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wil6210: fix no_fw_recovery mode with change_virtual_intf
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / wmi.c
CommitLineData
2be7d22f 1/*
0916d9f2 2 * Copyright (c) 2012-2016 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
327755fb 26static uint max_assoc_sta = WIL6210_MAX_CID;
1eb9d1e5
DL		 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
3a3def8d
VK		 30int agg_wsize; /* = 0; */
31module_param(agg_wsize, int, S_IRUGO | S_IWUSR);
32MODULE_PARM_DESC(agg_wsize, " Window size for Tx Block Ack after connect;"
33 " 0 - use default; < 0 - don't auto-establish");
34
2be7d22f
VK		 35/**
36 * WMI event receiving - theory of operations
37 *
38 * When firmware about to report WMI event, it fills memory area
39 * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for
40 * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler.
41 *
42 * @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the
43 * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up
44 * and handles events within the @wmi_event_worker. Every event get detached
45 * from list, processed and deleted.
46 *
47 * Purpose for this mechanism is to release IRQ thread; otherwise,
48 * if WMI event handling involves another WMI command flow, this 2-nd flow
49 * won't be completed because of blocked IRQ thread.
50 */
51
52/**
53 * Addressing - theory of operations
54 *
55 * There are several buses present on the WIL6210 card.
56 * Same memory areas are visible at different address on
57 * the different busses. There are 3 main bus masters:
58 * - MAC CPU (ucode)
59 * - User CPU (firmware)
60 * - AHB (host)
61 *
62 * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing
63 * AHB addresses starting from 0x880000
64 *
65 * Internally, firmware uses addresses that allows faster access but
66 * are invisible from the host. To read from these addresses, alternative
67 * AHB address must be used.
68 *
69 * Memory mapping
70 * Linker address PCI/Host address
71 * 0x880000 .. 0xa80000 2Mb BAR0
72 * 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM
73 * 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH
74 */
75
76/**
77 * @fw_mapping provides memory remapping table
b541d0a0
VK		 78 *
79 * array size should be in sync with the declaration in the wil6210.h
2be7d22f 80 */
b541d0a0
VK		 81const struct fw_map fw_mapping[] = {
82 {0x000000, 0x040000, 0x8c0000, "fw_code"}, /* FW code RAM 256k */
83 {0x800000, 0x808000, 0x900000, "fw_data"}, /* FW data RAM 32k */
84 {0x840000, 0x860000, 0x908000, "fw_peri"}, /* periph. data RAM 128k */
85 {0x880000, 0x88a000, 0x880000, "rgf"}, /* various RGF 40k */
72269146 86 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl"}, /* AGC table 4k */
b541d0a0 87 {0x88b000, 0x88c000, 0x88b000, "rgf_ext"}, /* Pcie_ext_rgf 4k */
0fd37ff8 88 {0x88c000, 0x88c200, 0x88c000, "mac_rgf_ext"}, /* mac_ext_rgf 512b */
b541d0a0 89 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */
2be7d22f
VK		 90 /*
91 * 920000..930000 ucode code RAM
92 * 930000..932000 ucode data RAM
af6b48db 93 * 932000..949000 back-door debug data
2be7d22f
VK		 94 */
95};
96
97/**
98 * return AHB address for given firmware/ucode internal (linker) address
99 * @x - internal address
100 * If address have no valid AHB mapping, return 0
101 */
102static u32 wmi_addr_remap(u32 x)
103{
104 uint i;
105
106 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
107 if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to))
108 return x + fw_mapping[i].host - fw_mapping[i].from;
109 }
110
111 return 0;
112}
113
114/**
115 * Check address validity for WMI buffer; remap if needed
116 * @ptr - internal (linker) fw/ucode address
117 *
118 * Valid buffer should be DWORD aligned
119 *
120 * return address for accessing buffer from the host;
121 * if buffer is not valid, return NULL.
122 */
123void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_)
124{
125 u32 off;
126 u32 ptr = le32_to_cpu(ptr_);
127
128 if (ptr % 4)
129 return NULL;
130
131 ptr = wmi_addr_remap(ptr);
132 if (ptr < WIL6210_FW_HOST_OFF)
133 return NULL;
134
135 off = HOSTADDR(ptr);
136 if (off > WIL6210_MEM_SIZE - 4)
137 return NULL;
138
139 return wil->csr + off;
140}
141
142/**
143 * Check address validity
144 */
145void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr)
146{
147 u32 off;
148
149 if (ptr % 4)
150 return NULL;
151
152 if (ptr < WIL6210_FW_HOST_OFF)
153 return NULL;
154
155 off = HOSTADDR(ptr);
156 if (off > WIL6210_MEM_SIZE - 4)
157 return NULL;
158
159 return wil->csr + off;
160}
161
162int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
163 struct wil6210_mbox_hdr *hdr)
164{
165 void __iomem *src = wmi_buffer(wil, ptr);
8fe59627 166
2be7d22f
VK		 167 if (!src)
168 return -EINVAL;
169
170 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
171
172 return 0;
173}
174
175static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
176{
177 struct {
178 struct wil6210_mbox_hdr hdr;
b874ddec 179 struct wmi_cmd_hdr wmi;
2be7d22f
VK		 180 } __packed cmd = {
181 .hdr = {
182 .type = WIL_MBOX_HDR_TYPE_WMI,
183 .flags = 0,
184 .len = cpu_to_le16(sizeof(cmd.wmi) + len),
185 },
186 .wmi = {
f988b23f 187 .mid = 0,
b874ddec 188 .command_id = cpu_to_le16(cmdid),
2be7d22f
VK		 189 },
190 };
191 struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx;
192 struct wil6210_mbox_ring_desc d_head;
193 u32 next_head;
194 void __iomem *dst;
195 void __iomem *head = wmi_addr(wil, r->head);
196 uint retry;
197
198 if (sizeof(cmd) + len > r->entry_size) {
199 wil_err(wil, "WMI size too large: %d bytes, max is %d\n",
200 (int)(sizeof(cmd) + len), r->entry_size);
201 return -ERANGE;
2be7d22f
VK		 202 }
203
204 might_sleep();
205
9419b6a2 206 if (!test_bit(wil_status_fwready, wil->status)) {
15e23124 207 wil_err(wil, "WMI: cannot send command while FW not ready\n");
2be7d22f
VK		 208 return -EAGAIN;
209 }
210
211 if (!head) {
212 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head);
213 return -EINVAL;
214 }
215 /* read Tx head till it is not busy */
216 for (retry = 5; retry > 0; retry--) {
217 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head));
218 if (d_head.sync == 0)
219 break;
220 msleep(20);
221 }
222 if (d_head.sync != 0) {
223 wil_err(wil, "WMI head busy\n");
224 return -EBUSY;
225 }
226 /* next head */
