
2447 			num_pri_streams++;
2448 			data_sync_bufs[num_pri_streams - 1].traffic_class =
2449 			    index;
2450 		}
2451 	}
2452 
2453 	spin_unlock_bh(&wmi->lock);
2454 
2455 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2456 	if (!skb)
2457 		return -ENOMEM;
2458 
2459 	cmd = (struct wmi_sync_cmd *) skb->data;
2460 
2461 	/*
2462 	 * In the SYNC cmd sent on the control Ep, send a bitmap
2463 	 * of the data eps on which the Data Sync will be sent
2464 	 */
2465 	cmd->data_sync_map = wmi->fat_pipe_exist;
2466 
2467 	for (index = 0; index < num_pri_streams; index++) {
2468 		data_sync_bufs[index].skb = ath6kl_buf_alloc(0);
2469 		if (data_sync_bufs[index].skb == NULL) {
2470 			ret = -ENOMEM;
2471 			break;
2472 		}
2473 	}
2474 
2475 	/*
2476 	 * If buffer allocation for any of the dataSync fails,
2477 	 * then do not send the Synchronize cmd on the control ep
2478 	 */
2479 	if (ret)
2480 		goto free_cmd_skb;
2481 
2482 	/*
2483 	 * Send sync cmd followed by sync data messages on all
2484 	 * endpoints being used
2485 	 */
2486 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SYNCHRONIZE_CMDID,
2487 				  NO_SYNC_WMIFLAG);
2488 
2489 	if (ret)
2490 		goto free_data_skb;
2491 
2492 	for (index = 0; index < num_pri_streams; index++) {
2493 		if (WARN_ON(!data_sync_bufs[index].skb)) {
2494 			ret = -ENOMEM;
2495 			goto free_data_skb;
2496 		}
2497 
2498 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev,
2499 					       data_sync_bufs[index].
2500 					       traffic_class);
2501 		ret =
2502 		    ath6kl_wmi_data_sync_send(wmi, data_sync_bufs[index].skb,
2503 					      ep_id, if_idx);
2504 
2505 		data_sync_bufs[index].skb = NULL;
2506 
2507 		if (ret)
2508 			goto free_data_skb;
2509 	}
2510 
2511 	return 0;
2512 
2513 free_cmd_skb:
2514 	/* free up any resources left over (possibly due to an error) */
2515 	dev_kfree_skb(skb);
2516 
2517 free_data_skb:
2518 	for (index = 0; index < num_pri_streams; index++)
2519 		dev_kfree_skb((struct sk_buff *)data_sync_bufs[index].skb);
2520 
2521 	return ret;
2522 }
2523 
2524 int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, u8 if_idx,
2525 				  struct wmi_create_pstream_cmd *params)
2526 {
2527 	struct sk_buff *skb;
2528 	struct wmi_create_pstream_cmd *cmd;
2529 	u8 fatpipe_exist_for_ac = 0;
2530 	s32 min_phy = 0;
2531 	s32 nominal_phy = 0;
2532 	int ret;
2533 
2534 	if (!((params->user_pri <= 0x7) &&
2535 	      (up_to_ac[params->user_pri & 0x7] == params->traffic_class) &&
2536 	      (params->traffic_direc == UPLINK_TRAFFIC ||
2537 	       params->traffic_direc == DNLINK_TRAFFIC ||
2538 	       params->traffic_direc == BIDIR_TRAFFIC) &&
2539 	      (params->traffic_type == TRAFFIC_TYPE_APERIODIC ||
2540 	       params->traffic_type == TRAFFIC_TYPE_PERIODIC) &&
2541 	      (params->voice_psc_cap == DISABLE_FOR_THIS_AC ||
2542 	       params->voice_psc_cap == ENABLE_FOR_THIS_AC ||
2543 	       params->voice_psc_cap == ENABLE_FOR_ALL_AC) &&
2544 	      (params->tsid == WMI_IMPLICIT_PSTREAM ||
2545 	       params->tsid <= WMI_MAX_THINSTREAM))) {
2546 		return -EINVAL;
2547 	}
2548 
2549 	/*
2550 	 * Check nominal PHY rate is >= minimalPHY,
2551 	 * so that DUT can allow TSRS IE
2552 	 */
2553 
2554 	/* Get the physical rate (units of bps) */
2555 	min_phy = ((le32_to_cpu(params->min_phy_rate) / 1000) / 1000);
2556 
2557 	/* Check minimal phy < nominal phy rate */
2558 	if (params->nominal_phy >= min_phy) {
2559 		/* unit of 500 kbps */
2560 		nominal_phy = (params->nominal_phy * 1000) / 500;
2561 		ath6kl_dbg(ATH6KL_DBG_WMI,
2562 			   "TSRS IE enabled::MinPhy %x->NominalPhy ===> %x\n",
2563 			   min_phy, nominal_phy);
2564 
2565 		params->nominal_phy = nominal_phy;
2566 	} else {
2567 		params->nominal_phy = 0;
2568 	}
2569 
2570 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2571 	if (!skb)
2572 		return -ENOMEM;
2573 
2574 	ath6kl_dbg(ATH6KL_DBG_WMI,
2575 		   "sending create_pstream_cmd: ac=%d  tsid:%d\n",
2576 		   params->traffic_class, params->tsid);
2577 
2578 	cmd = (struct wmi_create_pstream_cmd *) skb->data;
2579 	memcpy(cmd, params, sizeof(*cmd));
2580 
2581 	/* This is an implicitly created Fat pipe */
2582 	if ((u32) params->tsid == (u32) WMI_IMPLICIT_PSTREAM) {
2583 		spin_lock_bh(&wmi->lock);
2584 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2585 					(1 << params->traffic_class));
2586 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2587 		spin_unlock_bh(&wmi->lock);
2588 	} else {
2589 		/* explicitly created thin stream within a fat pipe */
2590 		spin_lock_bh(&wmi->lock);
2591 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2592 					(1 << params->traffic_class));
2593 		wmi->stream_exist_for_ac[params->traffic_class] |=
2594 		    (1 << params->tsid);
2595 		/*
2596 		 * If a thinstream becomes active, the fat pipe automatically
2597 		 * becomes active
2598 		 */
2599 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2600 		spin_unlock_bh(&wmi->lock);
2601 	}
2602 
2603 	/*
2604 	 * Indicate activty change to driver layer only if this is the
2605 	 * first TSID to get created in this AC explicitly or an implicit
2606 	 * fat pipe is getting created.
2607 	 */
2608 	if (!fatpipe_exist_for_ac)
2609 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2610 					    params->traffic_class, true);
2611 
2612 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CREATE_PSTREAM_CMDID,
2613 				  NO_SYNC_WMIFLAG);
2614 	return ret;
2615 }
2616 
2617 int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 if_idx, u8 traffic_class,
2618 				  u8 tsid)
2619 {
2620 	struct sk_buff *skb;
2621 	struct wmi_delete_pstream_cmd *cmd;
2622 	u16 active_tsids = 0;
2623 	int ret;
2624 
2625 	if (traffic_class >= WMM_NUM_AC) {
2626 		ath6kl_err("invalid traffic class: %d\n", traffic_class);
2627 		return -EINVAL;
2628 	}
2629 
2630 	if (tsid >= 16) {
2631 		ath6kl_err("invalid tsid: %d\n", tsid);
2632 		return -EINVAL;
2633 	}
2634 
2635 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2636 	if (!skb)
2637 		return -ENOMEM;
2638 
2639 	cmd = (struct wmi_delete_pstream_cmd *) skb->data;
2640 	cmd->traffic_class = traffic_class;
2641 	cmd->tsid = tsid;
2642 
2643 	spin_lock_bh(&wmi->lock);
2644 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2645 	spin_unlock_bh(&wmi->lock);
2646 
2647 	if (!(active_tsids & (1 << tsid))) {
2648 		dev_kfree_skb(skb);
2649 		ath6kl_dbg(ATH6KL_DBG_WMI,
2650 			   "TSID %d doesn't exist for traffic class: %d\n",
2651 			   tsid, traffic_class);
2652 		return -ENODATA;
2653 	}
2654 
2655 	ath6kl_dbg(ATH6KL_DBG_WMI,
2656 		   "sending delete_pstream_cmd: traffic class: %d tsid=%d\n",
2657 		   traffic_class, tsid);
2658 
2659 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_PSTREAM_CMDID,
2660 				  SYNC_BEFORE_WMIFLAG);
2661 
2662 	spin_lock_bh(&wmi->lock);
2663 	wmi->stream_exist_for_ac[traffic_class] &= ~(1 << tsid);
2664 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2665 	spin_unlock_bh(&wmi->lock);
2666 
2667 	/*
2668 	 * Indicate stream inactivity to driver layer only if all tsids
2669 	 * within this AC are deleted.
