1 /*
2  * Copyright (c) 2012-2017 Qualcomm Atheros, Inc.
3  *
4  * Permission to use, copy, modify, and/or distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include <linux/moduleparam.h>
18 #include <linux/etherdevice.h>
19 #include <linux/if_arp.h>
20 
21 #include "wil6210.h"
22 #include "txrx.h"
23 #include "wmi.h"
24 #include "trace.h"
25 
26 static uint max_assoc_sta = WIL6210_MAX_CID;
27 module_param(max_assoc_sta, uint, 0644);
28 MODULE_PARM_DESC(max_assoc_sta, " Max number of stations associated to the AP");
29 
30 int agg_wsize; /* = 0; */
31 module_param(agg_wsize, int, 0644);
32 MODULE_PARM_DESC(agg_wsize, " Window size for Tx Block Ack after connect;"
33 		 " 0 - use default; < 0 - don't auto-establish");
34 
35 u8 led_id = WIL_LED_INVALID_ID;
36 module_param(led_id, byte, 0444);
37 MODULE_PARM_DESC(led_id,
38 		 " 60G device led enablement. Set the led ID (0-2) to enable");
39 
40 #define WIL_WAIT_FOR_SUSPEND_RESUME_COMP 200
41 
42 /**
43  * WMI event receiving - theory of operations
44  *
45  * When firmware about to report WMI event, it fills memory area
46  * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for
47  * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler.
48  *
49  * @wmi_recv_cmd reads event, allocates memory chunk  and attaches it to the
50  * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up
51  * and handles events within the @wmi_event_worker. Every event get detached
52  * from list, processed and deleted.
53  *
54  * Purpose for this mechanism is to release IRQ thread; otherwise,
55  * if WMI event handling involves another WMI command flow, this 2-nd flow
56  * won't be completed because of blocked IRQ thread.
57  */
58 
59 /**
60  * Addressing - theory of operations
61  *
62  * There are several buses present on the WIL6210 card.
63  * Same memory areas are visible at different address on
64  * the different busses. There are 3 main bus masters:
65  *  - MAC CPU (ucode)
66  *  - User CPU (firmware)
67  *  - AHB (host)
68  *
69  * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing
70  * AHB addresses starting from 0x880000
71  *
72  * Internally, firmware uses addresses that allows faster access but
73  * are invisible from the host. To read from these addresses, alternative
74  * AHB address must be used.
75  *
76  * Memory mapping
77  * Linker address         PCI/Host address
78  *                        0x880000 .. 0xa80000  2Mb BAR0
79  * 0x800000 .. 0x807000   0x900000 .. 0x907000  28k DCCM
80  * 0x840000 .. 0x857000   0x908000 .. 0x91f000  92k PERIPH
81  */
82 
83 /**
84  * @fw_mapping provides memory remapping table
85  *
86  * array size should be in sync with the declaration in the wil6210.h
87  */
88 const struct fw_map fw_mapping[] = {
89 	/* FW code RAM 256k */
90 	{0x000000, 0x040000, 0x8c0000, "fw_code", true},
91 	/* FW data RAM 32k */
92 	{0x800000, 0x808000, 0x900000, "fw_data", true},
93 	/* periph data 128k */
94 	{0x840000, 0x860000, 0x908000, "fw_peri", true},
95 	/* various RGF 40k */
96 	{0x880000, 0x88a000, 0x880000, "rgf", true},
97 	/* AGC table   4k */
98 	{0x88a000, 0x88b000, 0x88a000, "AGC_tbl", true},
99 	/* Pcie_ext_rgf 4k */
100 	{0x88b000, 0x88c000, 0x88b000, "rgf_ext", true},
101 	/* mac_ext_rgf 512b */
102 	{0x88c000, 0x88c200, 0x88c000, "mac_rgf_ext", true},
103 	/* upper area 548k */
104 	{0x8c0000, 0x949000, 0x8c0000, "upper", true},
105 	/* UCODE areas - accessible by debugfs blobs but not by
106 	 * wmi_addr_remap. UCODE areas MUST be added AFTER FW areas!
107 	 */
108 	/* ucode code RAM 128k */
109 	{0x000000, 0x020000, 0x920000, "uc_code", false},
110 	/* ucode data RAM 16k */
111 	{0x800000, 0x804000, 0x940000, "uc_data", false},
112 };
113 
114 struct blink_on_off_time led_blink_time[] = {
115 	{WIL_LED_BLINK_ON_SLOW_MS, WIL_LED_BLINK_OFF_SLOW_MS},
116 	{WIL_LED_BLINK_ON_MED_MS, WIL_LED_BLINK_OFF_MED_MS},
117 	{WIL_LED_BLINK_ON_FAST_MS, WIL_LED_BLINK_OFF_FAST_MS},
118 };
119 
120 u8 led_polarity = LED_POLARITY_LOW_ACTIVE;
121 
122 /**
123  * return AHB address for given firmware internal (linker) address
124  * @x - internal address
125  * If address have no valid AHB mapping, return 0
126  */
127 static u32 wmi_addr_remap(u32 x)
128 {
129 	uint i;
130 
131 	for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
132 		if (fw_mapping[i].fw &&
133 		    ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to)))
134 			return x + fw_mapping[i].host - fw_mapping[i].from;
135 	}
136 
137 	return 0;
138 }
139 
140 /**
141  * Check address validity for WMI buffer; remap if needed
142  * @ptr - internal (linker) fw/ucode address
143  *
144  * Valid buffer should be DWORD aligned
145  *
146  * return address for accessing buffer from the host;
147  * if buffer is not valid, return NULL.
148  */
149 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_)
150 {
151 	u32 off;
152 	u32 ptr = le32_to_cpu(ptr_);
153 
154 	if (ptr % 4)
155 		return NULL;
156 
157 	ptr = wmi_addr_remap(ptr);
158 	if (ptr < WIL6210_FW_HOST_OFF)
159 		return NULL;
160 
161 	off = HOSTADDR(ptr);
162 	if (off > wil->bar_size - 4)
163 		return NULL;
164 
165 	return wil->csr + off;
166 }
167 
168 /**
169  * Check address validity
170  */
171 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr)
172 {
173 	u32 off;
174 
175 	if (ptr % 4)
176 		return NULL;
177 
178 	if (ptr < WIL6210_FW_HOST_OFF)
179 		return NULL;
180 
181 	off = HOSTADDR(ptr);
182 	if (off > wil->bar_size - 4)
183 		return NULL;
184 
185 	return wil->csr + off;
186 }
187 
188 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
189 		 struct wil6210_mbox_hdr *hdr)
190 {
191 	void __iomem *src = wmi_buffer(wil, ptr);
192 
193 	if (!src)
194 		return -EINVAL;
195 
196 	wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
197 
198 	return 0;
199 }
200 
201 static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
202 {
203 	struct {
204 		struct wil6210_mbox_hdr hdr;
205 		struct wmi_cmd_hdr wmi;
206 	} __packed cmd = {
207 		.hdr = {
208 			.type = WIL_MBOX_HDR_TYPE_WMI,
209 			.flags = 0,
210 			.len = cpu_to_le16(sizeof(cmd.wmi) + len),
211 		},
212 		.wmi = {
213 			.mid = 0,
214 			.command_id = cpu_to_le16(cmdid),
215 		},
216 	};
217 	struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx;
218 	struct wil6210_mbox_ring_desc d_head;
219 	u32 next_head;
220 	void __iomem *dst;
221 	void __iomem *head = wmi_addr(wil, r->head);
222 	uint retry;
223 	int rc = 0;
224 
225 	if (sizeof(cmd) + len > r->entry_size) {
226 		wil_err(wil, "WMI size too large: %d bytes, max is %d\n",
227 			(int)(sizeof(cmd) + len), r->entry_size);
228 		return -ERANGE;
229 	}
230 
231 	might_sleep();
232 
233 	if (!test_bit(wil_status_fwready, wil->status)) {
234 		wil_err(wil, "WMI: cannot send command while FW not ready\n");
235 		return -EAGAIN;
236 	}
237 
238 	/* Allow sending only suspend / resume commands during susepnd flow */
239 	if ((test_bit(wil_status_suspending, wil->status) ||
240 	     test_bit(wil_status_suspended, wil->status) ||
241 	     test_bit(wil_status_resuming, wil->status)) &&
242 	     ((cmdid != WMI_TRAFFIC_SUSPEND_CMDID) &&
243 	      (cmdid != WMI_TRAFFIC_RESUME_CMDID))) {
244 		wil_err(wil, "WMI: reject send_command during suspend\n");
245 		return -EINVAL;
246 	}
247 
248 	if (!head) {
249 		wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head);
250 		return -EINVAL;
251 	}
252 
253 	wil_halp_vote(wil);
254 
255 	/* read Tx head till it is not busy */
256 	for (retry = 5; retry > 0; retry--) {
257 		wil_memcpy_fromio_32(&d_head, head, sizeof(d_head));
258 		if (d_head.sync == 0)
259 			break;
260 		msleep(20);
261 	}
262 	if (d_head.sync != 0) {
