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wil6210: switch to generated wmi.h
[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
VK		 370
371 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
372 d_len, signal, GFP_KERNEL);
2be7d22f 373 if (bss) {
7743882d 374 wil_dbg_wmi(wil, "Added BSS %pM\n",
2be7d22f 375 rx_mgmt_frame->bssid);
5b112d3d 376 cfg80211_put_bss(wiphy, bss);
2be7d22f 377 } else {
5bc8c1f2 378 wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
2be7d22f 379 }
102b1d99
VK		 380 } else {
381 cfg80211_rx_mgmt(wil->wdev, freq, signal,
970fdfa8 382 (void *)rx_mgmt_frame, d_len, 0);
2be7d22f
VK		 383 }
384}
385
90d89e9a
VK		 386static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
387{
388 struct wmi_tx_mgmt_packet_event *data = d;
389 struct ieee80211_mgmt *mgmt_frame =
390 (struct ieee80211_mgmt *)data->payload;
391 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload);
392
393 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame,
394 flen, true);
395}
396
2be7d22f
VK		 397static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
398 void *d, int len)
399{
400 if (wil->scan_request) {
401 struct wmi_scan_complete_event *data = d;
6c2faf09 402 bool aborted = (data->status != WMI_SCAN_SUCCESS);
2be7d22f 403
7743882d 404 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
2a91d7d0
VK		 405 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
406 wil->scan_request, aborted);
407
047e5d74 408 del_timer_sync(&wil->scan_timer);
2be7d22f
VK		 409 cfg80211_scan_done(wil->scan_request, aborted);
410 wil->scan_request = NULL;
411 } else {
412 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
413 }
414}
415
416static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
417{
418 struct net_device *ndev = wil_to_ndev(wil);
419 struct wireless_dev *wdev = wil->wdev;
420 struct wmi_connect_event *evt = d;
421 int ch; /* channel number */
422 struct station_info sinfo;
423 u8 *assoc_req_ie, *assoc_resp_ie;
424 size_t assoc_req_ielen, assoc_resp_ielen;
425 /* capinfo(u16) + listen_interval(u16) + IEs */
426 const size_t assoc_req_ie_offset = sizeof(u16) * 2;
427 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
428 const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
0916d9f2 429 int rc;
2be7d22f
VK		 430
431 if (len < sizeof(*evt)) {
432 wil_err(wil, "Connect event too short : %d bytes\n", len);
433 return;
434 }
435 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
436 evt->assoc_resp_len) {
437 wil_err(wil,
438 "Connect event corrupted : %d != %d + %d + %d + %d\n",
439 len, (int)sizeof(*evt), evt->beacon_ie_len,
440 evt->assoc_req_len, evt->assoc_resp_len);
441 return;
442 }
3df2cd36
VK		 443 if (evt->cid >= WIL6210_MAX_CID) {
444 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
445 return;
446 }
447
2be7d22f 448 ch = evt->channel + 1;
0916d9f2
ME		 449 wil_info(wil, "Connect %pM channel [%d] cid %d\n",
450 evt->bssid, ch, evt->cid);
7743882d 451 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 452 evt->assoc_info, len - sizeof(*evt), true);
453
454 /* figure out IE's */
455 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
456 assoc_req_ie_offset];
457 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
458 if (evt->assoc_req_len <= assoc_req_ie_offset) {
459 assoc_req_ie = NULL;
460 assoc_req_ielen = 0;
461 }
462
463 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
464 evt->assoc_req_len +
465 assoc_resp_ie_offset];
466 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
467 if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
468 assoc_resp_ie = NULL;
469 assoc_resp_ielen = 0;
470 }
471
0916d9f2
ME		 472 mutex_lock(&wil->mutex);
473 if (test_bit(wil_status_resetting, wil->status) ||
