xref: /openbmc/linux/drivers/net/wireless/ath/ath6kl/wmi.c (revision b34e08d5)
1 /*
2  * Copyright (c) 2004-2011 Atheros Communications Inc.
3  * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
4  *
5  * Permission to use, copy, modify, and/or distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #include <linux/ip.h>
19 #include <linux/in.h>
20 #include "core.h"
21 #include "debug.h"
22 #include "testmode.h"
23 #include "trace.h"
24 #include "../regd.h"
25 #include "../regd_common.h"
26 
27 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx);
28 
29 static const s32 wmi_rate_tbl[][2] = {
30 	/* {W/O SGI, with SGI} */
31 	{1000, 1000},
32 	{2000, 2000},
33 	{5500, 5500},
34 	{11000, 11000},
35 	{6000, 6000},
36 	{9000, 9000},
37 	{12000, 12000},
38 	{18000, 18000},
39 	{24000, 24000},
40 	{36000, 36000},
41 	{48000, 48000},
42 	{54000, 54000},
43 	{6500, 7200},
44 	{13000, 14400},
45 	{19500, 21700},
46 	{26000, 28900},
47 	{39000, 43300},
48 	{52000, 57800},
49 	{58500, 65000},
50 	{65000, 72200},
51 	{13500, 15000},
52 	{27000, 30000},
53 	{40500, 45000},
54 	{54000, 60000},
55 	{81000, 90000},
56 	{108000, 120000},
57 	{121500, 135000},
58 	{135000, 150000},
59 	{0, 0}
60 };
61 
62 /* 802.1d to AC mapping. Refer pg 57 of WMM-test-plan-v1.2 */
63 static const u8 up_to_ac[] = {
64 	WMM_AC_BE,
65 	WMM_AC_BK,
66 	WMM_AC_BK,
67 	WMM_AC_BE,
68 	WMM_AC_VI,
69 	WMM_AC_VI,
70 	WMM_AC_VO,
71 	WMM_AC_VO,
72 };
73 
74 void ath6kl_wmi_set_control_ep(struct wmi *wmi, enum htc_endpoint_id ep_id)
75 {
76 	if (WARN_ON(ep_id == ENDPOINT_UNUSED || ep_id >= ENDPOINT_MAX))
77 		return;
78 
79 	wmi->ep_id = ep_id;
80 }
81 
82 enum htc_endpoint_id ath6kl_wmi_get_control_ep(struct wmi *wmi)
83 {
84 	return wmi->ep_id;
85 }
86 
87 struct ath6kl_vif *ath6kl_get_vif_by_index(struct ath6kl *ar, u8 if_idx)
88 {
89 	struct ath6kl_vif *vif, *found = NULL;
90 
91 	if (WARN_ON(if_idx > (ar->vif_max - 1)))
92 		return NULL;
93 
94 	/* FIXME: Locking */
95 	spin_lock_bh(&ar->list_lock);
96 	list_for_each_entry(vif, &ar->vif_list, list) {
97 		if (vif->fw_vif_idx == if_idx) {
98 			found = vif;
99 			break;
100 		}
101 	}
102 	spin_unlock_bh(&ar->list_lock);
103 
104 	return found;
105 }
106 
107 /*  Performs DIX to 802.3 encapsulation for transmit packets.
108  *  Assumes the entire DIX header is contigous and that there is
109  *  enough room in the buffer for a 802.3 mac header and LLC+SNAP headers.
110  */
111 int ath6kl_wmi_dix_2_dot3(struct wmi *wmi, struct sk_buff *skb)
112 {
113 	struct ath6kl_llc_snap_hdr *llc_hdr;
114 	struct ethhdr *eth_hdr;
115 	size_t new_len;
116 	__be16 type;
117 	u8 *datap;
118 	u16 size;
119 
120 	if (WARN_ON(skb == NULL))
121 		return -EINVAL;
122 
123 	size = sizeof(struct ath6kl_llc_snap_hdr) + sizeof(struct wmi_data_hdr);
124 	if (skb_headroom(skb) < size)
125 		return -ENOMEM;
126 
127 	eth_hdr = (struct ethhdr *) skb->data;
128 	type = eth_hdr->h_proto;
129 
130 	if (!is_ethertype(be16_to_cpu(type))) {
131 		ath6kl_dbg(ATH6KL_DBG_WMI,
132 			   "%s: pkt is already in 802.3 format\n", __func__);
133 		return 0;
134 	}
135 
136 	new_len = skb->len - sizeof(*eth_hdr) + sizeof(*llc_hdr);
137 
138 	skb_push(skb, sizeof(struct ath6kl_llc_snap_hdr));
139 	datap = skb->data;
140 
141 	eth_hdr->h_proto = cpu_to_be16(new_len);
142 
143 	memcpy(datap, eth_hdr, sizeof(*eth_hdr));
144 
145 	llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap + sizeof(*eth_hdr));
146 	llc_hdr->dsap = 0xAA;
147 	llc_hdr->ssap = 0xAA;
148 	llc_hdr->cntl = 0x03;
149 	llc_hdr->org_code[0] = 0x0;
150 	llc_hdr->org_code[1] = 0x0;
151 	llc_hdr->org_code[2] = 0x0;
152 	llc_hdr->eth_type = type;
153 
154 	return 0;
155 }
156 
157 static int ath6kl_wmi_meta_add(struct wmi *wmi, struct sk_buff *skb,
158 			       u8 *version, void *tx_meta_info)
159 {
160 	struct wmi_tx_meta_v1 *v1;
161 	struct wmi_tx_meta_v2 *v2;
162 
163 	if (WARN_ON(skb == NULL || version == NULL))
164 		return -EINVAL;
165 
166 	switch (*version) {
167 	case WMI_META_VERSION_1:
168 		skb_push(skb, WMI_MAX_TX_META_SZ);
169 		v1 = (struct wmi_tx_meta_v1 *) skb->data;
170 		v1->pkt_id = 0;
171 		v1->rate_plcy_id = 0;
172 		*version = WMI_META_VERSION_1;
173 		break;
174 	case WMI_META_VERSION_2:
175 		skb_push(skb, WMI_MAX_TX_META_SZ);
176 		v2 = (struct wmi_tx_meta_v2 *) skb->data;
177 		memcpy(v2, (struct wmi_tx_meta_v2 *) tx_meta_info,
178 		       sizeof(struct wmi_tx_meta_v2));
179 		break;
180 	}
181 
182 	return 0;
183 }
184 
185 int ath6kl_wmi_data_hdr_add(struct wmi *wmi, struct sk_buff *skb,
186 			    u8 msg_type, u32 flags,
187 			    enum wmi_data_hdr_data_type data_type,
188 			    u8 meta_ver, void *tx_meta_info, u8 if_idx)
189 {
190 	struct wmi_data_hdr *data_hdr;
191 	int ret;
192 
193 	if (WARN_ON(skb == NULL || (if_idx > wmi->parent_dev->vif_max - 1)))
194 		return -EINVAL;
195 
196 	if (tx_meta_info) {
197 		ret = ath6kl_wmi_meta_add(wmi, skb, &meta_ver, tx_meta_info);
198 		if (ret)
199 			return ret;
200 	}
201 
202 	skb_push(skb, sizeof(struct wmi_data_hdr));
203 
204 	data_hdr = (struct wmi_data_hdr *)skb->data;
205 	memset(data_hdr, 0, sizeof(struct wmi_data_hdr));
206 
207 	data_hdr->info = msg_type << WMI_DATA_HDR_MSG_TYPE_SHIFT;
208 	data_hdr->info |= data_type << WMI_DATA_HDR_DATA_TYPE_SHIFT;
209 
210 	if (flags & WMI_DATA_HDR_FLAGS_MORE)
211 		data_hdr->info |= WMI_DATA_HDR_MORE;
212 
213 	if (flags & WMI_DATA_HDR_FLAGS_EOSP)
214 		data_hdr->info3 |= cpu_to_le16(WMI_DATA_HDR_EOSP);
215 
216 	data_hdr->info2 |= cpu_to_le16(meta_ver << WMI_DATA_HDR_META_SHIFT);
217 	data_hdr->info3 |= cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
218 
219 	return 0;
220 }
221 
222 u8 ath6kl_wmi_determine_user_priority(u8 *pkt, u32 layer2_pri)
223 {
224 	struct iphdr *ip_hdr = (struct iphdr *) pkt;
225 	u8 ip_pri;
226 
227 	/*
228 	 * Determine IPTOS priority
229 	 *
230 	 * IP-TOS - 8bits
231 	 *          : DSCP(6-bits) ECN(2-bits)
232 	 *          : DSCP - P2 P1 P0 X X X
233 	 * where (P2 P1 P0) form 802.1D
234 	 */
235 	ip_pri = ip_hdr->tos >> 5;
236 	ip_pri &= 0x7;
237 
238 	if ((layer2_pri & 0x7) > ip_pri)
239 		return (u8) layer2_pri & 0x7;
240 	else
241 		return ip_pri;
242 }
243 
244 u8 ath6kl_wmi_get_traffic_class(u8 user_priority)
245 {
246 	return  up_to_ac[user_priority & 0x7];
247 }
248 
249 int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, u8 if_idx,
250 				       struct sk_buff *skb,
251 				       u32 layer2_priority, bool wmm_enabled,
252 				       u8 *ac)
253 {
254 	struct wmi_data_hdr *data_hdr;
255 	struct ath6kl_llc_snap_hdr *llc_hdr;
256 	struct wmi_create_pstream_cmd cmd;
257 	u32 meta_size, hdr_size;
258 	u16 ip_type = IP_ETHERTYPE;
259 	u8 stream_exist, usr_pri;
260 	u8 traffic_class = WMM_AC_BE;
261 	u8 *datap;
262 
263 	if (WARN_ON(skb == NULL))
264 		return -EINVAL;
265 
266 	datap = skb->data;
267 	data_hdr = (struct wmi_data_hdr *) datap;
268 
269 	meta_size = ((le16_to_cpu(data_hdr->info2) >> WMI_DATA_HDR_META_SHIFT) &
270 		     WMI_DATA_HDR_META_MASK) ? WMI_MAX_TX_META_SZ : 0;
271 
272 	if (!wmm_enabled) {
273 		/* If WMM is disabled all traffic goes as BE traffic */
274 		usr_pri = 0;
275 	} else {
276 		hdr_size = sizeof(struct ethhdr);
277 
278 		llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap +
279 							 sizeof(struct
280 								wmi_data_hdr) +
281 							 meta_size + hdr_size);
282 
283 		if (llc_hdr->eth_type == htons(ip_type)) {
284 			/*
285 			 * Extract the endpoint info from the TOS field
286 			 * in the IP header.
287 			 */
288 			usr_pri =
289 			   ath6kl_wmi_determine_user_priority(((u8 *) llc_hdr) +
290 					sizeof(struct ath6kl_llc_snap_hdr),
291 					layer2_priority);
292 		} else
293 			usr_pri = layer2_priority & 0x7;
294 
295 		/*
296 		 * Queue the EAPOL frames in the same WMM_AC_VO queue
297 		 * as that of management frames.
298 		 */
299 		if (skb->protocol == cpu_to_be16(ETH_P_PAE))
300 			usr_pri = WMI_VOICE_USER_PRIORITY;
301 	}
302 
303 	/*
304 	 * workaround for WMM S5
305 	 *
306 	 * FIXME: wmi->traffic_class is always 100 so this test doesn't
307 	 * make sense
308 	 */
309 	if ((wmi->traffic_class == WMM_AC_VI) &&
310 	    ((usr_pri == 5) || (usr_pri == 4)))
311 		usr_pri = 1;
312 
313 	/* Convert user priority to traffic class */
314 	traffic_class = up_to_ac[usr_pri & 0x7];
315 
316 	wmi_data_hdr_set_up(data_hdr, usr_pri);
317 
318 	spin_lock_bh(&wmi->lock);
319 	stream_exist = wmi->fat_pipe_exist;
320 	spin_unlock_bh(&wmi->lock);
321 
322 	if (!(stream_exist & (1 << traffic_class))) {
323 		memset(&cmd, 0, sizeof(cmd));
324 		cmd.traffic_class = traffic_class;
325 		cmd.user_pri = usr_pri;
326 		cmd.inactivity_int =
327 			cpu_to_le32(WMI_IMPLICIT_PSTREAM_INACTIVITY_INT);
328 		/* Implicit streams are created with TSID 0xFF */
329 		cmd.tsid = WMI_IMPLICIT_PSTREAM;
330 		ath6kl_wmi_create_pstream_cmd(wmi, if_idx, &cmd);
331 	}
332 
333 	*ac = traffic_class;
334 
335 	return 0;
336 }
337 
338 int ath6kl_wmi_dot11_hdr_remove(struct wmi *wmi, struct sk_buff *skb)
339 {
340 	struct ieee80211_hdr_3addr *pwh, wh;
341 	struct ath6kl_llc_snap_hdr *llc_hdr;
342 	struct ethhdr eth_hdr;
343 	u32 hdr_size;
344 	u8 *datap;
345 	__le16 sub_type;
346 
347 	if (WARN_ON(skb == NULL))
348 		return -EINVAL;
349 
350 	datap = skb->data;
351 	pwh = (struct ieee80211_hdr_3addr *) datap;
352 
353 	sub_type = pwh->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE);
354 
355 	memcpy((u8 *) &wh, datap, sizeof(struct ieee80211_hdr_3addr));
356 
357 	/* Strip off the 802.11 header */
358 	if (sub_type == cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
359 		hdr_size = roundup(sizeof(struct ieee80211_qos_hdr),
360 				   sizeof(u32));
361 		skb_pull(skb, hdr_size);
362 	} else if (sub_type == cpu_to_le16(IEEE80211_STYPE_DATA))
363 		skb_pull(skb, sizeof(struct ieee80211_hdr_3addr));
364 
365 	datap = skb->data;
366 	llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap);
367 
368 	memset(&eth_hdr, 0, sizeof(eth_hdr));
369 	eth_hdr.h_proto = llc_hdr->eth_type;
370 
371 	switch ((le16_to_cpu(wh.frame_control)) &
372 		(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
373 	case 0:
374 		memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
375 		memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
376 		break;
377 	case IEEE80211_FCTL_TODS:
378 		memcpy(eth_hdr.h_dest, wh.addr3, ETH_ALEN);
379 		memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
380 		break;
381 	case IEEE80211_FCTL_FROMDS:
382 		memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
383 		memcpy(eth_hdr.h_source, wh.addr3, ETH_ALEN);
384 		break;
385 	case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS:
386 		break;
387 	}
388 
389 	skb_pull(skb, sizeof(struct ath6kl_llc_snap_hdr));
390 	skb_push(skb, sizeof(eth_hdr));
391 
392 	datap = skb->data;
393 
394 	memcpy(datap, &eth_hdr, sizeof(eth_hdr));
395 
396 	return 0;
397 }
398 
399 /*
400  * Performs 802.3 to DIX encapsulation for received packets.
401  * Assumes the entire 802.3 header is contigous.
402  */
403 int ath6kl_wmi_dot3_2_dix(struct sk_buff *skb)
404 {
405 	struct ath6kl_llc_snap_hdr *llc_hdr;
406 	struct ethhdr eth_hdr;
407 	u8 *datap;
408 
409 	if (WARN_ON(skb == NULL))
410 		return -EINVAL;
411 
412 	datap = skb->data;
413 
414 	memcpy(&eth_hdr, datap, sizeof(eth_hdr));
415 
416 	llc_hdr = (struct ath6kl_llc_snap_hdr *) (datap + sizeof(eth_hdr));
417 	eth_hdr.h_proto = llc_hdr->eth_type;
418 
419 	skb_pull(skb, sizeof(struct ath6kl_llc_snap_hdr));
420 	datap = skb->data;
421 
422 	memcpy(datap, &eth_hdr, sizeof(eth_hdr));
423 
424 	return 0;
425 }
426 
427 static int ath6kl_wmi_tx_complete_event_rx(u8 *datap, int len)
428 {
429 	struct tx_complete_msg_v1 *msg_v1;
430 	struct wmi_tx_complete_event *evt;
431 	int index;
432 	u16 size;
433 
434 	evt = (struct wmi_tx_complete_event *) datap;
435 
436 	ath6kl_dbg(ATH6KL_DBG_WMI, "comp: %d %d %d\n",
437 		   evt->num_msg, evt->msg_len, evt->msg_type);
438 
439 	for (index = 0; index < evt->num_msg; index++) {
440 		size = sizeof(struct wmi_tx_complete_event) +
441 		    (index * sizeof(struct tx_complete_msg_v1));
442 		msg_v1 = (struct tx_complete_msg_v1 *)(datap + size);
443 
444 		ath6kl_dbg(ATH6KL_DBG_WMI, "msg: %d %d %d %d\n",
445 			   msg_v1->status, msg_v1->pkt_id,
446 			   msg_v1->rate_idx, msg_v1->ack_failures);
447 	}
448 
449 	return 0;
450 }
451 
452 static int ath6kl_wmi_remain_on_chnl_event_rx(struct wmi *wmi, u8 *datap,
453 					      int len, struct ath6kl_vif *vif)
454 {
455 	struct wmi_remain_on_chnl_event *ev;
456 	u32 freq;
457 	u32 dur;
458 	struct ieee80211_channel *chan;
459 	struct ath6kl *ar = wmi->parent_dev;
460 	u32 id;
461 
462 	if (len < sizeof(*ev))
463 		return -EINVAL;
464 
465 	ev = (struct wmi_remain_on_chnl_event *) datap;
466 	freq = le32_to_cpu(ev->freq);
467 	dur = le32_to_cpu(ev->duration);
468 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl: freq=%u dur=%u\n",
469 		   freq, dur);
470 	chan = ieee80211_get_channel(ar->wiphy, freq);
471 	if (!chan) {
472 		ath6kl_dbg(ATH6KL_DBG_WMI,
473 			   "remain_on_chnl: Unknown channel (freq=%u)\n",
474 			   freq);
475 		return -EINVAL;
476 	}
477 	id = vif->last_roc_id;
478 	cfg80211_ready_on_channel(&vif->wdev, id, chan,
479 				  dur, GFP_ATOMIC);
480 
481 	return 0;
482 }
483 
484 static int ath6kl_wmi_cancel_remain_on_chnl_event_rx(struct wmi *wmi,
485 						     u8 *datap, int len,
486 						     struct ath6kl_vif *vif)
487 {
488 	struct wmi_cancel_remain_on_chnl_event *ev;
489 	u32 freq;
490 	u32 dur;
491 	struct ieee80211_channel *chan;
492 	struct ath6kl *ar = wmi->parent_dev;
493 	u32 id;
494 
495 	if (len < sizeof(*ev))
496 		return -EINVAL;
497 
498 	ev = (struct wmi_cancel_remain_on_chnl_event *) datap;
499 	freq = le32_to_cpu(ev->freq);
500 	dur = le32_to_cpu(ev->duration);
501 	ath6kl_dbg(ATH6KL_DBG_WMI,
502 		   "cancel_remain_on_chnl: freq=%u dur=%u status=%u\n",
503 		   freq, dur, ev->status);
504 	chan = ieee80211_get_channel(ar->wiphy, freq);
505 	if (!chan) {
506 		ath6kl_dbg(ATH6KL_DBG_WMI,
507 			   "cancel_remain_on_chnl: Unknown channel (freq=%u)\n",
508 			   freq);
509 		return -EINVAL;
510 	}
511 	if (vif->last_cancel_roc_id &&
512 	    vif->last_cancel_roc_id + 1 == vif->last_roc_id)
513 		id = vif->last_cancel_roc_id; /* event for cancel command */
514 	else
515 		id = vif->last_roc_id; /* timeout on uncanceled r-o-c */
516 	vif->last_cancel_roc_id = 0;
517 	cfg80211_remain_on_channel_expired(&vif->wdev, id, chan, 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, ev->data, dlen, 0,
572 				 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, ev->data, dlen, 0, GFP_ATOMIC);
612 
613 	return 0;
614 }
615 
616 static int ath6kl_wmi_p2p_info_event_rx(u8 *datap, int len)
617 {
618 	struct wmi_p2p_info_event *ev;
619 	u32 flags;
620 	u16 dlen;
621 
622 	if (len < sizeof(*ev))
623 		return -EINVAL;
624 
625 	ev = (struct wmi_p2p_info_event *) datap;
626 	flags = le32_to_cpu(ev->info_req_flags);
627 	dlen = le16_to_cpu(ev->len);
628 	ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: flags=%x len=%d\n", flags, dlen);
629 
630 	if (flags & P2P_FLAG_CAPABILITIES_REQ) {
631 		struct wmi_p2p_capabilities *cap;
632 		if (dlen < sizeof(*cap))
633 			return -EINVAL;
634 		cap = (struct wmi_p2p_capabilities *) ev->data;
635 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: GO Power Save = %d\n",
636 			   cap->go_power_save);
637 	}
638 
639 	if (flags & P2P_FLAG_MACADDR_REQ) {
640 		struct wmi_p2p_macaddr *mac;
641 		if (dlen < sizeof(*mac))
642 			return -EINVAL;
643 		mac = (struct wmi_p2p_macaddr *) ev->data;
644 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: MAC Address = %pM\n",
645 			   mac->mac_addr);
646 	}
647 
648 	if (flags & P2P_FLAG_HMODEL_REQ) {
649 		struct wmi_p2p_hmodel *mod;
650 		if (dlen < sizeof(*mod))
651 			return -EINVAL;
652 		mod = (struct wmi_p2p_hmodel *) ev->data;
653 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: P2P Model = %d (%s)\n",
654 			   mod->p2p_model,
655 			   mod->p2p_model ? "host" : "firmware");
656 	}
657 	return 0;
658 }
659 
660 static inline struct sk_buff *ath6kl_wmi_get_new_buf(u32 size)
661 {
662 	struct sk_buff *skb;
663 
664 	skb = ath6kl_buf_alloc(size);
665 	if (!skb)
666 		return NULL;
667 
668 	skb_put(skb, size);
669 	if (size)
670 		memset(skb->data, 0, size);
671 
672 	return skb;
673 }
674 
675 /* Send a "simple" wmi command -- one with no arguments */
676 static int ath6kl_wmi_simple_cmd(struct wmi *wmi, u8 if_idx,
677 				 enum wmi_cmd_id cmd_id)
678 {
679 	struct sk_buff *skb;
680 	int ret;
681 
682 	skb = ath6kl_wmi_get_new_buf(0);
683 	if (!skb)
684 		return -ENOMEM;
685 
686 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, cmd_id, NO_SYNC_WMIFLAG);
687 
688 	return ret;
689 }
690 
691 static int ath6kl_wmi_ready_event_rx(struct wmi *wmi, u8 *datap, int len)
692 {
693 	struct wmi_ready_event_2 *ev = (struct wmi_ready_event_2 *) datap;
694 
695 	if (len < sizeof(struct wmi_ready_event_2))
696 		return -EINVAL;
697 
698 	ath6kl_ready_event(wmi->parent_dev, ev->mac_addr,
699 			   le32_to_cpu(ev->sw_version),
700 			   le32_to_cpu(ev->abi_version), ev->phy_cap);
701 
702 	return 0;
703 }
704 
705 /*
706  * Mechanism to modify the roaming behavior in the firmware. The lower rssi
707  * at which the station has to roam can be passed with
708  * WMI_SET_LRSSI_SCAN_PARAMS. Subtract 96 from RSSI to get the signal level
709  * in dBm.