263 		wil_err(wil, "WMI head busy\n");
264 		rc = -EBUSY;
265 		goto out;
266 	}
267 	/* next head */
268 	next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size);
269 	wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
270 	/* wait till FW finish with previous command */
271 	for (retry = 5; retry > 0; retry--) {
272 		if (!test_bit(wil_status_fwready, wil->status)) {
273 			wil_err(wil, "WMI: cannot send command while FW not ready\n");
274 			rc = -EAGAIN;
275 			goto out;
276 		}
277 		r->tail = wil_r(wil, RGF_MBOX +
278 				offsetof(struct wil6210_mbox_ctl, tx.tail));
279 		if (next_head != r->tail)
280 			break;
281 		msleep(20);
282 	}
283 	if (next_head == r->tail) {
284 		wil_err(wil, "WMI ring full\n");
285 		rc = -EBUSY;
286 		goto out;
287 	}
288 	dst = wmi_buffer(wil, d_head.addr);
289 	if (!dst) {
290 		wil_err(wil, "invalid WMI buffer: 0x%08x\n",
291 			le32_to_cpu(d_head.addr));
292 		rc = -EAGAIN;
293 		goto out;
294 	}
295 	cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
296 	/* set command */
297 	wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len);
298 	wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
299 			 sizeof(cmd), true);
300 	wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
301 			 len, true);
302 	wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
303 	wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
304 	/* mark entry as full */
305 	wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1);
306 	/* advance next ptr */
307 	wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head),
308 	      r->head = next_head);
309 
310 	trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
311 
312 	/* interrupt to FW */
313 	wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS),
314 	      SW_INT_MBOX);
315 
316 out:
317 	wil_halp_unvote(wil);
318 	return rc;
319 }
320 
321 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
322 {
323 	int rc;
324 
325 	mutex_lock(&wil->wmi_mutex);
326 	rc = __wmi_send(wil, cmdid, buf, len);
327 	mutex_unlock(&wil->wmi_mutex);
328 
329 	return rc;
330 }
331 
332 /*=== Event handlers ===*/
333 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
334 {
335 	struct wireless_dev *wdev = wil->wdev;
336 	struct wmi_ready_event *evt = d;
337 
338 	wil->n_mids = evt->numof_additional_mids;
339 
340 	wil_info(wil, "FW ver. %s(SW %d); MAC %pM; %d MID's\n",
341 		 wil->fw_version, le32_to_cpu(evt->sw_version),
342 		 evt->mac, wil->n_mids);
343 	/* ignore MAC address, we already have it from the boot loader */
344 	strlcpy(wdev->wiphy->fw_version, wil->fw_version,
345 		sizeof(wdev->wiphy->fw_version));
346 
347 	wil_set_recovery_state(wil, fw_recovery_idle);
348 	set_bit(wil_status_fwready, wil->status);
349 	/* let the reset sequence continue */
350 	complete(&wil->wmi_ready);
351 }
352 
353 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
354 {
355 	struct wmi_rx_mgmt_packet_event *data = d;
356 	struct wiphy *wiphy = wil_to_wiphy(wil);
357 	struct ieee80211_mgmt *rx_mgmt_frame =
358 			(struct ieee80211_mgmt *)data->payload;
359 	int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload);
360 	int ch_no;
361 	u32 freq;
362 	struct ieee80211_channel *channel;
363 	s32 signal;
364 	__le16 fc;
365 	u32 d_len;
366 	u16 d_status;
367 
368 	if (flen < 0) {
369 		wil_err(wil, "MGMT Rx: short event, len %d\n", len);
370 		return;
371 	}
372 
373 	d_len = le32_to_cpu(data->info.len);
374 	if (d_len != flen) {
375 		wil_err(wil,
376 			"MGMT Rx: length mismatch, d_len %d should be %d\n",
377 			d_len, flen);
378 		return;
379 	}
380 
381 	ch_no = data->info.channel + 1;
382 	freq = ieee80211_channel_to_frequency(ch_no, NL80211_BAND_60GHZ);
383 	channel = ieee80211_get_channel(wiphy, freq);
384 	signal = data->info.sqi;
385 	d_status = le16_to_cpu(data->info.status);
386 	fc = rx_mgmt_frame->frame_control;
387 
388 	wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n",
389 		    data->info.channel, data->info.mcs, data->info.snr,
390 		    data->info.sqi);
391 	wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
392 		    le16_to_cpu(fc));
393 	wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
394 		    data->info.qid, data->info.mid, data->info.cid);
395 	wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame,
396 			 d_len, true);
397 
398 	if (!channel) {
399 		wil_err(wil, "Frame on unsupported channel\n");
400 		return;
401 	}
402 
403 	if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
404 		struct cfg80211_bss *bss;
405 		u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
406 		u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
407 		u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
408 		const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
409 		size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
410 						 u.beacon.variable);
411 		wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
412 		wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
413 		wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
414 		wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
415 				 ie_len, true);
416 
417 		wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
418 
419 		bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
420 						d_len, signal, GFP_KERNEL);
421 		if (bss) {
422 			wil_dbg_wmi(wil, "Added BSS %pM\n",
423 				    rx_mgmt_frame->bssid);
424 			cfg80211_put_bss(wiphy, bss);
425 		} else {
426 			wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
427 		}
428 	} else {
429 		mutex_lock(&wil->p2p_wdev_mutex);
430 		cfg80211_rx_mgmt(wil->radio_wdev, freq, signal,
431 				 (void *)rx_mgmt_frame, d_len, 0);
432 		mutex_unlock(&wil->p2p_wdev_mutex);
433 	}
434 }
435 
436 static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
437 {
438 	struct wmi_tx_mgmt_packet_event *data = d;
439 	struct ieee80211_mgmt *mgmt_frame =
440 			(struct ieee80211_mgmt *)data->payload;
441 	int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload);
442 
443 	wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame,
444 			 flen, true);
445 }
446 
447 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
448 				  void *d, int len)
449 {
450 	mutex_lock(&wil->p2p_wdev_mutex);
451 	if (wil->scan_request) {
452 		struct wmi_scan_complete_event *data = d;
453 		int status = le32_to_cpu(data->status);
454 		struct cfg80211_scan_info info = {
455 			.aborted = ((status != WMI_SCAN_SUCCESS) &&
456 				(status != WMI_SCAN_ABORT_REJECTED)),
457 		};
458 
459 		wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", status);
460 		wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
461 			     wil->scan_request, info.aborted);
462 		del_timer_sync(&wil->scan_timer);
463 		cfg80211_scan_done(wil->scan_request, &info);
464 		wil->radio_wdev = wil->wdev;
465 		wil->scan_request = NULL;
466 		wake_up_interruptible(&wil->wq);
467 		if (wil->p2p.pending_listen_wdev) {
468 			wil_dbg_misc(wil, "Scheduling delayed listen\n");
469 			schedule_work(&wil->p2p.delayed_listen_work);
470 		}
471 	} else {
472 		wil_err(wil, "SCAN_COMPLETE while not scanning\n");
473 	}
474 	mutex_unlock(&wil->p2p_wdev_mutex);
475 }
476 
477 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
478 {
479 	struct net_device *ndev = wil_to_ndev(wil);
480 	struct wireless_dev *wdev = wil->wdev;
481 	struct wmi_connect_event *evt = d;
482 	int ch; /* channel number */
483 	struct station_info sinfo;
484 	u8 *assoc_req_ie, *assoc_resp_ie;
485 	size_t assoc_req_ielen, assoc_resp_ielen;
486 	/* capinfo(u16) + listen_interval(u16) + IEs */
487 	const size_t assoc_req_ie_offset = sizeof(u16) * 2;