474 !test_bit(wil_status_fwready, wil->status)) {
475 wil_err(wil, "status_resetting, cancel connect event, CID %d\n",
476 evt->cid);
477 mutex_unlock(&wil->mutex);
478 /* no need for cleanup, wil_reset will do that */
479 return;
480 }
481
2be7d22f
VK		 482 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
483 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
9419b6a2 484 if (!test_bit(wil_status_fwconnecting, wil->status)) {
2be7d22f 485 wil_err(wil, "Not in connecting state\n");
0916d9f2 486 mutex_unlock(&wil->mutex);
2be7d22f
VK		 487 return;
488 }
489 del_timer_sync(&wil->connect_timer);
3d287fb3
ME		 490 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
491 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
492 if (wil->sta[evt->cid].status != wil_sta_unused) {
493 wil_err(wil, "%s: AP: Invalid status %d for CID %d\n",
494 __func__, wil->sta[evt->cid].status, evt->cid);
495 mutex_unlock(&wil->mutex);
496 return;
497 }
0916d9f2
ME		 498 }
499
500 /* FIXME FW can transmit only ucast frames to peer */
501 /* FIXME real ring_id instead of hard coded 0 */
502 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid);
503 wil->sta[evt->cid].status = wil_sta_conn_pending;
2be7d22f 504
0916d9f2
ME		 505 rc = wil_tx_init(wil, evt->cid);
506 if (rc) {
507 wil_err(wil, "%s: config tx vring failed for CID %d, rc (%d)\n",
508 __func__, evt->cid, rc);
509 wmi_disconnect_sta(wil, wil->sta[evt->cid].addr,
510 WLAN_REASON_UNSPECIFIED, false);
511 } else {
512 wil_info(wil, "%s: successful connection to CID %d\n",
513 __func__, evt->cid);
514 }
515
516 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
517 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
518 if (rc) {
519 netif_tx_stop_all_queues(ndev);
520 netif_carrier_off(ndev);
521 wil_err(wil,
522 "%s: cfg80211_connect_result with failure\n",
523 __func__);
524 cfg80211_connect_result(ndev, evt->bssid, NULL, 0,
525 NULL, 0,
526 WLAN_STATUS_UNSPECIFIED_FAILURE,
527 GFP_KERNEL);
528 goto out;
529 } else {
530 cfg80211_connect_result(ndev, evt->bssid,
531 assoc_req_ie, assoc_req_ielen,
532 assoc_resp_ie, assoc_resp_ielen,
533 WLAN_STATUS_SUCCESS,
534 GFP_KERNEL);
535 }
2be7d22f
VK		 536 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
537 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
0916d9f2
ME		 538 if (rc)
539 goto out;
540
2be7d22f
VK		 541 memset(&sinfo, 0, sizeof(sinfo));
542
543 sinfo.generation = wil->sinfo_gen++;
544
545 if (assoc_req_ie) {
546 sinfo.assoc_req_ies = assoc_req_ie;
547 sinfo.assoc_req_ies_len = assoc_req_ielen;
2be7d22f
VK		 548 }
549
550 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
0916d9f2
ME		 551 } else {
552 wil_err(wil, "%s: unhandled iftype %d for CID %d\n",
553 __func__, wdev->iftype, evt->cid);
554 goto out;
2be7d22f 555 }
2be7d22f 556
0916d9f2
ME		 557 wil->sta[evt->cid].status = wil_sta_connected;
558 set_bit(wil_status_fwconnected, wil->status);
559 netif_tx_wake_all_queues(ndev);
2be7d22f 560
0916d9f2
ME		 561out:
562 if (rc)
563 wil->sta[evt->cid].status = wil_sta_unused;
564 clear_bit(wil_status_fwconnecting, wil->status);
565 mutex_unlock(&wil->mutex);
2be7d22f
VK		 566}
567
568static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
569 void *d, int len)
570{
571 struct wmi_disconnect_event *evt = d;
4821e6d8 572 u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
2be7d22f 573
0916d9f2
ME		 574 wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
575 evt->bssid, reason_code, evt->disconnect_reason);
2be7d22f
VK		 576
577 wil->sinfo_gen++;
578
097638a0 579 mutex_lock(&wil->mutex);
4821e6d8 580 wil6210_disconnect(wil, evt->bssid, reason_code, true);
097638a0 581 mutex_unlock(&wil->mutex);
2be7d22f
VK		 582}
583
2be7d22f
VK		 584/*
585 * Firmware reports EAPOL frame using WME event.