710  */
711 int ath6kl_wmi_set_roam_lrssi_cmd(struct wmi *wmi, u8 lrssi)
712 {
713 	struct sk_buff *skb;
714 	struct roam_ctrl_cmd *cmd;
715 
716 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
717 	if (!skb)
718 		return -ENOMEM;
719 
720 	cmd = (struct roam_ctrl_cmd *) skb->data;
721 
722 	cmd->info.params.lrssi_scan_period = cpu_to_le16(DEF_LRSSI_SCAN_PERIOD);
723 	cmd->info.params.lrssi_scan_threshold = a_cpu_to_sle16(lrssi +
724 						       DEF_SCAN_FOR_ROAM_INTVL);
725 	cmd->info.params.lrssi_roam_threshold = a_cpu_to_sle16(lrssi);
726 	cmd->info.params.roam_rssi_floor = DEF_LRSSI_ROAM_FLOOR;
727 	cmd->roam_ctrl = WMI_SET_LRSSI_SCAN_PARAMS;
728 
729 	ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
730 			    NO_SYNC_WMIFLAG);
731 
732 	return 0;
733 }
734 
735 int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid)
736 {
737 	struct sk_buff *skb;
738 	struct roam_ctrl_cmd *cmd;
739 
740 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
741 	if (!skb)
742 		return -ENOMEM;
743 
744 	cmd = (struct roam_ctrl_cmd *) skb->data;
745 
746 	memcpy(cmd->info.bssid, bssid, ETH_ALEN);
747 	cmd->roam_ctrl = WMI_FORCE_ROAM;
748 
749 	ath6kl_dbg(ATH6KL_DBG_WMI, "force roam to %pM\n", bssid);
750 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
751 				   NO_SYNC_WMIFLAG);
752 }
753 
754 int ath6kl_wmi_ap_set_beacon_intvl_cmd(struct wmi *wmi, u8 if_idx,
755 				       u32 beacon_intvl)
756 {
757 	struct sk_buff *skb;
758 	struct set_beacon_int_cmd *cmd;
759 
760 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
761 	if (!skb)
762 		return -ENOMEM;
763 
764 	cmd = (struct set_beacon_int_cmd *) skb->data;
765 
766 	cmd->beacon_intvl = cpu_to_le32(beacon_intvl);
767 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
768 				   WMI_SET_BEACON_INT_CMDID, NO_SYNC_WMIFLAG);
769 }
770 
771 int ath6kl_wmi_ap_set_dtim_cmd(struct wmi *wmi, u8 if_idx, u32 dtim_period)
772 {
773 	struct sk_buff *skb;
774 	struct set_dtim_cmd *cmd;
775 
776 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
777 	if (!skb)
778 		return -ENOMEM;
779 
780 	cmd = (struct set_dtim_cmd *) skb->data;
781 
782 	cmd->dtim_period = cpu_to_le32(dtim_period);
783 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
784 				   WMI_AP_SET_DTIM_CMDID, NO_SYNC_WMIFLAG);
785 }
786 
787 int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode)
788 {
789 	struct sk_buff *skb;
790 	struct roam_ctrl_cmd *cmd;
791 
792 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
793 	if (!skb)
794 		return -ENOMEM;
795 
796 	cmd = (struct roam_ctrl_cmd *) skb->data;
797 
798 	cmd->info.roam_mode = mode;
799 	cmd->roam_ctrl = WMI_SET_ROAM_MODE;
800 
801 	ath6kl_dbg(ATH6KL_DBG_WMI, "set roam mode %d\n", mode);
802 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
803 				   NO_SYNC_WMIFLAG);
804 }
805 
806 static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len,
807 				       struct ath6kl_vif *vif)
808 {
809 	struct wmi_connect_event *ev;
810 	u8 *pie, *peie;
811 
812 	if (len < sizeof(struct wmi_connect_event))
813 		return -EINVAL;
814 
815 	ev = (struct wmi_connect_event *) datap;
816 
817 	if (vif->nw_type == AP_NETWORK) {
818 		/* AP mode start/STA connected event */
819 		struct net_device *dev = vif->ndev;
820 		if (memcmp(dev->dev_addr, ev->u.ap_bss.bssid, ETH_ALEN) == 0) {
821 			ath6kl_dbg(ATH6KL_DBG_WMI,
822 				   "%s: freq %d bssid %pM (AP started)\n",
823 				   __func__, le16_to_cpu(ev->u.ap_bss.ch),
824 				   ev->u.ap_bss.bssid);
825 			ath6kl_connect_ap_mode_bss(
826 				vif, le16_to_cpu(ev->u.ap_bss.ch));
827 		} else {
828 			ath6kl_dbg(ATH6KL_DBG_WMI,
829 				   "%s: aid %u mac_addr %pM auth=%u keymgmt=%u cipher=%u apsd_info=%u (STA connected)\n",
830 				   __func__, ev->u.ap_sta.aid,
831 				   ev->u.ap_sta.mac_addr,
832 				   ev->u.ap_sta.auth,
833 				   ev->u.ap_sta.keymgmt,
834 				   le16_to_cpu(ev->u.ap_sta.cipher),
835 				   ev->u.ap_sta.apsd_info);
836 
837 			ath6kl_connect_ap_mode_sta(
838 				vif, ev->u.ap_sta.aid, ev->u.ap_sta.mac_addr,
839 				ev->u.ap_sta.keymgmt,
840 				le16_to_cpu(ev->u.ap_sta.cipher),
841 				ev->u.ap_sta.auth, ev->assoc_req_len,
842 				ev->assoc_info + ev->beacon_ie_len,
843 				ev->u.ap_sta.apsd_info);
844 		}
845 		return 0;
846 	}
847 
848 	/* STA/IBSS mode connection event */
849 
850 	ath6kl_dbg(ATH6KL_DBG_WMI,
851 		   "wmi event connect freq %d bssid %pM listen_intvl %d beacon_intvl %d type %d\n",
852 		   le16_to_cpu(ev->u.sta.ch), ev->u.sta.bssid,
853 		   le16_to_cpu(ev->u.sta.listen_intvl),
854 		   le16_to_cpu(ev->u.sta.beacon_intvl),
855 		   le32_to_cpu(ev->u.sta.nw_type));
856 
857 	/* Start of assoc rsp IEs */
858 	pie = ev->assoc_info + ev->beacon_ie_len +
859 	      ev->assoc_req_len + (sizeof(u16) * 3); /* capinfo, status, aid */
860 
861 	/* End of assoc rsp IEs */
862 	peie = ev->assoc_info + ev->beacon_ie_len + ev->assoc_req_len +
863 	    ev->assoc_resp_len;
864 
865 	while (pie < peie) {
866 		switch (*pie) {
867 		case WLAN_EID_VENDOR_SPECIFIC:
868 			if (pie[1] > 3 && pie[2] == 0x00 && pie[3] == 0x50 &&
869 			    pie[4] == 0xf2 && pie[5] == WMM_OUI_TYPE) {
870 				/* WMM OUT (00:50:F2) */
871 				if (pie[1] > 5 &&
872 				    pie[6] == WMM_PARAM_OUI_SUBTYPE)
873 					wmi->is_wmm_enabled = true;
874 			}
875 			break;
876 		}
877 
878 		if (wmi->is_wmm_enabled)
879 			break;
880 
881 		pie += pie[1] + 2;
882 	}
883 
884 	ath6kl_connect_event(vif, le16_to_cpu(ev->u.sta.ch),
885 			     ev->u.sta.bssid,
886 			     le16_to_cpu(ev->u.sta.listen_intvl),
887 			     le16_to_cpu(ev->u.sta.beacon_intvl),
888 			     le32_to_cpu(ev->u.sta.nw_type),
889 			     ev->beacon_ie_len, ev->assoc_req_len,
890 			     ev->assoc_resp_len, ev->assoc_info);
891 
892 	return 0;
893 }
894 
895 static struct country_code_to_enum_rd *
896 ath6kl_regd_find_country(u16 countryCode)
897 {
898 	int i;
899 
900 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
901 		if (allCountries[i].countryCode == countryCode)
902 			return &allCountries[i];
903 	}
904 
905 	return NULL;
906 }
907 
908 static struct reg_dmn_pair_mapping *
909 ath6kl_get_regpair(u16 regdmn)
910 {
911 	int i;
912 
913 	if (regdmn == NO_ENUMRD)
914 		return NULL;
915 
916 	for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) {
917 		if (regDomainPairs[i].reg_domain == regdmn)
918 			return &regDomainPairs[i];
919 	}
920 
921 	return NULL;
922 }
923 
924 static struct country_code_to_enum_rd *
925 ath6kl_regd_find_country_by_rd(u16 regdmn)
926 {
927 	int i;
928 
929 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
930 		if (allCountries[i].regDmnEnum == regdmn)
931 			return &allCountries[i];
932 	}
933 
934 	return NULL;
935 }
936 
937 static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len)
938 {
939 
940 	struct ath6kl_wmi_regdomain *ev;
941 	struct country_code_to_enum_rd *country = NULL;
942 	struct reg_dmn_pair_mapping *regpair = NULL;
943 	char alpha2[2];
944 	u32 reg_code;
945 
946 	ev = (struct ath6kl_wmi_regdomain *) datap;
947 	reg_code = le32_to_cpu(ev->reg_code);
948 
949 	if ((reg_code >> ATH6KL_COUNTRY_RD_SHIFT) & COUNTRY_ERD_FLAG)
950 		country = ath6kl_regd_find_country((u16) reg_code);
951 	else if (!(((u16) reg_code & WORLD_SKU_MASK) == WORLD_SKU_PREFIX)) {
952 
953 		regpair = ath6kl_get_regpair((u16) reg_code);
954 		country = ath6kl_regd_find_country_by_rd((u16) reg_code);
955 		if (regpair)
956 			ath6kl_dbg(ATH6KL_DBG_WMI, "Regpair used: 0x%0x\n",
957 				   regpair->reg_domain);
958 		else
959 			ath6kl_warn("Regpair not found reg_code 0x%0x\n",
960 				    reg_code);
961 	}
962 
963 	if (country && wmi->parent_dev->wiphy_registered) {
964 		alpha2[0] = country->isoName[0];
965 		alpha2[1] = country->isoName[1];
966 
967 		regulatory_hint(wmi->parent_dev->wiphy, alpha2);
968 
969 		ath6kl_dbg(ATH6KL_DBG_WMI, "Country alpha2 being used: %c%c\n",
970 			   alpha2[0], alpha2[1]);
971 	}
972 }
973 
974 static int ath6kl_wmi_disconnect_event_rx(struct wmi *wmi, u8 *datap, int len,
975 					  struct ath6kl_vif *vif)
976 {
977 	struct wmi_disconnect_event *ev;
978 	wmi->traffic_class = 100;
979 
980 	if (len < sizeof(struct wmi_disconnect_event))
981 		return -EINVAL;
982 
983 	ev = (struct wmi_disconnect_event *) datap;
984 
985 	ath6kl_dbg(ATH6KL_DBG_WMI,
986 		   "wmi event disconnect proto_reason %d bssid %pM wmi_reason %d assoc_resp_len %d\n",
987 		   le16_to_cpu(ev->proto_reason_status), ev->bssid,
988 		   ev->disconn_reason, ev->assoc_resp_len);
989 
990 	wmi->is_wmm_enabled = false;
991 
992 	ath6kl_disconnect_event(vif, ev->disconn_reason,
993 				ev->bssid, ev->assoc_resp_len, ev->assoc_info,
994 				le16_to_cpu(ev->proto_reason_status));
995 
996 	return 0;
997 }
998 
999 static int ath6kl_wmi_peer_node_event_rx(struct wmi *wmi, u8 *datap, int len)
1000 {
1001 	struct wmi_peer_node_event *ev;
1002 
1003 	if (len < sizeof(struct wmi_peer_node_event))
1004 		return -EINVAL;
1005 
1006 	ev = (struct wmi_peer_node_event *) datap;
1007 
1008 	if (ev->event_code == PEER_NODE_JOIN_EVENT)
1009 		ath6kl_dbg(ATH6KL_DBG_WMI, "joined node with mac addr: %pM\n",
1010 			   ev->peer_mac_addr);
1011 	else if (ev->event_code == PEER_NODE_LEAVE_EVENT)
1012 		ath6kl_dbg(ATH6KL_DBG_WMI, "left node with mac addr: %pM\n",
1013 			   ev->peer_mac_addr);
1014 
1015 	return 0;
1016 }
1017 
1018 static int ath6kl_wmi_tkip_micerr_event_rx(struct wmi *wmi, u8 *datap, int len,
1019 					   struct ath6kl_vif *vif)
1020 {
1021 	struct wmi_tkip_micerr_event *ev;
1022 
1023 	if (len < sizeof(struct wmi_tkip_micerr_event))
1024 		return -EINVAL;
1025 
1026 	ev = (struct wmi_tkip_micerr_event *) datap;
1027 
1028 	ath6kl_tkip_micerr_event(vif, ev->key_id, ev->is_mcast);
1029 
1030 	return 0;
1031 }
1032 
1033 void ath6kl_wmi_sscan_timer(unsigned long ptr)
1034 {
1035 	struct ath6kl_vif *vif = (struct ath6kl_vif *) ptr;
1036 
1037 	cfg80211_sched_scan_results(vif->ar->wiphy);
1038 }
1039 
1040 static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len,
1041 				       struct ath6kl_vif *vif)
1042 {
1043 	struct wmi_bss_info_hdr2 *bih;
1044 	u8 *buf;
1045 	struct ieee80211_channel *channel;
1046 	struct ath6kl *ar = wmi->parent_dev;
1047 	struct ieee80211_mgmt *mgmt;
1048 	struct cfg80211_bss *bss;
1049 
1050 	if (len <= sizeof(struct wmi_bss_info_hdr2))
1051 		return -EINVAL;
1052 
1053 	bih = (struct wmi_bss_info_hdr2 *) datap;
1054 	buf = datap + sizeof(struct wmi_bss_info_hdr2);
1055 	len -= sizeof(struct wmi_bss_info_hdr2);
1056 
1057 	ath6kl_dbg(ATH6KL_DBG_WMI,
1058 		   "bss info evt - ch %u, snr %d, rssi %d, bssid \"%pM\" "
1059 		   "frame_type=%d\n",
1060 		   bih->ch, bih->snr, bih->snr - 95, bih->bssid,
1061 		   bih->frame_type);
1062 
1063 	if (bih->frame_type != BEACON_FTYPE &&
1064 	    bih->frame_type != PROBERESP_FTYPE)
1065 		return 0; /* Only update BSS table for now */
1066 
1067 	if (bih->frame_type == BEACON_FTYPE &&
1068 	    test_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags)) {
1069 		clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
1070 		ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1071 					 NONE_BSS_FILTER, 0);
1072 	}
1073 
1074 	channel = ieee80211_get_channel(ar->wiphy, le16_to_cpu(bih->ch));
1075 	if (channel == NULL)
1076 		return -EINVAL;
1077 
1078 	if (len < 8 + 2 + 2)
1079 		return -EINVAL;
1080 
1081 	if (bih->frame_type == BEACON_FTYPE &&
1082 	    test_bit(CONNECTED, &vif->flags) &&
1083 	    memcmp(bih->bssid, vif->bssid, ETH_ALEN) == 0) {
1084 		const u8 *tim;
1085 		tim = cfg80211_find_ie(WLAN_EID_TIM, buf + 8 + 2 + 2,
1086 				       len - 8 - 2 - 2);
1087 		if (tim && tim[1] >= 2) {
1088 			vif->assoc_bss_dtim_period = tim[3];
1089 			set_bit(DTIM_PERIOD_AVAIL, &vif->flags);
1090 		}
1091 	}
1092 
1093 	/*
1094 	 * In theory, use of cfg80211_inform_bss() would be more natural here
1095 	 * since we do not have the full frame. However, at least for now,
1096 	 * cfg80211 can only distinguish Beacon and Probe Response frames from
1097 	 * each other when using cfg80211_inform_bss_frame(), so let's build a
1098 	 * fake IEEE 802.11 header to be able to take benefit of this.
1099 	 */
1100 	mgmt = kmalloc(24 + len, GFP_ATOMIC);
1101 	if (mgmt == NULL)
1102 		return -EINVAL;
1103 
1104 	if (bih->frame_type == BEACON_FTYPE) {
1105 		mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1106 						  IEEE80211_STYPE_BEACON);
1107 		memset(mgmt->da, 0xff, ETH_ALEN);
1108 	} else {
1109 		struct net_device *dev = vif->ndev;
1110 
1111 		mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1112 						  IEEE80211_STYPE_PROBE_RESP);
1113 		memcpy(mgmt->da, dev->dev_addr, ETH_ALEN);
1114 	}
1115 	mgmt->duration = cpu_to_le16(0);
1116 	memcpy(mgmt->sa, bih->bssid, ETH_ALEN);
1117 	memcpy(mgmt->bssid, bih->bssid, ETH_ALEN);
1118 	mgmt->seq_ctrl = cpu_to_le16(0);
1119 
1120 	memcpy(&mgmt->u.beacon, buf, len);
1121 
1122 	bss = cfg80211_inform_bss_frame(ar->wiphy, channel, mgmt,
1123 					24 + len, (bih->snr - 95) * 100,
1124 					GFP_ATOMIC);
1125 	kfree(mgmt);
1126 	if (bss == NULL)
1127 		return -ENOMEM;
1128 	cfg80211_put_bss(ar->wiphy, bss);
1129 
1130 	/*
1131 	 * Firmware doesn't return any event when scheduled scan has
1132 	 * finished, so we need to use a timer to find out when there are
1133 	 * no more results.
1134 	 *
1135 	 * The timer is started from the first bss info received, otherwise
1136 	 * the timer would not ever fire if the scan interval is short
1137 	 * enough.
