xref: /openbmc/linux/drivers/net/wireless/ath/ath6kl/wmi.c (revision ce0dc0cfeac9fde9964fa4b07aecd7cc604060e0)
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 "core.h"
20 #include "debug.h"
21 #include "testmode.h"
22 #include "../regd.h"
23 #include "../regd_common.h"
24 
25 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx);
26 
27 static const s32 wmi_rate_tbl[][2] = {
28 	/* {W/O SGI, with SGI} */
29 	{1000, 1000},
30 	{2000, 2000},
31 	{5500, 5500},
32 	{11000, 11000},
33 	{6000, 6000},
34 	{9000, 9000},
35 	{12000, 12000},
36 	{18000, 18000},
37 	{24000, 24000},
38 	{36000, 36000},
39 	{48000, 48000},
40 	{54000, 54000},
41 	{6500, 7200},
42 	{13000, 14400},
43 	{19500, 21700},
44 	{26000, 28900},
45 	{39000, 43300},
46 	{52000, 57800},
47 	{58500, 65000},
48 	{65000, 72200},
49 	{13500, 15000},
50 	{27000, 30000},
51 	{40500, 45000},
52 	{54000, 60000},
53 	{81000, 90000},
54 	{108000, 120000},
55 	{121500, 135000},
56 	{135000, 150000},
57 	{0, 0}
58 };
59 
60 /* 802.1d to AC mapping. Refer pg 57 of WMM-test-plan-v1.2 */
61 static const u8 up_to_ac[] = {
62 	WMM_AC_BE,
63 	WMM_AC_BK,
64 	WMM_AC_BK,
65 	WMM_AC_BE,
66 	WMM_AC_VI,
67 	WMM_AC_VI,
68 	WMM_AC_VO,
69 	WMM_AC_VO,
70 };
71 
72 void ath6kl_wmi_set_control_ep(struct wmi *wmi, enum htc_endpoint_id ep_id)
73 {
74 	if (WARN_ON(ep_id == ENDPOINT_UNUSED || ep_id >= ENDPOINT_MAX))
75 		return;
76 
77 	wmi->ep_id = ep_id;
78 }
79 
80 enum htc_endpoint_id ath6kl_wmi_get_control_ep(struct wmi *wmi)
81 {
82 	return wmi->ep_id;
83 }
84 
85 struct ath6kl_vif *ath6kl_get_vif_by_index(struct ath6kl *ar, u8 if_idx)
86 {
87 	struct ath6kl_vif *vif, *found = NULL;
88 
89 	if (WARN_ON(if_idx > (ar->vif_max - 1)))
90 		return NULL;
91 
92 	/* FIXME: Locking */
93 	spin_lock_bh(&ar->list_lock);
94 	list_for_each_entry(vif, &ar->vif_list, list) {
95 		if (vif->fw_vif_idx == if_idx) {
96 			found = vif;
97 			break;
98 		}
99 	}
100 	spin_unlock_bh(&ar->list_lock);
101 
102 	return found;
103 }
104 
105 /*  Performs DIX to 802.3 encapsulation for transmit packets.
106  *  Assumes the entire DIX header is contigous and that there is
107  *  enough room in the buffer for a 802.3 mac header and LLC+SNAP headers.
108  */
109 int ath6kl_wmi_dix_2_dot3(struct wmi *wmi, struct sk_buff *skb)
110 {
111 	struct ath6kl_llc_snap_hdr *llc_hdr;
112 	struct ethhdr *eth_hdr;
113 	size_t new_len;
114 	__be16 type;
115 	u8 *datap;
116 	u16 size;
117 
118 	if (WARN_ON(skb == NULL))
119 		return -EINVAL;
120 
121 	size = sizeof(struct ath6kl_llc_snap_hdr) + sizeof(struct wmi_data_hdr);
122 	if (skb_headroom(skb) < size)
123 		return -ENOMEM;
124 
125 	eth_hdr = (struct ethhdr *) skb->data;
126 	type = eth_hdr->h_proto;
127 
128 	if (!is_ethertype(be16_to_cpu(type))) {
129 		ath6kl_dbg(ATH6KL_DBG_WMI,
130 			"%s: pkt is already in 802.3 format\n", __func__);
131 		return 0;
132 	}
133 
134 	new_len = skb->len - sizeof(*eth_hdr) + sizeof(*llc_hdr);
135 
136 	skb_push(skb, sizeof(struct ath6kl_llc_snap_hdr));
137 	datap = skb->data;
138 
139 	eth_hdr->h_proto = cpu_to_be16(new_len);
140 
141 	memcpy(datap, eth_hdr, sizeof(*eth_hdr));
142 
143 	llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap + sizeof(*eth_hdr));
144 	llc_hdr->dsap = 0xAA;
145 	llc_hdr->ssap = 0xAA;
146 	llc_hdr->cntl = 0x03;
147 	llc_hdr->org_code[0] = 0x0;
148 	llc_hdr->org_code[1] = 0x0;
149 	llc_hdr->org_code[2] = 0x0;
150 	llc_hdr->eth_type = type;
151 
152 	return 0;
153 }
154 
155 static int ath6kl_wmi_meta_add(struct wmi *wmi, struct sk_buff *skb,
156 			       u8 *version, void *tx_meta_info)
157 {
158 	struct wmi_tx_meta_v1 *v1;
159 	struct wmi_tx_meta_v2 *v2;
160 
161 	if (WARN_ON(skb == NULL || version == NULL))
162 		return -EINVAL;
163 
164 	switch (*version) {
165 	case WMI_META_VERSION_1:
166 		skb_push(skb, WMI_MAX_TX_META_SZ);
167 		v1 = (struct wmi_tx_meta_v1 *) skb->data;
168 		v1->pkt_id = 0;
169 		v1->rate_plcy_id = 0;
170 		*version = WMI_META_VERSION_1;
171 		break;
172 	case WMI_META_VERSION_2:
173 		skb_push(skb, WMI_MAX_TX_META_SZ);
174 		v2 = (struct wmi_tx_meta_v2 *) skb->data;
175 		memcpy(v2, (struct wmi_tx_meta_v2 *) tx_meta_info,
176 		       sizeof(struct wmi_tx_meta_v2));
177 		break;
178 	}
179 
180 	return 0;
181 }
182 
183 int ath6kl_wmi_data_hdr_add(struct wmi *wmi, struct sk_buff *skb,
184 			    u8 msg_type, u32 flags,
185 			    enum wmi_data_hdr_data_type data_type,
186 			    u8 meta_ver, void *tx_meta_info, u8 if_idx)
187 {
188 	struct wmi_data_hdr *data_hdr;
189 	int ret;
190 
191 	if (WARN_ON(skb == NULL || (if_idx > wmi->parent_dev->vif_max - 1)))
192 		return -EINVAL;
193 
194 	if (tx_meta_info) {
195 		ret = ath6kl_wmi_meta_add(wmi, skb, &meta_ver, tx_meta_info);
196 		if (ret)
197 			return ret;
198 	}
199 
200 	skb_push(skb, sizeof(struct wmi_data_hdr));
201 
202 	data_hdr = (struct wmi_data_hdr *)skb->data;
203 	memset(data_hdr, 0, sizeof(struct wmi_data_hdr));
204 
205 	data_hdr->info = msg_type << WMI_DATA_HDR_MSG_TYPE_SHIFT;
206 	data_hdr->info |= data_type << WMI_DATA_HDR_DATA_TYPE_SHIFT;
207 
208 	if (flags & WMI_DATA_HDR_FLAGS_MORE)
209 		data_hdr->info |= WMI_DATA_HDR_MORE;
210 
211 	if (flags & WMI_DATA_HDR_FLAGS_EOSP)
212 		data_hdr->info3 |= cpu_to_le16(WMI_DATA_HDR_EOSP);
213 
214 	data_hdr->info2 |= cpu_to_le16(meta_ver << WMI_DATA_HDR_META_SHIFT);
215 	data_hdr->info3 |= cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
216 
217 	return 0;
218 }
219 
220 u8 ath6kl_wmi_determine_user_priority(u8 *pkt, u32 layer2_pri)
221 {
222 	struct iphdr *ip_hdr = (struct iphdr *) pkt;
223 	u8 ip_pri;
224 
225 	/*
226 	 * Determine IPTOS priority
227 	 *
228 	 * IP-TOS - 8bits
229 	 *          : DSCP(6-bits) ECN(2-bits)
230 	 *          : DSCP - P2 P1 P0 X X X
231 	 * where (P2 P1 P0) form 802.1D
232 	 */
233 	ip_pri = ip_hdr->tos >> 5;
234 	ip_pri &= 0x7;
235 
236 	if ((layer2_pri & 0x7) > ip_pri)
237 		return (u8) layer2_pri & 0x7;
238 	else
239 		return ip_pri;
240 }
241 
242 u8 ath6kl_wmi_get_traffic_class(u8 user_priority)
243 {
244 	return  up_to_ac[user_priority & 0x7];
245 }
246 
247 int ath6kl_wmi_implicit_create_pstream(struct wmi *wmi, u8 if_idx,
248 				       struct sk_buff *skb,
249 				       u32 layer2_priority, bool wmm_enabled,
250 				       u8 *ac)
251 {
252 	struct wmi_data_hdr *data_hdr;
253 	struct ath6kl_llc_snap_hdr *llc_hdr;
254 	struct wmi_create_pstream_cmd cmd;
255 	u32 meta_size, hdr_size;
256 	u16 ip_type = IP_ETHERTYPE;
257 	u8 stream_exist, usr_pri;
258 	u8 traffic_class = WMM_AC_BE;
259 	u8 *datap;
260 
261 	if (WARN_ON(skb == NULL))
262 		return -EINVAL;
263 
264 	datap = skb->data;
265 	data_hdr = (struct wmi_data_hdr *) datap;
266 
267 	meta_size = ((le16_to_cpu(data_hdr->info2) >> WMI_DATA_HDR_META_SHIFT) &
268 		     WMI_DATA_HDR_META_MASK) ? WMI_MAX_TX_META_SZ : 0;
269 
270 	if (!wmm_enabled) {
271 		/* If WMM is disabled all traffic goes as BE traffic */
272 		usr_pri = 0;
273 	} else {
274 		hdr_size = sizeof(struct ethhdr);
275 
276 		llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap +
277 							 sizeof(struct
278 								wmi_data_hdr) +
279 							 meta_size + hdr_size);
280 
281 		if (llc_hdr->eth_type == htons(ip_type)) {
282 			/*
283 			 * Extract the endpoint info from the TOS field
284 			 * in the IP header.
285 			 */
286 			usr_pri =
287 			   ath6kl_wmi_determine_user_priority(((u8 *) llc_hdr) +
288 					sizeof(struct ath6kl_llc_snap_hdr),
289 					layer2_priority);
290 		} else
291 			usr_pri = layer2_priority & 0x7;
292 	}
293 
294 	/*
295 	 * workaround for WMM S5
296 	 *
297 	 * FIXME: wmi->traffic_class is always 100 so this test doesn't
298 	 * make sense
299 	 */
300 	if ((wmi->traffic_class == WMM_AC_VI) &&
301 	    ((usr_pri == 5) || (usr_pri == 4)))
302 		usr_pri = 1;
303 
304 	/* Convert user priority to traffic class */
305 	traffic_class = up_to_ac[usr_pri & 0x7];
306 
307 	wmi_data_hdr_set_up(data_hdr, usr_pri);
308 
309 	spin_lock_bh(&wmi->lock);
310 	stream_exist = wmi->fat_pipe_exist;
311 	spin_unlock_bh(&wmi->lock);
312 
313 	if (!(stream_exist & (1 << traffic_class))) {
314 		memset(&cmd, 0, sizeof(cmd));
315 		cmd.traffic_class = traffic_class;
316 		cmd.user_pri = usr_pri;
317 		cmd.inactivity_int =
318 			cpu_to_le32(WMI_IMPLICIT_PSTREAM_INACTIVITY_INT);
319 		/* Implicit streams are created with TSID 0xFF */
320 		cmd.tsid = WMI_IMPLICIT_PSTREAM;
321 		ath6kl_wmi_create_pstream_cmd(wmi, if_idx, &cmd);
322 	}
323 
324 	*ac = traffic_class;
325 
326 	return 0;
327 }
328 
329 int ath6kl_wmi_dot11_hdr_remove(struct wmi *wmi, struct sk_buff *skb)
330 {
331 	struct ieee80211_hdr_3addr *pwh, wh;
332 	struct ath6kl_llc_snap_hdr *llc_hdr;
333 	struct ethhdr eth_hdr;
334 	u32 hdr_size;
335 	u8 *datap;
336 	__le16 sub_type;
337 
338 	if (WARN_ON(skb == NULL))
339 		return -EINVAL;
340 
341 	datap = skb->data;
342 	pwh = (struct ieee80211_hdr_3addr *) datap;
343 
344 	sub_type = pwh->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE);
345 
346 	memcpy((u8 *) &wh, datap, sizeof(struct ieee80211_hdr_3addr));
347 
348 	/* Strip off the 802.11 header */
349 	if (sub_type == cpu_to_le16(IEEE80211_STYPE_QOS_DATA)) {
350 		hdr_size = roundup(sizeof(struct ieee80211_qos_hdr),
351 				   sizeof(u32));
352 		skb_pull(skb, hdr_size);
353 	} else if (sub_type == cpu_to_le16(IEEE80211_STYPE_DATA))
354 		skb_pull(skb, sizeof(struct ieee80211_hdr_3addr));
355 
356 	datap = skb->data;
357 	llc_hdr = (struct ath6kl_llc_snap_hdr *)(datap);
358 
359 	memset(&eth_hdr, 0, sizeof(eth_hdr));
360 	eth_hdr.h_proto = llc_hdr->eth_type;
361 
362 	switch ((le16_to_cpu(wh.frame_control)) &
363 		(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
364 	case 0:
365 		memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
366 		memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
367 		break;
368 	case IEEE80211_FCTL_TODS:
369 		memcpy(eth_hdr.h_dest, wh.addr3, ETH_ALEN);
370 		memcpy(eth_hdr.h_source, wh.addr2, ETH_ALEN);
371 		break;
372 	case IEEE80211_FCTL_FROMDS:
373 		memcpy(eth_hdr.h_dest, wh.addr1, ETH_ALEN);
374 		memcpy(eth_hdr.h_source, wh.addr3, ETH_ALEN);
375 		break;
376 	case IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS:
377 		break;
378 	}
379 
380 	skb_pull(skb, sizeof(struct ath6kl_llc_snap_hdr));
381 	skb_push(skb, sizeof(eth_hdr));
382 
383 	datap = skb->data;
384 
385 	memcpy(datap, &eth_hdr, sizeof(eth_hdr));
386 
387 	return 0;
388 }
389 
390 /*
391  * Performs 802.3 to DIX encapsulation for received packets.
392  * Assumes the entire 802.3 header is contigous.
