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[mirror_ubuntu-bionic-kernel.git] / drivers / net / wireless / ath / wil6210 / wmi.c
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 if (test_bit(WMI_FW_CAPABILITY_RSSI_REPORTING, wil->fw_capabilities))
385 signal = 100 * data->info.rssi;
386 else
387 signal = data->info.sqi;
388 d_status = le16_to_cpu(data->info.status);
389 fc = rx_mgmt_frame->frame_control;
390
391 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d RSSI %d SQI %d%%\n",
392 data->info.channel, data->info.mcs, data->info.rssi,
393 data->info.sqi);
394 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
395 le16_to_cpu(fc));
396 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
397 data->info.qid, data->info.mid, data->info.cid);
398 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame,
399 d_len, true);
400
401 if (!channel) {
402 wil_err(wil, "Frame on unsupported channel\n");
403 return;
404 }
405
406 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
407 struct cfg80211_bss *bss;
408 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
409 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
410 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
411 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
412 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
413 u.beacon.variable);
414 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
415 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
416 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
417 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
418 ie_len, true);
419
420 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
421
422 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
423 d_len, signal, GFP_KERNEL);
424 if (bss) {
425 wil_dbg_wmi(wil, "Added BSS %pM\n",
426 rx_mgmt_frame->bssid);
427 cfg80211_put_bss(wiphy, bss);
428 } else {
429 wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
430 }
431 } else {
432 mutex_lock(&wil->p2p_wdev_mutex);
433 cfg80211_rx_mgmt(wil->radio_wdev, freq, signal,
434 (void *)rx_mgmt_frame, d_len, 0);
435 mutex_unlock(&wil->p2p_wdev_mutex);
436 }
437 }
438
439 static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
440 {
441 struct wmi_tx_mgmt_packet_event *data = d;
442 struct ieee80211_mgmt *mgmt_frame =
443 (struct ieee80211_mgmt *)data->payload;
444 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload);
445
446 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame,
447 flen, true);
448 }
449
450 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
451 void *d, int len)
452 {
453 mutex_lock(&wil->p2p_wdev_mutex);
454 if (wil->scan_request) {
455 struct wmi_scan_complete_event *data = d;
456 int status = le32_to_cpu(data->status);
457 struct cfg80211_scan_info info = {
458 .aborted = ((status != WMI_SCAN_SUCCESS) &&
459 (status != WMI_SCAN_ABORT_REJECTED)),
460 };
461
462 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", status);
463 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
464 wil->scan_request, info.aborted);
465 del_timer_sync(&wil->scan_timer);
466 cfg80211_scan_done(wil->scan_request, &info);
467 wil->radio_wdev = wil->wdev;
468 wil->scan_request = NULL;
469 wake_up_interruptible(&wil->wq);
470 if (wil->p2p.pending_listen_wdev) {
471 wil_dbg_misc(wil, "Scheduling delayed listen\n");
472 schedule_work(&wil->p2p.delayed_listen_work);
473 }
474 } else {
475 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
476 }
477 mutex_unlock(&wil->p2p_wdev_mutex);
478 }
479
480 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
481 {
482 struct net_device *ndev = wil_to_ndev(wil);
483 struct wireless_dev *wdev = wil->wdev;
484 struct wmi_connect_event *evt = d;
485 int ch; /* channel number */
486 struct station_info sinfo;
487 u8 *assoc_req_ie, *assoc_resp_ie;
488 size_t assoc_req_ielen, assoc_resp_ielen;
489 /* capinfo(u16) + listen_interval(u16) + IEs */
490 const size_t assoc_req_ie_offset = sizeof(u16) * 2;
491 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
492 const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
493 int rc;
494
495 if (len < sizeof(*evt)) {
496 wil_err(wil, "Connect event too short : %d bytes\n", len);
497 return;
498 }
499 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
500 evt->assoc_resp_len) {
501 wil_err(wil,
502 "Connect event corrupted : %d != %d + %d + %d + %d\n",
503 len, (int)sizeof(*evt), evt->beacon_ie_len,
504 evt->assoc_req_len, evt->assoc_resp_len);
505 return;
506 }
507 if (evt->cid >= WIL6210_MAX_CID) {
508 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
509 return;
510 }
511
512 ch = evt->channel + 1;
513 wil_info(wil, "Connect %pM channel [%d] cid %d aid %d\n",
514 evt->bssid, ch, evt->cid, evt->aid);
515 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
516 evt->assoc_info, len - sizeof(*evt), true);
517
518 /* figure out IE's */
519 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
520 assoc_req_ie_offset];
521 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
522 if (evt->assoc_req_len <= assoc_req_ie_offset) {
523 assoc_req_ie = NULL;
524 assoc_req_ielen = 0;
525 }
526
527 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
528 evt->assoc_req_len +
529 assoc_resp_ie_offset];
530 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
531 if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
532 assoc_resp_ie = NULL;
533 assoc_resp_ielen = 0;
534 }
535
536 if (test_bit(wil_status_resetting, wil->status) ||
537 !test_bit(wil_status_fwready, wil->status)) {
538 wil_err(wil, "status_resetting, cancel connect event, CID %d\n",
539 evt->cid);
540 /* no need for cleanup, wil_reset will do that */
541 return;
542 }
543
544 mutex_lock(&wil->mutex);
545
546 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
547 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
548 if (!test_bit(wil_status_fwconnecting, wil->status)) {
549 wil_err(wil, "Not in connecting state\n");
550 mutex_unlock(&wil->mutex);
551 return;
552 }
553 del_timer_sync(&wil->connect_timer);
554 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
