xref: /openbmc/linux/drivers/net/wireless/ath/ath6kl/wmi.c (revision 92332993)
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 "../regd.h"
24 #include "../regd_common.h"
25 
26 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx);
27 
28 static const s32 wmi_rate_tbl[][2] = {
29 	/* {W/O SGI, with SGI} */
30 	{1000, 1000},
31 	{2000, 2000},
32 	{5500, 5500},
33 	{11000, 11000},
34 	{6000, 6000},
35 	{9000, 9000},
36 	{12000, 12000},
37 	{18000, 18000},
38 	{24000, 24000},
39 	{36000, 36000},
40 	{48000, 48000},
41 	{54000, 54000},
42 	{6500, 7200},
43 	{13000, 14400},
44 	{19500, 21700},
45 	{26000, 28900},
46 	{39000, 43300},
47 	{52000, 57800},
48 	{58500, 65000},
49 	{65000, 72200},
50 	{13500, 15000},
51 	{27000, 30000},
52 	{40500, 45000},
53 	{54000, 60000},
54 	{81000, 90000},
55 	{108000, 120000},
56 	{121500, 135000},
57 	{135000, 150000},
58 	{0, 0}
59 };
60 
61 /* 802.1d to AC mapping. Refer pg 57 of WMM-test-plan-v1.2 */
62 static const u8 up_to_ac[] = {
63 	WMM_AC_BE,
64 	WMM_AC_BK,
65 	WMM_AC_BK,
66 	WMM_AC_BE,
67 	WMM_AC_VI,
68 	WMM_AC_VI,
69 	WMM_AC_VO,
70 	WMM_AC_VO,
71 };
72 
73 void ath6kl_wmi_set_control_ep(struct wmi *wmi, enum htc_endpoint_id ep_id)
74 {
75 	if (WARN_ON(ep_id == ENDPOINT_UNUSED || ep_id >= ENDPOINT_MAX))
76 		return;
77 
78 	wmi->ep_id = ep_id;
79 }
80 
81 enum htc_endpoint_id ath6kl_wmi_get_control_ep(struct wmi *wmi)
82 {
83 	return wmi->ep_id;
84 }
85 
86 struct ath6kl_vif *ath6kl_get_vif_by_index(struct ath6kl *ar, u8 if_idx)
87 {
88 	struct ath6kl_vif *vif, *found = NULL;
89 
90 	if (WARN_ON(if_idx > (ar->vif_max - 1)))
91 		return NULL;
92 
93 	/* FIXME: Locking */
94 	spin_lock_bh(&ar->list_lock);
95 	list_for_each_entry(vif, &ar->vif_list, list) {
96 		if (vif->fw_vif_idx == if_idx) {
97 			found = vif;
98 			break;
99 		}
100 	}
101 	spin_unlock_bh(&ar->list_lock);
102 
103 	return found;
104 }
105 
106 /*  Performs DIX to 802.3 encapsulation for transmit packets.
107  *  Assumes the entire DIX header is contigous and that there is
108  *  enough room in the buffer for a 802.3 mac header and LLC+SNAP headers.
109  */
110 int ath6kl_wmi_dix_2_dot3(struct wmi *wmi, struct sk_buff *skb)
111 {
112 	struct ath6kl_llc_snap_hdr *llc_hdr;
113 	struct ethhdr *eth_hdr;
114 	size_t new_len;
115 	__be16 type;
116 	u8 *datap;
117 	u16 size;
118 
119 	if (WARN_ON(skb == NULL))
120 		return -EINVAL;
121 
122 	size = sizeof(struct ath6kl_llc_snap_hdr) + sizeof(struct wmi_data_hdr);
123 	if (skb_headroom(skb) < size)
124 		return -ENOMEM;
125 
126 	eth_hdr = (struct ethhdr *) skb->data;
127 	type = eth_hdr->h_proto;
128 
129 	if (!is_ethertype(be16_to_cpu(type))) {
130 		ath6kl_dbg(ATH6KL_DBG_WMI,
131 			   "%s: pkt is already in 802.3 format\n", __func__);
132 		return 0;
133 	}
134 
135 	new_len = skb->len - sizeof(*eth_hdr) + sizeof(*llc_hdr);
136 
137 	skb_push(skb, sizeof(struct ath6kl_llc_snap_hdr));
138 	datap = skb->data;
139 
140 	eth_hdr->h_proto = cpu_to_be16(new_len);
141 
142 	memcpy(datap, eth_hdr, sizeof(*eth_hdr));
143 
144 	llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap + sizeof(*eth_hdr));
145 	llc_hdr->dsap = 0xAA;
146 	llc_hdr->ssap = 0xAA;
147 	llc_hdr->cntl = 0x03;
148 	llc_hdr->org_code[0] = 0x0;
149 	llc_hdr->org_code[1] = 0x0;
150 	llc_hdr->org_code[2] = 0x0;
151 	llc_hdr->eth_type = type;
152 
153 	return 0;
154 }
155 
156 static int ath6kl_wmi_meta_add(struct wmi *wmi, struct sk_buff *skb,
157 			       u8 *version, void *tx_meta_info)
158 {
159 	struct wmi_tx_meta_v1 *v1;
160 	struct wmi_tx_meta_v2 *v2;
161 
162 	if (WARN_ON(skb == NULL || version == NULL))
163 		return -EINVAL;
164 
165 	switch (*version) {
166 	case WMI_META_VERSION_1:
167 		skb_push(skb, WMI_MAX_TX_META_SZ);
168 		v1 = (struct wmi_tx_meta_v1 *) skb->data;
169 		v1->pkt_id = 0;
170 		v1->rate_plcy_id = 0;
171 		*version = WMI_META_VERSION_1;
172 		break;
173 	case WMI_META_VERSION_2:
174 		skb_push(skb, WMI_MAX_TX_META_SZ);
175 		v2 = (struct wmi_tx_meta_v2 *) skb->data;
176 		memcpy(v2, (struct wmi_tx_meta_v2 *) tx_meta_info,
177 		       sizeof(struct wmi_tx_meta_v2));
178 		break;
179 	}
180 
181 	return 0;
182 }
183 
184 int ath6kl_wmi_data_hdr_add(struct wmi *wmi, struct sk_buff *skb,
185 			    u8 msg_type, u32 flags,
186 			    enum wmi_data_hdr_data_type data_type,
187 			    u8 meta_ver, void *tx_meta_info, u8 if_idx)
188 {
189 	struct wmi_data_hdr *data_hdr;
190 	int ret;
191 
192 	if (WARN_ON(skb == NULL || (if_idx > wmi->parent_dev->vif_max - 1)))
193 		return -EINVAL;
194 
195 	if (tx_meta_info) {
196 		ret = ath6kl_wmi_meta_add(wmi, skb, &meta_ver, tx_meta_info);
197 		if (ret)
198 			return ret;
199 	}
200 
201 	skb_push(skb, sizeof(struct wmi_data_hdr));
202 
203 	data_hdr = (struct wmi_data_hdr *)skb->data;
204 	memset(data_hdr, 0, sizeof(struct wmi_data_hdr));
205 
206 	data_hdr->info = msg_type << WMI_DATA_HDR_MSG_TYPE_SHIFT;
207 	data_hdr->info |= data_type << WMI_DATA_HDR_DATA_TYPE_SHIFT;
208 
209 	if (flags & WMI_DATA_HDR_FLAGS_MORE)
210 		data_hdr->info |= WMI_DATA_HDR_MORE;
211 
212 	if (flags & WMI_DATA_HDR_FLAGS_EOSP)
213 		data_hdr->info3 |= cpu_to_le16(WMI_DATA_HDR_EOSP);
214 
215 	data_hdr->info2 |= cpu_to_le16(meta_ver << WMI_DATA_HDR_META_SHIFT);
216 	data_hdr->info3 |= cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
217 
218 	return 0;
219 }
220 
221 u8 ath6kl_wmi_determine_user_priority(u8 *pkt, u32 layer2_pri)
222 {
223 	struct iphdr *ip_hdr = (struct iphdr *) pkt;
224 	u8 ip_pri;
225 
226 	/*
227 	 * Determine IPTOS priority
228 	 *
229 	 * IP-TOS - 8bits
230 	 *          : DSCP(6-bits) ECN(2-bits)
231 	 *          : DSCP - P2 P1 P0 X X X
232 	 * where (P2 P1 P0) form 802.1D
233 	 */
234 	ip_pri = ip_hdr->tos >> 5;
235 	ip_pri &= 0x7;
236 
237 	if ((layer2_pri & 0x7) > ip_pri)
238 		return (u8) layer2_pri & 0x7;
239 	else
240 		return ip_pri;
241 }
242 
243 u8 ath6kl_wmi_get_traffic_class(u8 user_priority)
244 {
245 	return  up_to_ac[user_priority & 0x7];
246 }
247 
248 int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, u8 if_idx,
249 				       struct sk_buff *skb,
250 				       u32 layer2_priority, bool wmm_enabled,
251 				       u8 *ac)
252 {
253 	struct wmi_data_hdr *data_hdr;
254 	struct ath6kl_llc_snap_hdr *llc_hdr;
255 	struct wmi_create_pstream_cmd cmd;
256 	u32 meta_size, hdr_size;
257 	u16 ip_type = IP_ETHERTYPE;
258 	u8 stream_exist, usr_pri;
259 	u8 traffic_class = WMM_AC_BE;
260 	u8 *datap;
261 
262 	if (WARN_ON(skb == NULL))
263 		return -EINVAL;
264 
265 	datap = skb->data;
266 	data_hdr = (struct wmi_data_hdr *) datap;
267 
268 	meta_size = ((le16_to_cpu(data_hdr->info2) >> WMI_DATA_HDR_META_SHIFT) &
269 		     WMI_DATA_HDR_META_MASK) ? WMI_MAX_TX_META_SZ : 0;
270 
271 	if (!wmm_enabled) {
272 		/* If WMM is disabled all traffic goes as BE traffic */
273 		usr_pri = 0;
274 	} else {
275 		hdr_size = sizeof(struct ethhdr);
276 
277 		llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap +
278 							 sizeof(struct
279 								wmi_data_hdr) +
280 							 meta_size + hdr_size);
281 
282 		if (llc_hdr->eth_type == htons(ip_type)) {
283 			/*
284 			 * Extract the endpoint info from the TOS field
285 			 * in the IP header.
286 			 */
287 			usr_pri =
288 			   ath6kl_wmi_determine_user_priority(((u8 *) llc_hdr) +
289 					sizeof(struct ath6kl_llc_snap_hdr),
290 					layer2_priority);
291 		} else
292 			usr_pri = layer2_priority & 0x7;
293 
294 		/*
295 		 * Queue the EAPOL frames in the same WMM_AC_VO queue
296 		 * as that of management frames.
297 		 */
298 		if (skb->protocol == cpu_to_be16(ETH_P_PAE))
299 			usr_pri = WMI_VOICE_USER_PRIORITY;
300 	}
301 
302 	/*
303 	 * workaround for WMM S5
304 	 *
305 	 * FIXME: wmi->traffic_class is always 100 so this test doesn't
306 	 * make sense
307 	 */
308 	if ((wmi->traffic_class == WMM_AC_VI) &&
309 	    ((usr_pri == 5) || (usr_pri == 4)))
310 		usr_pri = 1;
311 
312 	/* Convert user priority to traffic class */
313 	traffic_class = up_to_ac[usr_pri & 0x7];
314 
315 	wmi_data_hdr_set_up(data_hdr, usr_pri);
316 
317 	spin_lock_bh(&wmi->lock);
318 	stream_exist = wmi->fat_pipe_exist;
319 	spin_unlock_bh(&wmi->lock);
320 
321 	if (!(stream_exist & (1 << traffic_class))) {
322 		memset(&cmd, 0, sizeof(cmd));
323 		cmd.traffic_class = traffic_class;
324 		cmd.user_pri = usr_pri;
325 		cmd.inactivity_int =
326 			cpu_to_le32(WMI_IMPLICIT_PSTREAM_INACTIVITY_INT);
327 		/* Implicit streams are created with TSID 0xFF */
328 		cmd.tsid = WMI_IMPLICIT_PSTREAM;
329 		ath6kl_wmi_create_pstream_cmd(wmi, if_idx, &cmd);
330 	}
331 
332 	*ac = traffic_class;
333 
334 	return 0;
335 }
336 
337 int ath6kl_wmi_dot11_hdr_remove(struct wmi *wmi, struct sk_buff *skb)
338 {
339 	struct ieee80211_hdr_3addr *pwh, wh;
340 	struct ath6kl_llc_snap_hdr *llc_hdr;
341 	struct ethhdr eth_hdr;
342 	u32 hdr_size;
343 	u8 *datap;
344 	__le16 sub_type;
345 
346 	if (WARN_ON(skb == NULL))
347 		return -EINVAL;
348 
349 	datap = skb->data;
350 	pwh = (struct ieee80211_hdr_3addr *) datap;
351 
352 	sub_type = pwh->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE);
353 
354 	memcpy((u8 *) &wh, datap, sizeof(struct ieee80211_hdr_3addr));
355 
356 	/* Strip off the 802.11 header */
357 	if (sub_type == cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
358 		hdr_size = roundup(sizeof(struct ieee80211_qos_hdr),
359 				   sizeof(u32));
360 		skb_pull(skb, hdr_size);
361 	} else if (sub_type == cpu_to_le16(IEEE80211_STYPE_DATA))
362 		skb_pull(skb, sizeof(struct ieee80211_hdr_3addr));
363 
364 	datap = skb->data;
365 	llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap);
366 
367 	memset(&eth_hdr, 0, sizeof(eth_hdr));
368 	eth_hdr.h_proto = llc_hdr->eth_type;
369 
370 	switch ((le16_to_cpu(wh.frame_control)) &
371 		(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
372 	case 0:
373 		memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
374 		memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
375 		break;
376 	case IEEE80211_FCTL_TODS:
377 		memcpy(eth_hdr.h_dest, wh.addr3, ETH_ALEN);
378 		memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
379 		break;
380 	case IEEE80211_FCTL_FROMDS:
381 		memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
382 		memcpy(eth_hdr.h_source, wh.addr3, ETH_ALEN);
383 		break;
384 	case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS:
385 		break;
386 	}
387 
388 	skb_pull(skb, sizeof(struct ath6kl_llc_snap_hdr));
389 	skb_push(skb, sizeof(eth_hdr));
390 
391 	datap = skb->data;
392 
393 	memcpy(datap, &eth_hdr, sizeof(eth_hdr));
394 
395 	return 0;
396 }
397 
398 /*
399  * Performs 802.3 to DIX encapsulation for received packets.
400  * Assumes the entire 802.3 header is contigous.