393  */
394 int ath6kl_wmi_dot3_2_dix(struct sk_buff *skb)
395 {
396 	struct ath6kl_llc_snap_hdr *llc_hdr;
397 	struct ethhdr eth_hdr;
398 	u8 *datap;
399 
400 	if (WARN_ON(skb == NULL))
401 		return -EINVAL;
402 
403 	datap = skb->data;
404 
405 	memcpy(&eth_hdr, datap, sizeof(eth_hdr));
406 
407 	llc_hdr = (struct ath6kl_llc_snap_hdr *) (datap + sizeof(eth_hdr));
408 	eth_hdr.h_proto = llc_hdr->eth_type;
409 
410 	skb_pull(skb, sizeof(struct ath6kl_llc_snap_hdr));
411 	datap = skb->data;
412 
413 	memcpy(datap, &eth_hdr, sizeof(eth_hdr));
414 
415 	return 0;
416 }
417 
418 static int ath6kl_wmi_tx_complete_event_rx(u8 *datap, int len)
419 {
420 	struct tx_complete_msg_v1 *msg_v1;
421 	struct wmi_tx_complete_event *evt;
422 	int index;
423 	u16 size;
424 
425 	evt = (struct wmi_tx_complete_event *) datap;
426 
427 	ath6kl_dbg(ATH6KL_DBG_WMI, "comp: %d %d %d\n",
428 		   evt->num_msg, evt->msg_len, evt->msg_type);
429 
430 	for (index = 0; index < evt->num_msg; index++) {
431 		size = sizeof(struct wmi_tx_complete_event) +
432 		    (index * sizeof(struct tx_complete_msg_v1));
433 		msg_v1 = (struct tx_complete_msg_v1 *)(datap + size);
434 
435 		ath6kl_dbg(ATH6KL_DBG_WMI, "msg: %d %d %d %d\n",
436 			   msg_v1->status, msg_v1->pkt_id,
437 			   msg_v1->rate_idx, msg_v1->ack_failures);
438 	}
439 
440 	return 0;
441 }
442 
443 static int ath6kl_wmi_remain_on_chnl_event_rx(struct wmi *wmi, u8 *datap,
444 					      int len, struct ath6kl_vif *vif)
445 {
446 	struct wmi_remain_on_chnl_event *ev;
447 	u32 freq;
448 	u32 dur;
449 	struct ieee80211_channel *chan;
450 	struct ath6kl *ar = wmi->parent_dev;
451 	u32 id;
452 
453 	if (len < sizeof(*ev))
454 		return -EINVAL;
455 
456 	ev = (struct wmi_remain_on_chnl_event *) datap;
457 	freq = le32_to_cpu(ev->freq);
458 	dur = le32_to_cpu(ev->duration);
459 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl: freq=%u dur=%u\n",
460 		   freq, dur);
461 	chan = ieee80211_get_channel(ar->wiphy, freq);
462 	if (!chan) {
463 		ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl: Unknown channel "
464 			   "(freq=%u)\n", freq);
465 		return -EINVAL;
466 	}
467 	id = vif->last_roc_id;
468 	cfg80211_ready_on_channel(vif->ndev, id, chan, NL80211_CHAN_NO_HT,
469 				  dur, GFP_ATOMIC);
470 
471 	return 0;
472 }
473 
474 static int ath6kl_wmi_cancel_remain_on_chnl_event_rx(struct wmi *wmi,
475 						     u8 *datap, int len,
476 						     struct ath6kl_vif *vif)
477 {
478 	struct wmi_cancel_remain_on_chnl_event *ev;
479 	u32 freq;
480 	u32 dur;
481 	struct ieee80211_channel *chan;
482 	struct ath6kl *ar = wmi->parent_dev;
483 	u32 id;
484 
485 	if (len < sizeof(*ev))
486 		return -EINVAL;
487 
488 	ev = (struct wmi_cancel_remain_on_chnl_event *) datap;
489 	freq = le32_to_cpu(ev->freq);
490 	dur = le32_to_cpu(ev->duration);
491 	ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl: freq=%u dur=%u "
492 		   "status=%u\n", freq, dur, ev->status);
493 	chan = ieee80211_get_channel(ar->wiphy, freq);
494 	if (!chan) {
495 		ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl: Unknown "
496 			   "channel (freq=%u)\n", freq);
497 		return -EINVAL;
498 	}
499 	if (vif->last_cancel_roc_id &&
500 	    vif->last_cancel_roc_id + 1 == vif->last_roc_id)
501 		id = vif->last_cancel_roc_id; /* event for cancel command */
502 	else
503 		id = vif->last_roc_id; /* timeout on uncanceled r-o-c */
504 	vif->last_cancel_roc_id = 0;
505 	cfg80211_remain_on_channel_expired(vif->ndev, id, chan,
506 					   NL80211_CHAN_NO_HT, GFP_ATOMIC);
507 
508 	return 0;
509 }
510 
511 static int ath6kl_wmi_tx_status_event_rx(struct wmi *wmi, u8 *datap, int len,
512 					 struct ath6kl_vif *vif)
513 {
514 	struct wmi_tx_status_event *ev;
515 	u32 id;
516 
517 	if (len < sizeof(*ev))
518 		return -EINVAL;
519 
520 	ev = (struct wmi_tx_status_event *) datap;
521 	id = le32_to_cpu(ev->id);
522 	ath6kl_dbg(ATH6KL_DBG_WMI, "tx_status: id=%x ack_status=%u\n",
523 		   id, ev->ack_status);
524 	if (wmi->last_mgmt_tx_frame) {
525 		cfg80211_mgmt_tx_status(vif->ndev, id,
526 					wmi->last_mgmt_tx_frame,
527 					wmi->last_mgmt_tx_frame_len,
528 					!!ev->ack_status, GFP_ATOMIC);
529 		kfree(wmi->last_mgmt_tx_frame);
530 		wmi->last_mgmt_tx_frame = NULL;
531 		wmi->last_mgmt_tx_frame_len = 0;
532 	}
533 
534 	return 0;
535 }
536 
537 static int ath6kl_wmi_rx_probe_req_event_rx(struct wmi *wmi, u8 *datap, int len,
538 					    struct ath6kl_vif *vif)
539 {
540 	struct wmi_p2p_rx_probe_req_event *ev;
541 	u32 freq;
542 	u16 dlen;
543 
544 	if (len < sizeof(*ev))
545 		return -EINVAL;
546 
547 	ev = (struct wmi_p2p_rx_probe_req_event *) datap;
548 	freq = le32_to_cpu(ev->freq);
549 	dlen = le16_to_cpu(ev->len);
550 	if (datap + len < ev->data + dlen) {
551 		ath6kl_err("invalid wmi_p2p_rx_probe_req_event: "
552 			   "len=%d dlen=%u\n", len, dlen);
553 		return -EINVAL;
554 	}
555 	ath6kl_dbg(ATH6KL_DBG_WMI, "rx_probe_req: len=%u freq=%u "
556 		   "probe_req_report=%d\n",
557 		   dlen, freq, vif->probe_req_report);
558 
559 	if (vif->probe_req_report || vif->nw_type == AP_NETWORK)
560 		cfg80211_rx_mgmt(vif->ndev, freq, ev->data, dlen, GFP_ATOMIC);
561 
562 	return 0;
563 }
564 
565 static int ath6kl_wmi_p2p_capabilities_event_rx(u8 *datap, int len)
566 {
567 	struct wmi_p2p_capabilities_event *ev;
568 	u16 dlen;
569 
570 	if (len < sizeof(*ev))
571 		return -EINVAL;
572 
573 	ev = (struct wmi_p2p_capabilities_event *) datap;
574 	dlen = le16_to_cpu(ev->len);
575 	ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_capab: len=%u\n", dlen);
576 
577 	return 0;
578 }
579 
580 static int ath6kl_wmi_rx_action_event_rx(struct wmi *wmi, u8 *datap, int len,
581 					 struct ath6kl_vif *vif)
582 {
583 	struct wmi_rx_action_event *ev;
584 	u32 freq;
585 	u16 dlen;
586 
587 	if (len < sizeof(*ev))
588 		return -EINVAL;
589 
590 	ev = (struct wmi_rx_action_event *) datap;
591 	freq = le32_to_cpu(ev->freq);
592 	dlen = le16_to_cpu(ev->len);
593 	if (datap + len < ev->data + dlen) {
594 		ath6kl_err("invalid wmi_rx_action_event: "
595 			   "len=%d dlen=%u\n", len, dlen);
596 		return -EINVAL;
597 	}
598 	ath6kl_dbg(ATH6KL_DBG_WMI, "rx_action: len=%u freq=%u\n", dlen, freq);
599 	cfg80211_rx_mgmt(vif->ndev, freq, ev->data, dlen, GFP_ATOMIC);
600 
601 	return 0;
602 }
603 
604 static int ath6kl_wmi_p2p_info_event_rx(u8 *datap, int len)
605 {
606 	struct wmi_p2p_info_event *ev;
607 	u32 flags;
608 	u16 dlen;
609 
610 	if (len < sizeof(*ev))
611 		return -EINVAL;
612 
613 	ev = (struct wmi_p2p_info_event *) datap;
614 	flags = le32_to_cpu(ev->info_req_flags);
615 	dlen = le16_to_cpu(ev->len);
616 	ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: flags=%x len=%d\n", flags, dlen);
617 
618 	if (flags & P2P_FLAG_CAPABILITIES_REQ) {
619 		struct wmi_p2p_capabilities *cap;
620 		if (dlen < sizeof(*cap))
621 			return -EINVAL;
622 		cap = (struct wmi_p2p_capabilities *) ev->data;
623 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: GO Power Save = %d\n",
624 			   cap->go_power_save);
625 	}
626 
627 	if (flags & P2P_FLAG_MACADDR_REQ) {
628 		struct wmi_p2p_macaddr *mac;
629 		if (dlen < sizeof(*mac))
630 			return -EINVAL;
631 		mac = (struct wmi_p2p_macaddr *) ev->data;
632 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: MAC Address = %pM\n",
633 			   mac->mac_addr);
634 	}
635 
636 	if (flags & P2P_FLAG_HMODEL_REQ) {
637 		struct wmi_p2p_hmodel *mod;
638 		if (dlen < sizeof(*mod))
639 			return -EINVAL;
640 		mod = (struct wmi_p2p_hmodel *) ev->data;
641 		ath6kl_dbg(ATH6KL_DBG_WMI, "p2p_info: P2P Model = %d (%s)\n",
642 			   mod->p2p_model,
643 			   mod->p2p_model ? "host" : "firmware");
644 	}
645 	return 0;
646 }
647 
648 static inline struct sk_buff *ath6kl_wmi_get_new_buf(u32 size)
649 {
650 	struct sk_buff *skb;
651 
652 	skb = ath6kl_buf_alloc(size);
653 	if (!skb)
654 		return NULL;
655 
656 	skb_put(skb, size);
657 	if (size)
658 		memset(skb->data, 0, size);
659 
660 	return skb;
661 }
662 
663 /* Send a "simple" wmi command -- one with no arguments */
664 static int ath6kl_wmi_simple_cmd(struct wmi *wmi, u8 if_idx,
665 				 enum wmi_cmd_id cmd_id)
666 {
667 	struct sk_buff *skb;
668 	int ret;
669 
670 	skb = ath6kl_wmi_get_new_buf(0);
671 	if (!skb)
672 		return -ENOMEM;
673 
674 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, cmd_id, NO_SYNC_WMIFLAG);
675 
676 	return ret;
677 }
678 
679 static int ath6kl_wmi_ready_event_rx(struct wmi *wmi, u8 *datap, int len)
680 {
681 	struct wmi_ready_event_2 *ev = (struct wmi_ready_event_2 *) datap;
682 
683 	if (len < sizeof(struct wmi_ready_event_2))
684 		return -EINVAL;
685 
686 	ath6kl_ready_event(wmi->parent_dev, ev->mac_addr,
687 			   le32_to_cpu(ev->sw_version),
688 			   le32_to_cpu(ev->abi_version));
689 
690 	return 0;
691 }
692 
693 /*
694  * Mechanism to modify the roaming behavior in the firmware. The lower rssi
695  * at which the station has to roam can be passed with
696  * WMI_SET_LRSSI_SCAN_PARAMS. Subtract 96 from RSSI to get the signal level
697  * in dBm.
698  */
699 int ath6kl_wmi_set_roam_lrssi_cmd(struct wmi *wmi, u8 lrssi)
700 {
701 	struct sk_buff *skb;
702 	struct roam_ctrl_cmd *cmd;
703 
704 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
705 	if (!skb)
706 		return -ENOMEM;
707 
708 	cmd = (struct roam_ctrl_cmd *) skb->data;
709 
710 	cmd->info.params.lrssi_scan_period = cpu_to_le16(DEF_LRSSI_SCAN_PERIOD);
711 	cmd->info.params.lrssi_scan_threshold = a_cpu_to_sle16(lrssi +
712 						       DEF_SCAN_FOR_ROAM_INTVL);
713 	cmd->info.params.lrssi_roam_threshold = a_cpu_to_sle16(lrssi);
714 	cmd->info.params.roam_rssi_floor = DEF_LRSSI_ROAM_FLOOR;
715 	cmd->roam_ctrl = WMI_SET_LRSSI_SCAN_PARAMS;
716 
717 	ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
718 			    NO_SYNC_WMIFLAG);
719 
720 	return 0;
721 }
722 
723 int ath6kl_wmi_force_roam_cmd(struct wmi *wmi, const u8 *bssid)
724 {
725 	struct sk_buff *skb;
726 	struct roam_ctrl_cmd *cmd;
727 
728 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
729 	if (!skb)
730 		return -ENOMEM;
731 
732 	cmd = (struct roam_ctrl_cmd *) skb->data;
733 	memset(cmd, 0, sizeof(*cmd));
734 
735 	memcpy(cmd->info.bssid, bssid, ETH_ALEN);
736 	cmd->roam_ctrl = WMI_FORCE_ROAM;
737 
738 	ath6kl_dbg(ATH6KL_DBG_WMI, "force roam to %pM\n", bssid);
739 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
740 				   NO_SYNC_WMIFLAG);
741 }
742 
743 int ath6kl_wmi_set_roam_mode_cmd(struct wmi *wmi, enum wmi_roam_mode mode)
744 {
745 	struct sk_buff *skb;
746 	struct roam_ctrl_cmd *cmd;
747 
748 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
749 	if (!skb)
750 		return -ENOMEM;
751 
752 	cmd = (struct roam_ctrl_cmd *) skb->data;
753 	memset(cmd, 0, sizeof(*cmd));
754 
755 	cmd->info.roam_mode = mode;
756 	cmd->roam_ctrl = WMI_SET_ROAM_MODE;
757 
758 	ath6kl_dbg(ATH6KL_DBG_WMI, "set roam mode %d\n", mode);
759 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_ROAM_CTRL_CMDID,
760 				   NO_SYNC_WMIFLAG);
761 }
762 
763 static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len,
764 				       struct ath6kl_vif *vif)
765 {
766 	struct wmi_connect_event *ev;
767 	u8 *pie, *peie;
768 
769 	if (len < sizeof(struct wmi_connect_event))
770 		return -EINVAL;
771 
772 	ev = (struct wmi_connect_event *) datap;
773 
774 	if (vif->nw_type == AP_NETWORK) {
775 		/* AP mode start/STA connected event */
776 		struct net_device *dev = vif->ndev;
777 		if (memcmp(dev->dev_addr, ev->u.ap_bss.bssid, ETH_ALEN) == 0) {
778 			ath6kl_dbg(ATH6KL_DBG_WMI, "%s: freq %d bssid %pM "
779 				   "(AP started)\n",
780 				   __func__, le16_to_cpu(ev->u.ap_bss.ch),
781 				   ev->u.ap_bss.bssid);
782 			ath6kl_connect_ap_mode_bss(
783 				vif, le16_to_cpu(ev->u.ap_bss.ch));
784 		} else {
785 			ath6kl_dbg(ATH6KL_DBG_WMI, "%s: aid %u mac_addr %pM "
786 				   "auth=%u keymgmt=%u cipher=%u apsd_info=%u "
787 				   "(STA connected)\n",
788 				   __func__, ev->u.ap_sta.aid,
789 				   ev->u.ap_sta.mac_addr,
790 				   ev->u.ap_sta.auth,
791 				   ev->u.ap_sta.keymgmt,
792 				   le16_to_cpu(ev->u.ap_sta.cipher),
793 				   ev->u.ap_sta.apsd_info);
794 
795 			ath6kl_connect_ap_mode_sta(
796 				vif, ev->u.ap_sta.aid, ev->u.ap_sta.mac_addr,
797 				ev->u.ap_sta.keymgmt,
798 				le16_to_cpu(ev->u.ap_sta.cipher),
799 				ev->u.ap_sta.auth, ev->assoc_req_len,
800 				ev->assoc_info + ev->beacon_ie_len,
801 				ev->u.ap_sta.apsd_info);
802 		}
803 		return 0;
804 	}
805 
806 	/* STA/IBSS mode connection event */
807 
808 	ath6kl_dbg(ATH6KL_DBG_WMI,
809 		   "wmi event connect freq %d bssid %pM listen_intvl %d beacon_intvl %d type %d\n",
810 		   le16_to_cpu(ev->u.sta.ch), ev->u.sta.bssid,
811 		   le16_to_cpu(ev->u.sta.listen_intvl),
812 		   le16_to_cpu(ev->u.sta.beacon_intvl),
813 		   le32_to_cpu(ev->u.sta.nw_type));
814 
815 	/* Start of assoc rsp IEs */
816 	pie = ev->assoc_info + ev->beacon_ie_len +
817 	      ev->assoc_req_len + (sizeof(u16) * 3); /* capinfo, status, aid */
818 
819 	/* End of assoc rsp IEs */
820 	peie = ev->assoc_info + ev->beacon_ie_len + ev->assoc_req_len +
821 	    ev->assoc_resp_len;
822 
823 	while (pie < peie) {
824 		switch (*pie) {
825 		case WLAN_EID_VENDOR_SPECIFIC:
826 			if (pie[1] > 3 && pie[2] == 0x00 && pie[3] == 0x50 &&
827 			    pie[4] == 0xf2 && pie[5] == WMM_OUI_TYPE) {
828 				/* WMM OUT (00:50:F2) */
829 				if (pie[1] > 5
830 				    && pie[6] == WMM_PARAM_OUI_SUBTYPE)
831 					wmi->is_wmm_enabled = true;
832 			}
833 			break;
834 		}
835 
836 		if (wmi->is_wmm_enabled)
837 			break;
838 
839 		pie += pie[1] + 2;
840 	}
841 
842 	ath6kl_connect_event(vif, le16_to_cpu(ev->u.sta.ch),
843 			     ev->u.sta.bssid,
844 			     le16_to_cpu(ev->u.sta.listen_intvl),
845 			     le16_to_cpu(ev->u.sta.beacon_intvl),
846 			     le32_to_cpu(ev->u.sta.nw_type),
847 			     ev->beacon_ie_len, ev->assoc_req_len,
848 			     ev->assoc_resp_len, ev->assoc_info);
849 
850 	return 0;
851 }
852 
853 static struct country_code_to_enum_rd *
854 ath6kl_regd_find_country(u16 countryCode)
855 {
856 	int i;
857 
858 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
859 		if (allCountries[i].countryCode == countryCode)
860 			return &allCountries[i];
861 	}
862 
863 	return NULL;
864 }
865 
866 static struct reg_dmn_pair_mapping *
867 ath6kl_get_regpair(u16 regdmn)
868 {
869 	int i;
870 
871 	if (regdmn == NO_ENUMRD)
872 		return NULL;
873 
874 	for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) {
875 		if (regDomainPairs[i].regDmnEnum == regdmn)
876 			return &regDomainPairs[i];
877 	}
878 
879 	return NULL;
880 }
881 
882 static struct country_code_to_enum_rd *
883 ath6kl_regd_find_country_by_rd(u16 regdmn)
884 {
885 	int i;
886 
887 	for (i = 0; i < ARRAY_SIZE(allCountries); i++) {
888 		if (allCountries[i].regDmnEnum == regdmn)
889 			return &allCountries[i];
890 	}
891 
892 	return NULL;
893 }
894 
895 static void ath6kl_wmi_regdomain_event(struct wmi *wmi, u8 *datap, int len)
896 {
897 
898 	struct ath6kl_wmi_regdomain *ev;
899 	struct country_code_to_enum_rd *country = NULL;
900 	struct reg_dmn_pair_mapping *regpair = NULL;
901 	char alpha2[2];
902 	u32 reg_code;
903 
904 	ev = (struct ath6kl_wmi_regdomain *) datap;
905 	reg_code = le32_to_cpu(ev->reg_code);
906 
907 	if ((reg_code >> ATH6KL_COUNTRY_RD_SHIFT) & COUNTRY_ERD_FLAG)
908 		country = ath6kl_regd_find_country((u16) reg_code);
909 	else if (!(((u16) reg_code & WORLD_SKU_MASK) == WORLD_SKU_PREFIX)) {
910 
911 		regpair = ath6kl_get_regpair((u16) reg_code);
912 		country = ath6kl_regd_find_country_by_rd((u16) reg_code);
913 		ath6kl_dbg(ATH6KL_DBG_WMI, "Regpair used: 0x%0x\n",
914 				regpair->regDmnEnum);
915 	}
916 
917 	if (country && wmi->parent_dev->wiphy_registered) {
918 		alpha2[0] = country->isoName[0];
919 		alpha2[1] = country->isoName[1];
920 
921 		regulatory_hint(wmi->parent_dev->wiphy, alpha2);
922 
923 		ath6kl_dbg(ATH6KL_DBG_WMI, "Country alpha2 being used: %c%c\n",
924 				alpha2[0], alpha2[1]);
925 	}
926 }
927 
928 static int ath6kl_wmi_disconnect_event_rx(struct wmi *wmi, u8 *datap, int len,
929 					  struct ath6kl_vif *vif)
930 {
931 	struct wmi_disconnect_event *ev;
932 	wmi->traffic_class = 100;
933 
934 	if (len < sizeof(struct wmi_disconnect_event))
935 		return -EINVAL;
936 
937 	ev = (struct wmi_disconnect_event *) datap;
938 
939 	ath6kl_dbg(ATH6KL_DBG_WMI,
940 		   "wmi event disconnect proto_reason %d bssid %pM wmi_reason %d assoc_resp_len %d\n",
941 		   le16_to_cpu(ev->proto_reason_status), ev->bssid,
942 		   ev->disconn_reason, ev->assoc_resp_len);
943 
944 	wmi->is_wmm_enabled = false;
945 
946 	ath6kl_disconnect_event(vif, ev->disconn_reason,
947 				ev->bssid, ev->assoc_resp_len, ev->assoc_info,
948 				le16_to_cpu(ev->proto_reason_status));
949 
950 	return 0;
951 }
952 
953 static int ath6kl_wmi_peer_node_event_rx(struct wmi *wmi, u8 *datap, int len)
954 {
955 	struct wmi_peer_node_event *ev;
956 
957 	if (len < sizeof(struct wmi_peer_node_event))
958 		return -EINVAL;
959 
960 	ev = (struct wmi_peer_node_event *) datap;
961 
962 	if (ev->event_code == PEER_NODE_JOIN_EVENT)
963 		ath6kl_dbg(ATH6KL_DBG_WMI, "joined node with mac addr: %pM\n",
964 			   ev->peer_mac_addr);
965 	else if (ev->event_code == PEER_NODE_LEAVE_EVENT)
966 		ath6kl_dbg(ATH6KL_DBG_WMI, "left node with mac addr: %pM\n",
967 			   ev->peer_mac_addr);
968 
969 	return 0;
970 }
971 
972 static int ath6kl_wmi_tkip_micerr_event_rx(struct wmi *wmi, u8 *datap, int len,
973 					   struct ath6kl_vif *vif)
974 {
975 	struct wmi_tkip_micerr_event *ev;
976 
977 	if (len < sizeof(struct wmi_tkip_micerr_event))
978 		return -EINVAL;
979 
980 	ev = (struct wmi_tkip_micerr_event *) datap;
981 
982 	ath6kl_tkip_micerr_event(vif, ev->key_id, ev->is_mcast);
983 
984 	return 0;
985 }
986 
987 void ath6kl_wmi_sscan_timer(unsigned long ptr)
988 {
989 	struct ath6kl_vif *vif = (struct ath6kl_vif *) ptr;
990 
991 	cfg80211_sched_scan_results(vif->ar->wiphy);
992 }
993 
994 static int ath6kl_wmi_bssinfo_event_rx(struct wmi *wmi, u8 *datap, int len,
995 				       struct ath6kl_vif *vif)
996 {
997 	struct wmi_bss_info_hdr2 *bih;
998 	u8 *buf;
999 	struct ieee80211_channel *channel;
1000 	struct ath6kl *ar = wmi->parent_dev;
1001 	struct ieee80211_mgmt *mgmt;
1002 	struct cfg80211_bss *bss;
1003 
1004 	if (len <= sizeof(struct wmi_bss_info_hdr2))
1005 		return -EINVAL;
1006 
1007 	bih = (struct wmi_bss_info_hdr2 *) datap;
1008 	buf = datap + sizeof(struct wmi_bss_info_hdr2);
1009 	len -= sizeof(struct wmi_bss_info_hdr2);
1010 
1011 	ath6kl_dbg(ATH6KL_DBG_WMI,
1012 		   "bss info evt - ch %u, snr %d, rssi %d, bssid \"%pM\" "
1013 		   "frame_type=%d\n",
1014 		   bih->ch, bih->snr, bih->snr - 95, bih->bssid,
1015 		   bih->frame_type);
1016 
1017 	if (bih->frame_type != BEACON_FTYPE &&
1018 	    bih->frame_type != PROBERESP_FTYPE)
1019 		return 0; /* Only update BSS table for now */
1020 
1021 	if (bih->frame_type == BEACON_FTYPE &&
1022 	    test_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags)) {
1023 		clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
1024 		ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1025 					 NONE_BSS_FILTER, 0);
1026 	}
1027 
1028 	channel = ieee80211_get_channel(ar->wiphy, le16_to_cpu(bih->ch));
1029 	if (channel == NULL)
1030 		return -EINVAL;
1031 
1032 	if (len < 8 + 2 + 2)
1033 		return -EINVAL;
1034 
1035 	if (bih->frame_type == BEACON_FTYPE && test_bit(CONNECTED, &vif->flags)
1036 	    && memcmp(bih->bssid, vif->bssid, ETH_ALEN) == 0) {
1037 		const u8 *tim;
1038 		tim = cfg80211_find_ie(WLAN_EID_TIM, buf + 8 + 2 + 2,
1039 				       len - 8 - 2 - 2);
1040 		if (tim && tim[1] >= 2) {
1041 			vif->assoc_bss_dtim_period = tim[3];
1042 			set_bit(DTIM_PERIOD_AVAIL, &vif->flags);
1043 		}
1044 	}
1045 
1046 	/*
1047 	 * In theory, use of cfg80211_inform_bss() would be more natural here
1048 	 * since we do not have the full frame. However, at least for now,
1049 	 * cfg80211 can only distinguish Beacon and Probe Response frames from
1050 	 * each other when using cfg80211_inform_bss_frame(), so let's build a
1051 	 * fake IEEE 802.11 header to be able to take benefit of this.