586 * Reconstruct Ethernet frame and deliver it via normal Rx
587 */
588static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
589 void *d, int len)
590{
591 struct net_device *ndev = wil_to_ndev(wil);
592 struct wmi_eapol_rx_event *evt = d;
593 u16 eapol_len = le16_to_cpu(evt->eapol_len);
594 int sz = eapol_len + ETH_HLEN;
595 struct sk_buff *skb;
596 struct ethhdr *eth;
c8b78b5f
VK		 597 int cid;
598 struct wil_net_stats *stats = NULL;
2be7d22f 599
7743882d 600 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
2be7d22f
VK		 601 evt->src_mac);
602
c8b78b5f
VK		 603 cid = wil_find_cid(wil, evt->src_mac);
604 if (cid >= 0)
605 stats = &wil->sta[cid].stats;
606
2be7d22f
VK		 607 if (eapol_len > 196) { /* TODO: revisit size limit */
608 wil_err(wil, "EAPOL too large\n");
609 return;
610 }
611
612 skb = alloc_skb(sz, GFP_KERNEL);
613 if (!skb) {
614 wil_err(wil, "Failed to allocate skb\n");
615 return;
616 }
c8b78b5f 617
2be7d22f 618 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
a82553bb
VK		 619 ether_addr_copy(eth->h_dest, ndev->dev_addr);
620 ether_addr_copy(eth->h_source, evt->src_mac);
2be7d22f
VK		 621 eth->h_proto = cpu_to_be16(ETH_P_PAE);
622 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
623 skb->protocol = eth_type_trans(skb, ndev);
624 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
625 ndev->stats.rx_packets++;
c8b78b5f
VK		 626 ndev->stats.rx_bytes += sz;
627 if (stats) {
628 stats->rx_packets++;
629 stats->rx_bytes += sz;
630 }
2be7d22f
VK		 631 } else {
632 ndev->stats.rx_dropped++;
c8b78b5f
VK		 633 if (stats)
634 stats->rx_dropped++;
2be7d22f
VK		 635 }
636}
637
230d8442 638static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len)
3a124ed6 639{
230d8442
VK		 640 struct wmi_vring_en_event *evt = d;
641 u8 vri = evt->vring_index;
3a124ed6 642
230d8442 643 wil_dbg_wmi(wil, "Enable vring %d\n", vri);
3a124ed6 644
230d8442
VK		 645 if (vri >= ARRAY_SIZE(wil->vring_tx)) {
646 wil_err(wil, "Enable for invalid vring %d\n", vri);
e58c9f70
VK		 647 return;
648 }
230d8442
VK		 649 wil->vring_tx_data[vri].dot1x_open = true;
650 if (vri == wil->bcast_vring) /* no BA for bcast */
e58c9f70 651 return;
230d8442
VK		 652 if (agg_wsize >= 0)
653 wil_addba_tx_request(wil, vri, agg_wsize);
3442a504
VK		 654}
655
249a382b
VK		 656static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
657 int len)
658{
b874ddec 659 struct wmi_ba_status_event *evt = d;
3277213f 660 struct vring_tx_data *txdata;
249a382b 661
cbcf5866 662 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
7b05b0ab
VK		 663 evt->ringid,
664 evt->status == WMI_BA_AGREED ? "OK" : "N/A",
cbcf5866
VK		 665 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
666 evt->amsdu ? "+" : "-");
7b05b0ab
VK		 667
668 if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
669 wil_err(wil, "invalid ring id %d\n", evt->ringid);
670 return;
b4490f42
VK		 671 }
672
3277213f
VK		 673 if (evt->status != WMI_BA_AGREED) {
674 evt->ba_timeout = 0;
675 evt->agg_wsize = 0;
cbcf5866 676 evt->amsdu = 0;
7b05b0ab
VK		 677 }
678
3277213f 679 txdata = &wil->vring_tx_data[evt->ringid];
ec81b5ad 680
3277213f
VK		 681 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
682 txdata->agg_wsize = evt->agg_wsize;
cbcf5866 683 txdata->agg_amsdu = evt->amsdu;
3a124ed6 684 txdata->addba_in_progress = false;
3277213f 685}
ec81b5ad 686
3277213f
VK		 687static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
688 int len)
689{
690 struct wmi_rcp_addba_req_event *evt = d;
ec81b5ad 691
3277213f
VK		 692 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
693 evt->ba_param_set, evt->ba_timeout,
694 evt->ba_seq_ctrl);
695}
ec81b5ad 696
3277213f 697static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
bd33273b 698__acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
3277213f
VK		 699{
700 struct wmi_delba_event *evt = d;
701 u8 cid, tid;
702 u16 reason = __le16_to_cpu(evt->reason);
703 struct wil_sta_info *sta;
704 struct wil_tid_ampdu_rx *r;
3277213f 705
bd33273b 706 might_sleep();
3277213f
