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wil6210: fix race condition between BACK event and Rx data
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / wmi.c
CommitLineData
2be7d22f 1/*
02525a79 2 * Copyright (c) 2012-2014 Qualcomm Atheros, Inc.
2be7d22f
VK		 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
1eb9d1e5 17#include <linux/moduleparam.h>
2be7d22f 18#include <linux/etherdevice.h>
47e19af9 19#include <linux/if_arp.h>
2be7d22f
VK		 20
21#include "wil6210.h"
47e19af9 22#include "txrx.h"
2be7d22f 23#include "wmi.h"
98658095 24#include "trace.h"
2be7d22f 25
1eb9d1e5
DL		 26static uint max_assoc_sta = 1;
27module_param(max_assoc_sta, uint, S_IRUGO | S_IWUSR);
28MODULE_PARM_DESC(max_assoc_sta, " Max number of stations associated to the AP");
29
2be7d22f
VK		 30/**
31 * WMI event receiving - theory of operations
32 *
33 * When firmware about to report WMI event, it fills memory area
34 * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for
35 * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler.
36 *
37 * @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the
38 * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up
39 * and handles events within the @wmi_event_worker. Every event get detached
40 * from list, processed and deleted.
41 *
42 * Purpose for this mechanism is to release IRQ thread; otherwise,
43 * if WMI event handling involves another WMI command flow, this 2-nd flow
44 * won't be completed because of blocked IRQ thread.
45 */
46
47/**
48 * Addressing - theory of operations
49 *
50 * There are several buses present on the WIL6210 card.
51 * Same memory areas are visible at different address on
52 * the different busses. There are 3 main bus masters:
53 * - MAC CPU (ucode)
54 * - User CPU (firmware)
55 * - AHB (host)
56 *
57 * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing
58 * AHB addresses starting from 0x880000
59 *
60 * Internally, firmware uses addresses that allows faster access but
61 * are invisible from the host. To read from these addresses, alternative
62 * AHB address must be used.
63 *
64 * Memory mapping
65 * Linker address PCI/Host address
66 * 0x880000 .. 0xa80000 2Mb BAR0
67 * 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM
68 * 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH
69 */
70
71/**
72 * @fw_mapping provides memory remapping table
b541d0a0
VK		 73 *
74 * array size should be in sync with the declaration in the wil6210.h
2be7d22f 75 */
b541d0a0
VK		 76const struct fw_map fw_mapping[] = {
77 {0x000000, 0x040000, 0x8c0000, "fw_code"}, /* FW code RAM 256k */
78 {0x800000, 0x808000, 0x900000, "fw_data"}, /* FW data RAM 32k */
79 {0x840000, 0x860000, 0x908000, "fw_peri"}, /* periph. data RAM 128k */
80 {0x880000, 0x88a000, 0x880000, "rgf"}, /* various RGF 40k */
72269146 81 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl"}, /* AGC table 4k */
b541d0a0
VK		 82 {0x88b000, 0x88c000, 0x88b000, "rgf_ext"}, /* Pcie_ext_rgf 4k */
83 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */
2be7d22f
VK		 84 /*
85 * 920000..930000 ucode code RAM
86 * 930000..932000 ucode data RAM
af6b48db 87 * 932000..949000 back-door debug data
2be7d22f
VK		 88 */
89};
90
91/**
92 * return AHB address for given firmware/ucode internal (linker) address
93 * @x - internal address
94 * If address have no valid AHB mapping, return 0
95 */
96static u32 wmi_addr_remap(u32 x)
97{
98 uint i;
99
100 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
101 if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to))
102 return x + fw_mapping[i].host - fw_mapping[i].from;
103 }
104
105 return 0;
106}
107
108/**
109 * Check address validity for WMI buffer; remap if needed
110 * @ptr - internal (linker) fw/ucode address
111 *
112 * Valid buffer should be DWORD aligned
113 *
114 * return address for accessing buffer from the host;
115 * if buffer is not valid, return NULL.
