projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
cfg80211: clarify BSS probe response vs. beacon data
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / wmi.c
CommitLineData
2be7d22f
VK		 1/*
2 * Copyright (c) 2012 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
2be7d22f 17#include <linux/etherdevice.h>
47e19af9 18#include <linux/if_arp.h>
2be7d22f
VK		 19
20#include "wil6210.h"
47e19af9 21#include "txrx.h"
2be7d22f 22#include "wmi.h"
98658095 23#include "trace.h"
2be7d22f
VK		 24
25/**
26 * WMI event receiving - theory of operations
27 *
28 * When firmware about to report WMI event, it fills memory area
29 * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for
30 * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler.
31 *
32 * @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the
33 * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up
34 * and handles events within the @wmi_event_worker. Every event get detached
35 * from list, processed and deleted.
36 *
37 * Purpose for this mechanism is to release IRQ thread; otherwise,
38 * if WMI event handling involves another WMI command flow, this 2-nd flow
39 * won't be completed because of blocked IRQ thread.
40 */
41
42/**
43 * Addressing - theory of operations
44 *
45 * There are several buses present on the WIL6210 card.
46 * Same memory areas are visible at different address on
47 * the different busses. There are 3 main bus masters:
48 * - MAC CPU (ucode)
49 * - User CPU (firmware)
50 * - AHB (host)
51 *
52 * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing
53 * AHB addresses starting from 0x880000
54 *
55 * Internally, firmware uses addresses that allows faster access but
56 * are invisible from the host. To read from these addresses, alternative
57 * AHB address must be used.
58 *
59 * Memory mapping
60 * Linker address PCI/Host address
61 * 0x880000 .. 0xa80000 2Mb BAR0
62 * 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM
63 * 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH
64 */
65
66/**
67 * @fw_mapping provides memory remapping table
b541d0a0
VK		 68 *
69 * array size should be in sync with the declaration in the wil6210.h
2be7d22f 70 */
b541d0a0
VK		 71const struct fw_map fw_mapping[] = {
72 {0x000000, 0x040000, 0x8c0000, "fw_code"}, /* FW code RAM 256k */
73 {0x800000, 0x808000, 0x900000, "fw_data"}, /* FW data RAM 32k */
74 {0x840000, 0x860000, 0x908000, "fw_peri"}, /* periph. data RAM 128k */
75 {0x880000, 0x88a000, 0x880000, "rgf"}, /* various RGF 40k */
72269146 76 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl"}, /* AGC table 4k */
b541d0a0
VK		 77 {0x88b000, 0x88c000, 0x88b000, "rgf_ext"}, /* Pcie_ext_rgf 4k */
78 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */
2be7d22f
VK		 79 /*
80 * 920000..930000 ucode code RAM
81 * 930000..932000 ucode data RAM
af6b48db 82 * 932000..949000 back-door debug data
2be7d22f
VK		 83 */
84};
85
86/**
87 * return AHB address for given firmware/ucode internal (linker) address
88 * @x - internal address
89 * If address have no valid AHB mapping, return 0
90 */
91static u32 wmi_addr_remap(u32 x)
92{
93 uint i;
94
95 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
96 if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to))
97 return x + fw_mapping[i].host - fw_mapping[i].from;
98 }
99
100 return 0;
101}
102
103/**
104 * Check address validity for WMI buffer; remap if needed
105 * @ptr - internal (linker) fw/ucode address
106 *
107 * Valid buffer should be DWORD aligned
108 *
109 * return address for accessing buffer from the host;
110 * if buffer is not valid, return NULL.
111 */
112void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_)
113{
114 u32 off;
115 u32 ptr = le32_to_cpu(ptr_);
116
117 if (ptr % 4)
118 return NULL;
119
120 ptr = wmi_addr_remap(ptr);
121 if (ptr < WIL6210_FW_HOST_OFF)
122 return NULL;
123
124 off = HOSTADDR(ptr);
125 if (off > WIL6210_MEM_SIZE - 4)
126 return NULL;
127
128 return wil->csr + off;
129}
130
131/**
132 * Check address validity
133 */
134void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr)
135{
136 u32 off;
137
138 if (ptr % 4)
139 return NULL;
140
141 if (ptr < WIL6210_FW_HOST_OFF)
142 return NULL;
143
144 off = HOSTADDR(ptr);
145 if (off > WIL6210_MEM_SIZE - 4)
146 return NULL;
147
148 return wil->csr + off;
149}
150
151int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
152 struct wil6210_mbox_hdr *hdr)
153{
154 void __iomem *src = wmi_buffer(wil, ptr);
155 if (!src)
156 return -EINVAL;
157
158 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
159
160 return 0;
161}
162
163static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
164{
165 struct {
166 struct wil6210_mbox_hdr hdr;
167 struct wil6210_mbox_hdr_wmi wmi;
168 } __packed cmd = {