227 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size);
7743882d 228 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
2be7d22f
VK		 229 /* wait till FW finish with previous command */
230 for (retry = 5; retry > 0; retry--) {
452133a7
ME		 231 if (!test_bit(wil_status_fwready, wil->status)) {
232 wil_err(wil, "WMI: cannot send command while FW not ready\n");
233 return -EAGAIN;
234 }
b9eeb512
VK		 235 r->tail = wil_r(wil, RGF_MBOX +
236 offsetof(struct wil6210_mbox_ctl, tx.tail));
2be7d22f
VK		 237 if (next_head != r->tail)
238 break;
239 msleep(20);
240 }
241 if (next_head == r->tail) {
242 wil_err(wil, "WMI ring full\n");
243 return -EBUSY;
244 }
245 dst = wmi_buffer(wil, d_head.addr);
246 if (!dst) {
247 wil_err(wil, "invalid WMI buffer: 0x%08x\n",
248 le32_to_cpu(d_head.addr));
249 return -EINVAL;
250 }
251 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
252 /* set command */
7743882d
VK		 253 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len);
254 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
2be7d22f 255 sizeof(cmd), true);
7743882d 256 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
2be7d22f
VK		 257 len, true);
258 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
259 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
260 /* mark entry as full */
b9eeb512 261 wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1);
2be7d22f 262 /* advance next ptr */
b9eeb512
VK		 263 wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head),
264 r->head = next_head);
2be7d22f 265
f988b23f 266 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
98658095 267
2be7d22f 268 /* interrupt to FW */
b9eeb512
VK		 269 wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS),
270 SW_INT_MBOX);
2be7d22f
VK		 271
272 return 0;
273}
274
275int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
276{
277 int rc;
278
279 mutex_lock(&wil->wmi_mutex);
280 rc = __wmi_send(wil, cmdid, buf, len);
281 mutex_unlock(&wil->wmi_mutex);
282
283 return rc;
284}
285
286/*=== Event handlers ===*/
287static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
288{
2be7d22f
VK		 289 struct wireless_dev *wdev = wil->wdev;
290 struct wmi_ready_event *evt = d;
8fe59627 291
b8023177
VK		 292 wil->fw_version = le32_to_cpu(evt->sw_version);
293 wil->n_mids = evt->numof_additional_mids;
2be7d22f 294
15e23124
VK		 295 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version,
296 evt->mac, wil->n_mids);
2cd0f021 297 /* ignore MAC address, we already have it from the boot loader */
2be7d22f 298 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version),
b8023177 299 "%d", wil->fw_version);
2be7d22f 300
c33407a8 301 wil_set_recovery_state(wil, fw_recovery_idle);
9419b6a2 302 set_bit(wil_status_fwready, wil->status);
59502647 303 /* let the reset sequence continue */
2be7d22f
VK		 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;
90d89e9a
VK		 313 int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload);
314 int ch_no;
315 u32 freq;
316 struct ieee80211_channel *channel;
317 s32 signal;
318 __le16 fc;
319 u32 d_len;
320 u16 d_status;
321
322 if (flen < 0) {
323 wil_err(wil, "MGMT Rx: short event, len %d\n", len);
324 return;
325 }
326
327 d_len = le32_to_cpu(data->info.len);
328 if (d_len != flen) {
329 wil_err(wil,
330 "MGMT Rx: length mismatch, d_len %d should be %d\n",
331 d_len, flen);
332 return;
333 }
334
335 ch_no = data->info.channel + 1;
336 freq = ieee80211_channel_to_frequency(ch_no, IEEE80211_BAND_60GHZ);
337 channel = ieee80211_get_channel(wiphy, freq);
338 signal = data->info.sqi;
339 d_status = le16_to_cpu(data->info.status);
340 fc = rx_mgmt_frame->frame_control;
341
342 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n",
b8b33a3a
VK		 343 data->info.channel, data->info.mcs, data->info.snr,
344 data->info.sqi);
f27dbf78
VK		 345 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
346 le16_to_cpu(fc));
7743882d 347 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
2be7d22f 348 data->info.qid, data->info.mid, data->info.cid);
90d89e9a
VK		 349 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame,
350 d_len, true);
2be7d22f
VK		 351
352 if (!channel) {
353 wil_err(wil, "Frame on unsupported channel\n");
354 return;
355 }
356
357 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
358 struct cfg80211_bss *bss;
8eea944a
VK		 359 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
360 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
361 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
362 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
363 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
364 u.beacon.variable);
365 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
366 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
367 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
368 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
369 ie_len, true);
a0f7845b 370
e6d68341
DL		 371 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
372
a0f7845b
VK		 373 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
374 d_len, signal, GFP_KERNEL);
2be7d22f 375 if (bss) {
7743882d 376 wil_dbg_wmi(wil, "Added BSS %pM\n",
2be7d22f 377 rx_mgmt_frame->bssid);
5b112d3d 378 cfg80211_put_bss(wiphy, bss);
2be7d22f 379 } else {
5bc8c1f2 380 wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
2be7d22f 381 }
102b1d99 382 } else {
4332cac1
LD		 383 mutex_lock(&wil->p2p_wdev_mutex);
384 cfg80211_rx_mgmt(wil->radio_wdev, freq, signal,
970fdfa8 385 (void *)rx_mgmt_frame, d_len, 0);
4332cac1 386 mutex_unlock(&wil->p2p_wdev_mutex);
2be7d22f
VK		 387 }
388}
389
90d89e9a
VK		 390static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
391{
392 struct wmi_tx_mgmt_packet_event *data = d;
393 struct ieee80211_mgmt *mgmt_frame =
394 (struct ieee80211_mgmt *)data->payload;
395 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload);
396
397 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame,
398 flen, true);
399}
400
2be7d22f
VK		 401static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
402 void *d, int len)
403{
404 if (wil->scan_request) {
405 struct wmi_scan_complete_event *data = d;
6c2faf09 406 bool aborted = (data->status != WMI_SCAN_SUCCESS);
2be7d22f 407
7743882d 408 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