401  */
402 int ath6kl_wmi_dot3_2_dix(struct sk_buff *skb)
403 {
404 	struct ath6kl_llc_snap_hdr *llc_hdr;
405 	struct ethhdr eth_hdr;
406 	u8 *datap;
407 
408 	if (WARN_ON(skb == NULL))
409 		return -EINVAL;
410 
411 	datap = skb->data;
412 
413 	memcpy(&eth_hdr, datap, sizeof(eth_hdr));
414 
415 	llc_hdr = (struct ath6kl_llc_snap_hdr *) (datap + sizeof(eth_hdr));
416 	eth_hdr.h_proto = llc_hdr->eth_type;
417 
418 	skb_pull(skb, sizeof(struct ath6kl_llc_snap_hdr));
419 	datap = skb->data;
420 
421 	memcpy(datap, &eth_hdr, sizeof(eth_hdr));
422 
423 	return 0;
424 }
425 
426 static int ath6kl_wmi_tx_complete_event_rx(u8 *datap, int len)
427 {
428 	struct tx_complete_msg_v1 *msg_v1;
429 	struct wmi_tx_complete_event *evt;
430 	int index;
431 	u16 size;
432 
433 	evt = (struct wmi_tx_complete_event *) datap;
434 
435 	ath6kl_dbg(ATH6KL_DBG_WMI, "comp: %d %d %d\n",
436 		   evt->num_msg, evt->msg_len, evt->msg_type);
437 
438 	for (index = 0; index < evt->num_msg; index++) {
439 		size = sizeof(struct wmi_tx_complete_event) +
440 		    (index * sizeof(struct tx_complete_msg_v1));
441 		msg_v1 = (struct tx_complete_msg_v1 *)(datap + size);
442 
443 		ath6kl_dbg(ATH6KL_DBG_WMI, "msg: %d %d %d %d\n",
444 			   msg_v1->status, msg_v1->pkt_id,
445 			   msg_v1->rate_idx, msg_v1->ack_failures);
446 	}
447 
448 	return 0;
449 }
450 
451 static int ath6kl_wmi_remain_on_chnl_event_rx(struct wmi *wmi, u8 *datap,
452 					      int len, struct ath6kl_vif *vif)
453 {
454 	struct wmi_remain_on_chnl_event *ev;
455 	u32 freq;
456 	u32 dur;
457 	struct ieee80211_channel *chan;
458 	struct ath6kl *ar = wmi->parent_dev;
459 	u32 id;
460 
461 	if (len < sizeof(*ev))
462 		return -EINVAL;
463 
464 	ev = (struct wmi_remain_on_chnl_event *) datap;
465 	freq = le32_to_cpu(ev->freq);
466 	dur = le32_to_cpu(ev->duration);
467 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl: freq=%u dur=%u\n",
468 		   freq, dur);
469 	chan = ieee80211_get_channel(ar->wiphy, freq);
470 	if (!chan) {
471 		ath6kl_dbg(ATH6KL_DBG_WMI,
472 			   "remain_on_chnl: Unknown channel (freq=%u)\n",
473 			   freq);
474 		return -EINVAL;
475 	}
476 	id = vif->last_roc_id;
477 	cfg80211_ready_on_channel(&vif->wdev, id, chan, NL80211_CHAN_NO_HT,
478 				  dur, GFP_ATOMIC);
479 
480 	return 0;
481 }
482 
483 static int ath6kl_wmi_cancel_remain_on_chnl_event_rx(struct wmi *wmi,
484 						     u8 *datap, int len,
485 						     struct ath6kl_vif *vif)
486 {
487 	struct wmi_cancel_remain_on_chnl_event *ev;
488 	u32 freq;
489 	u32 dur;
490 	struct ieee80211_channel *chan;
491 	struct ath6kl *ar = wmi->parent_dev;
492 	u32 id;
493 
494 	if (len < sizeof(*ev))
495 		return -EINVAL;
496 
497 	ev = (struct wmi_cancel_remain_on_chnl_event *) datap;
498 	freq = le32_to_cpu(ev->freq);
499 	dur = le32_to_cpu(ev->duration);
500 	ath6kl_dbg(ATH6KL_DBG_WMI,
501 		   "cancel_remain_on_chnl: freq=%u dur=%u status=%u\n",
502 		   freq, dur, ev->status);
503 	chan = ieee80211_get_channel(ar->wiphy, freq);
504 	if (!chan) {
505 		ath6kl_dbg(ATH6KL_DBG_WMI,
506 			   "cancel_remain_on_chnl: Unknown channel (freq=%u)\n",
507 			   freq);
508 		return -EINVAL;
509 	}
510 	if (vif->last_cancel_roc_id &&
511 	    vif->last_cancel_roc_id + 1 == vif->last_roc_id)
512 		id = vif->last_cancel_roc_id; /* event for cancel command */
513 	else
514 		id = vif->last_roc_id; /* timeout on uncanceled r-o-c */
515 	vif->last_cancel_roc_id = 0;
516 	cfg80211_remain_on_channel_expired(&vif->wdev, id, chan,
517 					   NL80211_CHAN_NO_HT, GFP_ATOMIC);
518 
519 	return 0;
520 }
521 
522 static int ath6kl_wmi_tx_status_event_rx(struct wmi *wmi, u8 *datap, int len,
523 					 struct ath6kl_vif *vif)
524 {
525 	struct wmi_tx_status_event *ev;
526 	u32 id;
527 
528 	if (len < sizeof(*ev))
529 		return -EINVAL;
530 
531 	ev = (struct wmi_tx_status_event *) datap;
532 	id = le32_to_cpu(ev->id);
533 	ath6kl_dbg(ATH6KL_DBG_WMI, "tx_status: id=%x ack_status=%u\n",
534 		   id, ev->ack_status);
535 	if (wmi->last_mgmt_tx_frame) {
536 		cfg80211_mgmt_tx_status(&vif->wdev, id,
537 					wmi->last_mgmt_tx_frame,
538 					wmi->last_mgmt_tx_frame_len,
539 					!!ev->ack_status, GFP_ATOMIC);
540 		kfree(wmi->last_mgmt_tx_frame);
541 		wmi->last_mgmt_tx_frame = NULL;
542 		wmi->last_mgmt_tx_frame_len = 0;
543 	}
544 
545 	return 0;
546 }
547 
548 static int ath6kl_wmi_rx_probe_req_event_rx(struct wmi *wmi, u8 *datap, int len,
549 					    struct ath6kl_vif *vif)
550 {
551 	struct wmi_p2p_rx_probe_req_event *ev;
552 	u32 freq;
553 	u16 dlen;
554 
555 	if (len < sizeof(*ev))
556 		return -EINVAL;
557 
558 	ev = (struct wmi_p2p_rx_probe_req_event *) datap;
559 	freq = le32_to_cpu(ev->freq);
560 	dlen = le16_to_cpu(ev->len);
561 	if (datap + len < ev->data + dlen) {
562 		ath6kl_err("invalid wmi_p2p_rx_probe_req_event: len=%d dlen=%u\n",
563 			   len, dlen);
564 		return -EINVAL;
565 	}
566 	ath6kl_dbg(ATH6KL_DBG_WMI,
567 		   "rx_probe_req: len=%u freq=%u probe_req_report=%d\n",
568 		   dlen, freq, vif->probe_req_report);
569 
570 	if (vif->probe_req_report || vif->nw_type == AP_NETWORK)
571 		cfg80211_rx_mgmt(&vif->wdev, freq, 0,
572 				 ev->data, dlen, GFP_ATOMIC);
573 
574 	return 0;
575 }
576 
577 static int ath6kl_wmi_p2p_capabilities_event_rx(u8 *datap, int len)
578 {
579 	struct wmi_p2p_capabilities_event *ev;
580 	u16 dlen;
581 
582 	if (len < sizeof(*ev))
583 		return -EINVAL;
584 
585 	ev = (struct wmi_p2p_capabilities_event *) datap;
586 	dlen = le16_to_cpu(ev->len);
587 	ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_capab: len=%u\n", dlen);
588 
589 	return 0;
590 }
591 
592 static int ath6kl_wmi_rx_action_event_rx(struct wmi *wmi, u8 *datap, int len,
593 					 struct ath6kl_vif *vif)
594 {
595 	struct wmi_rx_action_event *ev;
596 	u32 freq;
597 	u16 dlen;
598 
599 	if (len < sizeof(*ev))
600 		return -EINVAL;
601 
602 	ev = (struct wmi_rx_action_event *) datap;
603 	freq = le32_to_cpu(ev->freq);
604 	dlen = le16_to_cpu(ev->len);
605 	if (datap + len < ev->data + dlen) {
606 		ath6kl_err("invalid wmi_rx_action_event: len=%d dlen=%u\n",
607 			   len, dlen);
608 		return -EINVAL;
609 	}
610 	ath6kl_dbg(ATH6KL_DBG_WMI, "rx_action: len=%u freq=%u\n", dlen, freq);
611 	cfg80211_rx_mgmt(&vif->wdev, freq, 0,
612 			 ev->data, dlen, GFP_ATOMIC);
613 
614 	return 0;
615 }
616 
617 static int ath6kl_wmi_p2p_info_event_rx(u8 *datap, int len)
618 {
619 	struct wmi_p2p_info_event *ev;
620 	u32 flags;
621 	u16 dlen;
622 
623 	if (len < sizeof(*ev))
624 		return -EINVAL;
625 
626 	ev = (struct wmi_p2p_info_event *) datap;
627 	flags = le32_to_cpu(ev->info_req_flags);
628 	dlen = le16_to_cpu(ev->len);
629 	ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: flags=%x len=%d\n", flags, dlen);
630 
631 	if (flags & P2P_FLAG_CAPABILITIES_REQ) {
632 		struct wmi_p2p_capabilities *cap;
633 		if (dlen < sizeof(*cap))
634 			return -EINVAL;
635 		cap = (struct wmi_p2p_capabilities *) ev->data;
636 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: GO Power Save = %d\n",
637 			   cap->go_power_save);
638 	}
639 
640 	if (flags & P2P_FLAG_MACADDR_REQ) {
641 		struct wmi_p2p_macaddr *mac;
642 		if (dlen < sizeof(*mac))
643 			return -EINVAL;
644 		mac = (struct wmi_p2p_macaddr *) ev->data;
645 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: MAC Address = %pM\n",
646 			   mac->mac_addr);
647 	}
648 
649 	if (flags & P2P_FLAG_HMODEL_REQ) {
650 		struct wmi_p2p_hmodel *mod;
651 		if (dlen < sizeof(*mod))
652 			return -EINVAL;
653 		mod = (struct wmi_p2p_hmodel *) ev->data;
654 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: P2P Model = %d (%s)\n",
655 			   mod->p2p_model,
656 			   mod->p2p_model ? "host" : "firmware");
657 	}
658 	return 0;
659 }
660 
661 static inline struct sk_buff *ath6kl_wmi_get_new_buf(u32 size)
662 {
663 	struct sk_buff *skb;
664 
665 	skb = ath6kl_buf_alloc(size);
666 	if (!skb)
667 		return NULL;
668 
669 	skb_put(skb, size);
670 	if (size)
671 		memset(skb->data, 0, size);
672 
673 	return skb;
674 }
675 
676 /* Send a "simple" wmi command -- one with no arguments */
677 static int ath6kl_wmi_simple_cmd(struct wmi *wmi, u8 if_idx,
678 				 enum wmi_cmd_id cmd_id)
679 {
680 	struct sk_buff *skb;
681 	int ret;
682 
683 	skb = ath6kl_wmi_get_new_buf(0);
684 	if (!skb)
685 		return -ENOMEM;
686 
687 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, cmd_id, NO_SYNC_WMIFLAG);
688 
689 	return ret;
690 }
691 
692 static int ath6kl_wmi_ready_event_rx(struct wmi *wmi, u8 *datap, int len)
693 {
694 	struct wmi_ready_event_2 *ev = (struct wmi_ready_event_2 *) datap;
695 
696 	if (len < sizeof(struct wmi_ready_event_2))
697 		return -EINVAL;
698 
699 	ath6kl_ready_event(wmi->parent_dev, ev->mac_addr,
700 			   le32_to_cpu(ev->sw_version),
701 			   le32_to_cpu(ev->abi_version), ev->phy_cap);
702 
703 	return 0;
704 }
705 
706 /*
707  * Mechanism to modify the roaming behavior in the firmware. The lower rssi
708  * at which the station has to roam can be passed with
709  * WMI_SET_LRSSI_SCAN_PARAMS. Subtract 96 from RSSI to get the signal level
710  * in dBm.
711  */
712 int ath6kl_wmi_set_roam_lrssi_cmd(struct wmi *wmi, u8 lrssi)
713 {
714 	struct sk_buff *skb;
715 	struct roam_ctrl_cmd *cmd;
716 
717 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
718 	if (!skb)
719 		return -ENOMEM;
720 
721 	cmd = (struct roam_ctrl_cmd *) skb->data;
722 
723 	cmd->info.params.lrssi_scan_period = cpu_to_le16(DEF_LRSSI_SCAN_PERIOD);
724 	cmd->info.params.lrssi_scan_threshold = a_cpu_to_sle16(lrssi +
725 						       DEF_SCAN_FOR_ROAM_INTVL);
726 	cmd->info.params.lrssi_roam_threshold = a_cpu_to_sle16(lrssi);
727 	cmd->info.params.roam_rssi_floor = DEF_LRSSI_ROAM_FLOOR;
728 	cmd->roam_ctrl = WMI_SET_LRSSI_SCAN_PARAMS;
729 
730 	ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
731 			    NO_SYNC_WMIFLAG);
732 
733 	return 0;
734 }
735 
736 int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid)
737 {
738 	struct sk_buff *skb;
739 	struct roam_ctrl_cmd *cmd;
740 
741 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
742 	if (!skb)
743 		return -ENOMEM;
744 
745 	cmd = (struct roam_ctrl_cmd *) skb->data;
746 
747 	memcpy(cmd->info.bssid, bssid, ETH_ALEN);
748 	cmd->roam_ctrl = WMI_FORCE_ROAM;
749 
750 	ath6kl_dbg(ATH6KL_DBG_WMI, "force roam to %pM\n", bssid);
751 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
752 				   NO_SYNC_WMIFLAG);
753 }
754 
755 int ath6kl_wmi_ap_set_dtim_cmd(struct wmi *wmi, u8 if_idx, u32 dtim_period)
756 {
757 	struct sk_buff *skb;
758 	struct set_dtim_cmd *cmd;
759 
760 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
761 	if (!skb)
762 		return -ENOMEM;
763 
764 	cmd = (struct set_dtim_cmd *) skb->data;
765 
766 	cmd->dtim_period = cpu_to_le32(dtim_period);
767 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
768 				   WMI_AP_SET_DTIM_CMDID, NO_SYNC_WMIFLAG);
769 }
770 
771 int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode)
772 {
773 	struct sk_buff *skb;
774 	struct roam_ctrl_cmd *cmd;
775 
776 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
777 	if (!skb)
778 		return -ENOMEM;
779 
780 	cmd = (struct roam_ctrl_cmd *) skb->data;
781 
782 	cmd->info.roam_mode = mode;
783 	cmd->roam_ctrl = WMI_SET_ROAM_MODE;
784 
785 	ath6kl_dbg(ATH6KL_DBG_WMI, "set roam mode %d\n", mode);
786 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
787 				   NO_SYNC_WMIFLAG);
788 }
789 
790 static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len,
791 				       struct ath6kl_vif *vif)
792 {
793 	struct wmi_connect_event *ev;
794 	u8 *pie, *peie;
795 
796 	if (len < sizeof(struct wmi_connect_event))
797 		return -EINVAL;
798 
799 	ev = (struct wmi_connect_event *) datap;
800 
801 	if (vif->nw_type == AP_NETWORK) {
802 		/* AP mode start/STA connected event */
803 		struct net_device *dev = vif->ndev;
804 		if (memcmp(dev->dev_addr, ev->u.ap_bss.bssid, ETH_ALEN) == 0) {
805 			ath6kl_dbg(ATH6KL_DBG_WMI,
806 				   "%s: freq %d bssid %pM (AP started)\n",
807 				   __func__, le16_to_cpu(ev->u.ap_bss.ch),
808 				   ev->u.ap_bss.bssid);
809 			ath6kl_connect_ap_mode_bss(
810 				vif, le16_to_cpu(ev->u.ap_bss.ch));
811 		} else {
812 			ath6kl_dbg(ATH6KL_DBG_WMI,
813 				   "%s: aid %u mac_addr %pM auth=%u keymgmt=%u cipher=%u apsd_info=%u (STA connected)\n",
814 				   __func__, ev->u.ap_sta.aid,
815 				   ev->u.ap_sta.mac_addr,
816 				   ev->u.ap_sta.auth,
817 				   ev->u.ap_sta.keymgmt,
818 				   le16_to_cpu(ev->u.ap_sta.cipher),
819 				   ev->u.ap_sta.apsd_info);
820 
821 			ath6kl_connect_ap_mode_sta(
822 				vif, ev->u.ap_sta.aid, ev->u.ap_sta.mac_addr,
823 				ev->u.ap_sta.keymgmt,
824 				le16_to_cpu(ev->u.ap_sta.cipher),
825 				ev->u.ap_sta.auth, ev->assoc_req_len,
826 				ev->assoc_info + ev->beacon_ie_len,
827 				ev->u.ap_sta.apsd_info);
828 		}
829 		return 0;
830 	}
831 
832 	/* STA/IBSS mode connection event */
833 
834 	ath6kl_dbg(ATH6KL_DBG_WMI,
835 		   "wmi event connect freq %d bssid %pM listen_intvl %d beacon_intvl %d type %d\n",
836 		   le16_to_cpu(ev->u.sta.ch), ev->u.sta.bssid,
837 		   le16_to_cpu(ev->u.sta.listen_intvl),
838 		   le16_to_cpu(ev->u.sta.beacon_intvl),
839 		   le32_to_cpu(ev->u.sta.nw_type));
840 
841 	/* Start of assoc rsp IEs */
842 	pie = ev->assoc_info + ev->beacon_ie_len +
843 	      ev->assoc_req_len + (sizeof(u16) * 3); /* capinfo, status, aid */
844 
845 	/* End of assoc rsp IEs */
846 	peie = ev->assoc_info + ev->beacon_ie_len + ev->assoc_req_len +
847 	    ev->assoc_resp_len;
848 
849 	while (pie < peie) {
850 		switch (*pie) {
851 		case WLAN_EID_VENDOR_SPECIFIC:
852 			if (pie[1] > 3 && pie[2] == 0x00 && pie[3] == 0x50 &&
853 			    pie[4] == 0xf2 && pie[5] == WMM_OUI_TYPE) {
854 				/* WMM OUT (00:50:F2) */
855 				if (pie[1] > 5 &&
856 				    pie[6] == WMM_PARAM_OUI_SUBTYPE)
857 					wmi->is_wmm_enabled = true;
858 			}
859 			break;
860 		}
861 
862 		if (wmi->is_wmm_enabled)
863 			break;
864 
865 		pie += pie[1] + 2;
866 	}
867 
868 	ath6kl_connect_event(vif, le16_to_cpu(ev->u.sta.ch),
869 			     ev->u.sta.bssid,
870 			     le16_to_cpu(ev->u.sta.listen_intvl),
871 			     le16_to_cpu(ev->u.sta.beacon_intvl),
872 			     le32_to_cpu(ev->u.sta.nw_type),
873 			     ev->beacon_ie_len, ev->assoc_req_len,
874 			     ev->assoc_resp_len, ev->assoc_info);
875 
876 	return 0;
877 }
878 
879 static struct country_code_to_enum_rd *
880 ath6kl_regd_find_country(u16 countryCode)
881 {
882 	int i;
883 
884 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
885 		if (allCountries[i].countryCode == countryCode)
886 			return &allCountries[i];
887 	}
888 
889 	return NULL;
890 }
891 
892 static struct reg_dmn_pair_mapping *
893 ath6kl_get_regpair(u16 regdmn)
894 {
895 	int i;
896 
897 	if (regdmn == NO_ENUMRD)
898 		return NULL;
899 
900 	for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) {
901 		if (regDomainPairs[i].regDmnEnum == regdmn)
902 			return &regDomainPairs[i];
903 	}
904 
905 	return NULL;
906 }
907 
908 static struct country_code_to_enum_rd *
909 ath6kl_regd_find_country_by_rd(u16 regdmn)
910 {
911 	int i;
912 
913 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
914 		if (allCountries[i].regDmnEnum == regdmn)
915 			return &allCountries[i];
916 	}
917 
918 	return NULL;
919 }
920 
921 static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len)
922 {
923 
924 	struct ath6kl_wmi_regdomain *ev;
925 	struct country_code_to_enum_rd *country = NULL;
926 	struct reg_dmn_pair_mapping *regpair = NULL;
927 	char alpha2[2];
928 	u32 reg_code;
929 
930 	ev = (struct ath6kl_wmi_regdomain *) datap;
931 	reg_code = le32_to_cpu(ev->reg_code);
932 
933 	if ((reg_code >> ATH6KL_COUNTRY_RD_SHIFT) & COUNTRY_ERD_FLAG)
934 		country = ath6kl_regd_find_country((u16) reg_code);
935 	else if (!(((u16) reg_code & WORLD_SKU_MASK) == WORLD_SKU_PREFIX)) {
936 
937 		regpair = ath6kl_get_regpair((u16) reg_code);
938 		country = ath6kl_regd_find_country_by_rd((u16) reg_code);
939 		ath6kl_dbg(ATH6KL_DBG_WMI, "Regpair used: 0x%0x\n",
940 			   regpair->regDmnEnum);
941 	}
942 
943 	if (country && wmi->parent_dev->wiphy_registered) {
944 		alpha2[0] = country->isoName[0];
945 		alpha2[1] = country->isoName[1];
946 
947 		regulatory_hint(wmi->parent_dev->wiphy, alpha2);
948 
949 		ath6kl_dbg(ATH6KL_DBG_WMI, "Country alpha2 being used: %c%c\n",
950 			   alpha2[0], alpha2[1]);
951 	}
952 }
953 
954 static int ath6kl_wmi_disconnect_event_rx(struct wmi *wmi, u8 *datap, int len,
955 					  struct ath6kl_vif *vif)
956 {
957 	struct wmi_disconnect_event *ev;
958 	wmi->traffic_class = 100;
959 
960 	if (len < sizeof(struct wmi_disconnect_event))
961 		return -EINVAL;
962 
963 	ev = (struct wmi_disconnect_event *) datap;
964 
965 	ath6kl_dbg(ATH6KL_DBG_WMI,
966 		   "wmi event disconnect proto_reason %d bssid %pM wmi_reason %d assoc_resp_len %d\n",
967 		   le16_to_cpu(ev->proto_reason_status), ev->bssid,
968 		   ev->disconn_reason, ev->assoc_resp_len);
969 
970 	wmi->is_wmm_enabled = false;
971 
972 	ath6kl_disconnect_event(vif, ev->disconn_reason,
973 				ev->bssid, ev->assoc_resp_len, ev->assoc_info,
974 				le16_to_cpu(ev->proto_reason_status));
975 
976 	return 0;
977 }
978 
979 static int ath6kl_wmi_peer_node_event_rx(struct wmi *wmi, u8 *datap, int len)
980 {
981 	struct wmi_peer_node_event *ev;
982 
983 	if (len < sizeof(struct wmi_peer_node_event))
984 		return -EINVAL;
985 
986 	ev = (struct wmi_peer_node_event *) datap;
987 
988 	if (ev->event_code == PEER_NODE_JOIN_EVENT)
989 		ath6kl_dbg(ATH6KL_DBG_WMI, "joined node with mac addr: %pM\n",
990 			   ev->peer_mac_addr);
991 	else if (ev->event_code == PEER_NODE_LEAVE_EVENT)
992 		ath6kl_dbg(ATH6KL_DBG_WMI, "left node with mac addr: %pM\n",
993 			   ev->peer_mac_addr);
994 
995 	return 0;
996 }
997 
998 static int ath6kl_wmi_tkip_micerr_event_rx(struct wmi *wmi, u8 *datap, int len,
999 					   struct ath6kl_vif *vif)
1000 {
1001 	struct wmi_tkip_micerr_event *ev;
1002 
1003 	if (len < sizeof(struct wmi_tkip_micerr_event))
1004 		return -EINVAL;
1005 
1006 	ev = (struct wmi_tkip_micerr_event *) datap;
1007 
1008 	ath6kl_tkip_micerr_event(vif, ev->key_id, ev->is_mcast);
1009 
1010 	return 0;
1011 }
1012 
1013 void ath6kl_wmi_sscan_timer(unsigned long ptr)
1014 {
1015 	struct ath6kl_vif *vif = (struct ath6kl_vif *) ptr;
1016 
1017 	cfg80211_sched_scan_results(vif->ar->wiphy);
1018 }
1019 
1020 static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len,
1021 				       struct ath6kl_vif *vif)
1022 {
1023 	struct wmi_bss_info_hdr2 *bih;
1024 	u8 *buf;
1025 	struct ieee80211_channel *channel;
1026 	struct ath6kl *ar = wmi->parent_dev;
1027 	struct ieee80211_mgmt *mgmt;
1028 	struct cfg80211_bss *bss;
1029 
1030 	if (len <= sizeof(struct wmi_bss_info_hdr2))
1031 		return -EINVAL;
1032 
1033 	bih = (struct wmi_bss_info_hdr2 *) datap;
1034 	buf = datap + sizeof(struct wmi_bss_info_hdr2);
1035 	len -= sizeof(struct wmi_bss_info_hdr2);
1036 
1037 	ath6kl_dbg(ATH6KL_DBG_WMI,
1038 		   "bss info evt - ch %u, snr %d, rssi %d, bssid \"%pM\" "
1039 		   "frame_type=%d\n",
1040 		   bih->ch, bih->snr, bih->snr - 95, bih->bssid,
1041 		   bih->frame_type);
1042 
1043 	if (bih->frame_type != BEACON_FTYPE &&
1044 	    bih->frame_type != PROBERESP_FTYPE)
1045 		return 0; /* Only update BSS table for now */
1046 
1047 	if (bih->frame_type == BEACON_FTYPE &&
1048 	    test_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags)) {
1049 		clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
1050 		ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1051 					 NONE_BSS_FILTER, 0);
1052 	}
1053 
1054 	channel = ieee80211_get_channel(ar->wiphy, le16_to_cpu(bih->ch));
1055 	if (channel == NULL)
1056 		return -EINVAL;
1057 
1058 	if (len < 8 + 2 + 2)
1059 		return -EINVAL;
1060 
1061 	if (bih->frame_type == BEACON_FTYPE &&
1062 	    test_bit(CONNECTED, &vif->flags) &&
1063 	    memcmp(bih->bssid, vif->bssid, ETH_ALEN) == 0) {
1064 		const u8 *tim;
1065 		tim = cfg80211_find_ie(WLAN_EID_TIM, buf + 8 + 2 + 2,
1066 				       len - 8 - 2 - 2);
1067 		if (tim && tim[1] >= 2) {
1068 			vif->assoc_bss_dtim_period = tim[3];
1069 			set_bit(DTIM_PERIOD_AVAIL, &vif->flags);
1070 		}
1071 	}
1072 
1073 	/*
1074 	 * In theory, use of cfg80211_inform_bss() would be more natural here
1075 	 * since we do not have the full frame. However, at least for now,
1076 	 * cfg80211 can only distinguish Beacon and Probe Response frames from
1077 	 * each other when using cfg80211_inform_bss_frame(), so let's build a
1078 	 * fake IEEE 802.11 header to be able to take benefit of this.