169 .hdr = {
170 .type = WIL_MBOX_HDR_TYPE_WMI,
171 .flags = 0,
172 .len = cpu_to_le16(sizeof(cmd.wmi) + len),
173 },
174 .wmi = {
f988b23f 175 .mid = 0,
2be7d22f 176 .id = cpu_to_le16(cmdid),
2be7d22f
VK		 177 },
178 };
179 struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx;
180 struct wil6210_mbox_ring_desc d_head;
181 u32 next_head;
182 void __iomem *dst;
183 void __iomem *head = wmi_addr(wil, r->head);
184 uint retry;
185
186 if (sizeof(cmd) + len > r->entry_size) {
187 wil_err(wil, "WMI size too large: %d bytes, max is %d\n",
188 (int)(sizeof(cmd) + len), r->entry_size);
189 return -ERANGE;
2be7d22f
VK		 190 }
191
192 might_sleep();
193
194 if (!test_bit(wil_status_fwready, &wil->status)) {
15e23124 195 wil_err(wil, "WMI: cannot send command while FW not ready\n");
2be7d22f
VK		 196 return -EAGAIN;
197 }
198
199 if (!head) {
200 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head);
201 return -EINVAL;
202 }
203 /* read Tx head till it is not busy */
204 for (retry = 5; retry > 0; retry--) {
205 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head));
206 if (d_head.sync == 0)
207 break;
208 msleep(20);
209 }
210 if (d_head.sync != 0) {
211 wil_err(wil, "WMI head busy\n");
212 return -EBUSY;
213 }
214 /* next head */
215 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size);
7743882d 216 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
2be7d22f
VK		 217 /* wait till FW finish with previous command */
218 for (retry = 5; retry > 0; retry--) {
219 r->tail = ioread32(wil->csr + HOST_MBOX +
220 offsetof(struct wil6210_mbox_ctl, tx.tail));
221 if (next_head != r->tail)
222 break;
223 msleep(20);
224 }
225 if (next_head == r->tail) {
226 wil_err(wil, "WMI ring full\n");
227 return -EBUSY;
228 }
229 dst = wmi_buffer(wil, d_head.addr);
230 if (!dst) {
231 wil_err(wil, "invalid WMI buffer: 0x%08x\n",
232 le32_to_cpu(d_head.addr));
233 return -EINVAL;
234 }
235 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
236 /* set command */
7743882d
VK		 237 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len);
238 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
2be7d22f 239 sizeof(cmd), true);
7743882d 240 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
2be7d22f
VK		 241 len, true);
242 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
243 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
244 /* mark entry as full */
245 iowrite32(1, wil->csr + HOSTADDR(r->head) +
246 offsetof(struct wil6210_mbox_ring_desc, sync));
247 /* advance next ptr */
248 iowrite32(r->head = next_head, wil->csr + HOST_MBOX +
249 offsetof(struct wil6210_mbox_ctl, tx.head));
250
f988b23f 251 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
98658095 252
2be7d22f
VK		 253 /* interrupt to FW */
254 iowrite32(SW_INT_MBOX, wil->csr + HOST_SW_INT);
255
256 return 0;
257}
258
259int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
260{
261 int rc;
262
263 mutex_lock(&wil->wmi_mutex);
264 rc = __wmi_send(wil, cmdid, buf, len);
265 mutex_unlock(&wil->wmi_mutex);
266
267 return rc;
268}
269
270/*=== Event handlers ===*/
271static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
272{
273 struct net_device *ndev = wil_to_ndev(wil);
274 struct wireless_dev *wdev = wil->wdev;
275 struct wmi_ready_event *evt = d;
b8023177
VK		 276 wil->fw_version = le32_to_cpu(evt->sw_version);
277 wil->n_mids = evt->numof_additional_mids;
2be7d22f 278
15e23124
VK		 279 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version,
280 evt->mac, wil->n_mids);
2be7d22f
VK		 281
282 if (!is_valid_ether_addr(ndev->dev_addr)) {
283 memcpy(ndev->dev_addr, evt->mac, ETH_ALEN);
284 memcpy(ndev->perm_addr, evt->mac, ETH_ALEN);
285 }
286 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version),
b8023177 287 "%d", wil->fw_version);
2be7d22f
VK		 288}
289
290static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d,
291 int len)
292{
15e23124 293 wil_dbg_wmi(wil, "WMI: got FW ready event\n");
2be7d22f
VK		 294
295 set_bit(wil_status_fwready, &wil->status);
296 /* reuse wmi_ready for the firmware ready indication */
297 complete(&wil->wmi_ready);
298}
299
300static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
301{
302 struct wmi_rx_mgmt_packet_event *data = d;
303 struct wiphy *wiphy = wil_to_wiphy(wil);
304 struct ieee80211_mgmt *rx_mgmt_frame =
305 (struct ieee80211_mgmt *)data->payload;
306 int ch_no = data->info.channel+1;
307 u32 freq = ieee80211_channel_to_frequency(ch_no,
308 IEEE80211_BAND_60GHZ);
309 struct ieee80211_channel *channel = ieee80211_get_channel(wiphy, freq);
b8b33a3a 310 s32 signal = data->info.sqi;
2be7d22f
VK		 311 __le16 fc = rx_mgmt_frame->frame_control;
312 u32 d_len = le32_to_cpu(data->info.len);
313 u16 d_status = le16_to_cpu(data->info.status);
314
b8b33a3a