1138 	 */
1139 	if (test_bit(SCHED_SCANNING, &vif->flags) &&
1140 	    !timer_pending(&vif->sched_scan_timer)) {
1141 		mod_timer(&vif->sched_scan_timer, jiffies +
1142 			  msecs_to_jiffies(ATH6KL_SCHED_SCAN_RESULT_DELAY));
1143 	}
1144 
1145 	return 0;
1146 }
1147 
1148 /* Inactivity timeout of a fatpipe(pstream) at the target */
1149 static int ath6kl_wmi_pstream_timeout_event_rx(struct wmi *wmi, u8 *datap,
1150 					       int len)
1151 {
1152 	struct wmi_pstream_timeout_event *ev;
1153 
1154 	if (len < sizeof(struct wmi_pstream_timeout_event))
1155 		return -EINVAL;
1156 
1157 	ev = (struct wmi_pstream_timeout_event *) datap;
1158 
1159 	/*
1160 	 * When the pstream (fat pipe == AC) timesout, it means there were
1161 	 * no thinStreams within this pstream & it got implicitly created
1162 	 * due to data flow on this AC. We start the inactivity timer only
1163 	 * for implicitly created pstream. Just reset the host state.
1164 	 */
1165 	spin_lock_bh(&wmi->lock);
1166 	wmi->stream_exist_for_ac[ev->traffic_class] = 0;
1167 	wmi->fat_pipe_exist &= ~(1 << ev->traffic_class);
1168 	spin_unlock_bh(&wmi->lock);
1169 
1170 	/* Indicate inactivity to driver layer for this fatpipe (pstream) */
1171 	ath6kl_indicate_tx_activity(wmi->parent_dev, ev->traffic_class, false);
1172 
1173 	return 0;
1174 }
1175 
1176 static int ath6kl_wmi_bitrate_reply_rx(struct wmi *wmi, u8 *datap, int len)
1177 {
1178 	struct wmi_bit_rate_reply *reply;
1179 	s32 rate;
1180 	u32 sgi, index;
1181 
1182 	if (len < sizeof(struct wmi_bit_rate_reply))
1183 		return -EINVAL;
1184 
1185 	reply = (struct wmi_bit_rate_reply *) datap;
1186 
1187 	ath6kl_dbg(ATH6KL_DBG_WMI, "rateindex %d\n", reply->rate_index);
1188 
1189 	if (reply->rate_index == (s8) RATE_AUTO) {
1190 		rate = RATE_AUTO;
1191 	} else {
1192 		index = reply->rate_index & 0x7f;
1193 		if (WARN_ON_ONCE(index > (RATE_MCS_7_40 + 1)))
1194 			return -EINVAL;
1195 
1196 		sgi = (reply->rate_index & 0x80) ? 1 : 0;
1197 		rate = wmi_rate_tbl[index][sgi];
1198 	}
1199 
1200 	ath6kl_wakeup_event(wmi->parent_dev);
1201 
1202 	return 0;
1203 }
1204 
1205 static int ath6kl_wmi_test_rx(struct wmi *wmi, u8 *datap, int len)
1206 {
1207 	ath6kl_tm_rx_event(wmi->parent_dev, datap, len);
1208 
1209 	return 0;
1210 }
1211 
1212 static int ath6kl_wmi_ratemask_reply_rx(struct wmi *wmi, u8 *datap, int len)
1213 {
1214 	if (len < sizeof(struct wmi_fix_rates_reply))
1215 		return -EINVAL;
1216 
1217 	ath6kl_wakeup_event(wmi->parent_dev);
1218 
1219 	return 0;
1220 }
1221 
1222 static int ath6kl_wmi_ch_list_reply_rx(struct wmi *wmi, u8 *datap, int len)
1223 {
1224 	if (len < sizeof(struct wmi_channel_list_reply))
1225 		return -EINVAL;
1226 
1227 	ath6kl_wakeup_event(wmi->parent_dev);
1228 
1229 	return 0;
1230 }
1231 
1232 static int ath6kl_wmi_tx_pwr_reply_rx(struct wmi *wmi, u8 *datap, int len)
1233 {
1234 	struct wmi_tx_pwr_reply *reply;
1235 
1236 	if (len < sizeof(struct wmi_tx_pwr_reply))
1237 		return -EINVAL;
1238 
1239 	reply = (struct wmi_tx_pwr_reply *) datap;
1240 	ath6kl_txpwr_rx_evt(wmi->parent_dev, reply->dbM);
1241 
1242 	return 0;
1243 }
1244 
1245 static int ath6kl_wmi_keepalive_reply_rx(struct wmi *wmi, u8 *datap, int len)
1246 {
1247 	if (len < sizeof(struct wmi_get_keepalive_cmd))
1248 		return -EINVAL;
1249 
1250 	ath6kl_wakeup_event(wmi->parent_dev);
1251 
1252 	return 0;
1253 }
1254 
1255 static int ath6kl_wmi_scan_complete_rx(struct wmi *wmi, u8 *datap, int len,
1256 				       struct ath6kl_vif *vif)
1257 {
1258 	struct wmi_scan_complete_event *ev;
1259 
1260 	ev = (struct wmi_scan_complete_event *) datap;
1261 
1262 	ath6kl_scan_complete_evt(vif, a_sle32_to_cpu(ev->status));
1263 	wmi->is_probe_ssid = false;
1264 
1265 	return 0;
1266 }
1267 
1268 static int ath6kl_wmi_neighbor_report_event_rx(struct wmi *wmi, u8 *datap,
1269 					       int len, struct ath6kl_vif *vif)
1270 {
1271 	struct wmi_neighbor_report_event *ev;
1272 	u8 i;
1273 
1274 	if (len < sizeof(*ev))
1275 		return -EINVAL;
1276 	ev = (struct wmi_neighbor_report_event *) datap;
1277 	if (sizeof(*ev) + ev->num_neighbors * sizeof(struct wmi_neighbor_info)
1278 	    > len) {
1279 		ath6kl_dbg(ATH6KL_DBG_WMI,
1280 			   "truncated neighbor event (num=%d len=%d)\n",
1281 			   ev->num_neighbors, len);
1282 		return -EINVAL;
1283 	}
1284 	for (i = 0; i < ev->num_neighbors; i++) {
1285 		ath6kl_dbg(ATH6KL_DBG_WMI, "neighbor %d/%d - %pM 0x%x\n",
1286 			   i + 1, ev->num_neighbors, ev->neighbor[i].bssid,
1287 			   ev->neighbor[i].bss_flags);
1288 		cfg80211_pmksa_candidate_notify(vif->ndev, i,
1289 						ev->neighbor[i].bssid,
1290 						!!(ev->neighbor[i].bss_flags &
1291 						   WMI_PREAUTH_CAPABLE_BSS),
1292 						GFP_ATOMIC);
1293 	}
1294 
1295 	return 0;
1296 }
1297 
1298 /*
1299  * Target is reporting a programming error.  This is for
1300  * developer aid only.  Target only checks a few common violations
1301  * and it is responsibility of host to do all error checking.
1302  * Behavior of target after wmi error event is undefined.
1303  * A reset is recommended.
1304  */
1305 static int ath6kl_wmi_error_event_rx(struct wmi *wmi, u8 *datap, int len)
1306 {
1307 	const char *type = "unknown error";
1308 	struct wmi_cmd_error_event *ev;
1309 	ev = (struct wmi_cmd_error_event *) datap;
1310 
1311 	switch (ev->err_code) {
1312 	case INVALID_PARAM:
1313 		type = "invalid parameter";
1314 		break;
1315 	case ILLEGAL_STATE:
1316 		type = "invalid state";
1317 		break;
1318 	case INTERNAL_ERROR:
1319 		type = "internal error";
1320 		break;
1321 	}
1322 
1323 	ath6kl_dbg(ATH6KL_DBG_WMI, "programming error, cmd=%d %s\n",
1324 		   ev->cmd_id, type);
1325 
1326 	return 0;
1327 }
1328 
1329 static int ath6kl_wmi_stats_event_rx(struct wmi *wmi, u8 *datap, int len,
1330 				     struct ath6kl_vif *vif)
1331 {
1332 	ath6kl_tgt_stats_event(vif, datap, len);
1333 
1334 	return 0;
1335 }
1336 
1337 static u8 ath6kl_wmi_get_upper_threshold(s16 rssi,
1338 					 struct sq_threshold_params *sq_thresh,
1339 					 u32 size)
1340 {
1341 	u32 index;
1342 	u8 threshold = (u8) sq_thresh->upper_threshold[size - 1];
1343 
1344 	/* The list is already in sorted order. Get the next lower value */
1345 	for (index = 0; index < size; index++) {
1346 		if (rssi < sq_thresh->upper_threshold[index]) {
1347 			threshold = (u8) sq_thresh->upper_threshold[index];
1348 			break;
1349 		}
1350 	}
1351 
1352 	return threshold;
1353 }
1354 
1355 static u8 ath6kl_wmi_get_lower_threshold(s16 rssi,
1356 					 struct sq_threshold_params *sq_thresh,
1357 					 u32 size)
1358 {
1359 	u32 index;
1360 	u8 threshold = (u8) sq_thresh->lower_threshold[size - 1];
1361 
1362 	/* The list is already in sorted order. Get the next lower value */
1363 	for (index = 0; index < size; index++) {
1364 		if (rssi > sq_thresh->lower_threshold[index]) {
1365 			threshold = (u8) sq_thresh->lower_threshold[index];
1366 			break;
1367 		}
1368 	}
1369 
1370 	return threshold;
1371 }
1372 
1373 static int ath6kl_wmi_send_rssi_threshold_params(struct wmi *wmi,
1374 			struct wmi_rssi_threshold_params_cmd *rssi_cmd)
1375 {
1376 	struct sk_buff *skb;
1377 	struct wmi_rssi_threshold_params_cmd *cmd;
1378 
1379 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1380 	if (!skb)
1381 		return -ENOMEM;
1382 
1383 	cmd = (struct wmi_rssi_threshold_params_cmd *) skb->data;
1384 	memcpy(cmd, rssi_cmd, sizeof(struct wmi_rssi_threshold_params_cmd));
1385 
1386 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_RSSI_THRESHOLD_PARAMS_CMDID,
1387 				   NO_SYNC_WMIFLAG);
1388 }
1389 
1390 static int ath6kl_wmi_rssi_threshold_event_rx(struct wmi *wmi, u8 *datap,
1391 					      int len)
1392 {
1393 	struct wmi_rssi_threshold_event *reply;
1394 	struct wmi_rssi_threshold_params_cmd cmd;
1395 	struct sq_threshold_params *sq_thresh;
1396 	enum wmi_rssi_threshold_val new_threshold;
1397 	u8 upper_rssi_threshold, lower_rssi_threshold;
1398 	s16 rssi;
1399 	int ret;
1400 
1401 	if (len < sizeof(struct wmi_rssi_threshold_event))
1402 		return -EINVAL;
1403 
1404 	reply = (struct wmi_rssi_threshold_event *) datap;
1405 	new_threshold = (enum wmi_rssi_threshold_val) reply->range;
1406 	rssi = a_sle16_to_cpu(reply->rssi);
1407 
1408 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_RSSI];
1409 
1410 	/*
1411 	 * Identify the threshold breached and communicate that to the app.
1412 	 * After that install a new set of thresholds based on the signal
1413 	 * quality reported by the target
1414 	 */
1415 	if (new_threshold) {
1416 		/* Upper threshold breached */
1417 		if (rssi < sq_thresh->upper_threshold[0]) {
1418 			ath6kl_dbg(ATH6KL_DBG_WMI,
1419 				   "spurious upper rssi threshold event: %d\n",
1420 				   rssi);
1421 		} else if ((rssi < sq_thresh->upper_threshold[1]) &&
1422 			   (rssi >= sq_thresh->upper_threshold[0])) {
1423 			new_threshold = WMI_RSSI_THRESHOLD1_ABOVE;
1424 		} else if ((rssi < sq_thresh->upper_threshold[2]) &&
1425 			   (rssi >= sq_thresh->upper_threshold[1])) {
1426 			new_threshold = WMI_RSSI_THRESHOLD2_ABOVE;
1427 		} else if ((rssi < sq_thresh->upper_threshold[3]) &&
1428 			   (rssi >= sq_thresh->upper_threshold[2])) {
1429 			new_threshold = WMI_RSSI_THRESHOLD3_ABOVE;
1430 		} else if ((rssi < sq_thresh->upper_threshold[4]) &&
1431 			   (rssi >= sq_thresh->upper_threshold[3])) {
1432 			new_threshold = WMI_RSSI_THRESHOLD4_ABOVE;
1433 		} else if ((rssi < sq_thresh->upper_threshold[5]) &&
1434 			   (rssi >= sq_thresh->upper_threshold[4])) {
1435 			new_threshold = WMI_RSSI_THRESHOLD5_ABOVE;
1436 		} else if (rssi >= sq_thresh->upper_threshold[5]) {
1437 			new_threshold = WMI_RSSI_THRESHOLD6_ABOVE;
1438 		}
1439 	} else {
1440 		/* Lower threshold breached */
1441 		if (rssi > sq_thresh->lower_threshold[0]) {
1442 			ath6kl_dbg(ATH6KL_DBG_WMI,
1443 				   "spurious lower rssi threshold event: %d %d\n",
1444 				rssi, sq_thresh->lower_threshold[0]);
1445 		} else if ((rssi > sq_thresh->lower_threshold[1]) &&
1446 			   (rssi <= sq_thresh->lower_threshold[0])) {
1447 			new_threshold = WMI_RSSI_THRESHOLD6_BELOW;
1448 		} else if ((rssi > sq_thresh->lower_threshold[2]) &&
1449 			   (rssi <= sq_thresh->lower_threshold[1])) {
1450 			new_threshold = WMI_RSSI_THRESHOLD5_BELOW;
1451 		} else if ((rssi > sq_thresh->lower_threshold[3]) &&
1452 			   (rssi <= sq_thresh->lower_threshold[2])) {
1453 			new_threshold = WMI_RSSI_THRESHOLD4_BELOW;
1454 		} else if ((rssi > sq_thresh->lower_threshold[4]) &&
1455 			   (rssi <= sq_thresh->lower_threshold[3])) {
1456 			new_threshold = WMI_RSSI_THRESHOLD3_BELOW;
1457 		} else if ((rssi > sq_thresh->lower_threshold[5]) &&
1458 			   (rssi <= sq_thresh->lower_threshold[4])) {
1459 			new_threshold = WMI_RSSI_THRESHOLD2_BELOW;
1460 		} else if (rssi <= sq_thresh->lower_threshold[5]) {
1461 			new_threshold = WMI_RSSI_THRESHOLD1_BELOW;
1462 		}
1463 	}
1464 
1465 	/* Calculate and install the next set of thresholds */
1466 	lower_rssi_threshold = ath6kl_wmi_get_lower_threshold(rssi, sq_thresh,
1467 				       sq_thresh->lower_threshold_valid_count);
1468 	upper_rssi_threshold = ath6kl_wmi_get_upper_threshold(rssi, sq_thresh,
1469 				       sq_thresh->upper_threshold_valid_count);
1470 
1471 	/* Issue a wmi command to install the thresholds */
1472 	cmd.thresh_above1_val = a_cpu_to_sle16(upper_rssi_threshold);
1473 	cmd.thresh_below1_val = a_cpu_to_sle16(lower_rssi_threshold);
1474 	cmd.weight = sq_thresh->weight;
1475 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1476 
1477 	ret = ath6kl_wmi_send_rssi_threshold_params(wmi, &cmd);
1478 	if (ret) {
1479 		ath6kl_err("unable to configure rssi thresholds\n");
1480 		return -EIO;
1481 	}
1482 
1483 	return 0;
1484 }
1485 
1486 static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len,
1487 				   struct ath6kl_vif *vif)
1488 {
1489 	struct wmi_cac_event *reply;
1490 	struct ieee80211_tspec_ie *ts;
1491 	u16 active_tsids, tsinfo;
1492 	u8 tsid, index;
1493 	u8 ts_id;
1494 
1495 	if (len < sizeof(struct wmi_cac_event))
1496 		return -EINVAL;
1497 
1498 	reply = (struct wmi_cac_event *) datap;
1499 
1500 	if ((reply->cac_indication == CAC_INDICATION_ADMISSION_RESP) &&
1501 	    (reply->status_code != IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED)) {
1502 
1503 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1504 		tsinfo = le16_to_cpu(ts->tsinfo);
1505 		tsid = (tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1506 			IEEE80211_WMM_IE_TSPEC_TID_MASK;
1507 
1508 		ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1509 					      reply->ac, tsid);
1510 	} else if (reply->cac_indication == CAC_INDICATION_NO_RESP) {
1511 		/*
1512 		 * Following assumes that there is only one outstanding
1513 		 * ADDTS request when this event is received
1514 		 */
1515 		spin_lock_bh(&wmi->lock);
1516 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1517 		spin_unlock_bh(&wmi->lock);
1518 
1519 		for (index = 0; index < sizeof(active_tsids) * 8; index++) {
1520 			if ((active_tsids >> index) & 1)
1521 				break;
1522 		}
1523 		if (index < (sizeof(active_tsids) * 8))
1524 			ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1525 						      reply->ac, index);
1526 	}
1527 
1528 	/*
1529 	 * Clear active tsids and Add missing handling
1530 	 * for delete qos stream from AP
1531 	 */
1532 	else if (reply->cac_indication == CAC_INDICATION_DELETE) {
1533 
1534 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1535 		tsinfo = le16_to_cpu(ts->tsinfo);
1536 		ts_id = ((tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1537 			 IEEE80211_WMM_IE_TSPEC_TID_MASK);
1538 
1539 		spin_lock_bh(&wmi->lock);
1540 		wmi->stream_exist_for_ac[reply->ac] &= ~(1 << ts_id);
1541 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1542 		spin_unlock_bh(&wmi->lock);
1543 
1544 		/* Indicate stream inactivity to driver layer only if all tsids
1545 		 * within this AC are deleted.
1546 		 */
1547 		if (!active_tsids) {
1548 			ath6kl_indicate_tx_activity(wmi->parent_dev, reply->ac,
1549 						    false);
1550 			wmi->fat_pipe_exist &= ~(1 << reply->ac);
1551 		}
1552 	}
1553 
1554 	return 0;
1555 }
1556 
1557 static int ath6kl_wmi_txe_notify_event_rx(struct wmi *wmi, u8 *datap, int len,
1558 					  struct ath6kl_vif *vif)
1559 {
1560 	struct wmi_txe_notify_event *ev;
1561 	u32 rate, pkts;
1562 
1563 	if (len < sizeof(*ev))
1564 		return -EINVAL;
1565 
1566 	if (vif->sme_state != SME_CONNECTED)
1567 		return -ENOTCONN;
1568 
1569 	ev = (struct wmi_txe_notify_event *) datap;
1570 	rate = le32_to_cpu(ev->rate);
1571 	pkts = le32_to_cpu(ev->pkts);
1572 
1573 	ath6kl_dbg(ATH6KL_DBG_WMI, "TXE notify event: peer %pM rate %d% pkts %d intvl %ds\n",
1574 		   vif->bssid, rate, pkts, vif->txe_intvl);
1575 
1576 	cfg80211_cqm_txe_notify(vif->ndev, vif->bssid, pkts,
1577 				rate, vif->txe_intvl, GFP_KERNEL);
1578 
1579 	return 0;
1580 }
1581 
1582 int ath6kl_wmi_set_txe_notify(struct wmi *wmi, u8 idx,
1583 			      u32 rate, u32 pkts, u32 intvl)
1584 {
1585 	struct sk_buff *skb;
1586 	struct wmi_txe_notify_cmd *cmd;
1587 
1588 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1589 	if (!skb)
1590 		return -ENOMEM;
1591 
1592 	cmd = (struct wmi_txe_notify_cmd *) skb->data;
1593 	cmd->rate = cpu_to_le32(rate);
1594 	cmd->pkts = cpu_to_le32(pkts);
1595 	cmd->intvl = cpu_to_le32(intvl);
1596 
1597 	return ath6kl_wmi_cmd_send(wmi, idx, skb, WMI_SET_TXE_NOTIFY_CMDID,
1598 				   NO_SYNC_WMIFLAG);
1599 }
1600 
1601 int ath6kl_wmi_set_rssi_filter_cmd(struct wmi *wmi, u8 if_idx, s8 rssi)
1602 {
1603 	struct sk_buff *skb;
1604 	struct wmi_set_rssi_filter_cmd *cmd;
1605 	int ret;
1606 
1607 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1608 	if (!skb)
1609 		return -ENOMEM;
1610 
1611 	cmd = (struct wmi_set_rssi_filter_cmd *) skb->data;
1612 	cmd->rssi = rssi;
1613 
1614 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_RSSI_FILTER_CMDID,
1615 				  NO_SYNC_WMIFLAG);
1616 	return ret;
1617 }
1618 
1619 static int ath6kl_wmi_send_snr_threshold_params(struct wmi *wmi,
1620 			struct wmi_snr_threshold_params_cmd *snr_cmd)
1621 {
1622 	struct sk_buff *skb;
1623 	struct wmi_snr_threshold_params_cmd *cmd;
1624 
1625 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1626 	if (!skb)
1627 		return -ENOMEM;
1628 
1629 	cmd = (struct wmi_snr_threshold_params_cmd *) skb->data;
1630 	memcpy(cmd, snr_cmd, sizeof(struct wmi_snr_threshold_params_cmd));
1631 
1632 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SNR_THRESHOLD_PARAMS_CMDID,
1633 				   NO_SYNC_WMIFLAG);
1634 }
1635 
1636 static int ath6kl_wmi_snr_threshold_event_rx(struct wmi *wmi, u8 *datap,
1637 					     int len)
1638 {
1639 	struct wmi_snr_threshold_event *reply;
1640 	struct sq_threshold_params *sq_thresh;
1641 	struct wmi_snr_threshold_params_cmd cmd;
1642 	enum wmi_snr_threshold_val new_threshold;
1643 	u8 upper_snr_threshold, lower_snr_threshold;
1644 	s16 snr;
1645 	int ret;
1646 
1647 	if (len < sizeof(struct wmi_snr_threshold_event))
1648 		return -EINVAL;
1649 
1650 	reply = (struct wmi_snr_threshold_event *) datap;
1651 
1652 	new_threshold = (enum wmi_snr_threshold_val) reply->range;
1653 	snr = reply->snr;
1654 
1655 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_SNR];
1656 
1657 	/*
1658 	 * Identify the threshold breached and communicate that to the app.