116 */
117void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_)
118{
119 u32 off;
120 u32 ptr = le32_to_cpu(ptr_);
121
122 if (ptr % 4)
123 return NULL;
124
125 ptr = wmi_addr_remap(ptr);
126 if (ptr < WIL6210_FW_HOST_OFF)
127 return NULL;
128
129 off = HOSTADDR(ptr);
130 if (off > WIL6210_MEM_SIZE - 4)
131 return NULL;
132
133 return wil->csr + off;
134}
135
136/**
137 * Check address validity
138 */
139void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr)
140{
141 u32 off;
142
143 if (ptr % 4)
144 return NULL;
145
146 if (ptr < WIL6210_FW_HOST_OFF)
147 return NULL;
148
149 off = HOSTADDR(ptr);
150 if (off > WIL6210_MEM_SIZE - 4)
151 return NULL;
152
153 return wil->csr + off;
154}
155
156int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
157 struct wil6210_mbox_hdr *hdr)
158{
159 void __iomem *src = wmi_buffer(wil, ptr);
8fe59627 160
2be7d22f
VK		 161 if (!src)
162 return -EINVAL;
163
164 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
165
166 return 0;
167}
168
169static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
170{
171 struct {
172 struct wil6210_mbox_hdr hdr;
173 struct wil6210_mbox_hdr_wmi wmi;
174 } __packed cmd = {
175 .hdr = {
176 .type = WIL_MBOX_HDR_TYPE_WMI,
177 .flags = 0,
178 .len = cpu_to_le16(sizeof(cmd.wmi) + len),
179 },
180 .wmi = {
f988b23f 181 .mid = 0,
2be7d22f 182 .id = cpu_to_le16(cmdid),
2be7d22f
VK		 183 },
184 };
185 struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx;
186 struct wil6210_mbox_ring_desc d_head;
187 u32 next_head;
188 void __iomem *dst;
189 void __iomem *head = wmi_addr(wil, r->head);
190 uint retry;
191
192 if (sizeof(cmd) + len > r->entry_size) {
193 wil_err(wil, "WMI size too large: %d bytes, max is %d\n",
194 (int)(sizeof(cmd) + len), r->entry_size);
195 return -ERANGE;
2be7d22f
VK		 196 }
197
198 might_sleep();
199
200 if (!test_bit(wil_status_fwready, &wil->status)) {
15e23124 201 wil_err(wil, "WMI: cannot send command while FW not ready\n");
2be7d22f
VK		 202 return -EAGAIN;
203 }
204
205 if (!head) {
206 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head);
207 return -EINVAL;
208 }
209 /* read Tx head till it is not busy */
210 for (retry = 5; retry > 0; retry--) {
211 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head));
212 if (d_head.sync == 0)
213 break;
214 msleep(20);
215 }
216 if (d_head.sync != 0) {
217 wil_err(wil, "WMI head busy\n");
218 return -EBUSY;
219 }
220 /* next head */
221 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size);
7743882d 222 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
2be7d22f
VK		 223 /* wait till FW finish with previous command */
224 for (retry = 5; retry > 0; retry--) {
225 r->tail = ioread32(wil->csr + HOST_MBOX +
226 offsetof(struct wil6210_mbox_ctl, tx.tail));
227 if (next_head != r->tail)
228 break;
229 msleep(20);
230 }
231 if (next_head == r->tail) {
232 wil_err(wil, "WMI ring full\n");
233 return -EBUSY;
234 }
235 dst = wmi_buffer(wil, d_head.addr);
236 if (!dst) {
237 wil_err(wil, "invalid WMI buffer: 0x%08x\n",
238 le32_to_cpu(d_head.addr));
239 return -EINVAL;
240 }
241 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
242 /* set command */
7743882d
VK		 243 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len);
244 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
2be7d22f 245 sizeof(cmd), true);
7743882d 246 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
2be7d22f
VK		 247 len, true);
248 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
249 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
250 /* mark entry as full */
251 iowrite32(1, wil->csr + HOSTADDR(r->head) +
252 offsetof(struct wil6210_mbox_ring_desc, sync));
253 /* advance next ptr */
254 iowrite32(r->head = next_head, wil->csr + HOST_MBOX +
255 offsetof(struct wil6210_mbox_ctl, tx.head));
256
f988b23f 257 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
98658095 258
2be7d22f
VK		 259 /* interrupt to FW */
260 iowrite32(SW_INT_MBOX, wil->csr + HOST_SW_INT);
261
262 return 0;
263}
264
265int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
266{
267 int rc;
268
269 mutex_lock(&wil->wmi_mutex);
270 rc = __wmi_send(wil, cmdid, buf, len);
271 mutex_unlock(&wil->wmi_mutex);
272
273 return rc;
274}
275
276/*=== Event handlers ===*/
277static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
278{
279 struct net_device *ndev = wil_to_ndev(wil);
280 struct wireless_dev *wdev = wil->wdev;
281 struct wmi_ready_event *evt = d;
8fe59627 282
b8023177
VK		 283 wil->fw_version = le32_to_cpu(evt->sw_version);
284 wil->n_mids = evt->numof_additional_mids;
2be7d22f 285
15e23124
VK		 286 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version,
287 evt->mac, wil->n_mids);
2be7d22f
VK		 288
289 if (!is_valid_ether_addr(ndev->dev_addr)) {
290 memcpy(ndev->dev_addr, evt->mac, ETH_ALEN);
291 memcpy(ndev->perm_addr, evt->mac, ETH_ALEN);
292 }