VK		 315 wil_dbg_wmi(wil, "MGMT: channel %d MCS %d SNR %d SQI %d%%\n",
316 data->info.channel, data->info.mcs, data->info.snr,
317 data->info.sqi);
f27dbf78
VK		 318 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
319 le16_to_cpu(fc));
7743882d 320 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
2be7d22f
VK		 321 data->info.qid, data->info.mid, data->info.cid);
322
323 if (!channel) {
324 wil_err(wil, "Frame on unsupported channel\n");
325 return;
326 }
327
328 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
329 struct cfg80211_bss *bss;
8eea944a
VK		 330 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
331 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
332 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
333 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
334 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
335 u.beacon.variable);
336 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
337 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
338 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
339 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
340 ie_len, true);
a0f7845b
VK		 341
342 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
343 d_len, signal, GFP_KERNEL);
2be7d22f 344 if (bss) {
7743882d 345 wil_dbg_wmi(wil, "Added BSS %pM\n",
2be7d22f 346 rx_mgmt_frame->bssid);
5b112d3d 347 cfg80211_put_bss(wiphy, bss);
2be7d22f
VK		 348 } else {
349 wil_err(wil, "cfg80211_inform_bss() failed\n");
350 }
102b1d99
VK		 351 } else {
352 cfg80211_rx_mgmt(wil->wdev, freq, signal,
970fdfa8 353 (void *)rx_mgmt_frame, d_len, 0);
2be7d22f
VK		 354 }
355}
356
357static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
358 void *d, int len)
359{
360 if (wil->scan_request) {
361 struct wmi_scan_complete_event *data = d;
6c2faf09 362 bool aborted = (data->status != WMI_SCAN_SUCCESS);
2be7d22f 363
7743882d 364 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
2a91d7d0
VK		 365 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
366 wil->scan_request, aborted);
367
047e5d74 368 del_timer_sync(&wil->scan_timer);
2be7d22f
VK		 369 cfg80211_scan_done(wil->scan_request, aborted);
370 wil->scan_request = NULL;
371 } else {
372 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
373 }
374}
375
376static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
377{
378 struct net_device *ndev = wil_to_ndev(wil);
379 struct wireless_dev *wdev = wil->wdev;
380 struct wmi_connect_event *evt = d;
381 int ch; /* channel number */
382 struct station_info sinfo;
383 u8 *assoc_req_ie, *assoc_resp_ie;
384 size_t assoc_req_ielen, assoc_resp_ielen;
385 /* capinfo(u16) + listen_interval(u16) + IEs */
386 const size_t assoc_req_ie_offset = sizeof(u16) * 2;
387 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
388 const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
389
390 if (len < sizeof(*evt)) {
391 wil_err(wil, "Connect event too short : %d bytes\n", len);
392 return;
393 }
394 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
395 evt->assoc_resp_len) {
396 wil_err(wil,
397 "Connect event corrupted : %d != %d + %d + %d + %d\n",
398 len, (int)sizeof(*evt), evt->beacon_ie_len,
399 evt->assoc_req_len, evt->assoc_resp_len);
400 return;
401 }
3df2cd36
VK		 402 if (evt->cid >= WIL6210_MAX_CID) {
403 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
404 return;
405 }
406
2be7d22f 407 ch = evt->channel + 1;
7743882d 408 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n",
2be7d22f 409 evt->bssid, ch, evt->cid);
7743882d 410 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 411 evt->assoc_info, len - sizeof(*evt), true);
412
413 /* figure out IE's */
414 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
415 assoc_req_ie_offset];
416 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
417 if (evt->assoc_req_len <= assoc_req_ie_offset) {
418 assoc_req_ie = NULL;
419 assoc_req_ielen = 0;
420 }
421
422 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
423 evt->assoc_req_len +
424 assoc_resp_ie_offset];
425 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
426 if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
427 assoc_resp_ie = NULL;
428 assoc_resp_ielen = 0;
429 }
430
431 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
432 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
b338f74e 433 if (!test_bit(wil_status_fwconnecting, &wil->status)) {
2be7d22f
VK		 434 wil_err(wil, "Not in connecting state\n");
435 return;
436 }
437 del_timer_sync(&wil->connect_timer);
438 cfg80211_connect_result(ndev, evt->bssid,
439 assoc_req_ie, assoc_req_ielen,
440 assoc_resp_ie, assoc_resp_ielen,
441 WLAN_STATUS_SUCCESS, GFP_KERNEL);
442
443 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