1079 	 */
1080 	mgmt = kmalloc(24 + len, GFP_ATOMIC);
1081 	if (mgmt == NULL)
1082 		return -EINVAL;
1083 
1084 	if (bih->frame_type == BEACON_FTYPE) {
1085 		mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1086 						  IEEE80211_STYPE_BEACON);
1087 		memset(mgmt->da, 0xff, ETH_ALEN);
1088 	} else {
1089 		struct net_device *dev = vif->ndev;
1090 
1091 		mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1092 						  IEEE80211_STYPE_PROBE_RESP);
1093 		memcpy(mgmt->da, dev->dev_addr, ETH_ALEN);
1094 	}
1095 	mgmt->duration = cpu_to_le16(0);
1096 	memcpy(mgmt->sa, bih->bssid, ETH_ALEN);
1097 	memcpy(mgmt->bssid, bih->bssid, ETH_ALEN);
1098 	mgmt->seq_ctrl = cpu_to_le16(0);
1099 
1100 	memcpy(&mgmt->u.beacon, buf, len);
1101 
1102 	bss = cfg80211_inform_bss_frame(ar->wiphy, channel, mgmt,
1103 					24 + len, (bih->snr - 95) * 100,
1104 					GFP_ATOMIC);
1105 	kfree(mgmt);
1106 	if (bss == NULL)
1107 		return -ENOMEM;
1108 	cfg80211_put_bss(bss);
1109 
1110 	/*
1111 	 * Firmware doesn't return any event when scheduled scan has
1112 	 * finished, so we need to use a timer to find out when there are
1113 	 * no more results.
1114 	 *
1115 	 * The timer is started from the first bss info received, otherwise
1116 	 * the timer would not ever fire if the scan interval is short
1117 	 * enough.
1118 	 */
1119 	if (test_bit(SCHED_SCANNING, &vif->flags) &&
1120 	    !timer_pending(&vif->sched_scan_timer)) {
1121 		mod_timer(&vif->sched_scan_timer, jiffies +
1122 			  msecs_to_jiffies(ATH6KL_SCHED_SCAN_RESULT_DELAY));
1123 	}
1124 
1125 	return 0;
1126 }
1127 
1128 /* Inactivity timeout of a fatpipe(pstream) at the target */
1129 static int ath6kl_wmi_pstream_timeout_event_rx(struct wmi *wmi, u8 *datap,
1130 					       int len)
1131 {
1132 	struct wmi_pstream_timeout_event *ev;
1133 
1134 	if (len < sizeof(struct wmi_pstream_timeout_event))
1135 		return -EINVAL;
1136 
1137 	ev = (struct wmi_pstream_timeout_event *) datap;
1138 
1139 	/*
1140 	 * When the pstream (fat pipe == AC) timesout, it means there were
1141 	 * no thinStreams within this pstream & it got implicitly created
1142 	 * due to data flow on this AC. We start the inactivity timer only
1143 	 * for implicitly created pstream. Just reset the host state.
1144 	 */
1145 	spin_lock_bh(&wmi->lock);
1146 	wmi->stream_exist_for_ac[ev->traffic_class] = 0;
1147 	wmi->fat_pipe_exist &= ~(1 << ev->traffic_class);
1148 	spin_unlock_bh(&wmi->lock);
1149 
1150 	/* Indicate inactivity to driver layer for this fatpipe (pstream) */
1151 	ath6kl_indicate_tx_activity(wmi->parent_dev, ev->traffic_class, false);
1152 
1153 	return 0;
1154 }
1155 
1156 static int ath6kl_wmi_bitrate_reply_rx(struct wmi *wmi, u8 *datap, int len)
1157 {
1158 	struct wmi_bit_rate_reply *reply;
1159 	s32 rate;
1160 	u32 sgi, index;
1161 
1162 	if (len < sizeof(struct wmi_bit_rate_reply))
1163 		return -EINVAL;
1164 
1165 	reply = (struct wmi_bit_rate_reply *) datap;
1166 
1167 	ath6kl_dbg(ATH6KL_DBG_WMI, "rateindex %d\n", reply->rate_index);
1168 
1169 	if (reply->rate_index == (s8) RATE_AUTO) {
1170 		rate = RATE_AUTO;
1171 	} else {
1172 		index = reply->rate_index & 0x7f;
1173 		sgi = (reply->rate_index & 0x80) ? 1 : 0;
1174 		rate = wmi_rate_tbl[index][sgi];
1175 	}
1176 
1177 	ath6kl_wakeup_event(wmi->parent_dev);
1178 
1179 	return 0;
1180 }
1181 
1182 static int ath6kl_wmi_test_rx(struct wmi *wmi, u8 *datap, int len)
1183 {
1184 	ath6kl_tm_rx_event(wmi->parent_dev, datap, len);
1185 
1186 	return 0;
1187 }
1188 
1189 static int ath6kl_wmi_ratemask_reply_rx(struct wmi *wmi, u8 *datap, int len)
1190 {
1191 	if (len < sizeof(struct wmi_fix_rates_reply))
1192 		return -EINVAL;
1193 
1194 	ath6kl_wakeup_event(wmi->parent_dev);
1195 
1196 	return 0;
1197 }
1198 
1199 static int ath6kl_wmi_ch_list_reply_rx(struct wmi *wmi, u8 *datap, int len)
1200 {
1201 	if (len < sizeof(struct wmi_channel_list_reply))
1202 		return -EINVAL;
1203 
1204 	ath6kl_wakeup_event(wmi->parent_dev);
1205 
1206 	return 0;
1207 }
1208 
1209 static int ath6kl_wmi_tx_pwr_reply_rx(struct wmi *wmi, u8 *datap, int len)
1210 {
1211 	struct wmi_tx_pwr_reply *reply;
1212 
1213 	if (len < sizeof(struct wmi_tx_pwr_reply))
1214 		return -EINVAL;
1215 
1216 	reply = (struct wmi_tx_pwr_reply *) datap;
1217 	ath6kl_txpwr_rx_evt(wmi->parent_dev, reply->dbM);
1218 
1219 	return 0;
1220 }
1221 
1222 static int ath6kl_wmi_keepalive_reply_rx(struct wmi *wmi, u8 *datap, int len)
1223 {
1224 	if (len < sizeof(struct wmi_get_keepalive_cmd))
1225 		return -EINVAL;
1226 
1227 	ath6kl_wakeup_event(wmi->parent_dev);
1228 
1229 	return 0;
1230 }
1231 
1232 static int ath6kl_wmi_scan_complete_rx(struct wmi *wmi, u8 *datap, int len,
1233 				       struct ath6kl_vif *vif)
1234 {
1235 	struct wmi_scan_complete_event *ev;
1236 
1237 	ev = (struct wmi_scan_complete_event *) datap;
1238 
1239 	ath6kl_scan_complete_evt(vif, a_sle32_to_cpu(ev->status));
1240 	wmi->is_probe_ssid = false;
1241 
1242 	return 0;
1243 }
1244 
1245 static int ath6kl_wmi_neighbor_report_event_rx(struct wmi *wmi, u8 *datap,
1246 					       int len, struct ath6kl_vif *vif)
1247 {
1248 	struct wmi_neighbor_report_event *ev;
1249 	u8 i;
1250 
1251 	if (len < sizeof(*ev))
1252 		return -EINVAL;
1253 	ev = (struct wmi_neighbor_report_event *) datap;
1254 	if (sizeof(*ev) + ev->num_neighbors * sizeof(struct wmi_neighbor_info)
1255 	    > len) {
1256 		ath6kl_dbg(ATH6KL_DBG_WMI,
1257 			   "truncated neighbor event (num=%d len=%d)\n",
1258 			   ev->num_neighbors, len);
1259 		return -EINVAL;
1260 	}
1261 	for (i = 0; i < ev->num_neighbors; i++) {
1262 		ath6kl_dbg(ATH6KL_DBG_WMI, "neighbor %d/%d - %pM 0x%x\n",
1263 			   i + 1, ev->num_neighbors, ev->neighbor[i].bssid,
1264 			   ev->neighbor[i].bss_flags);
1265 		cfg80211_pmksa_candidate_notify(vif->ndev, i,
1266 						ev->neighbor[i].bssid,
1267 						!!(ev->neighbor[i].bss_flags &
1268 						   WMI_PREAUTH_CAPABLE_BSS),
1269 						GFP_ATOMIC);
1270 	}
1271 
1272 	return 0;
1273 }
1274 
1275 /*
1276  * Target is reporting a programming error.  This is for
1277  * developer aid only.  Target only checks a few common violations
1278  * and it is responsibility of host to do all error checking.
1279  * Behavior of target after wmi error event is undefined.
1280  * A reset is recommended.
1281  */
1282 static int ath6kl_wmi_error_event_rx(struct wmi *wmi, u8 *datap, int len)
1283 {
1284 	const char *type = "unknown error";
1285 	struct wmi_cmd_error_event *ev;
1286 	ev = (struct wmi_cmd_error_event *) datap;
1287 
1288 	switch (ev->err_code) {
1289 	case INVALID_PARAM:
1290 		type = "invalid parameter";
1291 		break;
1292 	case ILLEGAL_STATE:
1293 		type = "invalid state";
1294 		break;
1295 	case INTERNAL_ERROR:
1296 		type = "internal error";
1297 		break;
1298 	}
1299 
1300 	ath6kl_dbg(ATH6KL_DBG_WMI, "programming error, cmd=%d %s\n",
1301 		   ev->cmd_id, type);
1302 
1303 	return 0;
1304 }
1305 
1306 static int ath6kl_wmi_stats_event_rx(struct wmi *wmi, u8 *datap, int len,
1307 				     struct ath6kl_vif *vif)
1308 {
1309 	ath6kl_tgt_stats_event(vif, datap, len);
1310 
1311 	return 0;
1312 }
1313 
1314 static u8 ath6kl_wmi_get_upper_threshold(s16 rssi,
1315 					 struct sq_threshold_params *sq_thresh,
1316 					 u32 size)
1317 {
1318 	u32 index;
1319 	u8 threshold = (u8) sq_thresh->upper_threshold[size - 1];
1320 
1321 	/* The list is already in sorted order. Get the next lower value */
1322 	for (index = 0; index < size; index++) {
1323 		if (rssi < sq_thresh->upper_threshold[index]) {
1324 			threshold = (u8) sq_thresh->upper_threshold[index];
1325 			break;
1326 		}
1327 	}
1328 
1329 	return threshold;
1330 }
1331 
1332 static u8 ath6kl_wmi_get_lower_threshold(s16 rssi,
1333 					 struct sq_threshold_params *sq_thresh,
1334 					 u32 size)
1335 {
1336 	u32 index;
1337 	u8 threshold = (u8) sq_thresh->lower_threshold[size - 1];
1338 
1339 	/* The list is already in sorted order. Get the next lower value */
1340 	for (index = 0; index < size; index++) {
1341 		if (rssi > sq_thresh->lower_threshold[index]) {
1342 			threshold = (u8) sq_thresh->lower_threshold[index];
1343 			break;
1344 		}
1345 	}
1346 
1347 	return threshold;
1348 }
1349 
1350 static int ath6kl_wmi_send_rssi_threshold_params(struct wmi *wmi,
1351 			struct wmi_rssi_threshold_params_cmd *rssi_cmd)
1352 {
1353 	struct sk_buff *skb;
1354 	struct wmi_rssi_threshold_params_cmd *cmd;
1355 
1356 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1357 	if (!skb)
1358 		return -ENOMEM;
1359 
1360 	cmd = (struct wmi_rssi_threshold_params_cmd *) skb->data;
1361 	memcpy(cmd, rssi_cmd, sizeof(struct wmi_rssi_threshold_params_cmd));
1362 
1363 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_RSSI_THRESHOLD_PARAMS_CMDID,
1364 				   NO_SYNC_WMIFLAG);
1365 }
1366 
1367 static int ath6kl_wmi_rssi_threshold_event_rx(struct wmi *wmi, u8 *datap,
1368 					      int len)
1369 {
1370 	struct wmi_rssi_threshold_event *reply;
1371 	struct wmi_rssi_threshold_params_cmd cmd;
1372 	struct sq_threshold_params *sq_thresh;
1373 	enum wmi_rssi_threshold_val new_threshold;
1374 	u8 upper_rssi_threshold, lower_rssi_threshold;
1375 	s16 rssi;
1376 	int ret;
1377 
1378 	if (len < sizeof(struct wmi_rssi_threshold_event))
1379 		return -EINVAL;
1380 
1381 	reply = (struct wmi_rssi_threshold_event *) datap;
1382 	new_threshold = (enum wmi_rssi_threshold_val) reply->range;
1383 	rssi = a_sle16_to_cpu(reply->rssi);
1384 
1385 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_RSSI];
1386 
1387 	/*
1388 	 * Identify the threshold breached and communicate that to the app.
1389 	 * After that install a new set of thresholds based on the signal
1390 	 * quality reported by the target
1391 	 */
1392 	if (new_threshold) {
1393 		/* Upper threshold breached */
1394 		if (rssi < sq_thresh->upper_threshold[0]) {
1395 			ath6kl_dbg(ATH6KL_DBG_WMI,
1396 				   "spurious upper rssi threshold event: %d\n",
1397 				   rssi);
1398 		} else if ((rssi < sq_thresh->upper_threshold[1]) &&
1399 			   (rssi >= sq_thresh->upper_threshold[0])) {
1400 			new_threshold = WMI_RSSI_THRESHOLD1_ABOVE;
1401 		} else if ((rssi < sq_thresh->upper_threshold[2]) &&
1402 			   (rssi >= sq_thresh->upper_threshold[1])) {
1403 			new_threshold = WMI_RSSI_THRESHOLD2_ABOVE;
1404 		} else if ((rssi < sq_thresh->upper_threshold[3]) &&
1405 			   (rssi >= sq_thresh->upper_threshold[2])) {
1406 			new_threshold = WMI_RSSI_THRESHOLD3_ABOVE;
1407 		} else if ((rssi < sq_thresh->upper_threshold[4]) &&
1408 			   (rssi >= sq_thresh->upper_threshold[3])) {
1409 			new_threshold = WMI_RSSI_THRESHOLD4_ABOVE;
1410 		} else if ((rssi < sq_thresh->upper_threshold[5]) &&
1411 			   (rssi >= sq_thresh->upper_threshold[4])) {
1412 			new_threshold = WMI_RSSI_THRESHOLD5_ABOVE;
1413 		} else if (rssi >= sq_thresh->upper_threshold[5]) {
1414 			new_threshold = WMI_RSSI_THRESHOLD6_ABOVE;
1415 		}
1416 	} else {
1417 		/* Lower threshold breached */
1418 		if (rssi > sq_thresh->lower_threshold[0]) {
1419 			ath6kl_dbg(ATH6KL_DBG_WMI,
1420 				   "spurious lower rssi threshold event: %d %d\n",
1421 				rssi, sq_thresh->lower_threshold[0]);
1422 		} else if ((rssi > sq_thresh->lower_threshold[1]) &&
1423 			   (rssi <= sq_thresh->lower_threshold[0])) {
1424 			new_threshold = WMI_RSSI_THRESHOLD6_BELOW;
1425 		} else if ((rssi > sq_thresh->lower_threshold[2]) &&
1426 			   (rssi <= sq_thresh->lower_threshold[1])) {
1427 			new_threshold = WMI_RSSI_THRESHOLD5_BELOW;
1428 		} else if ((rssi > sq_thresh->lower_threshold[3]) &&
1429 			   (rssi <= sq_thresh->lower_threshold[2])) {
1430 			new_threshold = WMI_RSSI_THRESHOLD4_BELOW;
1431 		} else if ((rssi > sq_thresh->lower_threshold[4]) &&
1432 			   (rssi <= sq_thresh->lower_threshold[3])) {
1433 			new_threshold = WMI_RSSI_THRESHOLD3_BELOW;
1434 		} else if ((rssi > sq_thresh->lower_threshold[5]) &&
1435 			   (rssi <= sq_thresh->lower_threshold[4])) {
1436 			new_threshold = WMI_RSSI_THRESHOLD2_BELOW;
1437 		} else if (rssi <= sq_thresh->lower_threshold[5]) {
1438 			new_threshold = WMI_RSSI_THRESHOLD1_BELOW;
1439 		}
1440 	}
1441 
1442 	/* Calculate and install the next set of thresholds */
1443 	lower_rssi_threshold = ath6kl_wmi_get_lower_threshold(rssi, sq_thresh,
1444 				       sq_thresh->lower_threshold_valid_count);
1445 	upper_rssi_threshold = ath6kl_wmi_get_upper_threshold(rssi, sq_thresh,
1446 				       sq_thresh->upper_threshold_valid_count);
1447 
1448 	/* Issue a wmi command to install the thresholds */
1449 	cmd.thresh_above1_val = a_cpu_to_sle16(upper_rssi_threshold);
1450 	cmd.thresh_below1_val = a_cpu_to_sle16(lower_rssi_threshold);
1451 	cmd.weight = sq_thresh->weight;
1452 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1453 
1454 	ret = ath6kl_wmi_send_rssi_threshold_params(wmi, &cmd);
1455 	if (ret) {
1456 		ath6kl_err("unable to configure rssi thresholds\n");
1457 		return -EIO;
1458 	}
1459 
1460 	return 0;
1461 }
1462 
1463 static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len,
1464 				   struct ath6kl_vif *vif)
1465 {
1466 	struct wmi_cac_event *reply;
1467 	struct ieee80211_tspec_ie *ts;
1468 	u16 active_tsids, tsinfo;
1469 	u8 tsid, index;
1470 	u8 ts_id;
1471 
1472 	if (len < sizeof(struct wmi_cac_event))
1473 		return -EINVAL;
1474 
1475 	reply = (struct wmi_cac_event *) datap;
1476 
1477 	if ((reply->cac_indication == CAC_INDICATION_ADMISSION_RESP) &&
1478 	    (reply->status_code != IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED)) {
1479 
1480 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1481 		tsinfo = le16_to_cpu(ts->tsinfo);
1482 		tsid = (tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1483 			IEEE80211_WMM_IE_TSPEC_TID_MASK;
1484 
1485 		ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1486 					      reply->ac, tsid);
1487 	} else if (reply->cac_indication == CAC_INDICATION_NO_RESP) {
1488 		/*
1489 		 * Following assumes that there is only one outstanding
1490 		 * ADDTS request when this event is received
1491 		 */
1492 		spin_lock_bh(&wmi->lock);
1493 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1494 		spin_unlock_bh(&wmi->lock);
1495 
1496 		for (index = 0; index < sizeof(active_tsids) * 8; index++) {
1497 			if ((active_tsids >> index) & 1)
1498 				break;
1499 		}
1500 		if (index < (sizeof(active_tsids) * 8))
1501 			ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1502 						      reply->ac, index);
1503 	}
1504 
1505 	/*
1506 	 * Clear active tsids and Add missing handling
1507 	 * for delete qos stream from AP
1508 	 */
1509 	else if (reply->cac_indication == CAC_INDICATION_DELETE) {
1510 
1511 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1512 		tsinfo = le16_to_cpu(ts->tsinfo);
1513 		ts_id = ((tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1514 			 IEEE80211_WMM_IE_TSPEC_TID_MASK);
1515 
1516 		spin_lock_bh(&wmi->lock);
1517 		wmi->stream_exist_for_ac[reply->ac] &= ~(1 << ts_id);
1518 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1519 		spin_unlock_bh(&wmi->lock);
1520 
1521 		/* Indicate stream inactivity to driver layer only if all tsids
1522 		 * within this AC are deleted.