1052 	 */
1053 	mgmt = kmalloc(24 + len, GFP_ATOMIC);
1054 	if (mgmt == NULL)
1055 		return -EINVAL;
1056 
1057 	if (bih->frame_type == BEACON_FTYPE) {
1058 		mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1059 						  IEEE80211_STYPE_BEACON);
1060 		memset(mgmt->da, 0xff, ETH_ALEN);
1061 	} else {
1062 		struct net_device *dev = vif->ndev;
1063 
1064 		mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1065 						  IEEE80211_STYPE_PROBE_RESP);
1066 		memcpy(mgmt->da, dev->dev_addr, ETH_ALEN);
1067 	}
1068 	mgmt->duration = cpu_to_le16(0);
1069 	memcpy(mgmt->sa, bih->bssid, ETH_ALEN);
1070 	memcpy(mgmt->bssid, bih->bssid, ETH_ALEN);
1071 	mgmt->seq_ctrl = cpu_to_le16(0);
1072 
1073 	memcpy(&mgmt->u.beacon, buf, len);
1074 
1075 	bss = cfg80211_inform_bss_frame(ar->wiphy, channel, mgmt,
1076 					24 + len, (bih->snr - 95) * 100,
1077 					GFP_ATOMIC);
1078 	kfree(mgmt);
1079 	if (bss == NULL)
1080 		return -ENOMEM;
1081 	cfg80211_put_bss(bss);
1082 
1083 	/*
1084 	 * Firmware doesn't return any event when scheduled scan has
1085 	 * finished, so we need to use a timer to find out when there are
1086 	 * no more results.
1087 	 *
1088 	 * The timer is started from the first bss info received, otherwise
1089 	 * the timer would not ever fire if the scan interval is short
1090 	 * enough.
1091 	 */
1092 	if (ar->state == ATH6KL_STATE_SCHED_SCAN &&
1093 	    !timer_pending(&vif->sched_scan_timer)) {
1094 		mod_timer(&vif->sched_scan_timer, jiffies +
1095 			  msecs_to_jiffies(ATH6KL_SCHED_SCAN_RESULT_DELAY));
1096 	}
1097 
1098 	return 0;
1099 }
1100 
1101 /* Inactivity timeout of a fatpipe(pstream) at the target */
1102 static int ath6kl_wmi_pstream_timeout_event_rx(struct wmi *wmi, u8 *datap,
1103 					       int len)
1104 {
1105 	struct wmi_pstream_timeout_event *ev;
1106 
1107 	if (len < sizeof(struct wmi_pstream_timeout_event))
1108 		return -EINVAL;
1109 
1110 	ev = (struct wmi_pstream_timeout_event *) datap;
1111 
1112 	/*
1113 	 * When the pstream (fat pipe == AC) timesout, it means there were
1114 	 * no thinStreams within this pstream & it got implicitly created
1115 	 * due to data flow on this AC. We start the inactivity timer only
1116 	 * for implicitly created pstream. Just reset the host state.
1117 	 */
1118 	spin_lock_bh(&wmi->lock);
1119 	wmi->stream_exist_for_ac[ev->traffic_class] = 0;
1120 	wmi->fat_pipe_exist &= ~(1 << ev->traffic_class);
1121 	spin_unlock_bh(&wmi->lock);
1122 
1123 	/* Indicate inactivity to driver layer for this fatpipe (pstream) */
1124 	ath6kl_indicate_tx_activity(wmi->parent_dev, ev->traffic_class, false);
1125 
1126 	return 0;
1127 }
1128 
1129 static int ath6kl_wmi_bitrate_reply_rx(struct wmi *wmi, u8 *datap, int len)
1130 {
1131 	struct wmi_bit_rate_reply *reply;
1132 	s32 rate;
1133 	u32 sgi, index;
1134 
1135 	if (len < sizeof(struct wmi_bit_rate_reply))
1136 		return -EINVAL;
1137 
1138 	reply = (struct wmi_bit_rate_reply *) datap;
1139 
1140 	ath6kl_dbg(ATH6KL_DBG_WMI, "rateindex %d\n", reply->rate_index);
1141 
1142 	if (reply->rate_index == (s8) RATE_AUTO) {
1143 		rate = RATE_AUTO;
1144 	} else {
1145 		index = reply->rate_index & 0x7f;
1146 		sgi = (reply->rate_index & 0x80) ? 1 : 0;
1147 		rate = wmi_rate_tbl[index][sgi];
1148 	}
1149 
1150 	ath6kl_wakeup_event(wmi->parent_dev);
1151 
1152 	return 0;
1153 }
1154 
1155 static int ath6kl_wmi_test_rx(struct wmi *wmi, u8 *datap, int len)
1156 {
1157 	ath6kl_tm_rx_event(wmi->parent_dev, datap, len);
1158 
1159 	return 0;
1160 }
1161 
1162 static int ath6kl_wmi_ratemask_reply_rx(struct wmi *wmi, u8 *datap, int len)
1163 {
1164 	if (len < sizeof(struct wmi_fix_rates_reply))
1165 		return -EINVAL;
1166 
1167 	ath6kl_wakeup_event(wmi->parent_dev);
1168 
1169 	return 0;
1170 }
1171 
1172 static int ath6kl_wmi_ch_list_reply_rx(struct wmi *wmi, u8 *datap, int len)
1173 {
1174 	if (len < sizeof(struct wmi_channel_list_reply))
1175 		return -EINVAL;
1176 
1177 	ath6kl_wakeup_event(wmi->parent_dev);
1178 
1179 	return 0;
1180 }
1181 
1182 static int ath6kl_wmi_tx_pwr_reply_rx(struct wmi *wmi, u8 *datap, int len)
1183 {
1184 	struct wmi_tx_pwr_reply *reply;
1185 
1186 	if (len < sizeof(struct wmi_tx_pwr_reply))
1187 		return -EINVAL;
1188 
1189 	reply = (struct wmi_tx_pwr_reply *) datap;
1190 	ath6kl_txpwr_rx_evt(wmi->parent_dev, reply->dbM);
1191 
1192 	return 0;
1193 }
1194 
1195 static int ath6kl_wmi_keepalive_reply_rx(struct wmi *wmi, u8 *datap, int len)
1196 {
1197 	if (len < sizeof(struct wmi_get_keepalive_cmd))
1198 		return -EINVAL;
1199 
1200 	ath6kl_wakeup_event(wmi->parent_dev);
1201 
1202 	return 0;
1203 }
1204 
1205 static int ath6kl_wmi_scan_complete_rx(struct wmi *wmi, u8 *datap, int len,
1206 				       struct ath6kl_vif *vif)
1207 {
1208 	struct wmi_scan_complete_event *ev;
1209 
1210 	ev = (struct wmi_scan_complete_event *) datap;
1211 
1212 	ath6kl_scan_complete_evt(vif, a_sle32_to_cpu(ev->status));
1213 	wmi->is_probe_ssid = false;
1214 
1215 	return 0;
1216 }
1217 
1218 static int ath6kl_wmi_neighbor_report_event_rx(struct wmi *wmi, u8 *datap,
1219 					       int len, struct ath6kl_vif *vif)
1220 {
1221 	struct wmi_neighbor_report_event *ev;
1222 	u8 i;
1223 
1224 	if (len < sizeof(*ev))
1225 		return -EINVAL;
1226 	ev = (struct wmi_neighbor_report_event *) datap;
1227 	if (sizeof(*ev) + ev->num_neighbors * sizeof(struct wmi_neighbor_info)
1228 	    > len) {
1229 		ath6kl_dbg(ATH6KL_DBG_WMI, "truncated neighbor event "
1230 			   "(num=%d len=%d)\n", ev->num_neighbors, len);
1231 		return -EINVAL;
1232 	}
1233 	for (i = 0; i < ev->num_neighbors; i++) {
1234 		ath6kl_dbg(ATH6KL_DBG_WMI, "neighbor %d/%d - %pM 0x%x\n",
1235 			   i + 1, ev->num_neighbors, ev->neighbor[i].bssid,
1236 			   ev->neighbor[i].bss_flags);
1237 		cfg80211_pmksa_candidate_notify(vif->ndev, i,
1238 						ev->neighbor[i].bssid,
1239 						!!(ev->neighbor[i].bss_flags &
1240 						   WMI_PREAUTH_CAPABLE_BSS),
1241 						GFP_ATOMIC);
1242 	}
1243 
1244 	return 0;
1245 }
1246 
1247 /*
1248  * Target is reporting a programming error.  This is for
1249  * developer aid only.  Target only checks a few common violations
1250  * and it is responsibility of host to do all error checking.
1251  * Behavior of target after wmi error event is undefined.
1252  * A reset is recommended.
1253  */
1254 static int ath6kl_wmi_error_event_rx(struct wmi *wmi, u8 *datap, int len)
1255 {
1256 	const char *type = "unknown error";
1257 	struct wmi_cmd_error_event *ev;
1258 	ev = (struct wmi_cmd_error_event *) datap;
1259 
1260 	switch (ev->err_code) {
1261 	case INVALID_PARAM:
1262 		type = "invalid parameter";
1263 		break;
1264 	case ILLEGAL_STATE:
1265 		type = "invalid state";
1266 		break;
1267 	case INTERNAL_ERROR:
1268 		type = "internal error";
1269 		break;
1270 	}
1271 
1272 	ath6kl_dbg(ATH6KL_DBG_WMI, "programming error, cmd=%d %s\n",
1273 		   ev->cmd_id, type);
1274 
1275 	return 0;
1276 }
1277 
1278 static int ath6kl_wmi_stats_event_rx(struct wmi *wmi, u8 *datap, int len,
1279 				     struct ath6kl_vif *vif)
1280 {
1281 	ath6kl_tgt_stats_event(vif, datap, len);
1282 
1283 	return 0;
1284 }
1285 
1286 static u8 ath6kl_wmi_get_upper_threshold(s16 rssi,
1287 					 struct sq_threshold_params *sq_thresh,
1288 					 u32 size)
1289 {
1290 	u32 index;
1291 	u8 threshold = (u8) sq_thresh->upper_threshold[size - 1];
1292 
1293 	/* The list is already in sorted order. Get the next lower value */
1294 	for (index = 0; index < size; index++) {
1295 		if (rssi < sq_thresh->upper_threshold[index]) {
1296 			threshold = (u8) sq_thresh->upper_threshold[index];
1297 			break;
1298 		}
1299 	}
1300 
1301 	return threshold;
1302 }
1303 
1304 static u8 ath6kl_wmi_get_lower_threshold(s16 rssi,
1305 					 struct sq_threshold_params *sq_thresh,
1306 					 u32 size)
1307 {
1308 	u32 index;
1309 	u8 threshold = (u8) sq_thresh->lower_threshold[size - 1];
1310 
1311 	/* The list is already in sorted order. Get the next lower value */
1312 	for (index = 0; index < size; index++) {
1313 		if (rssi > sq_thresh->lower_threshold[index]) {
1314 			threshold = (u8) sq_thresh->lower_threshold[index];
1315 			break;
1316 		}
1317 	}
1318 
1319 	return threshold;
1320 }
1321 
1322 static int ath6kl_wmi_send_rssi_threshold_params(struct wmi *wmi,
1323 			struct wmi_rssi_threshold_params_cmd *rssi_cmd)
1324 {
1325 	struct sk_buff *skb;
1326 	struct wmi_rssi_threshold_params_cmd *cmd;
1327 
1328 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1329 	if (!skb)
1330 		return -ENOMEM;
1331 
1332 	cmd = (struct wmi_rssi_threshold_params_cmd *) skb->data;
1333 	memcpy(cmd, rssi_cmd, sizeof(struct wmi_rssi_threshold_params_cmd));
1334 
1335 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_RSSI_THRESHOLD_PARAMS_CMDID,
1336 				   NO_SYNC_WMIFLAG);
1337 }
1338 
1339 static int ath6kl_wmi_rssi_threshold_event_rx(struct wmi *wmi, u8 *datap,
1340 					      int len)
1341 {
1342 	struct wmi_rssi_threshold_event *reply;
1343 	struct wmi_rssi_threshold_params_cmd cmd;
1344 	struct sq_threshold_params *sq_thresh;
1345 	enum wmi_rssi_threshold_val new_threshold;
1346 	u8 upper_rssi_threshold, lower_rssi_threshold;
1347 	s16 rssi;
1348 	int ret;
1349 
1350 	if (len < sizeof(struct wmi_rssi_threshold_event))
1351 		return -EINVAL;
1352 
1353 	reply = (struct wmi_rssi_threshold_event *) datap;
1354 	new_threshold = (enum wmi_rssi_threshold_val) reply->range;
1355 	rssi = a_sle16_to_cpu(reply->rssi);
1356 
1357 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_RSSI];
1358 
1359 	/*
1360 	 * Identify the threshold breached and communicate that to the app.
1361 	 * After that install a new set of thresholds based on the signal
1362 	 * quality reported by the target
1363 	 */
1364 	if (new_threshold) {
1365 		/* Upper threshold breached */
1366 		if (rssi < sq_thresh->upper_threshold[0]) {
1367 			ath6kl_dbg(ATH6KL_DBG_WMI,
1368 				"spurious upper rssi threshold event: %d\n",
1369 				rssi);
1370 		} else if ((rssi < sq_thresh->upper_threshold[1]) &&
1371 			   (rssi >= sq_thresh->upper_threshold[0])) {
1372 			new_threshold = WMI_RSSI_THRESHOLD1_ABOVE;
1373 		} else if ((rssi < sq_thresh->upper_threshold[2]) &&
1374 			   (rssi >= sq_thresh->upper_threshold[1])) {
1375 			new_threshold = WMI_RSSI_THRESHOLD2_ABOVE;
1376 		} else if ((rssi < sq_thresh->upper_threshold[3]) &&
1377 			   (rssi >= sq_thresh->upper_threshold[2])) {
1378 			new_threshold = WMI_RSSI_THRESHOLD3_ABOVE;
1379 		} else if ((rssi < sq_thresh->upper_threshold[4]) &&
1380 			   (rssi >= sq_thresh->upper_threshold[3])) {
1381 			new_threshold = WMI_RSSI_THRESHOLD4_ABOVE;
1382 		} else if ((rssi < sq_thresh->upper_threshold[5]) &&
1383 			   (rssi >= sq_thresh->upper_threshold[4])) {
1384 			new_threshold = WMI_RSSI_THRESHOLD5_ABOVE;
1385 		} else if (rssi >= sq_thresh->upper_threshold[5]) {
1386 			new_threshold = WMI_RSSI_THRESHOLD6_ABOVE;
1387 		}
1388 	} else {
1389 		/* Lower threshold breached */
1390 		if (rssi > sq_thresh->lower_threshold[0]) {
1391 			ath6kl_dbg(ATH6KL_DBG_WMI,
1392 				"spurious lower rssi threshold event: %d %d\n",
1393 				rssi, sq_thresh->lower_threshold[0]);
1394 		} else if ((rssi > sq_thresh->lower_threshold[1]) &&
1395 			   (rssi <= sq_thresh->lower_threshold[0])) {
1396 			new_threshold = WMI_RSSI_THRESHOLD6_BELOW;
1397 		} else if ((rssi > sq_thresh->lower_threshold[2]) &&
1398 			   (rssi <= sq_thresh->lower_threshold[1])) {
1399 			new_threshold = WMI_RSSI_THRESHOLD5_BELOW;
1400 		} else if ((rssi > sq_thresh->lower_threshold[3]) &&
1401 			   (rssi <= sq_thresh->lower_threshold[2])) {
1402 			new_threshold = WMI_RSSI_THRESHOLD4_BELOW;
1403 		} else if ((rssi > sq_thresh->lower_threshold[4]) &&
1404 			   (rssi <= sq_thresh->lower_threshold[3])) {
1405 			new_threshold = WMI_RSSI_THRESHOLD3_BELOW;
1406 		} else if ((rssi > sq_thresh->lower_threshold[5]) &&
1407 			   (rssi <= sq_thresh->lower_threshold[4])) {
1408 			new_threshold = WMI_RSSI_THRESHOLD2_BELOW;
1409 		} else if (rssi <= sq_thresh->lower_threshold[5]) {
1410 			new_threshold = WMI_RSSI_THRESHOLD1_BELOW;
1411 		}
1412 	}
1413 
1414 	/* Calculate and install the next set of thresholds */
1415 	lower_rssi_threshold = ath6kl_wmi_get_lower_threshold(rssi, sq_thresh,
1416 				       sq_thresh->lower_threshold_valid_count);
1417 	upper_rssi_threshold = ath6kl_wmi_get_upper_threshold(rssi, sq_thresh,
1418 				       sq_thresh->upper_threshold_valid_count);
1419 
1420 	/* Issue a wmi command to install the thresholds */
1421 	cmd.thresh_above1_val = a_cpu_to_sle16(upper_rssi_threshold);
1422 	cmd.thresh_below1_val = a_cpu_to_sle16(lower_rssi_threshold);
1423 	cmd.weight = sq_thresh->weight;
1424 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1425 
1426 	ret = ath6kl_wmi_send_rssi_threshold_params(wmi, &cmd);
1427 	if (ret) {
1428 		ath6kl_err("unable to configure rssi thresholds\n");
1429 		return -EIO;
1430 	}
1431 
1432 	return 0;
1433 }
1434 
1435 static int ath6kl_wmi_cac_event_rx(struct wmi *wmi, u8 *datap, int len,
1436 				   struct ath6kl_vif *vif)
1437 {
1438 	struct wmi_cac_event *reply;
1439 	struct ieee80211_tspec_ie *ts;
1440 	u16 active_tsids, tsinfo;
1441 	u8 tsid, index;
1442 	u8 ts_id;
1443 
1444 	if (len < sizeof(struct wmi_cac_event))
1445 		return -EINVAL;
1446 
1447 	reply = (struct wmi_cac_event *) datap;
1448 
1449 	if ((reply->cac_indication == CAC_INDICATION_ADMISSION_RESP) &&
1450 	    (reply->status_code != IEEE80211_TSPEC_STATUS_ADMISS_ACCEPTED)) {
1451 
1452 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1453 		tsinfo = le16_to_cpu(ts->tsinfo);
1454 		tsid = (tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1455 			IEEE80211_WMM_IE_TSPEC_TID_MASK;
1456 
1457 		ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1458 					      reply->ac, tsid);
1459 	} else if (reply->cac_indication == CAC_INDICATION_NO_RESP) {
1460 		/*
1461 		 * Following assumes that there is only one outstanding
1462 		 * ADDTS request when this event is received
1463 		 */
1464 		spin_lock_bh(&wmi->lock);
1465 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1466 		spin_unlock_bh(&wmi->lock);
1467 
1468 		for (index = 0; index < sizeof(active_tsids) * 8; index++) {
1469 			if ((active_tsids >> index) & 1)
1470 				break;
1471 		}
1472 		if (index < (sizeof(active_tsids) * 8))
1473 			ath6kl_wmi_delete_pstream_cmd(wmi, vif->fw_vif_idx,
1474 						      reply->ac, index);
1475 	}
1476 
1477 	/*
1478 	 * Clear active tsids and Add missing handling
1479 	 * for delete qos stream from AP
1480 	 */
1481 	else if (reply->cac_indication == CAC_INDICATION_DELETE) {
1482 
1483 		ts = (struct ieee80211_tspec_ie *) &(reply->tspec_suggestion);
1484 		tsinfo = le16_to_cpu(ts->tsinfo);
1485 		ts_id = ((tsinfo >> IEEE80211_WMM_IE_TSPEC_TID_SHIFT) &
1486 			 IEEE80211_WMM_IE_TSPEC_TID_MASK);
1487 
1488 		spin_lock_bh(&wmi->lock);
1489 		wmi->stream_exist_for_ac[reply->ac] &= ~(1 << ts_id);
1490 		active_tsids = wmi->stream_exist_for_ac[reply->ac];
1491 		spin_unlock_bh(&wmi->lock);
1492 
1493 		/* Indicate stream inactivity to driver layer only if all tsids
1494 		 * within this AC are deleted.