1659 	 * After that install a new set of thresholds based on the signal
1660 	 * quality reported by the target.
1661 	 */
1662 	if (new_threshold) {
1663 		/* Upper threshold breached */
1664 		if (snr < sq_thresh->upper_threshold[0]) {
1665 			ath6kl_dbg(ATH6KL_DBG_WMI,
1666 				   "spurious upper snr threshold event: %d\n",
1667 				   snr);
1668 		} else if ((snr < sq_thresh->upper_threshold[1]) &&
1669 			   (snr >= sq_thresh->upper_threshold[0])) {
1670 			new_threshold = WMI_SNR_THRESHOLD1_ABOVE;
1671 		} else if ((snr < sq_thresh->upper_threshold[2]) &&
1672 			   (snr >= sq_thresh->upper_threshold[1])) {
1673 			new_threshold = WMI_SNR_THRESHOLD2_ABOVE;
1674 		} else if ((snr < sq_thresh->upper_threshold[3]) &&
1675 			   (snr >= sq_thresh->upper_threshold[2])) {
1676 			new_threshold = WMI_SNR_THRESHOLD3_ABOVE;
1677 		} else if (snr >= sq_thresh->upper_threshold[3]) {
1678 			new_threshold = WMI_SNR_THRESHOLD4_ABOVE;
1679 		}
1680 	} else {
1681 		/* Lower threshold breached */
1682 		if (snr > sq_thresh->lower_threshold[0]) {
1683 			ath6kl_dbg(ATH6KL_DBG_WMI,
1684 				   "spurious lower snr threshold event: %d\n",
1685 				   sq_thresh->lower_threshold[0]);
1686 		} else if ((snr > sq_thresh->lower_threshold[1]) &&
1687 			   (snr <= sq_thresh->lower_threshold[0])) {
1688 			new_threshold = WMI_SNR_THRESHOLD4_BELOW;
1689 		} else if ((snr > sq_thresh->lower_threshold[2]) &&
1690 			   (snr <= sq_thresh->lower_threshold[1])) {
1691 			new_threshold = WMI_SNR_THRESHOLD3_BELOW;
1692 		} else if ((snr > sq_thresh->lower_threshold[3]) &&
1693 			   (snr <= sq_thresh->lower_threshold[2])) {
1694 			new_threshold = WMI_SNR_THRESHOLD2_BELOW;
1695 		} else if (snr <= sq_thresh->lower_threshold[3]) {
1696 			new_threshold = WMI_SNR_THRESHOLD1_BELOW;
1697 		}
1698 	}
1699 
1700 	/* Calculate and install the next set of thresholds */
1701 	lower_snr_threshold = ath6kl_wmi_get_lower_threshold(snr, sq_thresh,
1702 				       sq_thresh->lower_threshold_valid_count);
1703 	upper_snr_threshold = ath6kl_wmi_get_upper_threshold(snr, sq_thresh,
1704 				       sq_thresh->upper_threshold_valid_count);
1705 
1706 	/* Issue a wmi command to install the thresholds */
1707 	cmd.thresh_above1_val = upper_snr_threshold;
1708 	cmd.thresh_below1_val = lower_snr_threshold;
1709 	cmd.weight = sq_thresh->weight;
1710 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1711 
1712 	ath6kl_dbg(ATH6KL_DBG_WMI,
1713 		   "snr: %d, threshold: %d, lower: %d, upper: %d\n",
1714 		   snr, new_threshold,
1715 		   lower_snr_threshold, upper_snr_threshold);
1716 
1717 	ret = ath6kl_wmi_send_snr_threshold_params(wmi, &cmd);
1718 	if (ret) {
1719 		ath6kl_err("unable to configure snr threshold\n");
1720 		return -EIO;
1721 	}
1722 
1723 	return 0;
1724 }
1725 
1726 static int ath6kl_wmi_aplist_event_rx(struct wmi *wmi, u8 *datap, int len)
1727 {
1728 	u16 ap_info_entry_size;
1729 	struct wmi_aplist_event *ev = (struct wmi_aplist_event *) datap;
1730 	struct wmi_ap_info_v1 *ap_info_v1;
1731 	u8 index;
1732 
1733 	if (len < sizeof(struct wmi_aplist_event) ||
1734 	    ev->ap_list_ver != APLIST_VER1)
1735 		return -EINVAL;
1736 
1737 	ap_info_entry_size = sizeof(struct wmi_ap_info_v1);
1738 	ap_info_v1 = (struct wmi_ap_info_v1 *) ev->ap_list;
1739 
1740 	ath6kl_dbg(ATH6KL_DBG_WMI,
1741 		   "number of APs in aplist event: %d\n", ev->num_ap);
1742 
1743 	if (len < (int) (sizeof(struct wmi_aplist_event) +
1744 			 (ev->num_ap - 1) * ap_info_entry_size))
1745 		return -EINVAL;
1746 
1747 	/* AP list version 1 contents */
1748 	for (index = 0; index < ev->num_ap; index++) {
1749 		ath6kl_dbg(ATH6KL_DBG_WMI, "AP#%d BSSID %pM Channel %d\n",
1750 			   index, ap_info_v1->bssid, ap_info_v1->channel);
1751 		ap_info_v1++;
1752 	}
1753 
1754 	return 0;
1755 }
1756 
1757 int ath6kl_wmi_cmd_send(struct wmi *wmi, u8 if_idx, struct sk_buff *skb,
1758 			enum wmi_cmd_id cmd_id, enum wmi_sync_flag sync_flag)
1759 {
1760 	struct wmi_cmd_hdr *cmd_hdr;
1761 	enum htc_endpoint_id ep_id = wmi->ep_id;
1762 	int ret;
1763 	u16 info1;
1764 
1765 	if (WARN_ON(skb == NULL ||
1766 		    (if_idx > (wmi->parent_dev->vif_max - 1)))) {
1767 		dev_kfree_skb(skb);
1768 		return -EINVAL;
1769 	}
1770 
1771 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi tx id %d len %d flag %d\n",
1772 		   cmd_id, skb->len, sync_flag);
1773 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi tx ",
1774 			skb->data, skb->len);
1775 
1776 	if (sync_flag >= END_WMIFLAG) {
1777 		dev_kfree_skb(skb);
1778 		return -EINVAL;
1779 	}
1780 
1781 	if ((sync_flag == SYNC_BEFORE_WMIFLAG) ||
1782 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1783 		/*
1784 		 * Make sure all data currently queued is transmitted before
1785 		 * the cmd execution.  Establish a new sync point.
1786 		 */
1787 		ath6kl_wmi_sync_point(wmi, if_idx);
1788 	}
1789 
1790 	skb_push(skb, sizeof(struct wmi_cmd_hdr));
1791 
1792 	cmd_hdr = (struct wmi_cmd_hdr *) skb->data;
1793 	cmd_hdr->cmd_id = cpu_to_le16(cmd_id);
1794 	info1 = if_idx & WMI_CMD_HDR_IF_ID_MASK;
1795 	cmd_hdr->info1 = cpu_to_le16(info1);
1796 
1797 	/* Only for OPT_TX_CMD, use BE endpoint. */
1798 	if (cmd_id == WMI_OPT_TX_FRAME_CMDID) {
1799 		ret = ath6kl_wmi_data_hdr_add(wmi, skb, OPT_MSGTYPE,
1800 					      false, false, 0, NULL, if_idx);
1801 		if (ret) {
1802 			dev_kfree_skb(skb);
1803 			return ret;
1804 		}
1805 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev, WMM_AC_BE);
1806 	}
1807 
1808 	ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
1809 
1810 	if ((sync_flag == SYNC_AFTER_WMIFLAG) ||
1811 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1812 		/*
1813 		 * Make sure all new data queued waits for the command to
1814 		 * execute. Establish a new sync point.
1815 		 */
1816 		ath6kl_wmi_sync_point(wmi, if_idx);
1817 	}
1818 
1819 	return 0;
1820 }
1821 
1822 int ath6kl_wmi_connect_cmd(struct wmi *wmi, u8 if_idx,
1823 			   enum network_type nw_type,
1824 			   enum dot11_auth_mode dot11_auth_mode,
1825 			   enum auth_mode auth_mode,
1826 			   enum crypto_type pairwise_crypto,
1827 			   u8 pairwise_crypto_len,
1828 			   enum crypto_type group_crypto,
1829 			   u8 group_crypto_len, int ssid_len, u8 *ssid,
1830 			   u8 *bssid, u16 channel, u32 ctrl_flags,
1831 			   u8 nw_subtype)
1832 {
1833 	struct sk_buff *skb;
1834 	struct wmi_connect_cmd *cc;
1835 	int ret;
1836 
1837 	ath6kl_dbg(ATH6KL_DBG_WMI,
1838 		   "wmi connect bssid %pM freq %d flags 0x%x ssid_len %d "
1839 		   "type %d dot11_auth %d auth %d pairwise %d group %d\n",
1840 		   bssid, channel, ctrl_flags, ssid_len, nw_type,
1841 		   dot11_auth_mode, auth_mode, pairwise_crypto, group_crypto);
1842 	ath6kl_dbg_dump(ATH6KL_DBG_WMI, NULL, "ssid ", ssid, ssid_len);
1843 
1844 	wmi->traffic_class = 100;
1845 
1846 	if ((pairwise_crypto == NONE_CRYPT) && (group_crypto != NONE_CRYPT))
1847 		return -EINVAL;
1848 
1849 	if ((pairwise_crypto != NONE_CRYPT) && (group_crypto == NONE_CRYPT))
1850 		return -EINVAL;
1851 
1852 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_connect_cmd));
1853 	if (!skb)
1854 		return -ENOMEM;
1855 
1856 	cc = (struct wmi_connect_cmd *) skb->data;
1857 
1858 	if (ssid_len)
1859 		memcpy(cc->ssid, ssid, ssid_len);
1860 
1861 	cc->ssid_len = ssid_len;
1862 	cc->nw_type = nw_type;
1863 	cc->dot11_auth_mode = dot11_auth_mode;
1864 	cc->auth_mode = auth_mode;
1865 	cc->prwise_crypto_type = pairwise_crypto;
1866 	cc->prwise_crypto_len = pairwise_crypto_len;
1867 	cc->grp_crypto_type = group_crypto;
1868 	cc->grp_crypto_len = group_crypto_len;
1869 	cc->ch = cpu_to_le16(channel);
1870 	cc->ctrl_flags = cpu_to_le32(ctrl_flags);
1871 	cc->nw_subtype = nw_subtype;
1872 
1873 	if (bssid != NULL)
1874 		memcpy(cc->bssid, bssid, ETH_ALEN);
1875 
1876 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CONNECT_CMDID,
1877 				  NO_SYNC_WMIFLAG);
1878 
1879 	return ret;
1880 }
1881 
1882 int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 if_idx, u8 *bssid,
1883 			     u16 channel)
1884 {
1885 	struct sk_buff *skb;
1886 	struct wmi_reconnect_cmd *cc;
1887 	int ret;
1888 
1889 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi reconnect bssid %pM freq %d\n",
1890 		   bssid, channel);
1891 
1892 	wmi->traffic_class = 100;
1893 
1894 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_reconnect_cmd));
1895 	if (!skb)
1896 		return -ENOMEM;
1897 
1898 	cc = (struct wmi_reconnect_cmd *) skb->data;
1899 	cc->channel = cpu_to_le16(channel);
1900 
1901 	if (bssid != NULL)
1902 		memcpy(cc->bssid, bssid, ETH_ALEN);
1903 
1904 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RECONNECT_CMDID,
1905 				  NO_SYNC_WMIFLAG);
1906 
1907 	return ret;
1908 }
1909 
1910 int ath6kl_wmi_disconnect_cmd(struct wmi *wmi, u8 if_idx)
1911 {
1912 	int ret;
1913 
1914 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi disconnect\n");
1915 
1916 	wmi->traffic_class = 100;
1917 
1918 	/* Disconnect command does not need to do a SYNC before. */
1919 	ret = ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_DISCONNECT_CMDID);
1920 
1921 	return ret;
1922 }
1923 
1924 /* ath6kl_wmi_start_scan_cmd is to be deprecated. Use
1925  * ath6kl_wmi_begin_scan_cmd instead. The new function supports P2P
1926  * mgmt operations using station interface.
1927  */
1928 static int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx,
1929 				    enum wmi_scan_type scan_type,
1930 				    u32 force_fgscan, u32 is_legacy,
1931 				    u32 home_dwell_time,
1932 				    u32 force_scan_interval,
1933 				    s8 num_chan, u16 *ch_list)
1934 {
1935 	struct sk_buff *skb;
1936 	struct wmi_start_scan_cmd *sc;
1937 	s8 size;
1938 	int i, ret;
1939 
1940 	size = sizeof(struct wmi_start_scan_cmd);
1941 
1942 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
1943 		return -EINVAL;
1944 
1945 	if (num_chan > WMI_MAX_CHANNELS)
1946 		return -EINVAL;
1947 
1948 	if (num_chan)
1949 		size += sizeof(u16) * (num_chan - 1);
1950 
1951 	skb = ath6kl_wmi_get_new_buf(size);
1952 	if (!skb)
1953 		return -ENOMEM;
1954 
1955 	sc = (struct wmi_start_scan_cmd *) skb->data;
1956 	sc->scan_type = scan_type;
1957 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
1958 	sc->is_legacy = cpu_to_le32(is_legacy);
1959 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
1960 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
1961 	sc->num_ch = num_chan;
1962 
1963 	for (i = 0; i < num_chan; i++)
1964 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
1965 
1966 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_START_SCAN_CMDID,
1967 				  NO_SYNC_WMIFLAG);
1968 
1969 	return ret;
1970 }
1971 
1972 /*
1973  * beginscan supports (compared to old startscan) P2P mgmt operations using
1974  * station interface, send additional information like supported rates to
1975  * advertise and xmit rates for probe requests
1976  */
1977 int ath6kl_wmi_beginscan_cmd(struct wmi *wmi, u8 if_idx,
1978 			     enum wmi_scan_type scan_type,
1979 			     u32 force_fgscan, u32 is_legacy,
1980 			     u32 home_dwell_time, u32 force_scan_interval,
1981 			     s8 num_chan, u16 *ch_list, u32 no_cck, u32 *rates)
1982 {
1983 	struct ieee80211_supported_band *sband;
1984 	struct sk_buff *skb;
1985 	struct wmi_begin_scan_cmd *sc;
1986 	s8 size, *supp_rates;
1987 	int i, band, ret;
1988 	struct ath6kl *ar = wmi->parent_dev;
1989 	int num_rates;
1990 	u32 ratemask;
1991 
1992 	if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
1993 		      ar->fw_capabilities)) {
1994 		return ath6kl_wmi_startscan_cmd(wmi, if_idx,
1995 						scan_type, force_fgscan,
1996 						is_legacy, home_dwell_time,
1997 						force_scan_interval,
1998 						num_chan, ch_list);
1999 	}
2000 
2001 	size = sizeof(struct wmi_begin_scan_cmd);
2002 
2003 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
2004 		return -EINVAL;
2005 
2006 	if (num_chan > WMI_MAX_CHANNELS)
2007 		return -EINVAL;
2008 
2009 	if (num_chan)
2010 		size += sizeof(u16) * (num_chan - 1);
2011 
2012 	skb = ath6kl_wmi_get_new_buf(size);
2013 	if (!skb)
2014 		return -ENOMEM;
2015 
2016 	sc = (struct wmi_begin_scan_cmd *) skb->data;
2017 	sc->scan_type = scan_type;
2018 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
2019 	sc->is_legacy = cpu_to_le32(is_legacy);
2020 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
2021 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
2022 	sc->no_cck = cpu_to_le32(no_cck);
2023 	sc->num_ch = num_chan;
2024 
2025 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2026 		sband = ar->wiphy->bands[band];
2027 
2028 		if (!sband)
2029 			continue;
2030 
2031 		if (WARN_ON(band >= ATH6KL_NUM_BANDS))
2032 			break;
2033 
2034 		ratemask = rates[band];
2035 		supp_rates = sc->supp_rates[band].rates;
2036 		num_rates = 0;
2037 
2038 		for (i = 0; i < sband->n_bitrates; i++) {
2039 			if ((BIT(i) & ratemask) == 0)
2040 				continue; /* skip rate */
2041 			supp_rates[num_rates++] =
2042 			    (u8) (sband->bitrates[i].bitrate / 5);
2043 		}
2044 		sc->supp_rates[band].nrates = num_rates;
2045 	}
2046 
2047 	for (i = 0; i < num_chan; i++)
2048 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
2049 
2050 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_BEGIN_SCAN_CMDID,
2051 				  NO_SYNC_WMIFLAG);
2052 
2053 	return ret;
2054 }
2055 
2056 int ath6kl_wmi_enable_sched_scan_cmd(struct wmi *wmi, u8 if_idx, bool enable)
2057 {
2058 	struct sk_buff *skb;
2059 	struct wmi_enable_sched_scan_cmd *sc;
2060 	int ret;
2061 
2062 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2063 	if (!skb)
2064 		return -ENOMEM;
2065 
2066 	ath6kl_dbg(ATH6KL_DBG_WMI, "%s scheduled scan on vif %d\n",
2067 		   enable ? "enabling" : "disabling", if_idx);
2068 	sc = (struct wmi_enable_sched_scan_cmd *) skb->data;
2069 	sc->enable = enable ? 1 : 0;
2070 
2071 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2072 				  WMI_ENABLE_SCHED_SCAN_CMDID,
2073 				  NO_SYNC_WMIFLAG);
2074 	return ret;
2075 }
2076 
2077 int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u8 if_idx,
2078 			      u16 fg_start_sec,
2079 			      u16 fg_end_sec, u16 bg_sec,
2080 			      u16 minact_chdw_msec, u16 maxact_chdw_msec,
2081 			      u16 pas_chdw_msec, u8 short_scan_ratio,
2082 			      u8 scan_ctrl_flag, u32 max_dfsch_act_time,
2083 			      u16 maxact_scan_per_ssid)
2084 {
2085 	struct sk_buff *skb;
2086 	struct wmi_scan_params_cmd *sc;
2087 	int ret;
2088 
2089 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
2090 	if (!skb)
2091 		return -ENOMEM;
2092 
2093 	sc = (struct wmi_scan_params_cmd *) skb->data;
2094 	sc->fg_start_period = cpu_to_le16(fg_start_sec);
2095 	sc->fg_end_period = cpu_to_le16(fg_end_sec);
2096 	sc->bg_period = cpu_to_le16(bg_sec);
2097 	sc->minact_chdwell_time = cpu_to_le16(minact_chdw_msec);
2098 	sc->maxact_chdwell_time = cpu_to_le16(maxact_chdw_msec);
2099 	sc->pas_chdwell_time = cpu_to_le16(pas_chdw_msec);
2100 	sc->short_scan_ratio = short_scan_ratio;
2101 	sc->scan_ctrl_flags = scan_ctrl_flag;
2102 	sc->max_dfsch_act_time = cpu_to_le32(max_dfsch_act_time);
2103 	sc->maxact_scan_per_ssid = cpu_to_le16(maxact_scan_per_ssid);
2104 
2105 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_SCAN_PARAMS_CMDID,
2106 				  NO_SYNC_WMIFLAG);
2107 	return ret;
2108 }
2109 
2110 int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 if_idx, u8 filter, u32 ie_mask)
2111 {
2112 	struct sk_buff *skb;
2113 	struct wmi_bss_filter_cmd *cmd;
2114 	int ret;
2115 
2116 	if (filter >= LAST_BSS_FILTER)
2117 		return -EINVAL;
2118 
2119 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2120 	if (!skb)
2121 		return -ENOMEM;
2122 
2123 	cmd = (struct wmi_bss_filter_cmd *) skb->data;
2124 	cmd->bss_filter = filter;
2125 	cmd->ie_mask = cpu_to_le32(ie_mask);
2126 
2127 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BSS_FILTER_CMDID,
2128 				  NO_SYNC_WMIFLAG);
2129 	return ret;
2130 }
2131 
2132 int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 if_idx, u8 index, u8 flag,