555 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
556 if (wil->sta[evt->cid].status != wil_sta_unused) {
557 wil_err(wil, "AP: Invalid status %d for CID %d\n",
558 wil->sta[evt->cid].status, evt->cid);
559 mutex_unlock(&wil->mutex);
560 return;
561 }
562 }
563
564 /* FIXME FW can transmit only ucast frames to peer */
565 /* FIXME real ring_id instead of hard coded 0 */
566 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid);
567 wil->sta[evt->cid].status = wil_sta_conn_pending;
568
569 rc = wil_tx_init(wil, evt->cid);
570 if (rc) {
571 wil_err(wil, "config tx vring failed for CID %d, rc (%d)\n",
572 evt->cid, rc);
573 wmi_disconnect_sta(wil, wil->sta[evt->cid].addr,
574 WLAN_REASON_UNSPECIFIED, false, false);
575 } else {
576 wil_info(wil, "successful connection to CID %d\n", evt->cid);
577 }
578
579 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
580 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
581 if (rc) {
582 netif_carrier_off(ndev);
583 wil6210_bus_request(wil, WIL_DEFAULT_BUS_REQUEST_KBPS);
584 wil_err(wil, "cfg80211_connect_result with failure\n");
585 cfg80211_connect_result(ndev, evt->bssid, NULL, 0,
586 NULL, 0,
587 WLAN_STATUS_UNSPECIFIED_FAILURE,
588 GFP_KERNEL);
589 goto out;
590 } else {
591 struct wiphy *wiphy = wil_to_wiphy(wil);
592
593 cfg80211_ref_bss(wiphy, wil->bss);
594 cfg80211_connect_bss(ndev, evt->bssid, wil->bss,
595 assoc_req_ie, assoc_req_ielen,
596 assoc_resp_ie, assoc_resp_ielen,
597 WLAN_STATUS_SUCCESS, GFP_KERNEL,
598 NL80211_TIMEOUT_UNSPECIFIED);
599 }
600 wil->bss = NULL;
601 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
602 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
603 if (rc) {
604 if (disable_ap_sme)
605 /* notify new_sta has failed */
606 cfg80211_del_sta(ndev, evt->bssid, GFP_KERNEL);
607 goto out;
608 }
609
610 memset(&sinfo, 0, sizeof(sinfo));
611
612 sinfo.generation = wil->sinfo_gen++;
613
614 if (assoc_req_ie) {
615 sinfo.assoc_req_ies = assoc_req_ie;
616 sinfo.assoc_req_ies_len = assoc_req_ielen;
617 }
618
619 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
620 } else {
621 wil_err(wil, "unhandled iftype %d for CID %d\n", wdev->iftype,
622 evt->cid);
623 goto out;
624 }
625
626 wil->sta[evt->cid].status = wil_sta_connected;
627 wil->sta[evt->cid].aid = evt->aid;
628 set_bit(wil_status_fwconnected, wil->status);
629 wil_update_net_queues_bh(wil, NULL, false);
630
631 out:
632 if (rc)
633 wil->sta[evt->cid].status = wil_sta_unused;
634 clear_bit(wil_status_fwconnecting, wil->status);
635 mutex_unlock(&wil->mutex);
636 }
637
638 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
639 void *d, int len)
640 {
641 struct wmi_disconnect_event *evt = d;
642 u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
643
644 wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
645 evt->bssid, reason_code, evt->disconnect_reason);
646
647 wil->sinfo_gen++;
648
649 if (test_bit(wil_status_resetting, wil->status) ||
650 !test_bit(wil_status_fwready, wil->status)) {
651 wil_err(wil, "status_resetting, cancel disconnect event\n");
652 /* no need for cleanup, wil_reset will do that */
653 return;
654 }
655
656 mutex_lock(&wil->mutex);
657 wil6210_disconnect(wil, evt->bssid, reason_code, true);
658 mutex_unlock(&wil->mutex);
659 }
660
661 /*
662 * Firmware reports EAPOL frame using WME event.
663 * Reconstruct Ethernet frame and deliver it via normal Rx
664 */
665 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
666 void *d, int len)
667 {
668 struct net_device *ndev = wil_to_ndev(wil);
669 struct wmi_eapol_rx_event *evt = d;
670 u16 eapol_len = le16_to_cpu(evt->eapol_len);
671 int sz = eapol_len + ETH_HLEN;
672 struct sk_buff *skb;
673 struct ethhdr *eth;
674 int cid;
675 struct wil_net_stats *stats = NULL;
676
677 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
678 evt->src_mac);
679
680 cid = wil_find_cid(wil, evt->src_mac);
681 if (cid >= 0)
682 stats = &wil->sta[cid].stats;
683
684 if (eapol_len > 196) { /* TODO: revisit size limit */
685 wil_err(wil, "EAPOL too large\n");
686 return;
687 }
688
689 skb = alloc_skb(sz, GFP_KERNEL);
690 if (!skb) {
691 wil_err(wil, "Failed to allocate skb\n");
692 return;
693 }
694
695 eth = skb_put(skb, ETH_HLEN);
696 ether_addr_copy(eth->h_dest, ndev->dev_addr);
697 ether_addr_copy(eth->h_source, evt->src_mac);
698 eth->h_proto = cpu_to_be16(ETH_P_PAE);
699 skb_put_data(skb, evt->eapol, eapol_len);
700 skb->protocol = eth_type_trans(skb, ndev);
701 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
702 ndev->stats.rx_packets++;
703 ndev->stats.rx_bytes += sz;
704 if (stats) {
705 stats->rx_packets++;
706 stats->rx_bytes += sz;
707 }
708 } else {
709 ndev->stats.rx_dropped++;
710 if (stats)
711 stats->rx_dropped++;
712 }
713 }
714
715 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len)
716 {
717 struct wmi_vring_en_event *evt = d;
718 u8 vri = evt->vring_index;
719 struct wireless_dev *wdev = wil_to_wdev(wil);
720
721 wil_dbg_wmi(wil, "Enable vring %d\n", vri);
722
723 if (vri >= ARRAY_SIZE(wil->vring_tx)) {
724 wil_err(wil, "Enable for invalid vring %d\n", vri);
725 return;
726 }
727
728 if (wdev->iftype != NL80211_IFTYPE_AP || !disable_ap_sme)
729 /* in AP mode with disable_ap_sme, this is done by
730 * wil_cfg80211_change_station()
731 */
732 wil->vring_tx_data[vri].dot1x_open = true;
733 if (vri == wil->bcast_vring) /* no BA for bcast */
734 return;
735 if (agg_wsize >= 0)
736 wil_addba_tx_request(wil, vri, agg_wsize);
737 }
738
739 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
740 int len)
741 {
742 struct wmi_ba_status_event *evt = d;
743 struct vring_tx_data *txdata;
744
745 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
746 evt->ringid,
747 evt->status == WMI_BA_AGREED ? "OK" : "N/A",
748 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
749 evt->amsdu ? "+" : "-");
750
751 if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
752 wil_err(wil, "invalid ring id %d\n", evt->ringid);
753 return;
754 }
755
756 if (evt->status != WMI_BA_AGREED) {
757 evt->ba_timeout = 0;
758 evt->agg_wsize = 0;
759 evt->amsdu = 0;
760 }
761
762 txdata = &wil->vring_tx_data[evt->ringid];