2670 	 */
2671 	if (!active_tsids) {
2672 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2673 					    traffic_class, false);
2674 		wmi->fat_pipe_exist &= ~(1 << traffic_class);
2675 	}
2676 
2677 	return ret;
2678 }
2679 
2680 int ath6kl_wmi_set_ip_cmd(struct wmi *wmi, u8 if_idx,
2681 			  __be32 ips0, __be32 ips1)
2682 {
2683 	struct sk_buff *skb;
2684 	struct wmi_set_ip_cmd *cmd;
2685 	int ret;
2686 
2687 	/* Multicast address are not valid */
2688 	if (ipv4_is_multicast(ips0) ||
2689 	    ipv4_is_multicast(ips1))
2690 		return -EINVAL;
2691 
2692 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_ip_cmd));
2693 	if (!skb)
2694 		return -ENOMEM;
2695 
2696 	cmd = (struct wmi_set_ip_cmd *) skb->data;
2697 	cmd->ips[0] = ips0;
2698 	cmd->ips[1] = ips1;
2699 
2700 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IP_CMDID,
2701 				  NO_SYNC_WMIFLAG);
2702 	return ret;
2703 }
2704 
2705 static void ath6kl_wmi_relinquish_implicit_pstream_credits(struct wmi *wmi)
2706 {
2707 	u16 active_tsids;
2708 	u8 stream_exist;
2709 	int i;
2710 
2711 	/*
2712 	 * Relinquish credits from all implicitly created pstreams
2713 	 * since when we go to sleep. If user created explicit
2714 	 * thinstreams exists with in a fatpipe leave them intact
2715 	 * for the user to delete.
2716 	 */
2717 	spin_lock_bh(&wmi->lock);
2718 	stream_exist = wmi->fat_pipe_exist;
2719 	spin_unlock_bh(&wmi->lock);
2720 
2721 	for (i = 0; i < WMM_NUM_AC; i++) {
2722 		if (stream_exist & (1 << i)) {
2723 			/*
2724 			 * FIXME: Is this lock & unlock inside
2725 			 * for loop correct? may need rework.
2726 			 */
2727 			spin_lock_bh(&wmi->lock);
2728 			active_tsids = wmi->stream_exist_for_ac[i];
2729 			spin_unlock_bh(&wmi->lock);
2730 
2731 			/*
2732 			 * If there are no user created thin streams
2733 			 * delete the fatpipe
2734 			 */
2735 			if (!active_tsids) {
2736 				stream_exist &= ~(1 << i);
2737 				/*
2738 				 * Indicate inactivity to driver layer for
2739 				 * this fatpipe (pstream)
2740 				 */
2741 				ath6kl_indicate_tx_activity(wmi->parent_dev,
2742 							    i, false);
2743 			}
2744 		}
2745 	}
2746 
2747 	/* FIXME: Can we do this assignment without locking ? */
2748 	spin_lock_bh(&wmi->lock);
2749 	wmi->fat_pipe_exist = stream_exist;
2750 	spin_unlock_bh(&wmi->lock);
2751 }
2752 
2753 static int ath6kl_set_bitrate_mask64(struct wmi *wmi, u8 if_idx,
2754 				     const struct cfg80211_bitrate_mask *mask)
2755 {
2756 	struct sk_buff *skb;
2757 	int ret, mode, band;
2758 	u64 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2759 	struct wmi_set_tx_select_rates64_cmd *cmd;
2760 
2761 	memset(&ratemask, 0, sizeof(ratemask));
2762 
2763 	/* only check 2.4 and 5 GHz bands, skip the rest */
2764 	for (band = 0; band <= NL80211_BAND_5GHZ; band++) {
2765 		/* copy legacy rate mask */
2766 		ratemask[band] = mask->control[band].legacy;
2767 		if (band == NL80211_BAND_5GHZ)
2768 			ratemask[band] =
2769 				mask->control[band].legacy << 4;
2770 
2771 		/* copy mcs rate mask */
2772 		mcsrate = mask->control[band].ht_mcs[1];
2773 		mcsrate <<= 8;
2774 		mcsrate |= mask->control[band].ht_mcs[0];
2775 		ratemask[band] |= mcsrate << 12;
2776 		ratemask[band] |= mcsrate << 28;
2777 	}
2778 
2779 	ath6kl_dbg(ATH6KL_DBG_WMI,
2780 		   "Ratemask 64 bit: 2.4:%llx 5:%llx\n",
2781 		   ratemask[0], ratemask[1]);
2782 
2783 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2784 	if (!skb)
2785 		return -ENOMEM;
2786 
2787 	cmd = (struct wmi_set_tx_select_rates64_cmd *) skb->data;
2788 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2789 		/* A mode operate in 5GHZ band */
2790 		if (mode == WMI_RATES_MODE_11A ||
2791 		    mode == WMI_RATES_MODE_11A_HT20 ||
2792 		    mode == WMI_RATES_MODE_11A_HT40)
2793 			band = NL80211_BAND_5GHZ;
2794 		else
2795 			band = NL80211_BAND_2GHZ;
2796 		cmd->ratemask[mode] = cpu_to_le64(ratemask[band]);
2797 	}
2798 
2799 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2800 				  WMI_SET_TX_SELECT_RATES_CMDID,
2801 				  NO_SYNC_WMIFLAG);
2802 	return ret;
2803 }
2804 
2805 static int ath6kl_set_bitrate_mask32(struct wmi *wmi, u8 if_idx,
2806 				     const struct cfg80211_bitrate_mask *mask)
2807 {
2808 	struct sk_buff *skb;
2809 	int ret, mode, band;
2810 	u32 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2811 	struct wmi_set_tx_select_rates32_cmd *cmd;
2812 
2813 	memset(&ratemask, 0, sizeof(ratemask));
2814 
2815 	/* only check 2.4 and 5 GHz bands, skip the rest */
2816 	for (band = 0; band <= NL80211_BAND_5GHZ; band++) {
2817 		/* copy legacy rate mask */
2818 		ratemask[band] = mask->control[band].legacy;
2819 		if (band == NL80211_BAND_5GHZ)
2820 			ratemask[band] =
2821 				mask->control[band].legacy << 4;
2822 
2823 		/* copy mcs rate mask */
2824 		mcsrate = mask->control[band].ht_mcs[0];
2825 		ratemask[band] |= mcsrate << 12;
2826 		ratemask[band] |= mcsrate << 20;
2827 	}
2828 
2829 	ath6kl_dbg(ATH6KL_DBG_WMI,
2830 		   "Ratemask 32 bit: 2.4:%x 5:%x\n",
2831 		   ratemask[0], ratemask[1]);
2832 
2833 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2834 	if (!skb)
2835 		return -ENOMEM;
2836 
2837 	cmd = (struct wmi_set_tx_select_rates32_cmd *) skb->data;
2838 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2839 		/* A mode operate in 5GHZ band */
2840 		if (mode == WMI_RATES_MODE_11A ||
2841 		    mode == WMI_RATES_MODE_11A_HT20 ||
2842 		    mode == WMI_RATES_MODE_11A_HT40)
2843 			band = NL80211_BAND_5GHZ;
2844 		else
2845 			band = NL80211_BAND_2GHZ;
2846 		cmd->ratemask[mode] = cpu_to_le32(ratemask[band]);
2847 	}
2848 
2849 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2850 				  WMI_SET_TX_SELECT_RATES_CMDID,
2851 				  NO_SYNC_WMIFLAG);
2852 	return ret;
2853 }
2854 
2855 int ath6kl_wmi_set_bitrate_mask(struct wmi *wmi, u8 if_idx,
2856 				const struct cfg80211_bitrate_mask *mask)
2857 {
2858 	struct ath6kl *ar = wmi->parent_dev;
2859 
2860 	if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES,
2861 		     ar->fw_capabilities))
2862 		return ath6kl_set_bitrate_mask64(wmi, if_idx, mask);
2863 	else
2864 		return ath6kl_set_bitrate_mask32(wmi, if_idx, mask);
2865 }
2866 
2867 int ath6kl_wmi_set_host_sleep_mode_cmd(struct wmi *wmi, u8 if_idx,
2868 				       enum ath6kl_host_mode host_mode)
2869 {
2870 	struct sk_buff *skb;
2871 	struct wmi_set_host_sleep_mode_cmd *cmd;
2872 	int ret;
2873 
2874 	if ((host_mode != ATH6KL_HOST_MODE_ASLEEP) &&
2875 	    (host_mode != ATH6KL_HOST_MODE_AWAKE)) {
2876 		ath6kl_err("invalid host sleep mode: %d\n", host_mode);
2877 		return -EINVAL;
2878 	}
2879 
2880 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2881 	if (!skb)
2882 		return -ENOMEM;
2883 
2884 	cmd = (struct wmi_set_host_sleep_mode_cmd *) skb->data;
2885 
2886 	if (host_mode == ATH6KL_HOST_MODE_ASLEEP) {
2887 		ath6kl_wmi_relinquish_implicit_pstream_credits(wmi);
2888 		cmd->asleep = cpu_to_le32(1);
2889 	} else {
2890 		cmd->awake = cpu_to_le32(1);
2891 	}
2892 
2893 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2894 				  WMI_SET_HOST_SLEEP_MODE_CMDID,
2895 				  NO_SYNC_WMIFLAG);
2896 	return ret;
2897 }
2898 
2899 /* This command has zero length payload */
2900 static int ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(struct wmi *wmi,
2901 						      struct ath6kl_vif *vif)
2902 {
2903 	struct ath6kl *ar = wmi->parent_dev;
2904 
2905 	set_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2906 	wake_up(&ar->event_wq);
2907 
2908 	return 0;
2909 }
2910 
2911 int ath6kl_wmi_set_wow_mode_cmd(struct wmi *wmi, u8 if_idx,
2912 				enum ath6kl_wow_mode wow_mode,
2913 				u32 filter, u16 host_req_delay)
2914 {
2915 	struct sk_buff *skb;
2916 	struct wmi_set_wow_mode_cmd *cmd;
2917 	int ret;
2918 
2919 	if ((wow_mode != ATH6KL_WOW_MODE_ENABLE) &&
2920 	    wow_mode != ATH6KL_WOW_MODE_DISABLE) {
2921 		ath6kl_err("invalid wow mode: %d\n", wow_mode);
2922 		return -EINVAL;
2923 	}
2924 
2925 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2926 	if (!skb)
2927 		return -ENOMEM;
2928 
2929 	cmd = (struct wmi_set_wow_mode_cmd *) skb->data;
2930 	cmd->enable_wow = cpu_to_le32(wow_mode);
2931 	cmd->filter = cpu_to_le32(filter);
2932 	cmd->host_req_delay = cpu_to_le16(host_req_delay);
2933 
2934 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WOW_MODE_CMDID,
2935 				  NO_SYNC_WMIFLAG);
2936 	return ret;
2937 }
2938 
2939 int ath6kl_wmi_add_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2940 				   u8 list_id, u8 filter_size,
2941 				   u8 filter_offset, const u8 *filter,
2942 				   const u8 *mask)
2943 {
2944 	struct sk_buff *skb;
2945 	struct wmi_add_wow_pattern_cmd *cmd;
2946 	u16 size;
2947 	u8 *filter_mask;
2948 	int ret;
2949 
2950 	/*
2951 	 * Allocate additional memory in the buffer to hold
2952 	 * filter and mask value, which is twice of filter_size.