444 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
445 memset(&sinfo, 0, sizeof(sinfo));
446
447 sinfo.generation = wil->sinfo_gen++;
448
449 if (assoc_req_ie) {
450 sinfo.assoc_req_ies = assoc_req_ie;
451 sinfo.assoc_req_ies_len = assoc_req_ielen;
452 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES;
453 }
454
455 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
456 }
b338f74e 457 clear_bit(wil_status_fwconnecting, &wil->status);
2be7d22f
VK		 458 set_bit(wil_status_fwconnected, &wil->status);
459
460 /* FIXME FW can transmit only ucast frames to peer */
461 /* FIXME real ring_id instead of hard coded 0 */
3df2cd36
VK		 462 memcpy(wil->sta[evt->cid].addr, evt->bssid, ETH_ALEN);
463 wil->sta[evt->cid].status = wil_sta_conn_pending;
2be7d22f
VK		 464
465 wil->pending_connect_cid = evt->cid;
d81079f1 466 queue_work(wil->wmi_wq_conn, &wil->connect_worker);
2be7d22f
VK		 467}
468
469static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
470 void *d, int len)
471{
472 struct wmi_disconnect_event *evt = d;
473
4d55a0a1
VK		 474 wil_dbg_wmi(wil, "Disconnect %pM reason %d proto %d wmi\n",
475 evt->bssid,
2be7d22f
VK		 476 evt->protocol_reason_status, evt->disconnect_reason);
477
478 wil->sinfo_gen++;
479
097638a0 480 mutex_lock(&wil->mutex);
2be7d22f 481 wil6210_disconnect(wil, evt->bssid);
097638a0 482 mutex_unlock(&wil->mutex);
2be7d22f
VK		 483}
484
485static void wmi_evt_notify(struct wil6210_priv *wil, int id, void *d, int len)
486{
487 struct wmi_notify_req_done_event *evt = d;
488
489 if (len < sizeof(*evt)) {
490 wil_err(wil, "Short NOTIFY event\n");
491 return;
492 }
493
494 wil->stats.tsf = le64_to_cpu(evt->tsf);
495 wil->stats.snr = le32_to_cpu(evt->snr_val);
496 wil->stats.bf_mcs = le16_to_cpu(evt->bf_mcs);
497 wil->stats.my_rx_sector = le16_to_cpu(evt->my_rx_sector);
498 wil->stats.my_tx_sector = le16_to_cpu(evt->my_tx_sector);
499 wil->stats.peer_rx_sector = le16_to_cpu(evt->other_rx_sector);
500 wil->stats.peer_tx_sector = le16_to_cpu(evt->other_tx_sector);
7743882d 501 wil_dbg_wmi(wil, "Link status, MCS %d TSF 0x%016llx\n"
b8b33a3a 502 "BF status 0x%08x SNR 0x%08x SQI %d%%\n"
2be7d22f
VK		 503 "Tx Tpt %d goodput %d Rx goodput %d\n"
504 "Sectors(rx:tx) my %d:%d peer %d:%d\n",
505 wil->stats.bf_mcs, wil->stats.tsf, evt->status,
b8b33a3a 506 wil->stats.snr, evt->sqi, le32_to_cpu(evt->tx_tpt),
2be7d22f
VK		 507 le32_to_cpu(evt->tx_goodput), le32_to_cpu(evt->rx_goodput),
508 wil->stats.my_rx_sector, wil->stats.my_tx_sector,
509 wil->stats.peer_rx_sector, wil->stats.peer_tx_sector);
510}
511
512/*
513 * Firmware reports EAPOL frame using WME event.
514 * Reconstruct Ethernet frame and deliver it via normal Rx
515 */
516static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
517 void *d, int len)
518{
519 struct net_device *ndev = wil_to_ndev(wil);
520 struct wmi_eapol_rx_event *evt = d;
521 u16 eapol_len = le16_to_cpu(evt->eapol_len);
522 int sz = eapol_len + ETH_HLEN;
523 struct sk_buff *skb;
524 struct ethhdr *eth;
c8b78b5f
VK		 525 int cid;
526 struct wil_net_stats *stats = NULL;
2be7d22f 527
7743882d 528 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
2be7d22f
VK		 529 evt->src_mac);
530
c8b78b5f
VK		 531 cid = wil_find_cid(wil, evt->src_mac);
532 if (cid >= 0)
533 stats = &wil->sta[cid].stats;
534
2be7d22f
VK		 535 if (eapol_len > 196) { /* TODO: revisit size limit */
536 wil_err(wil, "EAPOL too large\n");
537 return;
538 }
539
540 skb = alloc_skb(sz, GFP_KERNEL);
541 if (!skb) {
542 wil_err(wil, "Failed to allocate skb\n");
543 return;
544 }
c8b78b5f 545
2be7d22f
VK		 546 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
547 memcpy(eth->h_dest, ndev->dev_addr, ETH_ALEN);
548 memcpy(eth->h_source, evt->src_mac, ETH_ALEN);
549 eth->h_proto = cpu_to_be16(ETH_P_PAE);
550 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
551 skb->protocol = eth_type_trans(skb, ndev);
552 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
553 ndev->stats.rx_packets++;
c8b78b5f
VK		 554 ndev->stats.rx_bytes += sz;
555 if (stats) {
556 stats->rx_packets++;
557 stats->rx_bytes += sz;
558 }
2be7d22f
VK		 559 } else {
560 ndev->stats.rx_dropped++;
c8b78b5f
VK		 561 if (stats)
562 stats->rx_dropped++;
2be7d22f
VK		 563 }
564}
565
3442a504
VK		 566static void wmi_evt_linkup(struct wil6210_priv *wil, int id, void *d, int len)
567{
568 struct net_device *ndev = wil_to_ndev(wil);
569 struct wmi_data_port_open_event *evt = d;
e58c9f70 570 u8 cid = evt->cid;
3442a504 571
e58c9f70 572 wil_dbg_wmi(wil, "Link UP for CID %d\n", cid);
3442a504 573
e58c9f70
VK		 574 if (cid >= ARRAY_SIZE(wil->sta)) {
575 wil_err(wil, "Link UP for invalid CID %d\n", cid);
576 return;
577 }
578
579 wil->sta[cid].data_port_open = true;
3442a504
VK		 580 netif_carrier_on(ndev);
581}
582