763
764 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
765 txdata->agg_wsize = evt->agg_wsize;
766 txdata->agg_amsdu = evt->amsdu;
767 txdata->addba_in_progress = false;
768 }
769
770 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
771 int len)
772 {
773 struct wmi_rcp_addba_req_event *evt = d;
774
775 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
776 evt->ba_param_set, evt->ba_timeout,
777 evt->ba_seq_ctrl);
778 }
779
780 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
781 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
782 {
783 struct wmi_delba_event *evt = d;
784 u8 cid, tid;
785 u16 reason = __le16_to_cpu(evt->reason);
786 struct wil_sta_info *sta;
787 struct wil_tid_ampdu_rx *r;
788
789 might_sleep();
790 parse_cidxtid(evt->cidxtid, &cid, &tid);
791 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
792 cid, tid,
793 evt->from_initiator ? "originator" : "recipient",
794 reason);
795 if (!evt->from_initiator) {
796 int i;
797 /* find Tx vring it belongs to */
798 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
799 if ((wil->vring2cid_tid[i][0] == cid) &&
800 (wil->vring2cid_tid[i][1] == tid)) {
801 struct vring_tx_data *txdata =
802 &wil->vring_tx_data[i];
803
804 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
805 txdata->agg_timeout = 0;
806 txdata->agg_wsize = 0;
807 txdata->addba_in_progress = false;
808
809 break; /* max. 1 matching ring */
810 }
811 }
812 if (i >= ARRAY_SIZE(wil->vring2cid_tid))
813 wil_err(wil, "DELBA: unable to find Tx vring\n");
814 return;
815 }
816
817 sta = &wil->sta[cid];
818
819 spin_lock_bh(&sta->tid_rx_lock);
820
821 r = sta->tid_rx[tid];
822 sta->tid_rx[tid] = NULL;
823 wil_tid_ampdu_rx_free(wil, r);
824
825 spin_unlock_bh(&sta->tid_rx_lock);
826 }
827
828 /**
829 * Some events are ignored for purpose; and need not be interpreted as
830 * "unhandled events"
831 */
832 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len)
833 {
834 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len);
835 }
836
837 static const struct {
838 int eventid;
839 void (*handler)(struct wil6210_priv *wil, int eventid,
840 void *data, int data_len);
841 } wmi_evt_handlers[] = {
842 {WMI_READY_EVENTID, wmi_evt_ready},
843 {WMI_FW_READY_EVENTID, wmi_evt_ignore},
844 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
845 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt},
846 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
847 {WMI_CONNECT_EVENTID, wmi_evt_connect},
848 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
849 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
850 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
851 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req},
852 {WMI_DELBA_EVENTID, wmi_evt_delba},
853 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en},
854 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore},
855 };
856
857 /*
858 * Run in IRQ context
859 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
860 * that will be eventually handled by the @wmi_event_worker in the thread
861 * context of thread "wil6210_wmi"
862 */
863 void wmi_recv_cmd(struct wil6210_priv *wil)
864 {
865 struct wil6210_mbox_ring_desc d_tail;
866 struct wil6210_mbox_hdr hdr;
867 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
868 struct pending_wmi_event *evt;
869 u8 *cmd;
870 void __iomem *src;
871 ulong flags;
872 unsigned n;
873 unsigned int num_immed_reply = 0;
874
875 if (!test_bit(wil_status_mbox_ready, wil->status)) {
876 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
877 return;
878 }
879
880 if (test_bit(wil_status_suspended, wil->status)) {
881 wil_err(wil, "suspended. cannot handle WMI event\n");
882 return;
883 }
884
885 for (n = 0;; n++) {
886 u16 len;
887 bool q;
888 bool immed_reply = false;
889
890 r->head = wil_r(wil, RGF_MBOX +
891 offsetof(struct wil6210_mbox_ctl, rx.head));
892 if (r->tail == r->head)
893 break;
894
895 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
896 r->head, r->tail);
897 /* read cmd descriptor from tail */
898 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
899 sizeof(struct wil6210_mbox_ring_desc));
900 if (d_tail.sync == 0) {
901 wil_err(wil, "Mbox evt not owned by FW?\n");
902 break;
903 }
904
905 /* read cmd header from descriptor */
906 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
907 wil_err(wil, "Mbox evt at 0x%08x?\n",
908 le32_to_cpu(d_tail.addr));
909 break;
910 }
911 len = le16_to_cpu(hdr.len);
912 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
913 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
914 hdr.flags);
915
916 /* read cmd buffer from descriptor */
917 src = wmi_buffer(wil, d_tail.addr) +
918 sizeof(struct wil6210_mbox_hdr);
919 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
920 event.wmi) + len, 4),
921 GFP_KERNEL);
922 if (!evt)
923 break;
924
925 evt->event.hdr = hdr;
926 cmd = (void *)&evt->event.wmi;
927 wil_memcpy_fromio_32(cmd, src, len);
928 /* mark entry as empty */
929 wil_w(wil, r->tail +
930 offsetof(struct wil6210_mbox_ring_desc, sync), 0);
931 /* indicate */
932 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
933 (len >= sizeof(struct wmi_cmd_hdr))) {
934 struct wmi_cmd_hdr *wmi = &evt->event.wmi;
935 u16 id = le16_to_cpu(wmi->command_id);
936 u32 tstamp = le32_to_cpu(wmi->fw_timestamp);
937 if (test_bit(wil_status_resuming, wil->status)) {
938 if (id == WMI_TRAFFIC_RESUME_EVENTID)
939 clear_bit(wil_status_resuming,
940 wil->status);
941 else
942 wil_err(wil,
943 "WMI evt %d while resuming\n",
944 id);
945 }
946 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
947 if (wil->reply_id && wil->reply_id == id) {
948 if (wil->reply_buf) {
949 memcpy(wil->reply_buf, wmi,
950 min(len, wil->reply_size));
951 immed_reply = true;
952 }
953 if (id == WMI_TRAFFIC_SUSPEND_EVENTID) {
954 wil_dbg_wmi(wil,
955 "set suspend_resp_rcvd\n");
956 wil->suspend_resp_rcvd = true;
957 }
958 }
959 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
960
961 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
962 id, wmi->mid, tstamp);
963 trace_wil6210_wmi_event(wmi, &wmi[1],
