xref: /openbmc/linux/drivers/net/wireless/ath/ath6kl/wmi.c (revision 6aa7de05)
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 	ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
780 			    NO_SYNC_WMIFLAG);
781 
782 	return 0;
783 }
784 
785 int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid)
786 {
787 	struct sk_buff *skb;
788 	struct roam_ctrl_cmd *cmd;
789 
790 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
791 	if (!skb)
792 		return -ENOMEM;
793 
794 	cmd = (struct roam_ctrl_cmd *) skb->data;
795 
796 	memcpy(cmd->info.bssid, bssid, ETH_ALEN);
797 	cmd->roam_ctrl = WMI_FORCE_ROAM;
798 
799 	ath6kl_dbg(ATH6KL_DBG_WMI, "force roam to %pM\n", bssid);
800 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
801 				   NO_SYNC_WMIFLAG);
802 }
803 
804 int ath6kl_wmi_ap_set_beacon_intvl_cmd(struct wmi *wmi, u8 if_idx,
805 				       u32 beacon_intvl)
806 {
807 	struct sk_buff *skb;
808 	struct set_beacon_int_cmd *cmd;
809 
810 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
811 	if (!skb)
812 		return -ENOMEM;
813 
814 	cmd = (struct set_beacon_int_cmd *) skb->data;
815 
816 	cmd->beacon_intvl = cpu_to_le32(beacon_intvl);
817 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
818 				   WMI_SET_BEACON_INT_CMDID, NO_SYNC_WMIFLAG);
819 }
820 
821 int ath6kl_wmi_ap_set_dtim_cmd(struct wmi *wmi, u8 if_idx, u32 dtim_period)
822 {
823 	struct sk_buff *skb;
824 	struct set_dtim_cmd *cmd;
825 
826 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
827 	if (!skb)
828 		return -ENOMEM;
829 
830 	cmd = (struct set_dtim_cmd *) skb->data;
831 
832 	cmd->dtim_period = cpu_to_le32(dtim_period);
833 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
834 				   WMI_AP_SET_DTIM_CMDID, NO_SYNC_WMIFLAG);
835 }
836 
837 int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode)
838 {
839 	struct sk_buff *skb;
840 	struct roam_ctrl_cmd *cmd;
841 
842 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
843 	if (!skb)
844 		return -ENOMEM;
845 
846 	cmd = (struct roam_ctrl_cmd *) skb->data;
847 
848 	cmd->info.roam_mode = mode;
849 	cmd->roam_ctrl = WMI_SET_ROAM_MODE;
850 
851 	ath6kl_dbg(ATH6KL_DBG_WMI, "set roam mode %d\n", mode);
852 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
853 				   NO_SYNC_WMIFLAG);
854 }
855 
856 static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len,
857 				       struct ath6kl_vif *vif)
858 {
859 	struct wmi_connect_event *ev;
860 	u8 *pie, *peie;
861 
862 	if (len < sizeof(struct wmi_connect_event))
863 		return -EINVAL;
864 
865 	ev = (struct wmi_connect_event *) datap;
866 
867 	if (vif->nw_type == AP_NETWORK) {
868 		/* AP mode start/STA connected event */
869 		struct net_device *dev = vif->ndev;
870 		if (memcmp(dev->dev_addr, ev->u.ap_bss.bssid, ETH_ALEN) == 0) {
871 			ath6kl_dbg(ATH6KL_DBG_WMI,
872 				   "%s: freq %d bssid %pM (AP started)\n",
873 				   __func__, le16_to_cpu(ev->u.ap_bss.ch),
874 				   ev->u.ap_bss.bssid);
875 			ath6kl_connect_ap_mode_bss(
876 				vif, le16_to_cpu(ev->u.ap_bss.ch));
877 		} else {
878 			ath6kl_dbg(ATH6KL_DBG_WMI,
879 				   "%s: aid %u mac_addr %pM auth=%u keymgmt=%u cipher=%u apsd_info=%u (STA connected)\n",
880 				   __func__, ev->u.ap_sta.aid,
881 				   ev->u.ap_sta.mac_addr,
882 				   ev->u.ap_sta.auth,
883 				   ev->u.ap_sta.keymgmt,
884 				   le16_to_cpu(ev->u.ap_sta.cipher),
885 				   ev->u.ap_sta.apsd_info);
886 
887 			ath6kl_connect_ap_mode_sta(
888 				vif, ev->u.ap_sta.aid, ev->u.ap_sta.mac_addr,
889 				ev->u.ap_sta.keymgmt,
890 				le16_to_cpu(ev->u.ap_sta.cipher),
891 				ev->u.ap_sta.auth, ev->assoc_req_len,
892 				ev->assoc_info + ev->beacon_ie_len,
893 				ev->u.ap_sta.apsd_info);
894 		}
895 		return 0;
896 	}
897 
898 	/* STA/IBSS mode connection event */
899 
900 	ath6kl_dbg(ATH6KL_DBG_WMI,
901 		   "wmi event connect freq %d bssid %pM listen_intvl %d beacon_intvl %d type %d\n",
902 		   le16_to_cpu(ev->u.sta.ch), ev->u.sta.bssid,
903 		   le16_to_cpu(ev->u.sta.listen_intvl),
904 		   le16_to_cpu(ev->u.sta.beacon_intvl),
905 		   le32_to_cpu(ev->u.sta.nw_type));
906 
907 	/* Start of assoc rsp IEs */
908 	pie = ev->assoc_info + ev->beacon_ie_len +
909 	      ev->assoc_req_len + (sizeof(u16) * 3); /* capinfo, status, aid */
910 
911 	/* End of assoc rsp IEs */
912 	peie = ev->assoc_info + ev->beacon_ie_len + ev->assoc_req_len +
913 	    ev->assoc_resp_len;
914 
915 	while (pie < peie) {
916 		switch (*pie) {
917 		case WLAN_EID_VENDOR_SPECIFIC:
918 			if (pie[1] > 3 && pie[2] == 0x00 && pie[3] == 0x50 &&
919 			    pie[4] == 0xf2 && pie[5] == WMM_OUI_TYPE) {
920 				/* WMM OUT (00:50:F2) */
921 				if (pie[1] > 5 &&
922 				    pie[6] == WMM_PARAM_OUI_SUBTYPE)
923 					wmi->is_wmm_enabled = true;
924 			}
925 			break;
926 		}
927 
928 		if (wmi->is_wmm_enabled)
929 			break;
930 
931 		pie += pie[1] + 2;
932 	}
933 
934 	ath6kl_connect_event(vif, le16_to_cpu(ev->u.sta.ch),
935 			     ev->u.sta.bssid,
936 			     le16_to_cpu(ev->u.sta.listen_intvl),
937 			     le16_to_cpu(ev->u.sta.beacon_intvl),
938 			     le32_to_cpu(ev->u.sta.nw_type),
939 			     ev->beacon_ie_len, ev->assoc_req_len,
940 			     ev->assoc_resp_len, ev->assoc_info);
941 
942 	return 0;
943 }
944 
945 static struct country_code_to_enum_rd *
946 ath6kl_regd_find_country(u16 countryCode)
947 {
948 	int i;
949 
950 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
951 		if (allCountries[i].countryCode == countryCode)
952 			return &allCountries[i];
953 	}
954 
955 	return NULL;
956 }
957 
958 static struct reg_dmn_pair_mapping *
959 ath6kl_get_regpair(u16 regdmn)
960 {
961 	int i;
962 
963 	if (regdmn == NO_ENUMRD)
964 		return NULL;
965 
966 	for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) {
967 		if (regDomainPairs[i].reg_domain == regdmn)
968 			return &regDomainPairs[i];
969 	}
970 
971 	return NULL;
972 }
973 
974 static struct country_code_to_enum_rd *
975 ath6kl_regd_find_country_by_rd(u16 regdmn)
976 {
977 	int i;
978 
979 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
980 		if (allCountries[i].regDmnEnum == regdmn)
981 			return &allCountries[i];
982 	}
983 
984 	return NULL;
985 }
986 
987 static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len)
988 {
989 	struct ath6kl_wmi_regdomain *ev;
990 	struct country_code_to_enum_rd *country = NULL;
991 	struct reg_dmn_pair_mapping *regpair = NULL;
992 	char alpha2[2];
993 	u32 reg_code;
994 
995 	ev = (struct ath6kl_wmi_regdomain *) datap;
996 	reg_code = le32_to_cpu(ev->reg_code);
997 
998 	if ((reg_code >> ATH6KL_COUNTRY_RD_SHIFT) & COUNTRY_ERD_FLAG) {
999 		country = ath6kl_regd_find_country((u16) reg_code);
1000 	} else if (!(((u16) reg_code & WORLD_SKU_MASK) == WORLD_SKU_PREFIX)) {
1001 		regpair = ath6kl_get_regpair((u16) reg_code);
1002 		country = ath6kl_regd_find_country_by_rd((u16) reg_code);
1003 		if (regpair)
1004 			ath6kl_dbg(ATH6KL_DBG_WMI, "Regpair used: 0x%0x\n",
1005 				   regpair->reg_domain);
1006 		else
1007 			ath6kl_warn("Regpair not found reg_code 0x%0x\n",
1008 				    reg_code);
1009 	}
1010 
1011 	if (country && wmi->parent_dev->wiphy_registered) {
1012 		alpha2[0] = country->isoName[0];
1013 		alpha2[1] = country->isoName[1];
1014 
1015 		regulatory_hint(wmi->parent_dev->wiphy, alpha2);
1016 
1017 		ath6kl_dbg(ATH6KL_DBG_WMI, "Country alpha2 being used: %c%c\n",
1018 			   alpha2[0], alpha2[1]);
1019 	}
1020 }
1021 
1022 static int ath6kl_wmi_disconnect_event_rx(struct wmi *wmi, u8 *datap, int len,
1023 					  struct ath6kl_vif *vif)
1024 {
1025 	struct wmi_disconnect_event *ev;
1026 	wmi->traffic_class = 100;
1027 
1028 	if (len < sizeof(struct wmi_disconnect_event))
1029 		return -EINVAL;
1030 
1031 	ev = (struct wmi_disconnect_event *) datap;
1032 
1033 	ath6kl_dbg(ATH6KL_DBG_WMI,
1034 		   "wmi event disconnect proto_reason %d bssid %pM wmi_reason %d assoc_resp_len %d\n",
1035 		   le16_to_cpu(ev->proto_reason_status), ev->bssid,
1036 		   ev->disconn_reason, ev->assoc_resp_len);
1037 
1038 	wmi->is_wmm_enabled = false;
1039 
1040 	ath6kl_disconnect_event(vif, ev->disconn_reason,
1041 				ev->bssid, ev->assoc_resp_len, ev->assoc_info,
1042 				le16_to_cpu(ev->proto_reason_status));
1043 
1044 	return 0;
1045 }
1046 
1047 static int ath6kl_wmi_peer_node_event_rx(struct wmi *wmi, u8 *datap, int len)
1048 {
1049 	struct wmi_peer_node_event *ev;
1050 
1051 	if (len < sizeof(struct wmi_peer_node_event))
1052 		return -EINVAL;
1053 
1054 	ev = (struct wmi_peer_node_event *) datap;
1055 
1056 	if (ev->event_code == PEER_NODE_JOIN_EVENT)
1057 		ath6kl_dbg(ATH6KL_DBG_WMI, "joined node with mac addr: %pM\n",
1058 			   ev->peer_mac_addr);
1059 	else if (ev->event_code == PEER_NODE_LEAVE_EVENT)
1060 		ath6kl_dbg(ATH6KL_DBG_WMI, "left node with mac addr: %pM\n",
1061 			   ev->peer_mac_addr);
1062 
1063 	return 0;
1064 }
1065 
1066 static int ath6kl_wmi_tkip_micerr_event_rx(struct wmi *wmi, u8 *datap, int len,
1067 					   struct ath6kl_vif *vif)
1068 {
1069 	struct wmi_tkip_micerr_event *ev;
1070 
1071 	if (len < sizeof(struct wmi_tkip_micerr_event))
1072 		return -EINVAL;
1073 
1074 	ev = (struct wmi_tkip_micerr_event *) datap;
1075 
1076 	ath6kl_tkip_micerr_event(vif, ev->key_id, ev->is_mcast);
1077 
1078 	return 0;
1079 }
1080 
1081 void ath6kl_wmi_sscan_timer(unsigned long ptr)
1082 {
1083 	struct ath6kl_vif *vif = (struct ath6kl_vif *) ptr;
1084 
1085 	cfg80211_sched_scan_results(vif->ar->wiphy, 0);
1086 }
1087 
1088 static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len,
1089 				       struct ath6kl_vif *vif)
1090 {
1091 	struct wmi_bss_info_hdr2 *bih;
1092 	u8 *buf;
1093 	struct ieee80211_channel *channel;
1094 	struct ath6kl *ar = wmi->parent_dev;
1095 	struct cfg80211_bss *bss;
1096 
1097 	if (len <= sizeof(struct wmi_bss_info_hdr2))
1098 		return -EINVAL;
1099 
1100 	bih = (struct wmi_bss_info_hdr2 *) datap;
1101 	buf = datap + sizeof(struct wmi_bss_info_hdr2);
1102 	len -= sizeof(struct wmi_bss_info_hdr2);
1103 
1104 	ath6kl_dbg(ATH6KL_DBG_WMI,
1105 		   "bss info evt - ch %u, snr %d, rssi %d, bssid \"%pM\" "
1106 		   "frame_type=%d\n",
1107 		   bih->ch, bih->snr, bih->snr - 95, bih->bssid,
1108 		   bih->frame_type);
1109 
1110 	if (bih->frame_type != BEACON_FTYPE &&
1111 	    bih->frame_type != PROBERESP_FTYPE)
1112 		return 0; /* Only update BSS table for now */
1113 
1114 	if (bih->frame_type == BEACON_FTYPE &&
1115 	    test_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags)) {
1116 		clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
1117 		ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1118 					 NONE_BSS_FILTER, 0);
1119 	}
1120 
1121 	channel = ieee80211_get_channel(ar->wiphy, le16_to_cpu(bih->ch));
1122 	if (channel == NULL)
1123 		return -EINVAL;
1124 
1125 	if (len < 8 + 2 + 2)
1126 		return -EINVAL;
1127 
1128 	if (bih->frame_type == BEACON_FTYPE &&
1129 	    test_bit(CONNECTED, &vif->flags) &&
1130 	    memcmp(bih->bssid, vif->bssid, ETH_ALEN) == 0) {
1131 		const u8 *tim;
1132 		tim = cfg80211_find_ie(WLAN_EID_TIM, buf + 8 + 2 + 2,
1133 				       len - 8 - 2 - 2);
1134 		if (tim && tim[1] >= 2) {
1135 			vif->assoc_bss_dtim_period = tim[3];
1136 			set_bit(DTIM_PERIOD_AVAIL, &vif->flags);
1137 		}
1138 	}
1139 
1140 	bss = cfg80211_inform_bss(ar->wiphy, channel,
1141 				  bih->frame_type == BEACON_FTYPE ?
1142 					CFG80211_BSS_FTYPE_BEACON :
1143 					CFG80211_BSS_FTYPE_PRESP,
1144 				  bih->bssid, get_unaligned_le64((__le64 *)buf),
1145 				  get_unaligned_le16(((__le16 *)buf) + 5),
1146 				  get_unaligned_le16(((__le16 *)buf) + 4),
1147 				  buf + 8 + 2 + 2, len - 8 - 2 - 2,
1148 				  (bih->snr - 95) * 100, GFP_ATOMIC);
1149 	if (bss == NULL)
1150 		return -ENOMEM;
1151 	cfg80211_put_bss(ar->wiphy, bss);
1152 
1153 	/*
1154 	 * Firmware doesn't return any event when scheduled scan has
1155 	 * finished, so we need to use a timer to find out when there are
1156 	 * no more results.
1157 	 *
1158 	 * The timer is started from the first bss info received, otherwise
1159 	 * the timer would not ever fire if the scan interval is short
1160 	 * enough.
1161 	 */
1162 	if (test_bit(SCHED_SCANNING, &vif->flags) &&
1163 	    !timer_pending(&vif->sched_scan_timer)) {
1164 		mod_timer(&vif->sched_scan_timer, jiffies +
1165 			  msecs_to_jiffies(ATH6KL_SCHED_SCAN_RESULT_DELAY));
1166 	}
1167 
1168 	return 0;
1169 }
1170 
1171 /* Inactivity timeout of a fatpipe(pstream) at the target */
1172 static int ath6kl_wmi_pstream_timeout_event_rx(struct wmi *wmi, u8 *datap,
1173 					       int len)
1174 {
1175 	struct wmi_pstream_timeout_event *ev;
1176 
1177 	if (len < sizeof(struct wmi_pstream_timeout_event))
1178 		return -EINVAL;
1179 
1180 	ev = (struct wmi_pstream_timeout_event *) datap;
1181 
1182 	/*
1183 	 * When the pstream (fat pipe == AC) timesout, it means there were
1184 	 * no thinStreams within this pstream & it got implicitly created
1185 	 * due to data flow on this AC. We start the inactivity timer only
1186 	 * for implicitly created pstream. Just reset the host state.