2953 	 */
2954 	size = sizeof(*cmd) + (2 * filter_size);
2955 
2956 	skb = ath6kl_wmi_get_new_buf(size);
2957 	if (!skb)
2958 		return -ENOMEM;
2959 
2960 	cmd = (struct wmi_add_wow_pattern_cmd *) skb->data;
2961 	cmd->filter_list_id = list_id;
2962 	cmd->filter_size = filter_size;
2963 	cmd->filter_offset = filter_offset;
2964 
2965 	memcpy(cmd->filter, filter, filter_size);
2966 
2967 	filter_mask = (u8 *) (cmd->filter + filter_size);
2968 	memcpy(filter_mask, mask, filter_size);
2969 
2970 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_WOW_PATTERN_CMDID,
2971 				  NO_SYNC_WMIFLAG);
2972 
2973 	return ret;
2974 }
2975 
2976 int ath6kl_wmi_del_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2977 				   u16 list_id, u16 filter_id)
2978 {
2979 	struct sk_buff *skb;
2980 	struct wmi_del_wow_pattern_cmd *cmd;
2981 	int ret;
2982 
2983 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2984 	if (!skb)
2985 		return -ENOMEM;
2986 
2987 	cmd = (struct wmi_del_wow_pattern_cmd *) skb->data;
2988 	cmd->filter_list_id = cpu_to_le16(list_id);
2989 	cmd->filter_id = cpu_to_le16(filter_id);
2990 
2991 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DEL_WOW_PATTERN_CMDID,
2992 				  NO_SYNC_WMIFLAG);
2993 	return ret;
2994 }
2995 
2996 static int ath6kl_wmi_cmd_send_xtnd(struct wmi *wmi, struct sk_buff *skb,
2997 				    enum wmix_command_id cmd_id,
2998 				    enum wmi_sync_flag sync_flag)
2999 {
3000 	struct wmix_cmd_hdr *cmd_hdr;
3001 	int ret;
3002 
3003 	skb_push(skb, sizeof(struct wmix_cmd_hdr));
3004 
3005 	cmd_hdr = (struct wmix_cmd_hdr *) skb->data;
3006 	cmd_hdr->cmd_id = cpu_to_le32(cmd_id);
3007 
3008 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_EXTENSION_CMDID, sync_flag);
3009 
3010 	return ret;
3011 }
3012 
3013 int ath6kl_wmi_get_challenge_resp_cmd(struct wmi *wmi, u32 cookie, u32 source)
3014 {
3015 	struct sk_buff *skb;
3016 	struct wmix_hb_challenge_resp_cmd *cmd;
3017 	int ret;
3018 
3019 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3020 	if (!skb)
3021 		return -ENOMEM;
3022 
3023 	cmd = (struct wmix_hb_challenge_resp_cmd *) skb->data;
3024 	cmd->cookie = cpu_to_le32(cookie);
3025 	cmd->source = cpu_to_le32(source);
3026 
3027 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_HB_CHALLENGE_RESP_CMDID,
3028 				       NO_SYNC_WMIFLAG);
3029 	return ret;
3030 }
3031 
3032 int ath6kl_wmi_config_debug_module_cmd(struct wmi *wmi, u32 valid, u32 config)
3033 {
3034 	struct ath6kl_wmix_dbglog_cfg_module_cmd *cmd;
3035 	struct sk_buff *skb;
3036 	int ret;
3037 
3038 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3039 	if (!skb)
3040 		return -ENOMEM;
3041 
3042 	cmd = (struct ath6kl_wmix_dbglog_cfg_module_cmd *) skb->data;
3043 	cmd->valid = cpu_to_le32(valid);
3044 	cmd->config = cpu_to_le32(config);
3045 
3046 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_DBGLOG_CFG_MODULE_CMDID,
3047 				       NO_SYNC_WMIFLAG);
3048 	return ret;
3049 }
3050 
3051 int ath6kl_wmi_get_stats_cmd(struct wmi *wmi, u8 if_idx)
3052 {
3053 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_STATISTICS_CMDID);
3054 }
3055 
3056 int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 if_idx, u8 dbM)
3057 {
3058 	struct sk_buff *skb;
3059 	struct wmi_set_tx_pwr_cmd *cmd;
3060 	int ret;
3061 
3062 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_tx_pwr_cmd));
3063 	if (!skb)
3064 		return -ENOMEM;
3065 
3066 	cmd = (struct wmi_set_tx_pwr_cmd *) skb->data;
3067 	cmd->dbM = dbM;
3068 
3069 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_TX_PWR_CMDID,
3070 				  NO_SYNC_WMIFLAG);
3071 
3072 	return ret;
3073 }
3074 
3075 int ath6kl_wmi_get_tx_pwr_cmd(struct wmi *wmi, u8 if_idx)
3076 {
3077 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_TX_PWR_CMDID);
3078 }
3079 
3080 int ath6kl_wmi_get_roam_tbl_cmd(struct wmi *wmi)
3081 {
3082 	return ath6kl_wmi_simple_cmd(wmi, 0, WMI_GET_ROAM_TBL_CMDID);
3083 }
3084 
3085 int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 if_idx, u8 status,
3086 				 u8 preamble_policy)
3087 {
3088 	struct sk_buff *skb;
3089 	struct wmi_set_lpreamble_cmd *cmd;
3090 	int ret;
3091 
3092 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_lpreamble_cmd));
3093 	if (!skb)
3094 		return -ENOMEM;
3095 
3096 	cmd = (struct wmi_set_lpreamble_cmd *) skb->data;
3097 	cmd->status = status;
3098 	cmd->preamble_policy = preamble_policy;
3099 
3100 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LPREAMBLE_CMDID,
3101 				  NO_SYNC_WMIFLAG);
3102 	return ret;
3103 }
3104 
3105 int ath6kl_wmi_set_rts_cmd(struct wmi *wmi, u16 threshold)
3106 {
3107 	struct sk_buff *skb;
3108 	struct wmi_set_rts_cmd *cmd;
3109 	int ret;
3110 
3111 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_rts_cmd));
3112 	if (!skb)
3113 		return -ENOMEM;
3114 
3115 	cmd = (struct wmi_set_rts_cmd *) skb->data;
3116 	cmd->threshold = cpu_to_le16(threshold);
3117 
3118 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_RTS_CMDID,
3119 				  NO_SYNC_WMIFLAG);
3120 	return ret;
3121 }
3122 
3123 int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, u8 if_idx, enum wmi_txop_cfg cfg)
3124 {
3125 	struct sk_buff *skb;
3126 	struct wmi_set_wmm_txop_cmd *cmd;
3127 	int ret;
3128 
3129 	if (!((cfg == WMI_TXOP_DISABLED) || (cfg == WMI_TXOP_ENABLED)))
3130 		return -EINVAL;
3131 
3132 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_wmm_txop_cmd));
3133 	if (!skb)
3134 		return -ENOMEM;
3135 
3136 	cmd = (struct wmi_set_wmm_txop_cmd *) skb->data;
3137 	cmd->txop_enable = cfg;
3138 
3139 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WMM_TXOP_CMDID,
3140 				  NO_SYNC_WMIFLAG);
3141 	return ret;
3142 }
3143 
3144 int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 if_idx,
3145 				 u8 keep_alive_intvl)
3146 {
3147 	struct sk_buff *skb;
3148 	struct wmi_set_keepalive_cmd *cmd;
3149 	int ret;
3150 
3151 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3152 	if (!skb)
3153 		return -ENOMEM;
3154 
3155 	cmd = (struct wmi_set_keepalive_cmd *) skb->data;
3156 	cmd->keep_alive_intvl = keep_alive_intvl;
3157 
3158 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_KEEPALIVE_CMDID,
3159 				  NO_SYNC_WMIFLAG);
3160 
3161 	if (ret == 0)
3162 		ath6kl_debug_set_keepalive(wmi->parent_dev, keep_alive_intvl);
3163 
3164 	return ret;
3165 }
3166 
3167 int ath6kl_wmi_set_htcap_cmd(struct wmi *wmi, u8 if_idx,
3168 			     enum nl80211_band band,
3169 			     struct ath6kl_htcap *htcap)
3170 {
3171 	struct sk_buff *skb;
3172 	struct wmi_set_htcap_cmd *cmd;
3173 
3174 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3175 	if (!skb)
3176 		return -ENOMEM;
3177 
3178 	cmd = (struct wmi_set_htcap_cmd *) skb->data;
3179 
3180 	/*
3181 	 * NOTE: Band in firmware matches enum nl80211_band, it is unlikely
3182 	 * this will be changed in firmware. If at all there is any change in
3183 	 * band value, the host needs to be fixed.