293 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version),
b8023177 294 "%d", wil->fw_version);
2be7d22f
VK		 295}
296
297static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d,
298 int len)
299{
15e23124 300 wil_dbg_wmi(wil, "WMI: got FW ready event\n");
2be7d22f
VK		 301
302 set_bit(wil_status_fwready, &wil->status);
303 /* reuse wmi_ready for the firmware ready indication */
304 complete(&wil->wmi_ready);
305}
306
307static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
308{
309 struct wmi_rx_mgmt_packet_event *data = d;
310 struct wiphy *wiphy = wil_to_wiphy(wil);
311 struct ieee80211_mgmt *rx_mgmt_frame =
312 (struct ieee80211_mgmt *)data->payload;
313 int ch_no = data->info.channel+1;
314 u32 freq = ieee80211_channel_to_frequency(ch_no,
315 IEEE80211_BAND_60GHZ);
316 struct ieee80211_channel *channel = ieee80211_get_channel(wiphy, freq);
b8b33a3a 317 s32 signal = data->info.sqi;
2be7d22f
VK		 318 __le16 fc = rx_mgmt_frame->frame_control;
319 u32 d_len = le32_to_cpu(data->info.len);
320 u16 d_status = le16_to_cpu(data->info.status);
321
b8b33a3a
VK		 322 wil_dbg_wmi(wil, "MGMT: channel %d MCS %d SNR %d SQI %d%%\n",
323 data->info.channel, data->info.mcs, data->info.snr,
324 data->info.sqi);
f27dbf78
VK		 325 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
326 le16_to_cpu(fc));
7743882d 327 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
2be7d22f
VK		 328 data->info.qid, data->info.mid, data->info.cid);
329
330 if (!channel) {
331 wil_err(wil, "Frame on unsupported channel\n");
332 return;
333 }
334
335 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
336 struct cfg80211_bss *bss;
8eea944a
VK		 337 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
338 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
339 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
340 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
341 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
342 u.beacon.variable);
343 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
344 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
345 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
346 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
347 ie_len, true);
a0f7845b
VK		 348
349 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
350 d_len, signal, GFP_KERNEL);
2be7d22f 351 if (bss) {
7743882d 352 wil_dbg_wmi(wil, "Added BSS %pM\n",
2be7d22f 353 rx_mgmt_frame->bssid);
5b112d3d 354 cfg80211_put_bss(wiphy, bss);
2be7d22f 355 } else {
5bc8c1f2 356 wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
2be7d22f 357 }
102b1d99
VK		 358 } else {
359 cfg80211_rx_mgmt(wil->wdev, freq, signal,
970fdfa8 360 (void *)rx_mgmt_frame, d_len, 0);
2be7d22f
VK		 361 }
362}
363
364static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
365 void *d, int len)
366{
367 if (wil->scan_request) {
368 struct wmi_scan_complete_event *data = d;
6c2faf09 369 bool aborted = (data->status != WMI_SCAN_SUCCESS);
2be7d22f 370
7743882d 371 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
2a91d7d0
VK		 372 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
373 wil->scan_request, aborted);
374
047e5d74 375 del_timer_sync(&wil->scan_timer);
2be7d22f
VK		 376 cfg80211_scan_done(wil->scan_request, aborted);
377 wil->scan_request = NULL;
378 } else {
379 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
380 }
381}
382
383static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
384{
385 struct net_device *ndev = wil_to_ndev(wil);
386 struct wireless_dev *wdev = wil->wdev;
387 struct wmi_connect_event *evt = d;
388 int ch; /* channel number */
389 struct station_info sinfo;
390 u8 *assoc_req_ie, *assoc_resp_ie;
391 size_t assoc_req_ielen, assoc_resp_ielen;
392 /* capinfo(u16) + listen_interval(u16) + IEs */
393 const size_t assoc_req_ie_offset = sizeof(u16) * 2;
394 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
395 const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
396
397 if (len < sizeof(*evt)) {
398 wil_err(wil, "Connect event too short : %d bytes\n", len);
399 return;
400 }
401 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
402 evt->assoc_resp_len) {
403 wil_err(wil,
404 "Connect event corrupted : %d != %d + %d + %d + %d\n",
405 len, (int)sizeof(*evt), evt->beacon_ie_len,
406 evt->assoc_req_len, evt->assoc_resp_len);
407 return;
408 }
3df2cd36
VK		 409 if (evt->cid >= WIL6210_MAX_CID) {
410 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
411 return;
412 }
413
2be7d22f 414 ch = evt->channel + 1;
7743882d 415 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n",
2be7d22f 416 evt->bssid, ch, evt->cid);
7743882d 417 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 418 evt->assoc_info, len - sizeof(*evt), true);
419
420 /* figure out IE's */
421 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
422 assoc_req_ie_offset];
423 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