1187 	 */
1188 	spin_lock_bh(&wmi->lock);
1189 	wmi->stream_exist_for_ac[ev->traffic_class] = 0;
1190 	wmi->fat_pipe_exist &= ~(1 << ev->traffic_class);
1191 	spin_unlock_bh(&wmi->lock);
1192 
1193 	/* Indicate inactivity to driver layer for this fatpipe (pstream) */
1194 	ath6kl_indicate_tx_activity(wmi->parent_dev, ev->traffic_class, false);
1195 
1196 	return 0;
1197 }
1198 
1199 static int ath6kl_wmi_bitrate_reply_rx(struct wmi *wmi, u8 *datap, int len)
1200 {
1201 	struct wmi_bit_rate_reply *reply;
1202 	s32 rate;
1203 	u32 sgi, index;
1204 
1205 	if (len < sizeof(struct wmi_bit_rate_reply))
1206 		return -EINVAL;
1207 
1208 	reply = (struct wmi_bit_rate_reply *) datap;
1209 
1210 	ath6kl_dbg(ATH6KL_DBG_WMI, "rateindex %d\n", reply->rate_index);
1211 
1212 	if (reply->rate_index == (s8) RATE_AUTO) {
1213 		rate = RATE_AUTO;
1214 	} else {
1215 		index = reply->rate_index & 0x7f;
1216 		if (WARN_ON_ONCE(index > (RATE_MCS_7_40 + 1)))
1217 			return -EINVAL;
1218 
1219 		sgi = (reply->rate_index & 0x80) ? 1 : 0;
1220 		rate = wmi_rate_tbl[index][sgi];
1221 	}
1222 
1223 	ath6kl_wakeup_event(wmi->parent_dev);
1224 
1225 	return 0;
1226 }
1227 
1228 static int ath6kl_wmi_test_rx(struct wmi *wmi, u8 *datap, int len)
1229 {
1230 	ath6kl_tm_rx_event(wmi->parent_dev, datap, len);
1231 
1232 	return 0;
1233 }
1234 
1235 static int ath6kl_wmi_ratemask_reply_rx(struct wmi *wmi, u8 *datap, int len)
1236 {
1237 	if (len < sizeof(struct wmi_fix_rates_reply))
1238 		return -EINVAL;
1239 
1240 	ath6kl_wakeup_event(wmi->parent_dev);
1241 
1242 	return 0;
1243 }
1244 
1245 static int ath6kl_wmi_ch_list_reply_rx(struct wmi *wmi, u8 *datap, int len)
1246 {
1247 	if (len < sizeof(struct wmi_channel_list_reply))
1248 		return -EINVAL;
1249 
1250 	ath6kl_wakeup_event(wmi->parent_dev);
1251 
1252 	return 0;
1253 }
1254 
1255 static int ath6kl_wmi_tx_pwr_reply_rx(struct wmi *wmi, u8 *datap, int len)
1256 {
1257 	struct wmi_tx_pwr_reply *reply;
1258 
1259 	if (len < sizeof(struct wmi_tx_pwr_reply))
1260 		return -EINVAL;
1261 
1262 	reply = (struct wmi_tx_pwr_reply *) datap;
1263 	ath6kl_txpwr_rx_evt(wmi->parent_dev, reply->dbM);
1264 
1265 	return 0;
1266 }
1267 
1268 static int ath6kl_wmi_keepalive_reply_rx(struct wmi *wmi, u8 *datap, int len)
1269 {
1270 	if (len < sizeof(struct wmi_get_keepalive_cmd))
1271 		return -EINVAL;
1272 
1273 	ath6kl_wakeup_event(wmi->parent_dev);
1274 
1275 	return 0;
1276 }
1277 
1278 static int ath6kl_wmi_scan_complete_rx(struct wmi *wmi, u8 *datap, int len,
1279 				       struct ath6kl_vif *vif)
1280 {
1281 	struct wmi_scan_complete_event *ev;
1282 
1283 	ev = (struct wmi_scan_complete_event *) datap;
1284 
1285 	ath6kl_scan_complete_evt(vif, a_sle32_to_cpu(ev->status));
1286 	wmi->is_probe_ssid = false;
1287 
1288 	return 0;
1289 }
1290 
1291 static int ath6kl_wmi_neighbor_report_event_rx(struct wmi *wmi, u8 *datap,
1292 					       int len, struct ath6kl_vif *vif)
1293 {
1294 	struct wmi_neighbor_report_event *ev;
1295 	u8 i;
1296 
1297 	if (len < sizeof(*ev))
1298 		return -EINVAL;
1299 	ev = (struct wmi_neighbor_report_event *) datap;
1300 	if (sizeof(*ev) + ev->num_neighbors * sizeof(struct wmi_neighbor_info)
1301 	    > len) {
1302 		ath6kl_dbg(ATH6KL_DBG_WMI,
1303 			   "truncated neighbor event (num=%d len=%d)\n",
1304 			   ev->num_neighbors, len);
1305 		return -EINVAL;
1306 	}
1307 	for (i = 0; i < ev->num_neighbors; i++) {
1308 		ath6kl_dbg(ATH6KL_DBG_WMI, "neighbor %d/%d - %pM 0x%x\n",
1309 			   i + 1, ev->num_neighbors, ev->neighbor[i].bssid,
1310 			   ev->neighbor[i].bss_flags);
1311 		cfg80211_pmksa_candidate_notify(vif->ndev, i,
1312 						ev->neighbor[i].bssid,
1313 						!!(ev->neighbor[i].bss_flags &
1314 						   WMI_PREAUTH_CAPABLE_BSS),
1315 						GFP_ATOMIC);
1316 	}
1317 
1318 	return 0;
1319 }
1320 
1321 /*
1322  * Target is reporting a programming error.  This is for
1323  * developer aid only.  Target only checks a few common violations
1324  * and it is responsibility of host to do all error checking.
1325  * Behavior of target after wmi error event is undefined.
1326  * A reset is recommended.
1327  */
1328 static int ath6kl_wmi_error_event_rx(struct wmi *wmi, u8 *datap, int len)
1329 {
1330 	const char *type = "unknown error";
1331 	struct wmi_cmd_error_event *ev;
1332 	ev = (struct wmi_cmd_error_event *) datap;
1333 
1334 	switch (ev->err_code) {
1335 	case INVALID_PARAM:
1336 		type = "invalid parameter";
1337 		break;
1338 	case ILLEGAL_STATE:
1339 		type = "invalid state";
1340 		break;
1341 	case INTERNAL_ERROR:
1342 		type = "internal error";
1343 		break;
1344 	}
1345 
1346 	ath6kl_dbg(ATH6KL_DBG_WMI, "programming error, cmd=%d %s\n",
1347 		   ev->cmd_id, type);
1348 
1349 	return 0;
1350 }
1351 
1352 static int ath6kl_wmi_stats_event_rx(struct wmi *wmi, u8 *datap, int len,
1353 				     struct ath6kl_vif *vif)
1354 {
1355 	ath6kl_tgt_stats_event(vif, datap, len);
1356 
1357 	return 0;
1358 }
1359 
1360 static u8 ath6kl_wmi_get_upper_threshold(s16 rssi,
1361 					 struct sq_threshold_params *sq_thresh,
1362 					 u32 size)
1363 {
1364 	u32 index;
1365 	u8 threshold = (u8) sq_thresh->upper_threshold[size - 1];
1366 
1367 	/* The list is already in sorted order. Get the next lower value */
1368 	for (index = 0; index < size; index++) {
1369 		if (rssi < sq_thresh->upper_threshold[index]) {
1370 			threshold = (u8) sq_thresh->upper_threshold[index];
1371 			break;
1372 		}
1373 	}
1374 
1375 	return threshold;
1376 }
1377 
1378 static u8 ath6kl_wmi_get_lower_threshold(s16 rssi,
1379 					 struct sq_threshold_params *sq_thresh,
1380 					 u32 size)
1381 {
1382 	u32 index;
1383 	u8 threshold = (u8) sq_thresh->lower_threshold[size - 1];
1384 
1385 	/* The list is already in sorted order. Get the next lower value */
1386 	for (index = 0; index < size; index++) {
1387 		if (rssi > sq_thresh->lower_threshold[index]) {
1388 			threshold = (u8) sq_thresh->lower_threshold[index];
1389 			break;
1390 		}
1391 	}
1392 
1393 	return threshold;
1394 }
1395 
1396 static int ath6kl_wmi_send_rssi_threshold_params(struct wmi *wmi,
1397 			struct wmi_rssi_threshold_params_cmd *rssi_cmd)
1398 {
1399 	struct sk_buff *skb;
1400 	struct wmi_rssi_threshold_params_cmd *cmd;
1401 
1402 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1403 	if (!skb)
1404 		return -ENOMEM;
1405 
1406 	cmd = (struct wmi_rssi_threshold_params_cmd *) skb->data;
1407 	memcpy(cmd, rssi_cmd, sizeof(struct wmi_rssi_threshold_params_cmd));
1408 
1409 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_RSSI_THRESHOLD_PARAMS_CMDID,
1410 				   NO_SYNC_WMIFLAG);
1411 }
1412 
1413 static int ath6kl_wmi_rssi_threshold_event_rx(struct wmi *wmi, u8 *datap,
1414 					      int len)
1415 {
1416 	struct wmi_rssi_threshold_event *reply;
1417 	struct wmi_rssi_threshold_params_cmd cmd;
1418 	struct sq_threshold_params *sq_thresh;
1419 	enum wmi_rssi_threshold_val new_threshold;
1420 	u8 upper_rssi_threshold, lower_rssi_threshold;
1421 	s16 rssi;
1422 	int ret;
1423 
1424 	if (len < sizeof(struct wmi_rssi_threshold_event))
1425 		return -EINVAL;
1426 
1427 	reply = (struct wmi_rssi_threshold_event *) datap;
1428 	new_threshold = (enum wmi_rssi_threshold_val) reply->range;
1429 	rssi = a_sle16_to_cpu(reply->rssi);
1430 
1431 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_RSSI];
1432 
1433 	/*
1434 	 * Identify the threshold breached and communicate that to the app.
1435 	 * After that install a new set of thresholds based on the signal
1436 	 * quality reported by the target
1437 	 */
1438 	if (new_threshold) {
1439 		/* Upper threshold breached */
1440 		if (rssi < sq_thresh->upper_threshold[0]) {
1441 			ath6kl_dbg(ATH6KL_DBG_WMI,
1442 				   "spurious upper rssi threshold event: %d\n",
1443 				   rssi);
1444 		} else if ((rssi < sq_thresh->upper_threshold[1]) &&
1445 			   (rssi >= sq_thresh->upper_threshold[0])) {
1446 			new_threshold = WMI_RSSI_THRESHOLD1_ABOVE;
1447 		} else if ((rssi < sq_thresh->upper_threshold[2]) &&
1448 			   (rssi >= sq_thresh->upper_threshold[1])) {
1449 			new_threshold = WMI_RSSI_THRESHOLD2_ABOVE;
1450 		} else if ((rssi < sq_thresh->upper_threshold[3]) &&
1451 			   (rssi >= sq_thresh->upper_threshold[2])) {
1452 			new_threshold = WMI_RSSI_THRESHOLD3_ABOVE;
1453 		} else if ((rssi < sq_thresh->upper_threshold[4]) &&
1454 			   (rssi >= sq_thresh->upper_threshold[3])) {
1455 			new_threshold = WMI_RSSI_THRESHOLD4_ABOVE;
1456 		} else if ((rssi < sq_thresh->upper_threshold[5]) &&
1457 			   (rssi >= sq_thresh->upper_threshold[4])) {
1458 			new_threshold = WMI_RSSI_THRESHOLD5_ABOVE;
1459 		} else if (rssi >= sq_thresh->upper_threshold[5]) {
1460 			new_threshold = WMI_RSSI_THRESHOLD6_ABOVE;
1461 		}
1462 	} else {
1463 		/* Lower threshold breached */
1464 		if (rssi > sq_thresh->lower_threshold[0]) {
1465 			ath6kl_dbg(ATH6KL_DBG_WMI,
1466 				   "spurious lower rssi threshold event: %d %d\n",
1467 				rssi, sq_thresh->lower_threshold[0]);
1468 		} else if ((rssi > sq_thresh->lower_threshold[1]) &&
1469 			   (rssi <= sq_thresh->lower_threshold[0])) {
1470 			new_threshold = WMI_RSSI_THRESHOLD6_BELOW;
1471 		} else if ((rssi > sq_thresh->lower_threshold[2]) &&
1472 			   (rssi <= sq_thresh->lower_threshold[1])) {
1473 			new_threshold = WMI_RSSI_THRESHOLD5_BELOW;
1474 		} else if ((rssi > sq_thresh->lower_threshold[3]) &&
1475 			   (rssi <= sq_thresh->lower_threshold[2])) {
1476 			new_threshold = WMI_RSSI_THRESHOLD4_BELOW;
1477 		} else if ((rssi > sq_thresh->lower_threshold[4]) &&
1478 			   (rssi <= sq_thresh->lower_threshold[3])) {
1479 			new_threshold = WMI_RSSI_THRESHOLD3_BELOW;
1480 		} else if ((rssi > sq_thresh->lower_threshold[5]) &&
1481 			   (rssi <= sq_thresh->lower_threshold[4])) {
1482 			new_threshold = WMI_RSSI_THRESHOLD2_BELOW;
1483 		} else if (rssi <= sq_thresh->lower_threshold[5]) {
1484 			new_threshold = WMI_RSSI_THRESHOLD1_BELOW;
1485 		}
1486 	}
1487 
1488 	/* Calculate and install the next set of thresholds */
1489 	lower_rssi_threshold = ath6kl_wmi_get_lower_threshold(rssi, sq_thresh,
1490 				       sq_thresh->lower_threshold_valid_count);
1491 	upper_rssi_threshold = ath6kl_wmi_get_upper_threshold(rssi, sq_thresh,
1492 				       sq_thresh->upper_threshold_valid_count);
1493 
1494 	/* Issue a wmi command to install the thresholds */
1495 	cmd.thresh_above1_val = a_cpu_to_sle16(upper_rssi_threshold);
1496 	cmd.thresh_below1_val = a_cpu_to_sle16(lower_rssi_threshold);
1497 	cmd.weight = sq_thresh->weight;
1498 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1499 
1500 	ret = ath6kl_wmi_send_rssi_threshold_params(wmi, &cmd);
1501 	if (ret) {
1502 		ath6kl_err("unable to configure rssi thresholds\n");
1503 		return -EIO;
1504 	}
1505 
1506 	return 0;
1507 }
1508 
1509 static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len,
1510 				   struct ath6kl_vif *vif)
1511 {
1512 	struct wmi_cac_event *reply;
1513 	struct ieee80211_tspec_ie *ts;
1514 	u16 active_tsids, tsinfo;
1515 	u8 tsid, index;
1516 	u8 ts_id;
1517 
1518 	if (len < sizeof(struct wmi_cac_event))
1519 		return -EINVAL;
1520 
1521 	reply = (struct wmi_cac_event *) datap;
1522 
1523 	if ((reply->cac_indication == CAC_INDICATION_ADMISSION_RESP) &&
1524 	    (reply->status_code != IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED)) {
1525 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1526 		tsinfo = le16_to_cpu(ts->tsinfo);
1527 		tsid = (tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1528 			IEEE80211_WMM_IE_TSPEC_TID_MASK;
1529 
1530 		ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1531 					      reply->ac, tsid);
1532 	} else if (reply->cac_indication == CAC_INDICATION_NO_RESP) {
1533 		/*
1534 		 * Following assumes that there is only one outstanding
1535 		 * ADDTS request when this event is received
1536 		 */
1537 		spin_lock_bh(&wmi->lock);
1538 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1539 		spin_unlock_bh(&wmi->lock);
1540 
1541 		for (index = 0; index < sizeof(active_tsids) * 8; index++) {
1542 			if ((active_tsids >> index) & 1)
1543 				break;
1544 		}
1545 		if (index < (sizeof(active_tsids) * 8))
1546 			ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1547 						      reply->ac, index);
1548 	}
1549 
1550 	/*
1551 	 * Clear active tsids and Add missing handling
1552 	 * for delete qos stream from AP
1553 	 */
1554 	else if (reply->cac_indication == CAC_INDICATION_DELETE) {
1555 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1556 		tsinfo = le16_to_cpu(ts->tsinfo);
1557 		ts_id = ((tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1558 			 IEEE80211_WMM_IE_TSPEC_TID_MASK);
1559 
1560 		spin_lock_bh(&wmi->lock);
1561 		wmi->stream_exist_for_ac[reply->ac] &= ~(1 << ts_id);
1562 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1563 		spin_unlock_bh(&wmi->lock);
1564 
1565 		/* Indicate stream inactivity to driver layer only if all tsids
1566 		 * within this AC are deleted.