3184 	 */
3185 	cmd->band = band;
3186 	cmd->ht_enable = !!htcap->ht_enable;
3187 	cmd->ht20_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_20);
3188 	cmd->ht40_supported =
3189 		!!(htcap->cap_info & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
3190 	cmd->ht40_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_40);
3191 	cmd->intolerant_40mhz =
3192 		!!(htcap->cap_info & IEEE80211_HT_CAP_40MHZ_INTOLERANT);
3193 	cmd->max_ampdu_len_exp = htcap->ampdu_factor;
3194 
3195 	ath6kl_dbg(ATH6KL_DBG_WMI,
3196 		   "Set htcap: band:%d ht_enable:%d 40mhz:%d sgi_20mhz:%d sgi_40mhz:%d 40mhz_intolerant:%d ampdu_len_exp:%d\n",
3197 		   cmd->band, cmd->ht_enable, cmd->ht40_supported,
3198 		   cmd->ht20_sgi, cmd->ht40_sgi, cmd->intolerant_40mhz,
3199 		   cmd->max_ampdu_len_exp);
3200 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_HT_CAP_CMDID,
3201 				   NO_SYNC_WMIFLAG);
3202 }
3203 
3204 int ath6kl_wmi_test_cmd(struct wmi *wmi, void *buf, size_t len)
3205 {
3206 	struct sk_buff *skb;
3207 	int ret;
3208 
3209 	skb = ath6kl_wmi_get_new_buf(len);
3210 	if (!skb)
3211 		return -ENOMEM;
3212 
3213 	memcpy(skb->data, buf, len);
3214 
3215 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_TEST_CMDID, NO_SYNC_WMIFLAG);
3216 
3217 	return ret;
3218 }
3219 
3220 int ath6kl_wmi_mcast_filter_cmd(struct wmi *wmi, u8 if_idx, bool mc_all_on)
3221 {
3222 	struct sk_buff *skb;
3223 	struct wmi_mcast_filter_cmd *cmd;
3224 	int ret;
3225 
3226 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3227 	if (!skb)
3228 		return -ENOMEM;
3229 
3230 	cmd = (struct wmi_mcast_filter_cmd *) skb->data;
3231 	cmd->mcast_all_enable = mc_all_on;
3232 
3233 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_MCAST_FILTER_CMDID,
3234 				  NO_SYNC_WMIFLAG);
3235 	return ret;
3236 }
3237 
3238 int ath6kl_wmi_add_del_mcast_filter_cmd(struct wmi *wmi, u8 if_idx,
3239 					u8 *filter, bool add_filter)
3240 {
3241 	struct sk_buff *skb;
3242 	struct wmi_mcast_filter_add_del_cmd *cmd;
3243 	int ret;
3244 
3245 	if ((filter[0] != 0x33 || filter[1] != 0x33) &&
3246 	    (filter[0] != 0x01 || filter[1] != 0x00 ||
3247 	    filter[2] != 0x5e || filter[3] > 0x7f)) {
3248 		ath6kl_warn("invalid multicast filter address\n");
3249 		return -EINVAL;
3250 	}
3251 
3252 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3253 	if (!skb)
3254 		return -ENOMEM;
3255 
3256 	cmd = (struct wmi_mcast_filter_add_del_cmd *) skb->data;
3257 	memcpy(cmd->mcast_mac, filter, ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
3258 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3259 				  add_filter ? WMI_SET_MCAST_FILTER_CMDID :
3260 				  WMI_DEL_MCAST_FILTER_CMDID,
3261 				  NO_SYNC_WMIFLAG);
3262 
3263 	return ret;
3264 }
3265 
3266 int ath6kl_wmi_sta_bmiss_enhance_cmd(struct wmi *wmi, u8 if_idx, bool enhance)
3267 {
3268 	struct sk_buff *skb;
3269 	struct wmi_sta_bmiss_enhance_cmd *cmd;
3270 	int ret;
3271 
3272 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3273 	if (!skb)
3274 		return -ENOMEM;
3275 
3276 	cmd = (struct wmi_sta_bmiss_enhance_cmd *) skb->data;
3277 	cmd->enable = enhance ? 1 : 0;
3278 
3279 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3280 				  WMI_STA_BMISS_ENHANCE_CMDID,
3281 				  NO_SYNC_WMIFLAG);
3282 	return ret;
3283 }
3284 
3285 int ath6kl_wmi_set_regdomain_cmd(struct wmi *wmi, const char *alpha2)
3286 {
3287 	struct sk_buff *skb;
3288 	struct wmi_set_regdomain_cmd *cmd;
3289 
3290 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3291 	if (!skb)
3292 		return -ENOMEM;
3293 
3294 	cmd = (struct wmi_set_regdomain_cmd *) skb->data;
3295 	memcpy(cmd->iso_name, alpha2, 2);
3296 
3297 	return ath6kl_wmi_cmd_send(wmi, 0, skb,
3298 				   WMI_SET_REGDOMAIN_CMDID,
3299 				   NO_SYNC_WMIFLAG);
3300 }
3301 
3302 s32 ath6kl_wmi_get_rate(struct wmi *wmi, s8 rate_index)
3303 {
3304 	struct ath6kl *ar = wmi->parent_dev;
3305 	u8 sgi = 0;
3306 	s32 ret;
3307 
3308 	if (rate_index == RATE_AUTO)
3309 		return 0;
3310 
3311 	/* SGI is stored as the MSB of the rate_index */
3312 	if (rate_index & RATE_INDEX_MSB) {
3313 		rate_index &= RATE_INDEX_WITHOUT_SGI_MASK;
3314 		sgi = 1;
3315 	}
3316 
3317 	if (test_bit(ATH6KL_FW_CAPABILITY_RATETABLE_MCS15,
3318 		     ar->fw_capabilities)) {
3319 		if (WARN_ON(rate_index >= ARRAY_SIZE(wmi_rate_tbl_mcs15)))
3320 			return 0;
3321 
3322 		ret = wmi_rate_tbl_mcs15[(u32) rate_index][sgi];
3323 	} else {
3324 		if (WARN_ON(rate_index >= ARRAY_SIZE(wmi_rate_tbl)))
3325 			return 0;
3326 
3327 		ret = wmi_rate_tbl[(u32) rate_index][sgi];
3328 	}
3329 
3330 	return ret;
3331 }
3332 
3333 static int ath6kl_wmi_get_pmkid_list_event_rx(struct wmi *wmi, u8 *datap,
3334 					      u32 len)
3335 {
3336 	struct wmi_pmkid_list_reply *reply;
3337 	u32 expected_len;
3338 
3339 	if (len < sizeof(struct wmi_pmkid_list_reply))
3340 		return -EINVAL;
3341 
3342 	reply = (struct wmi_pmkid_list_reply *)datap;
3343 	expected_len = sizeof(reply->num_pmkid) +
3344 		le32_to_cpu(reply->num_pmkid) * WMI_PMKID_LEN;
3345 
3346 	if (len < expected_len)
3347 		return -EINVAL;
3348 
3349 	return 0;
3350 }
3351 
3352 static int ath6kl_wmi_addba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3353 					 struct ath6kl_vif *vif)
3354 {
3355 	struct wmi_addba_req_event *cmd = (struct wmi_addba_req_event *) datap;
3356 
3357 	aggr_recv_addba_req_evt(vif, cmd->tid,
3358 				le16_to_cpu(cmd->st_seq_no), cmd->win_sz);
3359 
3360 	return 0;
3361 }
3362 
3363 static int ath6kl_wmi_delba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3364 					 struct ath6kl_vif *vif)
3365 {
3366 	struct wmi_delba_event *cmd = (struct wmi_delba_event *) datap;
3367 
3368 	aggr_recv_delba_req_evt(vif, cmd->tid);
3369 
3370 	return 0;
3371 }
3372 
3373 /*  AP mode functions */
3374 
3375 int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, u8 if_idx,
3376 				 struct wmi_connect_cmd *p)
3377 {
3378 	struct sk_buff *skb;
3379 	struct wmi_connect_cmd *cm;
3380 	int res;
3381 
3382 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3383 	if (!skb)
3384 		return -ENOMEM;
3385 
3386 	cm = (struct wmi_connect_cmd *) skb->data;
3387 	memcpy(cm, p, sizeof(*cm));
3388 
3389 	res = ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_CONFIG_COMMIT_CMDID,
3390 				  NO_SYNC_WMIFLAG);
3391 	ath6kl_dbg(ATH6KL_DBG_WMI,
3392 		   "%s: nw_type=%u auth_mode=%u ch=%u ctrl_flags=0x%x-> res=%d\n",
3393 		   __func__, p->nw_type, p->auth_mode, le16_to_cpu(p->ch),
3394 		   le32_to_cpu(p->ctrl_flags), res);
3395 	return res;
3396 }
3397 
3398 int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 if_idx, u8 cmd, const u8 *mac,
3399 			   u16 reason)
3400 {
3401 	struct sk_buff *skb;
3402 	struct wmi_ap_set_mlme_cmd *cm;
3403 
3404 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3405 	if (!skb)
3406 		return -ENOMEM;
3407 