2133 			      u8 ssid_len, u8 *ssid)
2134 {
2135 	struct sk_buff *skb;
2136 	struct wmi_probed_ssid_cmd *cmd;
2137 	int ret;
2138 
2139 	if (index >= MAX_PROBED_SSIDS)
2140 		return -EINVAL;
2141 
2142 	if (ssid_len > sizeof(cmd->ssid))
2143 		return -EINVAL;
2144 
2145 	if ((flag & (DISABLE_SSID_FLAG | ANY_SSID_FLAG)) && (ssid_len > 0))
2146 		return -EINVAL;
2147 
2148 	if ((flag & SPECIFIC_SSID_FLAG) && !ssid_len)
2149 		return -EINVAL;
2150 
2151 	if (flag & SPECIFIC_SSID_FLAG)
2152 		wmi->is_probe_ssid = true;
2153 
2154 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2155 	if (!skb)
2156 		return -ENOMEM;
2157 
2158 	cmd = (struct wmi_probed_ssid_cmd *) skb->data;
2159 	cmd->entry_index = index;
2160 	cmd->flag = flag;
2161 	cmd->ssid_len = ssid_len;
2162 	memcpy(cmd->ssid, ssid, ssid_len);
2163 
2164 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PROBED_SSID_CMDID,
2165 				  NO_SYNC_WMIFLAG);
2166 	return ret;
2167 }
2168 
2169 int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u8 if_idx,
2170 				  u16 listen_interval,
2171 				  u16 listen_beacons)
2172 {
2173 	struct sk_buff *skb;
2174 	struct wmi_listen_int_cmd *cmd;
2175 	int ret;
2176 
2177 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2178 	if (!skb)
2179 		return -ENOMEM;
2180 
2181 	cmd = (struct wmi_listen_int_cmd *) skb->data;
2182 	cmd->listen_intvl = cpu_to_le16(listen_interval);
2183 	cmd->num_beacons = cpu_to_le16(listen_beacons);
2184 
2185 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LISTEN_INT_CMDID,
2186 				  NO_SYNC_WMIFLAG);
2187 	return ret;
2188 }
2189 
2190 int ath6kl_wmi_bmisstime_cmd(struct wmi *wmi, u8 if_idx,
2191 			     u16 bmiss_time, u16 num_beacons)
2192 {
2193 	struct sk_buff *skb;
2194 	struct wmi_bmiss_time_cmd *cmd;
2195 	int ret;
2196 
2197 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2198 	if (!skb)
2199 		return -ENOMEM;
2200 
2201 	cmd = (struct wmi_bmiss_time_cmd *) skb->data;
2202 	cmd->bmiss_time = cpu_to_le16(bmiss_time);
2203 	cmd->num_beacons = cpu_to_le16(num_beacons);
2204 
2205 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BMISS_TIME_CMDID,
2206 				  NO_SYNC_WMIFLAG);
2207 	return ret;
2208 }
2209 
2210 int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 if_idx, u8 pwr_mode)
2211 {
2212 	struct sk_buff *skb;
2213 	struct wmi_power_mode_cmd *cmd;
2214 	int ret;
2215 
2216 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2217 	if (!skb)
2218 		return -ENOMEM;
2219 
2220 	cmd = (struct wmi_power_mode_cmd *) skb->data;
2221 	cmd->pwr_mode = pwr_mode;
2222 	wmi->pwr_mode = pwr_mode;
2223 
2224 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_MODE_CMDID,
2225 				  NO_SYNC_WMIFLAG);
2226 	return ret;
2227 }
2228 
2229 int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u8 if_idx, u16 idle_period,
2230 			    u16 ps_poll_num, u16 dtim_policy,
2231 			    u16 tx_wakeup_policy, u16 num_tx_to_wakeup,
2232 			    u16 ps_fail_event_policy)
2233 {
2234 	struct sk_buff *skb;
2235 	struct wmi_power_params_cmd *pm;
2236 	int ret;
2237 
2238 	skb = ath6kl_wmi_get_new_buf(sizeof(*pm));
2239 	if (!skb)
2240 		return -ENOMEM;
2241 
2242 	pm = (struct wmi_power_params_cmd *)skb->data;
2243 	pm->idle_period = cpu_to_le16(idle_period);
2244 	pm->pspoll_number = cpu_to_le16(ps_poll_num);
2245 	pm->dtim_policy = cpu_to_le16(dtim_policy);
2246 	pm->tx_wakeup_policy = cpu_to_le16(tx_wakeup_policy);
2247 	pm->num_tx_to_wakeup = cpu_to_le16(num_tx_to_wakeup);
2248 	pm->ps_fail_event_policy = cpu_to_le16(ps_fail_event_policy);
2249 
2250 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_PARAMS_CMDID,
2251 				  NO_SYNC_WMIFLAG);
2252 	return ret;
2253 }
2254 
2255 int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 if_idx, u8 timeout)
2256 {
2257 	struct sk_buff *skb;
2258 	struct wmi_disc_timeout_cmd *cmd;
2259 	int ret;
2260 
2261 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2262 	if (!skb)
2263 		return -ENOMEM;
2264 
2265 	cmd = (struct wmi_disc_timeout_cmd *) skb->data;
2266 	cmd->discon_timeout = timeout;
2267 
2268 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_DISC_TIMEOUT_CMDID,
2269 				  NO_SYNC_WMIFLAG);
2270 
2271 	if (ret == 0)
2272 		ath6kl_debug_set_disconnect_timeout(wmi->parent_dev, timeout);
2273 
2274 	return ret;
2275 }
2276 
2277 int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index,
2278 			  enum crypto_type key_type,
2279 			  u8 key_usage, u8 key_len,
2280 			  u8 *key_rsc, unsigned int key_rsc_len,
2281 			  u8 *key_material,
2282 			  u8 key_op_ctrl, u8 *mac_addr,
2283 			  enum wmi_sync_flag sync_flag)
2284 {
2285 	struct sk_buff *skb;
2286 	struct wmi_add_cipher_key_cmd *cmd;
2287 	int ret;
2288 
2289 	ath6kl_dbg(ATH6KL_DBG_WMI,
2290 		   "addkey cmd: key_index=%u key_type=%d key_usage=%d key_len=%d key_op_ctrl=%d\n",
2291 		   key_index, key_type, key_usage, key_len, key_op_ctrl);
2292 
2293 	if ((key_index > WMI_MAX_KEY_INDEX) || (key_len > WMI_MAX_KEY_LEN) ||
2294 	    (key_material == NULL) || key_rsc_len > 8)
2295 		return -EINVAL;
2296 
2297 	if ((WEP_CRYPT != key_type) && (NULL == key_rsc))
2298 		return -EINVAL;
2299 
2300 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2301 	if (!skb)
2302 		return -ENOMEM;
2303 
2304 	cmd = (struct wmi_add_cipher_key_cmd *) skb->data;
2305 	cmd->key_index = key_index;
2306 	cmd->key_type = key_type;
2307 	cmd->key_usage = key_usage;
2308 	cmd->key_len = key_len;
2309 	memcpy(cmd->key, key_material, key_len);
2310 
2311 	if (key_rsc != NULL)
2312 		memcpy(cmd->key_rsc, key_rsc, key_rsc_len);
2313 
2314 	cmd->key_op_ctrl = key_op_ctrl;
2315 
2316 	if (mac_addr)
2317 		memcpy(cmd->key_mac_addr, mac_addr, ETH_ALEN);
2318 
2319 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_CIPHER_KEY_CMDID,
2320 				  sync_flag);
2321 
2322 	return ret;
2323 }
2324 
2325 int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 if_idx, u8 *krk)
2326 {
2327 	struct sk_buff *skb;
2328 	struct wmi_add_krk_cmd *cmd;
2329 	int ret;
2330 
2331 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2332 	if (!skb)
2333 		return -ENOMEM;
2334 
2335 	cmd = (struct wmi_add_krk_cmd *) skb->data;
2336 	memcpy(cmd->krk, krk, WMI_KRK_LEN);
2337 
2338 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_KRK_CMDID,
2339 				  NO_SYNC_WMIFLAG);
2340 
2341 	return ret;
2342 }
2343 
2344 int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index)
2345 {
2346 	struct sk_buff *skb;
2347 	struct wmi_delete_cipher_key_cmd *cmd;
2348 	int ret;
2349 
2350 	if (key_index > WMI_MAX_KEY_INDEX)
2351 		return -EINVAL;
2352 
2353 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2354 	if (!skb)
2355 		return -ENOMEM;
2356 
2357 	cmd = (struct wmi_delete_cipher_key_cmd *) skb->data;
2358 	cmd->key_index = key_index;
2359 
2360 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_CIPHER_KEY_CMDID,
2361 				  NO_SYNC_WMIFLAG);
2362 
2363 	return ret;
2364 }
2365 
2366 int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, u8 if_idx, const u8 *bssid,
2367 			    const u8 *pmkid, bool set)
2368 {
2369 	struct sk_buff *skb;
2370 	struct wmi_setpmkid_cmd *cmd;
2371 	int ret;
2372 
2373 	if (bssid == NULL)
2374 		return -EINVAL;
2375 
2376 	if (set && pmkid == NULL)
2377 		return -EINVAL;
2378 
2379 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2380 	if (!skb)
2381 		return -ENOMEM;
2382 
2383 	cmd = (struct wmi_setpmkid_cmd *) skb->data;
2384 	memcpy(cmd->bssid, bssid, ETH_ALEN);
2385 	if (set) {
2386 		memcpy(cmd->pmkid, pmkid, sizeof(cmd->pmkid));
2387 		cmd->enable = PMKID_ENABLE;
2388 	} else {
2389 		memset(cmd->pmkid, 0, sizeof(cmd->pmkid));
2390 		cmd->enable = PMKID_DISABLE;
2391 	}
2392 
2393 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PMKID_CMDID,
2394 				  NO_SYNC_WMIFLAG);
2395 
2396 	return ret;
2397 }
2398 
2399 static int ath6kl_wmi_data_sync_send(struct wmi *wmi, struct sk_buff *skb,
2400 			      enum htc_endpoint_id ep_id, u8 if_idx)
2401 {
2402 	struct wmi_data_hdr *data_hdr;
2403 	int ret;
2404 
2405 	if (WARN_ON(skb == NULL || ep_id == wmi->ep_id)) {
2406 		dev_kfree_skb(skb);
2407 		return -EINVAL;
2408 	}
2409 
2410 	skb_push(skb, sizeof(struct wmi_data_hdr));
2411 
2412 	data_hdr = (struct wmi_data_hdr *) skb->data;
2413 	data_hdr->info = SYNC_MSGTYPE << WMI_DATA_HDR_MSG_TYPE_SHIFT;
2414 	data_hdr->info3 = cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
2415 
2416 	ret = ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
2417 
2418 	return ret;
2419 }
2420 
2421 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx)
2422 {
2423 	struct sk_buff *skb;
2424 	struct wmi_sync_cmd *cmd;
2425 	struct wmi_data_sync_bufs data_sync_bufs[WMM_NUM_AC];
2426 	enum htc_endpoint_id ep_id;
2427 	u8 index, num_pri_streams = 0;
2428 	int ret = 0;
2429 
2430 	memset(data_sync_bufs, 0, sizeof(data_sync_bufs));
2431 
2432 	spin_lock_bh(&wmi->lock);
2433 
2434 	for (index = 0; index < WMM_NUM_AC; index++) {
2435 		if (wmi->fat_pipe_exist & (1 << index)) {
2436 			num_pri_streams++;
2437 			data_sync_bufs[num_pri_streams - 1].traffic_class =
2438 			    index;
2439 		}
2440 	}
2441 
2442 	spin_unlock_bh(&wmi->lock);
2443 
2444 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2445 	if (!skb)
2446 		return -ENOMEM;
2447 
2448 	cmd = (struct wmi_sync_cmd *) skb->data;
2449 
2450 	/*
2451 	 * In the SYNC cmd sent on the control Ep, send a bitmap
2452 	 * of the data eps on which the Data Sync will be sent
2453 	 */
2454 	cmd->data_sync_map = wmi->fat_pipe_exist;
2455 
2456 	for (index = 0; index < num_pri_streams; index++) {
2457 		data_sync_bufs[index].skb = ath6kl_buf_alloc(0);
2458 		if (data_sync_bufs[index].skb == NULL) {
2459 			ret = -ENOMEM;
2460 			break;
2461 		}
2462 	}
2463 
2464 	/*
2465 	 * If buffer allocation for any of the dataSync fails,
2466 	 * then do not send the Synchronize cmd on the control ep
2467 	 */
2468 	if (ret)
2469 		goto free_cmd_skb;
2470 
2471 	/*
2472 	 * Send sync cmd followed by sync data messages on all
2473 	 * endpoints being used
2474 	 */
2475 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SYNCHRONIZE_CMDID,
2476 				  NO_SYNC_WMIFLAG);
2477 
2478 	if (ret)
2479 		goto free_data_skb;
2480 
2481 	for (index = 0; index < num_pri_streams; index++) {
2482 
2483 		if (WARN_ON(!data_sync_bufs[index].skb))
2484 			goto free_data_skb;
2485 
2486 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev,
2487 					       data_sync_bufs[index].
2488 					       traffic_class);
2489 		ret =
2490 		    ath6kl_wmi_data_sync_send(wmi, data_sync_bufs[index].skb,
2491 					      ep_id, if_idx);
2492 
2493 		data_sync_bufs[index].skb = NULL;
2494 
2495 		if (ret)
2496 			goto free_data_skb;
2497 	}
2498 
2499 	return 0;
2500 
2501 free_cmd_skb:
2502 	/* free up any resources left over (possibly due to an error) */
2503 	dev_kfree_skb(skb);
2504 
2505 free_data_skb:
2506 	for (index = 0; index < num_pri_streams; index++)
2507 		dev_kfree_skb((struct sk_buff *)data_sync_bufs[index].skb);
2508 
2509 	return ret;
2510 }
2511 
2512 int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, u8 if_idx,
2513 				  struct wmi_create_pstream_cmd *params)
2514 {
2515 	struct sk_buff *skb;
2516 	struct wmi_create_pstream_cmd *cmd;
2517 	u8 fatpipe_exist_for_ac = 0;
2518 	s32 min_phy = 0;
2519 	s32 nominal_phy = 0;
2520 	int ret;
2521 
2522 	if (!((params->user_pri < 8) &&
2523 	      (params->user_pri <= 0x7) &&
2524 	      (up_to_ac[params->user_pri & 0x7] == params->traffic_class) &&
2525 	      (params->traffic_direc == UPLINK_TRAFFIC ||
2526 	       params->traffic_direc == DNLINK_TRAFFIC ||
2527 	       params->traffic_direc == BIDIR_TRAFFIC) &&
2528 	      (params->traffic_type == TRAFFIC_TYPE_APERIODIC ||
2529 	       params->traffic_type == TRAFFIC_TYPE_PERIODIC) &&
2530 	      (params->voice_psc_cap == DISABLE_FOR_THIS_AC ||
2531 	       params->voice_psc_cap == ENABLE_FOR_THIS_AC ||
2532 	       params->voice_psc_cap == ENABLE_FOR_ALL_AC) &&
2533 	      (params->tsid == WMI_IMPLICIT_PSTREAM ||
2534 	       params->tsid <= WMI_MAX_THINSTREAM))) {
2535 		return -EINVAL;
2536 	}
2537 
2538 	/*
2539 	 * Check nominal PHY rate is >= minimalPHY,
2540 	 * so that DUT can allow TSRS IE
2541 	 */
2542 
2543 	/* Get the physical rate (units of bps) */
2544 	min_phy = ((le32_to_cpu(params->min_phy_rate) / 1000) / 1000);
2545 
2546 	/* Check minimal phy < nominal phy rate */
2547 	if (params->nominal_phy >= min_phy) {
2548 		/* unit of 500 kbps */
2549 		nominal_phy = (params->nominal_phy * 1000) / 500;
2550 		ath6kl_dbg(ATH6KL_DBG_WMI,
2551 			   "TSRS IE enabled::MinPhy %x->NominalPhy ===> %x\n",
2552 			   min_phy, nominal_phy);
2553 
2554 		params->nominal_phy = nominal_phy;
2555 	} else {
2556 		params->nominal_phy = 0;
2557 	}
2558 
2559 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2560 	if (!skb)
2561 		return -ENOMEM;
2562 
2563 	ath6kl_dbg(ATH6KL_DBG_WMI,
2564 		   "sending create_pstream_cmd: ac=%d  tsid:%d\n",
2565 		   params->traffic_class, params->tsid);
2566 
2567 	cmd = (struct wmi_create_pstream_cmd *) skb->data;
2568 	memcpy(cmd, params, sizeof(*cmd));
2569 
2570 	/* This is an implicitly created Fat pipe */
2571 	if ((u32) params->tsid == (u32) WMI_IMPLICIT_PSTREAM) {
2572 		spin_lock_bh(&wmi->lock);
2573 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2574 					(1 << params->traffic_class));
2575 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2576 		spin_unlock_bh(&wmi->lock);
2577 	} else {
2578 		/* explicitly created thin stream within a fat pipe */
2579 		spin_lock_bh(&wmi->lock);
2580 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2581 					(1 << params->traffic_class));
2582 		wmi->stream_exist_for_ac[params->traffic_class] |=
2583 		    (1 << params->tsid);
2584 		/*
2585 		 * If a thinstream becomes active, the fat pipe automatically
2586 		 * becomes active
2587 		 */
2588 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2589 		spin_unlock_bh(&wmi->lock);
2590 	}
2591 
2592 	/*
2593 	 * Indicate activty change to driver layer only if this is the
2594 	 * first TSID to get created in this AC explicitly or an implicit
2595 	 * fat pipe is getting created.
2596 	 */
2597 	if (!fatpipe_exist_for_ac)
2598 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2599 					    params->traffic_class, true);
2600 
2601 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CREATE_PSTREAM_CMDID,
2602 				  NO_SYNC_WMIFLAG);
2603 	return ret;
2604 }
2605 
2606 int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 if_idx, u8 traffic_class,
2607 				  u8 tsid)
2608 {
2609 	struct sk_buff *skb;
2610 	struct wmi_delete_pstream_cmd *cmd;
2611 	u16 active_tsids = 0;
2612 	int ret;
2613 
2614 	if (traffic_class > 3) {
2615 		ath6kl_err("invalid traffic class: %d\n", traffic_class);
2616 		return -EINVAL;
2617 	}
2618 
2619 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2620 	if (!skb)
2621 		return -ENOMEM;
2622 
2623 	cmd = (struct wmi_delete_pstream_cmd *) skb->data;
2624 	cmd->traffic_class = traffic_class;
2625 	cmd->tsid = tsid;
2626 
2627 	spin_lock_bh(&wmi->lock);
2628 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2629 	spin_unlock_bh(&wmi->lock);
2630 
2631 	if (!(active_tsids & (1 << tsid))) {
2632 		dev_kfree_skb(skb);
2633 		ath6kl_dbg(ATH6KL_DBG_WMI,
2634 			   "TSID %d doesn't exist for traffic class: %d\n",
2635 			   tsid, traffic_class);
2636 		return -ENODATA;
2637 	}
2638 
2639 	ath6kl_dbg(ATH6KL_DBG_WMI,
2640 		   "sending delete_pstream_cmd: traffic class: %d tsid=%d\n",
2641 		   traffic_class, tsid);
2642 
2643 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_PSTREAM_CMDID,
2644 				  SYNC_BEFORE_WMIFLAG);
2645 
2646 	spin_lock_bh(&wmi->lock);
2647 	wmi->stream_exist_for_ac[traffic_class] &= ~(1 << tsid);
2648 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2649 	spin_unlock_bh(&wmi->lock);
2650 
2651 	/*
2652 	 * Indicate stream inactivity to driver layer only if all tsids
2653 	 * within this AC are deleted.