1567 		 */
1568 		if (!active_tsids) {
1569 			ath6kl_indicate_tx_activity(wmi->parent_dev, reply->ac,
1570 						    false);
1571 			wmi->fat_pipe_exist &= ~(1 << reply->ac);
1572 		}
1573 	}
1574 
1575 	return 0;
1576 }
1577 
1578 static int ath6kl_wmi_txe_notify_event_rx(struct wmi *wmi, u8 *datap, int len,
1579 					  struct ath6kl_vif *vif)
1580 {
1581 	struct wmi_txe_notify_event *ev;
1582 	u32 rate, pkts;
1583 
1584 	if (len < sizeof(*ev))
1585 		return -EINVAL;
1586 
1587 	if (vif->nw_type != INFRA_NETWORK ||
1588 	    !test_bit(ATH6KL_FW_CAPABILITY_TX_ERR_NOTIFY,
1589 		      vif->ar->fw_capabilities))
1590 		return -EOPNOTSUPP;
1591 
1592 	if (vif->sme_state != SME_CONNECTED)
1593 		return -ENOTCONN;
1594 
1595 	ev = (struct wmi_txe_notify_event *) datap;
1596 	rate = le32_to_cpu(ev->rate);
1597 	pkts = le32_to_cpu(ev->pkts);
1598 
1599 	ath6kl_dbg(ATH6KL_DBG_WMI, "TXE notify event: peer %pM rate %d%% pkts %d intvl %ds\n",
1600 		   vif->bssid, rate, pkts, vif->txe_intvl);
1601 
1602 	cfg80211_cqm_txe_notify(vif->ndev, vif->bssid, pkts,
1603 				rate, vif->txe_intvl, GFP_KERNEL);
1604 
1605 	return 0;
1606 }
1607 
1608 int ath6kl_wmi_set_txe_notify(struct wmi *wmi, u8 idx,
1609 			      u32 rate, u32 pkts, u32 intvl)
1610 {
1611 	struct sk_buff *skb;
1612 	struct wmi_txe_notify_cmd *cmd;
1613 
1614 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1615 	if (!skb)
1616 		return -ENOMEM;
1617 
1618 	cmd = (struct wmi_txe_notify_cmd *) skb->data;
1619 	cmd->rate = cpu_to_le32(rate);
1620 	cmd->pkts = cpu_to_le32(pkts);
1621 	cmd->intvl = cpu_to_le32(intvl);
1622 
1623 	return ath6kl_wmi_cmd_send(wmi, idx, skb, WMI_SET_TXE_NOTIFY_CMDID,
1624 				   NO_SYNC_WMIFLAG);
1625 }
1626 
1627 int ath6kl_wmi_set_rssi_filter_cmd(struct wmi *wmi, u8 if_idx, s8 rssi)
1628 {
1629 	struct sk_buff *skb;
1630 	struct wmi_set_rssi_filter_cmd *cmd;
1631 	int ret;
1632 
1633 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1634 	if (!skb)
1635 		return -ENOMEM;
1636 
1637 	cmd = (struct wmi_set_rssi_filter_cmd *) skb->data;
1638 	cmd->rssi = rssi;
1639 
1640 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_RSSI_FILTER_CMDID,
1641 				  NO_SYNC_WMIFLAG);
1642 	return ret;
1643 }
1644 
1645 static int ath6kl_wmi_send_snr_threshold_params(struct wmi *wmi,
1646 			struct wmi_snr_threshold_params_cmd *snr_cmd)
1647 {
1648 	struct sk_buff *skb;
1649 	struct wmi_snr_threshold_params_cmd *cmd;
1650 
1651 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1652 	if (!skb)
1653 		return -ENOMEM;
1654 
1655 	cmd = (struct wmi_snr_threshold_params_cmd *) skb->data;
1656 	memcpy(cmd, snr_cmd, sizeof(struct wmi_snr_threshold_params_cmd));
1657 
1658 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SNR_THRESHOLD_PARAMS_CMDID,
1659 				   NO_SYNC_WMIFLAG);
1660 }
1661 
1662 static int ath6kl_wmi_snr_threshold_event_rx(struct wmi *wmi, u8 *datap,
1663 					     int len)
1664 {
1665 	struct wmi_snr_threshold_event *reply;
1666 	struct sq_threshold_params *sq_thresh;
1667 	struct wmi_snr_threshold_params_cmd cmd;
1668 	enum wmi_snr_threshold_val new_threshold;
1669 	u8 upper_snr_threshold, lower_snr_threshold;
1670 	s16 snr;
1671 	int ret;
1672 
1673 	if (len < sizeof(struct wmi_snr_threshold_event))
1674 		return -EINVAL;
1675 
1676 	reply = (struct wmi_snr_threshold_event *) datap;
1677 
1678 	new_threshold = (enum wmi_snr_threshold_val) reply->range;
1679 	snr = reply->snr;
1680 
1681 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_SNR];
1682 
1683 	/*
1684 	 * Identify the threshold breached and communicate that to the app.
1685 	 * After that install a new set of thresholds based on the signal
1686 	 * quality reported by the target.
1687 	 */
1688 	if (new_threshold) {
1689 		/* Upper threshold breached */
1690 		if (snr < sq_thresh->upper_threshold[0]) {
1691 			ath6kl_dbg(ATH6KL_DBG_WMI,
1692 				   "spurious upper snr threshold event: %d\n",
1693 				   snr);
1694 		} else if ((snr < sq_thresh->upper_threshold[1]) &&
1695 			   (snr >= sq_thresh->upper_threshold[0])) {
1696 			new_threshold = WMI_SNR_THRESHOLD1_ABOVE;
1697 		} else if ((snr < sq_thresh->upper_threshold[2]) &&
1698 			   (snr >= sq_thresh->upper_threshold[1])) {
1699 			new_threshold = WMI_SNR_THRESHOLD2_ABOVE;
1700 		} else if ((snr < sq_thresh->upper_threshold[3]) &&
1701 			   (snr >= sq_thresh->upper_threshold[2])) {
1702 			new_threshold = WMI_SNR_THRESHOLD3_ABOVE;
1703 		} else if (snr >= sq_thresh->upper_threshold[3]) {
1704 			new_threshold = WMI_SNR_THRESHOLD4_ABOVE;
1705 		}
1706 	} else {
1707 		/* Lower threshold breached */
1708 		if (snr > sq_thresh->lower_threshold[0]) {
1709 			ath6kl_dbg(ATH6KL_DBG_WMI,
1710 				   "spurious lower snr threshold event: %d\n",
1711 				   sq_thresh->lower_threshold[0]);
1712 		} else if ((snr > sq_thresh->lower_threshold[1]) &&
1713 			   (snr <= sq_thresh->lower_threshold[0])) {
1714 			new_threshold = WMI_SNR_THRESHOLD4_BELOW;
1715 		} else if ((snr > sq_thresh->lower_threshold[2]) &&
1716 			   (snr <= sq_thresh->lower_threshold[1])) {
1717 			new_threshold = WMI_SNR_THRESHOLD3_BELOW;
1718 		} else if ((snr > sq_thresh->lower_threshold[3]) &&
1719 			   (snr <= sq_thresh->lower_threshold[2])) {
1720 			new_threshold = WMI_SNR_THRESHOLD2_BELOW;
1721 		} else if (snr <= sq_thresh->lower_threshold[3]) {
1722 			new_threshold = WMI_SNR_THRESHOLD1_BELOW;
1723 		}
1724 	}
1725 
1726 	/* Calculate and install the next set of thresholds */
1727 	lower_snr_threshold = ath6kl_wmi_get_lower_threshold(snr, sq_thresh,
1728 				       sq_thresh->lower_threshold_valid_count);
1729 	upper_snr_threshold = ath6kl_wmi_get_upper_threshold(snr, sq_thresh,
1730 				       sq_thresh->upper_threshold_valid_count);
1731 
1732 	/* Issue a wmi command to install the thresholds */
1733 	cmd.thresh_above1_val = upper_snr_threshold;
1734 	cmd.thresh_below1_val = lower_snr_threshold;
1735 	cmd.weight = sq_thresh->weight;
1736 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1737 
1738 	ath6kl_dbg(ATH6KL_DBG_WMI,
1739 		   "snr: %d, threshold: %d, lower: %d, upper: %d\n",
1740 		   snr, new_threshold,
1741 		   lower_snr_threshold, upper_snr_threshold);
1742 
1743 	ret = ath6kl_wmi_send_snr_threshold_params(wmi, &cmd);
1744 	if (ret) {
1745 		ath6kl_err("unable to configure snr threshold\n");
1746 		return -EIO;
1747 	}
1748 
1749 	return 0;
1750 }
1751 
1752 static int ath6kl_wmi_aplist_event_rx(struct wmi *wmi, u8 *datap, int len)
1753 {
1754 	u16 ap_info_entry_size;
1755 	struct wmi_aplist_event *ev = (struct wmi_aplist_event *) datap;
1756 	struct wmi_ap_info_v1 *ap_info_v1;
1757 	u8 index;
1758 
1759 	if (len < sizeof(struct wmi_aplist_event) ||
1760 	    ev->ap_list_ver != APLIST_VER1)
1761 		return -EINVAL;
1762 
1763 	ap_info_entry_size = sizeof(struct wmi_ap_info_v1);
1764 	ap_info_v1 = (struct wmi_ap_info_v1 *) ev->ap_list;
1765 
1766 	ath6kl_dbg(ATH6KL_DBG_WMI,
1767 		   "number of APs in aplist event: %d\n", ev->num_ap);
1768 
1769 	if (len < (int) (sizeof(struct wmi_aplist_event) +
1770 			 (ev->num_ap - 1) * ap_info_entry_size))
1771 		return -EINVAL;
1772 
1773 	/* AP list version 1 contents */
1774 	for (index = 0; index < ev->num_ap; index++) {
1775 		ath6kl_dbg(ATH6KL_DBG_WMI, "AP#%d BSSID %pM Channel %d\n",
1776 			   index, ap_info_v1->bssid, ap_info_v1->channel);
1777 		ap_info_v1++;
1778 	}
1779 
1780 	return 0;
1781 }
1782 
1783 int ath6kl_wmi_cmd_send(struct wmi *wmi, u8 if_idx, struct sk_buff *skb,
1784 			enum wmi_cmd_id cmd_id, enum wmi_sync_flag sync_flag)
1785 {
1786 	struct wmi_cmd_hdr *cmd_hdr;
1787 	enum htc_endpoint_id ep_id = wmi->ep_id;
1788 	int ret;
1789 	u16 info1;
1790 
1791 	if (WARN_ON(skb == NULL ||
1792 		    (if_idx > (wmi->parent_dev->vif_max - 1)))) {
1793 		dev_kfree_skb(skb);
1794 		return -EINVAL;
1795 	}
1796 
1797 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi tx id %d len %d flag %d\n",
1798 		   cmd_id, skb->len, sync_flag);
1799 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi tx ",
1800 			skb->data, skb->len);
1801 
1802 	if (sync_flag >= END_WMIFLAG) {
1803 		dev_kfree_skb(skb);
1804 		return -EINVAL;
1805 	}
1806 
1807 	if ((sync_flag == SYNC_BEFORE_WMIFLAG) ||
1808 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1809 		/*
1810 		 * Make sure all data currently queued is transmitted before
1811 		 * the cmd execution.  Establish a new sync point.
1812 		 */
1813 		ath6kl_wmi_sync_point(wmi, if_idx);
1814 	}
1815 
1816 	skb_push(skb, sizeof(struct wmi_cmd_hdr));
1817 
1818 	cmd_hdr = (struct wmi_cmd_hdr *) skb->data;
1819 	cmd_hdr->cmd_id = cpu_to_le16(cmd_id);
1820 	info1 = if_idx & WMI_CMD_HDR_IF_ID_MASK;
1821 	cmd_hdr->info1 = cpu_to_le16(info1);
1822 
1823 	/* Only for OPT_TX_CMD, use BE endpoint. */
1824 	if (cmd_id == WMI_OPT_TX_FRAME_CMDID) {
1825 		ret = ath6kl_wmi_data_hdr_add(wmi, skb, OPT_MSGTYPE,
1826 					      false, false, 0, NULL, if_idx);
1827 		if (ret) {
1828 			dev_kfree_skb(skb);
1829 			return ret;
1830 		}
1831 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev, WMM_AC_BE);
1832 	}
1833 
1834 	ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
1835 
1836 	if ((sync_flag == SYNC_AFTER_WMIFLAG) ||
1837 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1838 		/*
1839 		 * Make sure all new data queued waits for the command to
1840 		 * execute. Establish a new sync point.
1841 		 */
1842 		ath6kl_wmi_sync_point(wmi, if_idx);
1843 	}
1844 
1845 	return 0;
1846 }
1847 
1848 int ath6kl_wmi_connect_cmd(struct wmi *wmi, u8 if_idx,
1849 			   enum network_type nw_type,
1850 			   enum dot11_auth_mode dot11_auth_mode,
1851 			   enum auth_mode auth_mode,
1852 			   enum crypto_type pairwise_crypto,
1853 			   u8 pairwise_crypto_len,
1854 			   enum crypto_type group_crypto,
1855 			   u8 group_crypto_len, int ssid_len, u8 *ssid,
1856 			   u8 *bssid, u16 channel, u32 ctrl_flags,
1857 			   u8 nw_subtype)
1858 {
1859 	struct sk_buff *skb;
1860 	struct wmi_connect_cmd *cc;
1861 	int ret;
1862 
1863 	ath6kl_dbg(ATH6KL_DBG_WMI,
1864 		   "wmi connect bssid %pM freq %d flags 0x%x ssid_len %d "
1865 		   "type %d dot11_auth %d auth %d pairwise %d group %d\n",
1866 		   bssid, channel, ctrl_flags, ssid_len, nw_type,
1867 		   dot11_auth_mode, auth_mode, pairwise_crypto, group_crypto);
1868 	ath6kl_dbg_dump(ATH6KL_DBG_WMI, NULL, "ssid ", ssid, ssid_len);
1869 
1870 	wmi->traffic_class = 100;
1871 
1872 	if ((pairwise_crypto == NONE_CRYPT) && (group_crypto != NONE_CRYPT))
1873 		return -EINVAL;
1874 
1875 	if ((pairwise_crypto != NONE_CRYPT) && (group_crypto == NONE_CRYPT))
1876 		return -EINVAL;
1877 
1878 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_connect_cmd));
1879 	if (!skb)
1880 		return -ENOMEM;
1881 
1882 	cc = (struct wmi_connect_cmd *) skb->data;
1883 
1884 	if (ssid_len)
1885 		memcpy(cc->ssid, ssid, ssid_len);
1886 
1887 	cc->ssid_len = ssid_len;
1888 	cc->nw_type = nw_type;
1889 	cc->dot11_auth_mode = dot11_auth_mode;
1890 	cc->auth_mode = auth_mode;
1891 	cc->prwise_crypto_type = pairwise_crypto;
1892 	cc->prwise_crypto_len = pairwise_crypto_len;
1893 	cc->grp_crypto_type = group_crypto;
1894 	cc->grp_crypto_len = group_crypto_len;
1895 	cc->ch = cpu_to_le16(channel);
1896 	cc->ctrl_flags = cpu_to_le32(ctrl_flags);
1897 	cc->nw_subtype = nw_subtype;
1898 
1899 	if (bssid != NULL)
1900 		memcpy(cc->bssid, bssid, ETH_ALEN);
1901 
1902 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CONNECT_CMDID,
1903 				  NO_SYNC_WMIFLAG);
1904 
1905 	return ret;
1906 }
1907 
1908 int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 if_idx, u8 *bssid,
1909 			     u16 channel)
1910 {
1911 	struct sk_buff *skb;
1912 	struct wmi_reconnect_cmd *cc;
1913 	int ret;
1914 
1915 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi reconnect bssid %pM freq %d\n",
1916 		   bssid, channel);
1917 
1918 	wmi->traffic_class = 100;
1919 
1920 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_reconnect_cmd));
1921 	if (!skb)
1922 		return -ENOMEM;
1923 
1924 	cc = (struct wmi_reconnect_cmd *) skb->data;
1925 	cc->channel = cpu_to_le16(channel);
1926 
1927 	if (bssid != NULL)
1928 		memcpy(cc->bssid, bssid, ETH_ALEN);
1929 
1930 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RECONNECT_CMDID,
1931 				  NO_SYNC_WMIFLAG);
1932 
1933 	return ret;
1934 }
1935 
1936 int ath6kl_wmi_disconnect_cmd(struct wmi *wmi, u8 if_idx)
1937 {
1938 	int ret;
1939 
1940 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi disconnect\n");
1941 
1942 	wmi->traffic_class = 100;
1943 
1944 	/* Disconnect command does not need to do a SYNC before. */
1945 	ret = ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_DISCONNECT_CMDID);
1946 
1947 	return ret;
1948 }
1949 
1950 /* ath6kl_wmi_start_scan_cmd is to be deprecated. Use
1951  * ath6kl_wmi_begin_scan_cmd instead. The new function supports P2P
1952  * mgmt operations using station interface.