424 if (evt->assoc_req_len <= assoc_req_ie_offset) {
425 assoc_req_ie = NULL;
426 assoc_req_ielen = 0;
427 }
428
429 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
430 evt->assoc_req_len +
431 assoc_resp_ie_offset];
432 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
433 if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
434 assoc_resp_ie = NULL;
435 assoc_resp_ielen = 0;
436 }
437
438 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
439 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
b338f74e 440 if (!test_bit(wil_status_fwconnecting, &wil->status)) {
2be7d22f
VK		 441 wil_err(wil, "Not in connecting state\n");
442 return;
443 }
444 del_timer_sync(&wil->connect_timer);
445 cfg80211_connect_result(ndev, evt->bssid,
446 assoc_req_ie, assoc_req_ielen,
447 assoc_resp_ie, assoc_resp_ielen,
448 WLAN_STATUS_SUCCESS, GFP_KERNEL);
449
450 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
451 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
452 memset(&sinfo, 0, sizeof(sinfo));
453
454 sinfo.generation = wil->sinfo_gen++;
455
456 if (assoc_req_ie) {
457 sinfo.assoc_req_ies = assoc_req_ie;
458 sinfo.assoc_req_ies_len = assoc_req_ielen;
459 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
460 }
461
462 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
463 }
b338f74e 464 clear_bit(wil_status_fwconnecting, &wil->status);
2be7d22f
VK		 465 set_bit(wil_status_fwconnected, &wil->status);
466
467 /* FIXME FW can transmit only ucast frames to peer */
468 /* FIXME real ring_id instead of hard coded 0 */
3df2cd36
VK		 469 memcpy(wil->sta[evt->cid].addr, evt->bssid, ETH_ALEN);
470 wil->sta[evt->cid].status = wil_sta_conn_pending;
2be7d22f
VK		 471
472 wil->pending_connect_cid = evt->cid;
d81079f1 473 queue_work(wil->wmi_wq_conn, &wil->connect_worker);
2be7d22f
VK		 474}
475
476static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
477 void *d, int len)
478{
479 struct wmi_disconnect_event *evt = d;
480
4d55a0a1
VK		 481 wil_dbg_wmi(wil, "Disconnect %pM reason %d proto %d wmi\n",
482 evt->bssid,
2be7d22f
VK		 483 evt->protocol_reason_status, evt->disconnect_reason);
484
485 wil->sinfo_gen++;
486
097638a0 487 mutex_lock(&wil->mutex);
2be7d22f 488 wil6210_disconnect(wil, evt->bssid);
097638a0 489 mutex_unlock(&wil->mutex);
2be7d22f
VK		 490}
491
2be7d22f
VK		 492/*
493 * Firmware reports EAPOL frame using WME event.
494 * Reconstruct Ethernet frame and deliver it via normal Rx
495 */
496static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
497 void *d, int len)
498{
499 struct net_device *ndev = wil_to_ndev(wil);
500 struct wmi_eapol_rx_event *evt = d;
501 u16 eapol_len = le16_to_cpu(evt->eapol_len);
502 int sz = eapol_len + ETH_HLEN;
503 struct sk_buff *skb;
504 struct ethhdr *eth;
c8b78b5f
VK		 505 int cid;
506 struct wil_net_stats *stats = NULL;
2be7d22f 507
7743882d 508 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
2be7d22f
VK		 509 evt->src_mac);
510
c8b78b5f
VK		 511 cid = wil_find_cid(wil, evt->src_mac);
512 if (cid >= 0)
513 stats = &wil->sta[cid].stats;
514
2be7d22f
VK		 515 if (eapol_len > 196) { /* TODO: revisit size limit */
516 wil_err(wil, "EAPOL too large\n");
517 return;
518 }
519
520 skb = alloc_skb(sz, GFP_KERNEL);
521 if (!skb) {
522 wil_err(wil, "Failed to allocate skb\n");
523 return;
524 }
c8b78b5f 525
2be7d22f
VK		 526 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
527 memcpy(eth->h_dest, ndev->dev_addr, ETH_ALEN);
528 memcpy(eth->h_source, evt->src_mac, ETH_ALEN);
529 eth->h_proto = cpu_to_be16(ETH_P_PAE);
530 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
531 skb->protocol = eth_type_trans(skb, ndev);
532 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
533 ndev->stats.rx_packets++;
c8b78b5f
VK		 534 ndev->stats.rx_bytes += sz;
535 if (stats) {
536 stats->rx_packets++;
537 stats->rx_bytes += sz;
538 }
2be7d22f
VK		 539 } else {
540 ndev->stats.rx_dropped++;
c8b78b5f
VK		 541 if (stats)
542 stats->rx_dropped++;
2be7d22f
VK		 543 }
544}
545
3442a504
VK		 546static void wmi_evt_linkup(struct wil6210_priv *wil, int id, void *d, int len)
547{
548 struct net_device *ndev = wil_to_ndev(wil);
549 struct wmi_data_port_open_event *evt = d;
e58c9f70 550 u8 cid = evt->cid;
3442a504 551
e58c9f70 552 wil_dbg_wmi(wil, "Link UP for CID %d\n", cid);
3442a504 553
e58c9f70
VK		 554 if (cid >= ARRAY_SIZE(wil->sta)) {
555 wil_err(wil, "Link UP for invalid CID %d\n", cid);
556 return;
557 }
558
559 wil->sta[cid].data_port_open = true;
3442a504
VK		 560 netif_carrier_on(ndev);
561}
562
563static void wmi_evt_linkdown(struct wil6210_priv *wil, int id, void *d, int len)
564{
565 struct net_device *ndev = wil_to_ndev(wil);
566 struct wmi_wbe_link_down_event *evt = d;
e58c9f70 567 u8 cid = evt->cid;
3442a504
VK		 568
569 wil_dbg_wmi(wil, "Link DOWN for CID %d, reason %d\n",
e58c9f70
VK		 570 cid, le32_to_cpu(evt->reason));