1523 		 */
1524 		if (!active_tsids) {
1525 			ath6kl_indicate_tx_activity(wmi->parent_dev, reply->ac,
1526 						    false);
1527 			wmi->fat_pipe_exist &= ~(1 << reply->ac);
1528 		}
1529 	}
1530 
1531 	return 0;
1532 }
1533 
1534 static int ath6kl_wmi_txe_notify_event_rx(struct wmi *wmi, u8 *datap, int len,
1535 					  struct ath6kl_vif *vif)
1536 {
1537 	struct wmi_txe_notify_event *ev;
1538 	u32 rate, pkts;
1539 
1540 	if (len < sizeof(*ev))
1541 		return -EINVAL;
1542 
1543 	if (vif->sme_state != SME_CONNECTED)
1544 		return -ENOTCONN;
1545 
1546 	ev = (struct wmi_txe_notify_event *) datap;
1547 	rate = le32_to_cpu(ev->rate);
1548 	pkts = le32_to_cpu(ev->pkts);
1549 
1550 	ath6kl_dbg(ATH6KL_DBG_WMI, "TXE notify event: peer %pM rate %d% pkts %d intvl %ds\n",
1551 		   vif->bssid, rate, pkts, vif->txe_intvl);
1552 
1553 	cfg80211_cqm_txe_notify(vif->ndev, vif->bssid, pkts,
1554 				rate, vif->txe_intvl, GFP_KERNEL);
1555 
1556 	return 0;
1557 }
1558 
1559 int ath6kl_wmi_set_txe_notify(struct wmi *wmi, u8 idx,
1560 			      u32 rate, u32 pkts, u32 intvl)
1561 {
1562 	struct sk_buff *skb;
1563 	struct wmi_txe_notify_cmd *cmd;
1564 
1565 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1566 	if (!skb)
1567 		return -ENOMEM;
1568 
1569 	cmd = (struct wmi_txe_notify_cmd *) skb->data;
1570 	cmd->rate = cpu_to_le32(rate);
1571 	cmd->pkts = cpu_to_le32(pkts);
1572 	cmd->intvl = cpu_to_le32(intvl);
1573 
1574 	return ath6kl_wmi_cmd_send(wmi, idx, skb, WMI_SET_TXE_NOTIFY_CMDID,
1575 				   NO_SYNC_WMIFLAG);
1576 }
1577 
1578 int ath6kl_wmi_set_rssi_filter_cmd(struct wmi *wmi, u8 if_idx, s8 rssi)
1579 {
1580 	struct sk_buff *skb;
1581 	struct wmi_set_rssi_filter_cmd *cmd;
1582 	int ret;
1583 
1584 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1585 	if (!skb)
1586 		return -ENOMEM;
1587 
1588 	cmd = (struct wmi_set_rssi_filter_cmd *) skb->data;
1589 	cmd->rssi = rssi;
1590 
1591 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_RSSI_FILTER_CMDID,
1592 				  NO_SYNC_WMIFLAG);
1593 	return ret;
1594 }
1595 
1596 static int ath6kl_wmi_send_snr_threshold_params(struct wmi *wmi,
1597 			struct wmi_snr_threshold_params_cmd *snr_cmd)
1598 {
1599 	struct sk_buff *skb;
1600 	struct wmi_snr_threshold_params_cmd *cmd;
1601 
1602 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1603 	if (!skb)
1604 		return -ENOMEM;
1605 
1606 	cmd = (struct wmi_snr_threshold_params_cmd *) skb->data;
1607 	memcpy(cmd, snr_cmd, sizeof(struct wmi_snr_threshold_params_cmd));
1608 
1609 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SNR_THRESHOLD_PARAMS_CMDID,
1610 				   NO_SYNC_WMIFLAG);
1611 }
1612 
1613 static int ath6kl_wmi_snr_threshold_event_rx(struct wmi *wmi, u8 *datap,
1614 					     int len)
1615 {
1616 	struct wmi_snr_threshold_event *reply;
1617 	struct sq_threshold_params *sq_thresh;
1618 	struct wmi_snr_threshold_params_cmd cmd;
1619 	enum wmi_snr_threshold_val new_threshold;
1620 	u8 upper_snr_threshold, lower_snr_threshold;
1621 	s16 snr;
1622 	int ret;
1623 
1624 	if (len < sizeof(struct wmi_snr_threshold_event))
1625 		return -EINVAL;
1626 
1627 	reply = (struct wmi_snr_threshold_event *) datap;
1628 
1629 	new_threshold = (enum wmi_snr_threshold_val) reply->range;
1630 	snr = reply->snr;
1631 
1632 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_SNR];
1633 
1634 	/*
1635 	 * Identify the threshold breached and communicate that to the app.
1636 	 * After that install a new set of thresholds based on the signal
1637 	 * quality reported by the target.
1638 	 */
1639 	if (new_threshold) {
1640 		/* Upper threshold breached */
1641 		if (snr < sq_thresh->upper_threshold[0]) {
1642 			ath6kl_dbg(ATH6KL_DBG_WMI,
1643 				   "spurious upper snr threshold event: %d\n",
1644 				   snr);
1645 		} else if ((snr < sq_thresh->upper_threshold[1]) &&
1646 			   (snr >= sq_thresh->upper_threshold[0])) {
1647 			new_threshold = WMI_SNR_THRESHOLD1_ABOVE;
1648 		} else if ((snr < sq_thresh->upper_threshold[2]) &&
1649 			   (snr >= sq_thresh->upper_threshold[1])) {
1650 			new_threshold = WMI_SNR_THRESHOLD2_ABOVE;
1651 		} else if ((snr < sq_thresh->upper_threshold[3]) &&
1652 			   (snr >= sq_thresh->upper_threshold[2])) {
1653 			new_threshold = WMI_SNR_THRESHOLD3_ABOVE;
1654 		} else if (snr >= sq_thresh->upper_threshold[3]) {
1655 			new_threshold = WMI_SNR_THRESHOLD4_ABOVE;
1656 		}
1657 	} else {
1658 		/* Lower threshold breached */
1659 		if (snr > sq_thresh->lower_threshold[0]) {
1660 			ath6kl_dbg(ATH6KL_DBG_WMI,
1661 				   "spurious lower snr threshold event: %d\n",
1662 				   sq_thresh->lower_threshold[0]);
1663 		} else if ((snr > sq_thresh->lower_threshold[1]) &&
1664 			   (snr <= sq_thresh->lower_threshold[0])) {
1665 			new_threshold = WMI_SNR_THRESHOLD4_BELOW;
1666 		} else if ((snr > sq_thresh->lower_threshold[2]) &&
1667 			   (snr <= sq_thresh->lower_threshold[1])) {
1668 			new_threshold = WMI_SNR_THRESHOLD3_BELOW;
1669 		} else if ((snr > sq_thresh->lower_threshold[3]) &&
1670 			   (snr <= sq_thresh->lower_threshold[2])) {
1671 			new_threshold = WMI_SNR_THRESHOLD2_BELOW;
1672 		} else if (snr <= sq_thresh->lower_threshold[3]) {
1673 			new_threshold = WMI_SNR_THRESHOLD1_BELOW;
1674 		}
1675 	}
1676 
1677 	/* Calculate and install the next set of thresholds */
1678 	lower_snr_threshold = ath6kl_wmi_get_lower_threshold(snr, sq_thresh,
1679 				       sq_thresh->lower_threshold_valid_count);
1680 	upper_snr_threshold = ath6kl_wmi_get_upper_threshold(snr, sq_thresh,
1681 				       sq_thresh->upper_threshold_valid_count);
1682 
1683 	/* Issue a wmi command to install the thresholds */
1684 	cmd.thresh_above1_val = upper_snr_threshold;
1685 	cmd.thresh_below1_val = lower_snr_threshold;
1686 	cmd.weight = sq_thresh->weight;
1687 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1688 
1689 	ath6kl_dbg(ATH6KL_DBG_WMI,
1690 		   "snr: %d, threshold: %d, lower: %d, upper: %d\n",
1691 		   snr, new_threshold,
1692 		   lower_snr_threshold, upper_snr_threshold);
1693 
1694 	ret = ath6kl_wmi_send_snr_threshold_params(wmi, &cmd);
1695 	if (ret) {
1696 		ath6kl_err("unable to configure snr threshold\n");
1697 		return -EIO;
1698 	}
1699 
1700 	return 0;
1701 }
1702 
1703 static int ath6kl_wmi_aplist_event_rx(struct wmi *wmi, u8 *datap, int len)
1704 {
1705 	u16 ap_info_entry_size;
1706 	struct wmi_aplist_event *ev = (struct wmi_aplist_event *) datap;
1707 	struct wmi_ap_info_v1 *ap_info_v1;
1708 	u8 index;
1709 
1710 	if (len < sizeof(struct wmi_aplist_event) ||
1711 	    ev->ap_list_ver != APLIST_VER1)
1712 		return -EINVAL;
1713 
1714 	ap_info_entry_size = sizeof(struct wmi_ap_info_v1);
1715 	ap_info_v1 = (struct wmi_ap_info_v1 *) ev->ap_list;
1716 
1717 	ath6kl_dbg(ATH6KL_DBG_WMI,
1718 		   "number of APs in aplist event: %d\n", ev->num_ap);
1719 
1720 	if (len < (int) (sizeof(struct wmi_aplist_event) +
1721 			 (ev->num_ap - 1) * ap_info_entry_size))
1722 		return -EINVAL;
1723 
1724 	/* AP list version 1 contents */
1725 	for (index = 0; index < ev->num_ap; index++) {
1726 		ath6kl_dbg(ATH6KL_DBG_WMI, "AP#%d BSSID %pM Channel %d\n",
1727 			   index, ap_info_v1->bssid, ap_info_v1->channel);
1728 		ap_info_v1++;
1729 	}
1730 
1731 	return 0;
1732 }
1733 
1734 int ath6kl_wmi_cmd_send(struct wmi *wmi, u8 if_idx, struct sk_buff *skb,
1735 			enum wmi_cmd_id cmd_id, enum wmi_sync_flag sync_flag)
1736 {
1737 	struct wmi_cmd_hdr *cmd_hdr;
1738 	enum htc_endpoint_id ep_id = wmi->ep_id;
1739 	int ret;
1740 	u16 info1;
1741 
1742 	if (WARN_ON(skb == NULL ||
1743 		    (if_idx > (wmi->parent_dev->vif_max - 1)))) {
1744 		dev_kfree_skb(skb);
1745 		return -EINVAL;
1746 	}
1747 
1748 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi tx id %d len %d flag %d\n",
1749 		   cmd_id, skb->len, sync_flag);
1750 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi tx ",
1751 			skb->data, skb->len);
1752 
1753 	if (sync_flag >= END_WMIFLAG) {
1754 		dev_kfree_skb(skb);
1755 		return -EINVAL;
1756 	}
1757 
1758 	if ((sync_flag == SYNC_BEFORE_WMIFLAG) ||
1759 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1760 		/*
1761 		 * Make sure all data currently queued is transmitted before
1762 		 * the cmd execution.  Establish a new sync point.
1763 		 */
1764 		ath6kl_wmi_sync_point(wmi, if_idx);
1765 	}
1766 
1767 	skb_push(skb, sizeof(struct wmi_cmd_hdr));
1768 
1769 	cmd_hdr = (struct wmi_cmd_hdr *) skb->data;
1770 	cmd_hdr->cmd_id = cpu_to_le16(cmd_id);
1771 	info1 = if_idx & WMI_CMD_HDR_IF_ID_MASK;
1772 	cmd_hdr->info1 = cpu_to_le16(info1);
1773 
1774 	/* Only for OPT_TX_CMD, use BE endpoint. */
1775 	if (cmd_id == WMI_OPT_TX_FRAME_CMDID) {
1776 		ret = ath6kl_wmi_data_hdr_add(wmi, skb, OPT_MSGTYPE,
1777 					      false, false, 0, NULL, if_idx);
1778 		if (ret) {
1779 			dev_kfree_skb(skb);
1780 			return ret;
1781 		}
1782 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev, WMM_AC_BE);
1783 	}
1784 
1785 	ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
1786 
1787 	if ((sync_flag == SYNC_AFTER_WMIFLAG) ||
1788 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1789 		/*
1790 		 * Make sure all new data queued waits for the command to
1791 		 * execute. Establish a new sync point.
1792 		 */
1793 		ath6kl_wmi_sync_point(wmi, if_idx);
1794 	}
1795 
1796 	return 0;
1797 }
1798 
1799 int ath6kl_wmi_connect_cmd(struct wmi *wmi, u8 if_idx,
1800 			   enum network_type nw_type,
1801 			   enum dot11_auth_mode dot11_auth_mode,
1802 			   enum auth_mode auth_mode,
1803 			   enum crypto_type pairwise_crypto,
1804 			   u8 pairwise_crypto_len,
1805 			   enum crypto_type group_crypto,
1806 			   u8 group_crypto_len, int ssid_len, u8 *ssid,
1807 			   u8 *bssid, u16 channel, u32 ctrl_flags,
1808 			   u8 nw_subtype)
1809 {
1810 	struct sk_buff *skb;
1811 	struct wmi_connect_cmd *cc;
1812 	int ret;
1813 
1814 	ath6kl_dbg(ATH6KL_DBG_WMI,
1815 		   "wmi connect bssid %pM freq %d flags 0x%x ssid_len %d "
1816 		   "type %d dot11_auth %d auth %d pairwise %d group %d\n",
1817 		   bssid, channel, ctrl_flags, ssid_len, nw_type,
1818 		   dot11_auth_mode, auth_mode, pairwise_crypto, group_crypto);
1819 	ath6kl_dbg_dump(ATH6KL_DBG_WMI, NULL, "ssid ", ssid, ssid_len);
1820 
1821 	wmi->traffic_class = 100;
1822 
1823 	if ((pairwise_crypto == NONE_CRYPT) && (group_crypto != NONE_CRYPT))
1824 		return -EINVAL;
1825 
1826 	if ((pairwise_crypto != NONE_CRYPT) && (group_crypto == NONE_CRYPT))
1827 		return -EINVAL;
1828 
1829 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_connect_cmd));
1830 	if (!skb)
1831 		return -ENOMEM;
1832 
1833 	cc = (struct wmi_connect_cmd *) skb->data;
1834 
1835 	if (ssid_len)
1836 		memcpy(cc->ssid, ssid, ssid_len);
1837 
1838 	cc->ssid_len = ssid_len;
1839 	cc->nw_type = nw_type;
1840 	cc->dot11_auth_mode = dot11_auth_mode;
1841 	cc->auth_mode = auth_mode;
1842 	cc->prwise_crypto_type = pairwise_crypto;
1843 	cc->prwise_crypto_len = pairwise_crypto_len;
1844 	cc->grp_crypto_type = group_crypto;
1845 	cc->grp_crypto_len = group_crypto_len;
1846 	cc->ch = cpu_to_le16(channel);
1847 	cc->ctrl_flags = cpu_to_le32(ctrl_flags);
1848 	cc->nw_subtype = nw_subtype;
1849 
1850 	if (bssid != NULL)
1851 		memcpy(cc->bssid, bssid, ETH_ALEN);
1852 
1853 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CONNECT_CMDID,
1854 				  NO_SYNC_WMIFLAG);
1855 
1856 	return ret;
1857 }
1858 
1859 int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 if_idx, u8 *bssid,
1860 			     u16 channel)
1861 {
1862 	struct sk_buff *skb;
1863 	struct wmi_reconnect_cmd *cc;
1864 	int ret;
1865 
1866 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi reconnect bssid %pM freq %d\n",
1867 		   bssid, channel);
1868 
1869 	wmi->traffic_class = 100;
1870 
1871 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_reconnect_cmd));
1872 	if (!skb)
1873 		return -ENOMEM;
1874 
1875 	cc = (struct wmi_reconnect_cmd *) skb->data;
1876 	cc->channel = cpu_to_le16(channel);
1877 
1878 	if (bssid != NULL)
1879 		memcpy(cc->bssid, bssid, ETH_ALEN);
1880 
1881 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RECONNECT_CMDID,
1882 				  NO_SYNC_WMIFLAG);
1883 
1884 	return ret;
1885 }
1886 
1887 int ath6kl_wmi_disconnect_cmd(struct wmi *wmi, u8 if_idx)
1888 {
1889 	int ret;
1890 
1891 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi disconnect\n");
1892 
1893 	wmi->traffic_class = 100;
1894 
1895 	/* Disconnect command does not need to do a SYNC before. */
1896 	ret = ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_DISCONNECT_CMDID);
1897 
1898 	return ret;
1899 }
1900 
1901 /* ath6kl_wmi_start_scan_cmd is to be deprecated. Use
1902  * ath6kl_wmi_begin_scan_cmd instead. The new function supports P2P
1903  * mgmt operations using station interface.