1953  */
1954 static int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx,
1955 				    enum wmi_scan_type scan_type,
1956 				    u32 force_fgscan, u32 is_legacy,
1957 				    u32 home_dwell_time,
1958 				    u32 force_scan_interval,
1959 				    s8 num_chan, u16 *ch_list)
1960 {
1961 	struct sk_buff *skb;
1962 	struct wmi_start_scan_cmd *sc;
1963 	s8 size;
1964 	int i, ret;
1965 
1966 	size = sizeof(struct wmi_start_scan_cmd);
1967 
1968 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
1969 		return -EINVAL;
1970 
1971 	if (num_chan > WMI_MAX_CHANNELS)
1972 		return -EINVAL;
1973 
1974 	if (num_chan)
1975 		size += sizeof(u16) * (num_chan - 1);
1976 
1977 	skb = ath6kl_wmi_get_new_buf(size);
1978 	if (!skb)
1979 		return -ENOMEM;
1980 
1981 	sc = (struct wmi_start_scan_cmd *) skb->data;
1982 	sc->scan_type = scan_type;
1983 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
1984 	sc->is_legacy = cpu_to_le32(is_legacy);
1985 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
1986 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
1987 	sc->num_ch = num_chan;
1988 
1989 	for (i = 0; i < num_chan; i++)
1990 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
1991 
1992 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_START_SCAN_CMDID,
1993 				  NO_SYNC_WMIFLAG);
1994 
1995 	return ret;
1996 }
1997 
1998 /*
1999  * beginscan supports (compared to old startscan) P2P mgmt operations using
2000  * station interface, send additional information like supported rates to
2001  * advertise and xmit rates for probe requests
2002  */
2003 int ath6kl_wmi_beginscan_cmd(struct wmi *wmi, u8 if_idx,
2004 			     enum wmi_scan_type scan_type,
2005 			     u32 force_fgscan, u32 is_legacy,
2006 			     u32 home_dwell_time, u32 force_scan_interval,
2007 			     s8 num_chan, u16 *ch_list, u32 no_cck, u32 *rates)
2008 {
2009 	struct ieee80211_supported_band *sband;
2010 	struct sk_buff *skb;
2011 	struct wmi_begin_scan_cmd *sc;
2012 	s8 size, *supp_rates;
2013 	int i, band, ret;
2014 	struct ath6kl *ar = wmi->parent_dev;
2015 	int num_rates;
2016 	u32 ratemask;
2017 
2018 	if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
2019 		      ar->fw_capabilities)) {
2020 		return ath6kl_wmi_startscan_cmd(wmi, if_idx,
2021 						scan_type, force_fgscan,
2022 						is_legacy, home_dwell_time,
2023 						force_scan_interval,
2024 						num_chan, ch_list);
2025 	}
2026 
2027 	size = sizeof(struct wmi_begin_scan_cmd);
2028 
2029 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
2030 		return -EINVAL;
2031 
2032 	if (num_chan > WMI_MAX_CHANNELS)
2033 		return -EINVAL;
2034 
2035 	if (num_chan)
2036 		size += sizeof(u16) * (num_chan - 1);
2037 
2038 	skb = ath6kl_wmi_get_new_buf(size);
2039 	if (!skb)
2040 		return -ENOMEM;
2041 
2042 	sc = (struct wmi_begin_scan_cmd *) skb->data;
2043 	sc->scan_type = scan_type;
2044 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
2045 	sc->is_legacy = cpu_to_le32(is_legacy);
2046 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
2047 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
2048 	sc->no_cck = cpu_to_le32(no_cck);
2049 	sc->num_ch = num_chan;
2050 
2051 	for (band = 0; band < NUM_NL80211_BANDS; band++) {
2052 		sband = ar->wiphy->bands[band];
2053 
2054 		if (!sband)
2055 			continue;
2056 
2057 		if (WARN_ON(band >= ATH6KL_NUM_BANDS))
2058 			break;
2059 
2060 		ratemask = rates[band];
2061 		supp_rates = sc->supp_rates[band].rates;
2062 		num_rates = 0;
2063 
2064 		for (i = 0; i < sband->n_bitrates; i++) {
2065 			if ((BIT(i) & ratemask) == 0)
2066 				continue; /* skip rate */
2067 			supp_rates[num_rates++] =
2068 			    (u8) (sband->bitrates[i].bitrate / 5);
2069 		}
2070 		sc->supp_rates[band].nrates = num_rates;
2071 	}
2072 
2073 	for (i = 0; i < num_chan; i++)
2074 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
2075 
2076 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_BEGIN_SCAN_CMDID,
2077 				  NO_SYNC_WMIFLAG);
2078 
2079 	return ret;
2080 }
2081 
2082 int ath6kl_wmi_enable_sched_scan_cmd(struct wmi *wmi, u8 if_idx, bool enable)
2083 {
2084 	struct sk_buff *skb;
2085 	struct wmi_enable_sched_scan_cmd *sc;
2086 	int ret;
2087 
2088 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2089 	if (!skb)
2090 		return -ENOMEM;
2091 
2092 	ath6kl_dbg(ATH6KL_DBG_WMI, "%s scheduled scan on vif %d\n",
2093 		   enable ? "enabling" : "disabling", if_idx);
2094 	sc = (struct wmi_enable_sched_scan_cmd *) skb->data;
2095 	sc->enable = enable ? 1 : 0;
2096 
2097 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2098 				  WMI_ENABLE_SCHED_SCAN_CMDID,
2099 				  NO_SYNC_WMIFLAG);
2100 	return ret;
2101 }
2102 
2103 int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u8 if_idx,
2104 			      u16 fg_start_sec,
2105 			      u16 fg_end_sec, u16 bg_sec,
2106 			      u16 minact_chdw_msec, u16 maxact_chdw_msec,
2107 			      u16 pas_chdw_msec, u8 short_scan_ratio,
2108 			      u8 scan_ctrl_flag, u32 max_dfsch_act_time,
2109 			      u16 maxact_scan_per_ssid)
2110 {
2111 	struct sk_buff *skb;
2112 	struct wmi_scan_params_cmd *sc;
2113 	int ret;
2114 
2115 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2116 	if (!skb)
2117 		return -ENOMEM;
2118 
2119 	sc = (struct wmi_scan_params_cmd *) skb->data;
2120 	sc->fg_start_period = cpu_to_le16(fg_start_sec);
2121 	sc->fg_end_period = cpu_to_le16(fg_end_sec);
2122 	sc->bg_period = cpu_to_le16(bg_sec);
2123 	sc->minact_chdwell_time = cpu_to_le16(minact_chdw_msec);
2124 	sc->maxact_chdwell_time = cpu_to_le16(maxact_chdw_msec);
2125 	sc->pas_chdwell_time = cpu_to_le16(pas_chdw_msec);
2126 	sc->short_scan_ratio = short_scan_ratio;
2127 	sc->scan_ctrl_flags = scan_ctrl_flag;
2128 	sc->max_dfsch_act_time = cpu_to_le32(max_dfsch_act_time);
2129 	sc->maxact_scan_per_ssid = cpu_to_le16(maxact_scan_per_ssid);
2130 
2131 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_SCAN_PARAMS_CMDID,
2132 				  NO_SYNC_WMIFLAG);
2133 	return ret;
2134 }
2135 
2136 int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 if_idx, u8 filter, u32 ie_mask)
2137 {
2138 	struct sk_buff *skb;
2139 	struct wmi_bss_filter_cmd *cmd;
2140 	int ret;
2141 
2142 	if (filter >= LAST_BSS_FILTER)
2143 		return -EINVAL;
2144 
2145 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2146 	if (!skb)
2147 		return -ENOMEM;
2148 
2149 	cmd = (struct wmi_bss_filter_cmd *) skb->data;
2150 	cmd->bss_filter = filter;
2151 	cmd->ie_mask = cpu_to_le32(ie_mask);
2152 
2153 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BSS_FILTER_CMDID,
2154 				  NO_SYNC_WMIFLAG);
2155 	return ret;
2156 }
2157 
2158 int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 if_idx, u8 index, u8 flag,
2159 			      u8 ssid_len, u8 *ssid)
2160 {
2161 	struct sk_buff *skb;
2162 	struct wmi_probed_ssid_cmd *cmd;
2163 	int ret;
2164 
2165 	if (index >= MAX_PROBED_SSIDS)
2166 		return -EINVAL;
2167 
2168 	if (ssid_len > sizeof(cmd->ssid))
2169 		return -EINVAL;
2170 
2171 	if ((flag & (DISABLE_SSID_FLAG | ANY_SSID_FLAG)) && (ssid_len > 0))
2172 		return -EINVAL;
2173 
2174 	if ((flag & SPECIFIC_SSID_FLAG) && !ssid_len)
2175 		return -EINVAL;
2176 
2177 	if (flag & SPECIFIC_SSID_FLAG)
2178 		wmi->is_probe_ssid = true;
2179 
2180 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2181 	if (!skb)
2182 		return -ENOMEM;
2183 
2184 	cmd = (struct wmi_probed_ssid_cmd *) skb->data;
2185 	cmd->entry_index = index;
2186 	cmd->flag = flag;
2187 	cmd->ssid_len = ssid_len;
2188 	memcpy(cmd->ssid, ssid, ssid_len);
2189 
2190 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PROBED_SSID_CMDID,
2191 				  NO_SYNC_WMIFLAG);
2192 	return ret;
2193 }
2194 
2195 int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u8 if_idx,
2196 				  u16 listen_interval,
2197 				  u16 listen_beacons)
2198 {
2199 	struct sk_buff *skb;
2200 	struct wmi_listen_int_cmd *cmd;
2201 	int ret;
2202 
2203 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2204 	if (!skb)
2205 		return -ENOMEM;
2206 
2207 	cmd = (struct wmi_listen_int_cmd *) skb->data;
2208 	cmd->listen_intvl = cpu_to_le16(listen_interval);
2209 	cmd->num_beacons = cpu_to_le16(listen_beacons);
2210 
2211 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LISTEN_INT_CMDID,
2212 				  NO_SYNC_WMIFLAG);
2213 	return ret;
2214 }
2215 
2216 int ath6kl_wmi_bmisstime_cmd(struct wmi *wmi, u8 if_idx,
2217 			     u16 bmiss_time, u16 num_beacons)
2218 {
2219 	struct sk_buff *skb;
2220 	struct wmi_bmiss_time_cmd *cmd;
2221 	int ret;
2222 
2223 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2224 	if (!skb)
2225 		return -ENOMEM;
2226 
2227 	cmd = (struct wmi_bmiss_time_cmd *) skb->data;
2228 	cmd->bmiss_time = cpu_to_le16(bmiss_time);
2229 	cmd->num_beacons = cpu_to_le16(num_beacons);
2230 
2231 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BMISS_TIME_CMDID,
2232 				  NO_SYNC_WMIFLAG);
2233 	return ret;
2234 }
2235 
2236 int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 if_idx, u8 pwr_mode)
2237 {
2238 	struct sk_buff *skb;
2239 	struct wmi_power_mode_cmd *cmd;
2240 	int ret;
2241 
2242 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2243 	if (!skb)
2244 		return -ENOMEM;
2245 
2246 	cmd = (struct wmi_power_mode_cmd *) skb->data;
2247 	cmd->pwr_mode = pwr_mode;
2248 	wmi->pwr_mode = pwr_mode;
2249 
2250 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_MODE_CMDID,
2251 				  NO_SYNC_WMIFLAG);
2252 	return ret;
2253 }
2254 
2255 int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u8 if_idx, u16 idle_period,
2256 			    u16 ps_poll_num, u16 dtim_policy,
2257 			    u16 tx_wakeup_policy, u16 num_tx_to_wakeup,
2258 			    u16 ps_fail_event_policy)
2259 {
2260 	struct sk_buff *skb;
2261 	struct wmi_power_params_cmd *pm;
2262 	int ret;
2263 
2264 	skb = ath6kl_wmi_get_new_buf(sizeof(*pm));
2265 	if (!skb)
2266 		return -ENOMEM;
2267 
2268 	pm = (struct wmi_power_params_cmd *)skb->data;
2269 	pm->idle_period = cpu_to_le16(idle_period);
2270 	pm->pspoll_number = cpu_to_le16(ps_poll_num);
2271 	pm->dtim_policy = cpu_to_le16(dtim_policy);
2272 	pm->tx_wakeup_policy = cpu_to_le16(tx_wakeup_policy);
2273 	pm->num_tx_to_wakeup = cpu_to_le16(num_tx_to_wakeup);
2274 	pm->ps_fail_event_policy = cpu_to_le16(ps_fail_event_policy);
2275 
2276 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_PARAMS_CMDID,
2277 				  NO_SYNC_WMIFLAG);
2278 	return ret;
2279 }
2280 
2281 int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 if_idx, u8 timeout)
2282 {
2283 	struct sk_buff *skb;
2284 	struct wmi_disc_timeout_cmd *cmd;
2285 	int ret;
2286 
2287 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2288 	if (!skb)
2289 		return -ENOMEM;
2290 
2291 	cmd = (struct wmi_disc_timeout_cmd *) skb->data;
2292 	cmd->discon_timeout = timeout;
2293 
2294 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_DISC_TIMEOUT_CMDID,
2295 				  NO_SYNC_WMIFLAG);
2296 
2297 	if (ret == 0)
2298 		ath6kl_debug_set_disconnect_timeout(wmi->parent_dev, timeout);
2299 
2300 	return ret;
2301 }
2302 
2303 int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index,
2304 			  enum crypto_type key_type,
2305 			  u8 key_usage, u8 key_len,
2306 			  u8 *key_rsc, unsigned int key_rsc_len,
2307 			  u8 *key_material,
2308 			  u8 key_op_ctrl, u8 *mac_addr,
2309 			  enum wmi_sync_flag sync_flag)
2310 {
2311 	struct sk_buff *skb;
2312 	struct wmi_add_cipher_key_cmd *cmd;
2313 	int ret;
2314 
2315 	ath6kl_dbg(ATH6KL_DBG_WMI,
2316 		   "addkey cmd: key_index=%u key_type=%d key_usage=%d key_len=%d key_op_ctrl=%d\n",
2317 		   key_index, key_type, key_usage, key_len, key_op_ctrl);
2318 
2319 	if ((key_index > WMI_MAX_KEY_INDEX) || (key_len > WMI_MAX_KEY_LEN) ||
2320 	    (key_material == NULL) || key_rsc_len > 8)
2321 		return -EINVAL;
2322 
2323 	if ((WEP_CRYPT != key_type) && (NULL == key_rsc))
2324 		return -EINVAL;
2325 
2326 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2327 	if (!skb)
2328 		return -ENOMEM;
2329 
2330 	cmd = (struct wmi_add_cipher_key_cmd *) skb->data;
2331 	cmd->key_index = key_index;
2332 	cmd->key_type = key_type;
2333 	cmd->key_usage = key_usage;
2334 	cmd->key_len = key_len;
2335 	memcpy(cmd->key, key_material, key_len);
2336 
2337 	if (key_rsc != NULL)
2338 		memcpy(cmd->key_rsc, key_rsc, key_rsc_len);
2339 
2340 	cmd->key_op_ctrl = key_op_ctrl;
2341 
2342 	if (mac_addr)
2343 		memcpy(cmd->key_mac_addr, mac_addr, ETH_ALEN);
2344 
2345 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_CIPHER_KEY_CMDID,
2346 				  sync_flag);
2347 
2348 	return ret;
2349 }
2350 
2351 int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 if_idx, const u8 *krk)
2352 {
2353 	struct sk_buff *skb;
2354 	struct wmi_add_krk_cmd *cmd;
2355 	int ret;
2356 
2357 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2358 	if (!skb)
2359 		return -ENOMEM;
2360 
2361 	cmd = (struct wmi_add_krk_cmd *) skb->data;
2362 	memcpy(cmd->krk, krk, WMI_KRK_LEN);
2363 
2364 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_KRK_CMDID,
2365 				  NO_SYNC_WMIFLAG);
2366 
2367 	return ret;
2368 }
2369 
2370 int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index)
2371 {
2372 	struct sk_buff *skb;
2373 	struct wmi_delete_cipher_key_cmd *cmd;
2374 	int ret;
2375 
2376 	if (key_index > WMI_MAX_KEY_INDEX)
2377 		return -EINVAL;
2378 
2379 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2380 	if (!skb)
2381 		return -ENOMEM;
2382 
2383 	cmd = (struct wmi_delete_cipher_key_cmd *) skb->data;
2384 	cmd->key_index = key_index;
2385 
2386 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_CIPHER_KEY_CMDID,
2387 				  NO_SYNC_WMIFLAG);
2388 
2389 	return ret;
2390 }
2391 
2392 int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, u8 if_idx, const u8 *bssid,
2393 			    const u8 *pmkid, bool set)
2394 {
2395 	struct sk_buff *skb;
2396 	struct wmi_setpmkid_cmd *cmd;
2397 	int ret;
2398 
2399 	if (bssid == NULL)
2400 		return -EINVAL;
2401 
2402 	if (set && pmkid == NULL)
2403 		return -EINVAL;
2404 
2405 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2406 	if (!skb)
2407 		return -ENOMEM;
2408 
2409 	cmd = (struct wmi_setpmkid_cmd *) skb->data;
2410 	memcpy(cmd->bssid, bssid, ETH_ALEN);
2411 	if (set) {
2412 		memcpy(cmd->pmkid, pmkid, sizeof(cmd->pmkid));
2413 		cmd->enable = PMKID_ENABLE;
2414 	} else {
2415 		memset(cmd->pmkid, 0, sizeof(cmd->pmkid));
2416 		cmd->enable = PMKID_DISABLE;
2417 	}
2418 
2419 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PMKID_CMDID,
2420 				  NO_SYNC_WMIFLAG);
2421 
2422 	return ret;
2423 }
2424 
2425 static int ath6kl_wmi_data_sync_send(struct wmi *wmi, struct sk_buff *skb,
2426 			      enum htc_endpoint_id ep_id, u8 if_idx)
2427 {
2428 	struct wmi_data_hdr *data_hdr;
2429 	int ret;
2430 
2431 	if (WARN_ON(skb == NULL || ep_id == wmi->ep_id)) {
2432 		dev_kfree_skb(skb);
2433 		return -EINVAL;
2434 	}
2435 
2436 	skb_push(skb, sizeof(struct wmi_data_hdr));
2437 
2438 	data_hdr = (struct wmi_data_hdr *) skb->data;
2439 	data_hdr->info = SYNC_MSGTYPE << WMI_DATA_HDR_MSG_TYPE_SHIFT;
2440 	data_hdr->info3 = cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
2441 
2442 	ret = ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
2443 
2444 	return ret;
2445 }
2446 
2447 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx)
2448 {
2449 	struct sk_buff *skb;
2450 	struct wmi_sync_cmd *cmd;
2451 	struct wmi_data_sync_bufs data_sync_bufs[WMM_NUM_AC];
2452 	enum htc_endpoint_id ep_id;
2453 	u8 index, num_pri_streams = 0;
2454 	int ret = 0;
2455 
2456 	memset(data_sync_bufs, 0, sizeof(data_sync_bufs));
2457 
2458 	spin_lock_bh(&wmi->lock);
2459 
2460 	for (index = 0; index < WMM_NUM_AC; index++) {
2461 		if (wmi->fat_pipe_exist & (1 << index)) {
2462 			num_pri_streams++;
2463 			data_sync_bufs[num_pri_streams - 1].traffic_class =
2464 			    index;
2465 		}
2466 	}
2467 
2468 	spin_unlock_bh(&wmi->lock);
2469 
2470 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2471 	if (!skb)
2472 		return -ENOMEM;
2473 
2474 	cmd = (struct wmi_sync_cmd *) skb->data;
2475 
2476 	/*
2477 	 * In the SYNC cmd sent on the control Ep, send a bitmap
2478 	 * of the data eps on which the Data Sync will be sent
2479 	 */
2480 	cmd->data_sync_map = wmi->fat_pipe_exist;
2481 
2482 	for (index = 0; index < num_pri_streams; index++) {
2483 		data_sync_bufs[index].skb = ath6kl_buf_alloc(0);
2484 		if (data_sync_bufs[index].skb == NULL) {
2485 			ret = -ENOMEM;
2486 			break;
2487 		}
2488 	}
2489 
2490 	/*
2491 	 * If buffer allocation for any of the dataSync fails,
2492 	 * then do not send the Synchronize cmd on the control ep
2493 	 */
2494 	if (ret)
2495 		goto free_cmd_skb;
2496 
2497 	/*
2498 	 * Send sync cmd followed by sync data messages on all
2499 	 * endpoints being used
2500 	 */
2501 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SYNCHRONIZE_CMDID,
2502 				  NO_SYNC_WMIFLAG);
2503 
2504 	if (ret)
2505 		goto free_data_skb;
2506 
2507 	for (index = 0; index < num_pri_streams; index++) {
2508 		if (WARN_ON(!data_sync_bufs[index].skb))
2509 			goto free_data_skb;
2510 
2511 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev,
2512 					       data_sync_bufs[index].