2a91d7d0
VK		 409 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
410 wil->scan_request, aborted);
411
047e5d74 412 del_timer_sync(&wil->scan_timer);
4332cac1 413 mutex_lock(&wil->p2p_wdev_mutex);
2be7d22f 414 cfg80211_scan_done(wil->scan_request, aborted);
4332cac1
LD		 415 wil->radio_wdev = wil->wdev;
416 mutex_unlock(&wil->p2p_wdev_mutex);
2be7d22f
VK		 417 wil->scan_request = NULL;
418 } else {
419 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
420 }
421}
422
423static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
424{
425 struct net_device *ndev = wil_to_ndev(wil);
426 struct wireless_dev *wdev = wil->wdev;
427 struct wmi_connect_event *evt = d;
428 int ch; /* channel number */
429 struct station_info sinfo;
430 u8 *assoc_req_ie, *assoc_resp_ie;
431 size_t assoc_req_ielen, assoc_resp_ielen;
432 /* capinfo(u16) + listen_interval(u16) + IEs */
433 const size_t assoc_req_ie_offset = sizeof(u16) * 2;
434 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
435 const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
0916d9f2 436 int rc;
2be7d22f
VK		 437
438 if (len < sizeof(*evt)) {
439 wil_err(wil, "Connect event too short : %d bytes\n", len);
440 return;
441 }
442 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
443 evt->assoc_resp_len) {
444 wil_err(wil,
445 "Connect event corrupted : %d != %d + %d + %d + %d\n",
446 len, (int)sizeof(*evt), evt->beacon_ie_len,
447 evt->assoc_req_len, evt->assoc_resp_len);
448 return;
449 }
3df2cd36
VK		 450 if (evt->cid >= WIL6210_MAX_CID) {
451 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
452 return;
453 }
454
2be7d22f 455 ch = evt->channel + 1;
0916d9f2
ME		 456 wil_info(wil, "Connect %pM channel [%d] cid %d\n",
457 evt->bssid, ch, evt->cid);
7743882d 458 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 459 evt->assoc_info, len - sizeof(*evt), true);
460
461 /* figure out IE's */
462 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
463 assoc_req_ie_offset];
464 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
465 if (evt->assoc_req_len <= assoc_req_ie_offset) {
466 assoc_req_ie = NULL;
467 assoc_req_ielen = 0;
468 }
469
470 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
471 evt->assoc_req_len +
472 assoc_resp_ie_offset];
473 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
474 if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
475 assoc_resp_ie = NULL;
476 assoc_resp_ielen = 0;
477 }
478
0916d9f2
ME		 479 mutex_lock(&wil->mutex);
480 if (test_bit(wil_status_resetting, wil->status) ||
481 !test_bit(wil_status_fwready, wil->status)) {
482 wil_err(wil, "status_resetting, cancel connect event, CID %d\n",
483 evt->cid);
484 mutex_unlock(&wil->mutex);
485 /* no need for cleanup, wil_reset will do that */
486 return;
487 }
488
2be7d22f
VK		 489 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
490 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
9419b6a2 491 if (!test_bit(wil_status_fwconnecting, wil->status)) {
2be7d22f 492 wil_err(wil, "Not in connecting state\n");
0916d9f2 493 mutex_unlock(&wil->mutex);
2be7d22f
VK		 494 return;
495 }
496 del_timer_sync(&wil->connect_timer);
3d287fb3
ME		 497 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
498 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
499 if (wil->sta[evt->cid].status != wil_sta_unused) {
500 wil_err(wil, "%s: AP: Invalid status %d for CID %d\n",
501 __func__, wil->sta[evt->cid].status, evt->cid);
502 mutex_unlock(&wil->mutex);
503 return;
504 }
0916d9f2
ME		 505 }
506
507 /* FIXME FW can transmit only ucast frames to peer */
508 /* FIXME real ring_id instead of hard coded 0 */
509 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid);
510 wil->sta[evt->cid].status = wil_sta_conn_pending;
2be7d22f 511
0916d9f2
ME		 512 rc = wil_tx_init(wil, evt->cid);
513 if (rc) {
514 wil_err(wil, "%s: config tx vring failed for CID %d, rc (%d)\n",
515 __func__, evt->cid, rc);
516 wmi_disconnect_sta(wil, wil->sta[evt->cid].addr,
517 WLAN_REASON_UNSPECIFIED, false);
518 } else {
519 wil_info(wil, "%s: successful connection to CID %d\n",
520 __func__, evt->cid);
521 }
522
523 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
524 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
525 if (rc) {
526 netif_tx_stop_all_queues(ndev);
527 netif_carrier_off(ndev);
528 wil_err(wil,
529 "%s: cfg80211_connect_result with failure\n",
530 __func__);
531 cfg80211_connect_result(ndev, evt->bssid, NULL, 0,
532 NULL, 0,
533 WLAN_STATUS_UNSPECIFIED_FAILURE,
534 GFP_KERNEL);
535 goto out;
536 } else {
537 cfg80211_connect_result(ndev, evt->bssid,
538 assoc_req_ie, assoc_req_ielen,
539 assoc_resp_ie, assoc_resp_ielen,
540 WLAN_STATUS_SUCCESS,
541 GFP_KERNEL);
542 }
2be7d22f
VK		 543 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
544 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
0916d9f2
ME		 545 if (rc)
546 goto out;
547
2be7d22f
VK		 548 memset(&sinfo, 0, sizeof(sinfo));
549
550 sinfo.generation = wil->sinfo_gen++;
551
552 if (assoc_req_ie) {
553 sinfo.assoc_req_ies = assoc_req_ie;
554 sinfo.assoc_req_ies_len = assoc_req_ielen;
2be7d22f
VK		 555 }
556
557 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
0916d9f2
ME		 558 } else {
559 wil_err(wil, "%s: unhandled iftype %d for CID %d\n",
560 __func__, wdev->iftype, evt->cid);
561 goto out;
2be7d22f 562 }
2be7d22f 563
0916d9f2
ME		 564 wil->sta[evt->cid].status = wil_sta_connected;
565 set_bit(wil_status_fwconnected, wil->status);
566 netif_tx_wake_all_queues(ndev);
2be7d22f 567
0916d9f2
ME		 568out:
569 if (rc)
570 wil->sta[evt->cid].status = wil_sta_unused;
571 clear_bit(wil_status_fwconnecting, wil->status);
572 mutex_unlock(&wil->mutex);
2be7d22f
VK		 573}
574
575static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
576 void *d, int len)
577{
578 struct wmi_disconnect_event *evt = d;
4821e6d8 579 u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
2be7d22f 580
0916d9f2
ME		 581 wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
582 evt->bssid, reason_code, evt->disconnect_reason);
2be7d22f
VK		 583
584 wil->sinfo_gen++;
585
097638a0 586 mutex_lock(&wil->mutex);
4821e6d8 587 wil6210_disconnect(wil, evt->bssid, reason_code, true);
097638a0 588 mutex_unlock(&wil->mutex);
2be7d22f
VK		 589}
590
2be7d22f
VK		 591/*
592 * Firmware reports EAPOL frame using WME event.