1904  */
1905 static int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx,
1906 				    enum wmi_scan_type scan_type,
1907 				    u32 force_fgscan, u32 is_legacy,
1908 				    u32 home_dwell_time,
1909 				    u32 force_scan_interval,
1910 				    s8 num_chan, u16 *ch_list)
1911 {
1912 	struct sk_buff *skb;
1913 	struct wmi_start_scan_cmd *sc;
1914 	s8 size;
1915 	int i, ret;
1916 
1917 	size = sizeof(struct wmi_start_scan_cmd);
1918 
1919 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
1920 		return -EINVAL;
1921 
1922 	if (num_chan > WMI_MAX_CHANNELS)
1923 		return -EINVAL;
1924 
1925 	if (num_chan)
1926 		size += sizeof(u16) * (num_chan - 1);
1927 
1928 	skb = ath6kl_wmi_get_new_buf(size);
1929 	if (!skb)
1930 		return -ENOMEM;
1931 
1932 	sc = (struct wmi_start_scan_cmd *) skb->data;
1933 	sc->scan_type = scan_type;
1934 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
1935 	sc->is_legacy = cpu_to_le32(is_legacy);
1936 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
1937 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
1938 	sc->num_ch = num_chan;
1939 
1940 	for (i = 0; i < num_chan; i++)
1941 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
1942 
1943 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_START_SCAN_CMDID,
1944 				  NO_SYNC_WMIFLAG);
1945 
1946 	return ret;
1947 }
1948 
1949 /*
1950  * beginscan supports (compared to old startscan) P2P mgmt operations using
1951  * station interface, send additional information like supported rates to
1952  * advertise and xmit rates for probe requests
1953  */
1954 int ath6kl_wmi_beginscan_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, u32 force_scan_interval,
1958 			     s8 num_chan, u16 *ch_list, u32 no_cck, u32 *rates)
1959 {
1960 	struct ieee80211_supported_band *sband;
1961 	struct sk_buff *skb;
1962 	struct wmi_begin_scan_cmd *sc;
1963 	s8 size, *supp_rates;
1964 	int i, band, ret;
1965 	struct ath6kl *ar = wmi->parent_dev;
1966 	int num_rates;
1967 	u32 ratemask;
1968 
1969 	if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
1970 		      ar->fw_capabilities)) {
1971 		return ath6kl_wmi_startscan_cmd(wmi, if_idx,
1972 						scan_type, force_fgscan,
1973 						is_legacy, home_dwell_time,
1974 						force_scan_interval,
1975 						num_chan, ch_list);
1976 	}
1977 
1978 	size = sizeof(struct wmi_begin_scan_cmd);
1979 
1980 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
1981 		return -EINVAL;
1982 
1983 	if (num_chan > WMI_MAX_CHANNELS)
1984 		return -EINVAL;
1985 
1986 	if (num_chan)
1987 		size += sizeof(u16) * (num_chan - 1);
1988 
1989 	skb = ath6kl_wmi_get_new_buf(size);
1990 	if (!skb)
1991 		return -ENOMEM;
1992 
1993 	sc = (struct wmi_begin_scan_cmd *) skb->data;
1994 	sc->scan_type = scan_type;
1995 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
1996 	sc->is_legacy = cpu_to_le32(is_legacy);
1997 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
1998 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
1999 	sc->no_cck = cpu_to_le32(no_cck);
2000 	sc->num_ch = num_chan;
2001 
2002 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2003 		sband = ar->wiphy->bands[band];
2004 
2005 		if (!sband)
2006 			continue;
2007 
2008 		ratemask = rates[band];
2009 		supp_rates = sc->supp_rates[band].rates;
2010 		num_rates = 0;
2011 
2012 		for (i = 0; i < sband->n_bitrates; i++) {
2013 			if ((BIT(i) & ratemask) == 0)
2014 				continue; /* skip rate */
2015 			supp_rates[num_rates++] =
2016 			    (u8) (sband->bitrates[i].bitrate / 5);
2017 		}
2018 		sc->supp_rates[band].nrates = num_rates;
2019 	}
2020 
2021 	for (i = 0; i < num_chan; i++)
2022 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
2023 
2024 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_BEGIN_SCAN_CMDID,
2025 				  NO_SYNC_WMIFLAG);
2026 
2027 	return ret;
2028 }
2029 
2030 int ath6kl_wmi_enable_sched_scan_cmd(struct wmi *wmi, u8 if_idx, bool enable)
2031 {
2032 	struct sk_buff *skb;
2033 	struct wmi_enable_sched_scan_cmd *sc;
2034 	int ret;
2035 
2036 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2037 	if (!skb)
2038 		return -ENOMEM;
2039 
2040 	ath6kl_dbg(ATH6KL_DBG_WMI, "%s scheduled scan on vif %d\n",
2041 		   enable ? "enabling" : "disabling", if_idx);
2042 	sc = (struct wmi_enable_sched_scan_cmd *) skb->data;
2043 	sc->enable = enable ? 1 : 0;
2044 
2045 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2046 				  WMI_ENABLE_SCHED_SCAN_CMDID,
2047 				  NO_SYNC_WMIFLAG);
2048 	return ret;
2049 }
2050 
2051 int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u8 if_idx,
2052 			      u16 fg_start_sec,
2053 			      u16 fg_end_sec, u16 bg_sec,
2054 			      u16 minact_chdw_msec, u16 maxact_chdw_msec,
2055 			      u16 pas_chdw_msec, u8 short_scan_ratio,
2056 			      u8 scan_ctrl_flag, u32 max_dfsch_act_time,
2057 			      u16 maxact_scan_per_ssid)
2058 {
2059 	struct sk_buff *skb;
2060 	struct wmi_scan_params_cmd *sc;
2061 	int ret;
2062 
2063 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2064 	if (!skb)
2065 		return -ENOMEM;
2066 
2067 	sc = (struct wmi_scan_params_cmd *) skb->data;
2068 	sc->fg_start_period = cpu_to_le16(fg_start_sec);
2069 	sc->fg_end_period = cpu_to_le16(fg_end_sec);
2070 	sc->bg_period = cpu_to_le16(bg_sec);
2071 	sc->minact_chdwell_time = cpu_to_le16(minact_chdw_msec);
2072 	sc->maxact_chdwell_time = cpu_to_le16(maxact_chdw_msec);
2073 	sc->pas_chdwell_time = cpu_to_le16(pas_chdw_msec);
2074 	sc->short_scan_ratio = short_scan_ratio;
2075 	sc->scan_ctrl_flags = scan_ctrl_flag;
2076 	sc->max_dfsch_act_time = cpu_to_le32(max_dfsch_act_time);
2077 	sc->maxact_scan_per_ssid = cpu_to_le16(maxact_scan_per_ssid);
2078 
2079 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_SCAN_PARAMS_CMDID,
2080 				  NO_SYNC_WMIFLAG);
2081 	return ret;
2082 }
2083 
2084 int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 if_idx, u8 filter, u32 ie_mask)
2085 {
2086 	struct sk_buff *skb;
2087 	struct wmi_bss_filter_cmd *cmd;
2088 	int ret;
2089 
2090 	if (filter >= LAST_BSS_FILTER)
2091 		return -EINVAL;
2092 
2093 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2094 	if (!skb)
2095 		return -ENOMEM;
2096 
2097 	cmd = (struct wmi_bss_filter_cmd *) skb->data;
2098 	cmd->bss_filter = filter;
2099 	cmd->ie_mask = cpu_to_le32(ie_mask);
2100 
2101 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BSS_FILTER_CMDID,
2102 				  NO_SYNC_WMIFLAG);
2103 	return ret;
2104 }
2105 
2106 int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 if_idx, u8 index, u8 flag,
2107 			      u8 ssid_len, u8 *ssid)
2108 {
2109 	struct sk_buff *skb;
2110 	struct wmi_probed_ssid_cmd *cmd;
2111 	int ret;
2112 
2113 	if (index >= MAX_PROBED_SSIDS)
2114 		return -EINVAL;
2115 
2116 	if (ssid_len > sizeof(cmd->ssid))
2117 		return -EINVAL;
2118 
2119 	if ((flag & (DISABLE_SSID_FLAG | ANY_SSID_FLAG)) && (ssid_len > 0))
2120 		return -EINVAL;
2121 
2122 	if ((flag & SPECIFIC_SSID_FLAG) && !ssid_len)
2123 		return -EINVAL;
2124 
2125 	if (flag & SPECIFIC_SSID_FLAG)
2126 		wmi->is_probe_ssid = true;
2127 
2128 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2129 	if (!skb)
2130 		return -ENOMEM;
2131 
2132 	cmd = (struct wmi_probed_ssid_cmd *) skb->data;
2133 	cmd->entry_index = index;
2134 	cmd->flag = flag;
2135 	cmd->ssid_len = ssid_len;
2136 	memcpy(cmd->ssid, ssid, ssid_len);
2137 
2138 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PROBED_SSID_CMDID,
2139 				  NO_SYNC_WMIFLAG);
2140 	return ret;
2141 }
2142 
2143 int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u8 if_idx,
2144 				  u16 listen_interval,
2145 				  u16 listen_beacons)
2146 {
2147 	struct sk_buff *skb;
2148 	struct wmi_listen_int_cmd *cmd;
2149 	int ret;
2150 
2151 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2152 	if (!skb)
2153 		return -ENOMEM;
2154 
2155 	cmd = (struct wmi_listen_int_cmd *) skb->data;
2156 	cmd->listen_intvl = cpu_to_le16(listen_interval);
2157 	cmd->num_beacons = cpu_to_le16(listen_beacons);
2158 
2159 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LISTEN_INT_CMDID,
2160 				  NO_SYNC_WMIFLAG);
2161 	return ret;
2162 }
2163 
2164 int ath6kl_wmi_bmisstime_cmd(struct wmi *wmi, u8 if_idx,
2165 			     u16 bmiss_time, u16 num_beacons)
2166 {
2167 	struct sk_buff *skb;
2168 	struct wmi_bmiss_time_cmd *cmd;
2169 	int ret;
2170 
2171 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2172 	if (!skb)
2173 		return -ENOMEM;
2174 
2175 	cmd = (struct wmi_bmiss_time_cmd *) skb->data;
2176 	cmd->bmiss_time = cpu_to_le16(bmiss_time);
2177 	cmd->num_beacons = cpu_to_le16(num_beacons);
2178 
2179 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BMISS_TIME_CMDID,
2180 				  NO_SYNC_WMIFLAG);
2181 	return ret;
2182 }
2183 
2184 int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 if_idx, u8 pwr_mode)
2185 {
2186 	struct sk_buff *skb;
2187 	struct wmi_power_mode_cmd *cmd;
2188 	int ret;
2189 
2190 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2191 	if (!skb)
2192 		return -ENOMEM;
2193 
2194 	cmd = (struct wmi_power_mode_cmd *) skb->data;
2195 	cmd->pwr_mode = pwr_mode;
2196 	wmi->pwr_mode = pwr_mode;
2197 
2198 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_MODE_CMDID,
2199 				  NO_SYNC_WMIFLAG);
2200 	return ret;
2201 }
2202 
2203 int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u8 if_idx, u16 idle_period,
2204 			    u16 ps_poll_num, u16 dtim_policy,
2205 			    u16 tx_wakeup_policy, u16 num_tx_to_wakeup,
2206 			    u16 ps_fail_event_policy)
2207 {
2208 	struct sk_buff *skb;
2209 	struct wmi_power_params_cmd *pm;
2210 	int ret;
2211 
2212 	skb = ath6kl_wmi_get_new_buf(sizeof(*pm));
2213 	if (!skb)
2214 		return -ENOMEM;
2215 
2216 	pm = (struct wmi_power_params_cmd *)skb->data;
2217 	pm->idle_period = cpu_to_le16(idle_period);
2218 	pm->pspoll_number = cpu_to_le16(ps_poll_num);
2219 	pm->dtim_policy = cpu_to_le16(dtim_policy);
2220 	pm->tx_wakeup_policy = cpu_to_le16(tx_wakeup_policy);
2221 	pm->num_tx_to_wakeup = cpu_to_le16(num_tx_to_wakeup);
2222 	pm->ps_fail_event_policy = cpu_to_le16(ps_fail_event_policy);
2223 
2224 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_PARAMS_CMDID,
2225 				  NO_SYNC_WMIFLAG);
2226 	return ret;
2227 }
2228 
2229 int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 if_idx, u8 timeout)
2230 {
2231 	struct sk_buff *skb;
2232 	struct wmi_disc_timeout_cmd *cmd;
2233 	int ret;
2234 
2235 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2236 	if (!skb)
2237 		return -ENOMEM;
2238 
2239 	cmd = (struct wmi_disc_timeout_cmd *) skb->data;
2240 	cmd->discon_timeout = timeout;
2241 
2242 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_DISC_TIMEOUT_CMDID,
2243 				  NO_SYNC_WMIFLAG);
2244 
2245 	if (ret == 0)
2246 		ath6kl_debug_set_disconnect_timeout(wmi->parent_dev, timeout);
2247 
2248 	return ret;
2249 }
2250 
2251 int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index,
2252 			  enum crypto_type key_type,
2253 			  u8 key_usage, u8 key_len,
2254 			  u8 *key_rsc, unsigned int key_rsc_len,
2255 			  u8 *key_material,
2256 			  u8 key_op_ctrl, u8 *mac_addr,
2257 			  enum wmi_sync_flag sync_flag)
2258 {
2259 	struct sk_buff *skb;
2260 	struct wmi_add_cipher_key_cmd *cmd;
2261 	int ret;
2262 
2263 	ath6kl_dbg(ATH6KL_DBG_WMI,
2264 		   "addkey cmd: key_index=%u key_type=%d key_usage=%d key_len=%d key_op_ctrl=%d\n",
2265 		   key_index, key_type, key_usage, key_len, key_op_ctrl);
2266 
2267 	if ((key_index > WMI_MAX_KEY_INDEX) || (key_len > WMI_MAX_KEY_LEN) ||
2268 	    (key_material == NULL) || key_rsc_len > 8)
2269 		return -EINVAL;
2270 
2271 	if ((WEP_CRYPT != key_type) && (NULL == key_rsc))
2272 		return -EINVAL;
2273 
2274 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2275 	if (!skb)
2276 		return -ENOMEM;
2277 
2278 	cmd = (struct wmi_add_cipher_key_cmd *) skb->data;
2279 	cmd->key_index = key_index;
2280 	cmd->key_type = key_type;
2281 	cmd->key_usage = key_usage;
2282 	cmd->key_len = key_len;
2283 	memcpy(cmd->key, key_material, key_len);
2284 
2285 	if (key_rsc != NULL)
2286 		memcpy(cmd->key_rsc, key_rsc, key_rsc_len);
2287 
2288 	cmd->key_op_ctrl = key_op_ctrl;
2289 
2290 	if (mac_addr)
2291 		memcpy(cmd->key_mac_addr, mac_addr, ETH_ALEN);
2292 
2293 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_CIPHER_KEY_CMDID,
2294 				  sync_flag);
2295 
2296 	return ret;
2297 }
2298 
2299 int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 if_idx, u8 *krk)
2300 {
2301 	struct sk_buff *skb;
2302 	struct wmi_add_krk_cmd *cmd;
2303 	int ret;
2304 
2305 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2306 	if (!skb)
2307 		return -ENOMEM;
2308 
2309 	cmd = (struct wmi_add_krk_cmd *) skb->data;
2310 	memcpy(cmd->krk, krk, WMI_KRK_LEN);
2311 
2312 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_KRK_CMDID,
2313 				  NO_SYNC_WMIFLAG);
2314 
2315 	return ret;
2316 }
2317 
2318 int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index)
2319 {
2320 	struct sk_buff *skb;
2321 	struct wmi_delete_cipher_key_cmd *cmd;
2322 	int ret;
2323 
2324 	if (key_index > WMI_MAX_KEY_INDEX)
2325 		return -EINVAL;
2326 
2327 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2328 	if (!skb)
2329 		return -ENOMEM;
2330 
2331 	cmd = (struct wmi_delete_cipher_key_cmd *) skb->data;
2332 	cmd->key_index = key_index;
2333 
2334 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_CIPHER_KEY_CMDID,
2335 				  NO_SYNC_WMIFLAG);
2336 
2337 	return ret;
2338 }
2339 
2340 int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, u8 if_idx, const u8 *bssid,
2341 			    const u8 *pmkid, bool set)
2342 {
2343 	struct sk_buff *skb;
2344 	struct wmi_setpmkid_cmd *cmd;
2345 	int ret;
2346 
2347 	if (bssid == NULL)
2348 		return -EINVAL;
2349 
2350 	if (set && pmkid == NULL)
2351 		return -EINVAL;
2352 
2353 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2354 	if (!skb)
2355 		return -ENOMEM;
2356 
2357 	cmd = (struct wmi_setpmkid_cmd *) skb->data;
2358 	memcpy(cmd->bssid, bssid, ETH_ALEN);
2359 	if (set) {
2360 		memcpy(cmd->pmkid, pmkid, sizeof(cmd->pmkid));
2361 		cmd->enable = PMKID_ENABLE;
2362 	} else {
2363 		memset(cmd->pmkid, 0, sizeof(cmd->pmkid));
2364 		cmd->enable = PMKID_DISABLE;
2365 	}
2366 
2367 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PMKID_CMDID,
2368 				  NO_SYNC_WMIFLAG);
2369 
2370 	return ret;
2371 }
2372 
2373 static int ath6kl_wmi_data_sync_send(struct wmi *wmi, struct sk_buff *skb,
2374 			      enum htc_endpoint_id ep_id, u8 if_idx)
2375 {
2376 	struct wmi_data_hdr *data_hdr;
2377 	int ret;
2378 
2379 	if (WARN_ON(skb == NULL || ep_id == wmi->ep_id)) {
2380 		dev_kfree_skb(skb);
2381 		return -EINVAL;
2382 	}
2383 
2384 	skb_push(skb, sizeof(struct wmi_data_hdr));
2385 
2386 	data_hdr = (struct wmi_data_hdr *) skb->data;
2387 	data_hdr->info = SYNC_MSGTYPE << WMI_DATA_HDR_MSG_TYPE_SHIFT;
2388 	data_hdr->info3 = cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
2389 
2390 	ret = ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
2391 
2392 	return ret;
2393 }
2394 
2395 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx)
2396 {
2397 	struct sk_buff *skb;
2398 	struct wmi_sync_cmd *cmd;
2399 	struct wmi_data_sync_bufs data_sync_bufs[WMM_NUM_AC];
2400 	enum htc_endpoint_id ep_id;
2401 	u8 index, num_pri_streams = 0;
2402 	int ret = 0;
2403 
2404 	memset(data_sync_bufs, 0, sizeof(data_sync_bufs));
2405 
2406 	spin_lock_bh(&wmi->lock);
2407 
2408 	for (index = 0; index < WMM_NUM_AC; index++) {
2409 		if (wmi->fat_pipe_exist & (1 << index)) {
2410 			num_pri_streams++;
2411 			data_sync_bufs[num_pri_streams - 1].traffic_class =
2412 			    index;
2413 		}
2414 	}
2415 
2416 	spin_unlock_bh(&wmi->lock);
2417 
2418 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2419 	if (!skb)
2420 		return -ENOMEM;
2421 
2422 	cmd = (struct wmi_sync_cmd *) skb->data;
2423 
2424 	/*
2425 	 * In the SYNC cmd sent on the control Ep, send a bitmap
2426 	 * of the data eps on which the Data Sync will be sent
2427 	 */
2428 	cmd->data_sync_map = wmi->fat_pipe_exist;
2429 
2430 	for (index = 0; index < num_pri_streams; index++) {
2431 		data_sync_bufs[index].skb = ath6kl_buf_alloc(0);
2432 		if (data_sync_bufs[index].skb == NULL) {
2433 			ret = -ENOMEM;
2434 			break;
2435 		}
2436 	}
2437 
2438 	/*
2439 	 * If buffer allocation for any of the dataSync fails,
2440 	 * then do not send the Synchronize cmd on the control ep
2441 	 */
2442 	if (ret)
2443 		goto free_cmd_skb;
2444 
2445 	/*
2446 	 * Send sync cmd followed by sync data messages on all
2447 	 * endpoints being used
2448 	 */
2449 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SYNCHRONIZE_CMDID,
2450 				  NO_SYNC_WMIFLAG);
2451 
2452 	if (ret)
2453 		goto free_data_skb;
2454 
2455 	for (index = 0; index < num_pri_streams; index++) {
2456 
2457 		if (WARN_ON(!data_sync_bufs[index].skb))
2458 			goto free_data_skb;
2459 
2460 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev,
2461 					       data_sync_bufs[index].
2462 					       traffic_class);
2463 		ret =
2464 		    ath6kl_wmi_data_sync_send(wmi, data_sync_bufs[index].skb,
2465 					      ep_id, if_idx);
2466 
2467 		data_sync_bufs[index].skb = NULL;
2468 
2469 		if (ret)
2470 			goto free_data_skb;
2471 	}
2472 
2473 	return 0;
2474 
2475 free_cmd_skb:
2476 	/* free up any resources left over (possibly due to an error) */
2477 	if (skb)
2478 		dev_kfree_skb(skb);
2479 
2480 free_data_skb:
2481 	for (index = 0; index < num_pri_streams; index++) {
2482 		if (data_sync_bufs[index].skb != NULL) {
2483 			dev_kfree_skb((struct sk_buff *)data_sync_bufs[index].
2484 				      skb);
2485 		}
2486 	}
2487 
2488 	return ret;
2489 }
2490 
2491 int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, u8 if_idx,
2492 				  struct wmi_create_pstream_cmd *params)
2493 {
2494 	struct sk_buff *skb;
2495 	struct wmi_create_pstream_cmd *cmd;
2496 	u8 fatpipe_exist_for_ac = 0;
2497 	s32 min_phy = 0;
2498 	s32 nominal_phy = 0;
2499 	int ret;
2500 
2501 	if (!((params->user_pri < 8) &&
2502 	      (params->user_pri <= 0x7) &&
2503 	      (up_to_ac[params->user_pri & 0x7] == params->traffic_class) &&
2504 	      (params->traffic_direc == UPLINK_TRAFFIC ||
2505 	       params->traffic_direc == DNLINK_TRAFFIC ||
2506 	       params->traffic_direc == BIDIR_TRAFFIC) &&
2507 	      (params->traffic_type == TRAFFIC_TYPE_APERIODIC ||
2508 	       params->traffic_type == TRAFFIC_TYPE_PERIODIC) &&
2509 	      (params->voice_psc_cap == DISABLE_FOR_THIS_AC ||
2510 	       params->voice_psc_cap == ENABLE_FOR_THIS_AC ||
2511 	       params->voice_psc_cap == ENABLE_FOR_ALL_AC) &&
2512 	      (params->tsid == WMI_IMPLICIT_PSTREAM ||
2513 	       params->tsid <= WMI_MAX_THINSTREAM))) {
2514 		return -EINVAL;
2515 	}
2516 
2517 	/*
2518 	 * Check nominal PHY rate is >= minimalPHY,
2519 	 * so that DUT can allow TSRS IE
2520 	 */
2521 
2522 	/* Get the physical rate (units of bps) */
2523 	min_phy = ((le32_to_cpu(params->min_phy_rate) / 1000) / 1000);
2524 
2525 	/* Check minimal phy < nominal phy rate */
2526 	if (params->nominal_phy >= min_phy) {
2527 		/* unit of 500 kbps */
2528 		nominal_phy = (params->nominal_phy * 1000) / 500;
2529 		ath6kl_dbg(ATH6KL_DBG_WMI,
2530 			   "TSRS IE enabled::MinPhy %x->NominalPhy ===> %x\n",
2531 			   min_phy, nominal_phy);
2532 
2533 		params->nominal_phy = nominal_phy;
2534 	} else {
2535 		params->nominal_phy = 0;
2536 	}
2537 
2538 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2539 	if (!skb)
2540 		return -ENOMEM;
2541 
2542 	ath6kl_dbg(ATH6KL_DBG_WMI,
2543 		   "sending create_pstream_cmd: ac=%d  tsid:%d\n",
2544 		   params->traffic_class, params->tsid);
2545 
2546 	cmd = (struct wmi_create_pstream_cmd *) skb->data;
2547 	memcpy(cmd, params, sizeof(*cmd));
2548 
2549 	/* This is an implicitly created Fat pipe */
2550 	if ((u32) params->tsid == (u32) WMI_IMPLICIT_PSTREAM) {
2551 		spin_lock_bh(&wmi->lock);
2552 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2553 					(1 << params->traffic_class));
2554 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2555 		spin_unlock_bh(&wmi->lock);
2556 	} else {
2557 		/* explicitly created thin stream within a fat pipe */
2558 		spin_lock_bh(&wmi->lock);
2559 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2560 					(1 << params->traffic_class));
2561 		wmi->stream_exist_for_ac[params->traffic_class] |=
2562 		    (1 << params->tsid);
2563 		/*
2564 		 * If a thinstream becomes active, the fat pipe automatically
2565 		 * becomes active
2566 		 */
2567 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2568 		spin_unlock_bh(&wmi->lock);
2569 	}
2570 
2571 	/*
2572 	 * Indicate activty change to driver layer only if this is the
2573 	 * first TSID to get created in this AC explicitly or an implicit
2574 	 * fat pipe is getting created.