964 len - sizeof(*wmi));
965 }
966 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
967 &evt->event.hdr, sizeof(hdr) + len, true);
968
969 /* advance tail */
970 r->tail = r->base + ((r->tail - r->base +
971 sizeof(struct wil6210_mbox_ring_desc)) % r->size);
972 wil_w(wil, RGF_MBOX +
973 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail);
974
975 if (immed_reply) {
976 wil_dbg_wmi(wil, "recv_cmd: Complete WMI 0x%04x\n",
977 wil->reply_id);
978 kfree(evt);
979 num_immed_reply++;
980 complete(&wil->wmi_call);
981 } else {
982 /* add to the pending list */
983 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
984 list_add_tail(&evt->list, &wil->pending_wmi_ev);
985 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
986 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
987 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
988 }
989 }
990 /* normally, 1 event per IRQ should be processed */
991 wil_dbg_wmi(wil, "recv_cmd: -> %d events queued, %d completed\n",
992 n - num_immed_reply, num_immed_reply);
993 }
994
995 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
996 u16 reply_id, void *reply, u8 reply_size, int to_msec)
997 {
998 int rc;
999 unsigned long remain;
1000
1001 mutex_lock(&wil->wmi_mutex);
1002
1003 spin_lock(&wil->wmi_ev_lock);
1004 wil->reply_id = reply_id;
1005 wil->reply_buf = reply;
1006 wil->reply_size = reply_size;
1007 reinit_completion(&wil->wmi_call);
1008 spin_unlock(&wil->wmi_ev_lock);
1009
1010 rc = __wmi_send(wil, cmdid, buf, len);
1011 if (rc)
1012 goto out;
1013
1014 remain = wait_for_completion_timeout(&wil->wmi_call,
1015 msecs_to_jiffies(to_msec));
1016 if (0 == remain) {
1017 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
1018 cmdid, reply_id, to_msec);
1019 rc = -ETIME;
1020 } else {
1021 wil_dbg_wmi(wil,
1022 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
1023 cmdid, reply_id,
1024 to_msec - jiffies_to_msecs(remain));
1025 }
1026
1027 out:
1028 spin_lock(&wil->wmi_ev_lock);
1029 wil->reply_id = 0;
1030 wil->reply_buf = NULL;
1031 wil->reply_size = 0;
1032 spin_unlock(&wil->wmi_ev_lock);
1033
1034 mutex_unlock(&wil->wmi_mutex);
1035
1036 return rc;
1037 }
1038
1039 int wmi_echo(struct wil6210_priv *wil)
1040 {
1041 struct wmi_echo_cmd cmd = {
1042 .value = cpu_to_le32(0x12345678),
1043 };
1044
1045 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
1046 WMI_ECHO_RSP_EVENTID, NULL, 0, 50);
1047 }
1048
1049 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
1050 {
1051 struct wmi_set_mac_address_cmd cmd;
1052
1053 ether_addr_copy(cmd.mac, addr);
1054
1055 wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
1056
1057 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
1058 }
1059
1060 int wmi_led_cfg(struct wil6210_priv *wil, bool enable)
1061 {
1062 int rc = 0;
1063 struct wmi_led_cfg_cmd cmd = {
1064 .led_mode = enable,
1065 .id = led_id,
1066 .slow_blink_cfg.blink_on =
1067 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].on_ms),
1068 .slow_blink_cfg.blink_off =
1069 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].off_ms),
1070 .medium_blink_cfg.blink_on =
1071 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].on_ms),
1072 .medium_blink_cfg.blink_off =
1073 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].off_ms),
1074 .fast_blink_cfg.blink_on =
1075 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].on_ms),
1076 .fast_blink_cfg.blink_off =
1077 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].off_ms),
1078 .led_polarity = led_polarity,
1079 };
1080 struct {
1081 struct wmi_cmd_hdr wmi;
1082 struct wmi_led_cfg_done_event evt;
1083 } __packed reply;
1084
1085 if (led_id == WIL_LED_INVALID_ID)
1086 goto out;
1087
1088 if (led_id > WIL_LED_MAX_ID) {
1089 wil_err(wil, "Invalid led id %d\n", led_id);
1090 rc = -EINVAL;
1091 goto out;
1092 }
1093
1094 wil_dbg_wmi(wil,
1095 "%s led %d\n",
1096 enable ? "enabling" : "disabling", led_id);
1097
1098 rc = wmi_call(wil, WMI_LED_CFG_CMDID, &cmd, sizeof(cmd),
1099 WMI_LED_CFG_DONE_EVENTID, &reply, sizeof(reply),
1100 100);
1101 if (rc)
1102 goto out;
1103
1104 if (reply.evt.status) {
1105 wil_err(wil, "led %d cfg failed with status %d\n",
1106 led_id, le32_to_cpu(reply.evt.status));
1107 rc = -EINVAL;
1108 }
1109
1110 out:
1111 return rc;
1112 }
1113
1114 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype,
1115 u8 chan, u8 hidden_ssid, u8 is_go)
1116 {
1117 int rc;
1118
1119 struct wmi_pcp_start_cmd cmd = {
1120 .bcon_interval = cpu_to_le16(bi),
1121 .network_type = wmi_nettype,
1122 .disable_sec_offload = 1,
1123 .channel = chan - 1,
1124 .pcp_max_assoc_sta = max_assoc_sta,
1125 .hidden_ssid = hidden_ssid,
1126 .is_go = is_go,
1127 .disable_ap_sme = disable_ap_sme,
1128 .abft_len = wil->abft_len,
1129 };
1130 struct {
1131 struct wmi_cmd_hdr wmi;
1132 struct wmi_pcp_started_event evt;
1133 } __packed reply;
1134
1135 if (!wil->privacy)
1136 cmd.disable_sec = 1;
1137
1138 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
1139 (cmd.pcp_max_assoc_sta <= 0)) {
1140 wil_info(wil,
1141 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
1142 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
1143 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
1144 }
1145
1146 if (disable_ap_sme &&
1147 !test_bit(WMI_FW_CAPABILITY_DISABLE_AP_SME,
1148 wil->fw_capabilities)) {
1149 wil_err(wil, "disable_ap_sme not supported by FW\n");
1150 return -EOPNOTSUPP;
1151 }
1152
1153 /*
1154 * Processing time may be huge, in case of secure AP it takes about
1155 * 3500ms for FW to start AP
1156 */
1157 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
1158 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
1159 if (rc)
1160 return rc;
1161
1162 if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
1163 rc = -EINVAL;
1164
1165 if (wmi_nettype != WMI_NETTYPE_P2P)
1166 /* Don't fail due to error in the led configuration */
1167 wmi_led_cfg(wil, true);
1168
1169 return rc;
1170 }
1171
1172 int wmi_pcp_stop(struct wil6210_priv *wil)
1173 {
1174 int rc;
1175
1176 rc = wmi_led_cfg(wil, false);
1177 if (rc)
1178 return rc;
1179
1180 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