593 * Reconstruct Ethernet frame and deliver it via normal Rx
594 */
595static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
596 void *d, int len)
597{
598 struct net_device *ndev = wil_to_ndev(wil);
599 struct wmi_eapol_rx_event *evt = d;
600 u16 eapol_len = le16_to_cpu(evt->eapol_len);
601 int sz = eapol_len + ETH_HLEN;
602 struct sk_buff *skb;
603 struct ethhdr *eth;
c8b78b5f
VK		 604 int cid;
605 struct wil_net_stats *stats = NULL;
2be7d22f 606
7743882d 607 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
2be7d22f
VK		 608 evt->src_mac);
609
c8b78b5f
VK		 610 cid = wil_find_cid(wil, evt->src_mac);
611 if (cid >= 0)
612 stats = &wil->sta[cid].stats;
613
2be7d22f
VK		 614 if (eapol_len > 196) { /* TODO: revisit size limit */
615 wil_err(wil, "EAPOL too large\n");
616 return;
617 }
618
619 skb = alloc_skb(sz, GFP_KERNEL);
620 if (!skb) {
621 wil_err(wil, "Failed to allocate skb\n");
622 return;
623 }
c8b78b5f 624
2be7d22f 625 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
a82553bb
VK		 626 ether_addr_copy(eth->h_dest, ndev->dev_addr);
627 ether_addr_copy(eth->h_source, evt->src_mac);
2be7d22f
VK		 628 eth->h_proto = cpu_to_be16(ETH_P_PAE);
629 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
630 skb->protocol = eth_type_trans(skb, ndev);
631 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
632 ndev->stats.rx_packets++;
c8b78b5f
VK		 633 ndev->stats.rx_bytes += sz;
634 if (stats) {
635 stats->rx_packets++;
636 stats->rx_bytes += sz;
637 }
2be7d22f
VK		 638 } else {
639 ndev->stats.rx_dropped++;
c8b78b5f
VK		 640 if (stats)
641 stats->rx_dropped++;
2be7d22f
VK		 642 }
643}
644
230d8442 645static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len)
3a124ed6 646{
230d8442
VK		 647 struct wmi_vring_en_event *evt = d;
648 u8 vri = evt->vring_index;
3a124ed6 649
230d8442 650 wil_dbg_wmi(wil, "Enable vring %d\n", vri);
3a124ed6 651
230d8442
VK		 652 if (vri >= ARRAY_SIZE(wil->vring_tx)) {
653 wil_err(wil, "Enable for invalid vring %d\n", vri);
e58c9f70
VK		 654 return;
655 }
230d8442
VK		 656 wil->vring_tx_data[vri].dot1x_open = true;
657 if (vri == wil->bcast_vring) /* no BA for bcast */
e58c9f70 658 return;
230d8442
VK		 659 if (agg_wsize >= 0)
660 wil_addba_tx_request(wil, vri, agg_wsize);
3442a504
VK		 661}
662
249a382b
VK		 663static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
664 int len)
665{
b874ddec 666 struct wmi_ba_status_event *evt = d;
3277213f 667 struct vring_tx_data *txdata;
249a382b 668
cbcf5866 669 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
7b05b0ab
VK		 670 evt->ringid,
671 evt->status == WMI_BA_AGREED ? "OK" : "N/A",
cbcf5866
VK		 672 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
673 evt->amsdu ? "+" : "-");
7b05b0ab
VK		 674
675 if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
676 wil_err(wil, "invalid ring id %d\n", evt->ringid);
677 return;
b4490f42
VK		 678 }
679
3277213f
VK		 680 if (evt->status != WMI_BA_AGREED) {
681 evt->ba_timeout = 0;
682 evt->agg_wsize = 0;
cbcf5866 683 evt->amsdu = 0;
7b05b0ab
VK		 684 }
685
3277213f 686 txdata = &wil->vring_tx_data[evt->ringid];
ec81b5ad 687
3277213f
VK		 688 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
689 txdata->agg_wsize = evt->agg_wsize;
cbcf5866 690 txdata->agg_amsdu = evt->amsdu;
3a124ed6 691 txdata->addba_in_progress = false;
3277213f 692}
ec81b5ad 693
3277213f
VK		 694static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
695 int len)
696{
697 struct wmi_rcp_addba_req_event *evt = d;
ec81b5ad 698
3277213f
VK		 699 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
700 evt->ba_param_set, evt->ba_timeout,
701 evt->ba_seq_ctrl);
702}
ec81b5ad 703
3277213f 704static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
bd33273b 705__acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
3277213f
VK		 706{
707 struct wmi_delba_event *evt = d;
708 u8 cid, tid;
709 u16 reason = __le16_to_cpu(evt->reason);
710 struct wil_sta_info *sta;
711 struct wil_tid_ampdu_rx *r;
3277213f 712
bd33273b 713 might_sleep();
3277213f
VK		 714 parse_cidxtid(evt->cidxtid, &cid, &tid);
715 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
716 cid, tid,
717 evt->from_initiator ? "originator" : "recipient",
718 reason);
719 if (!evt->from_initiator) {
720 int i;
721 /* find Tx vring it belongs to */
722 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
723 if ((wil->vring2cid_tid[i][0] == cid) &&
724 (wil->vring2cid_tid[i][1] == tid)) {
725 struct vring_tx_data *txdata =
726 &wil->vring_tx_data[i];
727
728 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
729 txdata->agg_timeout = 0;
730 txdata->agg_wsize = 0;
3a124ed6 731 txdata->addba_in_progress = false;
3277213f
VK		 732
733 break; /* max. 1 matching ring */
734 }
735 }
736 if (i >= ARRAY_SIZE(wil->vring2cid_tid))
737 wil_err(wil, "DELBA: unable to find Tx vring\n");
738 return;
7b05b0ab 739 }
8c86f757 740
3277213f
VK		 741 sta = &wil->sta[cid];
742
bd33273b 743 spin_lock_bh(&sta->tid_rx_lock);
3277213f
VK		 744
745 r = sta->tid_rx[tid];
746 sta->tid_rx[tid] = NULL;
747 wil_tid_ampdu_rx_free(wil, r);
748
bd33273b 749 spin_unlock_bh(&sta->tid_rx_lock);
249a382b
VK		 750}
751
b03fbab0
VK		 752/**
753 * Some events are ignored for purpose; and need not be interpreted as
754 * "unhandled events"
755 */
756static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len)
757{
758 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len);
759}
760
2be7d22f
VK		 761static const struct {
762 int eventid;
763 void (*handler)(struct wil6210_priv *wil, int eventid,
764 void *data, int data_len);
765} wmi_evt_handlers[] = {
766 {WMI_READY_EVENTID, wmi_evt_ready},
817f1853 767 {WMI_FW_READY_EVENTID, wmi_evt_ignore},
2be7d22f 768 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
90d89e9a 769 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt},
2be7d22f
VK		 770 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
771 {WMI_CONNECT_EVENTID, wmi_evt_connect},
772 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
2be7d22f 773 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
249a382b 774 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
3277213f
VK		 775 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req},
776 {WMI_DELBA_EVENTID, wmi_evt_delba},
230d8442 777 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en},
b03fbab0 778 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore},
2be7d22f
VK		 779};
780
781/*
782 * Run in IRQ context
783 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
784 * that will be eventually handled by the @wmi_event_worker in the thread
785 * context of thread "wil6210_wmi"
786 */
787void wmi_recv_cmd(struct wil6210_priv *wil)
788{
789 struct wil6210_mbox_ring_desc d_tail;