1495 		 */
1496 		if (!active_tsids) {
1497 			ath6kl_indicate_tx_activity(wmi->parent_dev, reply->ac,
1498 						    false);
1499 			wmi->fat_pipe_exist &= ~(1 << reply->ac);
1500 		}
1501 	}
1502 
1503 	return 0;
1504 }
1505 
1506 static int ath6kl_wmi_send_snr_threshold_params(struct wmi *wmi,
1507 			struct wmi_snr_threshold_params_cmd *snr_cmd)
1508 {
1509 	struct sk_buff *skb;
1510 	struct wmi_snr_threshold_params_cmd *cmd;
1511 
1512 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1513 	if (!skb)
1514 		return -ENOMEM;
1515 
1516 	cmd = (struct wmi_snr_threshold_params_cmd *) skb->data;
1517 	memcpy(cmd, snr_cmd, sizeof(struct wmi_snr_threshold_params_cmd));
1518 
1519 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SNR_THRESHOLD_PARAMS_CMDID,
1520 				   NO_SYNC_WMIFLAG);
1521 }
1522 
1523 static int ath6kl_wmi_snr_threshold_event_rx(struct wmi *wmi, u8 *datap,
1524 					     int len)
1525 {
1526 	struct wmi_snr_threshold_event *reply;
1527 	struct sq_threshold_params *sq_thresh;
1528 	struct wmi_snr_threshold_params_cmd cmd;
1529 	enum wmi_snr_threshold_val new_threshold;
1530 	u8 upper_snr_threshold, lower_snr_threshold;
1531 	s16 snr;
1532 	int ret;
1533 
1534 	if (len < sizeof(struct wmi_snr_threshold_event))
1535 		return -EINVAL;
1536 
1537 	reply = (struct wmi_snr_threshold_event *) datap;
1538 
1539 	new_threshold = (enum wmi_snr_threshold_val) reply->range;
1540 	snr = reply->snr;
1541 
1542 	sq_thresh = &wmi->sq_threshld[SIGNAL_QUALITY_METRICS_SNR];
1543 
1544 	/*
1545 	 * Identify the threshold breached and communicate that to the app.
1546 	 * After that install a new set of thresholds based on the signal
1547 	 * quality reported by the target.
1548 	 */
1549 	if (new_threshold) {
1550 		/* Upper threshold breached */
1551 		if (snr < sq_thresh->upper_threshold[0]) {
1552 			ath6kl_dbg(ATH6KL_DBG_WMI,
1553 				"spurious upper snr threshold event: %d\n",
1554 				snr);
1555 		} else if ((snr < sq_thresh->upper_threshold[1]) &&
1556 			   (snr >= sq_thresh->upper_threshold[0])) {
1557 			new_threshold = WMI_SNR_THRESHOLD1_ABOVE;
1558 		} else if ((snr < sq_thresh->upper_threshold[2]) &&
1559 			   (snr >= sq_thresh->upper_threshold[1])) {
1560 			new_threshold = WMI_SNR_THRESHOLD2_ABOVE;
1561 		} else if ((snr < sq_thresh->upper_threshold[3]) &&
1562 			   (snr >= sq_thresh->upper_threshold[2])) {
1563 			new_threshold = WMI_SNR_THRESHOLD3_ABOVE;
1564 		} else if (snr >= sq_thresh->upper_threshold[3]) {
1565 			new_threshold = WMI_SNR_THRESHOLD4_ABOVE;
1566 		}
1567 	} else {
1568 		/* Lower threshold breached */
1569 		if (snr > sq_thresh->lower_threshold[0]) {
1570 			ath6kl_dbg(ATH6KL_DBG_WMI,
1571 				"spurious lower snr threshold event: %d\n",
1572 				sq_thresh->lower_threshold[0]);
1573 		} else if ((snr > sq_thresh->lower_threshold[1]) &&
1574 			   (snr <= sq_thresh->lower_threshold[0])) {
1575 			new_threshold = WMI_SNR_THRESHOLD4_BELOW;
1576 		} else if ((snr > sq_thresh->lower_threshold[2]) &&
1577 			   (snr <= sq_thresh->lower_threshold[1])) {
1578 			new_threshold = WMI_SNR_THRESHOLD3_BELOW;
1579 		} else if ((snr > sq_thresh->lower_threshold[3]) &&
1580 			   (snr <= sq_thresh->lower_threshold[2])) {
1581 			new_threshold = WMI_SNR_THRESHOLD2_BELOW;
1582 		} else if (snr <= sq_thresh->lower_threshold[3]) {
1583 			new_threshold = WMI_SNR_THRESHOLD1_BELOW;
1584 		}
1585 	}
1586 
1587 	/* Calculate and install the next set of thresholds */
1588 	lower_snr_threshold = ath6kl_wmi_get_lower_threshold(snr, sq_thresh,
1589 				       sq_thresh->lower_threshold_valid_count);
1590 	upper_snr_threshold = ath6kl_wmi_get_upper_threshold(snr, sq_thresh,
1591 				       sq_thresh->upper_threshold_valid_count);
1592 
1593 	/* Issue a wmi command to install the thresholds */
1594 	cmd.thresh_above1_val = upper_snr_threshold;
1595 	cmd.thresh_below1_val = lower_snr_threshold;
1596 	cmd.weight = sq_thresh->weight;
1597 	cmd.poll_time = cpu_to_le32(sq_thresh->polling_interval);
1598 
1599 	ath6kl_dbg(ATH6KL_DBG_WMI,
1600 		   "snr: %d, threshold: %d, lower: %d, upper: %d\n",
1601 		   snr, new_threshold,
1602 		   lower_snr_threshold, upper_snr_threshold);
1603 
1604 	ret = ath6kl_wmi_send_snr_threshold_params(wmi, &cmd);
1605 	if (ret) {
1606 		ath6kl_err("unable to configure snr threshold\n");
1607 		return -EIO;
1608 	}
1609 
1610 	return 0;
1611 }
1612 
1613 static int ath6kl_wmi_aplist_event_rx(struct wmi *wmi, u8 *datap, int len)
1614 {
1615 	u16 ap_info_entry_size;
1616 	struct wmi_aplist_event *ev = (struct wmi_aplist_event *) datap;
1617 	struct wmi_ap_info_v1 *ap_info_v1;
1618 	u8 index;
1619 
1620 	if (len < sizeof(struct wmi_aplist_event) ||
1621 	    ev->ap_list_ver != APLIST_VER1)
1622 		return -EINVAL;
1623 
1624 	ap_info_entry_size = sizeof(struct wmi_ap_info_v1);
1625 	ap_info_v1 = (struct wmi_ap_info_v1 *) ev->ap_list;
1626 
1627 	ath6kl_dbg(ATH6KL_DBG_WMI,
1628 		   "number of APs in aplist event: %d\n", ev->num_ap);
1629 
1630 	if (len < (int) (sizeof(struct wmi_aplist_event) +
1631 			 (ev->num_ap - 1) * ap_info_entry_size))
1632 		return -EINVAL;
1633 
1634 	/* AP list version 1 contents */
1635 	for (index = 0; index < ev->num_ap; index++) {
1636 		ath6kl_dbg(ATH6KL_DBG_WMI, "AP#%d BSSID %pM Channel %d\n",
1637 			   index, ap_info_v1->bssid, ap_info_v1->channel);
1638 		ap_info_v1++;
1639 	}
1640 
1641 	return 0;
1642 }
1643 
1644 int ath6kl_wmi_cmd_send(struct wmi *wmi, u8 if_idx, struct sk_buff *skb,
1645 			enum wmi_cmd_id cmd_id, enum wmi_sync_flag sync_flag)
1646 {
1647 	struct wmi_cmd_hdr *cmd_hdr;
1648 	enum htc_endpoint_id ep_id = wmi->ep_id;
1649 	int ret;
1650 	u16 info1;
1651 
1652 	if (WARN_ON(skb == NULL || (if_idx > (wmi->parent_dev->vif_max - 1))))
1653 		return -EINVAL;
1654 
1655 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi tx id %d len %d flag %d\n",
1656 		   cmd_id, skb->len, sync_flag);
1657 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi tx ",
1658 			skb->data, skb->len);
1659 
1660 	if (sync_flag >= END_WMIFLAG) {
1661 		dev_kfree_skb(skb);
1662 		return -EINVAL;
1663 	}
1664 
1665 	if ((sync_flag == SYNC_BEFORE_WMIFLAG) ||
1666 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1667 		/*
1668 		 * Make sure all data currently queued is transmitted before
1669 		 * the cmd execution.  Establish a new sync point.
1670 		 */
1671 		ath6kl_wmi_sync_point(wmi, if_idx);
1672 	}
1673 
1674 	skb_push(skb, sizeof(struct wmi_cmd_hdr));
1675 
1676 	cmd_hdr = (struct wmi_cmd_hdr *) skb->data;
1677 	cmd_hdr->cmd_id = cpu_to_le16(cmd_id);
1678 	info1 = if_idx & WMI_CMD_HDR_IF_ID_MASK;
1679 	cmd_hdr->info1 = cpu_to_le16(info1);
1680 
1681 	/* Only for OPT_TX_CMD, use BE endpoint. */
1682 	if (cmd_id == WMI_OPT_TX_FRAME_CMDID) {
1683 		ret = ath6kl_wmi_data_hdr_add(wmi, skb, OPT_MSGTYPE,
1684 					      false, false, 0, NULL, if_idx);
1685 		if (ret) {
1686 			dev_kfree_skb(skb);
1687 			return ret;
1688 		}
1689 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev, WMM_AC_BE);
1690 	}
1691 
1692 	ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
1693 
1694 	if ((sync_flag == SYNC_AFTER_WMIFLAG) ||
1695 	    (sync_flag == SYNC_BOTH_WMIFLAG)) {
1696 		/*
1697 		 * Make sure all new data queued waits for the command to
1698 		 * execute. Establish a new sync point.
1699 		 */
1700 		ath6kl_wmi_sync_point(wmi, if_idx);
1701 	}
1702 
1703 	return 0;
1704 }
1705 
1706 int ath6kl_wmi_connect_cmd(struct wmi *wmi, u8 if_idx,
1707 			   enum network_type nw_type,
1708 			   enum dot11_auth_mode dot11_auth_mode,
1709 			   enum auth_mode auth_mode,
1710 			   enum crypto_type pairwise_crypto,
1711 			   u8 pairwise_crypto_len,
1712 			   enum crypto_type group_crypto,
1713 			   u8 group_crypto_len, int ssid_len, u8 *ssid,
1714 			   u8 *bssid, u16 channel, u32 ctrl_flags,
1715 			   u8 nw_subtype)
1716 {
1717 	struct sk_buff *skb;
1718 	struct wmi_connect_cmd *cc;
1719 	int ret;
1720 
1721 	ath6kl_dbg(ATH6KL_DBG_WMI,
1722 		   "wmi connect bssid %pM freq %d flags 0x%x ssid_len %d "
1723 		   "type %d dot11_auth %d auth %d pairwise %d group %d\n",
1724 		   bssid, channel, ctrl_flags, ssid_len, nw_type,
1725 		   dot11_auth_mode, auth_mode, pairwise_crypto, group_crypto);
1726 	ath6kl_dbg_dump(ATH6KL_DBG_WMI, NULL, "ssid ", ssid, ssid_len);
1727 
1728 	wmi->traffic_class = 100;
1729 
1730 	if ((pairwise_crypto == NONE_CRYPT) && (group_crypto != NONE_CRYPT))
1731 		return -EINVAL;
1732 
1733 	if ((pairwise_crypto != NONE_CRYPT) && (group_crypto == NONE_CRYPT))
1734 		return -EINVAL;
1735 
1736 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_connect_cmd));
1737 	if (!skb)
1738 		return -ENOMEM;
1739 
1740 	cc = (struct wmi_connect_cmd *) skb->data;
1741 
1742 	if (ssid_len)
1743 		memcpy(cc->ssid, ssid, ssid_len);
1744 
1745 	cc->ssid_len = ssid_len;
1746 	cc->nw_type = nw_type;
1747 	cc->dot11_auth_mode = dot11_auth_mode;
1748 	cc->auth_mode = auth_mode;
1749 	cc->prwise_crypto_type = pairwise_crypto;
1750 	cc->prwise_crypto_len = pairwise_crypto_len;
1751 	cc->grp_crypto_type = group_crypto;
1752 	cc->grp_crypto_len = group_crypto_len;
1753 	cc->ch = cpu_to_le16(channel);
1754 	cc->ctrl_flags = cpu_to_le32(ctrl_flags);
1755 	cc->nw_subtype = nw_subtype;
1756 
1757 	if (bssid != NULL)
1758 		memcpy(cc->bssid, bssid, ETH_ALEN);
1759 
1760 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CONNECT_CMDID,
1761 				  NO_SYNC_WMIFLAG);
1762 
1763 	return ret;
1764 }
1765 
1766 int ath6kl_wmi_reconnect_cmd(struct wmi *wmi, u8 if_idx, u8 *bssid,
1767 			     u16 channel)
1768 {
1769 	struct sk_buff *skb;
1770 	struct wmi_reconnect_cmd *cc;
1771 	int ret;
1772 
1773 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi reconnect bssid %pM freq %d\n",
1774 		   bssid, channel);
1775 
1776 	wmi->traffic_class = 100;
1777 
1778 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_reconnect_cmd));
1779 	if (!skb)
1780 		return -ENOMEM;
1781 
1782 	cc = (struct wmi_reconnect_cmd *) skb->data;
1783 	cc->channel = cpu_to_le16(channel);
1784 
1785 	if (bssid != NULL)
1786 		memcpy(cc->bssid, bssid, ETH_ALEN);
1787 
1788 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RECONNECT_CMDID,
1789 				  NO_SYNC_WMIFLAG);
1790 
1791 	return ret;
1792 }
1793 
1794 int ath6kl_wmi_disconnect_cmd(struct wmi *wmi, u8 if_idx)
1795 {
1796 	int ret;
1797 
1798 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi disconnect\n");
1799 
1800 	wmi->traffic_class = 100;
1801 
1802 	/* Disconnect command does not need to do a SYNC before. */
1803 	ret = ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_DISCONNECT_CMDID);
1804 
1805 	return ret;
1806 }
1807 
1808 int ath6kl_wmi_beginscan_cmd(struct wmi *wmi, u8 if_idx,
1809 			     enum wmi_scan_type scan_type,
1810 			     u32 force_fgscan, u32 is_legacy,
1811 			     u32 home_dwell_time, u32 force_scan_interval,
1812 			     s8 num_chan, u16 *ch_list, u32 no_cck, u32 *rates)
1813 {
1814 	struct sk_buff *skb;
1815 	struct wmi_begin_scan_cmd *sc;
1816 	s8 size;
1817 	int i, band, ret;
1818 	struct ath6kl *ar = wmi->parent_dev;
1819 	int num_rates;
1820 
1821 	size = sizeof(struct wmi_begin_scan_cmd);
1822 
1823 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
1824 		return -EINVAL;
1825 
1826 	if (num_chan > WMI_MAX_CHANNELS)
1827 		return -EINVAL;
1828 
1829 	if (num_chan)
1830 		size += sizeof(u16) * (num_chan - 1);
1831 
1832 	skb = ath6kl_wmi_get_new_buf(size);
1833 	if (!skb)
1834 		return -ENOMEM;
1835 
1836 	sc = (struct wmi_begin_scan_cmd *) skb->data;
1837 	sc->scan_type = scan_type;
1838 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
1839 	sc->is_legacy = cpu_to_le32(is_legacy);
1840 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
1841 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
1842 	sc->no_cck = cpu_to_le32(no_cck);
1843 	sc->num_ch = num_chan;
1844 
1845 	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1846 		struct ieee80211_supported_band *sband =
1847 		    ar->wiphy->bands[band];
1848 		u32 ratemask = rates[band];
1849 		u8 *supp_rates = sc->supp_rates[band].rates;
1850 		num_rates = 0;
1851 
1852 		for (i = 0; i < sband->n_bitrates; i++) {
1853 			if ((BIT(i) & ratemask) == 0)
1854 				continue; /* skip rate */
1855 			supp_rates[num_rates++] =
1856 			    (u8) (sband->bitrates[i].bitrate / 5);
1857 		}
1858 		sc->supp_rates[band].nrates = num_rates;
1859 	}
1860 
1861 	for (i = 0; i < num_chan; i++)
1862 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
1863 
1864 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_BEGIN_SCAN_CMDID,
1865 				  NO_SYNC_WMIFLAG);
1866 
1867 	return ret;
1868 }
1869 
1870 /* ath6kl_wmi_start_scan_cmd is to be deprecated. Use
1871  * ath6kl_wmi_begin_scan_cmd instead. The new function supports P2P
1872  * mgmt operations using station interface.