1181 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
1182 }
1183
1184 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
1185 {
1186 struct wmi_set_ssid_cmd cmd = {
1187 .ssid_len = cpu_to_le32(ssid_len),
1188 };
1189
1190 if (ssid_len > sizeof(cmd.ssid))
1191 return -EINVAL;
1192
1193 memcpy(cmd.ssid, ssid, ssid_len);
1194
1195 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
1196 }
1197
1198 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
1199 {
1200 int rc;
1201 struct {
1202 struct wmi_cmd_hdr wmi;
1203 struct wmi_set_ssid_cmd cmd;
1204 } __packed reply;
1205 int len; /* reply.cmd.ssid_len in CPU order */
1206
1207 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
1208 &reply, sizeof(reply), 20);
1209 if (rc)
1210 return rc;
1211
1212 len = le32_to_cpu(reply.cmd.ssid_len);
1213 if (len > sizeof(reply.cmd.ssid))
1214 return -EINVAL;
1215
1216 *ssid_len = len;
1217 memcpy(ssid, reply.cmd.ssid, len);
1218
1219 return 0;
1220 }
1221
1222 int wmi_set_channel(struct wil6210_priv *wil, int channel)
1223 {
1224 struct wmi_set_pcp_channel_cmd cmd = {
1225 .channel = channel - 1,
1226 };
1227
1228 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
1229 }
1230
1231 int wmi_get_channel(struct wil6210_priv *wil, int *channel)
1232 {
1233 int rc;
1234 struct {
1235 struct wmi_cmd_hdr wmi;
1236 struct wmi_set_pcp_channel_cmd cmd;
1237 } __packed reply;
1238
1239 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
1240 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
1241 if (rc)
1242 return rc;
1243
1244 if (reply.cmd.channel > 3)
1245 return -EINVAL;
1246
1247 *channel = reply.cmd.channel + 1;
1248
1249 return 0;
1250 }
1251
1252 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel, int bi)
1253 {
1254 int rc;
1255 struct wmi_p2p_cfg_cmd cmd = {
1256 .discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER,
1257 .bcon_interval = cpu_to_le16(bi),
1258 .channel = channel - 1,
1259 };
1260 struct {
1261 struct wmi_cmd_hdr wmi;
1262 struct wmi_p2p_cfg_done_event evt;
1263 } __packed reply;
1264
1265 wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n");
1266
1267 rc = wmi_call(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd),
1268 WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300);
1269 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1270 wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status);
1271 rc = -EINVAL;
1272 }
1273
1274 return rc;
1275 }
1276
1277 int wmi_start_listen(struct wil6210_priv *wil)
1278 {
1279 int rc;
1280 struct {
1281 struct wmi_cmd_hdr wmi;
1282 struct wmi_listen_started_event evt;
1283 } __packed reply;
1284
1285 wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n");
1286
1287 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1288 WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300);
1289 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1290 wil_err(wil, "device failed to start listen. status %d\n",
1291 reply.evt.status);
1292 rc = -EINVAL;
1293 }
1294
1295 return rc;
1296 }
1297
1298 int wmi_start_search(struct wil6210_priv *wil)
1299 {
1300 int rc;
1301 struct {
1302 struct wmi_cmd_hdr wmi;
1303 struct wmi_search_started_event evt;
1304 } __packed reply;
1305
1306 wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n");
1307
1308 rc = wmi_call(wil, WMI_START_SEARCH_CMDID, NULL, 0,
1309 WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300);
1310 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1311 wil_err(wil, "device failed to start search. status %d\n",
1312 reply.evt.status);
1313 rc = -EINVAL;
1314 }
1315
1316 return rc;
1317 }
1318
1319 int wmi_stop_discovery(struct wil6210_priv *wil)
1320 {
1321 int rc;
1322
1323 wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n");
1324
1325 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1326 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100);
1327
1328 if (rc)
1329 wil_err(wil, "Failed to stop discovery\n");
1330
1331 return rc;
1332 }
1333
1334 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
1335 const void *mac_addr, int key_usage)
1336 {
1337 struct wmi_delete_cipher_key_cmd cmd = {
1338 .key_index = key_index,
1339 };
1340
1341 if (mac_addr)
1342 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1343
1344 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1345 }
1346
1347 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
1348 const void *mac_addr, int key_len, const void *key,
1349 int key_usage)
1350 {
1351 struct wmi_add_cipher_key_cmd cmd = {
1352 .key_index = key_index,
1353 .key_usage = key_usage,
1354 .key_len = key_len,
1355 };
1356
1357 if (!key || (key_len > sizeof(cmd.key)))
1358 return -EINVAL;
1359
1360 memcpy(cmd.key, key, key_len);
1361 if (mac_addr)
1362 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1363
1364 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1365 }
1366
1367 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
1368 {
1369 static const char *const names[] = {
1370 [WMI_FRAME_BEACON] = "BEACON",
1371 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ",
1372 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP",
1373 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ",
1374 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP",
1375 };
1376 int rc;
1377 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
1378 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
1379
1380 if (!cmd) {
1381 rc = -ENOMEM;
1382 goto out;
1383 }
1384 if (!ie)
1385 ie_len = 0;
1386
1387 cmd->mgmt_frm_type = type;
1388 /* BUG: FW API define ieLen as u8. Will fix FW */
1389 cmd->ie_len = cpu_to_le16(ie_len);
1390 memcpy(cmd->ie_info, ie, ie_len);
1391 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
1392 kfree(cmd);
1393 out:
1394 if (rc) {
1395 const char *name = type < ARRAY_SIZE(names) ?
1396 names[type] : "??";
1397 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc);
1398 }
1399
1400 return rc;
1401 }
1402
1403 /**
1404 * wmi_rxon - turn radio on/off
1405 * @on: turn on if true, off otherwise
1406 *
1407 * Only switch radio. Channel should be set separately.