790 struct wil6210_mbox_hdr hdr;
791 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
792 struct pending_wmi_event *evt;
793 u8 *cmd;
794 void __iomem *src;
795 ulong flags;
a715c7dd 796 unsigned n;
0916d9f2 797 unsigned int num_immed_reply = 0;
2be7d22f 798
817f1853 799 if (!test_bit(wil_status_mbox_ready, wil->status)) {
4cf99c93 800 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
55f7acdd
VK		 801 return;
802 }
803
a715c7dd 804 for (n = 0;; n++) {
2be7d22f 805 u16 len;
95266dc0 806 bool q;
0916d9f2 807 bool immed_reply = false;
2be7d22f 808
b9eeb512
VK		 809 r->head = wil_r(wil, RGF_MBOX +
810 offsetof(struct wil6210_mbox_ctl, rx.head));
95266dc0
VK		 811 if (r->tail == r->head)
812 break;
2be7d22f 813
a715c7dd
VK		 814 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
815 r->head, r->tail);
816 /* read cmd descriptor from tail */
2be7d22f
VK		 817 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
818 sizeof(struct wil6210_mbox_ring_desc));
819 if (d_tail.sync == 0) {
820 wil_err(wil, "Mbox evt not owned by FW?\n");
95266dc0 821 break;
2be7d22f
VK		 822 }
823
a715c7dd 824 /* read cmd header from descriptor */
2be7d22f
VK		 825 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
826 wil_err(wil, "Mbox evt at 0x%08x?\n",
827 le32_to_cpu(d_tail.addr));
95266dc0 828 break;
2be7d22f 829 }
2be7d22f 830 len = le16_to_cpu(hdr.len);
a715c7dd
VK		 831 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
832 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
833 hdr.flags);
834
835 /* read cmd buffer from descriptor */
2be7d22f
VK		 836 src = wmi_buffer(wil, d_tail.addr) +
837 sizeof(struct wil6210_mbox_hdr);
838 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
839 event.wmi) + len, 4),
840 GFP_KERNEL);
14f8dc49 841 if (!evt)
95266dc0 842 break;
14f8dc49 843
2be7d22f
VK		 844 evt->event.hdr = hdr;
845 cmd = (void *)&evt->event.wmi;
846 wil_memcpy_fromio_32(cmd, src, len);
847 /* mark entry as empty */
b9eeb512
VK		 848 wil_w(wil, r->tail +
849 offsetof(struct wil6210_mbox_ring_desc, sync), 0);
2be7d22f 850 /* indicate */
2be7d22f 851 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
b874ddec
LD		 852 (len >= sizeof(struct wmi_cmd_hdr))) {
853 struct wmi_cmd_hdr *wmi = &evt->event.wmi;
854 u16 id = le16_to_cpu(wmi->command_id);
855 u32 tstamp = le32_to_cpu(wmi->fw_timestamp);
fe5c271e 856 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
0916d9f2
ME		 857 if (wil->reply_id && wil->reply_id == id) {
858 if (wil->reply_buf) {
859 memcpy(wil->reply_buf, wmi,
860 min(len, wil->reply_size));
861 immed_reply = true;
862 }
863 }
fe5c271e 864 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
8fe59627 865
f988b23f
VK		 866 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
867 id, wmi->mid, tstamp);
868 trace_wil6210_wmi_event(wmi, &wmi[1],
869 len - sizeof(*wmi));
2be7d22f 870 }
7743882d 871 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 872 &evt->event.hdr, sizeof(hdr) + len, true);
873
874 /* advance tail */
875 r->tail = r->base + ((r->tail - r->base +
876 sizeof(struct wil6210_mbox_ring_desc)) % r->size);
b9eeb512
VK		 877 wil_w(wil, RGF_MBOX +
878 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail);
2be7d22f 879
0916d9f2
ME		 880 if (immed_reply) {
881 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n",
882 __func__, wil->reply_id);
883 kfree(evt);
884 num_immed_reply++;
885 complete(&wil->wmi_call);
886 } else {
887 /* add to the pending list */
888 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
889 list_add_tail(&evt->list, &wil->pending_wmi_ev);
890 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
891 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
892 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
893 }
2be7d22f 894 }
95266dc0 895 /* normally, 1 event per IRQ should be processed */
0916d9f2
ME		 896 wil_dbg_wmi(wil, "%s -> %d events queued, %d completed\n", __func__,
897 n - num_immed_reply, num_immed_reply);
2be7d22f
VK		 898}
899
900int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
901 u16 reply_id, void *reply, u8 reply_size, int to_msec)
902{
903 int rc;
f4bbb829 904 unsigned long remain;
2be7d22f
VK		 905
906 mutex_lock(&wil->wmi_mutex);
907
fe5c271e
ME		 908 spin_lock(&wil->wmi_ev_lock);
909 wil->reply_id = reply_id;
910 wil->reply_buf = reply;
911 wil->reply_size = reply_size;
912 spin_unlock(&wil->wmi_ev_lock);
913
2be7d22f
VK		 914 rc = __wmi_send(wil, cmdid, buf, len);
915 if (rc)
916 goto out;
917
59502647
DL		 918 remain = wait_for_completion_timeout(&wil->wmi_call,
919 msecs_to_jiffies(to_msec));
2be7d22f
VK		 920 if (0 == remain) {
921 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
922 cmdid, reply_id, to_msec);
923 rc = -ETIME;
924 } else {
7743882d 925 wil_dbg_wmi(wil,
2be7d22f
VK		 926 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
927 cmdid, reply_id,
928 to_msec - jiffies_to_msecs(remain));
929 }
fe5c271e
ME		 930
931out:
932 spin_lock(&wil->wmi_ev_lock);
2be7d22f
VK		 933 wil->reply_id = 0;
934 wil->reply_buf = NULL;
935 wil->reply_size = 0;
fe5c271e
ME		 936 spin_unlock(&wil->wmi_ev_lock);
937
2be7d22f
VK		 938 mutex_unlock(&wil->wmi_mutex);
939
940 return rc;
941}
942
943int wmi_echo(struct wil6210_priv *wil)
944{
945 struct wmi_echo_cmd cmd = {
946 .value = cpu_to_le32(0x12345678),
947 };
948
949 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
a54a40da 950 WMI_ECHO_RSP_EVENTID, NULL, 0, 50);
2be7d22f
VK		 951}
952
953int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
954{
955 struct wmi_set_mac_address_cmd cmd;
956
a82553bb 957 ether_addr_copy(cmd.mac, addr);
2be7d22f 958
7743882d 959 wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
2be7d22f
VK		 960
961 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
962}
963
8e52fe30
HK		 964int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype,
965 u8 chan, u8 hidden_ssid)
2be7d22f 966{
b8023177
VK		 967 int rc;
968
969 struct wmi_pcp_start_cmd cmd = {
2be7d22f
VK		 970 .bcon_interval = cpu_to_le16(bi),
971 .network_type = wmi_nettype,
972 .disable_sec_offload = 1,
adc2d122 973 .channel = chan - 1,
1eb9d1e5 974 .pcp_max_assoc_sta = max_assoc_sta,
8e52fe30 975 .hidden_ssid = hidden_ssid,
2be7d22f 976 };
b8023177 977 struct {
b874ddec 978 struct wmi_cmd_hdr wmi;
b8023177
VK		 979 struct wmi_pcp_started_event evt;
980 } __packed reply;
2be7d22f 981
774974e5 982 if (!wil->privacy)
2be7d22f
VK		 983 cmd.disable_sec = 1;
984
1eb9d1e5
DL		 985 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
986 (cmd.pcp_max_assoc_sta <= 0)) {
987 wil_info(wil,
988 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
989 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
990 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