2513 					       traffic_class);
2514 		ret =
2515 		    ath6kl_wmi_data_sync_send(wmi, data_sync_bufs[index].skb,
2516 					      ep_id, if_idx);
2517 
2518 		data_sync_bufs[index].skb = NULL;
2519 
2520 		if (ret)
2521 			goto free_data_skb;
2522 	}
2523 
2524 	return 0;
2525 
2526 free_cmd_skb:
2527 	/* free up any resources left over (possibly due to an error) */
2528 	dev_kfree_skb(skb);
2529 
2530 free_data_skb:
2531 	for (index = 0; index < num_pri_streams; index++)
2532 		dev_kfree_skb((struct sk_buff *)data_sync_bufs[index].skb);
2533 
2534 	return ret;
2535 }
2536 
2537 int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, u8 if_idx,
2538 				  struct wmi_create_pstream_cmd *params)
2539 {
2540 	struct sk_buff *skb;
2541 	struct wmi_create_pstream_cmd *cmd;
2542 	u8 fatpipe_exist_for_ac = 0;
2543 	s32 min_phy = 0;
2544 	s32 nominal_phy = 0;
2545 	int ret;
2546 
2547 	if (!((params->user_pri <= 0x7) &&
2548 	      (up_to_ac[params->user_pri & 0x7] == params->traffic_class) &&
2549 	      (params->traffic_direc == UPLINK_TRAFFIC ||
2550 	       params->traffic_direc == DNLINK_TRAFFIC ||
2551 	       params->traffic_direc == BIDIR_TRAFFIC) &&
2552 	      (params->traffic_type == TRAFFIC_TYPE_APERIODIC ||
2553 	       params->traffic_type == TRAFFIC_TYPE_PERIODIC) &&
2554 	      (params->voice_psc_cap == DISABLE_FOR_THIS_AC ||
2555 	       params->voice_psc_cap == ENABLE_FOR_THIS_AC ||
2556 	       params->voice_psc_cap == ENABLE_FOR_ALL_AC) &&
2557 	      (params->tsid == WMI_IMPLICIT_PSTREAM ||
2558 	       params->tsid <= WMI_MAX_THINSTREAM))) {
2559 		return -EINVAL;
2560 	}
2561 
2562 	/*
2563 	 * Check nominal PHY rate is >= minimalPHY,
2564 	 * so that DUT can allow TSRS IE
2565 	 */
2566 
2567 	/* Get the physical rate (units of bps) */
2568 	min_phy = ((le32_to_cpu(params->min_phy_rate) / 1000) / 1000);
2569 
2570 	/* Check minimal phy < nominal phy rate */
2571 	if (params->nominal_phy >= min_phy) {
2572 		/* unit of 500 kbps */
2573 		nominal_phy = (params->nominal_phy * 1000) / 500;
2574 		ath6kl_dbg(ATH6KL_DBG_WMI,
2575 			   "TSRS IE enabled::MinPhy %x->NominalPhy ===> %x\n",
2576 			   min_phy, nominal_phy);
2577 
2578 		params->nominal_phy = nominal_phy;
2579 	} else {
2580 		params->nominal_phy = 0;
2581 	}
2582 
2583 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2584 	if (!skb)
2585 		return -ENOMEM;
2586 
2587 	ath6kl_dbg(ATH6KL_DBG_WMI,
2588 		   "sending create_pstream_cmd: ac=%d  tsid:%d\n",
2589 		   params->traffic_class, params->tsid);
2590 
2591 	cmd = (struct wmi_create_pstream_cmd *) skb->data;
2592 	memcpy(cmd, params, sizeof(*cmd));
2593 
2594 	/* This is an implicitly created Fat pipe */
2595 	if ((u32) params->tsid == (u32) WMI_IMPLICIT_PSTREAM) {
2596 		spin_lock_bh(&wmi->lock);
2597 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2598 					(1 << params->traffic_class));
2599 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2600 		spin_unlock_bh(&wmi->lock);
2601 	} else {
2602 		/* explicitly created thin stream within a fat pipe */
2603 		spin_lock_bh(&wmi->lock);
2604 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2605 					(1 << params->traffic_class));
2606 		wmi->stream_exist_for_ac[params->traffic_class] |=
2607 		    (1 << params->tsid);
2608 		/*
2609 		 * If a thinstream becomes active, the fat pipe automatically
2610 		 * becomes active
2611 		 */
2612 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2613 		spin_unlock_bh(&wmi->lock);
2614 	}
2615 
2616 	/*
2617 	 * Indicate activty change to driver layer only if this is the
2618 	 * first TSID to get created in this AC explicitly or an implicit
2619 	 * fat pipe is getting created.
2620 	 */
2621 	if (!fatpipe_exist_for_ac)
2622 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2623 					    params->traffic_class, true);
2624 
2625 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CREATE_PSTREAM_CMDID,
2626 				  NO_SYNC_WMIFLAG);
2627 	return ret;
2628 }
2629 
2630 int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 if_idx, u8 traffic_class,
2631 				  u8 tsid)
2632 {
2633 	struct sk_buff *skb;
2634 	struct wmi_delete_pstream_cmd *cmd;
2635 	u16 active_tsids = 0;
2636 	int ret;
2637 
2638 	if (traffic_class > 3) {
2639 		ath6kl_err("invalid traffic class: %d\n", traffic_class);
2640 		return -EINVAL;
2641 	}
2642 
2643 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2644 	if (!skb)
2645 		return -ENOMEM;
2646 
2647 	cmd = (struct wmi_delete_pstream_cmd *) skb->data;
2648 	cmd->traffic_class = traffic_class;
2649 	cmd->tsid = tsid;
2650 
2651 	spin_lock_bh(&wmi->lock);
2652 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2653 	spin_unlock_bh(&wmi->lock);
2654 
2655 	if (!(active_tsids & (1 << tsid))) {
2656 		dev_kfree_skb(skb);
2657 		ath6kl_dbg(ATH6KL_DBG_WMI,
2658 			   "TSID %d doesn't exist for traffic class: %d\n",
2659 			   tsid, traffic_class);
2660 		return -ENODATA;
2661 	}
2662 
2663 	ath6kl_dbg(ATH6KL_DBG_WMI,
2664 		   "sending delete_pstream_cmd: traffic class: %d tsid=%d\n",
2665 		   traffic_class, tsid);
2666 
2667 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_PSTREAM_CMDID,
2668 				  SYNC_BEFORE_WMIFLAG);
2669 
2670 	spin_lock_bh(&wmi->lock);
2671 	wmi->stream_exist_for_ac[traffic_class] &= ~(1 << tsid);
2672 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2673 	spin_unlock_bh(&wmi->lock);
2674 
2675 	/*
2676 	 * Indicate stream inactivity to driver layer only if all tsids
2677 	 * within this AC are deleted.
2678 	 */
2679 	if (!active_tsids) {
2680 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2681 					    traffic_class, false);
2682 		wmi->fat_pipe_exist &= ~(1 << traffic_class);
2683 	}
2684 
2685 	return ret;
2686 }
2687 
2688 int ath6kl_wmi_set_ip_cmd(struct wmi *wmi, u8 if_idx,
2689 			  __be32 ips0, __be32 ips1)
2690 {
2691 	struct sk_buff *skb;
2692 	struct wmi_set_ip_cmd *cmd;
2693 	int ret;
2694 
2695 	/* Multicast address are not valid */
2696 	if (ipv4_is_multicast(ips0) ||
2697 	    ipv4_is_multicast(ips1))
2698 		return -EINVAL;
2699 
2700 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_ip_cmd));
2701 	if (!skb)
2702 		return -ENOMEM;
2703 
2704 	cmd = (struct wmi_set_ip_cmd *) skb->data;
2705 	cmd->ips[0] = ips0;
2706 	cmd->ips[1] = ips1;
2707 
2708 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IP_CMDID,
2709 				  NO_SYNC_WMIFLAG);
2710 	return ret;
2711 }
2712 
2713 static void ath6kl_wmi_relinquish_implicit_pstream_credits(struct wmi *wmi)
2714 {
2715 	u16 active_tsids;
2716 	u8 stream_exist;
2717 	int i;
2718 
2719 	/*
2720 	 * Relinquish credits from all implicitly created pstreams
2721 	 * since when we go to sleep. If user created explicit
2722 	 * thinstreams exists with in a fatpipe leave them intact
2723 	 * for the user to delete.
2724 	 */
2725 	spin_lock_bh(&wmi->lock);
2726 	stream_exist = wmi->fat_pipe_exist;
2727 	spin_unlock_bh(&wmi->lock);
2728 
2729 	for (i = 0; i < WMM_NUM_AC; i++) {
2730 		if (stream_exist & (1 << i)) {
2731 			/*
2732 			 * FIXME: Is this lock & unlock inside
2733 			 * for loop correct? may need rework.
2734 			 */
2735 			spin_lock_bh(&wmi->lock);
2736 			active_tsids = wmi->stream_exist_for_ac[i];
2737 			spin_unlock_bh(&wmi->lock);
2738 
2739 			/*
2740 			 * If there are no user created thin streams
2741 			 * delete the fatpipe
2742 			 */
2743 			if (!active_tsids) {
2744 				stream_exist &= ~(1 << i);
2745 				/*
2746 				 * Indicate inactivity to driver layer for
2747 				 * this fatpipe (pstream)
2748 				 */
2749 				ath6kl_indicate_tx_activity(wmi->parent_dev,
2750 							    i, false);
2751 			}
2752 		}
2753 	}
2754 
2755 	/* FIXME: Can we do this assignment without locking ? */
2756 	spin_lock_bh(&wmi->lock);
2757 	wmi->fat_pipe_exist = stream_exist;
2758 	spin_unlock_bh(&wmi->lock);
2759 }
2760 
2761 static int ath6kl_set_bitrate_mask64(struct wmi *wmi, u8 if_idx,
2762 				     const struct cfg80211_bitrate_mask *mask)
2763 {
2764 	struct sk_buff *skb;
2765 	int ret, mode, band;
2766 	u64 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2767 	struct wmi_set_tx_select_rates64_cmd *cmd;
2768 
2769 	memset(&ratemask, 0, sizeof(ratemask));
2770 
2771 	/* only check 2.4 and 5 GHz bands, skip the rest */
2772 	for (band = 0; band <= NL80211_BAND_5GHZ; band++) {
2773 		/* copy legacy rate mask */
2774 		ratemask[band] = mask->control[band].legacy;
2775 		if (band == NL80211_BAND_5GHZ)
2776 			ratemask[band] =
2777 				mask->control[band].legacy << 4;
2778 
2779 		/* copy mcs rate mask */
2780 		mcsrate = mask->control[band].ht_mcs[1];
2781 		mcsrate <<= 8;
2782 		mcsrate |= mask->control[band].ht_mcs[0];
2783 		ratemask[band] |= mcsrate << 12;
2784 		ratemask[band] |= mcsrate << 28;
2785 	}
2786 
2787 	ath6kl_dbg(ATH6KL_DBG_WMI,
2788 		   "Ratemask 64 bit: 2.4:%llx 5:%llx\n",
2789 		   ratemask[0], ratemask[1]);
2790 
2791 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2792 	if (!skb)
2793 		return -ENOMEM;
2794 
2795 	cmd = (struct wmi_set_tx_select_rates64_cmd *) skb->data;
2796 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2797 		/* A mode operate in 5GHZ band */
2798 		if (mode == WMI_RATES_MODE_11A ||
2799 		    mode == WMI_RATES_MODE_11A_HT20 ||
2800 		    mode == WMI_RATES_MODE_11A_HT40)
2801 			band = NL80211_BAND_5GHZ;
2802 		else
2803 			band = NL80211_BAND_2GHZ;
2804 		cmd->ratemask[mode] = cpu_to_le64(ratemask[band]);
2805 	}
2806 
2807 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2808 				  WMI_SET_TX_SELECT_RATES_CMDID,
2809 				  NO_SYNC_WMIFLAG);
2810 	return ret;
2811 }
2812 
2813 static int ath6kl_set_bitrate_mask32(struct wmi *wmi, u8 if_idx,
2814 				     const struct cfg80211_bitrate_mask *mask)
2815 {
2816 	struct sk_buff *skb;
2817 	int ret, mode, band;
2818 	u32 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2819 	struct wmi_set_tx_select_rates32_cmd *cmd;
2820 
2821 	memset(&ratemask, 0, sizeof(ratemask));
2822 
2823 	/* only check 2.4 and 5 GHz bands, skip the rest */
2824 	for (band = 0; band <= NL80211_BAND_5GHZ; band++) {
2825 		/* copy legacy rate mask */
2826 		ratemask[band] = mask->control[band].legacy;
2827 		if (band == NL80211_BAND_5GHZ)
2828 			ratemask[band] =
2829 				mask->control[band].legacy << 4;
2830 
2831 		/* copy mcs rate mask */
2832 		mcsrate = mask->control[band].ht_mcs[0];
2833 		ratemask[band] |= mcsrate << 12;
2834 		ratemask[band] |= mcsrate << 20;
2835 	}
2836 
2837 	ath6kl_dbg(ATH6KL_DBG_WMI,
2838 		   "Ratemask 32 bit: 2.4:%x 5:%x\n",
2839 		   ratemask[0], ratemask[1]);
2840 
2841 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2842 	if (!skb)
2843 		return -ENOMEM;
2844 
2845 	cmd = (struct wmi_set_tx_select_rates32_cmd *) skb->data;
2846 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2847 		/* A mode operate in 5GHZ band */
2848 		if (mode == WMI_RATES_MODE_11A ||
2849 		    mode == WMI_RATES_MODE_11A_HT20 ||
2850 		    mode == WMI_RATES_MODE_11A_HT40)
2851 			band = NL80211_BAND_5GHZ;
2852 		else
2853 			band = NL80211_BAND_2GHZ;
2854 		cmd->ratemask[mode] = cpu_to_le32(ratemask[band]);
2855 	}
2856 
2857 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2858 				  WMI_SET_TX_SELECT_RATES_CMDID,
2859 				  NO_SYNC_WMIFLAG);
2860 	return ret;
2861 }
2862 
2863 int ath6kl_wmi_set_bitrate_mask(struct wmi *wmi, u8 if_idx,
2864 				const struct cfg80211_bitrate_mask *mask)
2865 {
2866 	struct ath6kl *ar = wmi->parent_dev;
2867 
2868 	if (test_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES,
2869 		     ar->fw_capabilities))
2870 		return ath6kl_set_bitrate_mask64(wmi, if_idx, mask);
2871 	else
2872 		return ath6kl_set_bitrate_mask32(wmi, if_idx, mask);
2873 }
2874 
2875 int ath6kl_wmi_set_host_sleep_mode_cmd(struct wmi *wmi, u8 if_idx,
2876 				       enum ath6kl_host_mode host_mode)
2877 {
2878 	struct sk_buff *skb;
2879 	struct wmi_set_host_sleep_mode_cmd *cmd;
2880 	int ret;
2881 
2882 	if ((host_mode != ATH6KL_HOST_MODE_ASLEEP) &&
2883 	    (host_mode != ATH6KL_HOST_MODE_AWAKE)) {
2884 		ath6kl_err("invalid host sleep mode: %d\n", host_mode);
2885 		return -EINVAL;
2886 	}
2887 
2888 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2889 	if (!skb)
2890 		return -ENOMEM;
2891 
2892 	cmd = (struct wmi_set_host_sleep_mode_cmd *) skb->data;
2893 
2894 	if (host_mode == ATH6KL_HOST_MODE_ASLEEP) {
2895 		ath6kl_wmi_relinquish_implicit_pstream_credits(wmi);
2896 		cmd->asleep = cpu_to_le32(1);
2897 	} else {
2898 		cmd->awake = cpu_to_le32(1);
2899 	}
2900 
2901 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2902 				  WMI_SET_HOST_SLEEP_MODE_CMDID,
2903 				  NO_SYNC_WMIFLAG);
2904 	return ret;
2905 }
2906 
2907 /* This command has zero length payload */
2908 static int ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(struct wmi *wmi,
2909 						      struct ath6kl_vif *vif)
2910 {
2911 	struct ath6kl *ar = wmi->parent_dev;
2912 
2913 	set_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2914 	wake_up(&ar->event_wq);
2915 
2916 	return 0;
2917 }
2918 
2919 int ath6kl_wmi_set_wow_mode_cmd(struct wmi *wmi, u8 if_idx,
2920 				enum ath6kl_wow_mode wow_mode,
2921 				u32 filter, u16 host_req_delay)
2922 {
2923 	struct sk_buff *skb;
2924 	struct wmi_set_wow_mode_cmd *cmd;
2925 	int ret;
2926 
2927 	if ((wow_mode != ATH6KL_WOW_MODE_ENABLE) &&
2928 	    wow_mode != ATH6KL_WOW_MODE_DISABLE) {
2929 		ath6kl_err("invalid wow mode: %d\n", wow_mode);
2930 		return -EINVAL;
2931 	}
2932 
2933 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2934 	if (!skb)
2935 		return -ENOMEM;
2936 
2937 	cmd = (struct wmi_set_wow_mode_cmd *) skb->data;
2938 	cmd->enable_wow = cpu_to_le32(wow_mode);
2939 	cmd->filter = cpu_to_le32(filter);
2940 	cmd->host_req_delay = cpu_to_le16(host_req_delay);
2941 
2942 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WOW_MODE_CMDID,
2943 				  NO_SYNC_WMIFLAG);
2944 	return ret;
2945 }
2946 
2947 int ath6kl_wmi_add_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2948 				   u8 list_id, u8 filter_size,
2949 				   u8 filter_offset, const u8 *filter,
2950 				   const u8 *mask)
2951 {
2952 	struct sk_buff *skb;
2953 	struct wmi_add_wow_pattern_cmd *cmd;
2954 	u16 size;
2955 	u8 *filter_mask;
2956 	int ret;
2957 
2958 	/*
2959 	 * Allocate additional memory in the buffer to hold
2960 	 * filter and mask value, which is twice of filter_size.