2575 	 */
2576 	if (!fatpipe_exist_for_ac)
2577 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2578 					    params->traffic_class, true);
2579 
2580 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CREATE_PSTREAM_CMDID,
2581 				  NO_SYNC_WMIFLAG);
2582 	return ret;
2583 }
2584 
2585 int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 if_idx, u8 traffic_class,
2586 				  u8 tsid)
2587 {
2588 	struct sk_buff *skb;
2589 	struct wmi_delete_pstream_cmd *cmd;
2590 	u16 active_tsids = 0;
2591 	int ret;
2592 
2593 	if (traffic_class > 3) {
2594 		ath6kl_err("invalid traffic class: %d\n", traffic_class);
2595 		return -EINVAL;
2596 	}
2597 
2598 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2599 	if (!skb)
2600 		return -ENOMEM;
2601 
2602 	cmd = (struct wmi_delete_pstream_cmd *) skb->data;
2603 	cmd->traffic_class = traffic_class;
2604 	cmd->tsid = tsid;
2605 
2606 	spin_lock_bh(&wmi->lock);
2607 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2608 	spin_unlock_bh(&wmi->lock);
2609 
2610 	if (!(active_tsids & (1 << tsid))) {
2611 		dev_kfree_skb(skb);
2612 		ath6kl_dbg(ATH6KL_DBG_WMI,
2613 			   "TSID %d doesn't exist for traffic class: %d\n",
2614 			   tsid, traffic_class);
2615 		return -ENODATA;
2616 	}
2617 
2618 	ath6kl_dbg(ATH6KL_DBG_WMI,
2619 		   "sending delete_pstream_cmd: traffic class: %d tsid=%d\n",
2620 		   traffic_class, tsid);
2621 
2622 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_PSTREAM_CMDID,
2623 				  SYNC_BEFORE_WMIFLAG);
2624 
2625 	spin_lock_bh(&wmi->lock);
2626 	wmi->stream_exist_for_ac[traffic_class] &= ~(1 << tsid);
2627 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2628 	spin_unlock_bh(&wmi->lock);
2629 
2630 	/*
2631 	 * Indicate stream inactivity to driver layer only if all tsids
2632 	 * within this AC are deleted.
2633 	 */
2634 	if (!active_tsids) {
2635 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2636 					    traffic_class, false);
2637 		wmi->fat_pipe_exist &= ~(1 << traffic_class);
2638 	}
2639 
2640 	return ret;
2641 }
2642 
2643 int ath6kl_wmi_set_ip_cmd(struct wmi *wmi, u8 if_idx,
2644 			  __be32 ips0, __be32 ips1)
2645 {
2646 	struct sk_buff *skb;
2647 	struct wmi_set_ip_cmd *cmd;
2648 	int ret;
2649 
2650 	/* Multicast address are not valid */
2651 	if (ipv4_is_multicast(ips0) ||
2652 	    ipv4_is_multicast(ips1))
2653 		return -EINVAL;
2654 
2655 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_ip_cmd));
2656 	if (!skb)
2657 		return -ENOMEM;
2658 
2659 	cmd = (struct wmi_set_ip_cmd *) skb->data;
2660 	cmd->ips[0] = ips0;
2661 	cmd->ips[1] = ips1;
2662 
2663 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IP_CMDID,
2664 				  NO_SYNC_WMIFLAG);
2665 	return ret;
2666 }
2667 
2668 static void ath6kl_wmi_relinquish_implicit_pstream_credits(struct wmi *wmi)
2669 {
2670 	u16 active_tsids;
2671 	u8 stream_exist;
2672 	int i;
2673 
2674 	/*
2675 	 * Relinquish credits from all implicitly created pstreams
2676 	 * since when we go to sleep. If user created explicit
2677 	 * thinstreams exists with in a fatpipe leave them intact
2678 	 * for the user to delete.
2679 	 */
2680 	spin_lock_bh(&wmi->lock);
2681 	stream_exist = wmi->fat_pipe_exist;
2682 	spin_unlock_bh(&wmi->lock);
2683 
2684 	for (i = 0; i < WMM_NUM_AC; i++) {
2685 		if (stream_exist & (1 << i)) {
2686 
2687 			/*
2688 			 * FIXME: Is this lock & unlock inside
2689 			 * for loop correct? may need rework.
2690 			 */
2691 			spin_lock_bh(&wmi->lock);
2692 			active_tsids = wmi->stream_exist_for_ac[i];
2693 			spin_unlock_bh(&wmi->lock);
2694 
2695 			/*
2696 			 * If there are no user created thin streams
2697 			 * delete the fatpipe
2698 			 */
2699 			if (!active_tsids) {
2700 				stream_exist &= ~(1 << i);
2701 				/*
2702 				 * Indicate inactivity to driver layer for
2703 				 * this fatpipe (pstream)
2704 				 */
2705 				ath6kl_indicate_tx_activity(wmi->parent_dev,
2706 							    i, false);
2707 			}
2708 		}
2709 	}
2710 
2711 	/* FIXME: Can we do this assignment without locking ? */
2712 	spin_lock_bh(&wmi->lock);
2713 	wmi->fat_pipe_exist = stream_exist;
2714 	spin_unlock_bh(&wmi->lock);
2715 }
2716 
2717 static int ath6kl_set_bitrate_mask64(struct wmi *wmi, u8 if_idx,
2718 				     const struct cfg80211_bitrate_mask *mask)
2719 {
2720 	struct sk_buff *skb;
2721 	int ret, mode, band;
2722 	u64 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2723 	struct wmi_set_tx_select_rates64_cmd *cmd;
2724 
2725 	memset(&ratemask, 0, sizeof(ratemask));
2726 
2727 	/* only check 2.4 and 5 GHz bands, skip the rest */
2728 	for (band = 0; band <= IEEE80211_BAND_5GHZ; band++) {
2729 		/* copy legacy rate mask */
2730 		ratemask[band] = mask->control[band].legacy;
2731 		if (band == IEEE80211_BAND_5GHZ)
2732 			ratemask[band] =
2733 				mask->control[band].legacy << 4;
2734 
2735 		/* copy mcs rate mask */
2736 		mcsrate = mask->control[band].mcs[1];
2737 		mcsrate <<= 8;
2738 		mcsrate |= mask->control[band].mcs[0];
2739 		ratemask[band] |= mcsrate << 12;
2740 		ratemask[band] |= mcsrate << 28;
2741 	}
2742 
2743 	ath6kl_dbg(ATH6KL_DBG_WMI,
2744 		   "Ratemask 64 bit: 2.4:%llx 5:%llx\n",
2745 		   ratemask[0], ratemask[1]);
2746 
2747 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2748 	if (!skb)
2749 		return -ENOMEM;
2750 
2751 	cmd = (struct wmi_set_tx_select_rates64_cmd *) skb->data;
2752 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2753 		/* A mode operate in 5GHZ band */
2754 		if (mode == WMI_RATES_MODE_11A ||
2755 		    mode == WMI_RATES_MODE_11A_HT20 ||
2756 		    mode == WMI_RATES_MODE_11A_HT40)
2757 			band = IEEE80211_BAND_5GHZ;
2758 		else
2759 			band = IEEE80211_BAND_2GHZ;
2760 		cmd->ratemask[mode] = cpu_to_le64(ratemask[band]);
2761 	}
2762 
2763 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2764 				  WMI_SET_TX_SELECT_RATES_CMDID,
2765 				  NO_SYNC_WMIFLAG);
2766 	return ret;
2767 }
2768 
2769 static int ath6kl_set_bitrate_mask32(struct wmi *wmi, u8 if_idx,
2770 				     const struct cfg80211_bitrate_mask *mask)
2771 {
2772 	struct sk_buff *skb;
2773 	int ret, mode, band;
2774 	u32 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2775 	struct wmi_set_tx_select_rates32_cmd *cmd;
2776 
2777 	memset(&ratemask, 0, sizeof(ratemask));
2778 
2779 	/* only check 2.4 and 5 GHz bands, skip the rest */
2780 	for (band = 0; band <= IEEE80211_BAND_5GHZ; band++) {
2781 		/* copy legacy rate mask */
2782 		ratemask[band] = mask->control[band].legacy;
2783 		if (band == IEEE80211_BAND_5GHZ)
2784 			ratemask[band] =
2785 				mask->control[band].legacy << 4;
2786 
2787 		/* copy mcs rate mask */
2788 		mcsrate = mask->control[band].mcs[0];
2789 		ratemask[band] |= mcsrate << 12;
2790 		ratemask[band] |= mcsrate << 20;
2791 	}
2792 
2793 	ath6kl_dbg(ATH6KL_DBG_WMI,
2794 		   "Ratemask 32 bit: 2.4:%x 5:%x\n",
2795 		   ratemask[0], ratemask[1]);
2796 
2797 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2798 	if (!skb)
2799 		return -ENOMEM;
2800 
2801 	cmd = (struct wmi_set_tx_select_rates32_cmd *) skb->data;
2802 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2803 		/* A mode operate in 5GHZ band */
2804 		if (mode == WMI_RATES_MODE_11A ||
2805 		    mode == WMI_RATES_MODE_11A_HT20 ||
2806 		    mode == WMI_RATES_MODE_11A_HT40)
2807 			band = IEEE80211_BAND_5GHZ;
2808 		else
2809 			band = IEEE80211_BAND_2GHZ;
2810 		cmd->ratemask[mode] = cpu_to_le32(ratemask[band]);
2811 	}
2812 
2813 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2814 				  WMI_SET_TX_SELECT_RATES_CMDID,
2815 				  NO_SYNC_WMIFLAG);
2816 	return ret;
2817 }
2818 
2819 int ath6kl_wmi_set_bitrate_mask(struct wmi *wmi, u8 if_idx,
2820 				const struct cfg80211_bitrate_mask *mask)
2821 {
2822 	struct ath6kl *ar = wmi->parent_dev;
2823 
2824 	if (ar->hw.flags & ATH6KL_HW_FLAG_64BIT_RATES)
2825 		return ath6kl_set_bitrate_mask64(wmi, if_idx, mask);
2826 	else
2827 		return ath6kl_set_bitrate_mask32(wmi, if_idx, mask);
2828 }
2829 
2830 int ath6kl_wmi_set_host_sleep_mode_cmd(struct wmi *wmi, u8 if_idx,
2831 				       enum ath6kl_host_mode host_mode)
2832 {
2833 	struct sk_buff *skb;
2834 	struct wmi_set_host_sleep_mode_cmd *cmd;
2835 	int ret;
2836 
2837 	if ((host_mode != ATH6KL_HOST_MODE_ASLEEP) &&
2838 	    (host_mode != ATH6KL_HOST_MODE_AWAKE)) {
2839 		ath6kl_err("invalid host sleep mode: %d\n", host_mode);
2840 		return -EINVAL;
2841 	}
2842 
2843 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2844 	if (!skb)
2845 		return -ENOMEM;
2846 
2847 	cmd = (struct wmi_set_host_sleep_mode_cmd *) skb->data;
2848 
2849 	if (host_mode == ATH6KL_HOST_MODE_ASLEEP) {
2850 		ath6kl_wmi_relinquish_implicit_pstream_credits(wmi);
2851 		cmd->asleep = cpu_to_le32(1);
2852 	} else
2853 		cmd->awake = cpu_to_le32(1);
2854 
2855 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2856 				  WMI_SET_HOST_SLEEP_MODE_CMDID,
2857 				  NO_SYNC_WMIFLAG);
2858 	return ret;
2859 }
2860 
2861 /* This command has zero length payload */
2862 static int ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(struct wmi *wmi,
2863 						      struct ath6kl_vif *vif)
2864 {
2865 	struct ath6kl *ar = wmi->parent_dev;
2866 
2867 	set_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2868 	wake_up(&ar->event_wq);
2869 
2870 	return 0;
2871 }
2872 
2873 int ath6kl_wmi_set_wow_mode_cmd(struct wmi *wmi, u8 if_idx,
2874 				enum ath6kl_wow_mode wow_mode,
2875 				u32 filter, u16 host_req_delay)
2876 {
2877 	struct sk_buff *skb;
2878 	struct wmi_set_wow_mode_cmd *cmd;
2879 	int ret;
2880 
2881 	if ((wow_mode != ATH6KL_WOW_MODE_ENABLE) &&
2882 	    wow_mode != ATH6KL_WOW_MODE_DISABLE) {
2883 		ath6kl_err("invalid wow mode: %d\n", wow_mode);
2884 		return -EINVAL;
2885 	}
2886 
2887 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2888 	if (!skb)
2889 		return -ENOMEM;
2890 
2891 	cmd = (struct wmi_set_wow_mode_cmd *) skb->data;
2892 	cmd->enable_wow = cpu_to_le32(wow_mode);
2893 	cmd->filter = cpu_to_le32(filter);
2894 	cmd->host_req_delay = cpu_to_le16(host_req_delay);
2895 
2896 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WOW_MODE_CMDID,
2897 				  NO_SYNC_WMIFLAG);
2898 	return ret;
2899 }
2900 
2901 int ath6kl_wmi_add_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2902 				   u8 list_id, u8 filter_size,
2903 				   u8 filter_offset, const u8 *filter,
2904 				   const u8 *mask)
2905 {
2906 	struct sk_buff *skb;
2907 	struct wmi_add_wow_pattern_cmd *cmd;
2908 	u16 size;
2909 	u8 *filter_mask;
2910 	int ret;
2911 
2912 	/*
2913 	 * Allocate additional memory in the buffer to hold
2914 	 * filter and mask value, which is twice of filter_size.
2915 	 */
2916 	size = sizeof(*cmd) + (2 * filter_size);
2917 
2918 	skb = ath6kl_wmi_get_new_buf(size);
2919 	if (!skb)
2920 		return -ENOMEM;
2921 
2922 	cmd = (struct wmi_add_wow_pattern_cmd *) skb->data;
2923 	cmd->filter_list_id = list_id;
2924 	cmd->filter_size = filter_size;
2925 	cmd->filter_offset = filter_offset;
2926 
2927 	memcpy(cmd->filter, filter, filter_size);
2928 
2929 	filter_mask = (u8 *) (cmd->filter + filter_size);
2930 	memcpy(filter_mask, mask, filter_size);
2931 
2932 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_WOW_PATTERN_CMDID,
2933 				  NO_SYNC_WMIFLAG);
2934 
2935 	return ret;
2936 }
2937 
2938 int ath6kl_wmi_del_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2939 				   u16 list_id, u16 filter_id)
2940 {
2941 	struct sk_buff *skb;
2942 	struct wmi_del_wow_pattern_cmd *cmd;
2943 	int ret;
2944 
2945 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2946 	if (!skb)
2947 		return -ENOMEM;
2948 
2949 	cmd = (struct wmi_del_wow_pattern_cmd *) skb->data;
2950 	cmd->filter_list_id = cpu_to_le16(list_id);
2951 	cmd->filter_id = cpu_to_le16(filter_id);
2952 
2953 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DEL_WOW_PATTERN_CMDID,
2954 				  NO_SYNC_WMIFLAG);
2955 	return ret;
2956 }
2957 
2958 static int ath6kl_wmi_cmd_send_xtnd(struct wmi *wmi, struct sk_buff *skb,
2959 				    enum wmix_command_id cmd_id,
2960 				    enum wmi_sync_flag sync_flag)
2961 {
2962 	struct wmix_cmd_hdr *cmd_hdr;
2963 	int ret;
2964 
2965 	skb_push(skb, sizeof(struct wmix_cmd_hdr));
2966 
2967 	cmd_hdr = (struct wmix_cmd_hdr *) skb->data;
2968 	cmd_hdr->cmd_id = cpu_to_le32(cmd_id);
2969 
2970 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_EXTENSION_CMDID, sync_flag);
2971 
2972 	return ret;
2973 }
2974 
2975 int ath6kl_wmi_get_challenge_resp_cmd(struct wmi *wmi, u32 cookie, u32 source)
2976 {
2977 	struct sk_buff *skb;
2978 	struct wmix_hb_challenge_resp_cmd *cmd;
2979 	int ret;
2980 
2981 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2982 	if (!skb)
2983 		return -ENOMEM;
2984 
2985 	cmd = (struct wmix_hb_challenge_resp_cmd *) skb->data;
2986 	cmd->cookie = cpu_to_le32(cookie);
2987 	cmd->source = cpu_to_le32(source);
2988 
2989 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_HB_CHALLENGE_RESP_CMDID,
2990 				       NO_SYNC_WMIFLAG);
2991 	return ret;
2992 }
2993 
2994 int ath6kl_wmi_config_debug_module_cmd(struct wmi *wmi, u32 valid, u32 config)
2995 {
2996 	struct ath6kl_wmix_dbglog_cfg_module_cmd *cmd;
2997 	struct sk_buff *skb;
2998 	int ret;
2999 
3000 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3001 	if (!skb)
3002 		return -ENOMEM;
3003 
3004 	cmd = (struct ath6kl_wmix_dbglog_cfg_module_cmd *) skb->data;
3005 	cmd->valid = cpu_to_le32(valid);
3006 	cmd->config = cpu_to_le32(config);
3007 
3008 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_DBGLOG_CFG_MODULE_CMDID,
3009 				       NO_SYNC_WMIFLAG);
3010 	return ret;
3011 }
3012 
3013 int ath6kl_wmi_get_stats_cmd(struct wmi *wmi, u8 if_idx)
3014 {
3015 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_STATISTICS_CMDID);
3016 }
3017 
3018 int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 if_idx, u8 dbM)
3019 {
3020 	struct sk_buff *skb;
3021 	struct wmi_set_tx_pwr_cmd *cmd;
3022 	int ret;
3023 
3024 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_tx_pwr_cmd));
3025 	if (!skb)
3026 		return -ENOMEM;
3027 
3028 	cmd = (struct wmi_set_tx_pwr_cmd *) skb->data;
3029 	cmd->dbM = dbM;
3030 
3031 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_TX_PWR_CMDID,
3032 				  NO_SYNC_WMIFLAG);
3033 
3034 	return ret;
3035 }
3036 
3037 int ath6kl_wmi_get_tx_pwr_cmd(struct wmi *wmi, u8 if_idx)
3038 {
3039 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_TX_PWR_CMDID);
3040 }
3041 
3042 int ath6kl_wmi_get_roam_tbl_cmd(struct wmi *wmi)
3043 {
3044 	return ath6kl_wmi_simple_cmd(wmi, 0, WMI_GET_ROAM_TBL_CMDID);
3045 }
3046 
3047 int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 if_idx, u8 status,
3048 				 u8 preamble_policy)
3049 {
3050 	struct sk_buff *skb;
3051 	struct wmi_set_lpreamble_cmd *cmd;
3052 	int ret;
3053 
3054 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_lpreamble_cmd));
3055 	if (!skb)
3056 		return -ENOMEM;
3057 
3058 	cmd = (struct wmi_set_lpreamble_cmd *) skb->data;
3059 	cmd->status = status;
3060 	cmd->preamble_policy = preamble_policy;
3061 
3062 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LPREAMBLE_CMDID,
3063 				  NO_SYNC_WMIFLAG);
3064 	return ret;
3065 }
3066 
3067 int ath6kl_wmi_set_rts_cmd(struct wmi *wmi, u16 threshold)
3068 {
3069 	struct sk_buff *skb;
3070 	struct wmi_set_rts_cmd *cmd;
3071 	int ret;
3072 
3073 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_rts_cmd));
3074 	if (!skb)
3075 		return -ENOMEM;
3076 
3077 	cmd = (struct wmi_set_rts_cmd *) skb->data;
3078 	cmd->threshold = cpu_to_le16(threshold);
3079 
3080 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_RTS_CMDID,
3081 				  NO_SYNC_WMIFLAG);
3082 	return ret;
3083 }
3084 
3085 int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, u8 if_idx, enum wmi_txop_cfg cfg)
3086 {
3087 	struct sk_buff *skb;
3088 	struct wmi_set_wmm_txop_cmd *cmd;
3089 	int ret;
3090 
3091 	if (!((cfg == WMI_TXOP_DISABLED) || (cfg == WMI_TXOP_ENABLED)))
3092 		return -EINVAL;
3093 
3094 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_wmm_txop_cmd));
3095 	if (!skb)
3096 		return -ENOMEM;
3097 
3098 	cmd = (struct wmi_set_wmm_txop_cmd *) skb->data;
3099 	cmd->txop_enable = cfg;
3100 
3101 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WMM_TXOP_CMDID,
3102 				  NO_SYNC_WMIFLAG);
3103 	return ret;
3104 }
3105 
3106 int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 if_idx,
3107 				 u8 keep_alive_intvl)
3108 {
3109 	struct sk_buff *skb;
3110 	struct wmi_set_keepalive_cmd *cmd;
3111 	int ret;
3112 
3113 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3114 	if (!skb)
3115 		return -ENOMEM;
3116 
3117 	cmd = (struct wmi_set_keepalive_cmd *) skb->data;
3118 	cmd->keep_alive_intvl = keep_alive_intvl;
3119 
3120 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_KEEPALIVE_CMDID,
3121 				  NO_SYNC_WMIFLAG);
3122 
3123 	if (ret == 0)
3124 		ath6kl_debug_set_keepalive(wmi->parent_dev, keep_alive_intvl);
3125 
3126 	return ret;
3127 }
3128 
3129 int ath6kl_wmi_set_htcap_cmd(struct wmi *wmi, u8 if_idx,
3130 			     enum ieee80211_band band,
3131 			     struct ath6kl_htcap *htcap)
3132 {
3133 	struct sk_buff *skb;
3134 	struct wmi_set_htcap_cmd *cmd;
3135 
3136 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3137 	if (!skb)
3138 		return -ENOMEM;
3139 
3140 	cmd = (struct wmi_set_htcap_cmd *) skb->data;
3141 
3142 	/*
3143 	 * NOTE: Band in firmware matches enum ieee80211_band, it is unlikely
3144 	 * this will be changed in firmware. If at all there is any change in
3145 	 * band value, the host needs to be fixed.