571
572 if (cid >= ARRAY_SIZE(wil->sta)) {
573 wil_err(wil, "Link DOWN for invalid CID %d\n", cid);
574 return;
575 }
3442a504 576
e58c9f70 577 wil->sta[cid].data_port_open = false;
3442a504
VK		 578 netif_carrier_off(ndev);
579}
580
249a382b
VK		 581static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
582 int len)
583{
584 struct wmi_vring_ba_status_event *evt = d;
7b05b0ab
VK		 585 struct wil_sta_info *sta;
586 uint i, cid;
587
588 /* TODO: use Rx BA status, not Tx one */
249a382b
VK		 589
590 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d\n",
7b05b0ab
VK		 591 evt->ringid,
592 evt->status == WMI_BA_AGREED ? "OK" : "N/A",
b4490f42 593 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout));
7b05b0ab
VK		 594
595 if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
596 wil_err(wil, "invalid ring id %d\n", evt->ringid);
597 return;
b4490f42
VK		 598 }
599
8c86f757
DL		 600 mutex_lock(&wil->mutex);
601
7b05b0ab
VK		 602 cid = wil->vring2cid_tid[evt->ringid][0];
603 if (cid >= WIL6210_MAX_CID) {
604 wil_err(wil, "invalid CID %d for vring %d\n", cid, evt->ringid);
8c86f757 605 goto out;
7b05b0ab
VK		 606 }
607
608 sta = &wil->sta[cid];
609 if (sta->status == wil_sta_unused) {
610 wil_err(wil, "CID %d unused\n", cid);
8c86f757 611 goto out;
7b05b0ab
VK		 612 }
613
614 wil_dbg_wmi(wil, "BACK for CID %d %pM\n", cid, sta->addr);
615 for (i = 0; i < WIL_STA_TID_NUM; i++) {
ec81b5ad
DL		 616 struct wil_tid_ampdu_rx *r;
617 unsigned long flags;
618
619 spin_lock_irqsave(&sta->tid_rx_lock, flags);
620
621 r = sta->tid_rx[i];
7b05b0ab
VK		 622 sta->tid_rx[i] = NULL;
623 wil_tid_ampdu_rx_free(wil, r);
ec81b5ad
DL		 624
625 spin_unlock_irqrestore(&sta->tid_rx_lock, flags);
626
7b05b0ab
VK		 627 if ((evt->status == WMI_BA_AGREED) && evt->agg_wsize)
628 sta->tid_rx[i] = wil_tid_ampdu_rx_alloc(wil,
629 evt->agg_wsize, 0);
630 }
8c86f757
DL		 631
632out:
633 mutex_unlock(&wil->mutex);
249a382b
VK		 634}
635
2be7d22f
VK		 636static const struct {
637 int eventid;
638 void (*handler)(struct wil6210_priv *wil, int eventid,
639 void *data, int data_len);
640} wmi_evt_handlers[] = {
641 {WMI_READY_EVENTID, wmi_evt_ready},
642 {WMI_FW_READY_EVENTID, wmi_evt_fw_ready},
643 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
644 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
645 {WMI_CONNECT_EVENTID, wmi_evt_connect},
646 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
2be7d22f 647 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
3442a504
VK		 648 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_linkup},
649 {WMI_WBE_LINKDOWN_EVENTID, wmi_evt_linkdown},
249a382b 650 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
2be7d22f
VK		 651};
652
653/*
654 * Run in IRQ context
655 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
656 * that will be eventually handled by the @wmi_event_worker in the thread
657 * context of thread "wil6210_wmi"
658 */
659void wmi_recv_cmd(struct wil6210_priv *wil)
660{
661 struct wil6210_mbox_ring_desc d_tail;
662 struct wil6210_mbox_hdr hdr;
663 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
664 struct pending_wmi_event *evt;
665 u8 *cmd;
666 void __iomem *src;
667 ulong flags;
a715c7dd 668 unsigned n;
2be7d22f 669
55f7acdd 670 if (!test_bit(wil_status_reset_done, &wil->status)) {
4cf99c93 671 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
55f7acdd
VK		 672 return;
673 }
674
a715c7dd 675 for (n = 0;; n++) {
2be7d22f 676 u16 len;
95266dc0 677 bool q;
2be7d22f
VK		 678
679 r->head = ioread32(wil->csr + HOST_MBOX +
680 offsetof(struct wil6210_mbox_ctl, rx.head));
95266dc0
VK		 681 if (r->tail == r->head)
682 break;
2be7d22f 683
a715c7dd
VK		 684 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
685 r->head, r->tail);
686 /* read cmd descriptor from tail */
2be7d22f
VK		 687 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
688 sizeof(struct wil6210_mbox_ring_desc));
689 if (d_tail.sync == 0) {
690 wil_err(wil, "Mbox evt not owned by FW?\n");
95266dc0 691 break;
2be7d22f
VK		 692 }
693
a715c7dd 694 /* read cmd header from descriptor */
2be7d22f
VK		 695 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
696 wil_err(wil, "Mbox evt at 0x%08x?\n",
697 le32_to_cpu(d_tail.addr));
95266dc0 698 break;
2be7d22f 699 }
2be7d22f 700 len = le16_to_cpu(hdr.len);
a715c7dd
VK		 701 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
702 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
703 hdr.flags);
704
705 /* read cmd buffer from descriptor */
2be7d22f
VK		 706 src = wmi_buffer(wil, d_tail.addr) +
707 sizeof(struct wil6210_mbox_hdr);
708 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
709 event.wmi) + len, 4),
710 GFP_KERNEL);
14f8dc49 711 if (!evt)
95266dc0 712 break;
14f8dc49 713
2be7d22f
VK		 714 evt->event.hdr = hdr;
715 cmd = (void *)&evt->event.wmi;
716 wil_memcpy_fromio_32(cmd, src, len);
717 /* mark entry as empty */