583static void wmi_evt_linkdown(struct wil6210_priv *wil, int id, void *d, int len)
584{
585 struct net_device *ndev = wil_to_ndev(wil);
586 struct wmi_wbe_link_down_event *evt = d;
e58c9f70 587 u8 cid = evt->cid;
3442a504
VK		 588
589 wil_dbg_wmi(wil, "Link DOWN for CID %d, reason %d\n",
e58c9f70
VK		 590 cid, le32_to_cpu(evt->reason));
591
592 if (cid >= ARRAY_SIZE(wil->sta)) {
593 wil_err(wil, "Link DOWN for invalid CID %d\n", cid);
594 return;
595 }
3442a504 596
e58c9f70 597 wil->sta[cid].data_port_open = false;
3442a504
VK		 598 netif_carrier_off(ndev);
599}
600
249a382b
VK		 601static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
602 int len)
603{
604 struct wmi_vring_ba_status_event *evt = d;
7b05b0ab
VK		 605 struct wil_sta_info *sta;
606 uint i, cid;
607
608 /* TODO: use Rx BA status, not Tx one */
249a382b
VK		 609
610 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d\n",
7b05b0ab
VK		 611 evt->ringid,
612 evt->status == WMI_BA_AGREED ? "OK" : "N/A",
b4490f42 613 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout));
7b05b0ab
VK		 614
615 if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
616 wil_err(wil, "invalid ring id %d\n", evt->ringid);
617 return;
b4490f42
VK		 618 }
619
7b05b0ab
VK		 620 cid = wil->vring2cid_tid[evt->ringid][0];
621 if (cid >= WIL6210_MAX_CID) {
622 wil_err(wil, "invalid CID %d for vring %d\n", cid, evt->ringid);
623 return;
624 }
625
626 sta = &wil->sta[cid];
627 if (sta->status == wil_sta_unused) {
628 wil_err(wil, "CID %d unused\n", cid);
629 return;
630 }
631
632 wil_dbg_wmi(wil, "BACK for CID %d %pM\n", cid, sta->addr);
633 for (i = 0; i < WIL_STA_TID_NUM; i++) {
634 struct wil_tid_ampdu_rx *r = sta->tid_rx[i];
635 sta->tid_rx[i] = NULL;
636 wil_tid_ampdu_rx_free(wil, r);
637 if ((evt->status == WMI_BA_AGREED) && evt->agg_wsize)
638 sta->tid_rx[i] = wil_tid_ampdu_rx_alloc(wil,
639 evt->agg_wsize, 0);
640 }
249a382b
VK		 641}
642
2be7d22f
VK		 643static const struct {
644 int eventid;
645 void (*handler)(struct wil6210_priv *wil, int eventid,
646 void *data, int data_len);
647} wmi_evt_handlers[] = {
648 {WMI_READY_EVENTID, wmi_evt_ready},
649 {WMI_FW_READY_EVENTID, wmi_evt_fw_ready},
650 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
651 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
652 {WMI_CONNECT_EVENTID, wmi_evt_connect},
653 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
654 {WMI_NOTIFY_REQ_DONE_EVENTID, wmi_evt_notify},
655 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
3442a504
VK		 656 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_linkup},
657 {WMI_WBE_LINKDOWN_EVENTID, wmi_evt_linkdown},
249a382b 658 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
2be7d22f
VK		 659};
660
661/*
662 * Run in IRQ context
663 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
664 * that will be eventually handled by the @wmi_event_worker in the thread
665 * context of thread "wil6210_wmi"
666 */
667void wmi_recv_cmd(struct wil6210_priv *wil)
668{
669 struct wil6210_mbox_ring_desc d_tail;
670 struct wil6210_mbox_hdr hdr;
671 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
672 struct pending_wmi_event *evt;
673 u8 *cmd;
674 void __iomem *src;
675 ulong flags;
a715c7dd 676 unsigned n;
2be7d22f 677
55f7acdd
VK		 678 if (!test_bit(wil_status_reset_done, &wil->status)) {
679 wil_err(wil, "Reset not completed\n");
680 return;
681 }
682
a715c7dd 683 for (n = 0;; n++) {
2be7d22f 684 u16 len;
95266dc0 685 bool q;
2be7d22f
VK		 686
687 r->head = ioread32(wil->csr + HOST_MBOX +
688 offsetof(struct wil6210_mbox_ctl, rx.head));
95266dc0
VK		 689 if (r->tail == r->head)
690 break;
2be7d22f 691
a715c7dd
VK		 692 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
693 r->head, r->tail);
694 /* read cmd descriptor from tail */
2be7d22f
VK		 695 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
696 sizeof(struct wil6210_mbox_ring_desc));
697 if (d_tail.sync == 0) {
698 wil_err(wil, "Mbox evt not owned by FW?\n");
95266dc0 699 break;
2be7d22f
VK		 700 }
701
a715c7dd 702 /* read cmd header from descriptor */
2be7d22f
VK		 703 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
704 wil_err(wil, "Mbox evt at 0x%08x?\n",
705 le32_to_cpu(d_tail.addr));
95266dc0 706 break;
2be7d22f 707 }
2be7d22f 708 len = le16_to_cpu(hdr.len);
a715c7dd
VK		 709 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
710 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
711 hdr.flags);
712
713 /* read cmd buffer from descriptor */
2be7d22f
VK		 714 src = wmi_buffer(wil, d_tail.addr) +
715 sizeof(struct wil6210_mbox_hdr);
716 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
717 event.wmi) + len, 4),
718 GFP_KERNEL);
14f8dc49 719 if (!evt)
95266dc0 720 break;
14f8dc49 721
2be7d22f
VK		 722 evt->event.hdr = hdr;