1873  */
1874 int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx,
1875 			     enum wmi_scan_type scan_type,
1876 			     u32 force_fgscan, u32 is_legacy,
1877 			     u32 home_dwell_time, u32 force_scan_interval,
1878 			     s8 num_chan, u16 *ch_list)
1879 {
1880 	struct sk_buff *skb;
1881 	struct wmi_start_scan_cmd *sc;
1882 	s8 size;
1883 	int i, ret;
1884 
1885 	size = sizeof(struct wmi_start_scan_cmd);
1886 
1887 	if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN))
1888 		return -EINVAL;
1889 
1890 	if (num_chan > WMI_MAX_CHANNELS)
1891 		return -EINVAL;
1892 
1893 	if (num_chan)
1894 		size += sizeof(u16) * (num_chan - 1);
1895 
1896 	skb = ath6kl_wmi_get_new_buf(size);
1897 	if (!skb)
1898 		return -ENOMEM;
1899 
1900 	sc = (struct wmi_start_scan_cmd *) skb->data;
1901 	sc->scan_type = scan_type;
1902 	sc->force_fg_scan = cpu_to_le32(force_fgscan);
1903 	sc->is_legacy = cpu_to_le32(is_legacy);
1904 	sc->home_dwell_time = cpu_to_le32(home_dwell_time);
1905 	sc->force_scan_intvl = cpu_to_le32(force_scan_interval);
1906 	sc->num_ch = num_chan;
1907 
1908 	for (i = 0; i < num_chan; i++)
1909 		sc->ch_list[i] = cpu_to_le16(ch_list[i]);
1910 
1911 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_START_SCAN_CMDID,
1912 				  NO_SYNC_WMIFLAG);
1913 
1914 	return ret;
1915 }
1916 
1917 int ath6kl_wmi_scanparams_cmd(struct wmi *wmi, u8 if_idx,
1918 			      u16 fg_start_sec,
1919 			      u16 fg_end_sec, u16 bg_sec,
1920 			      u16 minact_chdw_msec, u16 maxact_chdw_msec,
1921 			      u16 pas_chdw_msec, u8 short_scan_ratio,
1922 			      u8 scan_ctrl_flag, u32 max_dfsch_act_time,
1923 			      u16 maxact_scan_per_ssid)
1924 {
1925 	struct sk_buff *skb;
1926 	struct wmi_scan_params_cmd *sc;
1927 	int ret;
1928 
1929 	skb = ath6kl_wmi_get_new_buf(sizeof(*sc));
1930 	if (!skb)
1931 		return -ENOMEM;
1932 
1933 	sc = (struct wmi_scan_params_cmd *) skb->data;
1934 	sc->fg_start_period = cpu_to_le16(fg_start_sec);
1935 	sc->fg_end_period = cpu_to_le16(fg_end_sec);
1936 	sc->bg_period = cpu_to_le16(bg_sec);
1937 	sc->minact_chdwell_time = cpu_to_le16(minact_chdw_msec);
1938 	sc->maxact_chdwell_time = cpu_to_le16(maxact_chdw_msec);
1939 	sc->pas_chdwell_time = cpu_to_le16(pas_chdw_msec);
1940 	sc->short_scan_ratio = short_scan_ratio;
1941 	sc->scan_ctrl_flags = scan_ctrl_flag;
1942 	sc->max_dfsch_act_time = cpu_to_le32(max_dfsch_act_time);
1943 	sc->maxact_scan_per_ssid = cpu_to_le16(maxact_scan_per_ssid);
1944 
1945 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_SCAN_PARAMS_CMDID,
1946 				  NO_SYNC_WMIFLAG);
1947 	return ret;
1948 }
1949 
1950 int ath6kl_wmi_bssfilter_cmd(struct wmi *wmi, u8 if_idx, u8 filter, u32 ie_mask)
1951 {
1952 	struct sk_buff *skb;
1953 	struct wmi_bss_filter_cmd *cmd;
1954 	int ret;
1955 
1956 	if (filter >= LAST_BSS_FILTER)
1957 		return -EINVAL;
1958 
1959 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1960 	if (!skb)
1961 		return -ENOMEM;
1962 
1963 	cmd = (struct wmi_bss_filter_cmd *) skb->data;
1964 	cmd->bss_filter = filter;
1965 	cmd->ie_mask = cpu_to_le32(ie_mask);
1966 
1967 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BSS_FILTER_CMDID,
1968 				  NO_SYNC_WMIFLAG);
1969 	return ret;
1970 }
1971 
1972 int ath6kl_wmi_probedssid_cmd(struct wmi *wmi, u8 if_idx, u8 index, u8 flag,
1973 			      u8 ssid_len, u8 *ssid)
1974 {
1975 	struct sk_buff *skb;
1976 	struct wmi_probed_ssid_cmd *cmd;
1977 	int ret;
1978 
1979 	if (index > MAX_PROBED_SSID_INDEX)
1980 		return -EINVAL;
1981 
1982 	if (ssid_len > sizeof(cmd->ssid))
1983 		return -EINVAL;
1984 
1985 	if ((flag & (DISABLE_SSID_FLAG | ANY_SSID_FLAG)) && (ssid_len > 0))
1986 		return -EINVAL;
1987 
1988 	if ((flag & SPECIFIC_SSID_FLAG) && !ssid_len)
1989 		return -EINVAL;
1990 
1991 	if (flag & SPECIFIC_SSID_FLAG)
1992 		wmi->is_probe_ssid = true;
1993 
1994 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
1995 	if (!skb)
1996 		return -ENOMEM;
1997 
1998 	cmd = (struct wmi_probed_ssid_cmd *) skb->data;
1999 	cmd->entry_index = index;
2000 	cmd->flag = flag;
2001 	cmd->ssid_len = ssid_len;
2002 	memcpy(cmd->ssid, ssid, ssid_len);
2003 
2004 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PROBED_SSID_CMDID,
2005 				  NO_SYNC_WMIFLAG);
2006 	return ret;
2007 }
2008 
2009 int ath6kl_wmi_listeninterval_cmd(struct wmi *wmi, u8 if_idx,
2010 				  u16 listen_interval,
2011 				  u16 listen_beacons)
2012 {
2013 	struct sk_buff *skb;
2014 	struct wmi_listen_int_cmd *cmd;
2015 	int ret;
2016 
2017 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2018 	if (!skb)
2019 		return -ENOMEM;
2020 
2021 	cmd = (struct wmi_listen_int_cmd *) skb->data;
2022 	cmd->listen_intvl = cpu_to_le16(listen_interval);
2023 	cmd->num_beacons = cpu_to_le16(listen_beacons);
2024 
2025 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LISTEN_INT_CMDID,
2026 				  NO_SYNC_WMIFLAG);
2027 	return ret;
2028 }
2029 
2030 int ath6kl_wmi_bmisstime_cmd(struct wmi *wmi, u8 if_idx,
2031 			     u16 bmiss_time, u16 num_beacons)
2032 {
2033 	struct sk_buff *skb;
2034 	struct wmi_bmiss_time_cmd *cmd;
2035 	int ret;
2036 
2037 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2038 	if (!skb)
2039 		return -ENOMEM;
2040 
2041 	cmd = (struct wmi_bmiss_time_cmd *) skb->data;
2042 	cmd->bmiss_time = cpu_to_le16(bmiss_time);
2043 	cmd->num_beacons = cpu_to_le16(num_beacons);
2044 
2045 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_BMISS_TIME_CMDID,
2046 				  NO_SYNC_WMIFLAG);
2047 	return ret;
2048 }
2049 
2050 int ath6kl_wmi_powermode_cmd(struct wmi *wmi, u8 if_idx, u8 pwr_mode)
2051 {
2052 	struct sk_buff *skb;
2053 	struct wmi_power_mode_cmd *cmd;
2054 	int ret;
2055 
2056 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2057 	if (!skb)
2058 		return -ENOMEM;
2059 
2060 	cmd = (struct wmi_power_mode_cmd *) skb->data;
2061 	cmd->pwr_mode = pwr_mode;
2062 	wmi->pwr_mode = pwr_mode;
2063 
2064 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_MODE_CMDID,
2065 				  NO_SYNC_WMIFLAG);
2066 	return ret;
2067 }
2068 
2069 int ath6kl_wmi_pmparams_cmd(struct wmi *wmi, u8 if_idx, u16 idle_period,
2070 			    u16 ps_poll_num, u16 dtim_policy,
2071 			    u16 tx_wakeup_policy, u16 num_tx_to_wakeup,
2072 			    u16 ps_fail_event_policy)
2073 {
2074 	struct sk_buff *skb;
2075 	struct wmi_power_params_cmd *pm;
2076 	int ret;
2077 
2078 	skb = ath6kl_wmi_get_new_buf(sizeof(*pm));
2079 	if (!skb)
2080 		return -ENOMEM;
2081 
2082 	pm = (struct wmi_power_params_cmd *)skb->data;
2083 	pm->idle_period = cpu_to_le16(idle_period);
2084 	pm->pspoll_number = cpu_to_le16(ps_poll_num);
2085 	pm->dtim_policy = cpu_to_le16(dtim_policy);
2086 	pm->tx_wakeup_policy = cpu_to_le16(tx_wakeup_policy);
2087 	pm->num_tx_to_wakeup = cpu_to_le16(num_tx_to_wakeup);
2088 	pm->ps_fail_event_policy = cpu_to_le16(ps_fail_event_policy);
2089 
2090 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_POWER_PARAMS_CMDID,
2091 				  NO_SYNC_WMIFLAG);
2092 	return ret;
2093 }
2094 
2095 int ath6kl_wmi_disctimeout_cmd(struct wmi *wmi, u8 if_idx, u8 timeout)
2096 {
2097 	struct sk_buff *skb;
2098 	struct wmi_disc_timeout_cmd *cmd;
2099 	int ret;
2100 
2101 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2102 	if (!skb)
2103 		return -ENOMEM;
2104 
2105 	cmd = (struct wmi_disc_timeout_cmd *) skb->data;
2106 	cmd->discon_timeout = timeout;
2107 
2108 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_DISC_TIMEOUT_CMDID,
2109 				  NO_SYNC_WMIFLAG);
2110 
2111 	if (ret == 0)
2112 		ath6kl_debug_set_disconnect_timeout(wmi->parent_dev, timeout);
2113 
2114 	return ret;
2115 }
2116 
2117 int ath6kl_wmi_addkey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index,
2118 			  enum crypto_type key_type,
2119 			  u8 key_usage, u8 key_len,
2120 			  u8 *key_rsc, unsigned int key_rsc_len,
2121 			  u8 *key_material,
2122 			  u8 key_op_ctrl, u8 *mac_addr,
2123 			  enum wmi_sync_flag sync_flag)
2124 {
2125 	struct sk_buff *skb;
2126 	struct wmi_add_cipher_key_cmd *cmd;
2127 	int ret;
2128 
2129 	ath6kl_dbg(ATH6KL_DBG_WMI, "addkey cmd: key_index=%u key_type=%d "
2130 		   "key_usage=%d key_len=%d key_op_ctrl=%d\n",
2131 		   key_index, key_type, key_usage, key_len, key_op_ctrl);
2132 
2133 	if ((key_index > WMI_MAX_KEY_INDEX) || (key_len > WMI_MAX_KEY_LEN) ||
2134 	    (key_material == NULL) || key_rsc_len > 8)
2135 		return -EINVAL;
2136 
2137 	if ((WEP_CRYPT != key_type) && (NULL == key_rsc))
2138 		return -EINVAL;
2139 
2140 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2141 	if (!skb)
2142 		return -ENOMEM;
2143 
2144 	cmd = (struct wmi_add_cipher_key_cmd *) skb->data;
2145 	cmd->key_index = key_index;
2146 	cmd->key_type = key_type;
2147 	cmd->key_usage = key_usage;
2148 	cmd->key_len = key_len;
2149 	memcpy(cmd->key, key_material, key_len);
2150 
2151 	if (key_rsc != NULL)
2152 		memcpy(cmd->key_rsc, key_rsc, key_rsc_len);
2153 
2154 	cmd->key_op_ctrl = key_op_ctrl;
2155 
2156 	if (mac_addr)
2157 		memcpy(cmd->key_mac_addr, mac_addr, ETH_ALEN);
2158 
2159 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_CIPHER_KEY_CMDID,
2160 				  sync_flag);
2161 
2162 	return ret;
2163 }
2164 
2165 int ath6kl_wmi_add_krk_cmd(struct wmi *wmi, u8 if_idx, u8 *krk)
2166 {
2167 	struct sk_buff *skb;
2168 	struct wmi_add_krk_cmd *cmd;
2169 	int ret;
2170 
2171 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2172 	if (!skb)
2173 		return -ENOMEM;
2174 
2175 	cmd = (struct wmi_add_krk_cmd *) skb->data;
2176 	memcpy(cmd->krk, krk, WMI_KRK_LEN);
2177 
2178 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_KRK_CMDID,
2179 				  NO_SYNC_WMIFLAG);
2180 
2181 	return ret;
2182 }
2183 
2184 int ath6kl_wmi_deletekey_cmd(struct wmi *wmi, u8 if_idx, u8 key_index)
2185 {
2186 	struct sk_buff *skb;
2187 	struct wmi_delete_cipher_key_cmd *cmd;
2188 	int ret;
2189 
2190 	if (key_index > WMI_MAX_KEY_INDEX)
2191 		return -EINVAL;
2192 
2193 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2194 	if (!skb)
2195 		return -ENOMEM;
2196 
2197 	cmd = (struct wmi_delete_cipher_key_cmd *) skb->data;
2198 	cmd->key_index = key_index;
2199 
2200 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_CIPHER_KEY_CMDID,
2201 				  NO_SYNC_WMIFLAG);
2202 
2203 	return ret;
2204 }
2205 
2206 int ath6kl_wmi_setpmkid_cmd(struct wmi *wmi, u8 if_idx, const u8 *bssid,
2207 			    const u8 *pmkid, bool set)
2208 {
2209 	struct sk_buff *skb;
2210 	struct wmi_setpmkid_cmd *cmd;
2211 	int ret;
2212 
2213 	if (bssid == NULL)
2214 		return -EINVAL;
2215 
2216 	if (set && pmkid == NULL)
2217 		return -EINVAL;
2218 
2219 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2220 	if (!skb)
2221 		return -ENOMEM;
2222 
2223 	cmd = (struct wmi_setpmkid_cmd *) skb->data;
2224 	memcpy(cmd->bssid, bssid, ETH_ALEN);
2225 	if (set) {
2226 		memcpy(cmd->pmkid, pmkid, sizeof(cmd->pmkid));
2227 		cmd->enable = PMKID_ENABLE;
2228 	} else {
2229 		memset(cmd->pmkid, 0, sizeof(cmd->pmkid));
2230 		cmd->enable = PMKID_DISABLE;
2231 	}
2232 
2233 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_PMKID_CMDID,
2234 				  NO_SYNC_WMIFLAG);
2235 
2236 	return ret;
2237 }
2238 
2239 static int ath6kl_wmi_data_sync_send(struct wmi *wmi, struct sk_buff *skb,
2240 			      enum htc_endpoint_id ep_id, u8 if_idx)
2241 {
2242 	struct wmi_data_hdr *data_hdr;
2243 	int ret;
2244 
2245 	if (WARN_ON(skb == NULL || ep_id == wmi->ep_id))
2246 		return -EINVAL;
2247 
2248 	skb_push(skb, sizeof(struct wmi_data_hdr));
2249 
2250 	data_hdr = (struct wmi_data_hdr *) skb->data;
2251 	data_hdr->info = SYNC_MSGTYPE << WMI_DATA_HDR_MSG_TYPE_SHIFT;
2252 	data_hdr->info3 = cpu_to_le16(if_idx & WMI_DATA_HDR_IF_IDX_MASK);
2253 
2254 	ret = ath6kl_control_tx(wmi->parent_dev, skb, ep_id);
2255 
2256 	return ret;
2257 }
2258 
2259 static int ath6kl_wmi_sync_point(struct wmi *wmi, u8 if_idx)
2260 {
2261 	struct sk_buff *skb;
2262 	struct wmi_sync_cmd *cmd;
2263 	struct wmi_data_sync_bufs data_sync_bufs[WMM_NUM_AC];
2264 	enum htc_endpoint_id ep_id;
2265 	u8 index, num_pri_streams = 0;
2266 	int ret = 0;
2267 
2268 	memset(data_sync_bufs, 0, sizeof(data_sync_bufs));
2269 
2270 	spin_lock_bh(&wmi->lock);
2271 
2272 	for (index = 0; index < WMM_NUM_AC; index++) {
2273 		if (wmi->fat_pipe_exist & (1 << index)) {
2274 			num_pri_streams++;
2275 			data_sync_bufs[num_pri_streams - 1].traffic_class =
2276 			    index;
2277 		}
2278 	}
2279 
2280 	spin_unlock_bh(&wmi->lock);
2281 
2282 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2283 	if (!skb) {
2284 		ret = -ENOMEM;
2285 		goto free_skb;
2286 	}
2287 
2288 	cmd = (struct wmi_sync_cmd *) skb->data;
2289 
2290 	/*
2291 	 * In the SYNC cmd sent on the control Ep, send a bitmap
2292 	 * of the data eps on which the Data Sync will be sent
2293 	 */
2294 	cmd->data_sync_map = wmi->fat_pipe_exist;
2295 
2296 	for (index = 0; index < num_pri_streams; index++) {
2297 		data_sync_bufs[index].skb = ath6kl_buf_alloc(0);
2298 		if (data_sync_bufs[index].skb == NULL) {
2299 			ret = -ENOMEM;
2300 			break;
2301 		}
2302 	}
2303 
2304 	/*
2305 	 * If buffer allocation for any of the dataSync fails,
2306 	 * then do not send the Synchronize cmd on the control ep
2307 	 */
2308 	if (ret)
2309 		goto free_skb;
2310 
2311 	/*
2312 	 * Send sync cmd followed by sync data messages on all
2313 	 * endpoints being used
2314 	 */
2315 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SYNCHRONIZE_CMDID,
2316 				  NO_SYNC_WMIFLAG);
2317 
2318 	if (ret)
2319 		goto free_skb;
2320 
2321 	/* cmd buffer sent, we no longer own it */
2322 	skb = NULL;
2323 
2324 	for (index = 0; index < num_pri_streams; index++) {
2325 
2326 		if (WARN_ON(!data_sync_bufs[index].skb))
2327 			break;
2328 
2329 		ep_id = ath6kl_ac2_endpoint_id(wmi->parent_dev,
2330 					       data_sync_bufs[index].
2331 					       traffic_class);
2332 		ret =
2333 		    ath6kl_wmi_data_sync_send(wmi, data_sync_bufs[index].skb,
2334 					      ep_id, if_idx);
2335 
2336 		if (ret)
2337 			break;
2338 
2339 		data_sync_bufs[index].skb = NULL;
2340 	}
2341 
2342 free_skb:
2343 	/* free up any resources left over (possibly due to an error) */
2344 	if (skb)
2345 		dev_kfree_skb(skb);
2346 
2347 	for (index = 0; index < num_pri_streams; index++) {
2348 		if (data_sync_bufs[index].skb != NULL) {
2349 			dev_kfree_skb((struct sk_buff *)data_sync_bufs[index].