3408 	cm = (struct wmi_ap_set_mlme_cmd *) skb->data;
3409 	memcpy(cm->mac, mac, ETH_ALEN);
3410 	cm->reason = cpu_to_le16(reason);
3411 	cm->cmd = cmd;
3412 
3413 	ath6kl_dbg(ATH6KL_DBG_WMI, "ap_set_mlme: cmd=%d reason=%d\n", cm->cmd,
3414 		   cm->reason);
3415 
3416 	return ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_SET_MLME_CMDID,
3417 				   NO_SYNC_WMIFLAG);
3418 }
3419 
3420 int ath6kl_wmi_ap_hidden_ssid(struct wmi *wmi, u8 if_idx, bool enable)
3421 {
3422 	struct sk_buff *skb;
3423 	struct wmi_ap_hidden_ssid_cmd *cmd;
3424 
3425 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3426 	if (!skb)
3427 		return -ENOMEM;
3428 
3429 	cmd = (struct wmi_ap_hidden_ssid_cmd *) skb->data;
3430 	cmd->hidden_ssid = enable ? 1 : 0;
3431 
3432 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_HIDDEN_SSID_CMDID,
3433 				   NO_SYNC_WMIFLAG);
3434 }
3435 
3436 /* This command will be used to enable/disable AP uAPSD feature */
3437 int ath6kl_wmi_ap_set_apsd(struct wmi *wmi, u8 if_idx, u8 enable)
3438 {
3439 	struct wmi_ap_set_apsd_cmd *cmd;
3440 	struct sk_buff *skb;
3441 
3442 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3443 	if (!skb)
3444 		return -ENOMEM;
3445 
3446 	cmd = (struct wmi_ap_set_apsd_cmd *)skb->data;
3447 	cmd->enable = enable;
3448 
3449 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_APSD_CMDID,
3450 				   NO_SYNC_WMIFLAG);
3451 }
3452 
3453 int ath6kl_wmi_set_apsd_bfrd_traf(struct wmi *wmi, u8 if_idx,
3454 					     u16 aid, u16 bitmap, u32 flags)
3455 {
3456 	struct wmi_ap_apsd_buffered_traffic_cmd *cmd;
3457 	struct sk_buff *skb;
3458 
3459 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3460 	if (!skb)
3461 		return -ENOMEM;
3462 
3463 	cmd = (struct wmi_ap_apsd_buffered_traffic_cmd *)skb->data;
3464 	cmd->aid = cpu_to_le16(aid);
3465 	cmd->bitmap = cpu_to_le16(bitmap);
3466 	cmd->flags = cpu_to_le32(flags);
3467 
3468 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3469 				   WMI_AP_APSD_BUFFERED_TRAFFIC_CMDID,
3470 				   NO_SYNC_WMIFLAG);
3471 }
3472 
3473 static int ath6kl_wmi_pspoll_event_rx(struct wmi *wmi, u8 *datap, int len,
3474 				      struct ath6kl_vif *vif)
3475 {
3476 	struct wmi_pspoll_event *ev;
3477 
3478 	if (len < sizeof(struct wmi_pspoll_event))
3479 		return -EINVAL;
3480 
3481 	ev = (struct wmi_pspoll_event *) datap;
3482 
3483 	ath6kl_pspoll_event(vif, le16_to_cpu(ev->aid));
3484 
3485 	return 0;
3486 }
3487 
3488 static int ath6kl_wmi_dtimexpiry_event_rx(struct wmi *wmi, u8 *datap, int len,
3489 					  struct ath6kl_vif *vif)
3490 {
3491 	ath6kl_dtimexpiry_event(vif);
3492 
3493 	return 0;
3494 }
3495 
3496 int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u8 if_idx, u16 aid,
3497 			   bool flag)
3498 {
3499 	struct sk_buff *skb;
3500 	struct wmi_ap_set_pvb_cmd *cmd;
3501 	int ret;
3502 
3503 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_ap_set_pvb_cmd));
3504 	if (!skb)
3505 		return -ENOMEM;
3506 
3507 	cmd = (struct wmi_ap_set_pvb_cmd *) skb->data;
3508 	cmd->aid = cpu_to_le16(aid);
3509 	cmd->rsvd = cpu_to_le16(0);
3510 	cmd->flag = cpu_to_le32(flag);
3511 
3512 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_PVB_CMDID,
3513 				  NO_SYNC_WMIFLAG);
3514 
3515 	return ret;
3516 }
3517 
3518 int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 if_idx,
3519 				       u8 rx_meta_ver,
3520 				       bool rx_dot11_hdr, bool defrag_on_host)
3521 {
3522 	struct sk_buff *skb;
3523 	struct wmi_rx_frame_format_cmd *cmd;
3524 	int ret;
3525 
3526 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3527 	if (!skb)
3528 		return -ENOMEM;
3529 
3530 	cmd = (struct wmi_rx_frame_format_cmd *) skb->data;
3531 	cmd->dot11_hdr = rx_dot11_hdr ? 1 : 0;
3532 	cmd->defrag_on_host = defrag_on_host ? 1 : 0;
3533 	cmd->meta_ver = rx_meta_ver;
3534 
3535 	/* Delete the local aggr state, on host */
3536 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RX_FRAME_FORMAT_CMDID,
3537 				  NO_SYNC_WMIFLAG);
3538 
3539 	return ret;
3540 }
3541 
3542 int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type,
3543 			     const u8 *ie, u8 ie_len)
3544 {
3545 	struct sk_buff *skb;
3546 	struct wmi_set_appie_cmd *p;
3547 
3548 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3549 	if (!skb)
3550 		return -ENOMEM;
3551 
3552 	ath6kl_dbg(ATH6KL_DBG_WMI,
3553 		   "set_appie_cmd: mgmt_frm_type=%u ie_len=%u\n",
3554 		   mgmt_frm_type, ie_len);
3555 	p = (struct wmi_set_appie_cmd *) skb->data;
3556 	p->mgmt_frm_type = mgmt_frm_type;
3557 	p->ie_len = ie_len;
3558 
3559 	if (ie != NULL && ie_len > 0)
3560 		memcpy(p->ie_info, ie, ie_len);
3561 
3562 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_APPIE_CMDID,
3563 				   NO_SYNC_WMIFLAG);
3564 }
3565 
3566 int ath6kl_wmi_set_ie_cmd(struct wmi *wmi, u8 if_idx, u8 ie_id, u8 ie_field,
3567 			  const u8 *ie_info, u8 ie_len)
3568 {
3569 	struct sk_buff *skb;
3570 	struct wmi_set_ie_cmd *p;
3571 
3572 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3573 	if (!skb)
3574 		return -ENOMEM;
3575 
3576 	ath6kl_dbg(ATH6KL_DBG_WMI, "set_ie_cmd: ie_id=%u ie_ie_field=%u ie_len=%u\n",
3577 		   ie_id, ie_field, ie_len);
3578 	p = (struct wmi_set_ie_cmd *) skb->data;
3579 	p->ie_id = ie_id;
3580 	p->ie_field = ie_field;
3581 	p->ie_len = ie_len;
3582 	if (ie_info && ie_len > 0)
3583 		memcpy(p->ie_info, ie_info, ie_len);
3584 
3585 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IE_CMDID,
3586 				   NO_SYNC_WMIFLAG);
3587 }
3588 
3589 int ath6kl_wmi_disable_11b_rates_cmd(struct wmi *wmi, bool disable)
3590 {
3591 	struct sk_buff *skb;
3592 	struct wmi_disable_11b_rates_cmd *cmd;
3593 
3594 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3595 	if (!skb)
3596 		return -ENOMEM;
3597 
3598 	ath6kl_dbg(ATH6KL_DBG_WMI, "disable_11b_rates_cmd: disable=%u\n",
3599 		   disable);
3600 	cmd = (struct wmi_disable_11b_rates_cmd *) skb->data;
3601 	cmd->disable = disable ? 1 : 0;
3602 
3603 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_DISABLE_11B_RATES_CMDID,
3604 				   NO_SYNC_WMIFLAG);
3605 }
3606 
3607 int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx, u32 freq, u32 dur)
3608 {
3609 	struct sk_buff *skb;
3610 	struct wmi_remain_on_chnl_cmd *p;
3611 
3612 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3613 	if (!skb)
3614 		return -ENOMEM;
3615 
3616 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl_cmd: freq=%u dur=%u\n",
3617 		   freq, dur);
3618 	p = (struct wmi_remain_on_chnl_cmd *) skb->data;
3619 	p->freq = cpu_to_le32(freq);
3620 	p->duration = cpu_to_le32(dur);
3621 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_REMAIN_ON_CHNL_CMDID,
3622 				   NO_SYNC_WMIFLAG);
3623 }
3624 
3625 /* ath6kl_wmi_send_action_cmd is to be deprecated. Use
3626  * ath6kl_wmi_send_mgmt_cmd instead. The new function supports P2P
3627  * mgmt operations using station interface.