2654 	 */
2655 	if (!active_tsids) {
2656 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2657 					    traffic_class, false);
2658 		wmi->fat_pipe_exist &= ~(1 << traffic_class);
2659 	}
2660 
2661 	return ret;
2662 }
2663 
2664 int ath6kl_wmi_set_ip_cmd(struct wmi *wmi, u8 if_idx,
2665 			  __be32 ips0, __be32 ips1)
2666 {
2667 	struct sk_buff *skb;
2668 	struct wmi_set_ip_cmd *cmd;
2669 	int ret;
2670 
2671 	/* Multicast address are not valid */
2672 	if (ipv4_is_multicast(ips0) ||
2673 	    ipv4_is_multicast(ips1))
2674 		return -EINVAL;
2675 
2676 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_ip_cmd));
2677 	if (!skb)
2678 		return -ENOMEM;
2679 
2680 	cmd = (struct wmi_set_ip_cmd *) skb->data;
2681 	cmd->ips[0] = ips0;
2682 	cmd->ips[1] = ips1;
2683 
2684 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IP_CMDID,
2685 				  NO_SYNC_WMIFLAG);
2686 	return ret;
2687 }
2688 
2689 static void ath6kl_wmi_relinquish_implicit_pstream_credits(struct wmi *wmi)
2690 {
2691 	u16 active_tsids;
2692 	u8 stream_exist;
2693 	int i;
2694 
2695 	/*
2696 	 * Relinquish credits from all implicitly created pstreams
2697 	 * since when we go to sleep. If user created explicit
2698 	 * thinstreams exists with in a fatpipe leave them intact
2699 	 * for the user to delete.
2700 	 */
2701 	spin_lock_bh(&wmi->lock);
2702 	stream_exist = wmi->fat_pipe_exist;
2703 	spin_unlock_bh(&wmi->lock);
2704 
2705 	for (i = 0; i < WMM_NUM_AC; i++) {
2706 		if (stream_exist & (1 << i)) {
2707 
2708 			/*
2709 			 * FIXME: Is this lock & unlock inside
2710 			 * for loop correct? may need rework.
2711 			 */
2712 			spin_lock_bh(&wmi->lock);
2713 			active_tsids = wmi->stream_exist_for_ac[i];
2714 			spin_unlock_bh(&wmi->lock);
2715 
2716 			/*
2717 			 * If there are no user created thin streams
2718 			 * delete the fatpipe
2719 			 */
2720 			if (!active_tsids) {
2721 				stream_exist &= ~(1 << i);
2722 				/*
2723 				 * Indicate inactivity to driver layer for
2724 				 * this fatpipe (pstream)
2725 				 */
2726 				ath6kl_indicate_tx_activity(wmi->parent_dev,
2727 							    i, false);
2728 			}
2729 		}
2730 	}
2731 
2732 	/* FIXME: Can we do this assignment without locking ? */
2733 	spin_lock_bh(&wmi->lock);
2734 	wmi->fat_pipe_exist = stream_exist;
2735 	spin_unlock_bh(&wmi->lock);
2736 }
2737 
2738 static int ath6kl_set_bitrate_mask64(struct wmi *wmi, u8 if_idx,
2739 				     const struct cfg80211_bitrate_mask *mask)
2740 {
2741 	struct sk_buff *skb;
2742 	int ret, mode, band;
2743 	u64 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2744 	struct wmi_set_tx_select_rates64_cmd *cmd;
2745 
2746 	memset(&ratemask, 0, sizeof(ratemask));
2747 
2748 	/* only check 2.4 and 5 GHz bands, skip the rest */
2749 	for (band = 0; band <= IEEE80211_BAND_5GHZ; band++) {
2750 		/* copy legacy rate mask */
2751 		ratemask[band] = mask->control[band].legacy;
2752 		if (band == IEEE80211_BAND_5GHZ)
2753 			ratemask[band] =
2754 				mask->control[band].legacy << 4;
2755 
2756 		/* copy mcs rate mask */
2757 		mcsrate = mask->control[band].ht_mcs[1];
2758 		mcsrate <<= 8;
2759 		mcsrate |= mask->control[band].ht_mcs[0];
2760 		ratemask[band] |= mcsrate << 12;
2761 		ratemask[band] |= mcsrate << 28;
2762 	}
2763 
2764 	ath6kl_dbg(ATH6KL_DBG_WMI,
2765 		   "Ratemask 64 bit: 2.4:%llx 5:%llx\n",
2766 		   ratemask[0], ratemask[1]);
2767 
2768 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2769 	if (!skb)
2770 		return -ENOMEM;
2771 
2772 	cmd = (struct wmi_set_tx_select_rates64_cmd *) skb->data;
2773 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2774 		/* A mode operate in 5GHZ band */
2775 		if (mode == WMI_RATES_MODE_11A ||
2776 		    mode == WMI_RATES_MODE_11A_HT20 ||
2777 		    mode == WMI_RATES_MODE_11A_HT40)
2778 			band = IEEE80211_BAND_5GHZ;
2779 		else
2780 			band = IEEE80211_BAND_2GHZ;
2781 		cmd->ratemask[mode] = cpu_to_le64(ratemask[band]);
2782 	}
2783 
2784 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2785 				  WMI_SET_TX_SELECT_RATES_CMDID,
2786 				  NO_SYNC_WMIFLAG);
2787 	return ret;
2788 }
2789 
2790 static int ath6kl_set_bitrate_mask32(struct wmi *wmi, u8 if_idx,
2791 				     const struct cfg80211_bitrate_mask *mask)
2792 {
2793 	struct sk_buff *skb;
2794 	int ret, mode, band;
2795 	u32 mcsrate, ratemask[ATH6KL_NUM_BANDS];
2796 	struct wmi_set_tx_select_rates32_cmd *cmd;
2797 
2798 	memset(&ratemask, 0, sizeof(ratemask));
2799 
2800 	/* only check 2.4 and 5 GHz bands, skip the rest */
2801 	for (band = 0; band <= IEEE80211_BAND_5GHZ; band++) {
2802 		/* copy legacy rate mask */
2803 		ratemask[band] = mask->control[band].legacy;
2804 		if (band == IEEE80211_BAND_5GHZ)
2805 			ratemask[band] =
2806 				mask->control[band].legacy << 4;
2807 
2808 		/* copy mcs rate mask */
2809 		mcsrate = mask->control[band].ht_mcs[0];
2810 		ratemask[band] |= mcsrate << 12;
2811 		ratemask[band] |= mcsrate << 20;
2812 	}
2813 
2814 	ath6kl_dbg(ATH6KL_DBG_WMI,
2815 		   "Ratemask 32 bit: 2.4:%x 5:%x\n",
2816 		   ratemask[0], ratemask[1]);
2817 
2818 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd) * WMI_RATES_MODE_MAX);
2819 	if (!skb)
2820 		return -ENOMEM;
2821 
2822 	cmd = (struct wmi_set_tx_select_rates32_cmd *) skb->data;
2823 	for (mode = 0; mode < WMI_RATES_MODE_MAX; mode++) {
2824 		/* A mode operate in 5GHZ band */
2825 		if (mode == WMI_RATES_MODE_11A ||
2826 		    mode == WMI_RATES_MODE_11A_HT20 ||
2827 		    mode == WMI_RATES_MODE_11A_HT40)
2828 			band = IEEE80211_BAND_5GHZ;
2829 		else
2830 			band = IEEE80211_BAND_2GHZ;
2831 		cmd->ratemask[mode] = cpu_to_le32(ratemask[band]);
2832 	}
2833 
2834 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2835 				  WMI_SET_TX_SELECT_RATES_CMDID,
2836 				  NO_SYNC_WMIFLAG);
2837 	return ret;
2838 }
2839 
2840 int ath6kl_wmi_set_bitrate_mask(struct wmi *wmi, u8 if_idx,
2841 				const struct cfg80211_bitrate_mask *mask)
2842 {
2843 	struct ath6kl *ar = wmi->parent_dev;
2844 
2845 	if (ar->hw.flags & ATH6KL_HW_64BIT_RATES)
2846 		return ath6kl_set_bitrate_mask64(wmi, if_idx, mask);
2847 	else
2848 		return ath6kl_set_bitrate_mask32(wmi, if_idx, mask);
2849 }
2850 
2851 int ath6kl_wmi_set_host_sleep_mode_cmd(struct wmi *wmi, u8 if_idx,
2852 				       enum ath6kl_host_mode host_mode)
2853 {
2854 	struct sk_buff *skb;
2855 	struct wmi_set_host_sleep_mode_cmd *cmd;
2856 	int ret;
2857 
2858 	if ((host_mode != ATH6KL_HOST_MODE_ASLEEP) &&
2859 	    (host_mode != ATH6KL_HOST_MODE_AWAKE)) {
2860 		ath6kl_err("invalid host sleep mode: %d\n", host_mode);
2861 		return -EINVAL;
2862 	}
2863 
2864 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2865 	if (!skb)
2866 		return -ENOMEM;
2867 
2868 	cmd = (struct wmi_set_host_sleep_mode_cmd *) skb->data;
2869 
2870 	if (host_mode == ATH6KL_HOST_MODE_ASLEEP) {
2871 		ath6kl_wmi_relinquish_implicit_pstream_credits(wmi);
2872 		cmd->asleep = cpu_to_le32(1);
2873 	} else
2874 		cmd->awake = cpu_to_le32(1);
2875 
2876 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2877 				  WMI_SET_HOST_SLEEP_MODE_CMDID,
2878 				  NO_SYNC_WMIFLAG);
2879 	return ret;
2880 }
2881 
2882 /* This command has zero length payload */
2883 static int ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(struct wmi *wmi,
2884 						      struct ath6kl_vif *vif)
2885 {
2886 	struct ath6kl *ar = wmi->parent_dev;
2887 
2888 	set_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2889 	wake_up(&ar->event_wq);
2890 
2891 	return 0;
2892 }
2893 
2894 int ath6kl_wmi_set_wow_mode_cmd(struct wmi *wmi, u8 if_idx,
2895 				enum ath6kl_wow_mode wow_mode,
2896 				u32 filter, u16 host_req_delay)
2897 {
2898 	struct sk_buff *skb;
2899 	struct wmi_set_wow_mode_cmd *cmd;
2900 	int ret;
2901 
2902 	if ((wow_mode != ATH6KL_WOW_MODE_ENABLE) &&
2903 	    wow_mode != ATH6KL_WOW_MODE_DISABLE) {
2904 		ath6kl_err("invalid wow mode: %d\n", wow_mode);
2905 		return -EINVAL;
2906 	}
2907 
2908 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2909 	if (!skb)
2910 		return -ENOMEM;
2911 
2912 	cmd = (struct wmi_set_wow_mode_cmd *) skb->data;
2913 	cmd->enable_wow = cpu_to_le32(wow_mode);
2914 	cmd->filter = cpu_to_le32(filter);
2915 	cmd->host_req_delay = cpu_to_le16(host_req_delay);
2916 
2917 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WOW_MODE_CMDID,
2918 				  NO_SYNC_WMIFLAG);
2919 	return ret;
2920 }
2921 
2922 int ath6kl_wmi_add_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2923 				   u8 list_id, u8 filter_size,
2924 				   u8 filter_offset, const u8 *filter,
2925 				   const u8 *mask)
2926 {
2927 	struct sk_buff *skb;
2928 	struct wmi_add_wow_pattern_cmd *cmd;
2929 	u16 size;
2930 	u8 *filter_mask;
2931 	int ret;
2932 
2933 	/*
2934 	 * Allocate additional memory in the buffer to hold
2935 	 * filter and mask value, which is twice of filter_size.
2936 	 */
2937 	size = sizeof(*cmd) + (2 * filter_size);
2938 
2939 	skb = ath6kl_wmi_get_new_buf(size);
2940 	if (!skb)
2941 		return -ENOMEM;
2942 
2943 	cmd = (struct wmi_add_wow_pattern_cmd *) skb->data;
2944 	cmd->filter_list_id = list_id;
2945 	cmd->filter_size = filter_size;
2946 	cmd->filter_offset = filter_offset;
2947 
2948 	memcpy(cmd->filter, filter, filter_size);
2949 
2950 	filter_mask = (u8 *) (cmd->filter + filter_size);
2951 	memcpy(filter_mask, mask, filter_size);
2952 
2953 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_WOW_PATTERN_CMDID,
2954 				  NO_SYNC_WMIFLAG);
2955 
2956 	return ret;
2957 }
2958 
2959 int ath6kl_wmi_del_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2960 				   u16 list_id, u16 filter_id)
2961 {
2962 	struct sk_buff *skb;
2963 	struct wmi_del_wow_pattern_cmd *cmd;
2964 	int ret;
2965 
2966 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2967 	if (!skb)
2968 		return -ENOMEM;
2969 
2970 	cmd = (struct wmi_del_wow_pattern_cmd *) skb->data;
2971 	cmd->filter_list_id = cpu_to_le16(list_id);
2972 	cmd->filter_id = cpu_to_le16(filter_id);
2973 
2974 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DEL_WOW_PATTERN_CMDID,
2975 				  NO_SYNC_WMIFLAG);
2976 	return ret;
2977 }
2978 
2979 static int ath6kl_wmi_cmd_send_xtnd(struct wmi *wmi, struct sk_buff *skb,
2980 				    enum wmix_command_id cmd_id,
2981 				    enum wmi_sync_flag sync_flag)
2982 {
2983 	struct wmix_cmd_hdr *cmd_hdr;
2984 	int ret;
2985 
2986 	skb_push(skb, sizeof(struct wmix_cmd_hdr));
2987 
2988 	cmd_hdr = (struct wmix_cmd_hdr *) skb->data;
2989 	cmd_hdr->cmd_id = cpu_to_le32(cmd_id);
2990 
2991 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_EXTENSION_CMDID, sync_flag);
2992 
2993 	return ret;
2994 }
2995 
2996 int ath6kl_wmi_get_challenge_resp_cmd(struct wmi *wmi, u32 cookie, u32 source)
2997 {
2998 	struct sk_buff *skb;
2999 	struct wmix_hb_challenge_resp_cmd *cmd;
3000 	int ret;
3001 
3002 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3003 	if (!skb)
3004 		return -ENOMEM;
3005 
3006 	cmd = (struct wmix_hb_challenge_resp_cmd *) skb->data;
3007 	cmd->cookie = cpu_to_le32(cookie);
3008 	cmd->source = cpu_to_le32(source);
3009 
3010 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_HB_CHALLENGE_RESP_CMDID,
3011 				       NO_SYNC_WMIFLAG);
3012 	return ret;
3013 }
3014 
3015 int ath6kl_wmi_config_debug_module_cmd(struct wmi *wmi, u32 valid, u32 config)
3016 {
3017 	struct ath6kl_wmix_dbglog_cfg_module_cmd *cmd;
3018 	struct sk_buff *skb;
3019 	int ret;
3020 
3021 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3022 	if (!skb)
3023 		return -ENOMEM;
3024 
3025 	cmd = (struct ath6kl_wmix_dbglog_cfg_module_cmd *) skb->data;
3026 	cmd->valid = cpu_to_le32(valid);
3027 	cmd->config = cpu_to_le32(config);
3028 
3029 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_DBGLOG_CFG_MODULE_CMDID,
3030 				       NO_SYNC_WMIFLAG);
3031 	return ret;
3032 }
3033 
3034 int ath6kl_wmi_get_stats_cmd(struct wmi *wmi, u8 if_idx)
3035 {
3036 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_STATISTICS_CMDID);
3037 }
3038 
3039 int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 if_idx, u8 dbM)
3040 {
3041 	struct sk_buff *skb;
3042 	struct wmi_set_tx_pwr_cmd *cmd;
3043 	int ret;
3044 
3045 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_tx_pwr_cmd));
3046 	if (!skb)
3047 		return -ENOMEM;
3048 
3049 	cmd = (struct wmi_set_tx_pwr_cmd *) skb->data;
3050 	cmd->dbM = dbM;
3051 
3052 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_TX_PWR_CMDID,
3053 				  NO_SYNC_WMIFLAG);
3054 
3055 	return ret;
3056 }
3057 
3058 int ath6kl_wmi_get_tx_pwr_cmd(struct wmi *wmi, u8 if_idx)
3059 {
3060 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_TX_PWR_CMDID);
3061 }
3062 
3063 int ath6kl_wmi_get_roam_tbl_cmd(struct wmi *wmi)
3064 {
3065 	return ath6kl_wmi_simple_cmd(wmi, 0, WMI_GET_ROAM_TBL_CMDID);
3066 }
3067 
3068 int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 if_idx, u8 status,
3069 				 u8 preamble_policy)
3070 {
3071 	struct sk_buff *skb;
3072 	struct wmi_set_lpreamble_cmd *cmd;
3073 	int ret;
3074 
3075 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_lpreamble_cmd));
3076 	if (!skb)
3077 		return -ENOMEM;
3078 
3079 	cmd = (struct wmi_set_lpreamble_cmd *) skb->data;
3080 	cmd->status = status;
3081 	cmd->preamble_policy = preamble_policy;
3082 
3083 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LPREAMBLE_CMDID,
3084 				  NO_SYNC_WMIFLAG);
3085 	return ret;
3086 }
3087 
3088 int ath6kl_wmi_set_rts_cmd(struct wmi *wmi, u16 threshold)
3089 {
3090 	struct sk_buff *skb;
3091 	struct wmi_set_rts_cmd *cmd;
3092 	int ret;
3093 
3094 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_rts_cmd));
3095 	if (!skb)
3096 		return -ENOMEM;
3097 
3098 	cmd = (struct wmi_set_rts_cmd *) skb->data;
3099 	cmd->threshold = cpu_to_le16(threshold);
3100 
3101 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_RTS_CMDID,
3102 				  NO_SYNC_WMIFLAG);
3103 	return ret;
3104 }
3105 
3106 int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, u8 if_idx, enum wmi_txop_cfg cfg)
3107 {
3108 	struct sk_buff *skb;
3109 	struct wmi_set_wmm_txop_cmd *cmd;
3110 	int ret;
3111 
3112 	if (!((cfg == WMI_TXOP_DISABLED) || (cfg == WMI_TXOP_ENABLED)))
3113 		return -EINVAL;
3114 
3115 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_wmm_txop_cmd));
3116 	if (!skb)
3117 		return -ENOMEM;
3118 
3119 	cmd = (struct wmi_set_wmm_txop_cmd *) skb->data;
3120 	cmd->txop_enable = cfg;
3121 
3122 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WMM_TXOP_CMDID,
3123 				  NO_SYNC_WMIFLAG);
3124 	return ret;
3125 }
3126 
3127 int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 if_idx,
3128 				 u8 keep_alive_intvl)
3129 {
3130 	struct sk_buff *skb;
3131 	struct wmi_set_keepalive_cmd *cmd;
3132 	int ret;
3133 
3134 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3135 	if (!skb)
3136 		return -ENOMEM;
3137 
3138 	cmd = (struct wmi_set_keepalive_cmd *) skb->data;
3139 	cmd->keep_alive_intvl = keep_alive_intvl;
3140 
3141 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_KEEPALIVE_CMDID,
3142 				  NO_SYNC_WMIFLAG);
3143 
3144 	if (ret == 0)
3145 		ath6kl_debug_set_keepalive(wmi->parent_dev, keep_alive_intvl);
3146 
3147 	return ret;
3148 }
3149 
3150 int ath6kl_wmi_set_htcap_cmd(struct wmi *wmi, u8 if_idx,
3151 			     enum ieee80211_band band,
3152 			     struct ath6kl_htcap *htcap)
3153 {
3154 	struct sk_buff *skb;
3155 	struct wmi_set_htcap_cmd *cmd;
3156 
3157 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3158 	if (!skb)
3159 		return -ENOMEM;
3160 
3161 	cmd = (struct wmi_set_htcap_cmd *) skb->data;
3162 
3163 	/*
3164 	 * NOTE: Band in firmware matches enum ieee80211_band, it is unlikely
3165 	 * this will be changed in firmware. If at all there is any change in
3166 	 * band value, the host needs to be fixed.