2350 				      skb);
2351 		}
2352 	}
2353 
2354 	return ret;
2355 }
2356 
2357 int ath6kl_wmi_create_pstream_cmd(struct wmi *wmi, u8 if_idx,
2358 				  struct wmi_create_pstream_cmd *params)
2359 {
2360 	struct sk_buff *skb;
2361 	struct wmi_create_pstream_cmd *cmd;
2362 	u8 fatpipe_exist_for_ac = 0;
2363 	s32 min_phy = 0;
2364 	s32 nominal_phy = 0;
2365 	int ret;
2366 
2367 	if (!((params->user_pri < 8) &&
2368 	      (params->user_pri <= 0x7) &&
2369 	      (up_to_ac[params->user_pri & 0x7] == params->traffic_class) &&
2370 	      (params->traffic_direc == UPLINK_TRAFFIC ||
2371 	       params->traffic_direc == DNLINK_TRAFFIC ||
2372 	       params->traffic_direc == BIDIR_TRAFFIC) &&
2373 	      (params->traffic_type == TRAFFIC_TYPE_APERIODIC ||
2374 	       params->traffic_type == TRAFFIC_TYPE_PERIODIC) &&
2375 	      (params->voice_psc_cap == DISABLE_FOR_THIS_AC ||
2376 	       params->voice_psc_cap == ENABLE_FOR_THIS_AC ||
2377 	       params->voice_psc_cap == ENABLE_FOR_ALL_AC) &&
2378 	      (params->tsid == WMI_IMPLICIT_PSTREAM ||
2379 	       params->tsid <= WMI_MAX_THINSTREAM))) {
2380 		return -EINVAL;
2381 	}
2382 
2383 	/*
2384 	 * Check nominal PHY rate is >= minimalPHY,
2385 	 * so that DUT can allow TSRS IE
2386 	 */
2387 
2388 	/* Get the physical rate (units of bps) */
2389 	min_phy = ((le32_to_cpu(params->min_phy_rate) / 1000) / 1000);
2390 
2391 	/* Check minimal phy < nominal phy rate */
2392 	if (params->nominal_phy >= min_phy) {
2393 		/* unit of 500 kbps */
2394 		nominal_phy = (params->nominal_phy * 1000) / 500;
2395 		ath6kl_dbg(ATH6KL_DBG_WMI,
2396 			   "TSRS IE enabled::MinPhy %x->NominalPhy ===> %x\n",
2397 			   min_phy, nominal_phy);
2398 
2399 		params->nominal_phy = nominal_phy;
2400 	} else {
2401 		params->nominal_phy = 0;
2402 	}
2403 
2404 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2405 	if (!skb)
2406 		return -ENOMEM;
2407 
2408 	ath6kl_dbg(ATH6KL_DBG_WMI,
2409 		   "sending create_pstream_cmd: ac=%d  tsid:%d\n",
2410 		   params->traffic_class, params->tsid);
2411 
2412 	cmd = (struct wmi_create_pstream_cmd *) skb->data;
2413 	memcpy(cmd, params, sizeof(*cmd));
2414 
2415 	/* This is an implicitly created Fat pipe */
2416 	if ((u32) params->tsid == (u32) WMI_IMPLICIT_PSTREAM) {
2417 		spin_lock_bh(&wmi->lock);
2418 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2419 					(1 << params->traffic_class));
2420 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2421 		spin_unlock_bh(&wmi->lock);
2422 	} else {
2423 		/* explicitly created thin stream within a fat pipe */
2424 		spin_lock_bh(&wmi->lock);
2425 		fatpipe_exist_for_ac = (wmi->fat_pipe_exist &
2426 					(1 << params->traffic_class));
2427 		wmi->stream_exist_for_ac[params->traffic_class] |=
2428 		    (1 << params->tsid);
2429 		/*
2430 		 * If a thinstream becomes active, the fat pipe automatically
2431 		 * becomes active
2432 		 */
2433 		wmi->fat_pipe_exist |= (1 << params->traffic_class);
2434 		spin_unlock_bh(&wmi->lock);
2435 	}
2436 
2437 	/*
2438 	 * Indicate activty change to driver layer only if this is the
2439 	 * first TSID to get created in this AC explicitly or an implicit
2440 	 * fat pipe is getting created.
2441 	 */
2442 	if (!fatpipe_exist_for_ac)
2443 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2444 					    params->traffic_class, true);
2445 
2446 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_CREATE_PSTREAM_CMDID,
2447 				  NO_SYNC_WMIFLAG);
2448 	return ret;
2449 }
2450 
2451 int ath6kl_wmi_delete_pstream_cmd(struct wmi *wmi, u8 if_idx, u8 traffic_class,
2452 				  u8 tsid)
2453 {
2454 	struct sk_buff *skb;
2455 	struct wmi_delete_pstream_cmd *cmd;
2456 	u16 active_tsids = 0;
2457 	int ret;
2458 
2459 	if (traffic_class > 3) {
2460 		ath6kl_err("invalid traffic class: %d\n", traffic_class);
2461 		return -EINVAL;
2462 	}
2463 
2464 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2465 	if (!skb)
2466 		return -ENOMEM;
2467 
2468 	cmd = (struct wmi_delete_pstream_cmd *) skb->data;
2469 	cmd->traffic_class = traffic_class;
2470 	cmd->tsid = tsid;
2471 
2472 	spin_lock_bh(&wmi->lock);
2473 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2474 	spin_unlock_bh(&wmi->lock);
2475 
2476 	if (!(active_tsids & (1 << tsid))) {
2477 		dev_kfree_skb(skb);
2478 		ath6kl_dbg(ATH6KL_DBG_WMI,
2479 			   "TSID %d doesn't exist for traffic class: %d\n",
2480 			   tsid, traffic_class);
2481 		return -ENODATA;
2482 	}
2483 
2484 	ath6kl_dbg(ATH6KL_DBG_WMI,
2485 		   "sending delete_pstream_cmd: traffic class: %d tsid=%d\n",
2486 		   traffic_class, tsid);
2487 
2488 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DELETE_PSTREAM_CMDID,
2489 				  SYNC_BEFORE_WMIFLAG);
2490 
2491 	spin_lock_bh(&wmi->lock);
2492 	wmi->stream_exist_for_ac[traffic_class] &= ~(1 << tsid);
2493 	active_tsids = wmi->stream_exist_for_ac[traffic_class];
2494 	spin_unlock_bh(&wmi->lock);
2495 
2496 	/*
2497 	 * Indicate stream inactivity to driver layer only if all tsids
2498 	 * within this AC are deleted.
2499 	 */
2500 	if (!active_tsids) {
2501 		ath6kl_indicate_tx_activity(wmi->parent_dev,
2502 					    traffic_class, false);
2503 		wmi->fat_pipe_exist &= ~(1 << traffic_class);
2504 	}
2505 
2506 	return ret;
2507 }
2508 
2509 int ath6kl_wmi_set_ip_cmd(struct wmi *wmi, u8 if_idx,
2510 			  __be32 ips0, __be32 ips1)
2511 {
2512 	struct sk_buff *skb;
2513 	struct wmi_set_ip_cmd *cmd;
2514 	int ret;
2515 
2516 	/* Multicast address are not valid */
2517 	if (ipv4_is_multicast(ips0) ||
2518 	    ipv4_is_multicast(ips1))
2519 		return -EINVAL;
2520 
2521 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_ip_cmd));
2522 	if (!skb)
2523 		return -ENOMEM;
2524 
2525 	cmd = (struct wmi_set_ip_cmd *) skb->data;
2526 	cmd->ips[0] = ips0;
2527 	cmd->ips[1] = ips1;
2528 
2529 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_IP_CMDID,
2530 				  NO_SYNC_WMIFLAG);
2531 	return ret;
2532 }
2533 
2534 static void ath6kl_wmi_relinquish_implicit_pstream_credits(struct wmi *wmi)
2535 {
2536 	u16 active_tsids;
2537 	u8 stream_exist;
2538 	int i;
2539 
2540 	/*
2541 	 * Relinquish credits from all implicitly created pstreams
2542 	 * since when we go to sleep. If user created explicit
2543 	 * thinstreams exists with in a fatpipe leave them intact
2544 	 * for the user to delete.
2545 	 */
2546 	spin_lock_bh(&wmi->lock);
2547 	stream_exist = wmi->fat_pipe_exist;
2548 	spin_unlock_bh(&wmi->lock);
2549 
2550 	for (i = 0; i < WMM_NUM_AC; i++) {
2551 		if (stream_exist & (1 << i)) {
2552 
2553 			/*
2554 			 * FIXME: Is this lock & unlock inside
2555 			 * for loop correct? may need rework.
2556 			 */
2557 			spin_lock_bh(&wmi->lock);
2558 			active_tsids = wmi->stream_exist_for_ac[i];
2559 			spin_unlock_bh(&wmi->lock);
2560 
2561 			/*
2562 			 * If there are no user created thin streams
2563 			 * delete the fatpipe
2564 			 */
2565 			if (!active_tsids) {
2566 				stream_exist &= ~(1 << i);
2567 				/*
2568 				 * Indicate inactivity to driver layer for
2569 				 * this fatpipe (pstream)
2570 				 */
2571 				ath6kl_indicate_tx_activity(wmi->parent_dev,
2572 							    i, false);
2573 			}
2574 		}
2575 	}
2576 
2577 	/* FIXME: Can we do this assignment without locking ? */
2578 	spin_lock_bh(&wmi->lock);
2579 	wmi->fat_pipe_exist = stream_exist;
2580 	spin_unlock_bh(&wmi->lock);
2581 }
2582 
2583 int ath6kl_wmi_set_host_sleep_mode_cmd(struct wmi *wmi, u8 if_idx,
2584 				       enum ath6kl_host_mode host_mode)
2585 {
2586 	struct sk_buff *skb;
2587 	struct wmi_set_host_sleep_mode_cmd *cmd;
2588 	int ret;
2589 
2590 	if ((host_mode != ATH6KL_HOST_MODE_ASLEEP) &&
2591 	    (host_mode != ATH6KL_HOST_MODE_AWAKE)) {
2592 		ath6kl_err("invalid host sleep mode: %d\n", host_mode);
2593 		return -EINVAL;
2594 	}
2595 
2596 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2597 	if (!skb)
2598 		return -ENOMEM;
2599 
2600 	cmd = (struct wmi_set_host_sleep_mode_cmd *) skb->data;
2601 
2602 	if (host_mode == ATH6KL_HOST_MODE_ASLEEP) {
2603 		ath6kl_wmi_relinquish_implicit_pstream_credits(wmi);
2604 		cmd->asleep = cpu_to_le32(1);
2605 	} else
2606 		cmd->awake = cpu_to_le32(1);
2607 
2608 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2609 				  WMI_SET_HOST_SLEEP_MODE_CMDID,
2610 				  NO_SYNC_WMIFLAG);
2611 	return ret;
2612 }
2613 
2614 /* This command has zero length payload */
2615 static int ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(struct wmi *wmi,
2616 						      struct ath6kl_vif *vif)
2617 {
2618 	struct ath6kl *ar = wmi->parent_dev;
2619 
2620 	set_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags);
2621 	wake_up(&ar->event_wq);
2622 
2623 	return 0;
2624 }
2625 
2626 int ath6kl_wmi_set_wow_mode_cmd(struct wmi *wmi, u8 if_idx,
2627 				enum ath6kl_wow_mode wow_mode,
2628 				u32 filter, u16 host_req_delay)
2629 {
2630 	struct sk_buff *skb;
2631 	struct wmi_set_wow_mode_cmd *cmd;
2632 	int ret;
2633 
2634 	if ((wow_mode != ATH6KL_WOW_MODE_ENABLE) &&
2635 	     wow_mode != ATH6KL_WOW_MODE_DISABLE) {
2636 		ath6kl_err("invalid wow mode: %d\n", wow_mode);
2637 		return -EINVAL;
2638 	}
2639 
2640 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2641 	if (!skb)
2642 		return -ENOMEM;
2643 
2644 	cmd = (struct wmi_set_wow_mode_cmd *) skb->data;
2645 	cmd->enable_wow = cpu_to_le32(wow_mode);
2646 	cmd->filter = cpu_to_le32(filter);
2647 	cmd->host_req_delay = cpu_to_le16(host_req_delay);
2648 
2649 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WOW_MODE_CMDID,
2650 				  NO_SYNC_WMIFLAG);
2651 	return ret;
2652 }
2653 
2654 int ath6kl_wmi_add_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2655 				   u8 list_id, u8 filter_size,
2656 				   u8 filter_offset, const u8 *filter,
2657 				   const u8 *mask)
2658 {
2659 	struct sk_buff *skb;
2660 	struct wmi_add_wow_pattern_cmd *cmd;
2661 	u16 size;
2662 	u8 *filter_mask;
2663 	int ret;
2664 
2665 	/*
2666 	 * Allocate additional memory in the buffer to hold
2667 	 * filter and mask value, which is twice of filter_size.
2668 	 */
2669 	size = sizeof(*cmd) + (2 * filter_size);
2670 
2671 	skb = ath6kl_wmi_get_new_buf(size);
2672 	if (!skb)
2673 		return -ENOMEM;
2674 
2675 	cmd = (struct wmi_add_wow_pattern_cmd *) skb->data;
2676 	cmd->filter_list_id = list_id;
2677 	cmd->filter_size = filter_size;
2678 	cmd->filter_offset = filter_offset;
2679 
2680 	memcpy(cmd->filter, filter, filter_size);
2681 
2682 	filter_mask = (u8 *) (cmd->filter + filter_size);
2683 	memcpy(filter_mask, mask, filter_size);
2684 
2685 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_ADD_WOW_PATTERN_CMDID,
2686 				  NO_SYNC_WMIFLAG);
2687 
2688 	return ret;
2689 }
2690 
2691 int ath6kl_wmi_del_wow_pattern_cmd(struct wmi *wmi, u8 if_idx,
2692 				   u16 list_id, u16 filter_id)
2693 {
2694 	struct sk_buff *skb;
2695 	struct wmi_del_wow_pattern_cmd *cmd;
2696 	int ret;
2697 
2698 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2699 	if (!skb)
2700 		return -ENOMEM;
2701 
2702 	cmd = (struct wmi_del_wow_pattern_cmd *) skb->data;
2703 	cmd->filter_list_id = cpu_to_le16(list_id);
2704 	cmd->filter_id = cpu_to_le16(filter_id);
2705 
2706 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_DEL_WOW_PATTERN_CMDID,
2707 				  NO_SYNC_WMIFLAG);
2708 	return ret;
2709 }
2710 
2711 static int ath6kl_wmi_cmd_send_xtnd(struct wmi *wmi, struct sk_buff *skb,
2712 				    enum wmix_command_id cmd_id,
2713 				    enum wmi_sync_flag sync_flag)
2714 {
2715 	struct wmix_cmd_hdr *cmd_hdr;
2716 	int ret;
2717 
2718 	skb_push(skb, sizeof(struct wmix_cmd_hdr));
2719 
2720 	cmd_hdr = (struct wmix_cmd_hdr *) skb->data;
2721 	cmd_hdr->cmd_id = cpu_to_le32(cmd_id);
2722 
2723 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_EXTENSION_CMDID, sync_flag);
2724 
2725 	return ret;
2726 }
2727 
2728 int ath6kl_wmi_get_challenge_resp_cmd(struct wmi *wmi, u32 cookie, u32 source)
2729 {
2730 	struct sk_buff *skb;
2731 	struct wmix_hb_challenge_resp_cmd *cmd;
2732 	int ret;
2733 
2734 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2735 	if (!skb)
2736 		return -ENOMEM;
2737 
2738 	cmd = (struct wmix_hb_challenge_resp_cmd *) skb->data;
2739 	cmd->cookie = cpu_to_le32(cookie);
2740 	cmd->source = cpu_to_le32(source);
2741 
2742 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_HB_CHALLENGE_RESP_CMDID,
2743 				       NO_SYNC_WMIFLAG);
2744 	return ret;
2745 }
2746 
2747 int ath6kl_wmi_config_debug_module_cmd(struct wmi *wmi, u32 valid, u32 config)
2748 {
2749 	struct ath6kl_wmix_dbglog_cfg_module_cmd *cmd;
2750 	struct sk_buff *skb;
2751 	int ret;
2752 
2753 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2754 	if (!skb)
2755 		return -ENOMEM;
2756 
2757 	cmd = (struct ath6kl_wmix_dbglog_cfg_module_cmd *) skb->data;
2758 	cmd->valid = cpu_to_le32(valid);
2759 	cmd->config = cpu_to_le32(config);
2760 
2761 	ret = ath6kl_wmi_cmd_send_xtnd(wmi, skb, WMIX_DBGLOG_CFG_MODULE_CMDID,
2762 				       NO_SYNC_WMIFLAG);
2763 	return ret;
2764 }
2765 
2766 int ath6kl_wmi_get_stats_cmd(struct wmi *wmi, u8 if_idx)
2767 {
2768 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_STATISTICS_CMDID);
2769 }
2770 
2771 int ath6kl_wmi_set_tx_pwr_cmd(struct wmi *wmi, u8 if_idx, u8 dbM)
2772 {
2773 	struct sk_buff *skb;
2774 	struct wmi_set_tx_pwr_cmd *cmd;