3628  */
3629 static int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3630 				      u32 freq, u32 wait, const u8 *data,
3631 				      u16 data_len)
3632 {
3633 	struct sk_buff *skb;
3634 	struct wmi_send_action_cmd *p;
3635 	u8 *buf;
3636 
3637 	if (wait)
3638 		return -EINVAL; /* Offload for wait not supported */
3639 
3640 	buf = kmemdup(data, data_len, GFP_KERNEL);
3641 	if (!buf)
3642 		return -ENOMEM;
3643 
3644 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3645 	if (!skb) {
3646 		kfree(buf);
3647 		return -ENOMEM;
3648 	}
3649 
3650 	kfree(wmi->last_mgmt_tx_frame);
3651 	wmi->last_mgmt_tx_frame = buf;
3652 	wmi->last_mgmt_tx_frame_len = data_len;
3653 
3654 	ath6kl_dbg(ATH6KL_DBG_WMI,
3655 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3656 		   id, freq, wait, data_len);
3657 	p = (struct wmi_send_action_cmd *) skb->data;
3658 	p->id = cpu_to_le32(id);
3659 	p->freq = cpu_to_le32(freq);
3660 	p->wait = cpu_to_le32(wait);
3661 	p->len = cpu_to_le16(data_len);
3662 	memcpy(p->data, data, data_len);
3663 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_ACTION_CMDID,
3664 				   NO_SYNC_WMIFLAG);
3665 }
3666 
3667 static int __ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3668 				      u32 freq, u32 wait, const u8 *data,
3669 				      u16 data_len, u32 no_cck)
3670 {
3671 	struct sk_buff *skb;
3672 	struct wmi_send_mgmt_cmd *p;
3673 	u8 *buf;
3674 
3675 	if (wait)
3676 		return -EINVAL; /* Offload for wait not supported */
3677 
3678 	buf = kmemdup(data, data_len, GFP_KERNEL);
3679 	if (!buf)
3680 		return -ENOMEM;
3681 
3682 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3683 	if (!skb) {
3684 		kfree(buf);
3685 		return -ENOMEM;
3686 	}
3687 
3688 	kfree(wmi->last_mgmt_tx_frame);
3689 	wmi->last_mgmt_tx_frame = buf;
3690 	wmi->last_mgmt_tx_frame_len = data_len;
3691 
3692 	ath6kl_dbg(ATH6KL_DBG_WMI,
3693 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3694 		   id, freq, wait, data_len);
3695 	p = (struct wmi_send_mgmt_cmd *) skb->data;
3696 	p->id = cpu_to_le32(id);
3697 	p->freq = cpu_to_le32(freq);
3698 	p->wait = cpu_to_le32(wait);
3699 	p->no_cck = cpu_to_le32(no_cck);
3700 	p->len = cpu_to_le16(data_len);
3701 	memcpy(p->data, data, data_len);
3702 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_MGMT_CMDID,
3703 				   NO_SYNC_WMIFLAG);
3704 }
3705 
3706 int ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id, u32 freq,
3707 				u32 wait, const u8 *data, u16 data_len,
3708 				u32 no_cck)
3709 {
3710 	int status;
3711 	struct ath6kl *ar = wmi->parent_dev;
3712 
3713 	if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
3714 		     ar->fw_capabilities)) {
3715 		/*
3716 		 * If capable of doing P2P mgmt operations using
3717 		 * station interface, send additional information like
3718 		 * supported rates to advertise and xmit rates for
3719 		 * probe requests
3720 		 */
3721 		status = __ath6kl_wmi_send_mgmt_cmd(ar->wmi, if_idx, id, freq,
3722 						    wait, data, data_len,
3723 						    no_cck);
3724 	} else {
3725 		status = ath6kl_wmi_send_action_cmd(ar->wmi, if_idx, id, freq,
3726 						    wait, data, data_len);
3727 	}
3728 
3729 	return status;
3730 }
3731 
3732 int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u8 if_idx, u32 freq,
3733 				       const u8 *dst, const u8 *data,
3734 				       u16 data_len)
3735 {
3736 	struct sk_buff *skb;
3737 	struct wmi_p2p_probe_response_cmd *p;
3738 	size_t cmd_len = sizeof(*p) + data_len;
3739 
3740 	if (data_len == 0)
3741 		cmd_len++; /* work around target minimum length requirement */
3742 
3743 	skb = ath6kl_wmi_get_new_buf(cmd_len);
3744 	if (!skb)
3745 		return -ENOMEM;
3746 
3747 	ath6kl_dbg(ATH6KL_DBG_WMI,
3748 		   "send_probe_response_cmd: freq=%u dst=%pM len=%u\n",
3749 		   freq, dst, data_len);
3750 	p = (struct wmi_p2p_probe_response_cmd *) skb->data;
3751 	p->freq = cpu_to_le32(freq);
3752 	memcpy(p->destination_addr, dst, ETH_ALEN);
3753 	p->len = cpu_to_le16(data_len);
3754 	memcpy(p->data, data, data_len);
3755 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3756 				   WMI_SEND_PROBE_RESPONSE_CMDID,
3757 				   NO_SYNC_WMIFLAG);
3758 }
3759 
3760 int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, u8 if_idx, bool enable)
3761 {
3762 	struct sk_buff *skb;
3763 	struct wmi_probe_req_report_cmd *p;
3764 
3765 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3766 	if (!skb)
3767 		return -ENOMEM;
3768 
3769 	ath6kl_dbg(ATH6KL_DBG_WMI, "probe_report_req_cmd: enable=%u\n",
3770 		   enable);
3771 	p = (struct wmi_probe_req_report_cmd *) skb->data;
3772 	p->enable = enable ? 1 : 0;
3773 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_PROBE_REQ_REPORT_CMDID,
3774 				   NO_SYNC_WMIFLAG);
3775 }
3776 
3777 int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u8 if_idx, u32 info_req_flags)
3778 {
3779 	struct sk_buff *skb;
3780 	struct wmi_get_p2p_info *p;
3781 
3782 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3783 	if (!skb)
3784 		return -ENOMEM;
3785 
3786 	ath6kl_dbg(ATH6KL_DBG_WMI, "info_req_cmd: flags=%x\n",
3787 		   info_req_flags);
3788 	p = (struct wmi_get_p2p_info *) skb->data;
3789 	p->info_req_flags = cpu_to_le32(info_req_flags);
3790 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_GET_P2P_INFO_CMDID,
3791 				   NO_SYNC_WMIFLAG);
3792 }
3793 
3794 int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx)
3795 {
3796 	ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl_cmd\n");
3797 	return ath6kl_wmi_simple_cmd(wmi, if_idx,
3798 				     WMI_CANCEL_REMAIN_ON_CHNL_CMDID);
3799 }
3800 
3801 int ath6kl_wmi_set_inact_period(struct wmi *wmi, u8 if_idx, int inact_timeout)
3802 {
3803 	struct sk_buff *skb;
3804 	struct wmi_set_inact_period_cmd *cmd;
3805 
3806 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3807 	if (!skb)
3808 		return -ENOMEM;
3809 
3810 	cmd = (struct wmi_set_inact_period_cmd *) skb->data;
3811 	cmd->inact_period = cpu_to_le32(inact_timeout);
3812 	cmd->num_null_func = 0;
3813 
3814 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_CONN_INACT_CMDID,
3815 				   NO_SYNC_WMIFLAG);
3816 }
3817 
3818 static void ath6kl_wmi_hb_challenge_resp_event(struct wmi *wmi, u8 *datap,
3819 					       int len)
3820 {
3821 	struct wmix_hb_challenge_resp_cmd *cmd;
3822 
3823 	if (len < sizeof(struct wmix_hb_challenge_resp_cmd))
3824 		return;
3825 
3826 	cmd = (struct wmix_hb_challenge_resp_cmd *) datap;
3827 	ath6kl_recovery_hb_event(wmi->parent_dev,