1408 * No timeout for rxon - radio turned on forever unless some other call
1409 * turns it off
1410 */
1411 int wmi_rxon(struct wil6210_priv *wil, bool on)
1412 {
1413 int rc;
1414 struct {
1415 struct wmi_cmd_hdr wmi;
1416 struct wmi_listen_started_event evt;
1417 } __packed reply;
1418
1419 wil_info(wil, "(%s)\n", on ? "on" : "off");
1420
1421 if (on) {
1422 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1423 WMI_LISTEN_STARTED_EVENTID,
1424 &reply, sizeof(reply), 100);
1425 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1426 rc = -EINVAL;
1427 } else {
1428 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1429 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1430 }
1431
1432 return rc;
1433 }
1434
1435 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1436 {
1437 struct wireless_dev *wdev = wil->wdev;
1438 struct net_device *ndev = wil_to_ndev(wil);
1439 struct wmi_cfg_rx_chain_cmd cmd = {
1440 .action = WMI_RX_CHAIN_ADD,
1441 .rx_sw_ring = {
1442 .max_mpdu_size = cpu_to_le16(
1443 wil_mtu2macbuf(wil->rx_buf_len)),
1444 .ring_mem_base = cpu_to_le64(vring->pa),
1445 .ring_size = cpu_to_le16(vring->size),
1446 },
1447 .mid = 0, /* TODO - what is it? */
1448 .decap_trans_type = WMI_DECAP_TYPE_802_3,
1449 .reorder_type = WMI_RX_SW_REORDER,
1450 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh),
1451 };
1452 struct {
1453 struct wmi_cmd_hdr wmi;
1454 struct wmi_cfg_rx_chain_done_event evt;
1455 } __packed evt;
1456 int rc;
1457
1458 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1459 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1460
1461 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1462 if (ch)
1463 cmd.sniffer_cfg.channel = ch->hw_value - 1;
1464 cmd.sniffer_cfg.phy_info_mode =
1465 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1466 cmd.sniffer_cfg.phy_support =
1467 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
1468 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS);
1469 } else {
1470 /* Initialize offload (in non-sniffer mode).
1471 * Linux IP stack always calculates IP checksum
1472 * HW always calculate TCP/UDP checksum
1473 */
1474 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
1475 }
1476
1477 if (rx_align_2)
1478 cmd.l2_802_3_offload_ctrl |=
1479 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK;
1480
1481 /* typical time for secure PCP is 840ms */
1482 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1483 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1484 if (rc)
1485 return rc;
1486
1487 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1488
1489 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
1490 le32_to_cpu(evt.evt.status), vring->hwtail);
1491
1492 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1493 rc = -EINVAL;
1494
1495 return rc;
1496 }
1497
1498 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
1499 {
1500 int rc;
1501 struct wmi_temp_sense_cmd cmd = {
1502 .measure_baseband_en = cpu_to_le32(!!t_bb),
1503 .measure_rf_en = cpu_to_le32(!!t_rf),
1504 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW),
1505 };
1506 struct {
1507 struct wmi_cmd_hdr wmi;
1508 struct wmi_temp_sense_done_event evt;
1509 } __packed reply;
1510
1511 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1512 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1513 if (rc)
1514 return rc;
1515
1516 if (t_bb)
1517 *t_bb = le32_to_cpu(reply.evt.baseband_t1000);
1518 if (t_rf)
1519 *t_rf = le32_to_cpu(reply.evt.rf_t1000);
1520
1521 return 0;
1522 }
1523
1524 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac,
1525 u16 reason, bool full_disconnect, bool del_sta)
1526 {
1527 int rc;
1528 u16 reason_code;
1529 struct wmi_disconnect_sta_cmd disc_sta_cmd = {
1530 .disconnect_reason = cpu_to_le16(reason),
1531 };
1532 struct wmi_del_sta_cmd del_sta_cmd = {
1533 .disconnect_reason = cpu_to_le16(reason),
1534 };
1535 struct {
1536 struct wmi_cmd_hdr wmi;
1537 struct wmi_disconnect_event evt;
1538 } __packed reply;
1539
1540 wil_dbg_wmi(wil, "disconnect_sta: (%pM, reason %d)\n", mac, reason);
1541
1542 wil->locally_generated_disc = true;
1543 if (del_sta) {
1544 ether_addr_copy(del_sta_cmd.dst_mac, mac);
1545 rc = wmi_call(wil, WMI_DEL_STA_CMDID, &del_sta_cmd,
1546 sizeof(del_sta_cmd), WMI_DISCONNECT_EVENTID,
1547 &reply, sizeof(reply), 1000);
1548 } else {
1549 ether_addr_copy(disc_sta_cmd.dst_mac, mac);
1550 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &disc_sta_cmd,
1551 sizeof(disc_sta_cmd), WMI_DISCONNECT_EVENTID,
1552 &reply, sizeof(reply), 1000);
1553 }
1554 /* failure to disconnect in reasonable time treated as FW error */
1555 if (rc) {
1556 wil_fw_error_recovery(wil);
1557 return rc;
1558 }
1559
1560 if (full_disconnect) {
1561 /* call event handler manually after processing wmi_call,
1562 * to avoid deadlock - disconnect event handler acquires
1563 * wil->mutex while it is already held here
1564 */
1565 reason_code = le16_to_cpu(reply.evt.protocol_reason_status);
1566
1567 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
1568 reply.evt.bssid, reason_code,
1569 reply.evt.disconnect_reason);
1570
1571 wil->sinfo_gen++;
1572 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true);
1573 }
1574 return 0;
1575 }
1576
1577 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)
1578 {
1579 struct wmi_vring_ba_en_cmd cmd = {
1580 .ringid = ringid,
1581 .agg_max_wsize = size,
1582 .ba_timeout = cpu_to_le16(timeout),
1583 .amsdu = 0,
1584 };
1585
1586 wil_dbg_wmi(wil, "addba: (ring %d size %d timeout %d)\n", ringid, size,
1587 timeout);
1588
1589 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd));
1590 }