488 	/* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
489 	const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
490 	int rc;
491 
492 	if (len < sizeof(*evt)) {
493 		wil_err(wil, "Connect event too short : %d bytes\n", len);
494 		return;
495 	}
496 	if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
497 		   evt->assoc_resp_len) {
498 		wil_err(wil,
499 			"Connect event corrupted : %d != %d + %d + %d + %d\n",
500 			len, (int)sizeof(*evt), evt->beacon_ie_len,
501 			evt->assoc_req_len, evt->assoc_resp_len);
502 		return;
503 	}
504 	if (evt->cid >= WIL6210_MAX_CID) {
505 		wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
506 		return;
507 	}
508 
509 	ch = evt->channel + 1;
510 	wil_info(wil, "Connect %pM channel [%d] cid %d aid %d\n",
511 		 evt->bssid, ch, evt->cid, evt->aid);
512 	wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
513 			 evt->assoc_info, len - sizeof(*evt), true);
514 
515 	/* figure out IE's */
516 	assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
517 					assoc_req_ie_offset];
518 	assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
519 	if (evt->assoc_req_len <= assoc_req_ie_offset) {
520 		assoc_req_ie = NULL;
521 		assoc_req_ielen = 0;
522 	}
523 
524 	assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
525 					 evt->assoc_req_len +
526 					 assoc_resp_ie_offset];
527 	assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
528 	if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
529 		assoc_resp_ie = NULL;
530 		assoc_resp_ielen = 0;
531 	}
532 
533 	if (test_bit(wil_status_resetting, wil->status) ||
534 	    !test_bit(wil_status_fwready, wil->status)) {
535 		wil_err(wil, "status_resetting, cancel connect event, CID %d\n",
536 			evt->cid);
537 		/* no need for cleanup, wil_reset will do that */
538 		return;
539 	}
540 
541 	mutex_lock(&wil->mutex);
542 
543 	if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
544 	    (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
545 		if (!test_bit(wil_status_fwconnecting, wil->status)) {
546 			wil_err(wil, "Not in connecting state\n");
547 			mutex_unlock(&wil->mutex);
548 			return;
549 		}
550 		del_timer_sync(&wil->connect_timer);
551 	} else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
552 		   (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
553 		if (wil->sta[evt->cid].status != wil_sta_unused) {
554 			wil_err(wil, "AP: Invalid status %d for CID %d\n",
555 				wil->sta[evt->cid].status, evt->cid);
556 			mutex_unlock(&wil->mutex);
557 			return;
558 		}
559 	}
560 
561 	/* FIXME FW can transmit only ucast frames to peer */
562 	/* FIXME real ring_id instead of hard coded 0 */
563 	ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid);
564 	wil->sta[evt->cid].status = wil_sta_conn_pending;
565 
566 	rc = wil_tx_init(wil, evt->cid);
567 	if (rc) {
568 		wil_err(wil, "config tx vring failed for CID %d, rc (%d)\n",
569 			evt->cid, rc);
570 		wmi_disconnect_sta(wil, wil->sta[evt->cid].addr,
571 				   WLAN_REASON_UNSPECIFIED, false, false);
572 	} else {
573 		wil_info(wil, "successful connection to CID %d\n", evt->cid);
574 	}
575 
576 	if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
577 	    (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
578 		if (rc) {
579 			netif_carrier_off(ndev);
580 			wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS);
581 			wil_err(wil, "cfg80211_connect_result with failure\n");
582 			cfg80211_connect_result(ndev, evt->bssid, NULL, 0,
583 						NULL, 0,
584 						WLAN_STATUS_UNSPECIFIED_FAILURE,
585 						GFP_KERNEL);
586 			goto out;
587 		} else {
588 			struct wiphy *wiphy = wil_to_wiphy(wil);
589 
590 			cfg80211_ref_bss(wiphy, wil->bss);
591 			cfg80211_connect_bss(ndev, evt->bssid, wil->bss,
592 					     assoc_req_ie, assoc_req_ielen,
593 					     assoc_resp_ie, assoc_resp_ielen,
594 					     WLAN_STATUS_SUCCESS, GFP_KERNEL,
595 					     NL80211_TIMEOUT_UNSPECIFIED);
596 		}
597 		wil->bss = NULL;
598 	} else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
599 		   (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
600 		if (rc) {
601 			if (disable_ap_sme)
602 				/* notify new_sta has failed */
603 				cfg80211_del_sta(ndev, evt->bssid, GFP_KERNEL);
604 			goto out;
605 		}
606 
607 		memset(&sinfo, 0, sizeof(sinfo));
608 
609 		sinfo.generation = wil->sinfo_gen++;
610 
611 		if (assoc_req_ie) {
612 			sinfo.assoc_req_ies = assoc_req_ie;
613 			sinfo.assoc_req_ies_len = assoc_req_ielen;
614 		}
615 
616 		cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
617 	} else {
618 		wil_err(wil, "unhandled iftype %d for CID %d\n", wdev->iftype,
619 			evt->cid);
620 		goto out;
621 	}
622 
623 	wil->sta[evt->cid].status = wil_sta_connected;
624 	wil->sta[evt->cid].aid = evt->aid;
625 	set_bit(wil_status_fwconnected, wil->status);
626 	wil_update_net_queues_bh(wil, NULL, false);
627 
628 out:
629 	if (rc)
630 		wil->sta[evt->cid].status = wil_sta_unused;
631 	clear_bit(wil_status_fwconnecting, wil->status);
632 	mutex_unlock(&wil->mutex);
633 }
634 
635 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
636 			       void *d, int len)
637 {
638 	struct wmi_disconnect_event *evt = d;
639 	u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
640 
641 	wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
642 		 evt->bssid, reason_code, evt->disconnect_reason);
643 
644 	wil->sinfo_gen++;
645 
646 	if (test_bit(wil_status_resetting, wil->status) ||
647 	    !test_bit(wil_status_fwready, wil->status)) {
648 		wil_err(wil, "status_resetting, cancel disconnect event\n");
649 		/* no need for cleanup, wil_reset will do that */
650 		return;
651 	}
652 
653 	mutex_lock(&wil->mutex);
654 	wil6210_disconnect(wil, evt->bssid, reason_code, true);
655 	mutex_unlock(&wil->mutex);
656 }
657 
658 /*
659  * Firmware reports EAPOL frame using WME event.
660  * Reconstruct Ethernet frame and deliver it via normal Rx
661  */
662 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
663 			     void *d, int len)
664 {
665 	struct net_device *ndev = wil_to_ndev(wil);
666 	struct wmi_eapol_rx_event *evt = d;
667 	u16 eapol_len = le16_to_cpu(evt->eapol_len);
668 	int sz = eapol_len + ETH_HLEN;
669 	struct sk_buff *skb;
670 	struct ethhdr *eth;
671 	int cid;
672 	struct wil_net_stats *stats = NULL;
673 
674 	wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
675 		    evt->src_mac);
676 
677 	cid = wil_find_cid(wil, evt->src_mac);
678 	if (cid >= 0)
679 		stats = &wil->sta[cid].stats;
680 
681 	if (eapol_len > 196) { /* TODO: revisit size limit */
682 		wil_err(wil, "EAPOL too large\n");
683 		return;
684 	}
685 
686 	skb = alloc_skb(sz, GFP_KERNEL);
687 	if (!skb) {
688 		wil_err(wil, "Failed to allocate skb\n");
689 		return;
690 	}
691 
692 	eth = skb_put(skb, ETH_HLEN);
693 	ether_addr_copy(eth->h_dest, ndev->dev_addr);
694 	ether_addr_copy(eth->h_source, evt->src_mac);
695 	eth->h_proto = cpu_to_be16(ETH_P_PAE);
696 	skb_put_data(skb, evt->eapol, eapol_len);
697 	skb->protocol = eth_type_trans(skb, ndev);
698 	if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
699 		ndev->stats.rx_packets++;
700 		ndev->stats.rx_bytes += sz;
701 		if (stats) {
702 			stats->rx_packets++;
703 			stats->rx_bytes += sz;
704 		}
705 	} else {
706 		ndev->stats.rx_dropped++;
707 		if (stats)
708 			stats->rx_dropped++;
709 	}
710 }
711 
712 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len)
713 {
714 	struct wmi_vring_en_event *evt = d;
715 	u8 vri = evt->vring_index;
716 	struct wireless_dev *wdev = wil_to_wdev(wil);
717 
718 	wil_dbg_wmi(wil, "Enable vring %d\n", vri);
719 