3167 	 */
3168 	cmd->band = band;
3169 	cmd->ht_enable = !!htcap->ht_enable;
3170 	cmd->ht20_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_20);
3171 	cmd->ht40_supported =
3172 		!!(htcap->cap_info & IEEE80211_HT_CAP_SUP_WIDTH_20_40);
3173 	cmd->ht40_sgi = !!(htcap->cap_info & IEEE80211_HT_CAP_SGI_40);
3174 	cmd->intolerant_40mhz =
3175 		!!(htcap->cap_info & IEEE80211_HT_CAP_40MHZ_INTOLERANT);
3176 	cmd->max_ampdu_len_exp = htcap->ampdu_factor;
3177 
3178 	ath6kl_dbg(ATH6KL_DBG_WMI,
3179 		   "Set htcap: band:%d ht_enable:%d 40mhz:%d sgi_20mhz:%d sgi_40mhz:%d 40mhz_intolerant:%d ampdu_len_exp:%d\n",
3180 		   cmd->band, cmd->ht_enable, cmd->ht40_supported,
3181 		   cmd->ht20_sgi, cmd->ht40_sgi, cmd->intolerant_40mhz,
3182 		   cmd->max_ampdu_len_exp);
3183 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_HT_CAP_CMDID,
3184 				   NO_SYNC_WMIFLAG);
3185 }
3186 
3187 int ath6kl_wmi_test_cmd(struct wmi *wmi, void *buf, size_t len)
3188 {
3189 	struct sk_buff *skb;
3190 	int ret;
3191 
3192 	skb = ath6kl_wmi_get_new_buf(len);
3193 	if (!skb)
3194 		return -ENOMEM;
3195 
3196 	memcpy(skb->data, buf, len);
3197 
3198 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_TEST_CMDID, NO_SYNC_WMIFLAG);
3199 
3200 	return ret;
3201 }
3202 
3203 int ath6kl_wmi_mcast_filter_cmd(struct wmi *wmi, u8 if_idx, bool mc_all_on)
3204 {
3205 	struct sk_buff *skb;
3206 	struct wmi_mcast_filter_cmd *cmd;
3207 	int ret;
3208 
3209 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3210 	if (!skb)
3211 		return -ENOMEM;
3212 
3213 	cmd = (struct wmi_mcast_filter_cmd *) skb->data;
3214 	cmd->mcast_all_enable = mc_all_on;
3215 
3216 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_MCAST_FILTER_CMDID,
3217 				  NO_SYNC_WMIFLAG);
3218 	return ret;
3219 }
3220 
3221 int ath6kl_wmi_add_del_mcast_filter_cmd(struct wmi *wmi, u8 if_idx,
3222 					u8 *filter, bool add_filter)
3223 {
3224 	struct sk_buff *skb;
3225 	struct wmi_mcast_filter_add_del_cmd *cmd;
3226 	int ret;
3227 
3228 	if ((filter[0] != 0x33 || filter[1] != 0x33) &&
3229 	    (filter[0] != 0x01 || filter[1] != 0x00 ||
3230 	    filter[2] != 0x5e || filter[3] > 0x7f)) {
3231 		ath6kl_warn("invalid multicast filter address\n");
3232 		return -EINVAL;
3233 	}
3234 
3235 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3236 	if (!skb)
3237 		return -ENOMEM;
3238 
3239 	cmd = (struct wmi_mcast_filter_add_del_cmd *) skb->data;
3240 	memcpy(cmd->mcast_mac, filter, ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
3241 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3242 				  add_filter ? WMI_SET_MCAST_FILTER_CMDID :
3243 				  WMI_DEL_MCAST_FILTER_CMDID,
3244 				  NO_SYNC_WMIFLAG);
3245 
3246 	return ret;
3247 }
3248 
3249 int ath6kl_wmi_sta_bmiss_enhance_cmd(struct wmi *wmi, u8 if_idx, bool enhance)
3250 {
3251 	struct sk_buff *skb;
3252 	struct wmi_sta_bmiss_enhance_cmd *cmd;
3253 	int ret;
3254 
3255 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3256 	if (!skb)
3257 		return -ENOMEM;
3258 
3259 	cmd = (struct wmi_sta_bmiss_enhance_cmd *) skb->data;
3260 	cmd->enable = enhance ? 1 : 0;
3261 
3262 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3263 				  WMI_STA_BMISS_ENHANCE_CMDID,
3264 				  NO_SYNC_WMIFLAG);
3265 	return ret;
3266 }
3267 
3268 int ath6kl_wmi_set_regdomain_cmd(struct wmi *wmi, const char *alpha2)
3269 {
3270 	struct sk_buff *skb;
3271 	struct wmi_set_regdomain_cmd *cmd;
3272 
3273 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3274 	if (!skb)
3275 		return -ENOMEM;
3276 
3277 	cmd = (struct wmi_set_regdomain_cmd *) skb->data;
3278 	memcpy(cmd->iso_name, alpha2, 2);
3279 
3280 	return ath6kl_wmi_cmd_send(wmi, 0, skb,
3281 				   WMI_SET_REGDOMAIN_CMDID,
3282 				   NO_SYNC_WMIFLAG);
3283 }
3284 
3285 s32 ath6kl_wmi_get_rate(s8 rate_index)
3286 {
3287 	u8 sgi = 0;
3288 
3289 	if (rate_index == RATE_AUTO)
3290 		return 0;
3291 
3292 	/* SGI is stored as the MSB of the rate_index */
3293 	if (rate_index & RATE_INDEX_MSB) {
3294 		rate_index &= RATE_INDEX_WITHOUT_SGI_MASK;
3295 		sgi = 1;
3296 	}
3297 
3298 	if (WARN_ON(rate_index > RATE_MCS_7_40))
3299 		rate_index = RATE_MCS_7_40;
3300 
3301 	return wmi_rate_tbl[(u32) rate_index][sgi];
3302 }
3303 
3304 static int ath6kl_wmi_get_pmkid_list_event_rx(struct wmi *wmi, u8 *datap,
3305 					      u32 len)
3306 {
3307 	struct wmi_pmkid_list_reply *reply;
3308 	u32 expected_len;
3309 
3310 	if (len < sizeof(struct wmi_pmkid_list_reply))
3311 		return -EINVAL;
3312 
3313 	reply = (struct wmi_pmkid_list_reply *)datap;
3314 	expected_len = sizeof(reply->num_pmkid) +
3315 		le32_to_cpu(reply->num_pmkid) * WMI_PMKID_LEN;
3316 
3317 	if (len < expected_len)
3318 		return -EINVAL;
3319 
3320 	return 0;
3321 }
3322 
3323 static int ath6kl_wmi_addba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3324 					 struct ath6kl_vif *vif)
3325 {
3326 	struct wmi_addba_req_event *cmd = (struct wmi_addba_req_event *) datap;
3327 
3328 	aggr_recv_addba_req_evt(vif, cmd->tid,
3329 				le16_to_cpu(cmd->st_seq_no), cmd->win_sz);
3330 
3331 	return 0;
3332 }
3333 
3334 static int ath6kl_wmi_delba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
3335 					 struct ath6kl_vif *vif)
3336 {
3337 	struct wmi_delba_event *cmd = (struct wmi_delba_event *) datap;
3338 
3339 	aggr_recv_delba_req_evt(vif, cmd->tid);
3340 
3341 	return 0;
3342 }
3343 
3344 /*  AP mode functions */
3345 
3346 int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, u8 if_idx,
3347 				 struct wmi_connect_cmd *p)
3348 {
3349 	struct sk_buff *skb;
3350 	struct wmi_connect_cmd *cm;
3351 	int res;
3352 
3353 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3354 	if (!skb)
3355 		return -ENOMEM;
3356 
3357 	cm = (struct wmi_connect_cmd *) skb->data;
3358 	memcpy(cm, p, sizeof(*cm));
3359 
3360 	res = ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_CONFIG_COMMIT_CMDID,
3361 				  NO_SYNC_WMIFLAG);
3362 	ath6kl_dbg(ATH6KL_DBG_WMI,
3363 		   "%s: nw_type=%u auth_mode=%u ch=%u ctrl_flags=0x%x-> res=%d\n",
3364 		   __func__, p->nw_type, p->auth_mode, le16_to_cpu(p->ch),
3365 		   le32_to_cpu(p->ctrl_flags), res);
3366 	return res;
3367 }
3368 
3369 int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 if_idx, u8 cmd, const u8 *mac,
3370 			   u16 reason)
3371 {
3372 	struct sk_buff *skb;
3373 	struct wmi_ap_set_mlme_cmd *cm;
3374 
3375 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3376 	if (!skb)
3377 		return -ENOMEM;
3378 
3379 	cm = (struct wmi_ap_set_mlme_cmd *) skb->data;
3380 	memcpy(cm->mac, mac, ETH_ALEN);
3381 	cm->reason = cpu_to_le16(reason);
3382 	cm->cmd = cmd;
3383 
3384 	ath6kl_dbg(ATH6KL_DBG_WMI, "ap_set_mlme: cmd=%d reason=%d\n", cm->cmd,
3385 		   cm->reason);
3386 
3387 	return ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_SET_MLME_CMDID,
3388 				   NO_SYNC_WMIFLAG);
3389 }
3390 
3391 int ath6kl_wmi_ap_hidden_ssid(struct wmi *wmi, u8 if_idx, bool enable)
3392 {
3393 	struct sk_buff *skb;
3394 	struct wmi_ap_hidden_ssid_cmd *cmd;
3395 
3396 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3397 	if (!skb)
3398 		return -ENOMEM;
3399 
3400 	cmd = (struct wmi_ap_hidden_ssid_cmd *) skb->data;
3401 	cmd->hidden_ssid = enable ? 1 : 0;
3402 
3403 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_HIDDEN_SSID_CMDID,
3404 				   NO_SYNC_WMIFLAG);
3405 }
3406 
3407 /* This command will be used to enable/disable AP uAPSD feature */
3408 int ath6kl_wmi_ap_set_apsd(struct wmi *wmi, u8 if_idx, u8 enable)
3409 {
3410 	struct wmi_ap_set_apsd_cmd *cmd;
3411 	struct sk_buff *skb;
3412 
3413 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3414 	if (!skb)
3415 		return -ENOMEM;
3416 
3417 	cmd = (struct wmi_ap_set_apsd_cmd *)skb->data;
3418 	cmd->enable = enable;
3419 
3420 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_APSD_CMDID,
3421 				   NO_SYNC_WMIFLAG);
3422 }
3423 
3424 int ath6kl_wmi_set_apsd_bfrd_traf(struct wmi *wmi, u8 if_idx,
3425 					     u16 aid, u16 bitmap, u32 flags)
3426 {
3427 	struct wmi_ap_apsd_buffered_traffic_cmd *cmd;
3428 	struct sk_buff *skb;
3429 
3430 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3431 	if (!skb)
3432 		return -ENOMEM;
3433 
3434 	cmd = (struct wmi_ap_apsd_buffered_traffic_cmd *)skb->data;
3435 	cmd->aid = cpu_to_le16(aid);
3436 	cmd->bitmap = cpu_to_le16(bitmap);
3437 	cmd->flags = cpu_to_le32(flags);
3438 
3439 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3440 				   WMI_AP_APSD_BUFFERED_TRAFFIC_CMDID,
3441 				   NO_SYNC_WMIFLAG);
3442 }
3443 
3444 static int ath6kl_wmi_pspoll_event_rx(struct wmi *wmi, u8 *datap, int len,
3445 				      struct ath6kl_vif *vif)
3446 {
3447 	struct wmi_pspoll_event *ev;
3448 
3449 	if (len < sizeof(struct wmi_pspoll_event))
3450 		return -EINVAL;
3451 
3452 	ev = (struct wmi_pspoll_event *) datap;
3453 
3454 	ath6kl_pspoll_event(vif, le16_to_cpu(ev->aid));
3455 
3456 	return 0;
3457 }
3458 
3459 static int ath6kl_wmi_dtimexpiry_event_rx(struct wmi *wmi, u8 *datap, int len,
3460 					  struct ath6kl_vif *vif)
3461 {
3462 	ath6kl_dtimexpiry_event(vif);
3463 
3464 	return 0;
3465 }
3466 
3467 int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u8 if_idx, u16 aid,
3468 			   bool flag)
3469 {
3470 	struct sk_buff *skb;
3471 	struct wmi_ap_set_pvb_cmd *cmd;
3472 	int ret;
3473 
3474 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_ap_set_pvb_cmd));
3475 	if (!skb)
3476 		return -ENOMEM;
3477 
3478 	cmd = (struct wmi_ap_set_pvb_cmd *) skb->data;
3479 	cmd->aid = cpu_to_le16(aid);
3480 	cmd->rsvd = cpu_to_le16(0);
3481 	cmd->flag = cpu_to_le32(flag);
3482 
3483 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_PVB_CMDID,
3484 				  NO_SYNC_WMIFLAG);
3485 
3486 	return 0;
3487 }
3488 
3489 int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 if_idx,
3490 				       u8 rx_meta_ver,
3491 				       bool rx_dot11_hdr, bool defrag_on_host)
3492 {
3493 	struct sk_buff *skb;
3494 	struct wmi_rx_frame_format_cmd *cmd;
3495 	int ret;
3496 
3497 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3498 	if (!skb)
3499 		return -ENOMEM;
3500 
3501 	cmd = (struct wmi_rx_frame_format_cmd *) skb->data;
3502 	cmd->dot11_hdr = rx_dot11_hdr ? 1 : 0;
3503 	cmd->defrag_on_host = defrag_on_host ? 1 : 0;
3504 	cmd->meta_ver = rx_meta_ver;
3505 
3506 	/* Delete the local aggr state, on host */
3507 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RX_FRAME_FORMAT_CMDID,
3508 				  NO_SYNC_WMIFLAG);
3509 
3510 	return ret;
3511 }
3512 
3513 int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type,
3514 			     const u8 *ie, u8 ie_len)
3515 {
3516 	struct sk_buff *skb;
3517 	struct wmi_set_appie_cmd *p;
3518 
3519 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3520 	if (!skb)
3521 		return -ENOMEM;
3522 
3523 	ath6kl_dbg(ATH6KL_DBG_WMI,
3524 		   "set_appie_cmd: mgmt_frm_type=%u ie_len=%u\n",
3525 		   mgmt_frm_type, ie_len);
3526 	p = (struct wmi_set_appie_cmd *) skb->data;
3527 	p->mgmt_frm_type = mgmt_frm_type;
3528 	p->ie_len = ie_len;
3529 
3530 	if (ie != NULL && ie_len > 0)
3531 		memcpy(p->ie_info, ie, ie_len);
3532 
3533 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_APPIE_CMDID,
3534 				   NO_SYNC_WMIFLAG);
3535 }
3536 
3537 int ath6kl_wmi_set_ie_cmd(struct wmi *wmi, u8 if_idx, u8 ie_id, u8 ie_field,
3538 			  const u8 *ie_info, u8 ie_len)
3539 {
3540 	struct sk_buff *skb;
3541 	struct wmi_set_ie_cmd *p;
3542 
3543 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3544 	if (!skb)
3545 		return -ENOMEM;
3546 
3547 	ath6kl_dbg(ATH6KL_DBG_WMI, "set_ie_cmd: ie_id=%u ie_ie_field=%u ie_len=%u\n",
3548 		   ie_id, ie_field, ie_len);
3549 	p = (struct wmi_set_ie_cmd *) skb->data;
3550 	p->ie_id = ie_id;
3551 	p->ie_field = ie_field;
3552 	p->ie_len = ie_len;
3553 	if (ie_info && ie_len > 0)
3554 		memcpy(p->ie_info, ie_info, ie_len);
3555 
3556 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IE_CMDID,
3557 				   NO_SYNC_WMIFLAG);
3558 }
3559 
3560 int ath6kl_wmi_disable_11b_rates_cmd(struct wmi *wmi, bool disable)
3561 {
3562 	struct sk_buff *skb;
3563 	struct wmi_disable_11b_rates_cmd *cmd;
3564 
3565 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3566 	if (!skb)
3567 		return -ENOMEM;
3568 
3569 	ath6kl_dbg(ATH6KL_DBG_WMI, "disable_11b_rates_cmd: disable=%u\n",
3570 		   disable);
3571 	cmd = (struct wmi_disable_11b_rates_cmd *) skb->data;
3572 	cmd->disable = disable ? 1 : 0;
3573 
3574 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_DISABLE_11B_RATES_CMDID,
3575 				   NO_SYNC_WMIFLAG);
3576 }
3577 
3578 int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx, u32 freq, u32 dur)
3579 {
3580 	struct sk_buff *skb;
3581 	struct wmi_remain_on_chnl_cmd *p;
3582 
3583 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3584 	if (!skb)
3585 		return -ENOMEM;
3586 
3587 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl_cmd: freq=%u dur=%u\n",
3588 		   freq, dur);
3589 	p = (struct wmi_remain_on_chnl_cmd *) skb->data;
3590 	p->freq = cpu_to_le32(freq);
3591 	p->duration = cpu_to_le32(dur);
3592 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_REMAIN_ON_CHNL_CMDID,
3593 				   NO_SYNC_WMIFLAG);
3594 }
3595 
3596 /* ath6kl_wmi_send_action_cmd is to be deprecated. Use
3597  * ath6kl_wmi_send_mgmt_cmd instead. The new function supports P2P
3598  * mgmt operations using station interface.