718 iowrite32(0, wil->csr + HOSTADDR(r->tail) +
719 offsetof(struct wil6210_mbox_ring_desc, sync));
720 /* indicate */
2be7d22f
VK		 721 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
722 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
f988b23f
VK		 723 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi;
724 u16 id = le16_to_cpu(wmi->id);
725 u32 tstamp = le32_to_cpu(wmi->timestamp);
8fe59627 726
f988b23f
VK		 727 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
728 id, wmi->mid, tstamp);
729 trace_wil6210_wmi_event(wmi, &wmi[1],
730 len - sizeof(*wmi));
2be7d22f 731 }
7743882d 732 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 733 &evt->event.hdr, sizeof(hdr) + len, true);
734
735 /* advance tail */
736 r->tail = r->base + ((r->tail - r->base +
737 sizeof(struct wil6210_mbox_ring_desc)) % r->size);
738 iowrite32(r->tail, wil->csr + HOST_MBOX +
739 offsetof(struct wil6210_mbox_ctl, rx.tail));
740
741 /* add to the pending list */
742 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
743 list_add_tail(&evt->list, &wil->pending_wmi_ev);
744 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
95266dc0
VK		 745 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
746 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
2be7d22f 747 }
95266dc0
VK		 748 /* normally, 1 event per IRQ should be processed */
749 wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n);
2be7d22f
VK		 750}
751
752int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
753 u16 reply_id, void *reply, u8 reply_size, int to_msec)
754{
755 int rc;
756 int remain;
757
758 mutex_lock(&wil->wmi_mutex);
759
760 rc = __wmi_send(wil, cmdid, buf, len);
761 if (rc)
762 goto out;
763
764 wil->reply_id = reply_id;
765 wil->reply_buf = reply;
766 wil->reply_size = reply_size;
767 remain = wait_for_completion_timeout(&wil->wmi_ready,
768 msecs_to_jiffies(to_msec));
769 if (0 == remain) {
770 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
771 cmdid, reply_id, to_msec);
772 rc = -ETIME;
773 } else {
7743882d 774 wil_dbg_wmi(wil,
2be7d22f
VK		 775 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
776 cmdid, reply_id,
777 to_msec - jiffies_to_msecs(remain));
778 }
779 wil->reply_id = 0;
780 wil->reply_buf = NULL;
781 wil->reply_size = 0;
782 out:
783 mutex_unlock(&wil->wmi_mutex);
784
785 return rc;
786}
787
788int wmi_echo(struct wil6210_priv *wil)
789{
790 struct wmi_echo_cmd cmd = {
791 .value = cpu_to_le32(0x12345678),
792 };
793
794 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
795 WMI_ECHO_RSP_EVENTID, NULL, 0, 20);
796}
797
798int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
799{
800 struct wmi_set_mac_address_cmd cmd;
801
802 memcpy(cmd.mac, addr, ETH_ALEN);
803
7743882d 804 wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
2be7d22f
VK		 805
806 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
807}
808
b8023177 809int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, u8 chan)
2be7d22f 810{
b8023177
VK		 811 int rc;
812
813 struct wmi_pcp_start_cmd cmd = {
2be7d22f
VK		 814 .bcon_interval = cpu_to_le16(bi),
815 .network_type = wmi_nettype,
816 .disable_sec_offload = 1,
adc2d122 817 .channel = chan - 1,
1eb9d1e5 818 .pcp_max_assoc_sta = max_assoc_sta,
2be7d22f 819 };
b8023177
VK		 820 struct {
821 struct wil6210_mbox_hdr_wmi wmi;
822 struct wmi_pcp_started_event evt;
823 } __packed reply;
2be7d22f
VK		 824
825 if (!wil->secure_pcp)
826 cmd.disable_sec = 1;
827
1eb9d1e5
DL		 828 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
829 (cmd.pcp_max_assoc_sta <= 0)) {
830 wil_info(wil,
831 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
832 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
833 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
834 }
835
8b5c7f6c
VK		 836 /*
837 * Processing time may be huge, in case of secure AP it takes about
838 * 3500ms for FW to start AP
839 */
b8023177 840 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
8b5c7f6c 841 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
b8023177
VK		 842 if (rc)
843 return rc;
844
845 if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
846 rc = -EINVAL;
847
848 return rc;
849}
850
851int wmi_pcp_stop(struct wil6210_priv *wil)
852{
853 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
854 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
2be7d22f
VK		 855}
856
857int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
858{
859 struct wmi_set_ssid_cmd cmd = {
860 .ssid_len = cpu_to_le32(ssid_len),
861 };
862
863 if (ssid_len > sizeof(cmd.ssid))
864 return -EINVAL;
865
866 memcpy(cmd.ssid, ssid, ssid_len);
867
868 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
869}
870
871int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
872{
873 int rc;
874 struct {
875 struct wil6210_mbox_hdr_wmi wmi;
876 struct wmi_set_ssid_cmd cmd;
877 } __packed reply;