723 cmd = (void *)&evt->event.wmi;
724 wil_memcpy_fromio_32(cmd, src, len);
725 /* mark entry as empty */
726 iowrite32(0, wil->csr + HOSTADDR(r->tail) +
727 offsetof(struct wil6210_mbox_ring_desc, sync));
728 /* indicate */
2be7d22f
VK		 729 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
730 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
f988b23f
VK		 731 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi;
732 u16 id = le16_to_cpu(wmi->id);
733 u32 tstamp = le32_to_cpu(wmi->timestamp);
734 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
735 id, wmi->mid, tstamp);
736 trace_wil6210_wmi_event(wmi, &wmi[1],
737 len - sizeof(*wmi));
2be7d22f 738 }
7743882d 739 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 740 &evt->event.hdr, sizeof(hdr) + len, true);
741
742 /* advance tail */
743 r->tail = r->base + ((r->tail - r->base +
744 sizeof(struct wil6210_mbox_ring_desc)) % r->size);
745 iowrite32(r->tail, wil->csr + HOST_MBOX +
746 offsetof(struct wil6210_mbox_ctl, rx.tail));
747
748 /* add to the pending list */
749 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
750 list_add_tail(&evt->list, &wil->pending_wmi_ev);
751 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
95266dc0
VK		 752 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
753 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
2be7d22f 754 }
95266dc0
VK		 755 /* normally, 1 event per IRQ should be processed */
756 wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n);
2be7d22f
VK		 757}
758
759int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
760 u16 reply_id, void *reply, u8 reply_size, int to_msec)
761{
762 int rc;
763 int remain;
764
765 mutex_lock(&wil->wmi_mutex);
766
767 rc = __wmi_send(wil, cmdid, buf, len);
768 if (rc)
769 goto out;
770
771 wil->reply_id = reply_id;
772 wil->reply_buf = reply;
773 wil->reply_size = reply_size;
774 remain = wait_for_completion_timeout(&wil->wmi_ready,
775 msecs_to_jiffies(to_msec));
776 if (0 == remain) {
777 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
778 cmdid, reply_id, to_msec);
779 rc = -ETIME;
780 } else {
7743882d 781 wil_dbg_wmi(wil,
2be7d22f
VK		 782 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
783 cmdid, reply_id,
784 to_msec - jiffies_to_msecs(remain));
785 }
786 wil->reply_id = 0;
787 wil->reply_buf = NULL;
788 wil->reply_size = 0;
789 out:
790 mutex_unlock(&wil->wmi_mutex);
791
792 return rc;
793}
794
795int wmi_echo(struct wil6210_priv *wil)
796{
797 struct wmi_echo_cmd cmd = {
798 .value = cpu_to_le32(0x12345678),
799 };
800
801 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
802 WMI_ECHO_RSP_EVENTID, NULL, 0, 20);
803}
804
805int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
806{
807 struct wmi_set_mac_address_cmd cmd;
808
809 memcpy(cmd.mac, addr, ETH_ALEN);
810
7743882d 811 wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
2be7d22f
VK		 812
813 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
814}
815
b8023177 816int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype, u8 chan)
2be7d22f 817{
b8023177
VK		 818 int rc;
819
820 struct wmi_pcp_start_cmd cmd = {
2be7d22f
VK		 821 .bcon_interval = cpu_to_le16(bi),
822 .network_type = wmi_nettype,
823 .disable_sec_offload = 1,
adc2d122 824 .channel = chan - 1,
6c2faf09 825 .pcp_max_assoc_sta = WIL6210_MAX_CID,
2be7d22f 826 };
b8023177
VK		 827 struct {
828 struct wil6210_mbox_hdr_wmi wmi;
829 struct wmi_pcp_started_event evt;
830 } __packed reply;
2be7d22f
VK		 831
832 if (!wil->secure_pcp)
833 cmd.disable_sec = 1;
834
8b5c7f6c
VK		 835 /*
836 * Processing time may be huge, in case of secure AP it takes about
837 * 3500ms for FW to start AP
838 */
b8023177 839 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
8b5c7f6c 840 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
b8023177
VK		 841 if (rc)
842 return rc;
843
844 if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
845 rc = -EINVAL;
846
847 return rc;
848}
849
850int wmi_pcp_stop(struct wil6210_priv *wil)
851{
852 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
853 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
2be7d22f
VK		 854}
855
856int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
857{
858 struct wmi_set_ssid_cmd cmd = {
859 .ssid_len = cpu_to_le32(ssid_len),
860 };
861
862 if (ssid_len > sizeof(cmd.ssid))
863 return -EINVAL;
864
865 memcpy(cmd.ssid, ssid, ssid_len);
866
867 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
868}
869
870int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
871{
872 int rc;
873 struct {
874 struct wil6210_mbox_hdr_wmi wmi;
875 struct wmi_set_ssid_cmd cmd;
876 } __packed reply;
877 int len; /* reply.cmd.ssid_len in CPU order */
878
879 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