3146 	 */
3147 	cmd->band = band;
3148 	cmd->ht_enable = !!htcap->ht_enable;
3149 	cmd->ht20_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_20);
3150 	cmd->ht40_supported =
3151 		!!(htcap->cap_info & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
3152 	cmd->ht40_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_40);
3153 	cmd->intolerant_40mhz =
3154 		!!(htcap->cap_info & IEEE80211_HT_CAP_40MHZ_INTOLERANT);
3155 	cmd->max_ampdu_len_exp = htcap->ampdu_factor;
3156 
3157 	ath6kl_dbg(ATH6KL_DBG_WMI,
3158 		   "Set htcap: band:%d ht_enable:%d 40mhz:%d sgi_20mhz:%d sgi_40mhz:%d 40mhz_intolerant:%d ampdu_len_exp:%d\n",
3159 		   cmd->band, cmd->ht_enable, cmd->ht40_supported,
3160 		   cmd->ht20_sgi, cmd->ht40_sgi, cmd->intolerant_40mhz,
3161 		   cmd->max_ampdu_len_exp);
3162 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_HT_CAP_CMDID,
3163 				   NO_SYNC_WMIFLAG);
3164 }
3165 
3166 int ath6kl_wmi_test_cmd(struct wmi *wmi, void *buf, size_t len)
3167 {
3168 	struct sk_buff *skb;
3169 	int ret;
3170 
3171 	skb = ath6kl_wmi_get_new_buf(len);
3172 	if (!skb)
3173 		return -ENOMEM;
3174 
3175 	memcpy(skb->data, buf, len);
3176 
3177 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_TEST_CMDID, NO_SYNC_WMIFLAG);
3178 
3179 	return ret;
3180 }
3181 
3182 int ath6kl_wmi_mcast_filter_cmd(struct wmi *wmi, u8 if_idx, bool mc_all_on)
3183 {
3184 	struct sk_buff *skb;
3185 	struct wmi_mcast_filter_cmd *cmd;
3186 	int ret;
3187 
3188 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3189 	if (!skb)
3190 		return -ENOMEM;
3191 
3192 	cmd = (struct wmi_mcast_filter_cmd *) skb->data;
3193 	cmd->mcast_all_enable = mc_all_on;
3194 
3195 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_MCAST_FILTER_CMDID,
3196 				  NO_SYNC_WMIFLAG);
3197 	return ret;
3198 }
3199 
3200 int ath6kl_wmi_add_del_mcast_filter_cmd(struct wmi *wmi, u8 if_idx,
3201 					u8 *filter, bool add_filter)
3202 {
3203 	struct sk_buff *skb;
3204 	struct wmi_mcast_filter_add_del_cmd *cmd;
3205 	int ret;
3206 
3207 	if ((filter[0] != 0x33 || filter[1] != 0x33) &&
3208 	    (filter[0] != 0x01 || filter[1] != 0x00 ||
3209 	    filter[2] != 0x5e || filter[3] > 0x7f)) {
3210 		ath6kl_warn("invalid multicast filter address\n");
3211 		return -EINVAL;
3212 	}
3213 
3214 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3215 	if (!skb)
3216 		return -ENOMEM;
3217 
3218 	cmd = (struct wmi_mcast_filter_add_del_cmd *) skb->data;
3219 	memcpy(cmd->mcast_mac, filter, ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
3220 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3221 				  add_filter ? WMI_SET_MCAST_FILTER_CMDID :
3222 				  WMI_DEL_MCAST_FILTER_CMDID,
3223 				  NO_SYNC_WMIFLAG);
3224 
3225 	return ret;
3226 }
3227 
3228 int ath6kl_wmi_sta_bmiss_enhance_cmd(struct wmi *wmi, u8 if_idx, bool enhance)
3229 {
3230 	struct sk_buff *skb;
3231 	struct wmi_sta_bmiss_enhance_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_sta_bmiss_enhance_cmd *) skb->data;
3239 	cmd->enable = enhance ? 1 : 0;
3240 
3241 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3242 				  WMI_STA_BMISS_ENHANCE_CMDID,
3243 				  NO_SYNC_WMIFLAG);
3244 	return ret;
3245 }
3246 
3247 int ath6kl_wmi_set_regdomain_cmd(struct wmi *wmi, const char *alpha2)
3248 {
3249 	struct sk_buff *skb;
3250 	struct wmi_set_regdomain_cmd *cmd;
3251 
3252 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3253 	if (!skb)
3254 		return -ENOMEM;
3255 
3256 	cmd = (struct wmi_set_regdomain_cmd *) skb->data;
3257 	memcpy(cmd->iso_name, alpha2, 2);
3258 
3259 	return ath6kl_wmi_cmd_send(wmi, 0, skb,
3260 				   WMI_SET_REGDOMAIN_CMDID,
3261 				   NO_SYNC_WMIFLAG);
3262 }
3263 
3264 s32 ath6kl_wmi_get_rate(s8 rate_index)
3265 {
3266 	u8 sgi = 0;
3267 
3268 	if (rate_index == RATE_AUTO)
3269 		return 0;
3270 
3271 	/* SGI is stored as the MSB of the rate_index */
3272 	if (rate_index & RATE_INDEX_MSB) {
3273 		rate_index &= RATE_INDEX_WITHOUT_SGI_MASK;
3274 		sgi = 1;
3275 	}
3276 
3277 	if (WARN_ON(rate_index > RATE_MCS_7_40))
3278 		rate_index = RATE_MCS_7_40;
3279 
3280 	return wmi_rate_tbl[(u32) rate_index][sgi];
3281 }
3282 
3283 static int ath6kl_wmi_get_pmkid_list_event_rx(struct wmi *wmi, u8 *datap,
3284 					      u32 len)
3285 {
3286 	struct wmi_pmkid_list_reply *reply;
3287 	u32 expected_len;
3288 
3289 	if (len < sizeof(struct wmi_pmkid_list_reply))
3290 		return -EINVAL;
3291 
3292 	reply = (struct wmi_pmkid_list_reply *)datap;
3293 	expected_len = sizeof(reply->num_pmkid) +
3294 		le32_to_cpu(reply->num_pmkid) * WMI_PMKID_LEN;
3295 
3296 	if (len < expected_len)
3297 		return -EINVAL;
3298 
3299 	return 0;
3300 }
3301 
3302 static int ath6kl_wmi_addba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3303 					 struct ath6kl_vif *vif)
3304 {
3305 	struct wmi_addba_req_event *cmd = (struct wmi_addba_req_event *) datap;
3306 
3307 	aggr_recv_addba_req_evt(vif, cmd->tid,
3308 				le16_to_cpu(cmd->st_seq_no), cmd->win_sz);
3309 
3310 	return 0;
3311 }
3312 
3313 static int ath6kl_wmi_delba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3314 					 struct ath6kl_vif *vif)
3315 {
3316 	struct wmi_delba_event *cmd = (struct wmi_delba_event *) datap;
3317 
3318 	aggr_recv_delba_req_evt(vif, cmd->tid);
3319 
3320 	return 0;
3321 }
3322 
3323 /*  AP mode functions */
3324 
3325 int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, u8 if_idx,
3326 				 struct wmi_connect_cmd *p)
3327 {
3328 	struct sk_buff *skb;
3329 	struct wmi_connect_cmd *cm;
3330 	int res;
3331 
3332 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3333 	if (!skb)
3334 		return -ENOMEM;
3335 
3336 	cm = (struct wmi_connect_cmd *) skb->data;
3337 	memcpy(cm, p, sizeof(*cm));
3338 
3339 	res = ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_CONFIG_COMMIT_CMDID,
3340 				  NO_SYNC_WMIFLAG);
3341 	ath6kl_dbg(ATH6KL_DBG_WMI,
3342 		   "%s: nw_type=%u auth_mode=%u ch=%u ctrl_flags=0x%x-> res=%d\n",
3343 		   __func__, p->nw_type, p->auth_mode, le16_to_cpu(p->ch),
3344 		   le32_to_cpu(p->ctrl_flags), res);
3345 	return res;
3346 }
3347 
3348 int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 if_idx, u8 cmd, const u8 *mac,
3349 			   u16 reason)
3350 {
3351 	struct sk_buff *skb;
3352 	struct wmi_ap_set_mlme_cmd *cm;
3353 
3354 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3355 	if (!skb)
3356 		return -ENOMEM;
3357 
3358 	cm = (struct wmi_ap_set_mlme_cmd *) skb->data;
3359 	memcpy(cm->mac, mac, ETH_ALEN);
3360 	cm->reason = cpu_to_le16(reason);
3361 	cm->cmd = cmd;
3362 
3363 	ath6kl_dbg(ATH6KL_DBG_WMI, "ap_set_mlme: cmd=%d reason=%d\n", cm->cmd,
3364 		   cm->reason);
3365 
3366 	return ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_SET_MLME_CMDID,
3367 				   NO_SYNC_WMIFLAG);
3368 }
3369 
3370 int ath6kl_wmi_ap_hidden_ssid(struct wmi *wmi, u8 if_idx, bool enable)
3371 {
3372 	struct sk_buff *skb;
3373 	struct wmi_ap_hidden_ssid_cmd *cmd;
3374 
3375 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3376 	if (!skb)
3377 		return -ENOMEM;
3378 
3379 	cmd = (struct wmi_ap_hidden_ssid_cmd *) skb->data;
3380 	cmd->hidden_ssid = enable ? 1 : 0;
3381 
3382 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_HIDDEN_SSID_CMDID,
3383 				   NO_SYNC_WMIFLAG);
3384 }
3385 
3386 /* This command will be used to enable/disable AP uAPSD feature */
3387 int ath6kl_wmi_ap_set_apsd(struct wmi *wmi, u8 if_idx, u8 enable)
3388 {
3389 	struct wmi_ap_set_apsd_cmd *cmd;
3390 	struct sk_buff *skb;
3391 
3392 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3393 	if (!skb)
3394 		return -ENOMEM;
3395 
3396 	cmd = (struct wmi_ap_set_apsd_cmd *)skb->data;
3397 	cmd->enable = enable;
3398 
3399 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_APSD_CMDID,
3400 				   NO_SYNC_WMIFLAG);
3401 }
3402 
3403 int ath6kl_wmi_set_apsd_bfrd_traf(struct wmi *wmi, u8 if_idx,
3404 					     u16 aid, u16 bitmap, u32 flags)
3405 {
3406 	struct wmi_ap_apsd_buffered_traffic_cmd *cmd;
3407 	struct sk_buff *skb;
3408 
3409 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3410 	if (!skb)
3411 		return -ENOMEM;
3412 
3413 	cmd = (struct wmi_ap_apsd_buffered_traffic_cmd *)skb->data;
3414 	cmd->aid = cpu_to_le16(aid);
3415 	cmd->bitmap = cpu_to_le16(bitmap);
3416 	cmd->flags = cpu_to_le32(flags);
3417 
3418 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3419 				   WMI_AP_APSD_BUFFERED_TRAFFIC_CMDID,
3420 				   NO_SYNC_WMIFLAG);
3421 }
3422 
3423 static int ath6kl_wmi_pspoll_event_rx(struct wmi *wmi, u8 *datap, int len,
3424 				      struct ath6kl_vif *vif)
3425 {
3426 	struct wmi_pspoll_event *ev;
3427 
3428 	if (len < sizeof(struct wmi_pspoll_event))
3429 		return -EINVAL;
3430 
3431 	ev = (struct wmi_pspoll_event *) datap;
3432 
3433 	ath6kl_pspoll_event(vif, le16_to_cpu(ev->aid));
3434 
3435 	return 0;
3436 }
3437 
3438 static int ath6kl_wmi_dtimexpiry_event_rx(struct wmi *wmi, u8 *datap, int len,
3439 					  struct ath6kl_vif *vif)
3440 {
3441 	ath6kl_dtimexpiry_event(vif);
3442 
3443 	return 0;
3444 }
3445 
3446 int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u8 if_idx, u16 aid,
3447 			   bool flag)
3448 {
3449 	struct sk_buff *skb;
3450 	struct wmi_ap_set_pvb_cmd *cmd;
3451 	int ret;
3452 
3453 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_ap_set_pvb_cmd));
3454 	if (!skb)
3455 		return -ENOMEM;
3456 
3457 	cmd = (struct wmi_ap_set_pvb_cmd *) skb->data;
3458 	cmd->aid = cpu_to_le16(aid);
3459 	cmd->rsvd = cpu_to_le16(0);
3460 	cmd->flag = cpu_to_le32(flag);
3461 
3462 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_PVB_CMDID,
3463 				  NO_SYNC_WMIFLAG);
3464 
3465 	return 0;
3466 }
3467 
3468 int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 if_idx,
3469 				       u8 rx_meta_ver,
3470 				       bool rx_dot11_hdr, bool defrag_on_host)
3471 {
3472 	struct sk_buff *skb;
3473 	struct wmi_rx_frame_format_cmd *cmd;
3474 	int ret;
3475 
3476 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3477 	if (!skb)
3478 		return -ENOMEM;
3479 
3480 	cmd = (struct wmi_rx_frame_format_cmd *) skb->data;
3481 	cmd->dot11_hdr = rx_dot11_hdr ? 1 : 0;
3482 	cmd->defrag_on_host = defrag_on_host ? 1 : 0;
3483 	cmd->meta_ver = rx_meta_ver;
3484 
3485 	/* Delete the local aggr state, on host */
3486 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RX_FRAME_FORMAT_CMDID,
3487 				  NO_SYNC_WMIFLAG);
3488 
3489 	return ret;
3490 }
3491 
3492 int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type,
3493 			     const u8 *ie, u8 ie_len)
3494 {
3495 	struct sk_buff *skb;
3496 	struct wmi_set_appie_cmd *p;
3497 
3498 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3499 	if (!skb)
3500 		return -ENOMEM;
3501 
3502 	ath6kl_dbg(ATH6KL_DBG_WMI,
3503 		   "set_appie_cmd: mgmt_frm_type=%u ie_len=%u\n",
3504 		   mgmt_frm_type, ie_len);
3505 	p = (struct wmi_set_appie_cmd *) skb->data;
3506 	p->mgmt_frm_type = mgmt_frm_type;
3507 	p->ie_len = ie_len;
3508 
3509 	if (ie != NULL && ie_len > 0)
3510 		memcpy(p->ie_info, ie, ie_len);
3511 
3512 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_APPIE_CMDID,
3513 				   NO_SYNC_WMIFLAG);
3514 }
3515 
3516 int ath6kl_wmi_set_ie_cmd(struct wmi *wmi, u8 if_idx, u8 ie_id, u8 ie_field,
3517 			  const u8 *ie_info, u8 ie_len)
3518 {
3519 	struct sk_buff *skb;
3520 	struct wmi_set_ie_cmd *p;
3521 
3522 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3523 	if (!skb)
3524 		return -ENOMEM;
3525 
3526 	ath6kl_dbg(ATH6KL_DBG_WMI, "set_ie_cmd: ie_id=%u ie_ie_field=%u ie_len=%u\n",
3527 		   ie_id, ie_field, ie_len);
3528 	p = (struct wmi_set_ie_cmd *) skb->data;
3529 	p->ie_id = ie_id;
3530 	p->ie_field = ie_field;
3531 	p->ie_len = ie_len;
3532 	if (ie_info && ie_len > 0)
3533 		memcpy(p->ie_info, ie_info, ie_len);
3534 
3535 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IE_CMDID,
3536 				   NO_SYNC_WMIFLAG);
3537 }
3538 
3539 int ath6kl_wmi_disable_11b_rates_cmd(struct wmi *wmi, bool disable)
3540 {
3541 	struct sk_buff *skb;
3542 	struct wmi_disable_11b_rates_cmd *cmd;
3543 
3544 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3545 	if (!skb)
3546 		return -ENOMEM;
3547 
3548 	ath6kl_dbg(ATH6KL_DBG_WMI, "disable_11b_rates_cmd: disable=%u\n",
3549 		   disable);
3550 	cmd = (struct wmi_disable_11b_rates_cmd *) skb->data;
3551 	cmd->disable = disable ? 1 : 0;
3552 
3553 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_DISABLE_11B_RATES_CMDID,
3554 				   NO_SYNC_WMIFLAG);
3555 }
3556 
3557 int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx, u32 freq, u32 dur)
3558 {
3559 	struct sk_buff *skb;
3560 	struct wmi_remain_on_chnl_cmd *p;
3561 
3562 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3563 	if (!skb)
3564 		return -ENOMEM;
3565 
3566 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl_cmd: freq=%u dur=%u\n",
3567 		   freq, dur);
3568 	p = (struct wmi_remain_on_chnl_cmd *) skb->data;
3569 	p->freq = cpu_to_le32(freq);
3570 	p->duration = cpu_to_le32(dur);
3571 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_REMAIN_ON_CHNL_CMDID,
3572 				   NO_SYNC_WMIFLAG);
3573 }
3574 
3575 /* ath6kl_wmi_send_action_cmd is to be deprecated. Use
3576  * ath6kl_wmi_send_mgmt_cmd instead. The new function supports P2P
3577  * mgmt operations using station interface.