720 	if (vri >= ARRAY_SIZE(wil->vring_tx)) {
721 		wil_err(wil, "Enable for invalid vring %d\n", vri);
722 		return;
723 	}
724 
725 	if (wdev->iftype != NL80211_IFTYPE_AP || !disable_ap_sme)
726 		/* in AP mode with disable_ap_sme, this is done by
727 		 * wil_cfg80211_change_station()
728 		 */
729 		wil->vring_tx_data[vri].dot1x_open = true;
730 	if (vri == wil->bcast_vring) /* no BA for bcast */
731 		return;
732 	if (agg_wsize >= 0)
733 		wil_addba_tx_request(wil, vri, agg_wsize);
734 }
735 
736 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
737 			      int len)
738 {
739 	struct wmi_ba_status_event *evt = d;
740 	struct vring_tx_data *txdata;
741 
742 	wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
743 		    evt->ringid,
744 		    evt->status == WMI_BA_AGREED ? "OK" : "N/A",
745 		    evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
746 		    evt->amsdu ? "+" : "-");
747 
748 	if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
749 		wil_err(wil, "invalid ring id %d\n", evt->ringid);
750 		return;
751 	}
752 
753 	if (evt->status != WMI_BA_AGREED) {
754 		evt->ba_timeout = 0;
755 		evt->agg_wsize = 0;
756 		evt->amsdu = 0;
757 	}
758 
759 	txdata = &wil->vring_tx_data[evt->ringid];
760 
761 	txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
762 	txdata->agg_wsize = evt->agg_wsize;
763 	txdata->agg_amsdu = evt->amsdu;
764 	txdata->addba_in_progress = false;
765 }
766 
767 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
768 				 int len)
769 {
770 	struct wmi_rcp_addba_req_event *evt = d;
771 
772 	wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
773 			     evt->ba_param_set, evt->ba_timeout,
774 			     evt->ba_seq_ctrl);
775 }
776 
777 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
778 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
779 {
780 	struct wmi_delba_event *evt = d;
781 	u8 cid, tid;
782 	u16 reason = __le16_to_cpu(evt->reason);
783 	struct wil_sta_info *sta;
784 	struct wil_tid_ampdu_rx *r;
785 
786 	might_sleep();
787 	parse_cidxtid(evt->cidxtid, &cid, &tid);
788 	wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
789 		    cid, tid,
790 		    evt->from_initiator ? "originator" : "recipient",
791 		    reason);
792 	if (!evt->from_initiator) {
793 		int i;
794 		/* find Tx vring it belongs to */
795 		for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
796 			if ((wil->vring2cid_tid[i][0] == cid) &&
797 			    (wil->vring2cid_tid[i][1] == tid)) {
798 				struct vring_tx_data *txdata =
799 					&wil->vring_tx_data[i];
800 
801 				wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
802 				txdata->agg_timeout = 0;
803 				txdata->agg_wsize = 0;
804 				txdata->addba_in_progress = false;
805 
806 				break; /* max. 1 matching ring */
807 			}
808 		}
809 		if (i >= ARRAY_SIZE(wil->vring2cid_tid))
810 			wil_err(wil, "DELBA: unable to find Tx vring\n");
811 		return;
812 	}
813 
814 	sta = &wil->sta[cid];
815 
816 	spin_lock_bh(&sta->tid_rx_lock);
817 
818 	r = sta->tid_rx[tid];
819 	sta->tid_rx[tid] = NULL;
820 	wil_tid_ampdu_rx_free(wil, r);
821 
822 	spin_unlock_bh(&sta->tid_rx_lock);
823 }
824 
825 /**
826  * Some events are ignored for purpose; and need not be interpreted as
827  * "unhandled events"
828  */
829 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len)
830 {
831 	wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len);
832 }
833 
834 static const struct {
835 	int eventid;
836 	void (*handler)(struct wil6210_priv *wil, int eventid,
837 			void *data, int data_len);
838 } wmi_evt_handlers[] = {
839 	{WMI_READY_EVENTID,		wmi_evt_ready},
840 	{WMI_FW_READY_EVENTID,			wmi_evt_ignore},
841 	{WMI_RX_MGMT_PACKET_EVENTID,	wmi_evt_rx_mgmt},
842 	{WMI_TX_MGMT_PACKET_EVENTID,		wmi_evt_tx_mgmt},
843 	{WMI_SCAN_COMPLETE_EVENTID,	wmi_evt_scan_complete},
844 	{WMI_CONNECT_EVENTID,		wmi_evt_connect},
845 	{WMI_DISCONNECT_EVENTID,	wmi_evt_disconnect},
846 	{WMI_EAPOL_RX_EVENTID,		wmi_evt_eapol_rx},
847 	{WMI_BA_STATUS_EVENTID,		wmi_evt_ba_status},
848 	{WMI_RCP_ADDBA_REQ_EVENTID,	wmi_evt_addba_rx_req},
849 	{WMI_DELBA_EVENTID,		wmi_evt_delba},
850 	{WMI_VRING_EN_EVENTID,		wmi_evt_vring_en},
851 	{WMI_DATA_PORT_OPEN_EVENTID,		wmi_evt_ignore},
852 };
853 
854 /*
855  * Run in IRQ context
856  * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
857  * that will be eventually handled by the @wmi_event_worker in the thread
858  * context of thread "wil6210_wmi"
859  */
860 void wmi_recv_cmd(struct wil6210_priv *wil)
861 {
862 	struct wil6210_mbox_ring_desc d_tail;
863 	struct wil6210_mbox_hdr hdr;
864 	struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
865 	struct pending_wmi_event *evt;
866 	u8 *cmd;
867 	void __iomem *src;
868 	ulong flags;
869 	unsigned n;
870 	unsigned int num_immed_reply = 0;
871 
872 	if (!test_bit(wil_status_mbox_ready, wil->status)) {
873 		wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
874 		return;
875 	}
876 
877 	if (test_bit(wil_status_suspended, wil->status)) {
878 		wil_err(wil, "suspended. cannot handle WMI event\n");
879 		return;
880 	}
881 
882 	for (n = 0;; n++) {
883 		u16 len;
884 		bool q;
885 		bool immed_reply = false;
886 
887 		r->head = wil_r(wil, RGF_MBOX +
888 				offsetof(struct wil6210_mbox_ctl, rx.head));
889 		if (r->tail == r->head)
890 			break;
891 
892 		wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
893 			    r->head, r->tail);
894 		/* read cmd descriptor from tail */
895 		wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
896 				     sizeof(struct wil6210_mbox_ring_desc));
897 		if (d_tail.sync == 0) {
898 			wil_err(wil, "Mbox evt not owned by FW?\n");
899 			break;
900 		}
901 
902 		/* read cmd header from descriptor */
903 		if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
904 			wil_err(wil, "Mbox evt at 0x%08x?\n",
905 				le32_to_cpu(d_tail.addr));
906 			break;
907 		}
908 		len = le16_to_cpu(hdr.len);
909 		wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
910 			    le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
911 			    hdr.flags);
912 
913 		/* read cmd buffer from descriptor */
914 		src = wmi_buffer(wil, d_tail.addr) +
915 		      sizeof(struct wil6210_mbox_hdr);
916 		evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
917 					     event.wmi) + len, 4),
918 			      GFP_KERNEL);
919 		if (!evt)
920 			break;
921 
922 		evt->event.hdr = hdr;
923 		cmd = (void *)&evt->event.wmi;
924 		wil_memcpy_fromio_32(cmd, src, len);
925 		/* mark entry as empty */
926 		wil_w(wil, r->tail +
927 		      offsetof(struct wil6210_mbox_ring_desc, sync), 0);
928 		/* indicate */
929 		if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
930 		    (len >= sizeof(struct wmi_cmd_hdr))) {
931 			struct wmi_cmd_hdr *wmi = &evt->event.wmi;
932 			u16 id = le16_to_cpu(wmi->command_id);
933 			u32 tstamp = le32_to_cpu(wmi->fw_timestamp);
934 			if (test_bit(wil_status_resuming, wil->status)) {
935 				if (id == WMI_TRAFFIC_RESUME_EVENTID)
936 					clear_bit(wil_status_resuming,
937 						  wil->status);
938 				else
939 					wil_err(wil,
940 						"WMI evt %d while resuming\n",
941 						id);
942 			}
943 			spin_lock_irqsave(&wil->wmi_ev_lock, flags);
944 			if (wil->reply_id && wil->reply_id == id) {
945 				if (wil->reply_buf) {
946 					memcpy(wil->reply_buf, wmi,
947 					       min(len, wil->reply_size));
948 					immed_reply = true;
949 				}
950 				if (id == WMI_TRAFFIC_SUSPEND_EVENTID) {
951 					wil_dbg_wmi(wil,
952 						    "set suspend_resp_rcvd\n");
953 					wil->suspend_resp_rcvd = true;
954 				}
955 			}
956 			spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
957 
958 			wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