878 int len; /* reply.cmd.ssid_len in CPU order */
879
880 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
881 &reply, sizeof(reply), 20);
882 if (rc)
883 return rc;
884
885 len = le32_to_cpu(reply.cmd.ssid_len);
886 if (len > sizeof(reply.cmd.ssid))
887 return -EINVAL;
888
889 *ssid_len = len;
890 memcpy(ssid, reply.cmd.ssid, len);
891
892 return 0;
893}
894
895int wmi_set_channel(struct wil6210_priv *wil, int channel)
896{
897 struct wmi_set_pcp_channel_cmd cmd = {
898 .channel = channel - 1,
899 };
900
901 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
902}
903
904int wmi_get_channel(struct wil6210_priv *wil, int *channel)
905{
906 int rc;
907 struct {
908 struct wil6210_mbox_hdr_wmi wmi;
909 struct wmi_set_pcp_channel_cmd cmd;
910 } __packed reply;
911
912 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
913 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
914 if (rc)
915 return rc;
916
917 if (reply.cmd.channel > 3)
918 return -EINVAL;
919
920 *channel = reply.cmd.channel + 1;
921
922 return 0;
923}
924
b8023177
VK		 925int wmi_p2p_cfg(struct wil6210_priv *wil, int channel)
926{
927 struct wmi_p2p_cfg_cmd cmd = {
928 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD,
929 .channel = channel - 1,
930 };
931
932 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd));
933}
934
2be7d22f
VK		 935int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
936 const void *mac_addr)
937{
938 struct wmi_delete_cipher_key_cmd cmd = {
939 .key_index = key_index,
940 };
941
942 if (mac_addr)
943 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
944
945 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
946}
947
948int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
949 const void *mac_addr, int key_len, const void *key)
950{
951 struct wmi_add_cipher_key_cmd cmd = {
952 .key_index = key_index,
953 .key_usage = WMI_KEY_USE_PAIRWISE,
954 .key_len = key_len,
955 };
956
957 if (!key || (key_len > sizeof(cmd.key)))
958 return -EINVAL;
959
960 memcpy(cmd.key, key, key_len);
961 if (mac_addr)
962 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
963
964 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
965}
966
967int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
968{
969 int rc;
970 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
971 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
8fe59627 972
14f8dc49 973 if (!cmd)
2be7d22f 974 return -ENOMEM;
2be7d22f
VK		 975
976 cmd->mgmt_frm_type = type;
977 /* BUG: FW API define ieLen as u8. Will fix FW */
978 cmd->ie_len = cpu_to_le16(ie_len);
979 memcpy(cmd->ie_info, ie, ie_len);
03866e7d 980 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
2be7d22f
VK		 981 kfree(cmd);
982
983 return rc;
984}
985
1647f12f
VK		 986/**
987 * wmi_rxon - turn radio on/off
988 * @on: turn on if true, off otherwise
989 *
990 * Only switch radio. Channel should be set separately.
991 * No timeout for rxon - radio turned on forever unless some other call
992 * turns it off
993 */
994int wmi_rxon(struct wil6210_priv *wil, bool on)
995{
996 int rc;
997 struct {
998 struct wil6210_mbox_hdr_wmi wmi;
999 struct wmi_listen_started_event evt;
1000 } __packed reply;
1001
1002 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
1003
1004 if (on) {
1005 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1006 WMI_LISTEN_STARTED_EVENTID,
1007 &reply, sizeof(reply), 100);
1008 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1009 rc = -EINVAL;
1010 } else {
1011 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1012 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1013 }
1014
1015 return rc;
1016}
1017
47e19af9
VK		 1018int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1019{
1020 struct wireless_dev *wdev = wil->wdev;
1021 struct net_device *ndev = wil_to_ndev(wil);
1022 struct wmi_cfg_rx_chain_cmd cmd = {
1023 .action = WMI_RX_CHAIN_ADD,
1024 .rx_sw_ring = {
1025 .max_mpdu_size = cpu_to_le16(RX_BUF_LEN),
1026 .ring_mem_base = cpu_to_le64(vring->pa),
1027 .ring_size = cpu_to_le16(vring->size),
1028 },
1029 .mid = 0, /* TODO - what is it? */
1030 .decap_trans_type = WMI_DECAP_TYPE_802_3,
b4490f42 1031 .reorder_type = WMI_RX_SW_REORDER,
47e19af9
VK		 1032 };
1033 struct {
1034 struct wil6210_mbox_hdr_wmi wmi;
1035 struct wmi_cfg_rx_chain_done_event evt;
1036 } __packed evt;
1037 int rc;
1038
1039 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1040 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1041
1042 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1043 if (ch)
1044 cmd.sniffer_cfg.channel = ch->hw_value - 1;
1045 cmd.sniffer_cfg.phy_info_mode =
1046 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1047 cmd.sniffer_cfg.phy_support =
1048 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
1049 ? WMI_SNIFFER_CP : WMI_SNIFFER_DP);
504937d4
KE		 1050 } else {
1051 /* Initialize offload (in non-sniffer mode).