3828 				 le32_to_cpu(cmd->cookie));
3829 }
3830 
3831 static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb)
3832 {
3833 	struct wmix_cmd_hdr *cmd;
3834 	u32 len;
3835 	u16 id;
3836 	u8 *datap;
3837 	int ret = 0;
3838 
3839 	if (skb->len < sizeof(struct wmix_cmd_hdr)) {
3840 		ath6kl_err("bad packet 1\n");
3841 		return -EINVAL;
3842 	}
3843 
3844 	cmd = (struct wmix_cmd_hdr *) skb->data;
3845 	id = le32_to_cpu(cmd->cmd_id);
3846 
3847 	skb_pull(skb, sizeof(struct wmix_cmd_hdr));
3848 
3849 	datap = skb->data;
3850 	len = skb->len;
3851 
3852 	switch (id) {
3853 	case WMIX_HB_CHALLENGE_RESP_EVENTID:
3854 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event hb challenge resp\n");
3855 		ath6kl_wmi_hb_challenge_resp_event(wmi, datap, len);
3856 		break;
3857 	case WMIX_DBGLOG_EVENTID:
3858 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event dbglog len %d\n", len);
3859 		ath6kl_debug_fwlog_event(wmi->parent_dev, datap, len);
3860 		break;
3861 	default:
3862 		ath6kl_warn("unknown cmd id 0x%x\n", id);
3863 		ret = -EINVAL;
3864 		break;
3865 	}
3866 
3867 	return ret;
3868 }
3869 
3870 static int ath6kl_wmi_roam_tbl_event_rx(struct wmi *wmi, u8 *datap, int len)
3871 {
3872 	return ath6kl_debug_roam_tbl_event(wmi->parent_dev, datap, len);
3873 }
3874 
3875 /* Process interface specific wmi events, caller would free the datap */
3876 static int ath6kl_wmi_proc_events_vif(struct wmi *wmi, u16 if_idx, u16 cmd_id,
3877 					u8 *datap, u32 len)
3878 {
3879 	struct ath6kl_vif *vif;
3880 
3881 	vif = ath6kl_get_vif_by_index(wmi->parent_dev, if_idx);
3882 	if (!vif) {
3883 		ath6kl_dbg(ATH6KL_DBG_WMI,
3884 			   "Wmi event for unavailable vif, vif_index:%d\n",
3885 			    if_idx);
3886 		return -EINVAL;
3887 	}
3888 
3889 	switch (cmd_id) {
3890 	case WMI_CONNECT_EVENTID:
3891 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CONNECT_EVENTID\n");
3892 		return ath6kl_wmi_connect_event_rx(wmi, datap, len, vif);
3893 	case WMI_DISCONNECT_EVENTID:
3894 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DISCONNECT_EVENTID\n");
3895 		return ath6kl_wmi_disconnect_event_rx(wmi, datap, len, vif);
3896 	case WMI_TKIP_MICERR_EVENTID:
3897 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TKIP_MICERR_EVENTID\n");
3898 		return ath6kl_wmi_tkip_micerr_event_rx(wmi, datap, len, vif);
3899 	case WMI_BSSINFO_EVENTID:
3900 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_BSSINFO_EVENTID\n");
3901 		return ath6kl_wmi_bssinfo_event_rx(wmi, datap, len, vif);
3902 	case WMI_NEIGHBOR_REPORT_EVENTID:
3903 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_NEIGHBOR_REPORT_EVENTID\n");
3904 		return ath6kl_wmi_neighbor_report_event_rx(wmi, datap, len,
3905 							   vif);
3906 	case WMI_SCAN_COMPLETE_EVENTID:
3907 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SCAN_COMPLETE_EVENTID\n");
3908 		return ath6kl_wmi_scan_complete_rx(wmi, datap, len, vif);
3909 	case WMI_REPORT_STATISTICS_EVENTID:
3910 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_STATISTICS_EVENTID\n");
3911 		return ath6kl_wmi_stats_event_rx(wmi, datap, len, vif);
3912 	case WMI_CAC_EVENTID:
3913 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CAC_EVENTID\n");
3914 		return ath6kl_wmi_cac_event_rx(wmi, datap, len, vif);
3915 	case WMI_PSPOLL_EVENTID:
3916 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSPOLL_EVENTID\n");
3917 		return ath6kl_wmi_pspoll_event_rx(wmi, datap, len, vif);
3918 	case WMI_DTIMEXPIRY_EVENTID:
3919 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DTIMEXPIRY_EVENTID\n");
3920 		return ath6kl_wmi_dtimexpiry_event_rx(wmi, datap, len, vif);
3921 	case WMI_ADDBA_REQ_EVENTID:
3922 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_REQ_EVENTID\n");
3923 		return ath6kl_wmi_addba_req_event_rx(wmi, datap, len, vif);
3924 	case WMI_DELBA_REQ_EVENTID:
3925 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DELBA_REQ_EVENTID\n");
3926 		return ath6kl_wmi_delba_req_event_rx(wmi, datap, len, vif);
3927 	case WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID:
3928 		ath6kl_dbg(ATH6KL_DBG_WMI,
3929 			   "WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID");
3930 		return ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(wmi, vif);
3931 	case WMI_REMAIN_ON_CHNL_EVENTID:
3932 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REMAIN_ON_CHNL_EVENTID\n");
3933 		return ath6kl_wmi_remain_on_chnl_event_rx(wmi, datap, len, vif);
3934 	case WMI_CANCEL_REMAIN_ON_CHNL_EVENTID:
3935 		ath6kl_dbg(ATH6KL_DBG_WMI,
3936 			   "WMI_CANCEL_REMAIN_ON_CHNL_EVENTID\n");
3937 		return ath6kl_wmi_cancel_remain_on_chnl_event_rx(wmi, datap,
3938 								 len, vif);
3939 	case WMI_TX_STATUS_EVENTID:
3940 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_STATUS_EVENTID\n");
3941 		return ath6kl_wmi_tx_status_event_rx(wmi, datap, len, vif);
3942 	case WMI_RX_PROBE_REQ_EVENTID:
3943 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_PROBE_REQ_EVENTID\n");
3944 		return ath6kl_wmi_rx_probe_req_event_rx(wmi, datap, len, vif);
3945 	case WMI_RX_ACTION_EVENTID:
3946 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_ACTION_EVENTID\n");
3947 		return ath6kl_wmi_rx_action_event_rx(wmi, datap, len, vif);
3948 	case WMI_TXE_NOTIFY_EVENTID:
3949 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TXE_NOTIFY_EVENTID\n");
3950 		return ath6kl_wmi_txe_notify_event_rx(wmi, datap, len, vif);
3951 	default:
3952 		ath6kl_dbg(ATH6KL_DBG_WMI, "unknown cmd id 0x%x\n", cmd_id);
3953 		return -EINVAL;
3954 	}
3955 
3956 	return 0;
3957 }
3958 
3959 static int ath6kl_wmi_proc_events(struct wmi *wmi, struct sk_buff *skb)
3960 {
3961 	struct wmi_cmd_hdr *cmd;
3962 	int ret = 0;
3963 	u32 len;
3964 	u16 id;
3965 	u8 if_idx;
3966 	u8 *datap;
3967 
3968 	cmd = (struct wmi_cmd_hdr *) skb->data;
3969 	id = le16_to_cpu(cmd->cmd_id);
3970 	if_idx = le16_to_cpu(cmd->info1) & WMI_CMD_HDR_IF_ID_MASK;
3971 
3972 	skb_pull(skb, sizeof(struct wmi_cmd_hdr));
3973 	datap = skb->data;
3974 	len = skb->len;
3975 
3976 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi rx id %d len %d\n", id, len);
3977 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi rx ",
3978 			datap, len);
3979 
3980 	switch (id) {
3981 	case WMI_GET_BITRATE_CMDID:
3982 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_BITRATE_CMDID\n");
3983 		ret = ath6kl_wmi_bitrate_reply_rx(wmi, datap, len);
3984 		break;
3985 	case WMI_GET_CHANNEL_LIST_CMDID:
3986 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_CHANNEL_LIST_CMDID\n");