991 }
992
8b5c7f6c
VK		 993 /*
994 * Processing time may be huge, in case of secure AP it takes about
995 * 3500ms for FW to start AP
996 */
b8023177 997 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
8b5c7f6c 998 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
b8023177
VK		 999 if (rc)
1000 return rc;
1001
1002 if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
1003 rc = -EINVAL;
1004
1005 return rc;
1006}
1007
1008int wmi_pcp_stop(struct wil6210_priv *wil)
1009{
1010 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
1011 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
2be7d22f
VK		 1012}
1013
1014int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
1015{
1016 struct wmi_set_ssid_cmd cmd = {
1017 .ssid_len = cpu_to_le32(ssid_len),
1018 };
1019
1020 if (ssid_len > sizeof(cmd.ssid))
1021 return -EINVAL;
1022
1023 memcpy(cmd.ssid, ssid, ssid_len);
1024
1025 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
1026}
1027
1028int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
1029{
1030 int rc;
1031 struct {
b874ddec 1032 struct wmi_cmd_hdr wmi;
2be7d22f
VK		 1033 struct wmi_set_ssid_cmd cmd;
1034 } __packed reply;
1035 int len; /* reply.cmd.ssid_len in CPU order */
1036
1037 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
1038 &reply, sizeof(reply), 20);
1039 if (rc)
1040 return rc;
1041
1042 len = le32_to_cpu(reply.cmd.ssid_len);
1043 if (len > sizeof(reply.cmd.ssid))
1044 return -EINVAL;
1045
1046 *ssid_len = len;
1047 memcpy(ssid, reply.cmd.ssid, len);
1048
1049 return 0;
1050}
1051
1052int wmi_set_channel(struct wil6210_priv *wil, int channel)
1053{
1054 struct wmi_set_pcp_channel_cmd cmd = {
1055 .channel = channel - 1,
1056 };
1057
1058 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
1059}
1060
1061int wmi_get_channel(struct wil6210_priv *wil, int *channel)
1062{
1063 int rc;
1064 struct {
b874ddec 1065 struct wmi_cmd_hdr wmi;
2be7d22f
VK		 1066 struct wmi_set_pcp_channel_cmd cmd;
1067 } __packed reply;
1068
1069 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
1070 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
1071 if (rc)
1072 return rc;
1073
1074 if (reply.cmd.channel > 3)
1075 return -EINVAL;
1076
1077 *channel = reply.cmd.channel + 1;
1078
1079 return 0;
1080}
1081
e6d68341 1082int wmi_p2p_cfg(struct wil6210_priv *wil, int channel, int bi)
b8023177 1083{
e6d68341 1084 int rc;
b8023177 1085 struct wmi_p2p_cfg_cmd cmd = {
e6d68341
DL		 1086 .discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER,
1087 .bcon_interval = cpu_to_le16(bi),
b8023177
VK		 1088 .channel = channel - 1,
1089 };
e6d68341
DL		 1090 struct {
1091 struct wmi_cmd_hdr wmi;
1092 struct wmi_p2p_cfg_done_event evt;
1093 } __packed reply;
1094
1095 wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n");
1096
1097 rc = wmi_call(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd),
1098 WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300);
1099 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1100 wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status);
1101 rc = -EINVAL;
1102 }
1103
1104 return rc;
1105}
1106
1107int wmi_start_listen(struct wil6210_priv *wil)
1108{
1109 int rc;
1110 struct {
1111 struct wmi_cmd_hdr wmi;
1112 struct wmi_listen_started_event evt;
1113 } __packed reply;
1114
1115 wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n");
1116
1117 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1118 WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300);
1119 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1120 wil_err(wil, "device failed to start listen. status %d\n",
1121 reply.evt.status);
1122 rc = -EINVAL;
1123 }
b8023177 1124
e6d68341
DL		 1125 return rc;
1126}
1127
1128int wmi_start_search(struct wil6210_priv *wil)
1129{
1130 int rc;
1131 struct {
1132 struct wmi_cmd_hdr wmi;
1133 struct wmi_search_started_event evt;
1134 } __packed reply;
1135
1136 wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n");
1137
1138 rc = wmi_call(wil, WMI_START_SEARCH_CMDID, NULL, 0,
1139 WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300);
1140 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1141 wil_err(wil, "device failed to start search. status %d\n",
1142 reply.evt.status);
1143 rc = -EINVAL;
1144 }
1145
1146 return rc;
1147}
1148
1149int wmi_stop_discovery(struct wil6210_priv *wil)
1150{
1151 int rc;
1152
1153 wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n");
1154
1155 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1156 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100);
1157
1158 if (rc)
1159 wil_err(wil, "Failed to stop discovery\n");
1160
1161 return rc;
b8023177
VK		 1162}
1163
2be7d22f 1164int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
230d8442 1165 const void *mac_addr, int key_usage)
2be7d22f
VK		 1166{
1167 struct wmi_delete_cipher_key_cmd cmd = {
1168 .key_index = key_index,
1169 };
1170
1171 if (mac_addr)
1172 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1173
1174 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1175}
1176
1177int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
230d8442
VK		 1178 const void *mac_addr, int key_len, const void *key,
1179 int key_usage)
2be7d22f
VK		 1180{
1181 struct wmi_add_cipher_key_cmd cmd = {
1182 .key_index = key_index,
230d8442 1183 .key_usage = key_usage,
2be7d22f
VK		 1184 .key_len = key_len,
1185 };
1186
1187 if (!key || (key_len > sizeof(cmd.key)))
1188 return -EINVAL;
1189
1190 memcpy(cmd.key, key, key_len);
1191 if (mac_addr)
1192 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1193
1194 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1195}
1196
1197int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
1198{
5421bf0c
VK		 1199 static const char *const names[] = {
1200 [WMI_FRAME_BEACON] = "BEACON",
1201 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ",
1202 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP",
1203 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ",
1204 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP",
1205 };
2be7d22f
VK		 1206 int rc;
1207 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
1208 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
8fe59627 1209
5421bf0c
VK		 1210 if (!cmd) {
1211 rc = -ENOMEM;
1212 goto out;
1213 }
ac4acdb7
VK		 1214 if (!ie)
1215 ie_len = 0;
2be7d22f
VK		 1216
1217 cmd->mgmt_frm_type = type;
1218 /* BUG: FW API define ieLen as u8. Will fix FW */
1219 cmd->ie_len = cpu_to_le16(ie_len);
1220 memcpy(cmd->ie_info, ie, ie_len);
03866e7d 1221 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
2be7d22f 1222 kfree(cmd);
5421bf0c
VK		 1223out:
1224 if (rc) {
1225 const char *name = type < ARRAY_SIZE(names) ?