2961 	 */
2962 	size = sizeof(*cmd) + (2 * filter_size);
2963 
2964 	skb = ath6kl_wmi_get_new_buf(size);
2965 	if (!skb)
2966 		return -ENOMEM;
2967 
2968 	cmd = (struct wmi_add_wow_pattern_cmd *) skb->data;
2969 	cmd->filter_list_id = list_id;
2970 	cmd->filter_size = filter_size;
2971 	cmd->filter_offset = filter_offset;
2972 
2973 	memcpy(cmd->filter, filter, filter_size);
2974 
2975 	filter_mask = (u8 *) (cmd->filter + filter_size);
2976 	memcpy(filter_mask, mask, filter_size);
2977 
2978 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_WOW_PATTERN_CMDID,
2979 				  NO_SYNC_WMIFLAG);
2980 
2981 	return ret;
2982 }
2983 
2984 int ath6kl_wmi_del_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2985 				   u16 list_id, u16 filter_id)
2986 {
2987 	struct sk_buff *skb;
2988 	struct wmi_del_wow_pattern_cmd *cmd;
2989 	int ret;
2990 
2991 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2992 	if (!skb)
2993 		return -ENOMEM;
2994 
2995 	cmd = (struct wmi_del_wow_pattern_cmd *) skb->data;
2996 	cmd->filter_list_id = cpu_to_le16(list_id);
2997 	cmd->filter_id = cpu_to_le16(filter_id);
2998 
2999 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DEL_WOW_PATTERN_CMDID,
3000 				  NO_SYNC_WMIFLAG);
3001 	return ret;
3002 }
3003 
3004 static int ath6kl_wmi_cmd_send_xtnd(struct wmi *wmi, struct sk_buff *skb,
3005 				    enum wmix_command_id cmd_id,
3006 				    enum wmi_sync_flag sync_flag)
3007 {
3008 	struct wmix_cmd_hdr *cmd_hdr;
3009 	int ret;
3010 
3011 	skb_push(skb, sizeof(struct wmix_cmd_hdr));
3012 
3013 	cmd_hdr = (struct wmix_cmd_hdr *) skb->data;
3014 	cmd_hdr->cmd_id = cpu_to_le32(cmd_id);
3015 
3016 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_EXTENSION_CMDID, sync_flag);
3017 
3018 	return ret;
3019 }
3020 
3021 int ath6kl_wmi_get_challenge_resp_cmd(struct wmi *wmi, u32 cookie, u32 source)
3022 {
3023 	struct sk_buff *skb;
3024 	struct wmix_hb_challenge_resp_cmd *cmd;
3025 	int ret;
3026 
3027 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3028 	if (!skb)
3029 		return -ENOMEM;
3030 
3031 	cmd = (struct wmix_hb_challenge_resp_cmd *) skb->data;
3032 	cmd->cookie = cpu_to_le32(cookie);
3033 	cmd->source = cpu_to_le32(source);
3034 
3035 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_HB_CHALLENGE_RESP_CMDID,
3036 				       NO_SYNC_WMIFLAG);
3037 	return ret;
3038 }
3039 
3040 int ath6kl_wmi_config_debug_module_cmd(struct wmi *wmi, u32 valid, u32 config)
3041 {
3042 	struct ath6kl_wmix_dbglog_cfg_module_cmd *cmd;
3043 	struct sk_buff *skb;
3044 	int ret;
3045 
3046 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3047 	if (!skb)
3048 		return -ENOMEM;
3049 
3050 	cmd = (struct ath6kl_wmix_dbglog_cfg_module_cmd *) skb->data;
3051 	cmd->valid = cpu_to_le32(valid);
3052 	cmd->config = cpu_to_le32(config);
3053 
3054 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_DBGLOG_CFG_MODULE_CMDID,
3055 				       NO_SYNC_WMIFLAG);
3056 	return ret;
3057 }
3058 
3059 int ath6kl_wmi_get_stats_cmd(struct wmi *wmi, u8 if_idx)
3060 {
3061 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_STATISTICS_CMDID);
3062 }
3063 
3064 int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 if_idx, u8 dbM)
3065 {
3066 	struct sk_buff *skb;
3067 	struct wmi_set_tx_pwr_cmd *cmd;
3068 	int ret;
3069 
3070 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_tx_pwr_cmd));
3071 	if (!skb)
3072 		return -ENOMEM;
3073 
3074 	cmd = (struct wmi_set_tx_pwr_cmd *) skb->data;
3075 	cmd->dbM = dbM;
3076 
3077 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_TX_PWR_CMDID,
3078 				  NO_SYNC_WMIFLAG);
3079 
3080 	return ret;
3081 }
3082 
3083 int ath6kl_wmi_get_tx_pwr_cmd(struct wmi *wmi, u8 if_idx)
3084 {
3085 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_TX_PWR_CMDID);
3086 }
3087 
3088 int ath6kl_wmi_get_roam_tbl_cmd(struct wmi *wmi)
3089 {
3090 	return ath6kl_wmi_simple_cmd(wmi, 0, WMI_GET_ROAM_TBL_CMDID);
3091 }
3092 
3093 int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 if_idx, u8 status,
3094 				 u8 preamble_policy)
3095 {
3096 	struct sk_buff *skb;
3097 	struct wmi_set_lpreamble_cmd *cmd;
3098 	int ret;
3099 
3100 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_lpreamble_cmd));
3101 	if (!skb)
3102 		return -ENOMEM;
3103 
3104 	cmd = (struct wmi_set_lpreamble_cmd *) skb->data;
3105 	cmd->status = status;
3106 	cmd->preamble_policy = preamble_policy;
3107 
3108 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LPREAMBLE_CMDID,
3109 				  NO_SYNC_WMIFLAG);
3110 	return ret;
3111 }
3112 
3113 int ath6kl_wmi_set_rts_cmd(struct wmi *wmi, u16 threshold)
3114 {
3115 	struct sk_buff *skb;
3116 	struct wmi_set_rts_cmd *cmd;
3117 	int ret;
3118 
3119 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_rts_cmd));
3120 	if (!skb)
3121 		return -ENOMEM;
3122 
3123 	cmd = (struct wmi_set_rts_cmd *) skb->data;
3124 	cmd->threshold = cpu_to_le16(threshold);
3125 
3126 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_RTS_CMDID,
3127 				  NO_SYNC_WMIFLAG);
3128 	return ret;
3129 }
3130 
3131 int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, u8 if_idx, enum wmi_txop_cfg cfg)
3132 {
3133 	struct sk_buff *skb;
3134 	struct wmi_set_wmm_txop_cmd *cmd;
3135 	int ret;
3136 
3137 	if (!((cfg == WMI_TXOP_DISABLED) || (cfg == WMI_TXOP_ENABLED)))
3138 		return -EINVAL;
3139 
3140 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_wmm_txop_cmd));
3141 	if (!skb)
3142 		return -ENOMEM;
3143 
3144 	cmd = (struct wmi_set_wmm_txop_cmd *) skb->data;
3145 	cmd->txop_enable = cfg;
3146 
3147 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WMM_TXOP_CMDID,
3148 				  NO_SYNC_WMIFLAG);
3149 	return ret;
3150 }
3151 
3152 int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 if_idx,
3153 				 u8 keep_alive_intvl)
3154 {
3155 	struct sk_buff *skb;
3156 	struct wmi_set_keepalive_cmd *cmd;
3157 	int ret;
3158 
3159 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3160 	if (!skb)
3161 		return -ENOMEM;
3162 
3163 	cmd = (struct wmi_set_keepalive_cmd *) skb->data;
3164 	cmd->keep_alive_intvl = keep_alive_intvl;
3165 
3166 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_KEEPALIVE_CMDID,
3167 				  NO_SYNC_WMIFLAG);
3168 
3169 	if (ret == 0)
3170 		ath6kl_debug_set_keepalive(wmi->parent_dev, keep_alive_intvl);
3171 
3172 	return ret;
3173 }
3174 
3175 int ath6kl_wmi_set_htcap_cmd(struct wmi *wmi, u8 if_idx,
3176 			     enum nl80211_band band,
3177 			     struct ath6kl_htcap *htcap)
3178 {
3179 	struct sk_buff *skb;
3180 	struct wmi_set_htcap_cmd *cmd;
3181 
3182 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3183 	if (!skb)
3184 		return -ENOMEM;
3185 
3186 	cmd = (struct wmi_set_htcap_cmd *) skb->data;
3187 
3188 	/*
3189 	 * NOTE: Band in firmware matches enum nl80211_band, it is unlikely
3190 	 * this will be changed in firmware. If at all there is any change in
3191 	 * band value, the host needs to be fixed.
3192 	 */
3193 	cmd->band = band;
3194 	cmd->ht_enable = !!htcap->ht_enable;
3195 	cmd->ht20_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_20);
3196 	cmd->ht40_supported =
3197 		!!(htcap->cap_info & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
3198 	cmd->ht40_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_40);
3199 	cmd->intolerant_40mhz =
3200 		!!(htcap->cap_info & IEEE80211_HT_CAP_40MHZ_INTOLERANT);
3201 	cmd->max_ampdu_len_exp = htcap->ampdu_factor;
3202 
3203 	ath6kl_dbg(ATH6KL_DBG_WMI,
3204 		   "Set htcap: band:%d ht_enable:%d 40mhz:%d sgi_20mhz:%d sgi_40mhz:%d 40mhz_intolerant:%d ampdu_len_exp:%d\n",
3205 		   cmd->band, cmd->ht_enable, cmd->ht40_supported,
3206 		   cmd->ht20_sgi, cmd->ht40_sgi, cmd->intolerant_40mhz,
3207 		   cmd->max_ampdu_len_exp);
3208 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_HT_CAP_CMDID,
3209 				   NO_SYNC_WMIFLAG);
3210 }
3211 
3212 int ath6kl_wmi_test_cmd(struct wmi *wmi, void *buf, size_t len)
3213 {
3214 	struct sk_buff *skb;
3215 	int ret;
3216 
3217 	skb = ath6kl_wmi_get_new_buf(len);
3218 	if (!skb)
3219 		return -ENOMEM;
3220 
3221 	memcpy(skb->data, buf, len);
3222 
3223 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_TEST_CMDID, NO_SYNC_WMIFLAG);
3224 
3225 	return ret;
3226 }
3227 
3228 int ath6kl_wmi_mcast_filter_cmd(struct wmi *wmi, u8 if_idx, bool mc_all_on)
3229 {
3230 	struct sk_buff *skb;
3231 	struct wmi_mcast_filter_cmd *cmd;
3232 	int ret;
3233 
3234 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3235 	if (!skb)
3236 		return -ENOMEM;
3237 
3238 	cmd = (struct wmi_mcast_filter_cmd *) skb->data;
3239 	cmd->mcast_all_enable = mc_all_on;
3240 
3241 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_MCAST_FILTER_CMDID,
3242 				  NO_SYNC_WMIFLAG);
3243 	return ret;
3244 }
3245 
3246 int ath6kl_wmi_add_del_mcast_filter_cmd(struct wmi *wmi, u8 if_idx,
3247 					u8 *filter, bool add_filter)
3248 {
3249 	struct sk_buff *skb;
3250 	struct wmi_mcast_filter_add_del_cmd *cmd;
3251 	int ret;
3252 
3253 	if ((filter[0] != 0x33 || filter[1] != 0x33) &&
3254 	    (filter[0] != 0x01 || filter[1] != 0x00 ||
3255 	    filter[2] != 0x5e || filter[3] > 0x7f)) {
3256 		ath6kl_warn("invalid multicast filter address\n");
3257 		return -EINVAL;
3258 	}
3259 
3260 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3261 	if (!skb)
3262 		return -ENOMEM;
3263 
3264 	cmd = (struct wmi_mcast_filter_add_del_cmd *) skb->data;
3265 	memcpy(cmd->mcast_mac, filter, ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
3266 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3267 				  add_filter ? WMI_SET_MCAST_FILTER_CMDID :
3268 				  WMI_DEL_MCAST_FILTER_CMDID,
3269 				  NO_SYNC_WMIFLAG);
3270 
3271 	return ret;
3272 }
3273 
3274 int ath6kl_wmi_sta_bmiss_enhance_cmd(struct wmi *wmi, u8 if_idx, bool enhance)
3275 {
3276 	struct sk_buff *skb;
3277 	struct wmi_sta_bmiss_enhance_cmd *cmd;
3278 	int ret;
3279 
3280 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3281 	if (!skb)
3282 		return -ENOMEM;
3283 
3284 	cmd = (struct wmi_sta_bmiss_enhance_cmd *) skb->data;
3285 	cmd->enable = enhance ? 1 : 0;
3286 
3287 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3288 				  WMI_STA_BMISS_ENHANCE_CMDID,
3289 				  NO_SYNC_WMIFLAG);
3290 	return ret;
3291 }
3292 
3293 int ath6kl_wmi_set_regdomain_cmd(struct wmi *wmi, const char *alpha2)
3294 {
3295 	struct sk_buff *skb;
3296 	struct wmi_set_regdomain_cmd *cmd;
3297 
3298 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3299 	if (!skb)
3300 		return -ENOMEM;
3301 
3302 	cmd = (struct wmi_set_regdomain_cmd *) skb->data;
3303 	memcpy(cmd->iso_name, alpha2, 2);
3304 
3305 	return ath6kl_wmi_cmd_send(wmi, 0, skb,
3306 				   WMI_SET_REGDOMAIN_CMDID,
3307 				   NO_SYNC_WMIFLAG);
3308 }
3309 
3310 s32 ath6kl_wmi_get_rate(struct wmi *wmi, s8 rate_index)
3311 {
3312 	struct ath6kl *ar = wmi->parent_dev;
3313 	u8 sgi = 0;
3314 	s32 ret;
3315 
3316 	if (rate_index == RATE_AUTO)
3317 		return 0;
3318 
3319 	/* SGI is stored as the MSB of the rate_index */
3320 	if (rate_index & RATE_INDEX_MSB) {
3321 		rate_index &= RATE_INDEX_WITHOUT_SGI_MASK;
3322 		sgi = 1;
3323 	}
3324 
3325 	if (test_bit(ATH6KL_FW_CAPABILITY_RATETABLE_MCS15,
3326 		     ar->fw_capabilities)) {
3327 		if (WARN_ON(rate_index >= ARRAY_SIZE(wmi_rate_tbl_mcs15)))
3328 			return 0;
3329 
3330 		ret = wmi_rate_tbl_mcs15[(u32) rate_index][sgi];
3331 	} else {
3332 		if (WARN_ON(rate_index >= ARRAY_SIZE(wmi_rate_tbl)))
3333 			return 0;
3334 
3335 		ret = wmi_rate_tbl[(u32) rate_index][sgi];
3336 	}
3337 
3338 	return ret;
3339 }
3340 
3341 static int ath6kl_wmi_get_pmkid_list_event_rx(struct wmi *wmi, u8 *datap,
3342 					      u32 len)
3343 {
3344 	struct wmi_pmkid_list_reply *reply;
3345 	u32 expected_len;
3346 
3347 	if (len < sizeof(struct wmi_pmkid_list_reply))
3348 		return -EINVAL;
3349 
3350 	reply = (struct wmi_pmkid_list_reply *)datap;
3351 	expected_len = sizeof(reply->num_pmkid) +
3352 		le32_to_cpu(reply->num_pmkid) * WMI_PMKID_LEN;
3353 
3354 	if (len < expected_len)
3355 		return -EINVAL;
3356 
3357 	return 0;
3358 }
3359 
3360 static int ath6kl_wmi_addba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3361 					 struct ath6kl_vif *vif)
3362 {
3363 	struct wmi_addba_req_event *cmd = (struct wmi_addba_req_event *) datap;
3364 
3365 	aggr_recv_addba_req_evt(vif, cmd->tid,
3366 				le16_to_cpu(cmd->st_seq_no), cmd->win_sz);
3367 
3368 	return 0;
3369 }
3370 
3371 static int ath6kl_wmi_delba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3372 					 struct ath6kl_vif *vif)
3373 {
3374 	struct wmi_delba_event *cmd = (struct wmi_delba_event *) datap;
3375 
3376 	aggr_recv_delba_req_evt(vif, cmd->tid);
3377 
3378 	return 0;
3379 }
3380 
3381 /*  AP mode functions */
3382 
3383 int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, u8 if_idx,
3384 				 struct wmi_connect_cmd *p)
3385 {
3386 	struct sk_buff *skb;
3387 	struct wmi_connect_cmd *cm;
3388 	int res;
3389 
3390 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3391 	if (!skb)
3392 		return -ENOMEM;
3393 
3394 	cm = (struct wmi_connect_cmd *) skb->data;
3395 	memcpy(cm, p, sizeof(*cm));
3396 
3397 	res = ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_CONFIG_COMMIT_CMDID,
3398 				  NO_SYNC_WMIFLAG);
3399 	ath6kl_dbg(ATH6KL_DBG_WMI,
3400 		   "%s: nw_type=%u auth_mode=%u ch=%u ctrl_flags=0x%x-> res=%d\n",
3401 		   __func__, p->nw_type, p->auth_mode, le16_to_cpu(p->ch),