VK		 707 parse_cidxtid(evt->cidxtid, &cid, &tid);
708 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
709 cid, tid,
710 evt->from_initiator ? "originator" : "recipient",
711 reason);
712 if (!evt->from_initiator) {
713 int i;
714 /* find Tx vring it belongs to */
715 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
716 if ((wil->vring2cid_tid[i][0] == cid) &&
717 (wil->vring2cid_tid[i][1] == tid)) {
718 struct vring_tx_data *txdata =
719 &wil->vring_tx_data[i];
720
721 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
722 txdata->agg_timeout = 0;
723 txdata->agg_wsize = 0;
3a124ed6 724 txdata->addba_in_progress = false;
3277213f
VK		 725
726 break; /* max. 1 matching ring */
727 }
728 }
729 if (i >= ARRAY_SIZE(wil->vring2cid_tid))
730 wil_err(wil, "DELBA: unable to find Tx vring\n");
731 return;
7b05b0ab 732 }
8c86f757 733
3277213f
VK		 734 sta = &wil->sta[cid];
735
bd33273b 736 spin_lock_bh(&sta->tid_rx_lock);
3277213f
VK		 737
738 r = sta->tid_rx[tid];
739 sta->tid_rx[tid] = NULL;
740 wil_tid_ampdu_rx_free(wil, r);
741
bd33273b 742 spin_unlock_bh(&sta->tid_rx_lock);
249a382b
VK		 743}
744
b03fbab0
VK		 745/**
746 * Some events are ignored for purpose; and need not be interpreted as
747 * "unhandled events"
748 */
749static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len)
750{
751 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len);
752}
753
2be7d22f
VK		 754static const struct {
755 int eventid;
756 void (*handler)(struct wil6210_priv *wil, int eventid,
757 void *data, int data_len);
758} wmi_evt_handlers[] = {
759 {WMI_READY_EVENTID, wmi_evt_ready},
817f1853 760 {WMI_FW_READY_EVENTID, wmi_evt_ignore},
2be7d22f 761 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
90d89e9a 762 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt},
2be7d22f
VK		 763 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
764 {WMI_CONNECT_EVENTID, wmi_evt_connect},
765 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
2be7d22f 766 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
249a382b 767 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
3277213f
VK		 768 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req},
769 {WMI_DELBA_EVENTID, wmi_evt_delba},
230d8442 770 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en},
b03fbab0 771 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore},
2be7d22f
VK		 772};
773
774/*
775 * Run in IRQ context
776 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
777 * that will be eventually handled by the @wmi_event_worker in the thread
778 * context of thread "wil6210_wmi"
779 */
780void wmi_recv_cmd(struct wil6210_priv *wil)
781{
782 struct wil6210_mbox_ring_desc d_tail;
783 struct wil6210_mbox_hdr hdr;
784 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
785 struct pending_wmi_event *evt;
786 u8 *cmd;
787 void __iomem *src;
788 ulong flags;
a715c7dd 789 unsigned n;
0916d9f2 790 unsigned int num_immed_reply = 0;
2be7d22f 791
817f1853 792 if (!test_bit(wil_status_mbox_ready, wil->status)) {
4cf99c93 793 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
55f7acdd
VK		 794 return;
795 }
796
a715c7dd 797 for (n = 0;; n++) {
2be7d22f 798 u16 len;
95266dc0 799 bool q;
0916d9f2 800 bool immed_reply = false;
2be7d22f 801
b9eeb512
VK		 802 r->head = wil_r(wil, RGF_MBOX +
803 offsetof(struct wil6210_mbox_ctl, rx.head));
95266dc0
VK		 804 if (r->tail == r->head)
805 break;
2be7d22f 806
a715c7dd
VK		 807 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
808 r->head, r->tail);
809 /* read cmd descriptor from tail */
2be7d22f
VK		 810 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
811 sizeof(struct wil6210_mbox_ring_desc));
812 if (d_tail.sync == 0) {
813 wil_err(wil, "Mbox evt not owned by FW?\n");
95266dc0 814 break;
2be7d22f
VK		 815 }
816
a715c7dd 817 /* read cmd header from descriptor */
2be7d22f
VK		 818 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
819 wil_err(wil, "Mbox evt at 0x%08x?\n",
820 le32_to_cpu(d_tail.addr));
95266dc0 821 break;
2be7d22f 822 }
2be7d22f 823 len = le16_to_cpu(hdr.len);