880 &reply, sizeof(reply), 20);
881 if (rc)
882 return rc;
883
884 len = le32_to_cpu(reply.cmd.ssid_len);
885 if (len > sizeof(reply.cmd.ssid))
886 return -EINVAL;
887
888 *ssid_len = len;
889 memcpy(ssid, reply.cmd.ssid, len);
890
891 return 0;
892}
893
894int wmi_set_channel(struct wil6210_priv *wil, int channel)
895{
896 struct wmi_set_pcp_channel_cmd cmd = {
897 .channel = channel - 1,
898 };
899
900 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
901}
902
903int wmi_get_channel(struct wil6210_priv *wil, int *channel)
904{
905 int rc;
906 struct {
907 struct wil6210_mbox_hdr_wmi wmi;
908 struct wmi_set_pcp_channel_cmd cmd;
909 } __packed reply;
910
911 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
912 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
913 if (rc)
914 return rc;
915
916 if (reply.cmd.channel > 3)
917 return -EINVAL;
918
919 *channel = reply.cmd.channel + 1;
920
921 return 0;
922}
923
b8023177
VK		 924int wmi_p2p_cfg(struct wil6210_priv *wil, int channel)
925{
926 struct wmi_p2p_cfg_cmd cmd = {
927 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD,
928 .channel = channel - 1,
929 };
930
931 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd));
932}
933
2be7d22f
VK		 934int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
935 const void *mac_addr)
936{
937 struct wmi_delete_cipher_key_cmd cmd = {
938 .key_index = key_index,
939 };
940
941 if (mac_addr)
942 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
943
944 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
945}
946
947int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
948 const void *mac_addr, int key_len, const void *key)
949{
950 struct wmi_add_cipher_key_cmd cmd = {
951 .key_index = key_index,
952 .key_usage = WMI_KEY_USE_PAIRWISE,
953 .key_len = key_len,
954 };
955
956 if (!key || (key_len > sizeof(cmd.key)))
957 return -EINVAL;
958
959 memcpy(cmd.key, key, key_len);
960 if (mac_addr)
961 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
962
963 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
964}
965
966int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
967{
968 int rc;
969 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
970 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
14f8dc49 971 if (!cmd)
2be7d22f 972 return -ENOMEM;
2be7d22f
VK		 973
974 cmd->mgmt_frm_type = type;
975 /* BUG: FW API define ieLen as u8. Will fix FW */
976 cmd->ie_len = cpu_to_le16(ie_len);
977 memcpy(cmd->ie_info, ie, ie_len);
03866e7d 978 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
2be7d22f
VK		 979 kfree(cmd);
980
981 return rc;
982}
983
1647f12f
VK		 984/**
985 * wmi_rxon - turn radio on/off
986 * @on: turn on if true, off otherwise
987 *
988 * Only switch radio. Channel should be set separately.
989 * No timeout for rxon - radio turned on forever unless some other call
990 * turns it off
991 */
992int wmi_rxon(struct wil6210_priv *wil, bool on)
993{
994 int rc;
995 struct {
996 struct wil6210_mbox_hdr_wmi wmi;
997 struct wmi_listen_started_event evt;
998 } __packed reply;
999
1000 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
1001
1002 if (on) {
1003 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1004 WMI_LISTEN_STARTED_EVENTID,
1005 &reply, sizeof(reply), 100);
1006 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1007 rc = -EINVAL;
1008 } else {
1009 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1010 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1011 }
1012
1013 return rc;
1014}
1015
47e19af9
VK		 1016int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1017{
1018 struct wireless_dev *wdev = wil->wdev;
1019 struct net_device *ndev = wil_to_ndev(wil);
1020 struct wmi_cfg_rx_chain_cmd cmd = {
1021 .action = WMI_RX_CHAIN_ADD,
1022 .rx_sw_ring = {
1023 .max_mpdu_size = cpu_to_le16(RX_BUF_LEN),
1024 .ring_mem_base = cpu_to_le64(vring->pa),
1025 .ring_size = cpu_to_le16(vring->size),
1026 },
1027 .mid = 0, /* TODO - what is it? */
1028 .decap_trans_type = WMI_DECAP_TYPE_802_3,
b4490f42 1029 .reorder_type = WMI_RX_SW_REORDER,
47e19af9
VK		 1030 };
1031 struct {
1032 struct wil6210_mbox_hdr_wmi wmi;
1033 struct wmi_cfg_rx_chain_done_event evt;
1034 } __packed evt;
1035 int rc;
1036
1037 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1038 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1039
1040 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1041 if (ch)
1042 cmd.sniffer_cfg.channel = ch->hw_value - 1;
1043 cmd.sniffer_cfg.phy_info_mode =
1044 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1045 cmd.sniffer_cfg.phy_support =
1046 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
1047 ? WMI_SNIFFER_CP : WMI_SNIFFER_DP);
504937d4
KE		 1048 } else {
1049 /* Initialize offload (in non-sniffer mode).