959 				    id, wmi->mid, tstamp);
960 			trace_wil6210_wmi_event(wmi, &wmi[1],
961 						len - sizeof(*wmi));
962 		}
963 		wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
964 				 &evt->event.hdr, sizeof(hdr) + len, true);
965 
966 		/* advance tail */
967 		r->tail = r->base + ((r->tail - r->base +
968 			  sizeof(struct wil6210_mbox_ring_desc)) % r->size);
969 		wil_w(wil, RGF_MBOX +
970 		      offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail);
971 
972 		if (immed_reply) {
973 			wil_dbg_wmi(wil, "recv_cmd: Complete WMI 0x%04x\n",
974 				    wil->reply_id);
975 			kfree(evt);
976 			num_immed_reply++;
977 			complete(&wil->wmi_call);
978 		} else {
979 			/* add to the pending list */
980 			spin_lock_irqsave(&wil->wmi_ev_lock, flags);
981 			list_add_tail(&evt->list, &wil->pending_wmi_ev);
982 			spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
983 			q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
984 			wil_dbg_wmi(wil, "queue_work -> %d\n", q);
985 		}
986 	}
987 	/* normally, 1 event per IRQ should be processed */
988 	wil_dbg_wmi(wil, "recv_cmd: -> %d events queued, %d completed\n",
989 		    n - num_immed_reply, num_immed_reply);
990 }
991 
992 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
993 	     u16 reply_id, void *reply, u8 reply_size, int to_msec)
994 {
995 	int rc;
996 	unsigned long remain;
997 
998 	mutex_lock(&wil->wmi_mutex);
999 
1000 	spin_lock(&wil->wmi_ev_lock);
1001 	wil->reply_id = reply_id;
1002 	wil->reply_buf = reply;
1003 	wil->reply_size = reply_size;
1004 	reinit_completion(&wil->wmi_call);
1005 	spin_unlock(&wil->wmi_ev_lock);
1006 
1007 	rc = __wmi_send(wil, cmdid, buf, len);
1008 	if (rc)
1009 		goto out;
1010 
1011 	remain = wait_for_completion_timeout(&wil->wmi_call,
1012 					     msecs_to_jiffies(to_msec));
1013 	if (0 == remain) {
1014 		wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
1015 			cmdid, reply_id, to_msec);
1016 		rc = -ETIME;
1017 	} else {
1018 		wil_dbg_wmi(wil,
1019 			    "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
1020 			    cmdid, reply_id,
1021 			    to_msec - jiffies_to_msecs(remain));
1022 	}
1023 
1024 out:
1025 	spin_lock(&wil->wmi_ev_lock);
1026 	wil->reply_id = 0;
1027 	wil->reply_buf = NULL;
1028 	wil->reply_size = 0;
1029 	spin_unlock(&wil->wmi_ev_lock);
1030 
1031 	mutex_unlock(&wil->wmi_mutex);
1032 
1033 	return rc;
1034 }
1035 
1036 int wmi_echo(struct wil6210_priv *wil)
1037 {
1038 	struct wmi_echo_cmd cmd = {
1039 		.value = cpu_to_le32(0x12345678),
1040 	};
1041 
1042 	return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
1043 			WMI_ECHO_RSP_EVENTID, NULL, 0, 50);
1044 }
1045 
1046 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
1047 {
1048 	struct wmi_set_mac_address_cmd cmd;
1049 
1050 	ether_addr_copy(cmd.mac, addr);
1051 
1052 	wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
1053 
1054 	return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
1055 }
1056 
1057 int wmi_led_cfg(struct wil6210_priv *wil, bool enable)
1058 {
1059 	int rc = 0;
1060 	struct wmi_led_cfg_cmd cmd = {
1061 		.led_mode = enable,
1062 		.id = led_id,
1063 		.slow_blink_cfg.blink_on =
1064 			cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].on_ms),
1065 		.slow_blink_cfg.blink_off =
1066 			cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].off_ms),
1067 		.medium_blink_cfg.blink_on =
1068 			cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].on_ms),
1069 		.medium_blink_cfg.blink_off =
1070 			cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].off_ms),
1071 		.fast_blink_cfg.blink_on =
1072 			cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].on_ms),
1073 		.fast_blink_cfg.blink_off =
1074 			cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].off_ms),
1075 		.led_polarity = led_polarity,
1076 	};
1077 	struct {
1078 		struct wmi_cmd_hdr wmi;
1079 		struct wmi_led_cfg_done_event evt;
1080 	} __packed reply;
1081 
1082 	if (led_id == WIL_LED_INVALID_ID)
1083 		goto out;
1084 
1085 	if (led_id > WIL_LED_MAX_ID) {
1086 		wil_err(wil, "Invalid led id %d\n", led_id);
1087 		rc = -EINVAL;
1088 		goto out;
1089 	}
1090 
1091 	wil_dbg_wmi(wil,
1092 		    "%s led %d\n",
1093 		    enable ? "enabling" : "disabling", led_id);
1094 
1095 	rc = wmi_call(wil, WMI_LED_CFG_CMDID, &cmd, sizeof(cmd),
1096 		      WMI_LED_CFG_DONE_EVENTID, &reply, sizeof(reply),
1097 		      100);
1098 	if (rc)
1099 		goto out;
1100 
1101 	if (reply.evt.status) {
1102 		wil_err(wil, "led %d cfg failed with status %d\n",
1103 			led_id, le32_to_cpu(reply.evt.status));
1104 		rc = -EINVAL;
1105 	}
1106 
1107 out:
1108 	return rc;
1109 }
1110 
1111 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype,
1112 		  u8 chan, u8 hidden_ssid, u8 is_go)
1113 {
1114 	int rc;
1115 
1116 	struct wmi_pcp_start_cmd cmd = {
1117 		.bcon_interval = cpu_to_le16(bi),
1118 		.network_type = wmi_nettype,
1119 		.disable_sec_offload = 1,
1120 		.channel = chan - 1,
1121 		.pcp_max_assoc_sta = max_assoc_sta,
1122 		.hidden_ssid = hidden_ssid,
1123 		.is_go = is_go,
1124 		.disable_ap_sme = disable_ap_sme,
1125 		.abft_len = wil->abft_len,
1126 	};
1127 	struct {
1128 		struct wmi_cmd_hdr wmi;
1129 		struct wmi_pcp_started_event evt;
1130 	} __packed reply;
1131 
1132 	if (!wil->privacy)
1133 		cmd.disable_sec = 1;
1134 
1135 	if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
1136 	    (cmd.pcp_max_assoc_sta <= 0)) {
1137 		wil_info(wil,
1138 			 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
1139 			 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
1140 		cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
1141 	}
1142 
1143 	if (disable_ap_sme &&
1144 	    !test_bit(WMI_FW_CAPABILITY_DISABLE_AP_SME,
1145 		      wil->fw_capabilities)) {
1146 		wil_err(wil, "disable_ap_sme not supported by FW\n");
1147 		return -EOPNOTSUPP;
1148 	}
1149 
1150 	/*
1151 	 * Processing time may be huge, in case of secure AP it takes about
1152 	 * 3500ms for FW to start AP
1153 	 */
1154 	rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
1155 		      WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
1156 	if (rc)
1157 		return rc;
1158 
1159 	if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
1160 		rc = -EINVAL;
1161 
1162 	if (wmi_nettype != WMI_NETTYPE_P2P)
1163 		/* Don't fail due to error in the led configuration */
1164 		wmi_led_cfg(wil, true);
1165 
1166 	return rc;
1167 }
1168 
1169 int wmi_pcp_stop(struct wil6210_priv *wil)
1170 {
1171 	int rc;
1172 
1173 	rc = wmi_led_cfg(wil, false);
1174 	if (rc)
1175 		return rc;
1176 
1177 	return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
1178 			WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
1179 }
1180 
1181 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
1182 {
1183 	struct wmi_set_ssid_cmd cmd = {
1184 		.ssid_len = cpu_to_le32(ssid_len),
1185 	};
1186 
1187 	if (ssid_len > sizeof(cmd.ssid))
1188 		return -EINVAL;
1189 
1190 	memcpy(cmd.ssid, ssid, ssid_len);
1191 
1192 	return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
1193 }
1194 
1195 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
1196 {
1197 	int rc;
1198 	struct {
1199 		struct wmi_cmd_hdr wmi;
1200 		struct wmi_set_ssid_cmd cmd;
1201 	} __packed reply;
1202 	int len; /* reply.cmd.ssid_len in CPU order */
1203 
1204 	rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
1205 		      &reply, sizeof(reply), 20);
1206 	if (rc)
1207 		return rc;
1208 
1209 	len = le32_to_cpu(reply.cmd.ssid_len);
1210 	if (len > sizeof(reply.cmd.ssid))
1211 		return -EINVAL;
1212 
1213 	*ssid_len = len;