3402 		   le32_to_cpu(p->ctrl_flags), res);
3403 	return res;
3404 }
3405 
3406 int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 if_idx, u8 cmd, const u8 *mac,
3407 			   u16 reason)
3408 {
3409 	struct sk_buff *skb;
3410 	struct wmi_ap_set_mlme_cmd *cm;
3411 
3412 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3413 	if (!skb)
3414 		return -ENOMEM;
3415 
3416 	cm = (struct wmi_ap_set_mlme_cmd *) skb->data;
3417 	memcpy(cm->mac, mac, ETH_ALEN);
3418 	cm->reason = cpu_to_le16(reason);
3419 	cm->cmd = cmd;
3420 
3421 	ath6kl_dbg(ATH6KL_DBG_WMI, "ap_set_mlme: cmd=%d reason=%d\n", cm->cmd,
3422 		   cm->reason);
3423 
3424 	return ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_SET_MLME_CMDID,
3425 				   NO_SYNC_WMIFLAG);
3426 }
3427 
3428 int ath6kl_wmi_ap_hidden_ssid(struct wmi *wmi, u8 if_idx, bool enable)
3429 {
3430 	struct sk_buff *skb;
3431 	struct wmi_ap_hidden_ssid_cmd *cmd;
3432 
3433 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3434 	if (!skb)
3435 		return -ENOMEM;
3436 
3437 	cmd = (struct wmi_ap_hidden_ssid_cmd *) skb->data;
3438 	cmd->hidden_ssid = enable ? 1 : 0;
3439 
3440 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_HIDDEN_SSID_CMDID,
3441 				   NO_SYNC_WMIFLAG);
3442 }
3443 
3444 /* This command will be used to enable/disable AP uAPSD feature */
3445 int ath6kl_wmi_ap_set_apsd(struct wmi *wmi, u8 if_idx, u8 enable)
3446 {
3447 	struct wmi_ap_set_apsd_cmd *cmd;
3448 	struct sk_buff *skb;
3449 
3450 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3451 	if (!skb)
3452 		return -ENOMEM;
3453 
3454 	cmd = (struct wmi_ap_set_apsd_cmd *)skb->data;
3455 	cmd->enable = enable;
3456 
3457 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_APSD_CMDID,
3458 				   NO_SYNC_WMIFLAG);
3459 }
3460 
3461 int ath6kl_wmi_set_apsd_bfrd_traf(struct wmi *wmi, u8 if_idx,
3462 					     u16 aid, u16 bitmap, u32 flags)
3463 {
3464 	struct wmi_ap_apsd_buffered_traffic_cmd *cmd;
3465 	struct sk_buff *skb;
3466 
3467 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3468 	if (!skb)
3469 		return -ENOMEM;
3470 
3471 	cmd = (struct wmi_ap_apsd_buffered_traffic_cmd *)skb->data;
3472 	cmd->aid = cpu_to_le16(aid);
3473 	cmd->bitmap = cpu_to_le16(bitmap);
3474 	cmd->flags = cpu_to_le32(flags);
3475 
3476 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3477 				   WMI_AP_APSD_BUFFERED_TRAFFIC_CMDID,
3478 				   NO_SYNC_WMIFLAG);
3479 }
3480 
3481 static int ath6kl_wmi_pspoll_event_rx(struct wmi *wmi, u8 *datap, int len,
3482 				      struct ath6kl_vif *vif)
3483 {
3484 	struct wmi_pspoll_event *ev;
3485 
3486 	if (len < sizeof(struct wmi_pspoll_event))
3487 		return -EINVAL;
3488 
3489 	ev = (struct wmi_pspoll_event *) datap;
3490 
3491 	ath6kl_pspoll_event(vif, le16_to_cpu(ev->aid));
3492 
3493 	return 0;
3494 }
3495 
3496 static int ath6kl_wmi_dtimexpiry_event_rx(struct wmi *wmi, u8 *datap, int len,
3497 					  struct ath6kl_vif *vif)
3498 {
3499 	ath6kl_dtimexpiry_event(vif);
3500 
3501 	return 0;
3502 }
3503 
3504 int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u8 if_idx, u16 aid,
3505 			   bool flag)
3506 {
3507 	struct sk_buff *skb;
3508 	struct wmi_ap_set_pvb_cmd *cmd;
3509 	int ret;
3510 
3511 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_ap_set_pvb_cmd));
3512 	if (!skb)
3513 		return -ENOMEM;
3514 
3515 	cmd = (struct wmi_ap_set_pvb_cmd *) skb->data;
3516 	cmd->aid = cpu_to_le16(aid);
3517 	cmd->rsvd = cpu_to_le16(0);
3518 	cmd->flag = cpu_to_le32(flag);
3519 
3520 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_PVB_CMDID,
3521 				  NO_SYNC_WMIFLAG);
3522 
3523 	return ret;
3524 }
3525 
3526 int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 if_idx,
3527 				       u8 rx_meta_ver,
3528 				       bool rx_dot11_hdr, bool defrag_on_host)
3529 {
3530 	struct sk_buff *skb;
3531 	struct wmi_rx_frame_format_cmd *cmd;
3532 	int ret;
3533 
3534 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3535 	if (!skb)
3536 		return -ENOMEM;
3537 
3538 	cmd = (struct wmi_rx_frame_format_cmd *) skb->data;
3539 	cmd->dot11_hdr = rx_dot11_hdr ? 1 : 0;
3540 	cmd->defrag_on_host = defrag_on_host ? 1 : 0;
3541 	cmd->meta_ver = rx_meta_ver;
3542 
3543 	/* Delete the local aggr state, on host */
3544 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RX_FRAME_FORMAT_CMDID,
3545 				  NO_SYNC_WMIFLAG);
3546 
3547 	return ret;
3548 }
3549 
3550 int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type,
3551 			     const u8 *ie, u8 ie_len)
3552 {
3553 	struct sk_buff *skb;
3554 	struct wmi_set_appie_cmd *p;
3555 
3556 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3557 	if (!skb)
3558 		return -ENOMEM;
3559 
3560 	ath6kl_dbg(ATH6KL_DBG_WMI,
3561 		   "set_appie_cmd: mgmt_frm_type=%u ie_len=%u\n",
3562 		   mgmt_frm_type, ie_len);
3563 	p = (struct wmi_set_appie_cmd *) skb->data;
3564 	p->mgmt_frm_type = mgmt_frm_type;
3565 	p->ie_len = ie_len;
3566 
3567 	if (ie != NULL && ie_len > 0)
3568 		memcpy(p->ie_info, ie, ie_len);
3569 
3570 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_APPIE_CMDID,
3571 				   NO_SYNC_WMIFLAG);
3572 }
3573 
3574 int ath6kl_wmi_set_ie_cmd(struct wmi *wmi, u8 if_idx, u8 ie_id, u8 ie_field,
3575 			  const u8 *ie_info, u8 ie_len)
3576 {
3577 	struct sk_buff *skb;
3578 	struct wmi_set_ie_cmd *p;
3579 
3580 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3581 	if (!skb)
3582 		return -ENOMEM;
3583 
3584 	ath6kl_dbg(ATH6KL_DBG_WMI, "set_ie_cmd: ie_id=%u ie_ie_field=%u ie_len=%u\n",
3585 		   ie_id, ie_field, ie_len);
3586 	p = (struct wmi_set_ie_cmd *) skb->data;
3587 	p->ie_id = ie_id;
3588 	p->ie_field = ie_field;
3589 	p->ie_len = ie_len;
3590 	if (ie_info && ie_len > 0)
3591 		memcpy(p->ie_info, ie_info, ie_len);
3592 
3593 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IE_CMDID,
3594 				   NO_SYNC_WMIFLAG);
3595 }
3596 
3597 int ath6kl_wmi_disable_11b_rates_cmd(struct wmi *wmi, bool disable)
3598 {
3599 	struct sk_buff *skb;
3600 	struct wmi_disable_11b_rates_cmd *cmd;
3601 
3602 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3603 	if (!skb)
3604 		return -ENOMEM;
3605 
3606 	ath6kl_dbg(ATH6KL_DBG_WMI, "disable_11b_rates_cmd: disable=%u\n",
3607 		   disable);
3608 	cmd = (struct wmi_disable_11b_rates_cmd *) skb->data;
3609 	cmd->disable = disable ? 1 : 0;
3610 
3611 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_DISABLE_11B_RATES_CMDID,
3612 				   NO_SYNC_WMIFLAG);
3613 }
3614 
3615 int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx, u32 freq, u32 dur)
3616 {
3617 	struct sk_buff *skb;
3618 	struct wmi_remain_on_chnl_cmd *p;
3619 
3620 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3621 	if (!skb)
3622 		return -ENOMEM;
3623 
3624 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl_cmd: freq=%u dur=%u\n",
3625 		   freq, dur);
3626 	p = (struct wmi_remain_on_chnl_cmd *) skb->data;
3627 	p->freq = cpu_to_le32(freq);
3628 	p->duration = cpu_to_le32(dur);
3629 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_REMAIN_ON_CHNL_CMDID,
3630 				   NO_SYNC_WMIFLAG);
3631 }
3632 
3633 /* ath6kl_wmi_send_action_cmd is to be deprecated. Use
3634  * ath6kl_wmi_send_mgmt_cmd instead. The new function supports P2P
3635  * mgmt operations using station interface.
3636  */
3637 static int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3638 				      u32 freq, u32 wait, const u8 *data,
3639 				      u16 data_len)
3640 {
3641 	struct sk_buff *skb;
3642 	struct wmi_send_action_cmd *p;
3643 	u8 *buf;
3644 
3645 	if (wait)
3646 		return -EINVAL; /* Offload for wait not supported */
3647 
3648 	buf = kmalloc(data_len, GFP_KERNEL);
3649 	if (!buf)
3650 		return -ENOMEM;
3651 
3652 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3653 	if (!skb) {
3654 		kfree(buf);
3655 		return -ENOMEM;
3656 	}
3657 
3658 	kfree(wmi->last_mgmt_tx_frame);
3659 	memcpy(buf, data, data_len);
3660 	wmi->last_mgmt_tx_frame = buf;
3661 	wmi->last_mgmt_tx_frame_len = data_len;
3662 
3663 	ath6kl_dbg(ATH6KL_DBG_WMI,
3664 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3665 		   id, freq, wait, data_len);
3666 	p = (struct wmi_send_action_cmd *) skb->data;
3667 	p->id = cpu_to_le32(id);
3668 	p->freq = cpu_to_le32(freq);
3669 	p->wait = cpu_to_le32(wait);
3670 	p->len = cpu_to_le16(data_len);
3671 	memcpy(p->data, data, data_len);
3672 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_ACTION_CMDID,
3673 				   NO_SYNC_WMIFLAG);
3674 }
3675 
3676 static int __ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3677 				      u32 freq, u32 wait, const u8 *data,
3678 				      u16 data_len, u32 no_cck)
3679 {
3680 	struct sk_buff *skb;
3681 	struct wmi_send_mgmt_cmd *p;
3682 	u8 *buf;
3683 
3684 	if (wait)
3685 		return -EINVAL; /* Offload for wait not supported */
3686 
3687 	buf = kmalloc(data_len, GFP_KERNEL);
3688 	if (!buf)
3689 		return -ENOMEM;
3690 
3691 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3692 	if (!skb) {
3693 		kfree(buf);
3694 		return -ENOMEM;
3695 	}
3696 
3697 	kfree(wmi->last_mgmt_tx_frame);
3698 	memcpy(buf, data, data_len);
3699 	wmi->last_mgmt_tx_frame = buf;
3700 	wmi->last_mgmt_tx_frame_len = data_len;
3701 
3702 	ath6kl_dbg(ATH6KL_DBG_WMI,
3703 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3704 		   id, freq, wait, data_len);
3705 	p = (struct wmi_send_mgmt_cmd *) skb->data;
3706 	p->id = cpu_to_le32(id);
3707 	p->freq = cpu_to_le32(freq);
3708 	p->wait = cpu_to_le32(wait);
3709 	p->no_cck = cpu_to_le32(no_cck);
3710 	p->len = cpu_to_le16(data_len);
3711 	memcpy(p->data, data, data_len);
3712 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_MGMT_CMDID,
3713 				   NO_SYNC_WMIFLAG);
3714 }
3715 
3716 int ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id, u32 freq,
3717 				u32 wait, const u8 *data, u16 data_len,
3718 				u32 no_cck)
3719 {
3720 	int status;
3721 	struct ath6kl *ar = wmi->parent_dev;
3722 
3723 	if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
3724 		     ar->fw_capabilities)) {
3725 		/*
3726 		 * If capable of doing P2P mgmt operations using
3727 		 * station interface, send additional information like
3728 		 * supported rates to advertise and xmit rates for
3729 		 * probe requests
3730 		 */
3731 		status = __ath6kl_wmi_send_mgmt_cmd(ar->wmi, if_idx, id, freq,
3732 						    wait, data, data_len,
3733 						    no_cck);
3734 	} else {
3735 		status = ath6kl_wmi_send_action_cmd(ar->wmi, if_idx, id, freq,
3736 						    wait, data, data_len);
3737 	}
3738 
3739 	return status;
3740 }
3741 
3742 int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u8 if_idx, u32 freq,
3743 				       const u8 *dst, const u8 *data,
3744 				       u16 data_len)
3745 {
3746 	struct sk_buff *skb;
3747 	struct wmi_p2p_probe_response_cmd *p;
3748 	size_t cmd_len = sizeof(*p) + data_len;
3749 
3750 	if (data_len == 0)
3751 		cmd_len++; /* work around target minimum length requirement */
3752 
3753 	skb = ath6kl_wmi_get_new_buf(cmd_len);
3754 	if (!skb)
3755 		return -ENOMEM;
3756 
3757 	ath6kl_dbg(ATH6KL_DBG_WMI,
3758 		   "send_probe_response_cmd: freq=%u dst=%pM len=%u\n",
3759 		   freq, dst, data_len);
3760 	p = (struct wmi_p2p_probe_response_cmd *) skb->data;
3761 	p->freq = cpu_to_le32(freq);
3762 	memcpy(p->destination_addr, dst, ETH_ALEN);
3763 	p->len = cpu_to_le16(data_len);
3764 	memcpy(p->data, data, data_len);
3765 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3766 				   WMI_SEND_PROBE_RESPONSE_CMDID,
3767 				   NO_SYNC_WMIFLAG);
3768 }
3769 
3770 int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, u8 if_idx, bool enable)
3771 {
3772 	struct sk_buff *skb;
3773 	struct wmi_probe_req_report_cmd *p;
3774 
3775 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3776 	if (!skb)
3777 		return -ENOMEM;
3778 
3779 	ath6kl_dbg(ATH6KL_DBG_WMI, "probe_report_req_cmd: enable=%u\n",
3780 		   enable);
3781 	p = (struct wmi_probe_req_report_cmd *) skb->data;
3782 	p->enable = enable ? 1 : 0;
3783 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_PROBE_REQ_REPORT_CMDID,
3784 				   NO_SYNC_WMIFLAG);
3785 }
3786 
3787 int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u8 if_idx, u32 info_req_flags)
3788 {
3789 	struct sk_buff *skb;
3790 	struct wmi_get_p2p_info *p;
3791 
3792 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3793 	if (!skb)
3794 		return -ENOMEM;
3795 
3796 	ath6kl_dbg(ATH6KL_DBG_WMI, "info_req_cmd: flags=%x\n",
3797 		   info_req_flags);
3798 	p = (struct wmi_get_p2p_info *) skb->data;
3799 	p->info_req_flags = cpu_to_le32(info_req_flags);
3800 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_GET_P2P_INFO_CMDID,
3801 				   NO_SYNC_WMIFLAG);
3802 }
3803 
3804 int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx)
3805 {
3806 	ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl_cmd\n");
3807 	return ath6kl_wmi_simple_cmd(wmi, if_idx,
3808 				     WMI_CANCEL_REMAIN_ON_CHNL_CMDID);
3809 }
3810 
3811 int ath6kl_wmi_set_inact_period(struct wmi *wmi, u8 if_idx, int inact_timeout)
3812 {
3813 	struct sk_buff *skb;
3814 	struct wmi_set_inact_period_cmd *cmd;
3815 
3816 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3817 	if (!skb)
3818 		return -ENOMEM;
3819 
3820 	cmd = (struct wmi_set_inact_period_cmd *) skb->data;
3821 	cmd->inact_period = cpu_to_le32(inact_timeout);
3822 	cmd->num_null_func = 0;
3823 
3824 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_CONN_INACT_CMDID,