3578  */
3579 static int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3580 				      u32 freq, u32 wait, const u8 *data,
3581 				      u16 data_len)
3582 {
3583 	struct sk_buff *skb;
3584 	struct wmi_send_action_cmd *p;
3585 	u8 *buf;
3586 
3587 	if (wait)
3588 		return -EINVAL; /* Offload for wait not supported */
3589 
3590 	buf = kmalloc(data_len, GFP_KERNEL);
3591 	if (!buf)
3592 		return -ENOMEM;
3593 
3594 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3595 	if (!skb) {
3596 		kfree(buf);
3597 		return -ENOMEM;
3598 	}
3599 
3600 	kfree(wmi->last_mgmt_tx_frame);
3601 	memcpy(buf, data, data_len);
3602 	wmi->last_mgmt_tx_frame = buf;
3603 	wmi->last_mgmt_tx_frame_len = data_len;
3604 
3605 	ath6kl_dbg(ATH6KL_DBG_WMI,
3606 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3607 		   id, freq, wait, data_len);
3608 	p = (struct wmi_send_action_cmd *) skb->data;
3609 	p->id = cpu_to_le32(id);
3610 	p->freq = cpu_to_le32(freq);
3611 	p->wait = cpu_to_le32(wait);
3612 	p->len = cpu_to_le16(data_len);
3613 	memcpy(p->data, data, data_len);
3614 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_ACTION_CMDID,
3615 				   NO_SYNC_WMIFLAG);
3616 }
3617 
3618 static int __ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3619 				      u32 freq, u32 wait, const u8 *data,
3620 				      u16 data_len, u32 no_cck)
3621 {
3622 	struct sk_buff *skb;
3623 	struct wmi_send_mgmt_cmd *p;
3624 	u8 *buf;
3625 
3626 	if (wait)
3627 		return -EINVAL; /* Offload for wait not supported */
3628 
3629 	buf = kmalloc(data_len, GFP_KERNEL);
3630 	if (!buf)
3631 		return -ENOMEM;
3632 
3633 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3634 	if (!skb) {
3635 		kfree(buf);
3636 		return -ENOMEM;
3637 	}
3638 
3639 	kfree(wmi->last_mgmt_tx_frame);
3640 	memcpy(buf, data, data_len);
3641 	wmi->last_mgmt_tx_frame = buf;
3642 	wmi->last_mgmt_tx_frame_len = data_len;
3643 
3644 	ath6kl_dbg(ATH6KL_DBG_WMI,
3645 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3646 		   id, freq, wait, data_len);
3647 	p = (struct wmi_send_mgmt_cmd *) skb->data;
3648 	p->id = cpu_to_le32(id);
3649 	p->freq = cpu_to_le32(freq);
3650 	p->wait = cpu_to_le32(wait);
3651 	p->no_cck = cpu_to_le32(no_cck);
3652 	p->len = cpu_to_le16(data_len);
3653 	memcpy(p->data, data, data_len);
3654 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_MGMT_CMDID,
3655 				   NO_SYNC_WMIFLAG);
3656 }
3657 
3658 int ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id, u32 freq,
3659 				u32 wait, const u8 *data, u16 data_len,
3660 				u32 no_cck)
3661 {
3662 	int status;
3663 	struct ath6kl *ar = wmi->parent_dev;
3664 
3665 	if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
3666 		     ar->fw_capabilities)) {
3667 		/*
3668 		 * If capable of doing P2P mgmt operations using
3669 		 * station interface, send additional information like
3670 		 * supported rates to advertise and xmit rates for
3671 		 * probe requests
3672 		 */
3673 		status = __ath6kl_wmi_send_mgmt_cmd(ar->wmi, if_idx, id, freq,
3674 						    wait, data, data_len,
3675 						    no_cck);
3676 	} else {
3677 		status = ath6kl_wmi_send_action_cmd(ar->wmi, if_idx, id, freq,
3678 						    wait, data, data_len);
3679 	}
3680 
3681 	return status;
3682 }
3683 
3684 int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u8 if_idx, u32 freq,
3685 				       const u8 *dst, const u8 *data,
3686 				       u16 data_len)
3687 {
3688 	struct sk_buff *skb;
3689 	struct wmi_p2p_probe_response_cmd *p;
3690 	size_t cmd_len = sizeof(*p) + data_len;
3691 
3692 	if (data_len == 0)
3693 		cmd_len++; /* work around target minimum length requirement */
3694 
3695 	skb = ath6kl_wmi_get_new_buf(cmd_len);
3696 	if (!skb)
3697 		return -ENOMEM;
3698 
3699 	ath6kl_dbg(ATH6KL_DBG_WMI,
3700 		   "send_probe_response_cmd: freq=%u dst=%pM len=%u\n",
3701 		   freq, dst, data_len);
3702 	p = (struct wmi_p2p_probe_response_cmd *) skb->data;
3703 	p->freq = cpu_to_le32(freq);
3704 	memcpy(p->destination_addr, dst, ETH_ALEN);
3705 	p->len = cpu_to_le16(data_len);
3706 	memcpy(p->data, data, data_len);
3707 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3708 				   WMI_SEND_PROBE_RESPONSE_CMDID,
3709 				   NO_SYNC_WMIFLAG);
3710 }
3711 
3712 int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, u8 if_idx, bool enable)
3713 {
3714 	struct sk_buff *skb;
3715 	struct wmi_probe_req_report_cmd *p;
3716 
3717 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3718 	if (!skb)
3719 		return -ENOMEM;
3720 
3721 	ath6kl_dbg(ATH6KL_DBG_WMI, "probe_report_req_cmd: enable=%u\n",
3722 		   enable);
3723 	p = (struct wmi_probe_req_report_cmd *) skb->data;
3724 	p->enable = enable ? 1 : 0;
3725 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_PROBE_REQ_REPORT_CMDID,
3726 				   NO_SYNC_WMIFLAG);
3727 }
3728 
3729 int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u8 if_idx, u32 info_req_flags)
3730 {
3731 	struct sk_buff *skb;
3732 	struct wmi_get_p2p_info *p;
3733 
3734 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3735 	if (!skb)
3736 		return -ENOMEM;
3737 
3738 	ath6kl_dbg(ATH6KL_DBG_WMI, "info_req_cmd: flags=%x\n",
3739 		   info_req_flags);
3740 	p = (struct wmi_get_p2p_info *) skb->data;
3741 	p->info_req_flags = cpu_to_le32(info_req_flags);
3742 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_GET_P2P_INFO_CMDID,
3743 				   NO_SYNC_WMIFLAG);
3744 }
3745 
3746 int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx)
3747 {
3748 	ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl_cmd\n");
3749 	return ath6kl_wmi_simple_cmd(wmi, if_idx,
3750 				     WMI_CANCEL_REMAIN_ON_CHNL_CMDID);
3751 }
3752 
3753 int ath6kl_wmi_set_inact_period(struct wmi *wmi, u8 if_idx, int inact_timeout)
3754 {
3755 	struct sk_buff *skb;
3756 	struct wmi_set_inact_period_cmd *cmd;
3757 
3758 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3759 	if (!skb)
3760 		return -ENOMEM;
3761 
3762 	cmd = (struct wmi_set_inact_period_cmd *) skb->data;
3763 	cmd->inact_period = cpu_to_le32(inact_timeout);
3764 	cmd->num_null_func = 0;
3765 
3766 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_CONN_INACT_CMDID,
3767 				   NO_SYNC_WMIFLAG);
3768 }
3769 
3770 static void ath6kl_wmi_hb_challenge_resp_event(struct wmi *wmi, u8 *datap,
3771 					       int len)
3772 {
3773 	struct wmix_hb_challenge_resp_cmd *cmd;
3774 
3775 	if (len < sizeof(struct wmix_hb_challenge_resp_cmd))
3776 		return;
3777 
3778 	cmd = (struct wmix_hb_challenge_resp_cmd *) datap;
3779 	ath6kl_recovery_hb_event(wmi->parent_dev,
3780 				 le32_to_cpu(cmd->cookie));
3781 }
3782 
3783 static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb)
3784 {
3785 	struct wmix_cmd_hdr *cmd;
3786 	u32 len;
3787 	u16 id;
3788 	u8 *datap;
3789 	int ret = 0;
3790 
3791 	if (skb->len < sizeof(struct wmix_cmd_hdr)) {
3792 		ath6kl_err("bad packet 1\n");
3793 		return -EINVAL;
3794 	}
3795 
3796 	cmd = (struct wmix_cmd_hdr *) skb->data;
3797 	id = le32_to_cpu(cmd->cmd_id);
3798 
3799 	skb_pull(skb, sizeof(struct wmix_cmd_hdr));
3800 
3801 	datap = skb->data;
3802 	len = skb->len;
3803 
3804 	switch (id) {
3805 	case WMIX_HB_CHALLENGE_RESP_EVENTID:
3806 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event hb challenge resp\n");
3807 		ath6kl_wmi_hb_challenge_resp_event(wmi, datap, len);
3808 		break;
3809 	case WMIX_DBGLOG_EVENTID:
3810 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event dbglog len %d\n", len);
3811 		ath6kl_debug_fwlog_event(wmi->parent_dev, datap, len);
3812 		break;
3813 	default:
3814 		ath6kl_warn("unknown cmd id 0x%x\n", id);
3815 		ret = -EINVAL;
3816 		break;
3817 	}
3818 
3819 	return ret;
3820 }
3821 
3822 static int ath6kl_wmi_roam_tbl_event_rx(struct wmi *wmi, u8 *datap, int len)
3823 {
3824 	return ath6kl_debug_roam_tbl_event(wmi->parent_dev, datap, len);
3825 }
3826 
3827 /* Process interface specific wmi events, caller would free the datap */
3828 static int ath6kl_wmi_proc_events_vif(struct wmi *wmi, u16 if_idx, u16 cmd_id,
3829 					u8 *datap, u32 len)
3830 {
3831 	struct ath6kl_vif *vif;
3832 
3833 	vif = ath6kl_get_vif_by_index(wmi->parent_dev, if_idx);
3834 	if (!vif) {
3835 		ath6kl_dbg(ATH6KL_DBG_WMI,
3836 			   "Wmi event for unavailable vif, vif_index:%d\n",
3837 			    if_idx);
3838 		return -EINVAL;
3839 	}
3840 
3841 	switch (cmd_id) {
3842 	case WMI_CONNECT_EVENTID:
3843 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CONNECT_EVENTID\n");
3844 		return ath6kl_wmi_connect_event_rx(wmi, datap, len, vif);
3845 	case WMI_DISCONNECT_EVENTID:
3846 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DISCONNECT_EVENTID\n");
3847 		return ath6kl_wmi_disconnect_event_rx(wmi, datap, len, vif);
3848 	case WMI_TKIP_MICERR_EVENTID:
3849 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TKIP_MICERR_EVENTID\n");
3850 		return ath6kl_wmi_tkip_micerr_event_rx(wmi, datap, len, vif);
3851 	case WMI_BSSINFO_EVENTID:
3852 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_BSSINFO_EVENTID\n");
3853 		return ath6kl_wmi_bssinfo_event_rx(wmi, datap, len, vif);
3854 	case WMI_NEIGHBOR_REPORT_EVENTID:
3855 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_NEIGHBOR_REPORT_EVENTID\n");
3856 		return ath6kl_wmi_neighbor_report_event_rx(wmi, datap, len,
3857 							   vif);
3858 	case WMI_SCAN_COMPLETE_EVENTID:
3859 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SCAN_COMPLETE_EVENTID\n");
3860 		return ath6kl_wmi_scan_complete_rx(wmi, datap, len, vif);
3861 	case WMI_REPORT_STATISTICS_EVENTID:
3862 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_STATISTICS_EVENTID\n");
3863 		return ath6kl_wmi_stats_event_rx(wmi, datap, len, vif);
3864 	case WMI_CAC_EVENTID:
3865 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CAC_EVENTID\n");
3866 		return ath6kl_wmi_cac_event_rx(wmi, datap, len, vif);
3867 	case WMI_PSPOLL_EVENTID:
3868 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSPOLL_EVENTID\n");
3869 		return ath6kl_wmi_pspoll_event_rx(wmi, datap, len, vif);
3870 	case WMI_DTIMEXPIRY_EVENTID:
3871 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DTIMEXPIRY_EVENTID\n");
3872 		return ath6kl_wmi_dtimexpiry_event_rx(wmi, datap, len, vif);
3873 	case WMI_ADDBA_REQ_EVENTID:
3874 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_REQ_EVENTID\n");
3875 		return ath6kl_wmi_addba_req_event_rx(wmi, datap, len, vif);
3876 	case WMI_DELBA_REQ_EVENTID:
3877 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DELBA_REQ_EVENTID\n");
3878 		return ath6kl_wmi_delba_req_event_rx(wmi, datap, len, vif);
3879 	case WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID:
3880 		ath6kl_dbg(ATH6KL_DBG_WMI,
3881 			   "WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID");
3882 		return ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(wmi, vif);
3883 	case WMI_REMAIN_ON_CHNL_EVENTID:
3884 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REMAIN_ON_CHNL_EVENTID\n");
3885 		return ath6kl_wmi_remain_on_chnl_event_rx(wmi, datap, len, vif);
3886 	case WMI_CANCEL_REMAIN_ON_CHNL_EVENTID:
3887 		ath6kl_dbg(ATH6KL_DBG_WMI,
3888 			   "WMI_CANCEL_REMAIN_ON_CHNL_EVENTID\n");
3889 		return ath6kl_wmi_cancel_remain_on_chnl_event_rx(wmi, datap,
3890 								 len, vif);
3891 	case WMI_TX_STATUS_EVENTID:
3892 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_STATUS_EVENTID\n");
3893 		return ath6kl_wmi_tx_status_event_rx(wmi, datap, len, vif);
3894 	case WMI_RX_PROBE_REQ_EVENTID:
3895 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_PROBE_REQ_EVENTID\n");
3896 		return ath6kl_wmi_rx_probe_req_event_rx(wmi, datap, len, vif);
3897 	case WMI_RX_ACTION_EVENTID:
3898 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_ACTION_EVENTID\n");
3899 		return ath6kl_wmi_rx_action_event_rx(wmi, datap, len, vif);
3900 	case WMI_TXE_NOTIFY_EVENTID:
3901 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TXE_NOTIFY_EVENTID\n");
3902 		return ath6kl_wmi_txe_notify_event_rx(wmi, datap, len, vif);
3903 	default:
3904 		ath6kl_dbg(ATH6KL_DBG_WMI, "unknown cmd id 0x%x\n", cmd_id);
3905 		return -EINVAL;
3906 	}
3907 
3908 	return 0;
3909 }
3910 
3911 static int ath6kl_wmi_proc_events(struct wmi *wmi, struct sk_buff *skb)
3912 {
3913 	struct wmi_cmd_hdr *cmd;
3914 	int ret = 0;
3915 	u32 len;
3916 	u16 id;
3917 	u8 if_idx;
3918 	u8 *datap;
3919 
3920 	cmd = (struct wmi_cmd_hdr *) skb->data;
3921 	id = le16_to_cpu(cmd->cmd_id);
3922 	if_idx = le16_to_cpu(cmd->info1) & WMI_CMD_HDR_IF_ID_MASK;
3923 
3924 	skb_pull(skb, sizeof(struct wmi_cmd_hdr));
3925 	datap = skb->data;
3926 	len = skb->len;
3927 
3928 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi rx id %d len %d\n", id, len);
3929 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi rx ",
3930 			datap, len);
3931 
3932 	switch (id) {
3933 	case WMI_GET_BITRATE_CMDID:
3934 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_BITRATE_CMDID\n");
3935 		ret = ath6kl_wmi_bitrate_reply_rx(wmi, datap, len);
3936 		break;
3937 	case WMI_GET_CHANNEL_LIST_CMDID:
3938 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_CHANNEL_LIST_CMDID\n");
3939 		ret = ath6kl_wmi_ch_list_reply_rx(wmi, datap, len);
3940 		break;
3941 	case WMI_GET_TX_PWR_CMDID:
3942 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_TX_PWR_CMDID\n");
3943 		ret = ath6kl_wmi_tx_pwr_reply_rx(wmi, datap, len);
3944 		break;
3945 	case WMI_READY_EVENTID:
3946 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_READY_EVENTID\n");
3947 		ret = ath6kl_wmi_ready_event_rx(wmi, datap, len);
3948 		break;
3949 	case WMI_PEER_NODE_EVENTID:
3950 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PEER_NODE_EVENTID\n");
3951 		ret = ath6kl_wmi_peer_node_event_rx(wmi, datap, len);
3952 		break;
3953 	case WMI_REGDOMAIN_EVENTID:
3954 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REGDOMAIN_EVENTID\n");
3955 		ath6kl_wmi_regdomain_event(wmi, datap, len);
3956 		break;
3957 	case WMI_PSTREAM_TIMEOUT_EVENTID:
3958 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSTREAM_TIMEOUT_EVENTID\n");
3959 		ret = ath6kl_wmi_pstream_timeout_event_rx(wmi, datap, len);
3960 		break;
3961 	case WMI_CMDERROR_EVENTID:
3962 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CMDERROR_EVENTID\n");
3963 		ret = ath6kl_wmi_error_event_rx(wmi, datap, len);
3964 		break;
3965 	case WMI_RSSI_THRESHOLD_EVENTID:
3966 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RSSI_THRESHOLD_EVENTID\n");
3967 		ret = ath6kl_wmi_rssi_threshold_event_rx(wmi, datap, len);
3968 		break;
3969 	case WMI_ERROR_REPORT_EVENTID:
3970 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ERROR_REPORT_EVENTID\n");
3971 		break;
3972 	case WMI_OPT_RX_FRAME_EVENTID:
3973 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_OPT_RX_FRAME_EVENTID\n");
3974 		/* this event has been deprecated */
3975 		break;
3976 	case WMI_REPORT_ROAM_TBL_EVENTID:
3977 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_TBL_EVENTID\n");
3978 		ret = ath6kl_wmi_roam_tbl_event_rx(wmi, datap, len);
3979 		break;
3980 	case WMI_EXTENSION_EVENTID:
3981 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_EXTENSION_EVENTID\n");
3982 		ret = ath6kl_wmi_control_rx_xtnd(wmi, skb);
3983 		break;
3984 	case WMI_CHANNEL_CHANGE_EVENTID:
3985 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CHANNEL_CHANGE_EVENTID\n");
3986 		break;
3987 	case WMI_REPORT_ROAM_DATA_EVENTID:
3988 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_DATA_EVENTID\n");
3989 		break;
3990 	case WMI_TEST_EVENTID:
3991 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TEST_EVENTID\n");
3992 		ret = ath6kl_wmi_test_rx(wmi, datap, len);
3993 		break;
3994 	case WMI_GET_FIXRATES_CMDID:
3995 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_FIXRATES_CMDID\n");
3996 		ret = ath6kl_wmi_ratemask_reply_rx(wmi, datap, len);
3997 		break;
3998 	case WMI_TX_RETRY_ERR_EVENTID:
3999 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_RETRY_ERR_EVENTID\n");
4000 		break;
4001 	case WMI_SNR_THRESHOLD_EVENTID:
4002 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SNR_THRESHOLD_EVENTID\n");
4003 		ret = ath6kl_wmi_snr_threshold_event_rx(wmi, datap, len);
4004 		break;
4005 	case WMI_LQ_THRESHOLD_EVENTID:
4006 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_LQ_THRESHOLD_EVENTID\n");
4007 		break;
4008 	case WMI_APLIST_EVENTID:
4009 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_APLIST_EVENTID\n");
4010 		ret = ath6kl_wmi_aplist_event_rx(wmi, datap, len);
4011 		break;
4012 	case WMI_GET_KEEPALIVE_CMDID:
4013 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_KEEPALIVE_CMDID\n");
4014 		ret = ath6kl_wmi_keepalive_reply_rx(wmi, datap, len);
4015 		break;
4016 	case WMI_GET_WOW_LIST_EVENTID:
4017 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_WOW_LIST_EVENTID\n");
4018 		break;
4019 	case WMI_GET_PMKID_LIST_EVENTID:
4020 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_PMKID_LIST_EVENTID\n");
4021 		ret = ath6kl_wmi_get_pmkid_list_event_rx(wmi, datap, len);
4022 		break;
4023 	case WMI_SET_PARAMS_REPLY_EVENTID:
4024 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SET_PARAMS_REPLY_EVENTID\n");
4025 		break;
4026 	case WMI_ADDBA_RESP_EVENTID:
4027 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_RESP_EVENTID\n");
4028 		break;
4029 	case WMI_REPORT_BTCOEX_CONFIG_EVENTID:
4030 		ath6kl_dbg(ATH6KL_DBG_WMI,
4031 			   "WMI_REPORT_BTCOEX_CONFIG_EVENTID\n");
4032 		break;
4033 	case WMI_REPORT_BTCOEX_STATS_EVENTID:
4034 		ath6kl_dbg(ATH6KL_DBG_WMI,
4035 			   "WMI_REPORT_BTCOEX_STATS_EVENTID\n");
4036 		break;
4037 	case WMI_TX_COMPLETE_EVENTID:
4038 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_COMPLETE_EVENTID\n");
4039 		ret = ath6kl_wmi_tx_complete_event_rx(datap, len);
4040 		break;
4041 	case WMI_P2P_CAPABILITIES_EVENTID:
4042 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_CAPABILITIES_EVENTID\n");
4043 		ret = ath6kl_wmi_p2p_capabilities_event_rx(datap, len);
4044 		break;
4045 	case WMI_P2P_INFO_EVENTID:
4046 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_INFO_EVENTID\n");
4047 		ret = ath6kl_wmi_p2p_info_event_rx(datap, len);
4048 		break;
4049 	default:
4050 		/* may be the event is interface specific */
4051 		ret = ath6kl_wmi_proc_events_vif(wmi, if_idx, id, datap, len);
4052 		break;
4053 	}
4054 
4055 	dev_kfree_skb(skb);
4056 	return ret;
4057 }
4058 
4059 /* Control Path */
4060 int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb)
4061 {
4062 	if (WARN_ON(skb == NULL))
4063 		return -EINVAL;
4064 
4065 	if (skb->len < sizeof(struct wmi_cmd_hdr)) {
4066 		ath6kl_err("bad packet 1\n");
4067 		dev_kfree_skb(skb);
4068 		return -EINVAL;
4069 	}
4070 
4071 	return ath6kl_wmi_proc_events(wmi, skb);
4072 }
4073 
4074 void ath6kl_wmi_reset(struct wmi *wmi)
4075 {
4076 	spin_lock_bh(&wmi->lock);
4077 
4078 	wmi->fat_pipe_exist = 0;
4079 	memset(wmi->stream_exist_for_ac, 0, sizeof(wmi->stream_exist_for_ac));
4080 
4081 	spin_unlock_bh(&wmi->lock);
4082 }
4083 
4084 void *ath6kl_wmi_init(struct ath6kl *dev)
4085 {
4086 	struct wmi *wmi;
4087 
4088 	wmi = kzalloc(sizeof(struct wmi), GFP_KERNEL);
4089 	if (!wmi)
4090 		return NULL;
4091 
4092 	spin_lock_init(&wmi->lock);
4093 
4094 	wmi->parent_dev = dev;
4095 
4096 	wmi->pwr_mode = REC_POWER;
4097 
4098 	ath6kl_wmi_reset(wmi);
4099 
4100 	return wmi;
4101 }
4102 
4103 void ath6kl_wmi_shutdown(struct wmi *wmi)
4104 {
4105 	if (!wmi)
4106 		return;
4107 
4108 	kfree(wmi->last_mgmt_tx_frame);
4109 	kfree(wmi);
4110 }
4111