1052 * Linux IP stack always calculates IP checksum
1053 * HW always calculate TCP/UDP checksum
1054 */
1055 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
47e19af9
VK		 1056 }
1057 /* typical time for secure PCP is 840ms */
1058 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1059 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1060 if (rc)
1061 return rc;
1062
1063 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1064
7743882d 1065 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
47e19af9
VK		 1066 le32_to_cpu(evt.evt.status), vring->hwtail);
1067
1068 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1069 rc = -EINVAL;
1070
1071 return rc;
1072}
1073
1a2780e0
VK		 1074int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_m, u32 *t_r)
1075{
1076 int rc;
1077 struct wmi_temp_sense_cmd cmd = {
1078 .measure_marlon_m_en = cpu_to_le32(!!t_m),
1079 .measure_marlon_r_en = cpu_to_le32(!!t_r),
1080 };
1081 struct {
1082 struct wil6210_mbox_hdr_wmi wmi;
1083 struct wmi_temp_sense_done_event evt;
1084 } __packed reply;
1085
1086 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1087 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1088 if (rc)
1089 return rc;
1090
1091 if (t_m)
1092 *t_m = le32_to_cpu(reply.evt.marlon_m_t1000);
1093 if (t_r)
1094 *t_r = le32_to_cpu(reply.evt.marlon_r_t1000);
1095
1096 return 0;
1097}
1098
4d55a0a1
VK		 1099int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason)
1100{
1101 struct wmi_disconnect_sta_cmd cmd = {
1102 .disconnect_reason = cpu_to_le16(reason),
1103 };
1104 memcpy(cmd.dst_mac, mac, ETH_ALEN);
1105
1106 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason);
1107
1108 return wmi_send(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd));
1109}
1110
2be7d22f
VK		 1111void wmi_event_flush(struct wil6210_priv *wil)
1112{
1113 struct pending_wmi_event *evt, *t;
1114
7743882d 1115 wil_dbg_wmi(wil, "%s()\n", __func__);
2be7d22f
VK		 1116
1117 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1118 list_del(&evt->list);
1119 kfree(evt);
1120 }
1121}
1122
1123static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1124 void *d, int len)
1125{
1126 uint i;
1127
1128 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1129 if (wmi_evt_handlers[i].eventid == id) {
1130 wmi_evt_handlers[i].handler(wil, id, d, len);
1131 return true;
1132 }
1133 }
1134
1135 return false;
1136}
1137
1138static void wmi_event_handle(struct wil6210_priv *wil,
1139 struct wil6210_mbox_hdr *hdr)
1140{
1141 u16 len = le16_to_cpu(hdr->len);
1142
1143 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
1144 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
1145 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]);
1146 void *evt_data = (void *)(&wmi[1]);
1147 u16 id = le16_to_cpu(wmi->id);
028e1836
VK		 1148
1149 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1150 id, wil->reply_id);
2be7d22f
VK		 1151 /* check if someone waits for this event */
1152 if (wil->reply_id && wil->reply_id == id) {
1153 if (wil->reply_buf) {
1154 memcpy(wil->reply_buf, wmi,
1155 min(len, wil->reply_size));
1156 } else {
1157 wmi_evt_call_handler(wil, id, evt_data,
1158 len - sizeof(*wmi));
1159 }
7743882d 1160 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id);
2be7d22f
VK		 1161 complete(&wil->wmi_ready);
1162 return;
1163 }
1164 /* unsolicited event */
1165 /* search for handler */
1166 if (!wmi_evt_call_handler(wil, id, evt_data,
1167 len - sizeof(*wmi))) {
1168 wil_err(wil, "Unhandled event 0x%04x\n", id);
1169 }
1170 } else {
1171 wil_err(wil, "Unknown event type\n");
1172 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1173 hdr, sizeof(*hdr) + len, true);
1174 }
1175}
1176
1177/*
1178 * Retrieve next WMI event from the pending list
1179 */
1180static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1181{
1182 ulong flags;
1183 struct list_head *ret = NULL;
1184
1185 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1186
1187 if (!list_empty(&wil->pending_wmi_ev)) {
1188 ret = wil->pending_wmi_ev.next;
1189 list_del(ret);
1190 }
1191
1192 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1193
1194 return ret;
1195}
1196
1197/*
1198 * Handler for the WMI events
1199 */
1200void wmi_event_worker(struct work_struct *work)
1201{
1202 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1203 wmi_event_worker);
1204 struct pending_wmi_event *evt;
1205 struct list_head *lh;
1206
028e1836 1207 wil_dbg_wmi(wil, "Start %s\n", __func__);
2be7d22f
VK		 1208 while ((lh = next_wmi_ev(wil)) != NULL) {
1209 evt = list_entry(lh, struct pending_wmi_event, list);
1210 wmi_event_handle(wil, &evt->event.hdr);
1211 kfree(evt);
1212 }
028e1836 1213 wil_dbg_wmi(wil, "Finished %s\n", __func__);
2be7d22f 1214}
Linux kernel - Deliverables
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