2775 	int ret;
2776 
2777 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_tx_pwr_cmd));
2778 	if (!skb)
2779 		return -ENOMEM;
2780 
2781 	cmd = (struct wmi_set_tx_pwr_cmd *) skb->data;
2782 	cmd->dbM = dbM;
2783 
2784 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_TX_PWR_CMDID,
2785 				  NO_SYNC_WMIFLAG);
2786 
2787 	return ret;
2788 }
2789 
2790 int ath6kl_wmi_get_tx_pwr_cmd(struct wmi *wmi, u8 if_idx)
2791 {
2792 	return ath6kl_wmi_simple_cmd(wmi, if_idx, WMI_GET_TX_PWR_CMDID);
2793 }
2794 
2795 int ath6kl_wmi_get_roam_tbl_cmd(struct wmi *wmi)
2796 {
2797 	return ath6kl_wmi_simple_cmd(wmi, 0, WMI_GET_ROAM_TBL_CMDID);
2798 }
2799 
2800 int ath6kl_wmi_set_lpreamble_cmd(struct wmi *wmi, u8 if_idx, u8 status,
2801 				 u8 preamble_policy)
2802 {
2803 	struct sk_buff *skb;
2804 	struct wmi_set_lpreamble_cmd *cmd;
2805 	int ret;
2806 
2807 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_lpreamble_cmd));
2808 	if (!skb)
2809 		return -ENOMEM;
2810 
2811 	cmd = (struct wmi_set_lpreamble_cmd *) skb->data;
2812 	cmd->status = status;
2813 	cmd->preamble_policy = preamble_policy;
2814 
2815 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_LPREAMBLE_CMDID,
2816 				  NO_SYNC_WMIFLAG);
2817 	return ret;
2818 }
2819 
2820 int ath6kl_wmi_set_rts_cmd(struct wmi *wmi, u16 threshold)
2821 {
2822 	struct sk_buff *skb;
2823 	struct wmi_set_rts_cmd *cmd;
2824 	int ret;
2825 
2826 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_rts_cmd));
2827 	if (!skb)
2828 		return -ENOMEM;
2829 
2830 	cmd = (struct wmi_set_rts_cmd *) skb->data;
2831 	cmd->threshold = cpu_to_le16(threshold);
2832 
2833 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_SET_RTS_CMDID,
2834 				  NO_SYNC_WMIFLAG);
2835 	return ret;
2836 }
2837 
2838 int ath6kl_wmi_set_wmm_txop(struct wmi *wmi, u8 if_idx, enum wmi_txop_cfg cfg)
2839 {
2840 	struct sk_buff *skb;
2841 	struct wmi_set_wmm_txop_cmd *cmd;
2842 	int ret;
2843 
2844 	if (!((cfg == WMI_TXOP_DISABLED) || (cfg == WMI_TXOP_ENABLED)))
2845 		return -EINVAL;
2846 
2847 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_set_wmm_txop_cmd));
2848 	if (!skb)
2849 		return -ENOMEM;
2850 
2851 	cmd = (struct wmi_set_wmm_txop_cmd *) skb->data;
2852 	cmd->txop_enable = cfg;
2853 
2854 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_WMM_TXOP_CMDID,
2855 				  NO_SYNC_WMIFLAG);
2856 	return ret;
2857 }
2858 
2859 int ath6kl_wmi_set_keepalive_cmd(struct wmi *wmi, u8 if_idx,
2860 				 u8 keep_alive_intvl)
2861 {
2862 	struct sk_buff *skb;
2863 	struct wmi_set_keepalive_cmd *cmd;
2864 	int ret;
2865 
2866 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2867 	if (!skb)
2868 		return -ENOMEM;
2869 
2870 	cmd = (struct wmi_set_keepalive_cmd *) skb->data;
2871 	cmd->keep_alive_intvl = keep_alive_intvl;
2872 
2873 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_KEEPALIVE_CMDID,
2874 				  NO_SYNC_WMIFLAG);
2875 
2876 	if (ret == 0)
2877 		ath6kl_debug_set_keepalive(wmi->parent_dev, keep_alive_intvl);
2878 
2879 	return ret;
2880 }
2881 
2882 int ath6kl_wmi_test_cmd(struct wmi *wmi, void *buf, size_t len)
2883 {
2884 	struct sk_buff *skb;
2885 	int ret;
2886 
2887 	skb = ath6kl_wmi_get_new_buf(len);
2888 	if (!skb)
2889 		return -ENOMEM;
2890 
2891 	memcpy(skb->data, buf, len);
2892 
2893 	ret = ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_TEST_CMDID, NO_SYNC_WMIFLAG);
2894 
2895 	return ret;
2896 }
2897 
2898 int ath6kl_wmi_mcast_filter_cmd(struct wmi *wmi, u8 if_idx, bool mc_all_on)
2899 {
2900 	struct sk_buff *skb;
2901 	struct wmi_mcast_filter_cmd *cmd;
2902 	int ret;
2903 
2904 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2905 	if (!skb)
2906 		return -ENOMEM;
2907 
2908 	cmd = (struct wmi_mcast_filter_cmd *) skb->data;
2909 	cmd->mcast_all_enable = mc_all_on;
2910 
2911 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_MCAST_FILTER_CMDID,
2912 				  NO_SYNC_WMIFLAG);
2913 	return ret;
2914 }
2915 
2916 int ath6kl_wmi_add_del_mcast_filter_cmd(struct wmi *wmi, u8 if_idx,
2917 					u8 *filter, bool add_filter)
2918 {
2919 	struct sk_buff *skb;
2920 	struct wmi_mcast_filter_add_del_cmd *cmd;
2921 	int ret;
2922 
2923 	if ((filter[0] != 0x33 || filter[1] != 0x33) &&
2924 	    (filter[0] != 0x01 || filter[1] != 0x00 ||
2925 	    filter[2] != 0x5e || filter[3] > 0x7f)) {
2926 		ath6kl_warn("invalid multicast filter address\n");
2927 		return -EINVAL;
2928 	}
2929 
2930 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
2931 	if (!skb)
2932 		return -ENOMEM;
2933 
2934 	cmd = (struct wmi_mcast_filter_add_del_cmd *) skb->data;
2935 	memcpy(cmd->mcast_mac, filter, ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
2936 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb,
2937 				  add_filter ? WMI_SET_MCAST_FILTER_CMDID :
2938 				  WMI_DEL_MCAST_FILTER_CMDID,
2939 				  NO_SYNC_WMIFLAG);
2940 
2941 	return ret;
2942 }
2943 
2944 s32 ath6kl_wmi_get_rate(s8 rate_index)
2945 {
2946 	if (rate_index == RATE_AUTO)
2947 		return 0;
2948 
2949 	return wmi_rate_tbl[(u32) rate_index][0];
2950 }
2951 
2952 static int ath6kl_wmi_get_pmkid_list_event_rx(struct wmi *wmi, u8 *datap,
2953 					      u32 len)
2954 {
2955 	struct wmi_pmkid_list_reply *reply;
2956 	u32 expected_len;
2957 
2958 	if (len < sizeof(struct wmi_pmkid_list_reply))
2959 		return -EINVAL;
2960 
2961 	reply = (struct wmi_pmkid_list_reply *)datap;
2962 	expected_len = sizeof(reply->num_pmkid) +
2963 		le32_to_cpu(reply->num_pmkid) * WMI_PMKID_LEN;
2964 
2965 	if (len < expected_len)
2966 		return -EINVAL;
2967 
2968 	return 0;
2969 }
2970 
2971 static int ath6kl_wmi_addba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
2972 					 struct ath6kl_vif *vif)
2973 {
2974 	struct wmi_addba_req_event *cmd = (struct wmi_addba_req_event *) datap;
2975 
2976 	aggr_recv_addba_req_evt(vif, cmd->tid,
2977 				le16_to_cpu(cmd->st_seq_no), cmd->win_sz);
2978 
2979 	return 0;
2980 }
2981 
2982 static int ath6kl_wmi_delba_req_event_rx(struct wmi *wmi, u8 *datap, int len,
2983 					 struct ath6kl_vif *vif)
2984 {
2985 	struct wmi_delba_event *cmd = (struct wmi_delba_event *) datap;
2986 
2987 	aggr_recv_delba_req_evt(vif, cmd->tid);
2988 
2989 	return 0;
2990 }
2991 
2992 /*  AP mode functions */
2993 
2994 int ath6kl_wmi_ap_profile_commit(struct wmi *wmip, u8 if_idx,
2995 				 struct wmi_connect_cmd *p)
2996 {
2997 	struct sk_buff *skb;
2998 	struct wmi_connect_cmd *cm;
2999 	int res;
3000 
3001 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3002 	if (!skb)
3003 		return -ENOMEM;
3004 
3005 	cm = (struct wmi_connect_cmd *) skb->data;
3006 	memcpy(cm, p, sizeof(*cm));
3007 
3008 	res = ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_CONFIG_COMMIT_CMDID,
3009 				  NO_SYNC_WMIFLAG);
3010 	ath6kl_dbg(ATH6KL_DBG_WMI, "%s: nw_type=%u auth_mode=%u ch=%u "
3011 		   "ctrl_flags=0x%x-> res=%d\n",
3012 		   __func__, p->nw_type, p->auth_mode, le16_to_cpu(p->ch),
3013 		   le32_to_cpu(p->ctrl_flags), res);
3014 	return res;
3015 }
3016 
3017 int ath6kl_wmi_ap_set_mlme(struct wmi *wmip, u8 if_idx, u8 cmd, const u8 *mac,
3018 			   u16 reason)
3019 {
3020 	struct sk_buff *skb;
3021 	struct wmi_ap_set_mlme_cmd *cm;
3022 
3023 	skb = ath6kl_wmi_get_new_buf(sizeof(*cm));
3024 	if (!skb)
3025 		return -ENOMEM;
3026 
3027 	cm = (struct wmi_ap_set_mlme_cmd *) skb->data;
3028 	memcpy(cm->mac, mac, ETH_ALEN);
3029 	cm->reason = cpu_to_le16(reason);
3030 	cm->cmd = cmd;
3031 
3032 	return ath6kl_wmi_cmd_send(wmip, if_idx, skb, WMI_AP_SET_MLME_CMDID,
3033 				   NO_SYNC_WMIFLAG);
3034 }
3035 
3036 int ath6kl_wmi_ap_hidden_ssid(struct wmi *wmi, u8 if_idx, bool enable)
3037 {
3038 	struct sk_buff *skb;
3039 	struct wmi_ap_hidden_ssid_cmd *cmd;
3040 
3041 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3042 	if (!skb)
3043 		return -ENOMEM;
3044 
3045 	cmd = (struct wmi_ap_hidden_ssid_cmd *) skb->data;
3046 	cmd->hidden_ssid = enable ? 1 : 0;
3047 
3048 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_HIDDEN_SSID_CMDID,
3049 				   NO_SYNC_WMIFLAG);
3050 }
3051 
3052 /* This command will be used to enable/disable AP uAPSD feature */
3053 int ath6kl_wmi_ap_set_apsd(struct wmi *wmi, u8 if_idx, u8 enable)
3054 {
3055 	struct wmi_ap_set_apsd_cmd *cmd;
3056 	struct sk_buff *skb;
3057 
3058 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3059 	if (!skb)
3060 		return -ENOMEM;
3061 
3062 	cmd = (struct wmi_ap_set_apsd_cmd *)skb->data;
3063 	cmd->enable = enable;
3064 
3065 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_APSD_CMDID,
3066 				   NO_SYNC_WMIFLAG);
3067 }
3068 
3069 int ath6kl_wmi_set_apsd_bfrd_traf(struct wmi *wmi, u8 if_idx,
3070 					     u16 aid, u16 bitmap, u32 flags)
3071 {
3072 	struct wmi_ap_apsd_buffered_traffic_cmd *cmd;
3073 	struct sk_buff *skb;
3074 
3075 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3076 	if (!skb)
3077 		return -ENOMEM;
3078 
3079 	cmd = (struct wmi_ap_apsd_buffered_traffic_cmd *)skb->data;
3080 	cmd->aid = cpu_to_le16(aid);
3081 	cmd->bitmap = cpu_to_le16(bitmap);
3082 	cmd->flags = cpu_to_le32(flags);
3083 
3084 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3085 				   WMI_AP_APSD_BUFFERED_TRAFFIC_CMDID,
3086 				   NO_SYNC_WMIFLAG);
3087 }
3088 
3089 static int ath6kl_wmi_pspoll_event_rx(struct wmi *wmi, u8 *datap, int len,
3090 				      struct ath6kl_vif *vif)
3091 {
3092 	struct wmi_pspoll_event *ev;
3093 
3094 	if (len < sizeof(struct wmi_pspoll_event))
3095 		return -EINVAL;
3096 
3097 	ev = (struct wmi_pspoll_event *) datap;
3098 
3099 	ath6kl_pspoll_event(vif, le16_to_cpu(ev->aid));
3100 
3101 	return 0;
3102 }
3103 
3104 static int ath6kl_wmi_dtimexpiry_event_rx(struct wmi *wmi, u8 *datap, int len,
3105 					  struct ath6kl_vif *vif)
3106 {
3107 	ath6kl_dtimexpiry_event(vif);
3108 
3109 	return 0;
3110 }
3111 
3112 int ath6kl_wmi_set_pvb_cmd(struct wmi *wmi, u8 if_idx, u16 aid,
3113 			   bool flag)
3114 {
3115 	struct sk_buff *skb;
3116 	struct wmi_ap_set_pvb_cmd *cmd;
3117 	int ret;
3118 
3119 	skb = ath6kl_wmi_get_new_buf(sizeof(struct wmi_ap_set_pvb_cmd));
3120 	if (!skb)
3121 		return -ENOMEM;
3122 
3123 	cmd = (struct wmi_ap_set_pvb_cmd *) skb->data;
3124 	cmd->aid = cpu_to_le16(aid);
3125 	cmd->rsvd = cpu_to_le16(0);
3126 	cmd->flag = cpu_to_le32(flag);
3127 
3128 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_AP_SET_PVB_CMDID,
3129 				  NO_SYNC_WMIFLAG);
3130 
3131 	return 0;
3132 }
3133 
3134 int ath6kl_wmi_set_rx_frame_format_cmd(struct wmi *wmi, u8 if_idx,
3135 				       u8 rx_meta_ver,
3136 				       bool rx_dot11_hdr, bool defrag_on_host)
3137 {
3138 	struct sk_buff *skb;
3139 	struct wmi_rx_frame_format_cmd *cmd;
3140 	int ret;
3141 
3142 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3143 	if (!skb)
3144 		return -ENOMEM;
3145 
3146 	cmd = (struct wmi_rx_frame_format_cmd *) skb->data;
3147 	cmd->dot11_hdr = rx_dot11_hdr ? 1 : 0;
3148 	cmd->defrag_on_host = defrag_on_host ? 1 : 0;
3149 	cmd->meta_ver = rx_meta_ver;
3150 
3151 	/* Delete the local aggr state, on host */
3152 	ret = ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_RX_FRAME_FORMAT_CMDID,
3153 				  NO_SYNC_WMIFLAG);
3154 
3155 	return ret;
3156 }
3157 
3158 int ath6kl_wmi_set_appie_cmd(struct wmi *wmi, u8 if_idx, u8 mgmt_frm_type,
3159 			     const u8 *ie, u8 ie_len)
3160 {
3161 	struct sk_buff *skb;
3162 	struct wmi_set_appie_cmd *p;
3163 
3164 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + ie_len);
3165 	if (!skb)
3166 		return -ENOMEM;
3167 
3168 	ath6kl_dbg(ATH6KL_DBG_WMI, "set_appie_cmd: mgmt_frm_type=%u "
3169 		   "ie_len=%u\n", mgmt_frm_type, ie_len);
3170 	p = (struct wmi_set_appie_cmd *) skb->data;
3171 	p->mgmt_frm_type = mgmt_frm_type;
3172 	p->ie_len = ie_len;
3173 
3174 	if (ie != NULL && ie_len > 0)
3175 		memcpy(p->ie_info, ie, ie_len);
3176 
3177 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SET_APPIE_CMDID,
3178 				   NO_SYNC_WMIFLAG);
3179 }
3180 
3181 int ath6kl_wmi_disable_11b_rates_cmd(struct wmi *wmi, bool disable)
3182 {
3183 	struct sk_buff *skb;
3184 	struct wmi_disable_11b_rates_cmd *cmd;
3185 
3186 	skb = ath6kl_wmi_get_new_buf(sizeof(*cmd));
3187 	if (!skb)
3188 		return -ENOMEM;
3189 
3190 	ath6kl_dbg(ATH6KL_DBG_WMI, "disable_11b_rates_cmd: disable=%u\n",
3191 		   disable);
3192 	cmd = (struct wmi_disable_11b_rates_cmd *) skb->data;
3193 	cmd->disable = disable ? 1 : 0;
3194 
3195 	return ath6kl_wmi_cmd_send(wmi, 0, skb, WMI_DISABLE_11B_RATES_CMDID,
3196 				   NO_SYNC_WMIFLAG);
3197 }
3198 
3199 int ath6kl_wmi_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx, u32 freq, u32 dur)
3200 {
3201 	struct sk_buff *skb;
3202 	struct wmi_remain_on_chnl_cmd *p;
3203 
3204 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3205 	if (!skb)
3206 		return -ENOMEM;
3207 
3208 	ath6kl_dbg(ATH6KL_DBG_WMI, "remain_on_chnl_cmd: freq=%u dur=%u\n",
3209 		   freq, dur);
3210 	p = (struct wmi_remain_on_chnl_cmd *) skb->data;
3211 	p->freq = cpu_to_le32(freq);
3212 	p->duration = cpu_to_le32(dur);
3213 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_REMAIN_ON_CHNL_CMDID,
3214 				   NO_SYNC_WMIFLAG);
3215 }
3216 
3217 /* ath6kl_wmi_send_action_cmd is to be deprecated. Use
3218  * ath6kl_wmi_send_mgmt_cmd instead. The new function supports P2P
3219  * mgmt operations using station interface.