1214 	memcpy(ssid, reply.cmd.ssid, len);
1215 
1216 	return 0;
1217 }
1218 
1219 int wmi_set_channel(struct wil6210_priv *wil, int channel)
1220 {
1221 	struct wmi_set_pcp_channel_cmd cmd = {
1222 		.channel = channel - 1,
1223 	};
1224 
1225 	return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
1226 }
1227 
1228 int wmi_get_channel(struct wil6210_priv *wil, int *channel)
1229 {
1230 	int rc;
1231 	struct {
1232 		struct wmi_cmd_hdr wmi;
1233 		struct wmi_set_pcp_channel_cmd cmd;
1234 	} __packed reply;
1235 
1236 	rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
1237 		      WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
1238 	if (rc)
1239 		return rc;
1240 
1241 	if (reply.cmd.channel > 3)
1242 		return -EINVAL;
1243 
1244 	*channel = reply.cmd.channel + 1;
1245 
1246 	return 0;
1247 }
1248 
1249 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel, int bi)
1250 {
1251 	int rc;
1252 	struct wmi_p2p_cfg_cmd cmd = {
1253 		.discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER,
1254 		.bcon_interval = cpu_to_le16(bi),
1255 		.channel = channel - 1,
1256 	};
1257 	struct {
1258 		struct wmi_cmd_hdr wmi;
1259 		struct wmi_p2p_cfg_done_event evt;
1260 	} __packed reply;
1261 
1262 	wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n");
1263 
1264 	rc = wmi_call(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd),
1265 		      WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300);
1266 	if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1267 		wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status);
1268 		rc = -EINVAL;
1269 	}
1270 
1271 	return rc;
1272 }
1273 
1274 int wmi_start_listen(struct wil6210_priv *wil)
1275 {
1276 	int rc;
1277 	struct {
1278 		struct wmi_cmd_hdr wmi;
1279 		struct wmi_listen_started_event evt;
1280 	} __packed reply;
1281 
1282 	wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n");
1283 
1284 	rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1285 		      WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300);
1286 	if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1287 		wil_err(wil, "device failed to start listen. status %d\n",
1288 			reply.evt.status);
1289 		rc = -EINVAL;
1290 	}
1291 
1292 	return rc;
1293 }
1294 
1295 int wmi_start_search(struct wil6210_priv *wil)
1296 {
1297 	int rc;
1298 	struct {
1299 		struct wmi_cmd_hdr wmi;
1300 		struct wmi_search_started_event evt;
1301 	} __packed reply;
1302 
1303 	wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n");
1304 
1305 	rc = wmi_call(wil, WMI_START_SEARCH_CMDID, NULL, 0,
1306 		      WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300);
1307 	if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1308 		wil_err(wil, "device failed to start search. status %d\n",
1309 			reply.evt.status);
1310 		rc = -EINVAL;
1311 	}
1312 
1313 	return rc;
1314 }
1315 
1316 int wmi_stop_discovery(struct wil6210_priv *wil)
1317 {
1318 	int rc;
1319 
1320 	wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n");
1321 
1322 	rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1323 		      WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100);
1324 
1325 	if (rc)
1326 		wil_err(wil, "Failed to stop discovery\n");
1327 
1328 	return rc;
1329 }
1330 
1331 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
1332 		       const void *mac_addr, int key_usage)
1333 {
1334 	struct wmi_delete_cipher_key_cmd cmd = {
1335 		.key_index = key_index,
1336 	};
1337 
1338 	if (mac_addr)
1339 		memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1340 
1341 	return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1342 }
1343 
1344 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
1345 		       const void *mac_addr, int key_len, const void *key,
1346 		       int key_usage)
1347 {
1348 	struct wmi_add_cipher_key_cmd cmd = {
1349 		.key_index = key_index,
1350 		.key_usage = key_usage,
1351 		.key_len = key_len,
1352 	};
1353 
1354 	if (!key || (key_len > sizeof(cmd.key)))
1355 		return -EINVAL;
1356 
1357 	memcpy(cmd.key, key, key_len);
1358 	if (mac_addr)
1359 		memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1360 
1361 	return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1362 }
1363 
1364 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
1365 {
1366 	static const char *const names[] = {
1367 		[WMI_FRAME_BEACON]	= "BEACON",
1368 		[WMI_FRAME_PROBE_REQ]	= "PROBE_REQ",
1369 		[WMI_FRAME_PROBE_RESP]	= "WMI_FRAME_PROBE_RESP",
1370 		[WMI_FRAME_ASSOC_REQ]	= "WMI_FRAME_ASSOC_REQ",
1371 		[WMI_FRAME_ASSOC_RESP]	= "WMI_FRAME_ASSOC_RESP",
1372 	};
1373 	int rc;
1374 	u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
1375 	struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
1376 
1377 	if (!cmd) {
1378 		rc = -ENOMEM;
1379 		goto out;
1380 	}
1381 	if (!ie)
1382 		ie_len = 0;
1383 
1384 	cmd->mgmt_frm_type = type;
1385 	/* BUG: FW API define ieLen as u8. Will fix FW */
1386 	cmd->ie_len = cpu_to_le16(ie_len);
1387 	memcpy(cmd->ie_info, ie, ie_len);
1388 	rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
1389 	kfree(cmd);
1390 out:
1391 	if (rc) {
1392 		const char *name = type < ARRAY_SIZE(names) ?
1393 				   names[type] : "??";
1394 		wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc);
1395 	}
1396 
1397 	return rc;
1398 }
1399 
1400 /**
1401  * wmi_rxon - turn radio on/off
1402  * @on:		turn on if true, off otherwise
1403  *
1404  * Only switch radio. Channel should be set separately.
1405  * No timeout for rxon - radio turned on forever unless some other call
1406  * turns it off
1407  */
1408 int wmi_rxon(struct wil6210_priv *wil, bool on)
1409 {
1410 	int rc;
1411 	struct {
1412 		struct wmi_cmd_hdr wmi;
1413 		struct wmi_listen_started_event evt;
1414 	} __packed reply;
1415 
1416 	wil_info(wil, "(%s)\n", on ? "on" : "off");
1417 
1418 	if (on) {
1419 		rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1420 			      WMI_LISTEN_STARTED_EVENTID,
1421 			      &reply, sizeof(reply), 100);
1422 		if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1423 			rc = -EINVAL;
1424 	} else {
1425 		rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1426 			      WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1427 	}
1428 
1429 	return rc;
1430 }
1431 
1432 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1433 {
1434 	struct wireless_dev *wdev = wil->wdev;
1435 	struct net_device *ndev = wil_to_ndev(wil);
1436 	struct wmi_cfg_rx_chain_cmd cmd = {
1437 		.action = WMI_RX_CHAIN_ADD,
1438 		.rx_sw_ring = {
1439 			.max_mpdu_size = cpu_to_le16(
1440 				wil_mtu2macbuf(wil->rx_buf_len)),
1441 			.ring_mem_base = cpu_to_le64(vring->pa),
1442 			.ring_size = cpu_to_le16(vring->size),
1443 		},
1444 		.mid = 0, /* TODO - what is it? */
1445 		.decap_trans_type = WMI_DECAP_TYPE_802_3,
1446 		.reorder_type = WMI_RX_SW_REORDER,
1447 		.host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh),
1448 	};
1449 	struct {
1450 		struct wmi_cmd_hdr wmi;
1451 		struct wmi_cfg_rx_chain_done_event evt;
1452 	} __packed evt;
1453 	int rc;
1454 
1455 	if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1456 		struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1457 
1458 		cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1459 		if (ch)
1460 			cmd.sniffer_cfg.channel = ch->hw_value - 1;
1461 		cmd.sniffer_cfg.phy_info_mode =
1462 			cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1463 		cmd.sniffer_cfg.phy_support =
1464 			cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
1465 				    ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS);
1466 	} else {
1467 		/* Initialize offload (in non-sniffer mode).