1591
1592 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason)
1593 {
1594 struct wmi_vring_ba_dis_cmd cmd = {
1595 .ringid = ringid,
1596 .reason = cpu_to_le16(reason),
1597 };
1598
1599 wil_dbg_wmi(wil, "delba_tx: (ring %d reason %d)\n", ringid, reason);
1600
1601 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd));
1602 }
1603
1604 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason)
1605 {
1606 struct wmi_rcp_delba_cmd cmd = {
1607 .cidxtid = cidxtid,
1608 .reason = cpu_to_le16(reason),
1609 };
1610
1611 wil_dbg_wmi(wil, "delba_rx: (CID %d TID %d reason %d)\n", cidxtid & 0xf,
1612 (cidxtid >> 4) & 0xf, reason);
1613
1614 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd));
1615 }
1616
1617 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
1618 u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
1619 {
1620 int rc;
1621 struct wmi_rcp_addba_resp_cmd cmd = {
1622 .cidxtid = mk_cidxtid(cid, tid),
1623 .dialog_token = token,
1624 .status_code = cpu_to_le16(status),
1625 /* bit 0: A-MSDU supported
1626 * bit 1: policy (should be 0 for us)
1627 * bits 2..5: TID
1628 * bits 6..15: buffer size
1629 */
1630 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
1631 (agg_wsize << 6)),
1632 .ba_timeout = cpu_to_le16(timeout),
1633 };
1634 struct {
1635 struct wmi_cmd_hdr wmi;
1636 struct wmi_rcp_addba_resp_sent_event evt;
1637 } __packed reply;
1638
1639 wil_dbg_wmi(wil,
1640 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
1641 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-");
1642
1643 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd),
1644 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply),
1645 100);
1646 if (rc)
1647 return rc;
1648
1649 if (reply.evt.status) {
1650 wil_err(wil, "ADDBA response failed with status %d\n",
1651 le16_to_cpu(reply.evt.status));
1652 rc = -EINVAL;
1653 }
1654
1655 return rc;
1656 }
1657
1658 int wmi_ps_dev_profile_cfg(struct wil6210_priv *wil,
1659 enum wmi_ps_profile_type ps_profile)
1660 {
1661 int rc;
1662 struct wmi_ps_dev_profile_cfg_cmd cmd = {
1663 .ps_profile = ps_profile,
1664 };
1665 struct {
1666 struct wmi_cmd_hdr wmi;
1667 struct wmi_ps_dev_profile_cfg_event evt;
1668 } __packed reply;
1669 u32 status;
1670
1671 wil_dbg_wmi(wil, "Setting ps dev profile %d\n", ps_profile);
1672
1673 reply.evt.status = cpu_to_le32(WMI_PS_CFG_CMD_STATUS_ERROR);
1674
1675 rc = wmi_call(wil, WMI_PS_DEV_PROFILE_CFG_CMDID, &cmd, sizeof(cmd),
1676 WMI_PS_DEV_PROFILE_CFG_EVENTID, &reply, sizeof(reply),
1677 100);
1678 if (rc)
1679 return rc;
1680
1681 status = le32_to_cpu(reply.evt.status);
1682
1683 if (status != WMI_PS_CFG_CMD_STATUS_SUCCESS) {
1684 wil_err(wil, "ps dev profile cfg failed with status %d\n",
1685 status);
1686 rc = -EINVAL;
1687 }
1688
1689 return rc;
1690 }
1691
1692 int wmi_set_mgmt_retry(struct wil6210_priv *wil, u8 retry_short)
1693 {
1694 int rc;
1695 struct wmi_set_mgmt_retry_limit_cmd cmd = {
1696 .mgmt_retry_limit = retry_short,
1697 };
1698 struct {
1699 struct wmi_cmd_hdr wmi;
1700 struct wmi_set_mgmt_retry_limit_event evt;
1701 } __packed reply;
1702
1703 wil_dbg_wmi(wil, "Setting mgmt retry short %d\n", retry_short);
1704
1705 if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities))
1706 return -ENOTSUPP;
1707
1708 reply.evt.status = WMI_FW_STATUS_FAILURE;
1709
1710 rc = wmi_call(wil, WMI_SET_MGMT_RETRY_LIMIT_CMDID, &cmd, sizeof(cmd),
1711 WMI_SET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply),
1712 100);
1713 if (rc)
1714 return rc;
1715
1716 if (reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1717 wil_err(wil, "set mgmt retry limit failed with status %d\n",
1718 reply.evt.status);
1719 rc = -EINVAL;
1720 }
1721
1722 return rc;
1723 }
1724
1725 int wmi_get_mgmt_retry(struct wil6210_priv *wil, u8 *retry_short)
1726 {
1727 int rc;
1728 struct {
1729 struct wmi_cmd_hdr wmi;
1730 struct wmi_get_mgmt_retry_limit_event evt;
1731 } __packed reply;
1732
1733 wil_dbg_wmi(wil, "getting mgmt retry short\n");
1734
1735 if (!test_bit(WMI_FW_CAPABILITY_MGMT_RETRY_LIMIT, wil->fw_capabilities))
1736 return -ENOTSUPP;
1737
1738 reply.evt.mgmt_retry_limit = 0;
1739 rc = wmi_call(wil, WMI_GET_MGMT_RETRY_LIMIT_CMDID, NULL, 0,
1740 WMI_GET_MGMT_RETRY_LIMIT_EVENTID, &reply, sizeof(reply),
1741 100);
1742 if (rc)
1743 return rc;
1744
1745 if (retry_short)
1746 *retry_short = reply.evt.mgmt_retry_limit;
1747
1748 return 0;
1749 }
1750
1751 int wmi_abort_scan(struct wil6210_priv *wil)
1752 {
1753 int rc;
1754
1755 wil_dbg_wmi(wil, "sending WMI_ABORT_SCAN_CMDID\n");
1756
1757 rc = wmi_send(wil, WMI_ABORT_SCAN_CMDID, NULL, 0);
1758 if (rc)
1759 wil_err(wil, "Failed to abort scan (%d)\n", rc);
1760
1761 return rc;
1762 }
1763
1764 int wmi_new_sta(struct wil6210_priv *wil, const u8 *mac, u8 aid)
1765 {
1766 int rc;
1767 struct wmi_new_sta_cmd cmd = {
1768 .aid = aid,
1769 };
1770
1771 wil_dbg_wmi(wil, "new sta %pM, aid %d\n", mac, aid);
1772
1773 ether_addr_copy(cmd.dst_mac, mac);
1774
1775 rc = wmi_send(wil, WMI_NEW_STA_CMDID, &cmd, sizeof(cmd));
1776 if (rc)
1777 wil_err(wil, "Failed to send new sta (%d)\n", rc);
1778
1779 return rc;
1780 }
1781
1782 void wmi_event_flush(struct wil6210_priv *wil)
1783 {
1784 ulong flags;
1785 struct pending_wmi_event *evt, *t;
1786
1787 wil_dbg_wmi(wil, "event_flush\n");
1788
1789 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1790
1791 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1792 list_del(&evt->list);
1793 kfree(evt);
1794 }
1795
1796 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1797 }
1798
1799 int wmi_suspend(struct wil6210_priv *wil)
1800 {
1801 int rc;