3825 				   NO_SYNC_WMIFLAG);
3826 }
3827 
3828 static void ath6kl_wmi_hb_challenge_resp_event(struct wmi *wmi, u8 *datap,
3829 					       int len)
3830 {
3831 	struct wmix_hb_challenge_resp_cmd *cmd;
3832 
3833 	if (len < sizeof(struct wmix_hb_challenge_resp_cmd))
3834 		return;
3835 
3836 	cmd = (struct wmix_hb_challenge_resp_cmd *) datap;
3837 	ath6kl_recovery_hb_event(wmi->parent_dev,
3838 				 le32_to_cpu(cmd->cookie));
3839 }
3840 
3841 static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb)
3842 {
3843 	struct wmix_cmd_hdr *cmd;
3844 	u32 len;
3845 	u16 id;
3846 	u8 *datap;
3847 	int ret = 0;
3848 
3849 	if (skb->len < sizeof(struct wmix_cmd_hdr)) {
3850 		ath6kl_err("bad packet 1\n");
3851 		return -EINVAL;
3852 	}
3853 
3854 	cmd = (struct wmix_cmd_hdr *) skb->data;
3855 	id = le32_to_cpu(cmd->cmd_id);
3856 
3857 	skb_pull(skb, sizeof(struct wmix_cmd_hdr));
3858 
3859 	datap = skb->data;
3860 	len = skb->len;
3861 
3862 	switch (id) {
3863 	case WMIX_HB_CHALLENGE_RESP_EVENTID:
3864 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event hb challenge resp\n");
3865 		ath6kl_wmi_hb_challenge_resp_event(wmi, datap, len);
3866 		break;
3867 	case WMIX_DBGLOG_EVENTID:
3868 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event dbglog len %d\n", len);
3869 		ath6kl_debug_fwlog_event(wmi->parent_dev, datap, len);
3870 		break;
3871 	default:
3872 		ath6kl_warn("unknown cmd id 0x%x\n", id);
3873 		ret = -EINVAL;
3874 		break;
3875 	}
3876 
3877 	return ret;
3878 }
3879 
3880 static int ath6kl_wmi_roam_tbl_event_rx(struct wmi *wmi, u8 *datap, int len)
3881 {
3882 	return ath6kl_debug_roam_tbl_event(wmi->parent_dev, datap, len);
3883 }
3884 
3885 /* Process interface specific wmi events, caller would free the datap */
3886 static int ath6kl_wmi_proc_events_vif(struct wmi *wmi, u16 if_idx, u16 cmd_id,
3887 					u8 *datap, u32 len)
3888 {
3889 	struct ath6kl_vif *vif;
3890 
3891 	vif = ath6kl_get_vif_by_index(wmi->parent_dev, if_idx);
3892 	if (!vif) {
3893 		ath6kl_dbg(ATH6KL_DBG_WMI,
3894 			   "Wmi event for unavailable vif, vif_index:%d\n",
3895 			    if_idx);
3896 		return -EINVAL;
3897 	}
3898 
3899 	switch (cmd_id) {
3900 	case WMI_CONNECT_EVENTID:
3901 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CONNECT_EVENTID\n");
3902 		return ath6kl_wmi_connect_event_rx(wmi, datap, len, vif);
3903 	case WMI_DISCONNECT_EVENTID:
3904 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DISCONNECT_EVENTID\n");
3905 		return ath6kl_wmi_disconnect_event_rx(wmi, datap, len, vif);
3906 	case WMI_TKIP_MICERR_EVENTID:
3907 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TKIP_MICERR_EVENTID\n");
3908 		return ath6kl_wmi_tkip_micerr_event_rx(wmi, datap, len, vif);
3909 	case WMI_BSSINFO_EVENTID:
3910 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_BSSINFO_EVENTID\n");
3911 		return ath6kl_wmi_bssinfo_event_rx(wmi, datap, len, vif);
3912 	case WMI_NEIGHBOR_REPORT_EVENTID:
3913 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_NEIGHBOR_REPORT_EVENTID\n");
3914 		return ath6kl_wmi_neighbor_report_event_rx(wmi, datap, len,
3915 							   vif);
3916 	case WMI_SCAN_COMPLETE_EVENTID:
3917 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SCAN_COMPLETE_EVENTID\n");
3918 		return ath6kl_wmi_scan_complete_rx(wmi, datap, len, vif);
3919 	case WMI_REPORT_STATISTICS_EVENTID:
3920 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_STATISTICS_EVENTID\n");
3921 		return ath6kl_wmi_stats_event_rx(wmi, datap, len, vif);
3922 	case WMI_CAC_EVENTID:
3923 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CAC_EVENTID\n");
3924 		return ath6kl_wmi_cac_event_rx(wmi, datap, len, vif);
3925 	case WMI_PSPOLL_EVENTID:
3926 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSPOLL_EVENTID\n");
3927 		return ath6kl_wmi_pspoll_event_rx(wmi, datap, len, vif);
3928 	case WMI_DTIMEXPIRY_EVENTID:
3929 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DTIMEXPIRY_EVENTID\n");
3930 		return ath6kl_wmi_dtimexpiry_event_rx(wmi, datap, len, vif);
3931 	case WMI_ADDBA_REQ_EVENTID:
3932 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_REQ_EVENTID\n");
3933 		return ath6kl_wmi_addba_req_event_rx(wmi, datap, len, vif);
3934 	case WMI_DELBA_REQ_EVENTID:
3935 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DELBA_REQ_EVENTID\n");
3936 		return ath6kl_wmi_delba_req_event_rx(wmi, datap, len, vif);
3937 	case WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID:
3938 		ath6kl_dbg(ATH6KL_DBG_WMI,
3939 			   "WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID");
3940 		return ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(wmi, vif);
3941 	case WMI_REMAIN_ON_CHNL_EVENTID:
3942 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REMAIN_ON_CHNL_EVENTID\n");
3943 		return ath6kl_wmi_remain_on_chnl_event_rx(wmi, datap, len, vif);
3944 	case WMI_CANCEL_REMAIN_ON_CHNL_EVENTID:
3945 		ath6kl_dbg(ATH6KL_DBG_WMI,
3946 			   "WMI_CANCEL_REMAIN_ON_CHNL_EVENTID\n");
3947 		return ath6kl_wmi_cancel_remain_on_chnl_event_rx(wmi, datap,
3948 								 len, vif);
3949 	case WMI_TX_STATUS_EVENTID:
3950 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_STATUS_EVENTID\n");
3951 		return ath6kl_wmi_tx_status_event_rx(wmi, datap, len, vif);
3952 	case WMI_RX_PROBE_REQ_EVENTID:
3953 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_PROBE_REQ_EVENTID\n");
3954 		return ath6kl_wmi_rx_probe_req_event_rx(wmi, datap, len, vif);
3955 	case WMI_RX_ACTION_EVENTID:
3956 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_ACTION_EVENTID\n");
3957 		return ath6kl_wmi_rx_action_event_rx(wmi, datap, len, vif);
3958 	case WMI_TXE_NOTIFY_EVENTID:
3959 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TXE_NOTIFY_EVENTID\n");
3960 		return ath6kl_wmi_txe_notify_event_rx(wmi, datap, len, vif);
3961 	default:
3962 		ath6kl_dbg(ATH6KL_DBG_WMI, "unknown cmd id 0x%x\n", cmd_id);
3963 		return -EINVAL;
3964 	}
3965 
3966 	return 0;
3967 }
3968 
3969 static int ath6kl_wmi_proc_events(struct wmi *wmi, struct sk_buff *skb)
3970 {
3971 	struct wmi_cmd_hdr *cmd;
3972 	int ret = 0;
3973 	u32 len;
3974 	u16 id;
3975 	u8 if_idx;
3976 	u8 *datap;
3977 
3978 	cmd = (struct wmi_cmd_hdr *) skb->data;
3979 	id = le16_to_cpu(cmd->cmd_id);
3980 	if_idx = le16_to_cpu(cmd->info1) & WMI_CMD_HDR_IF_ID_MASK;
3981 
3982 	skb_pull(skb, sizeof(struct wmi_cmd_hdr));
3983 	datap = skb->data;
3984 	len = skb->len;
3985 
3986 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi rx id %d len %d\n", id, len);
3987 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi rx ",
3988 			datap, len);
3989 
3990 	switch (id) {
3991 	case WMI_GET_BITRATE_CMDID:
3992 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_BITRATE_CMDID\n");
3993 		ret = ath6kl_wmi_bitrate_reply_rx(wmi, datap, len);
3994 		break;
3995 	case WMI_GET_CHANNEL_LIST_CMDID:
3996 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_CHANNEL_LIST_CMDID\n");
3997 		ret = ath6kl_wmi_ch_list_reply_rx(wmi, datap, len);
3998 		break;
3999 	case WMI_GET_TX_PWR_CMDID:
4000 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_TX_PWR_CMDID\n");
4001 		ret = ath6kl_wmi_tx_pwr_reply_rx(wmi, datap, len);
4002 		break;
4003 	case WMI_READY_EVENTID:
4004 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_READY_EVENTID\n");
4005 		ret = ath6kl_wmi_ready_event_rx(wmi, datap, len);
4006 		break;
4007 	case WMI_PEER_NODE_EVENTID:
4008 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PEER_NODE_EVENTID\n");
4009 		ret = ath6kl_wmi_peer_node_event_rx(wmi, datap, len);
4010 		break;
4011 	case WMI_REGDOMAIN_EVENTID:
4012 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REGDOMAIN_EVENTID\n");
4013 		ath6kl_wmi_regdomain_event(wmi, datap, len);
4014 		break;
4015 	case WMI_PSTREAM_TIMEOUT_EVENTID:
4016 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSTREAM_TIMEOUT_EVENTID\n");
4017 		ret = ath6kl_wmi_pstream_timeout_event_rx(wmi, datap, len);
4018 		break;
4019 	case WMI_CMDERROR_EVENTID:
4020 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CMDERROR_EVENTID\n");
4021 		ret = ath6kl_wmi_error_event_rx(wmi, datap, len);
4022 		break;
4023 	case WMI_RSSI_THRESHOLD_EVENTID:
4024 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RSSI_THRESHOLD_EVENTID\n");
4025 		ret = ath6kl_wmi_rssi_threshold_event_rx(wmi, datap, len);
4026 		break;
4027 	case WMI_ERROR_REPORT_EVENTID:
4028 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ERROR_REPORT_EVENTID\n");
4029 		break;
4030 	case WMI_OPT_RX_FRAME_EVENTID:
4031 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_OPT_RX_FRAME_EVENTID\n");
4032 		/* this event has been deprecated */
4033 		break;
4034 	case WMI_REPORT_ROAM_TBL_EVENTID:
4035 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_TBL_EVENTID\n");
4036 		ret = ath6kl_wmi_roam_tbl_event_rx(wmi, datap, len);
4037 		break;
4038 	case WMI_EXTENSION_EVENTID:
4039 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_EXTENSION_EVENTID\n");
4040 		ret = ath6kl_wmi_control_rx_xtnd(wmi, skb);
4041 		break;
4042 	case WMI_CHANNEL_CHANGE_EVENTID:
4043 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CHANNEL_CHANGE_EVENTID\n");
4044 		break;
4045 	case WMI_REPORT_ROAM_DATA_EVENTID:
4046 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_DATA_EVENTID\n");
4047 		break;
4048 	case WMI_TEST_EVENTID:
4049 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TEST_EVENTID\n");
4050 		ret = ath6kl_wmi_test_rx(wmi, datap, len);
4051 		break;
4052 	case WMI_GET_FIXRATES_CMDID:
4053 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_FIXRATES_CMDID\n");
4054 		ret = ath6kl_wmi_ratemask_reply_rx(wmi, datap, len);
4055 		break;
4056 	case WMI_TX_RETRY_ERR_EVENTID:
4057 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_RETRY_ERR_EVENTID\n");
4058 		break;
4059 	case WMI_SNR_THRESHOLD_EVENTID:
4060 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SNR_THRESHOLD_EVENTID\n");
4061 		ret = ath6kl_wmi_snr_threshold_event_rx(wmi, datap, len);
4062 		break;
4063 	case WMI_LQ_THRESHOLD_EVENTID:
4064 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_LQ_THRESHOLD_EVENTID\n");
4065 		break;
4066 	case WMI_APLIST_EVENTID:
4067 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_APLIST_EVENTID\n");
4068 		ret = ath6kl_wmi_aplist_event_rx(wmi, datap, len);
4069 		break;
4070 	case WMI_GET_KEEPALIVE_CMDID:
4071 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_KEEPALIVE_CMDID\n");
4072 		ret = ath6kl_wmi_keepalive_reply_rx(wmi, datap, len);
4073 		break;
4074 	case WMI_GET_WOW_LIST_EVENTID:
4075 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_WOW_LIST_EVENTID\n");
4076 		break;
4077 	case WMI_GET_PMKID_LIST_EVENTID:
4078 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_PMKID_LIST_EVENTID\n");
4079 		ret = ath6kl_wmi_get_pmkid_list_event_rx(wmi, datap, len);
4080 		break;
4081 	case WMI_SET_PARAMS_REPLY_EVENTID:
4082 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SET_PARAMS_REPLY_EVENTID\n");
4083 		break;
4084 	case WMI_ADDBA_RESP_EVENTID:
4085 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_RESP_EVENTID\n");
4086 		break;
4087 	case WMI_REPORT_BTCOEX_CONFIG_EVENTID:
4088 		ath6kl_dbg(ATH6KL_DBG_WMI,
4089 			   "WMI_REPORT_BTCOEX_CONFIG_EVENTID\n");
4090 		break;
4091 	case WMI_REPORT_BTCOEX_STATS_EVENTID:
4092 		ath6kl_dbg(ATH6KL_DBG_WMI,
4093 			   "WMI_REPORT_BTCOEX_STATS_EVENTID\n");
4094 		break;
4095 	case WMI_TX_COMPLETE_EVENTID:
4096 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_COMPLETE_EVENTID\n");
4097 		ret = ath6kl_wmi_tx_complete_event_rx(datap, len);
4098 		break;
4099 	case WMI_P2P_CAPABILITIES_EVENTID:
4100 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_CAPABILITIES_EVENTID\n");
4101 		ret = ath6kl_wmi_p2p_capabilities_event_rx(datap, len);
4102 		break;
4103 	case WMI_P2P_INFO_EVENTID:
4104 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_INFO_EVENTID\n");
4105 		ret = ath6kl_wmi_p2p_info_event_rx(datap, len);
4106 		break;
4107 	default:
4108 		/* may be the event is interface specific */
4109 		ret = ath6kl_wmi_proc_events_vif(wmi, if_idx, id, datap, len);
4110 		break;
4111 	}
4112 
4113 	dev_kfree_skb(skb);
4114 	return ret;
4115 }
4116 
4117 /* Control Path */
4118 int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb)
4119 {
4120 	if (WARN_ON(skb == NULL))
4121 		return -EINVAL;
4122 
4123 	if (skb->len < sizeof(struct wmi_cmd_hdr)) {
4124 		ath6kl_err("bad packet 1\n");
4125 		dev_kfree_skb(skb);
4126 		return -EINVAL;
4127 	}
4128 
4129 	trace_ath6kl_wmi_event(skb->data, skb->len);
4130 
4131 	return ath6kl_wmi_proc_events(wmi, skb);
4132 }
4133 
4134 void ath6kl_wmi_reset(struct wmi *wmi)
4135 {
4136 	spin_lock_bh(&wmi->lock);
4137 
4138 	wmi->fat_pipe_exist = 0;
4139 	memset(wmi->stream_exist_for_ac, 0, sizeof(wmi->stream_exist_for_ac));
4140 
4141 	spin_unlock_bh(&wmi->lock);
4142 }
4143 
4144 void *ath6kl_wmi_init(struct ath6kl *dev)
4145 {
4146 	struct wmi *wmi;
4147 
4148 	wmi = kzalloc(sizeof(struct wmi), GFP_KERNEL);
4149 	if (!wmi)
4150 		return NULL;
4151 
4152 	spin_lock_init(&wmi->lock);
4153 
4154 	wmi->parent_dev = dev;
4155 
4156 	wmi->pwr_mode = REC_POWER;
4157 
4158 	ath6kl_wmi_reset(wmi);
4159 
4160 	return wmi;
4161 }
4162 
4163 void ath6kl_wmi_shutdown(struct wmi *wmi)
4164 {
4165 	if (!wmi)
4166 		return;
4167 
4168 	kfree(wmi->last_mgmt_tx_frame);
4169 	kfree(wmi);
4170 }
4171