1226 names[type] : "??";
1227 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc);
1228 }
2be7d22f
VK		 1229
1230 return rc;
1231}
1232
1647f12f
VK		 1233/**
1234 * wmi_rxon - turn radio on/off
1235 * @on: turn on if true, off otherwise
1236 *
1237 * Only switch radio. Channel should be set separately.
1238 * No timeout for rxon - radio turned on forever unless some other call
1239 * turns it off
1240 */
1241int wmi_rxon(struct wil6210_priv *wil, bool on)
1242{
1243 int rc;
1244 struct {
b874ddec 1245 struct wmi_cmd_hdr wmi;
1647f12f
VK		 1246 struct wmi_listen_started_event evt;
1247 } __packed reply;
1248
1249 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
1250
1251 if (on) {
1252 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1253 WMI_LISTEN_STARTED_EVENTID,
1254 &reply, sizeof(reply), 100);
1255 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1256 rc = -EINVAL;
1257 } else {
1258 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1259 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1260 }
1261
1262 return rc;
1263}
1264
47e19af9
VK		 1265int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1266{
1267 struct wireless_dev *wdev = wil->wdev;
1268 struct net_device *ndev = wil_to_ndev(wil);
1269 struct wmi_cfg_rx_chain_cmd cmd = {
1270 .action = WMI_RX_CHAIN_ADD,
1271 .rx_sw_ring = {
c44690a1 1272 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)),
47e19af9
VK		 1273 .ring_mem_base = cpu_to_le64(vring->pa),
1274 .ring_size = cpu_to_le16(vring->size),
1275 },
1276 .mid = 0, /* TODO - what is it? */
1277 .decap_trans_type = WMI_DECAP_TYPE_802_3,
b4490f42 1278 .reorder_type = WMI_RX_SW_REORDER,
ab954628 1279 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh),
47e19af9
VK		 1280 };
1281 struct {
b874ddec 1282 struct wmi_cmd_hdr wmi;
47e19af9
VK		 1283 struct wmi_cfg_rx_chain_done_event evt;
1284 } __packed evt;
1285 int rc;
1286
1287 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1288 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1289
1290 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1291 if (ch)
1292 cmd.sniffer_cfg.channel = ch->hw_value - 1;
1293 cmd.sniffer_cfg.phy_info_mode =
1294 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1295 cmd.sniffer_cfg.phy_support =
1296 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
4765332d 1297 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS);
504937d4
KE		 1298 } else {
1299 /* Initialize offload (in non-sniffer mode).
1300 * Linux IP stack always calculates IP checksum
1301 * HW always calculate TCP/UDP checksum
1302 */
1303 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
47e19af9 1304 }
c406ea7c
VK		 1305
1306 if (rx_align_2)
1307 cmd.l2_802_3_offload_ctrl |=
1308 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK;
1309
47e19af9
VK		 1310 /* typical time for secure PCP is 840ms */
1311 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1312 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1313 if (rc)
1314 return rc;
1315
1316 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1317
7743882d 1318 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
47e19af9
VK		 1319 le32_to_cpu(evt.evt.status), vring->hwtail);
1320
1321 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1322 rc = -EINVAL;
1323
1324 return rc;
1325}
1326
8c679675 1327int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
1a2780e0
VK		 1328{
1329 int rc;
1330 struct wmi_temp_sense_cmd cmd = {
8c679675
VK		 1331 .measure_baseband_en = cpu_to_le32(!!t_bb),
1332 .measure_rf_en = cpu_to_le32(!!t_rf),
1333 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW),
1a2780e0
VK		 1334 };
1335 struct {
b874ddec 1336 struct wmi_cmd_hdr wmi;
1a2780e0
VK		 1337 struct wmi_temp_sense_done_event evt;
1338 } __packed reply;
1339
1340 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1341 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1342 if (rc)
1343 return rc;
1344
8c679675
VK		 1345 if (t_bb)
1346 *t_bb = le32_to_cpu(reply.evt.baseband_t1000);
1347 if (t_rf)
1348 *t_rf = le32_to_cpu(reply.evt.rf_t1000);
1a2780e0
VK		 1349
1350 return 0;
1351}
1352
0916d9f2
ME		 1353int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason,
1354 bool full_disconnect)
4d55a0a1 1355{
3e9191fc
VK		 1356 int rc;
1357 u16 reason_code;
4d55a0a1
VK		 1358 struct wmi_disconnect_sta_cmd cmd = {
1359 .disconnect_reason = cpu_to_le16(reason),
1360 };
3e9191fc 1361 struct {
b874ddec 1362 struct wmi_cmd_hdr wmi;
3e9191fc
VK		 1363 struct wmi_disconnect_event evt;
1364 } __packed reply;
a82553bb
VK		 1365
1366 ether_addr_copy(cmd.dst_mac, mac);
4d55a0a1
VK		 1367
1368 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason);
1369
3e9191fc
VK		 1370 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd),
1371 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000);
1372 /* failure to disconnect in reasonable time treated as FW error */
1373 if (rc) {
1374 wil_fw_error_recovery(wil);
1375 return rc;
1376 }
1377
0916d9f2
ME		 1378 if (full_disconnect) {
1379 /* call event handler manually after processing wmi_call,
1380 * to avoid deadlock - disconnect event handler acquires
1381 * wil->mutex while it is already held here
1382 */
1383 reason_code = le16_to_cpu(reply.evt.protocol_reason_status);
3e9191fc 1384
0916d9f2
ME		 1385 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
1386 reply.evt.bssid, reason_code,
1387 reply.evt.disconnect_reason);
3e9191fc 1388
0916d9f2
ME		 1389 wil->sinfo_gen++;
1390 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true);
1391 }