1802 struct wmi_traffic_suspend_cmd cmd = {
1803 .wakeup_trigger = wil->wakeup_trigger,
1804 };
1805 struct {
1806 struct wmi_cmd_hdr wmi;
1807 struct wmi_traffic_suspend_event evt;
1808 } __packed reply;
1809 u32 suspend_to = WIL_WAIT_FOR_SUSPEND_RESUME_COMP;
1810
1811 wil->suspend_resp_rcvd = false;
1812 wil->suspend_resp_comp = false;
1813
1814 reply.evt.status = WMI_TRAFFIC_SUSPEND_REJECTED;
1815
1816 rc = wmi_call(wil, WMI_TRAFFIC_SUSPEND_CMDID, &cmd, sizeof(cmd),
1817 WMI_TRAFFIC_SUSPEND_EVENTID, &reply, sizeof(reply),
1818 suspend_to);
1819 if (rc) {
1820 wil_err(wil, "wmi_call for suspend req failed, rc=%d\n", rc);
1821 if (rc == -ETIME)
1822 /* wmi_call TO */
1823 wil->suspend_stats.rejected_by_device++;
1824 else
1825 wil->suspend_stats.rejected_by_host++;
1826 goto out;
1827 }
1828
1829 wil_dbg_wmi(wil, "waiting for suspend_response_completed\n");
1830
1831 rc = wait_event_interruptible_timeout(wil->wq,
1832 wil->suspend_resp_comp,
1833 msecs_to_jiffies(suspend_to));
1834 if (rc == 0) {
1835 wil_err(wil, "TO waiting for suspend_response_completed\n");
1836 if (wil->suspend_resp_rcvd)
1837 /* Device responded but we TO due to another reason */
1838 wil->suspend_stats.rejected_by_host++;
1839 else
1840 wil->suspend_stats.rejected_by_device++;
1841 rc = -EBUSY;
1842 goto out;
1843 }
1844
1845 wil_dbg_wmi(wil, "suspend_response_completed rcvd\n");
1846 if (reply.evt.status == WMI_TRAFFIC_SUSPEND_REJECTED) {
1847 wil_dbg_pm(wil, "device rejected the suspend\n");
1848 wil->suspend_stats.rejected_by_device++;
1849 }
1850 rc = reply.evt.status;
1851
1852 out:
1853 wil->suspend_resp_rcvd = false;
1854 wil->suspend_resp_comp = false;
1855
1856 return rc;
1857 }
1858
1859 int wmi_resume(struct wil6210_priv *wil)
1860 {
1861 int rc;
1862 struct {
1863 struct wmi_cmd_hdr wmi;
1864 struct wmi_traffic_resume_event evt;
1865 } __packed reply;
1866
1867 reply.evt.status = WMI_TRAFFIC_RESUME_FAILED;
1868
1869 rc = wmi_call(wil, WMI_TRAFFIC_RESUME_CMDID, NULL, 0,
1870 WMI_TRAFFIC_RESUME_EVENTID, &reply, sizeof(reply),
1871 WIL_WAIT_FOR_SUSPEND_RESUME_COMP);
1872 if (rc)
1873 return rc;
1874
1875 return reply.evt.status;
1876 }
1877
1878 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1879 void *d, int len)
1880 {
1881 uint i;
1882
1883 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1884 if (wmi_evt_handlers[i].eventid == id) {
1885 wmi_evt_handlers[i].handler(wil, id, d, len);
1886 return true;
1887 }
1888 }
1889
1890 return false;
1891 }
1892
1893 static void wmi_event_handle(struct wil6210_priv *wil,
1894 struct wil6210_mbox_hdr *hdr)
1895 {
1896 u16 len = le16_to_cpu(hdr->len);
1897
1898 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
1899 (len >= sizeof(struct wmi_cmd_hdr))) {
1900 struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]);
1901 void *evt_data = (void *)(&wmi[1]);
1902 u16 id = le16_to_cpu(wmi->command_id);
1903
1904 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1905 id, wil->reply_id);
1906 /* check if someone waits for this event */
1907 if (wil->reply_id && wil->reply_id == id) {
1908 WARN_ON(wil->reply_buf);
1909 wmi_evt_call_handler(wil, id, evt_data,
1910 len - sizeof(*wmi));
1911 wil_dbg_wmi(wil, "event_handle: Complete WMI 0x%04x\n",
1912 id);
1913 complete(&wil->wmi_call);
1914 return;
1915 }
1916 /* unsolicited event */
1917 /* search for handler */
1918 if (!wmi_evt_call_handler(wil, id, evt_data,
1919 len - sizeof(*wmi))) {
1920 wil_info(wil, "Unhandled event 0x%04x\n", id);
1921 }
1922 } else {
1923 wil_err(wil, "Unknown event type\n");
1924 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1925 hdr, sizeof(*hdr) + len, true);
1926 }
1927 }
1928
1929 /*
1930 * Retrieve next WMI event from the pending list
1931 */
1932 static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1933 {
1934 ulong flags;
1935 struct list_head *ret = NULL;
1936
1937 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1938
1939 if (!list_empty(&wil->pending_wmi_ev)) {
1940 ret = wil->pending_wmi_ev.next;
1941 list_del(ret);
1942 }
1943
1944 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1945
1946 return ret;
1947 }
1948
1949 /*
1950 * Handler for the WMI events
1951 */
1952 void wmi_event_worker(struct work_struct *work)
1953 {
1954 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1955 wmi_event_worker);
1956 struct pending_wmi_event *evt;
1957 struct list_head *lh;
1958
1959 wil_dbg_wmi(wil, "event_worker: Start\n");
1960 while ((lh = next_wmi_ev(wil)) != NULL) {
1961 evt = list_entry(lh, struct pending_wmi_event, list);
1962 wmi_event_handle(wil, &evt->event.hdr);
1963 kfree(evt);
1964 }
1965 wil_dbg_wmi(wil, "event_worker: Finished\n");
1966 }
1967
1968 bool wil_is_wmi_idle(struct wil6210_priv *wil)
1969 {
1970 ulong flags;
1971 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
1972 bool rc = false;
1973
1974 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1975
1976 /* Check if there are pending WMI events in the events queue */
1977 if (!list_empty(&wil->pending_wmi_ev)) {
1978 wil_dbg_pm(wil, "Pending WMI events in queue\n");
1979 goto out;
1980 }
1981
1982 /* Check if there is a pending WMI call */
1983 if (wil->reply_id) {
1984 wil_dbg_pm(wil, "Pending WMI call\n");
1985 goto out;
1986 }
1987
1988 /* Check if there are pending RX events in mbox */
1989 r->head = wil_r(wil, RGF_MBOX +
1990 offsetof(struct wil6210_mbox_ctl, rx.head));
1991 if (r->tail != r->head)
1992 wil_dbg_pm(wil, "Pending WMI mbox events\n");
1993 else
1994 rc = true;
1995
1996 out:
1997 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1998 return rc;
1999 }
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