1468 		 * Linux IP stack always calculates IP checksum
1469 		 * HW always calculate TCP/UDP checksum
1470 		 */
1471 		cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
1472 	}
1473 
1474 	if (rx_align_2)
1475 		cmd.l2_802_3_offload_ctrl |=
1476 				L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK;
1477 
1478 	/* typical time for secure PCP is 840ms */
1479 	rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1480 		      WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1481 	if (rc)
1482 		return rc;
1483 
1484 	vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1485 
1486 	wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
1487 		     le32_to_cpu(evt.evt.status), vring->hwtail);
1488 
1489 	if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1490 		rc = -EINVAL;
1491 
1492 	return rc;
1493 }
1494 
1495 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
1496 {
1497 	int rc;
1498 	struct wmi_temp_sense_cmd cmd = {
1499 		.measure_baseband_en = cpu_to_le32(!!t_bb),
1500 		.measure_rf_en = cpu_to_le32(!!t_rf),
1501 		.measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW),
1502 	};
1503 	struct {
1504 		struct wmi_cmd_hdr wmi;
1505 		struct wmi_temp_sense_done_event evt;
1506 	} __packed reply;
1507 
1508 	rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1509 		      WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1510 	if (rc)
1511 		return rc;
1512 
1513 	if (t_bb)
1514 		*t_bb = le32_to_cpu(reply.evt.baseband_t1000);
1515 	if (t_rf)
1516 		*t_rf = le32_to_cpu(reply.evt.rf_t1000);
1517 
1518 	return 0;
1519 }
1520 
1521 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac,
1522 		       u16 reason, bool full_disconnect, bool del_sta)
1523 {
1524 	int rc;
1525 	u16 reason_code;
1526 	struct wmi_disconnect_sta_cmd disc_sta_cmd = {
1527 		.disconnect_reason = cpu_to_le16(reason),
1528 	};
1529 	struct wmi_del_sta_cmd del_sta_cmd = {
1530 		.disconnect_reason = cpu_to_le16(reason),
1531 	};
1532 	struct {
1533 		struct wmi_cmd_hdr wmi;
1534 		struct wmi_disconnect_event evt;
1535 	} __packed reply;
1536 
1537 	wil_dbg_wmi(wil, "disconnect_sta: (%pM, reason %d)\n", mac, reason);
1538 
1539 	wil->locally_generated_disc = true;
1540 	if (del_sta) {
1541 		ether_addr_copy(del_sta_cmd.dst_mac, mac);
1542 		rc = wmi_call(wil, WMI_DEL_STA_CMDID, &del_sta_cmd,
1543 			      sizeof(del_sta_cmd), WMI_DISCONNECT_EVENTID,
1544 			      &reply, sizeof(reply), 1000);
1545 	} else {
1546 		ether_addr_copy(disc_sta_cmd.dst_mac, mac);
1547 		rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &disc_sta_cmd,
1548 			      sizeof(disc_sta_cmd), WMI_DISCONNECT_EVENTID,
1549 			      &reply, sizeof(reply), 1000);
1550 	}
1551 	/* failure to disconnect in reasonable time treated as FW error */
1552 	if (rc) {
1553 		wil_fw_error_recovery(wil);
1554 		return rc;
1555 	}
1556 
1557 	if (full_disconnect) {
1558 		/* call event handler manually after processing wmi_call,
1559 		 * to avoid deadlock - disconnect event handler acquires
1560 		 * wil->mutex while it is already held here
1561 		 */
1562 		reason_code = le16_to_cpu(reply.evt.protocol_reason_status);
1563 
1564 		wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
1565 			    reply.evt.bssid, reason_code,
1566 			    reply.evt.disconnect_reason);
1567 
1568 		wil->sinfo_gen++;
1569 		wil6210_disconnect(wil, reply.evt.bssid, reason_code, true);
1570 	}
1571 	return 0;
1572 }
1573 
1574 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)
1575 {
1576 	struct wmi_vring_ba_en_cmd cmd = {
1577 		.ringid = ringid,
1578 		.agg_max_wsize = size,
1579 		.ba_timeout = cpu_to_le16(timeout),
1580 		.amsdu = 0,
1581 	};
1582 
1583 	wil_dbg_wmi(wil, "addba: (ring %d size %d timeout %d)\n", ringid, size,
1584 		    timeout);
1585 
1586 	return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd));
1587 }
1588 
1589 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason)
1590 {
1591 	struct wmi_vring_ba_dis_cmd cmd = {
1592 		.ringid = ringid,
1593 		.reason = cpu_to_le16(reason),
1594 	};
1595 
1596 	wil_dbg_wmi(wil, "delba_tx: (ring %d reason %d)\n", ringid, reason);
1597 
1598 	return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd));
1599 }
1600 
1601 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason)
1602 {
1603 	struct wmi_rcp_delba_cmd cmd = {
1604 		.cidxtid = cidxtid,
1605 		.reason = cpu_to_le16(reason),
1606 	};
1607 
1608 	wil_dbg_wmi(wil, "delba_rx: (CID %d TID %d reason %d)\n", cidxtid & 0xf,
1609 		    (cidxtid >> 4) & 0xf, reason);
1610 
1611 	return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd));
1612 }
1613 
1614 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
1615 		      u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
1616 {
1617 	int rc;
1618 	struct wmi_rcp_addba_resp_cmd cmd = {
1619 		.cidxtid = mk_cidxtid(cid, tid),
1620 		.dialog_token = token,
1621 		.status_code = cpu_to_le16(status),
1622 		/* bit 0: A-MSDU supported
1623 		 * bit 1: policy (should be 0 for us)
1624 		 * bits 2..5: TID
1625 		 * bits 6..15: buffer size
1626 		 */
1627 		.ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
1628 					    (agg_wsize << 6)),
1629 		.ba_timeout = cpu_to_le16(timeout),
1630 	};
1631 	struct {
1632 		struct wmi_cmd_hdr wmi;
1633 		struct wmi_rcp_addba_resp_sent_event evt;
1634 	} __packed reply;
1635 
1636 	wil_dbg_wmi(wil,
1637 		    "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
1638 		    cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-");
1639 
1640 	rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd),
1641 		      WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply),
1642 		      100);
1643 	if (rc)
1644 		return rc;
1645 
1646 	if (reply.evt.status) {
1647 		wil_err(wil, "ADDBA response failed with status %d\n",
1648 			le16_to_cpu(reply.evt.status));
1649 		rc = -EINVAL;
1650 	}
1651 
1652 	return rc;
1653 }
1654 
1655 int wmi_ps_dev_profile_cfg(struct wil6210_priv *wil,
1656 			   enum wmi_ps_profile_type ps_profile)
1657 {
1658 	int rc;
1659 	struct wmi_ps_dev_profile_cfg_cmd cmd = {
1660 		.ps_profile = ps_profile,
1661 	};
1662 	struct {
1663 		struct wmi_cmd_hdr wmi;
1664 		struct wmi_ps_dev_profile_cfg_event evt;
1665 	} __packed reply;
1666 	u32 status;
1667 
1668 	wil_dbg_wmi(wil, "Setting ps dev profile %d\n", ps_profile);
1669 
1670 	reply.evt.status = cpu_to_le32(WMI_PS_CFG_CMD_STATUS_ERROR);
1671 
1672 	rc = wmi_call(wil, WMI_PS_DEV_PROFILE_CFG_CMDID, &cmd, sizeof(cmd),
1673 		      WMI_PS_DEV_PROFILE_CFG_EVENTID, &reply, sizeof(reply),
1674 		      100);
1675 	if (rc)
1676 		return rc;
1677 
1678 	status = le32_to_cpu(reply.evt.status);
1679 
1680 	if (status != WMI_PS_CFG_CMD_STATUS_SUCCESS) {
1681 		wil_err(wil, "ps dev profile cfg failed with status %d\n",
1682 			status);
1683 		rc = -EINVAL;
1684 	}
1685 
1686 	return rc;
1687 }
1688 
1689 int wmi_set_mgmt_retry(struct wil6210_priv *wil, u8 retry_short)
1690 {
1691 	int rc;
1692 	struct wmi_set_mgmt_retry_limit_cmd cmd = {
1693 		.mgmt_retry_limit = retry_short,
1694 	};
1695 	struct {
1696 		struct wmi_cmd_hdr wmi;
1697 		struct wmi_set_mgmt_retry_limit_event evt;
1698 	} __packed reply;
1699 
1700 	wil_dbg_wmi(wil, "Setting mgmt retry short %d\n", retry_short);
1701 
1702 	if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities))
1703 		return -ENOTSUPP;
1704 
1705 	reply.evt.status = WMI_FW_STATUS_FAILURE;
1706 
1707 	rc = wmi_call(wil, WMI_SET_MGMT_RETRY_LIMIT_CMDID, &cmd, sizeof(cmd),
1708 		      WMI_SET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply),
1709 		      100);
1710 	if (rc)
1711 		return rc;
1712 
1713 	if (reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1714 		wil_err(wil, "set mgmt retry limit failed with status %d\n",
1715 			reply.evt.status);
1716 		rc = -EINVAL;
1717 	}
1718 
1719 	return rc;
1720 }
1721 
1722 int wmi_get_mgmt_retry(struct wil6210_priv *wil, u8 *retry_short)