3e9191fc 1392 return 0;
4d55a0a1
VK		 1393}
1394
3277213f
VK		 1395int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)
1396{
1397 struct wmi_vring_ba_en_cmd cmd = {
1398 .ringid = ringid,
1399 .agg_max_wsize = size,
1400 .ba_timeout = cpu_to_le16(timeout),
cbcf5866 1401 .amsdu = 0,
3277213f
VK		 1402 };
1403
1404 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__,
1405 ringid, size, timeout);
1406
1407 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd));
1408}
1409
26a359d9 1410int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason)
3277213f
VK		 1411{
1412 struct wmi_vring_ba_dis_cmd cmd = {
1413 .ringid = ringid,
1414 .reason = cpu_to_le16(reason),
1415 };
1416
1417 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__,
1418 ringid, reason);
1419
1420 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd));
1421}
1422
26a359d9
VK		 1423int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason)
1424{
1425 struct wmi_rcp_delba_cmd cmd = {
1426 .cidxtid = cidxtid,
1427 .reason = cpu_to_le16(reason),
1428 };
1429
1430 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__,
1431 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason);
1432
1433 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd));
1434}
1435
3277213f
VK		 1436int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
1437 u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
1438{
1439 int rc;
1440 struct wmi_rcp_addba_resp_cmd cmd = {
1441 .cidxtid = mk_cidxtid(cid, tid),
1442 .dialog_token = token,
1443 .status_code = cpu_to_le16(status),
1444 /* bit 0: A-MSDU supported
1445 * bit 1: policy (should be 0 for us)
1446 * bits 2..5: TID
1447 * bits 6..15: buffer size
1448 */
1449 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
1450 (agg_wsize << 6)),
1451 .ba_timeout = cpu_to_le16(timeout),
1452 };
1453 struct {
b874ddec 1454 struct wmi_cmd_hdr wmi;
3277213f
VK		 1455 struct wmi_rcp_addba_resp_sent_event evt;
1456 } __packed reply;
1457
1458 wil_dbg_wmi(wil,
1459 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
1460 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-");
1461
1462 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd),
230d8442
VK		 1463 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply),
1464 100);
3277213f
VK		 1465 if (rc)
1466 return rc;
1467
1468 if (reply.evt.status) {
1469 wil_err(wil, "ADDBA response failed with status %d\n",
1470 le16_to_cpu(reply.evt.status));
1471 rc = -EINVAL;
1472 }
1473
1474 return rc;
1475}
1476
2be7d22f
VK		 1477void wmi_event_flush(struct wil6210_priv *wil)
1478{
1479 struct pending_wmi_event *evt, *t;
1480
7743882d 1481 wil_dbg_wmi(wil, "%s()\n", __func__);
2be7d22f
VK		 1482
1483 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1484 list_del(&evt->list);
1485 kfree(evt);
1486 }
1487}
1488
1489static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1490 void *d, int len)
1491{
1492 uint i;
1493
1494 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1495 if (wmi_evt_handlers[i].eventid == id) {
1496 wmi_evt_handlers[i].handler(wil, id, d, len);
1497 return true;
1498 }
1499 }
1500
1501 return false;
1502}
1503
1504static void wmi_event_handle(struct wil6210_priv *wil,
1505 struct wil6210_mbox_hdr *hdr)
1506{
1507 u16 len = le16_to_cpu(hdr->len);
1508
1509 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
b874ddec
LD		 1510 (len >= sizeof(struct wmi_cmd_hdr))) {
1511 struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]);
2be7d22f 1512 void *evt_data = (void *)(&wmi[1]);
b874ddec 1513 u16 id = le16_to_cpu(wmi->command_id);
028e1836
VK		 1514
1515 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1516 id, wil->reply_id);
2be7d22f
VK		 1517 /* check if someone waits for this event */
1518 if (wil->reply_id && wil->reply_id == id) {
0916d9f2
ME		 1519 WARN_ON(wil->reply_buf);
1520 wmi_evt_call_handler(wil, id, evt_data,
1521 len - sizeof(*wmi));
1522 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n",
1523 __func__, id);
59502647 1524 complete(&wil->wmi_call);
2be7d22f
VK		 1525 return;
1526 }
1527 /* unsolicited event */
1528 /* search for handler */
1529 if (!wmi_evt_call_handler(wil, id, evt_data,
1530 len - sizeof(*wmi))) {
a3ce5ccd 1531 wil_info(wil, "Unhandled event 0x%04x\n", id);
2be7d22f
VK		 1532 }
1533 } else {
1534 wil_err(wil, "Unknown event type\n");
1535 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1536 hdr, sizeof(*hdr) + len, true);
1537 }
1538}
1539
1540/*
1541 * Retrieve next WMI event from the pending list
1542 */
1543static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1544{
1545 ulong flags;
1546 struct list_head *ret = NULL;
1547
1548 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1549
1550 if (!list_empty(&wil->pending_wmi_ev)) {
1551 ret = wil->pending_wmi_ev.next;
1552 list_del(ret);
1553 }
1554
1555 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1556
1557 return ret;
1558}
1559
1560/*
1561 * Handler for the WMI events
1562 */
1563void wmi_event_worker(struct work_struct *work)
1564{
1565 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1566 wmi_event_worker);
1567 struct pending_wmi_event *evt;
1568 struct list_head *lh;
1569
028e1836 1570 wil_dbg_wmi(wil, "Start %s\n", __func__);
2be7d22f
VK		 1571 while ((lh = next_wmi_ev(wil)) != NULL) {
1572 evt = list_entry(lh, struct pending_wmi_event, list);
1573 wmi_event_handle(wil, &evt->event.hdr);
1574 kfree(evt);
1575 }
028e1836 1576 wil_dbg_wmi(wil, "Finished %s\n", __func__);
2be7d22f 1577}
Linux kernel - Deliverables
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