1050 * Linux IP stack always calculates IP checksum
1051 * HW always calculate TCP/UDP checksum
1052 */
1053 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
47e19af9
VK		 1054 }
1055 /* typical time for secure PCP is 840ms */
1056 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1057 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1058 if (rc)
1059 return rc;
1060
1061 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1062
7743882d 1063 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
47e19af9
VK		 1064 le32_to_cpu(evt.evt.status), vring->hwtail);
1065
1066 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1067 rc = -EINVAL;
1068
1069 return rc;
1070}
1071
1a2780e0
VK		 1072int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_m, u32 *t_r)
1073{
1074 int rc;
1075 struct wmi_temp_sense_cmd cmd = {
1076 .measure_marlon_m_en = cpu_to_le32(!!t_m),
1077 .measure_marlon_r_en = cpu_to_le32(!!t_r),
1078 };
1079 struct {
1080 struct wil6210_mbox_hdr_wmi wmi;
1081 struct wmi_temp_sense_done_event evt;
1082 } __packed reply;
1083
1084 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1085 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1086 if (rc)
1087 return rc;
1088
1089 if (t_m)
1090 *t_m = le32_to_cpu(reply.evt.marlon_m_t1000);
1091 if (t_r)
1092 *t_r = le32_to_cpu(reply.evt.marlon_r_t1000);
1093
1094 return 0;
1095}
1096
4d55a0a1
VK		 1097int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason)
1098{
1099 struct wmi_disconnect_sta_cmd cmd = {
1100 .disconnect_reason = cpu_to_le16(reason),
1101 };
1102 memcpy(cmd.dst_mac, mac, ETH_ALEN);
1103
1104 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason);
1105
1106 return wmi_send(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd));
1107}
1108
2be7d22f
VK		 1109void wmi_event_flush(struct wil6210_priv *wil)
1110{
1111 struct pending_wmi_event *evt, *t;
1112
7743882d 1113 wil_dbg_wmi(wil, "%s()\n", __func__);
2be7d22f
VK		 1114
1115 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1116 list_del(&evt->list);
1117 kfree(evt);
1118 }
1119}
1120
1121static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1122 void *d, int len)
1123{
1124 uint i;
1125
1126 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1127 if (wmi_evt_handlers[i].eventid == id) {
1128 wmi_evt_handlers[i].handler(wil, id, d, len);
1129 return true;
1130 }
1131 }
1132
1133 return false;
1134}
1135
1136static void wmi_event_handle(struct wil6210_priv *wil,
1137 struct wil6210_mbox_hdr *hdr)
1138{
1139 u16 len = le16_to_cpu(hdr->len);
1140
1141 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
1142 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
1143 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]);
1144 void *evt_data = (void *)(&wmi[1]);
1145 u16 id = le16_to_cpu(wmi->id);
1146 /* check if someone waits for this event */
1147 if (wil->reply_id && wil->reply_id == id) {
1148 if (wil->reply_buf) {
1149 memcpy(wil->reply_buf, wmi,
1150 min(len, wil->reply_size));
1151 } else {
1152 wmi_evt_call_handler(wil, id, evt_data,
1153 len - sizeof(*wmi));
1154 }
7743882d 1155 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id);
2be7d22f
VK		 1156 complete(&wil->wmi_ready);
1157 return;
1158 }
1159 /* unsolicited event */
1160 /* search for handler */
1161 if (!wmi_evt_call_handler(wil, id, evt_data,
1162 len - sizeof(*wmi))) {
1163 wil_err(wil, "Unhandled event 0x%04x\n", id);
1164 }
1165 } else {
1166 wil_err(wil, "Unknown event type\n");
1167 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1168 hdr, sizeof(*hdr) + len, true);
1169 }
1170}
1171
1172/*
1173 * Retrieve next WMI event from the pending list
1174 */
1175static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1176{
1177 ulong flags;
1178 struct list_head *ret = NULL;
1179
1180 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1181
1182 if (!list_empty(&wil->pending_wmi_ev)) {
1183 ret = wil->pending_wmi_ev.next;
1184 list_del(ret);
1185 }
1186
1187 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1188
1189 return ret;
1190}
1191
1192/*
1193 * Handler for the WMI events
1194 */
1195void wmi_event_worker(struct work_struct *work)
1196{
1197 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1198 wmi_event_worker);
1199 struct pending_wmi_event *evt;
1200 struct list_head *lh;
1201
1202 while ((lh = next_wmi_ev(wil)) != NULL) {
1203 evt = list_entry(lh, struct pending_wmi_event, list);
1204 wmi_event_handle(wil, &evt->event.hdr);
1205 kfree(evt);
1206 }
1207}
Linux kernel - Deliverables
This page took 0.201396 seconds and 5 git commands to generate.