3220  */
3221 static int ath6kl_wmi_send_action_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3222 				      u32 freq, u32 wait, const u8 *data,
3223 				      u16 data_len)
3224 {
3225 	struct sk_buff *skb;
3226 	struct wmi_send_action_cmd *p;
3227 	u8 *buf;
3228 
3229 	if (wait)
3230 		return -EINVAL; /* Offload for wait not supported */
3231 
3232 	buf = kmalloc(data_len, GFP_KERNEL);
3233 	if (!buf)
3234 		return -ENOMEM;
3235 
3236 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3237 	if (!skb) {
3238 		kfree(buf);
3239 		return -ENOMEM;
3240 	}
3241 
3242 	kfree(wmi->last_mgmt_tx_frame);
3243 	memcpy(buf, data, data_len);
3244 	wmi->last_mgmt_tx_frame = buf;
3245 	wmi->last_mgmt_tx_frame_len = data_len;
3246 
3247 	ath6kl_dbg(ATH6KL_DBG_WMI, "send_action_cmd: id=%u freq=%u wait=%u "
3248 		   "len=%u\n", id, freq, wait, data_len);
3249 	p = (struct wmi_send_action_cmd *) skb->data;
3250 	p->id = cpu_to_le32(id);
3251 	p->freq = cpu_to_le32(freq);
3252 	p->wait = cpu_to_le32(wait);
3253 	p->len = cpu_to_le16(data_len);
3254 	memcpy(p->data, data, data_len);
3255 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_ACTION_CMDID,
3256 				   NO_SYNC_WMIFLAG);
3257 }
3258 
3259 static int __ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id,
3260 				      u32 freq, u32 wait, const u8 *data,
3261 				      u16 data_len, u32 no_cck)
3262 {
3263 	struct sk_buff *skb;
3264 	struct wmi_send_mgmt_cmd *p;
3265 	u8 *buf;
3266 
3267 	if (wait)
3268 		return -EINVAL; /* Offload for wait not supported */
3269 
3270 	buf = kmalloc(data_len, GFP_KERNEL);
3271 	if (!buf)
3272 		return -ENOMEM;
3273 
3274 	skb = ath6kl_wmi_get_new_buf(sizeof(*p) + data_len);
3275 	if (!skb) {
3276 		kfree(buf);
3277 		return -ENOMEM;
3278 	}
3279 
3280 	kfree(wmi->last_mgmt_tx_frame);
3281 	memcpy(buf, data, data_len);
3282 	wmi->last_mgmt_tx_frame = buf;
3283 	wmi->last_mgmt_tx_frame_len = data_len;
3284 
3285 	ath6kl_dbg(ATH6KL_DBG_WMI, "send_action_cmd: id=%u freq=%u wait=%u "
3286 		   "len=%u\n", id, freq, wait, data_len);
3287 	p = (struct wmi_send_mgmt_cmd *) skb->data;
3288 	p->id = cpu_to_le32(id);
3289 	p->freq = cpu_to_le32(freq);
3290 	p->wait = cpu_to_le32(wait);
3291 	p->no_cck = cpu_to_le32(no_cck);
3292 	p->len = cpu_to_le16(data_len);
3293 	memcpy(p->data, data, data_len);
3294 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_SEND_MGMT_CMDID,
3295 				   NO_SYNC_WMIFLAG);
3296 }
3297 
3298 int ath6kl_wmi_send_mgmt_cmd(struct wmi *wmi, u8 if_idx, u32 id, u32 freq,
3299 				u32 wait, const u8 *data, u16 data_len,
3300 				u32 no_cck)
3301 {
3302 	int status;
3303 	struct ath6kl *ar = wmi->parent_dev;
3304 
3305 	if (test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
3306 		     ar->fw_capabilities)) {
3307 		/*
3308 		 * If capable of doing P2P mgmt operations using
3309 		 * station interface, send additional information like
3310 		 * supported rates to advertise and xmit rates for
3311 		 * probe requests
3312 		 */
3313 		status = __ath6kl_wmi_send_mgmt_cmd(ar->wmi, if_idx, id, freq,
3314 						    wait, data, data_len,
3315 						    no_cck);
3316 	} else {
3317 		status = ath6kl_wmi_send_action_cmd(ar->wmi, if_idx, id, freq,
3318 						    wait, data, data_len);
3319 	}
3320 
3321 	return status;
3322 }
3323 
3324 int ath6kl_wmi_send_probe_response_cmd(struct wmi *wmi, u8 if_idx, u32 freq,
3325 				       const u8 *dst, const u8 *data,
3326 				       u16 data_len)
3327 {
3328 	struct sk_buff *skb;
3329 	struct wmi_p2p_probe_response_cmd *p;
3330 	size_t cmd_len = sizeof(*p) + data_len;
3331 
3332 	if (data_len == 0)
3333 		cmd_len++; /* work around target minimum length requirement */
3334 
3335 	skb = ath6kl_wmi_get_new_buf(cmd_len);
3336 	if (!skb)
3337 		return -ENOMEM;
3338 
3339 	ath6kl_dbg(ATH6KL_DBG_WMI, "send_probe_response_cmd: freq=%u dst=%pM "
3340 		   "len=%u\n", freq, dst, data_len);
3341 	p = (struct wmi_p2p_probe_response_cmd *) skb->data;
3342 	p->freq = cpu_to_le32(freq);
3343 	memcpy(p->destination_addr, dst, ETH_ALEN);
3344 	p->len = cpu_to_le16(data_len);
3345 	memcpy(p->data, data, data_len);
3346 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb,
3347 				   WMI_SEND_PROBE_RESPONSE_CMDID,
3348 				   NO_SYNC_WMIFLAG);
3349 }
3350 
3351 int ath6kl_wmi_probe_report_req_cmd(struct wmi *wmi, u8 if_idx, bool enable)
3352 {
3353 	struct sk_buff *skb;
3354 	struct wmi_probe_req_report_cmd *p;
3355 
3356 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3357 	if (!skb)
3358 		return -ENOMEM;
3359 
3360 	ath6kl_dbg(ATH6KL_DBG_WMI, "probe_report_req_cmd: enable=%u\n",
3361 		   enable);
3362 	p = (struct wmi_probe_req_report_cmd *) skb->data;
3363 	p->enable = enable ? 1 : 0;
3364 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_PROBE_REQ_REPORT_CMDID,
3365 				   NO_SYNC_WMIFLAG);
3366 }
3367 
3368 int ath6kl_wmi_info_req_cmd(struct wmi *wmi, u8 if_idx, u32 info_req_flags)
3369 {
3370 	struct sk_buff *skb;
3371 	struct wmi_get_p2p_info *p;
3372 
3373 	skb = ath6kl_wmi_get_new_buf(sizeof(*p));
3374 	if (!skb)
3375 		return -ENOMEM;
3376 
3377 	ath6kl_dbg(ATH6KL_DBG_WMI, "info_req_cmd: flags=%x\n",
3378 		   info_req_flags);
3379 	p = (struct wmi_get_p2p_info *) skb->data;
3380 	p->info_req_flags = cpu_to_le32(info_req_flags);
3381 	return ath6kl_wmi_cmd_send(wmi, if_idx, skb, WMI_GET_P2P_INFO_CMDID,
3382 				   NO_SYNC_WMIFLAG);
3383 }
3384 
3385 int ath6kl_wmi_cancel_remain_on_chnl_cmd(struct wmi *wmi, u8 if_idx)
3386 {
3387 	ath6kl_dbg(ATH6KL_DBG_WMI, "cancel_remain_on_chnl_cmd\n");
3388 	return ath6kl_wmi_simple_cmd(wmi, if_idx,
3389 				     WMI_CANCEL_REMAIN_ON_CHNL_CMDID);
3390 }
3391 
3392 static int ath6kl_wmi_control_rx_xtnd(struct wmi *wmi, struct sk_buff *skb)
3393 {
3394 	struct wmix_cmd_hdr *cmd;
3395 	u32 len;
3396 	u16 id;
3397 	u8 *datap;
3398 	int ret = 0;
3399 
3400 	if (skb->len < sizeof(struct wmix_cmd_hdr)) {
3401 		ath6kl_err("bad packet 1\n");
3402 		return -EINVAL;
3403 	}
3404 
3405 	cmd = (struct wmix_cmd_hdr *) skb->data;
3406 	id = le32_to_cpu(cmd->cmd_id);
3407 
3408 	skb_pull(skb, sizeof(struct wmix_cmd_hdr));
3409 
3410 	datap = skb->data;
3411 	len = skb->len;
3412 
3413 	switch (id) {
3414 	case WMIX_HB_CHALLENGE_RESP_EVENTID:
3415 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event hb challenge resp\n");
3416 		break;
3417 	case WMIX_DBGLOG_EVENTID:
3418 		ath6kl_dbg(ATH6KL_DBG_WMI, "wmi event dbglog len %d\n", len);
3419 		ath6kl_debug_fwlog_event(wmi->parent_dev, datap, len);
3420 		break;
3421 	default:
3422 		ath6kl_warn("unknown cmd id 0x%x\n", id);
3423 		ret = -EINVAL;
3424 		break;
3425 	}
3426 
3427 	return ret;
3428 }
3429 
3430 static int ath6kl_wmi_roam_tbl_event_rx(struct wmi *wmi, u8 *datap, int len)
3431 {
3432 	return ath6kl_debug_roam_tbl_event(wmi->parent_dev, datap, len);
3433 }
3434 
3435 /* Process interface specific wmi events, caller would free the datap */
3436 static int ath6kl_wmi_proc_events_vif(struct wmi *wmi, u16 if_idx, u16 cmd_id,
3437 					u8 *datap, u32 len)
3438 {
3439 	struct ath6kl_vif *vif;
3440 
3441 	vif = ath6kl_get_vif_by_index(wmi->parent_dev, if_idx);
3442 	if (!vif) {
3443 		ath6kl_dbg(ATH6KL_DBG_WMI,
3444 			   "Wmi event for unavailable vif, vif_index:%d\n",
3445 			    if_idx);
3446 		return -EINVAL;
3447 	}
3448 
3449 	switch (cmd_id) {
3450 	case WMI_CONNECT_EVENTID:
3451 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CONNECT_EVENTID\n");
3452 		return ath6kl_wmi_connect_event_rx(wmi, datap, len, vif);
3453 	case WMI_DISCONNECT_EVENTID:
3454 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DISCONNECT_EVENTID\n");
3455 		return ath6kl_wmi_disconnect_event_rx(wmi, datap, len, vif);
3456 	case WMI_TKIP_MICERR_EVENTID:
3457 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TKIP_MICERR_EVENTID\n");
3458 		return ath6kl_wmi_tkip_micerr_event_rx(wmi, datap, len, vif);
3459 	case WMI_BSSINFO_EVENTID:
3460 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_BSSINFO_EVENTID\n");
3461 		return ath6kl_wmi_bssinfo_event_rx(wmi, datap, len, vif);
3462 	case WMI_NEIGHBOR_REPORT_EVENTID:
3463 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_NEIGHBOR_REPORT_EVENTID\n");
3464 		return ath6kl_wmi_neighbor_report_event_rx(wmi, datap, len,
3465 							   vif);
3466 	case WMI_SCAN_COMPLETE_EVENTID:
3467 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SCAN_COMPLETE_EVENTID\n");
3468 		return ath6kl_wmi_scan_complete_rx(wmi, datap, len, vif);
3469 	case WMI_REPORT_STATISTICS_EVENTID:
3470 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_STATISTICS_EVENTID\n");
3471 		return ath6kl_wmi_stats_event_rx(wmi, datap, len, vif);
3472 	case WMI_CAC_EVENTID:
3473 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CAC_EVENTID\n");
3474 		return ath6kl_wmi_cac_event_rx(wmi, datap, len, vif);
3475 	case WMI_PSPOLL_EVENTID:
3476 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSPOLL_EVENTID\n");
3477 		return ath6kl_wmi_pspoll_event_rx(wmi, datap, len, vif);
3478 	case WMI_DTIMEXPIRY_EVENTID:
3479 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DTIMEXPIRY_EVENTID\n");
3480 		return ath6kl_wmi_dtimexpiry_event_rx(wmi, datap, len, vif);
3481 	case WMI_ADDBA_REQ_EVENTID:
3482 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_REQ_EVENTID\n");
3483 		return ath6kl_wmi_addba_req_event_rx(wmi, datap, len, vif);
3484 	case WMI_DELBA_REQ_EVENTID:
3485 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_DELBA_REQ_EVENTID\n");
3486 		return ath6kl_wmi_delba_req_event_rx(wmi, datap, len, vif);
3487 	case WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID:
3488 		ath6kl_dbg(ATH6KL_DBG_WMI,
3489 			   "WMI_SET_HOST_SLEEP_MODE_CMD_PROCESSED_EVENTID");
3490 		return ath6kl_wmi_host_sleep_mode_cmd_prcd_evt_rx(wmi, vif);
3491 	case WMI_REMAIN_ON_CHNL_EVENTID:
3492 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REMAIN_ON_CHNL_EVENTID\n");
3493 		return ath6kl_wmi_remain_on_chnl_event_rx(wmi, datap, len, vif);
3494 	case WMI_CANCEL_REMAIN_ON_CHNL_EVENTID:
3495 		ath6kl_dbg(ATH6KL_DBG_WMI,
3496 			   "WMI_CANCEL_REMAIN_ON_CHNL_EVENTID\n");
3497 		return ath6kl_wmi_cancel_remain_on_chnl_event_rx(wmi, datap,
3498 								 len, vif);
3499 	case WMI_TX_STATUS_EVENTID:
3500 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_STATUS_EVENTID\n");
3501 		return ath6kl_wmi_tx_status_event_rx(wmi, datap, len, vif);
3502 	case WMI_RX_PROBE_REQ_EVENTID:
3503 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_PROBE_REQ_EVENTID\n");
3504 		return ath6kl_wmi_rx_probe_req_event_rx(wmi, datap, len, vif);
3505 	case WMI_RX_ACTION_EVENTID:
3506 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RX_ACTION_EVENTID\n");
3507 		return ath6kl_wmi_rx_action_event_rx(wmi, datap, len, vif);
3508 	default:
3509 		ath6kl_dbg(ATH6KL_DBG_WMI, "unknown cmd id 0x%x\n", cmd_id);
3510 		return -EINVAL;
3511 	}
3512 
3513 	return 0;
3514 }
3515 
3516 static int ath6kl_wmi_proc_events(struct wmi *wmi, struct sk_buff *skb)
3517 {
3518 	struct wmi_cmd_hdr *cmd;
3519 	int ret = 0;
3520 	u32 len;
3521 	u16 id;
3522 	u8 if_idx;
3523 	u8 *datap;
3524 
3525 	cmd = (struct wmi_cmd_hdr *) skb->data;
3526 	id = le16_to_cpu(cmd->cmd_id);
3527 	if_idx = le16_to_cpu(cmd->info1) & WMI_CMD_HDR_IF_ID_MASK;
3528 
3529 	skb_pull(skb, sizeof(struct wmi_cmd_hdr));
3530 	datap = skb->data;
3531 	len = skb->len;
3532 
3533 	ath6kl_dbg(ATH6KL_DBG_WMI, "wmi rx id %d len %d\n", id, len);
3534 	ath6kl_dbg_dump(ATH6KL_DBG_WMI_DUMP, NULL, "wmi rx ",
3535 			datap, len);
3536 
3537 	switch (id) {
3538 	case WMI_GET_BITRATE_CMDID:
3539 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_BITRATE_CMDID\n");
3540 		ret = ath6kl_wmi_bitrate_reply_rx(wmi, datap, len);
3541 		break;
3542 	case WMI_GET_CHANNEL_LIST_CMDID:
3543 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_CHANNEL_LIST_CMDID\n");
3544 		ret = ath6kl_wmi_ch_list_reply_rx(wmi, datap, len);
3545 		break;
3546 	case WMI_GET_TX_PWR_CMDID:
3547 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_TX_PWR_CMDID\n");
3548 		ret = ath6kl_wmi_tx_pwr_reply_rx(wmi, datap, len);
3549 		break;
3550 	case WMI_READY_EVENTID:
3551 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_READY_EVENTID\n");
3552 		ret = ath6kl_wmi_ready_event_rx(wmi, datap, len);
3553 		break;
3554 	case WMI_PEER_NODE_EVENTID:
3555 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PEER_NODE_EVENTID\n");
3556 		ret = ath6kl_wmi_peer_node_event_rx(wmi, datap, len);
3557 		break;
3558 	case WMI_REGDOMAIN_EVENTID:
3559 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REGDOMAIN_EVENTID\n");
3560 		ath6kl_wmi_regdomain_event(wmi, datap, len);
3561 		break;
3562 	case WMI_PSTREAM_TIMEOUT_EVENTID:
3563 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_PSTREAM_TIMEOUT_EVENTID\n");
3564 		ret = ath6kl_wmi_pstream_timeout_event_rx(wmi, datap, len);
3565 		break;
3566 	case WMI_CMDERROR_EVENTID:
3567 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CMDERROR_EVENTID\n");
3568 		ret = ath6kl_wmi_error_event_rx(wmi, datap, len);
3569 		break;
3570 	case WMI_RSSI_THRESHOLD_EVENTID:
3571 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_RSSI_THRESHOLD_EVENTID\n");
3572 		ret = ath6kl_wmi_rssi_threshold_event_rx(wmi, datap, len);
3573 		break;
3574 	case WMI_ERROR_REPORT_EVENTID:
3575 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ERROR_REPORT_EVENTID\n");
3576 		break;
3577 	case WMI_OPT_RX_FRAME_EVENTID:
3578 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_OPT_RX_FRAME_EVENTID\n");
3579 		/* this event has been deprecated */
3580 		break;
3581 	case WMI_REPORT_ROAM_TBL_EVENTID:
3582 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_TBL_EVENTID\n");
3583 		ret = ath6kl_wmi_roam_tbl_event_rx(wmi, datap, len);
3584 		break;
3585 	case WMI_EXTENSION_EVENTID:
3586 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_EXTENSION_EVENTID\n");
3587 		ret = ath6kl_wmi_control_rx_xtnd(wmi, skb);
3588 		break;
3589 	case WMI_CHANNEL_CHANGE_EVENTID:
3590 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_CHANNEL_CHANGE_EVENTID\n");
3591 		break;
3592 	case WMI_REPORT_ROAM_DATA_EVENTID:
3593 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_REPORT_ROAM_DATA_EVENTID\n");
3594 		break;
3595 	case WMI_TEST_EVENTID:
3596 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TEST_EVENTID\n");
3597 		ret = ath6kl_wmi_test_rx(wmi, datap, len);
3598 		break;
3599 	case WMI_GET_FIXRATES_CMDID:
3600 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_FIXRATES_CMDID\n");
3601 		ret = ath6kl_wmi_ratemask_reply_rx(wmi, datap, len);
3602 		break;
3603 	case WMI_TX_RETRY_ERR_EVENTID:
3604 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_RETRY_ERR_EVENTID\n");
3605 		break;
3606 	case WMI_SNR_THRESHOLD_EVENTID:
3607 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SNR_THRESHOLD_EVENTID\n");
3608 		ret = ath6kl_wmi_snr_threshold_event_rx(wmi, datap, len);
3609 		break;
3610 	case WMI_LQ_THRESHOLD_EVENTID:
3611 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_LQ_THRESHOLD_EVENTID\n");
3612 		break;
3613 	case WMI_APLIST_EVENTID:
3614 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_APLIST_EVENTID\n");
3615 		ret = ath6kl_wmi_aplist_event_rx(wmi, datap, len);
3616 		break;
3617 	case WMI_GET_KEEPALIVE_CMDID:
3618 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_KEEPALIVE_CMDID\n");
3619 		ret = ath6kl_wmi_keepalive_reply_rx(wmi, datap, len);
3620 		break;
3621 	case WMI_GET_WOW_LIST_EVENTID:
3622 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_WOW_LIST_EVENTID\n");
3623 		break;
3624 	case WMI_GET_PMKID_LIST_EVENTID:
3625 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_GET_PMKID_LIST_EVENTID\n");
3626 		ret = ath6kl_wmi_get_pmkid_list_event_rx(wmi, datap, len);
3627 		break;
3628 	case WMI_SET_PARAMS_REPLY_EVENTID:
3629 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_SET_PARAMS_REPLY_EVENTID\n");
3630 		break;
3631 	case WMI_ADDBA_RESP_EVENTID:
3632 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_ADDBA_RESP_EVENTID\n");
3633 		break;
3634 	case WMI_REPORT_BTCOEX_CONFIG_EVENTID:
3635 		ath6kl_dbg(ATH6KL_DBG_WMI,
3636 			   "WMI_REPORT_BTCOEX_CONFIG_EVENTID\n");
3637 		break;
3638 	case WMI_REPORT_BTCOEX_STATS_EVENTID:
3639 		ath6kl_dbg(ATH6KL_DBG_WMI,
3640 			   "WMI_REPORT_BTCOEX_STATS_EVENTID\n");
3641 		break;
3642 	case WMI_TX_COMPLETE_EVENTID:
3643 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_TX_COMPLETE_EVENTID\n");
3644 		ret = ath6kl_wmi_tx_complete_event_rx(datap, len);
3645 		break;
3646 	case WMI_P2P_CAPABILITIES_EVENTID:
3647 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_CAPABILITIES_EVENTID\n");
3648 		ret = ath6kl_wmi_p2p_capabilities_event_rx(datap, len);
3649 		break;
3650 	case WMI_P2P_INFO_EVENTID:
3651 		ath6kl_dbg(ATH6KL_DBG_WMI, "WMI_P2P_INFO_EVENTID\n");
3652 		ret = ath6kl_wmi_p2p_info_event_rx(datap, len);
3653 		break;
3654 	default:
3655 		/* may be the event is interface specific */
3656 		ret = ath6kl_wmi_proc_events_vif(wmi, if_idx, id, datap, len);
3657 		break;
3658 	}
3659 
3660 	dev_kfree_skb(skb);
3661 	return ret;
3662 }
3663 
3664 /* Control Path */
3665 int ath6kl_wmi_control_rx(struct wmi *wmi, struct sk_buff *skb)
3666 {
3667 	if (WARN_ON(skb == NULL))
3668 		return -EINVAL;
3669 
3670 	if (skb->len < sizeof(struct wmi_cmd_hdr)) {
3671 		ath6kl_err("bad packet 1\n");
3672 		dev_kfree_skb(skb);
3673 		return -EINVAL;
3674 	}
3675 
3676 	return ath6kl_wmi_proc_events(wmi, skb);
3677 }
3678 
3679 void ath6kl_wmi_reset(struct wmi *wmi)
3680 {
3681 	spin_lock_bh(&wmi->lock);
3682 
3683 	wmi->fat_pipe_exist = 0;
3684 	memset(wmi->stream_exist_for_ac, 0, sizeof(wmi->stream_exist_for_ac));
3685 
3686 	spin_unlock_bh(&wmi->lock);
3687 }
3688 
3689 void *ath6kl_wmi_init(struct ath6kl *dev)
3690 {
3691 	struct wmi *wmi;
3692 
3693 	wmi = kzalloc(sizeof(struct wmi), GFP_KERNEL);
3694 	if (!wmi)
3695 		return NULL;
3696 
3697 	spin_lock_init(&wmi->lock);
3698 
3699 	wmi->parent_dev = dev;
3700 
3701 	wmi->pwr_mode = REC_POWER;
3702 
3703 	ath6kl_wmi_reset(wmi);
3704 
3705 	return wmi;
3706 }
3707 
3708 void ath6kl_wmi_shutdown(struct wmi *wmi)
3709 {
3710 	if (!wmi)
3711 		return;
3712 
3713 	kfree(wmi->last_mgmt_tx_frame);
3714 	kfree(wmi);
3715 }
3716