1723 {
1724 	int rc;
1725 	struct {
1726 		struct wmi_cmd_hdr wmi;
1727 		struct wmi_get_mgmt_retry_limit_event evt;
1728 	} __packed reply;
1729 
1730 	wil_dbg_wmi(wil, "getting mgmt retry short\n");
1731 
1732 	if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities))
1733 		return -ENOTSUPP;
1734 
1735 	reply.evt.mgmt_retry_limit = 0;
1736 	rc = wmi_call(wil, WMI_GET_MGMT_RETRY_LIMIT_CMDID, NULL, 0,
1737 		      WMI_GET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply),
1738 		      100);
1739 	if (rc)
1740 		return rc;
1741 
1742 	if (retry_short)
1743 		*retry_short = reply.evt.mgmt_retry_limit;
1744 
1745 	return 0;
1746 }
1747 
1748 int wmi_abort_scan(struct wil6210_priv *wil)
1749 {
1750 	int rc;
1751 
1752 	wil_dbg_wmi(wil, "sending WMI_ABORT_SCAN_CMDID\n");
1753 
1754 	rc = wmi_send(wil, WMI_ABORT_SCAN_CMDID, NULL, 0);
1755 	if (rc)
1756 		wil_err(wil, "Failed to abort scan (%d)\n", rc);
1757 
1758 	return rc;
1759 }
1760 
1761 int wmi_new_sta(struct wil6210_priv *wil, const u8 *mac, u8 aid)
1762 {
1763 	int rc;
1764 	struct wmi_new_sta_cmd cmd = {
1765 		.aid = aid,
1766 	};
1767 
1768 	wil_dbg_wmi(wil, "new sta %pM, aid %d\n", mac, aid);
1769 
1770 	ether_addr_copy(cmd.dst_mac, mac);
1771 
1772 	rc = wmi_send(wil, WMI_NEW_STA_CMDID, &cmd, sizeof(cmd));
1773 	if (rc)
1774 		wil_err(wil, "Failed to send new sta (%d)\n", rc);
1775 
1776 	return rc;
1777 }
1778 
1779 void wmi_event_flush(struct wil6210_priv *wil)
1780 {
1781 	ulong flags;
1782 	struct pending_wmi_event *evt, *t;
1783 
1784 	wil_dbg_wmi(wil, "event_flush\n");
1785 
1786 	spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1787 
1788 	list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1789 		list_del(&evt->list);
1790 		kfree(evt);
1791 	}
1792 
1793 	spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1794 }
1795 
1796 int wmi_suspend(struct wil6210_priv *wil)
1797 {
1798 	int rc;
1799 	struct wmi_traffic_suspend_cmd cmd = {
1800 		.wakeup_trigger = wil->wakeup_trigger,
1801 	};
1802 	struct {
1803 		struct wmi_cmd_hdr wmi;
1804 		struct wmi_traffic_suspend_event evt;
1805 	} __packed reply;
1806 	u32 suspend_to = WIL_WAIT_FOR_SUSPEND_RESUME_COMP;
1807 
1808 	wil->suspend_resp_rcvd = false;
1809 	wil->suspend_resp_comp = false;
1810 
1811 	reply.evt.status = WMI_TRAFFIC_SUSPEND_REJECTED;
1812 
1813 	rc = wmi_call(wil, WMI_TRAFFIC_SUSPEND_CMDID, &cmd, sizeof(cmd),
1814 		      WMI_TRAFFIC_SUSPEND_EVENTID, &reply, sizeof(reply),
1815 		      suspend_to);
1816 	if (rc) {
1817 		wil_err(wil, "wmi_call for suspend req failed, rc=%d\n", rc);
1818 		if (rc == -ETIME)
1819 			/* wmi_call TO */
1820 			wil->suspend_stats.rejected_by_device++;
1821 		else
1822 			wil->suspend_stats.rejected_by_host++;
1823 		goto out;
1824 	}
1825 
1826 	wil_dbg_wmi(wil, "waiting for suspend_response_completed\n");
1827 
1828 	rc = wait_event_interruptible_timeout(wil->wq,
1829 					      wil->suspend_resp_comp,
1830 					      msecs_to_jiffies(suspend_to));
1831 	if (rc == 0) {
1832 		wil_err(wil, "TO waiting for suspend_response_completed\n");
1833 		if (wil->suspend_resp_rcvd)
1834 			/* Device responded but we TO due to another reason */
1835 			wil->suspend_stats.rejected_by_host++;
1836 		else
1837 			wil->suspend_stats.rejected_by_device++;
1838 		rc = -EBUSY;
1839 		goto out;
1840 	}
1841 
1842 	wil_dbg_wmi(wil, "suspend_response_completed rcvd\n");
1843 	if (reply.evt.status == WMI_TRAFFIC_SUSPEND_REJECTED) {
1844 		wil_dbg_pm(wil, "device rejected the suspend\n");
1845 		wil->suspend_stats.rejected_by_device++;
1846 	}
1847 	rc = reply.evt.status;
1848 
1849 out:
1850 	wil->suspend_resp_rcvd = false;
1851 	wil->suspend_resp_comp = false;
1852 
1853 	return rc;
1854 }
1855 
1856 int wmi_resume(struct wil6210_priv *wil)
1857 {
1858 	int rc;
1859 	struct {
1860 		struct wmi_cmd_hdr wmi;
1861 		struct wmi_traffic_resume_event evt;
1862 	} __packed reply;
1863 
1864 	reply.evt.status = WMI_TRAFFIC_RESUME_FAILED;
1865 
1866 	rc = wmi_call(wil, WMI_TRAFFIC_RESUME_CMDID, NULL, 0,
1867 		      WMI_TRAFFIC_RESUME_EVENTID, &reply, sizeof(reply),
1868 		      WIL_WAIT_FOR_SUSPEND_RESUME_COMP);
1869 	if (rc)
1870 		return rc;
1871 
1872 	return reply.evt.status;
1873 }
1874 
1875 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1876 				 void *d, int len)
1877 {
1878 	uint i;
1879 
1880 	for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1881 		if (wmi_evt_handlers[i].eventid == id) {
1882 			wmi_evt_handlers[i].handler(wil, id, d, len);
1883 			return true;
1884 		}
1885 	}
1886 
1887 	return false;
1888 }
1889 
1890 static void wmi_event_handle(struct wil6210_priv *wil,
1891 			     struct wil6210_mbox_hdr *hdr)
1892 {
1893 	u16 len = le16_to_cpu(hdr->len);
1894 
1895 	if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
1896 	    (len >= sizeof(struct wmi_cmd_hdr))) {
1897 		struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]);
1898 		void *evt_data = (void *)(&wmi[1]);
1899 		u16 id = le16_to_cpu(wmi->command_id);
1900 
1901 		wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1902 			    id, wil->reply_id);
1903 		/* check if someone waits for this event */
1904 		if (wil->reply_id && wil->reply_id == id) {
1905 			WARN_ON(wil->reply_buf);
1906 			wmi_evt_call_handler(wil, id, evt_data,
1907 					     len - sizeof(*wmi));
1908 			wil_dbg_wmi(wil, "event_handle: Complete WMI 0x%04x\n",
1909 				    id);
1910 			complete(&wil->wmi_call);
1911 			return;
1912 		}
1913 		/* unsolicited event */
1914 		/* search for handler */
1915 		if (!wmi_evt_call_handler(wil, id, evt_data,
1916 					  len - sizeof(*wmi))) {
1917 			wil_info(wil, "Unhandled event 0x%04x\n", id);
1918 		}
1919 	} else {
1920 		wil_err(wil, "Unknown event type\n");
1921 		print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1922 			       hdr, sizeof(*hdr) + len, true);
1923 	}
1924 }
1925 
1926 /*
1927  * Retrieve next WMI event from the pending list
1928  */
1929 static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1930 {
1931 	ulong flags;
1932 	struct list_head *ret = NULL;
1933 
1934 	spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1935 
1936 	if (!list_empty(&wil->pending_wmi_ev)) {
1937 		ret = wil->pending_wmi_ev.next;
1938 		list_del(ret);
1939 	}
1940 
1941 	spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1942 
1943 	return ret;
1944 }
1945 
1946 /*
1947  * Handler for the WMI events
1948  */
1949 void wmi_event_worker(struct work_struct *work)
1950 {
1951 	struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1952 						 wmi_event_worker);
1953 	struct pending_wmi_event *evt;
1954 	struct list_head *lh;
1955 
1956 	wil_dbg_wmi(wil, "event_worker: Start\n");
1957 	while ((lh = next_wmi_ev(wil)) != NULL) {
1958 		evt = list_entry(lh, struct pending_wmi_event, list);
1959 		wmi_event_handle(wil, &evt->event.hdr);
1960 		kfree(evt);
1961 	}
1962 	wil_dbg_wmi(wil, "event_worker: Finished\n");
1963 }
1964 
1965 bool wil_is_wmi_idle(struct wil6210_priv *wil)
1966 {
1967 	ulong flags;
1968 	struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
1969 	bool rc = false;
1970 
1971 	spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1972 
1973 	/* Check if there are pending WMI events in the events queue */
1974 	if (!list_empty(&wil->pending_wmi_ev)) {
1975 		wil_dbg_pm(wil, "Pending WMI events in queue\n");
1976 		goto out;
1977 	}
1978 
1979 	/* Check if there is a pending WMI call */
1980 	if (wil->reply_id) {
1981 		wil_dbg_pm(wil, "Pending WMI call\n");
1982 		goto out;
1983 	}
1984 
1985 	/* Check if there are pending RX events in mbox */
1986 	r->head = wil_r(wil, RGF_MBOX +
1987 			offsetof(struct wil6210_mbox_ctl, rx.head));
1988 	if (r->tail != r->head)
1989 		wil_dbg_pm(wil, "Pending WMI mbox events\n");
1990 	else
1991 		rc = true;
1992 
1993 out:
1994 	spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1995 	return rc;
1996 }
1997