3599  */
3600 static int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3601 				      u32 freq, u32 wait, const u8 *data,
3602 				      u16 data_len)
3603 {
3604 	struct sk_buff *skb;
3605 	struct wmi_send_action_cmd *p;
3606 	u8 *buf;
3607 
3608 	if (wait)
3609 		return -EINVAL; /* Offload for wait not supported */
3610 
3611 	buf = kmalloc(data_len, GFP_KERNEL);
3612 	if (!buf)
3613 		return -ENOMEM;
3614 
3615 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3616 	if (!skb) {
3617 		kfree(buf);
3618 		return -ENOMEM;
3619 	}
3620 
3621 	kfree(wmi->last_mgmt_tx_frame);
3622 	memcpy(buf, data, data_len);
3623 	wmi->last_mgmt_tx_frame = buf;
3624 	wmi->last_mgmt_tx_frame_len = data_len;
3625 
3626 	ath6kl_dbg(ATH6KL_DBG_WMI,
3627 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3628 		   id, freq, wait, data_len);
3629 	p = (struct wmi_send_action_cmd *) skb->data;
3630 	p->id = cpu_to_le32(id);
3631 	p->freq = cpu_to_le32(freq);
3632 	p->wait = cpu_to_le32(wait);
3633 	p->len = cpu_to_le16(data_len);
3634 	memcpy(p->data, data, data_len);
3635 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_ACTION_CMDID,
3636 				   NO_SYNC_WMIFLAG);
3637 }
3638 
3639 static int __ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3640 				      u32 freq, u32 wait, const u8 *data,
3641 				      u16 data_len, u32 no_cck)
3642 {
3643 	struct sk_buff *skb;
3644 	struct wmi_send_mgmt_cmd *p;
3645 	u8 *buf;
3646 
3647 	if (wait)
3648 		return -EINVAL; /* Offload for wait not supported */
3649 
3650 	buf = kmalloc(data_len, GFP_KERNEL);
3651 	if (!buf)
3652 		return -ENOMEM;
3653 
3654 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3655 	if (!skb) {
3656 		kfree(buf);
3657 		return -ENOMEM;
3658 	}
3659 
3660 	kfree(wmi->last_mgmt_tx_frame);
3661 	memcpy(buf, data, data_len);
3662 	wmi->last_mgmt_tx_frame = buf;
3663 	wmi->last_mgmt_tx_frame_len = data_len;
3664 
3665 	ath6kl_dbg(ATH6KL_DBG_WMI,
3666 		   "send_action_cmd: id=%u freq=%u wait=%u len=%u\n",
3667 		   id, freq, wait, data_len);
3668 	p = (struct wmi_send_mgmt_cmd *) skb->data;
3669 	p->id = cpu_to_le32(id);
3670 	p->freq = cpu_to_le32(freq);
3671 	p->wait = cpu_to_le32(wait);
3672 	p->no_cck = cpu_to_le32(no_cck);
3673 	p->len = cpu_to_le16(data_len);
3674 	memcpy(p->data, data, data_len);
3675 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_MGMT_CMDID,
3676 				   NO_SYNC_WMIFLAG);
3677 }
3678 
3679 int ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id, u32 freq,
3680 				u32 wait, const u8 *data, u16 data_len,
3681 				u32 no_cck)
3682 {
3683 	int status;
3684 	struct ath6kl *ar = wmi->parent_dev;
3685 
3686 	if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
3687 		     ar->fw_capabilities)) {
3688 		/*
3689 		 * If capable of doing P2P mgmt operations using
3690 		 * station interface, send additional information like
3691 		 * supported rates to advertise and xmit rates for
3692 		 * probe requests
3693 		 */
3694 		status = __ath6kl_wmi_send_mgmt_cmd(ar->wmi, if_idx, id, freq,
3695 						    wait, data, data_len,
3696 						    no_cck);
3697 	} else {
3698 		status = ath6kl_wmi_send_action_cmd(ar->wmi, if_idx, id, freq,
3699 						    wait, data, data_len);
3700 	}
3701 
3702 	return status;
3703 }
3704 
3705 int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u8 if_idx, u32 freq,
3706 				       const u8 *dst, const u8 *data,
3707 				       u16 data_len)
3708 {
3709 	struct sk_buff *skb;
3710 	struct wmi_p2p_probe_response_cmd *p;
3711 	size_t cmd_len = sizeof(*p) + data_len;
3712 
3713 	if (data_len == 0)
3714 		cmd_len++; /* work around target minimum length requirement */
3715 
3716 	skb = ath6kl_wmi_get_new_buf(cmd_len);
3717 	if (!skb)
3718 		return -ENOMEM;
3719 
3720 	ath6kl_dbg(ATH6KL_DBG_WMI,
3721 		   "send_probe_response_cmd: freq=%u dst=%pM len=%u\n",
3722 		   freq, dst, data_len);
3723 	p = (struct wmi_p2p_probe_response_cmd *) skb->data;
3724 	p->freq = cpu_to_le32(freq);
3725 	memcpy(p->destination_addr, dst, ETH_ALEN);
3726 	p->len = cpu_to_le16(data_len);
3727 	memcpy(p->data, data, data_len);
3728 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3729 				   WMI_SEND_PROBE_RESPONSE_CMDID,
3730 				   NO_SYNC_WMIFLAG);
3731 }
3732 
3733 int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, u8 if_idx, bool enable)
3734 {
3735 	struct sk_buff *skb;
3736 	struct wmi_probe_req_report_cmd *p;
3737 
3738 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3739 	if (!skb)
3740 		return -ENOMEM;
3741 
3742 	ath6kl_dbg(ATH6KL_DBG_WMI, "probe_report_req_cmd: enable=%u\n",
3743 		   enable);
3744 	p = (struct wmi_probe_req_report_cmd *) skb->data;
3745 	p->enable = enable ? 1 : 0;
3746 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_PROBE_REQ_REPORT_CMDID,
3747 				   NO_SYNC_WMIFLAG);
3748 }
3749 
3750 int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u8 if_idx, u32 info_req_flags)
3751 {
3752 	struct sk_buff *skb;
3753 	struct wmi_get_p2p_info *p;
3754 
3755 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3756 	if (!skb)
3757 		return -ENOMEM;
3758 
3759 	ath6kl_dbg(ATH6KL_DBG_WMI, "info_req_cmd: flags=%x\n",
3760 		   info_req_flags);
3761 	p = (struct wmi_get_p2p_info *) skb->data;
3762 	p->info_req_flags = cpu_to_le32(info_req_flags);
3763 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_GET_P2P_INFO_CMDID,
3764 				   NO_SYNC_WMIFLAG);
3765 }
3766 
3767 int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx)
3768 {
3769 	ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl_cmd\n");
3770 	return ath6kl_wmi_simple_cmd(wmi, if_idx,
3771 				     WMI_CANCEL_REMAIN_ON_CHNL_CMDID);
3772 }
3773 
3774 int ath6kl_wmi_set_inact_period(struct wmi *wmi, u8 if_idx, int inact_timeout)
3775 {
3776 	struct sk_buff *skb;
3777 	struct wmi_set_inact_period_cmd *cmd;
3778 
3779 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3780 	if (!skb)
3781 		return -ENOMEM;
3782 
3783 	cmd = (struct wmi_set_inact_period_cmd *) skb->data;
3784 	cmd->inact_period = cpu_to_le32(inact_timeout);
3785 	cmd->num_null_func = 0;
3786 
3787 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_CONN_INACT_CMDID,
3788 				   NO_SYNC_WMIFLAG);
3789 }
3790 
3791 static void ath6kl_wmi_hb_challenge_resp_event(struct wmi *wmi, u8 *datap,
3792 					       int len)
3793 {
3794 	struct wmix_hb_challenge_resp_cmd *cmd;
3795 
3796 	if (len < sizeof(struct wmix_hb_challenge_resp_cmd))
3797 		return;
3798 
3799 	cmd = (struct wmix_hb_challenge_resp_cmd *) datap;
3800 	ath6kl_recovery_hb_event(wmi->parent_dev,
3801 				 le32_to_cpu(cmd->cookie));
3802 }
3803 
3804 static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb)
3805 {
3806 	struct wmix_cmd_hdr *cmd;
3807 	u32 len;
3808 	u16 id;
3809 	u8 *datap;
3810 	int ret = 0;
3811 
3812 	if (skb->len < sizeof(struct wmix_cmd_hdr)) {
3813 		ath6kl_err("bad packet 1\n");
3814 		return -EINVAL;
3815 	}
3816 
3817 	cmd = (struct wmix_cmd_hdr *) skb->data;
3818 	id = le32_to_cpu(cmd->cmd_id);
3819 
3820 	skb_pull(skb, sizeof(struct wmix_cmd_hdr));
3821 
3822 	datap = skb->data;
3823 	len = skb->len;
3824 
3825 	switch (id) {
3826 	case WMIX_HB_CHALLENGE_RESP_EVENTID:
3827 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event hb challenge resp\n");
3828 		ath6kl_wmi_hb_challenge_resp_event(wmi, datap, len);
3829 		break;
3830 	case WMIX_DBGLOG_EVENTID:
3831 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event dbglog len %d\n", len);
3832 		ath6kl_debug_fwlog_event(wmi->parent_dev, datap, len);
3833 		break;
3834 	default:
3835 		ath6kl_warn("unknown cmd id 0x%x\n", id);
3836 		ret = -EINVAL;
3837 		break;
3838 	}
3839 
3840 	return ret;
3841 }
3842 
3843 static int ath6kl_wmi_roam_tbl_event_rx(struct wmi *wmi, u8 *datap, int len)
3844 {
3845 	return ath6kl_debug_roam_tbl_event(wmi->parent_dev, datap, len);
3846 }
3847 
3848 /* Process interface specific wmi events, caller would free the datap */
3849 static int ath6kl_wmi_proc_events_vif(struct wmi *wmi, u16 if_idx, u16 cmd_id,
3850 					u8 *datap, u32 len)
3851 {
3852 	struct ath6kl_vif *vif;
3853 
3854 	vif = ath6kl_get_vif_by_index(wmi->parent_dev, if_idx);
3855 	if (!vif) {
3856 		ath6kl_dbg(ATH6KL_DBG_WMI,
3857 			   "Wmi event for unavailable vif, vif_index:%d\n",
3858 			    if_idx);
3859 		return -EINVAL;
3860 	}
3861 
3862 	switch (cmd_id) {
3863 	case WMI_CONNECT_EVENTID:
3864 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CONNECT_EVENTID\n");
3865 		return ath6kl_wmi_connect_event_rx(wmi, datap, len, vif);
3866 	case WMI_DISCONNECT_EVENTID:
3867 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DISCONNECT_EVENTID\n");
3868 		return ath6kl_wmi_disconnect_event_rx(wmi, datap, len, vif);
3869 	case WMI_TKIP_MICERR_EVENTID:
3870 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TKIP_MICERR_EVENTID\n");
3871 		return ath6kl_wmi_tkip_micerr_event_rx(wmi, datap, len, vif);
3872 	case WMI_BSSINFO_EVENTID:
3873 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_BSSINFO_EVENTID\n");
3874 		return ath6kl_wmi_bssinfo_event_rx(wmi, datap, len, vif);
3875 	case WMI_NEIGHBOR_REPORT_EVENTID:
3876 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_NEIGHBOR_REPORT_EVENTID\n");
3877 		return ath6kl_wmi_neighbor_report_event_rx(wmi, datap, len,
3878 							   vif);
3879 	case WMI_SCAN_COMPLETE_EVENTID:
3880 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SCAN_COMPLETE_EVENTID\n");
3881 		return ath6kl_wmi_scan_complete_rx(wmi, datap, len, vif);
3882 	case WMI_REPORT_STATISTICS_EVENTID:
3883 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_STATISTICS_EVENTID\n");
3884 		return ath6kl_wmi_stats_event_rx(wmi, datap, len, vif);
3885 	case WMI_CAC_EVENTID:
3886 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CAC_EVENTID\n");
3887 		return ath6kl_wmi_cac_event_rx(wmi, datap, len, vif);
3888 	case WMI_PSPOLL_EVENTID:
3889 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSPOLL_EVENTID\n");
3890 		return ath6kl_wmi_pspoll_event_rx(wmi, datap, len, vif);
3891 	case WMI_DTIMEXPIRY_EVENTID:
3892 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DTIMEXPIRY_EVENTID\n");
3893 		return ath6kl_wmi_dtimexpiry_event_rx(wmi, datap, len, vif);
3894 	case WMI_ADDBA_REQ_EVENTID:
3895 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_REQ_EVENTID\n");
3896 		return ath6kl_wmi_addba_req_event_rx(wmi, datap, len, vif);
3897 	case WMI_DELBA_REQ_EVENTID:
3898 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DELBA_REQ_EVENTID\n");
3899 		return ath6kl_wmi_delba_req_event_rx(wmi, datap, len, vif);
3900 	case WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID:
3901 		ath6kl_dbg(ATH6KL_DBG_WMI,
3902 			   "WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID");
3903 		return ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(wmi, vif);
3904 	case WMI_REMAIN_ON_CHNL_EVENTID:
3905 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REMAIN_ON_CHNL_EVENTID\n");
3906 		return ath6kl_wmi_remain_on_chnl_event_rx(wmi, datap, len, vif);
3907 	case WMI_CANCEL_REMAIN_ON_CHNL_EVENTID:
3908 		ath6kl_dbg(ATH6KL_DBG_WMI,
3909 			   "WMI_CANCEL_REMAIN_ON_CHNL_EVENTID\n");
3910 		return ath6kl_wmi_cancel_remain_on_chnl_event_rx(wmi, datap,
3911 								 len, vif);
3912 	case WMI_TX_STATUS_EVENTID:
3913 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_STATUS_EVENTID\n");
3914 		return ath6kl_wmi_tx_status_event_rx(wmi, datap, len, vif);
3915 	case WMI_RX_PROBE_REQ_EVENTID:
3916 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_PROBE_REQ_EVENTID\n");
3917 		return ath6kl_wmi_rx_probe_req_event_rx(wmi, datap, len, vif);
3918 	case WMI_RX_ACTION_EVENTID:
3919 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_ACTION_EVENTID\n");
3920 		return ath6kl_wmi_rx_action_event_rx(wmi, datap, len, vif);
3921 	case WMI_TXE_NOTIFY_EVENTID:
3922 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TXE_NOTIFY_EVENTID\n");
3923 		return ath6kl_wmi_txe_notify_event_rx(wmi, datap, len, vif);
3924 	default:
3925 		ath6kl_dbg(ATH6KL_DBG_WMI, "unknown cmd id 0x%x\n", cmd_id);
3926 		return -EINVAL;
3927 	}
3928 
3929 	return 0;
3930 }
3931 
3932 static int ath6kl_wmi_proc_events(struct wmi *wmi, struct sk_buff *skb)
3933 {
3934 	struct wmi_cmd_hdr *cmd;
3935 	int ret = 0;
3936 	u32 len;
3937 	u16 id;
3938 	u8 if_idx;
3939 	u8 *datap;
3940 
3941 	cmd = (struct wmi_cmd_hdr *) skb->data;
3942 	id = le16_to_cpu(cmd->cmd_id);
3943 	if_idx = le16_to_cpu(cmd->info1) & WMI_CMD_HDR_IF_ID_MASK;
3944 
3945 	skb_pull(skb, sizeof(struct wmi_cmd_hdr));
3946 	datap = skb->data;
3947 	len = skb->len;
3948 
3949 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi rx id %d len %d\n", id, len);
3950 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi rx ",
3951 			datap, len);
3952 
3953 	switch (id) {
3954 	case WMI_GET_BITRATE_CMDID:
3955 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_BITRATE_CMDID\n");
3956 		ret = ath6kl_wmi_bitrate_reply_rx(wmi, datap, len);
3957 		break;
3958 	case WMI_GET_CHANNEL_LIST_CMDID:
3959 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_CHANNEL_LIST_CMDID\n");
3960 		ret = ath6kl_wmi_ch_list_reply_rx(wmi, datap, len);
3961 		break;
3962 	case WMI_GET_TX_PWR_CMDID:
3963 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_TX_PWR_CMDID\n");
3964 		ret = ath6kl_wmi_tx_pwr_reply_rx(wmi, datap, len);
3965 		break;
3966 	case WMI_READY_EVENTID:
3967 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_READY_EVENTID\n");
3968 		ret = ath6kl_wmi_ready_event_rx(wmi, datap, len);
3969 		break;
3970 	case WMI_PEER_NODE_EVENTID:
3971 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PEER_NODE_EVENTID\n");
3972 		ret = ath6kl_wmi_peer_node_event_rx(wmi, datap, len);
3973 		break;
3974 	case WMI_REGDOMAIN_EVENTID:
3975 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REGDOMAIN_EVENTID\n");
3976 		ath6kl_wmi_regdomain_event(wmi, datap, len);
3977 		break;
3978 	case WMI_PSTREAM_TIMEOUT_EVENTID:
3979 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSTREAM_TIMEOUT_EVENTID\n");
3980 		ret = ath6kl_wmi_pstream_timeout_event_rx(wmi, datap, len);
3981 		break;
3982 	case WMI_CMDERROR_EVENTID:
3983 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CMDERROR_EVENTID\n");
3984 		ret = ath6kl_wmi_error_event_rx(wmi, datap, len);
3985 		break;
3986 	case WMI_RSSI_THRESHOLD_EVENTID:
3987 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RSSI_THRESHOLD_EVENTID\n");
3988 		ret = ath6kl_wmi_rssi_threshold_event_rx(wmi, datap, len);
3989 		break;
3990 	case WMI_ERROR_REPORT_EVENTID:
3991 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ERROR_REPORT_EVENTID\n");
3992 		break;
3993 	case WMI_OPT_RX_FRAME_EVENTID:
3994 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_OPT_RX_FRAME_EVENTID\n");
3995 		/* this event has been deprecated */
3996 		break;
3997 	case WMI_REPORT_ROAM_TBL_EVENTID:
3998 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_TBL_EVENTID\n");
3999 		ret = ath6kl_wmi_roam_tbl_event_rx(wmi, datap, len);
4000 		break;
4001 	case WMI_EXTENSION_EVENTID:
4002 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_EXTENSION_EVENTID\n");
4003 		ret = ath6kl_wmi_control_rx_xtnd(wmi, skb);
4004 		break;
4005 	case WMI_CHANNEL_CHANGE_EVENTID:
4006 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CHANNEL_CHANGE_EVENTID\n");
4007 		break;
4008 	case WMI_REPORT_ROAM_DATA_EVENTID:
4009 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_DATA_EVENTID\n");
4010 		break;
4011 	case WMI_TEST_EVENTID:
4012 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TEST_EVENTID\n");
4013 		ret = ath6kl_wmi_test_rx(wmi, datap, len);
4014 		break;
4015 	case WMI_GET_FIXRATES_CMDID:
4016 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_FIXRATES_CMDID\n");
4017 		ret = ath6kl_wmi_ratemask_reply_rx(wmi, datap, len);
4018 		break;
4019 	case WMI_TX_RETRY_ERR_EVENTID:
4020 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_RETRY_ERR_EVENTID\n");
4021 		break;
4022 	case WMI_SNR_THRESHOLD_EVENTID:
4023 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SNR_THRESHOLD_EVENTID\n");
4024 		ret = ath6kl_wmi_snr_threshold_event_rx(wmi, datap, len);
4025 		break;
4026 	case WMI_LQ_THRESHOLD_EVENTID:
4027 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_LQ_THRESHOLD_EVENTID\n");
4028 		break;
4029 	case WMI_APLIST_EVENTID:
4030 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_APLIST_EVENTID\n");
4031 		ret = ath6kl_wmi_aplist_event_rx(wmi, datap, len);
4032 		break;
4033 	case WMI_GET_KEEPALIVE_CMDID:
4034 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_KEEPALIVE_CMDID\n");
4035 		ret = ath6kl_wmi_keepalive_reply_rx(wmi, datap, len);
4036 		break;
4037 	case WMI_GET_WOW_LIST_EVENTID:
4038 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_WOW_LIST_EVENTID\n");
4039 		break;
4040 	case WMI_GET_PMKID_LIST_EVENTID:
4041 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_PMKID_LIST_EVENTID\n");
4042 		ret = ath6kl_wmi_get_pmkid_list_event_rx(wmi, datap, len);
4043 		break;
4044 	case WMI_SET_PARAMS_REPLY_EVENTID:
4045 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SET_PARAMS_REPLY_EVENTID\n");
4046 		break;
4047 	case WMI_ADDBA_RESP_EVENTID:
4048 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_RESP_EVENTID\n");
4049 		break;
4050 	case WMI_REPORT_BTCOEX_CONFIG_EVENTID:
4051 		ath6kl_dbg(ATH6KL_DBG_WMI,
4052 			   "WMI_REPORT_BTCOEX_CONFIG_EVENTID\n");
4053 		break;
4054 	case WMI_REPORT_BTCOEX_STATS_EVENTID:
4055 		ath6kl_dbg(ATH6KL_DBG_WMI,
4056 			   "WMI_REPORT_BTCOEX_STATS_EVENTID\n");
4057 		break;
4058 	case WMI_TX_COMPLETE_EVENTID:
4059 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_COMPLETE_EVENTID\n");
4060 		ret = ath6kl_wmi_tx_complete_event_rx(datap, len);
4061 		break;
4062 	case WMI_P2P_CAPABILITIES_EVENTID:
4063 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_CAPABILITIES_EVENTID\n");
4064 		ret = ath6kl_wmi_p2p_capabilities_event_rx(datap, len);
4065 		break;
4066 	case WMI_P2P_INFO_EVENTID:
4067 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_INFO_EVENTID\n");
4068 		ret = ath6kl_wmi_p2p_info_event_rx(datap, len);
4069 		break;
4070 	default:
4071 		/* may be the event is interface specific */
4072 		ret = ath6kl_wmi_proc_events_vif(wmi, if_idx, id, datap, len);
4073 		break;
4074 	}
4075 
4076 	dev_kfree_skb(skb);
4077 	return ret;
4078 }
4079 
4080 /* Control Path */
4081 int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb)
4082 {
4083 	if (WARN_ON(skb == NULL))
4084 		return -EINVAL;
4085 
4086 	if (skb->len < sizeof(struct wmi_cmd_hdr)) {
4087 		ath6kl_err("bad packet 1\n");
4088 		dev_kfree_skb(skb);
4089 		return -EINVAL;
4090 	}
4091 
4092 	trace_ath6kl_wmi_event(skb->data, skb->len);
4093 
4094 	return ath6kl_wmi_proc_events(wmi, skb);
4095 }
4096 
4097 void ath6kl_wmi_reset(struct wmi *wmi)
4098 {
4099 	spin_lock_bh(&wmi->lock);
4100 
4101 	wmi->fat_pipe_exist = 0;
4102 	memset(wmi->stream_exist_for_ac, 0, sizeof(wmi->stream_exist_for_ac));
4103 
4104 	spin_unlock_bh(&wmi->lock);
4105 }
4106 
4107 void *ath6kl_wmi_init(struct ath6kl *dev)
4108 {
4109 	struct wmi *wmi;
4110 
4111 	wmi = kzalloc(sizeof(struct wmi), GFP_KERNEL);
4112 	if (!wmi)
4113 		return NULL;
4114 
4115 	spin_lock_init(&wmi->lock);
4116 
4117 	wmi->parent_dev = dev;
4118 
4119 	wmi->pwr_mode = REC_POWER;
4120 
4121 	ath6kl_wmi_reset(wmi);
4122 
4123 	return wmi;
4124 }
4125 
4126 void ath6kl_wmi_shutdown(struct wmi *wmi)
4127 {
4128 	if (!wmi)
4129 		return;
4130 
4131 	kfree(wmi->last_mgmt_tx_frame);
4132 	kfree(wmi);
4133 }
4134