3987 		ret = ath6kl_wmi_ch_list_reply_rx(wmi, datap, len);
3988 		break;
3989 	case WMI_GET_TX_PWR_CMDID:
3990 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_TX_PWR_CMDID\n");
3991 		ret = ath6kl_wmi_tx_pwr_reply_rx(wmi, datap, len);
3992 		break;
3993 	case WMI_READY_EVENTID:
3994 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_READY_EVENTID\n");
3995 		ret = ath6kl_wmi_ready_event_rx(wmi, datap, len);
3996 		break;
3997 	case WMI_PEER_NODE_EVENTID:
3998 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PEER_NODE_EVENTID\n");
3999 		ret = ath6kl_wmi_peer_node_event_rx(wmi, datap, len);
4000 		break;
4001 	case WMI_REGDOMAIN_EVENTID:
4002 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REGDOMAIN_EVENTID\n");
4003 		ath6kl_wmi_regdomain_event(wmi, datap, len);
4004 		break;
4005 	case WMI_PSTREAM_TIMEOUT_EVENTID:
4006 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSTREAM_TIMEOUT_EVENTID\n");
4007 		ret = ath6kl_wmi_pstream_timeout_event_rx(wmi, datap, len);
4008 		break;
4009 	case WMI_CMDERROR_EVENTID:
4010 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CMDERROR_EVENTID\n");
4011 		ret = ath6kl_wmi_error_event_rx(wmi, datap, len);
4012 		break;
4013 	case WMI_RSSI_THRESHOLD_EVENTID:
4014 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RSSI_THRESHOLD_EVENTID\n");
4015 		ret = ath6kl_wmi_rssi_threshold_event_rx(wmi, datap, len);
4016 		break;
4017 	case WMI_ERROR_REPORT_EVENTID:
4018 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ERROR_REPORT_EVENTID\n");
4019 		break;
4020 	case WMI_OPT_RX_FRAME_EVENTID:
4021 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_OPT_RX_FRAME_EVENTID\n");
4022 		/* this event has been deprecated */
4023 		break;
4024 	case WMI_REPORT_ROAM_TBL_EVENTID:
4025 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_TBL_EVENTID\n");
4026 		ret = ath6kl_wmi_roam_tbl_event_rx(wmi, datap, len);
4027 		break;
4028 	case WMI_EXTENSION_EVENTID:
4029 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_EXTENSION_EVENTID\n");
4030 		ret = ath6kl_wmi_control_rx_xtnd(wmi, skb);
4031 		break;
4032 	case WMI_CHANNEL_CHANGE_EVENTID:
4033 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CHANNEL_CHANGE_EVENTID\n");
4034 		break;
4035 	case WMI_REPORT_ROAM_DATA_EVENTID:
4036 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_DATA_EVENTID\n");
4037 		break;
4038 	case WMI_TEST_EVENTID:
4039 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TEST_EVENTID\n");
4040 		ret = ath6kl_wmi_test_rx(wmi, datap, len);
4041 		break;
4042 	case WMI_GET_FIXRATES_CMDID:
4043 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_FIXRATES_CMDID\n");
4044 		ret = ath6kl_wmi_ratemask_reply_rx(wmi, datap, len);
4045 		break;
4046 	case WMI_TX_RETRY_ERR_EVENTID:
4047 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_RETRY_ERR_EVENTID\n");
4048 		break;
4049 	case WMI_SNR_THRESHOLD_EVENTID:
4050 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SNR_THRESHOLD_EVENTID\n");
4051 		ret = ath6kl_wmi_snr_threshold_event_rx(wmi, datap, len);
4052 		break;
4053 	case WMI_LQ_THRESHOLD_EVENTID:
4054 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_LQ_THRESHOLD_EVENTID\n");
4055 		break;
4056 	case WMI_APLIST_EVENTID:
4057 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_APLIST_EVENTID\n");
4058 		ret = ath6kl_wmi_aplist_event_rx(wmi, datap, len);
4059 		break;
4060 	case WMI_GET_KEEPALIVE_CMDID:
4061 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_KEEPALIVE_CMDID\n");
4062 		ret = ath6kl_wmi_keepalive_reply_rx(wmi, datap, len);
4063 		break;
4064 	case WMI_GET_WOW_LIST_EVENTID:
4065 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_WOW_LIST_EVENTID\n");
4066 		break;
4067 	case WMI_GET_PMKID_LIST_EVENTID:
4068 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_PMKID_LIST_EVENTID\n");
4069 		ret = ath6kl_wmi_get_pmkid_list_event_rx(wmi, datap, len);
4070 		break;
4071 	case WMI_SET_PARAMS_REPLY_EVENTID:
4072 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SET_PARAMS_REPLY_EVENTID\n");
4073 		break;
4074 	case WMI_ADDBA_RESP_EVENTID:
4075 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_RESP_EVENTID\n");
4076 		break;
4077 	case WMI_REPORT_BTCOEX_CONFIG_EVENTID:
4078 		ath6kl_dbg(ATH6KL_DBG_WMI,
4079 			   "WMI_REPORT_BTCOEX_CONFIG_EVENTID\n");
4080 		break;
4081 	case WMI_REPORT_BTCOEX_STATS_EVENTID:
4082 		ath6kl_dbg(ATH6KL_DBG_WMI,
4083 			   "WMI_REPORT_BTCOEX_STATS_EVENTID\n");
4084 		break;
4085 	case WMI_TX_COMPLETE_EVENTID:
4086 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_COMPLETE_EVENTID\n");
4087 		ret = ath6kl_wmi_tx_complete_event_rx(datap, len);
4088 		break;
4089 	case WMI_P2P_CAPABILITIES_EVENTID:
4090 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_CAPABILITIES_EVENTID\n");
4091 		ret = ath6kl_wmi_p2p_capabilities_event_rx(datap, len);
4092 		break;
4093 	case WMI_P2P_INFO_EVENTID:
4094 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_INFO_EVENTID\n");
4095 		ret = ath6kl_wmi_p2p_info_event_rx(datap, len);
4096 		break;
4097 	default:
4098 		/* may be the event is interface specific */
4099 		ret = ath6kl_wmi_proc_events_vif(wmi, if_idx, id, datap, len);
4100 		break;
4101 	}
4102 
4103 	dev_kfree_skb(skb);
4104 	return ret;
4105 }
4106 
4107 /* Control Path */
4108 int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb)
4109 {
4110 	if (WARN_ON(skb == NULL))
4111 		return -EINVAL;
4112 
4113 	if (skb->len < sizeof(struct wmi_cmd_hdr)) {
4114 		ath6kl_err("bad packet 1\n");
4115 		dev_kfree_skb(skb);
4116 		return -EINVAL;
4117 	}
4118 
4119 	trace_ath6kl_wmi_event(skb->data, skb->len);
4120 
4121 	return ath6kl_wmi_proc_events(wmi, skb);
4122 }
4123 
4124 void ath6kl_wmi_reset(struct wmi *wmi)
4125 {
4126 	spin_lock_bh(&wmi->lock);
4127 
4128 	wmi->fat_pipe_exist = 0;
4129 	memset(wmi->stream_exist_for_ac, 0, sizeof(wmi->stream_exist_for_ac));
4130 
4131 	spin_unlock_bh(&wmi->lock);
4132 }
4133 
4134 void *ath6kl_wmi_init(struct ath6kl *dev)
4135 {
4136 	struct wmi *wmi;
4137 
4138 	wmi = kzalloc(sizeof(struct wmi), GFP_KERNEL);
4139 	if (!wmi)
4140 		return NULL;
4141 
4142 	spin_lock_init(&wmi->lock);
4143 
4144 	wmi->parent_dev = dev;
4145 
4146 	wmi->pwr_mode = REC_POWER;
4147 
4148 	ath6kl_wmi_reset(wmi);
4149 
4150 	return wmi;
4151 }
4152 
4153 void ath6kl_wmi_shutdown(struct wmi *wmi)
4154 {
4155 	if (!wmi)
4156 		return;
4157 
4158 	kfree(wmi->last_mgmt_tx_frame);
4159 	kfree(wmi);
4160 }
4161