a715c7dd
VK		 824 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
825 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
826 hdr.flags);
827
828 /* read cmd buffer from descriptor */
2be7d22f
VK		 829 src = wmi_buffer(wil, d_tail.addr) +
830 sizeof(struct wil6210_mbox_hdr);
831 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
832 event.wmi) + len, 4),
833 GFP_KERNEL);
14f8dc49 834 if (!evt)
95266dc0 835 break;
14f8dc49 836
2be7d22f
VK		 837 evt->event.hdr = hdr;
838 cmd = (void *)&evt->event.wmi;
839 wil_memcpy_fromio_32(cmd, src, len);
840 /* mark entry as empty */
b9eeb512
VK		 841 wil_w(wil, r->tail +
842 offsetof(struct wil6210_mbox_ring_desc, sync), 0);
2be7d22f 843 /* indicate */
2be7d22f 844 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
b874ddec
LD		 845 (len >= sizeof(struct wmi_cmd_hdr))) {
846 struct wmi_cmd_hdr *wmi = &evt->event.wmi;
847 u16 id = le16_to_cpu(wmi->command_id);
848 u32 tstamp = le32_to_cpu(wmi->fw_timestamp);
fe5c271e 849 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
0916d9f2
ME		 850 if (wil->reply_id && wil->reply_id == id) {
851 if (wil->reply_buf) {
852 memcpy(wil->reply_buf, wmi,
853 min(len, wil->reply_size));
854 immed_reply = true;
855 }
856 }
fe5c271e 857 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
8fe59627 858
f988b23f
VK		 859 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
860 id, wmi->mid, tstamp);
861 trace_wil6210_wmi_event(wmi, &wmi[1],
862 len - sizeof(*wmi));
2be7d22f 863 }
7743882d 864 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 865 &evt->event.hdr, sizeof(hdr) + len, true);
866
867 /* advance tail */
868 r->tail = r->base + ((r->tail - r->base +
869 sizeof(struct wil6210_mbox_ring_desc)) % r->size);
b9eeb512
VK		 870 wil_w(wil, RGF_MBOX +
871 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail);
2be7d22f 872
0916d9f2
ME		 873 if (immed_reply) {
874 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n",
875 __func__, wil->reply_id);
876 kfree(evt);
877 num_immed_reply++;
878 complete(&wil->wmi_call);
879 } else {
880 /* add to the pending list */
881 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
882 list_add_tail(&evt->list, &wil->pending_wmi_ev);
883 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
884 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
885 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
886 }
2be7d22f 887 }
95266dc0 888 /* normally, 1 event per IRQ should be processed */
0916d9f2
ME		 889 wil_dbg_wmi(wil, "%s -> %d events queued, %d completed\n", __func__,
890 n - num_immed_reply, num_immed_reply);
2be7d22f
VK		 891}
892
893int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
894 u16 reply_id, void *reply, u8 reply_size, int to_msec)
895{
896 int rc;
f4bbb829 897 unsigned long remain;
2be7d22f
VK		 898
899 mutex_lock(&wil->wmi_mutex);
900
fe5c271e
ME		 901 spin_lock(&wil->wmi_ev_lock);
902 wil->reply_id = reply_id;
903 wil->reply_buf = reply;
904 wil->reply_size = reply_size;
905 spin_unlock(&wil->wmi_ev_lock);
906
2be7d22f
VK		 907 rc = __wmi_send(wil, cmdid, buf, len);
908 if (rc)
909 goto out;
910
59502647
DL		 911 remain = wait_for_completion_timeout(&wil->wmi_call,
912 msecs_to_jiffies(to_msec));
2be7d22f
VK		 913 if (0 == remain) {
914 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
915 cmdid, reply_id, to_msec);
916 rc = -ETIME;
917 } else {
7743882d 918 wil_dbg_wmi(wil,
2be7d22f
VK		 919 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
920 cmdid, reply_id,
921 to_msec - jiffies_to_msecs(remain));
922 }
fe5c271e
ME		 923
924out:
925 spin_lock(&wil->wmi_ev_lock);
2be7d22f
VK		 926 wil->reply_id = 0;
927 wil->reply_buf = NULL;
928 wil->reply_size = 0;
fe5c271e
ME		 929 spin_unlock(&wil->wmi_ev_lock);
930
2be7d22f
VK		 931 mutex_unlock(&wil->wmi_mutex);
932
933 return rc;
934}
935
936int wmi_echo(struct wil6210_priv *wil)
937{
938 struct wmi_echo_cmd cmd = {
939 .value = cpu_to_le32(0x12345678),
940 };
941
942 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
a54a40da 943 WMI_ECHO_RSP_EVENTID, NULL, 0, 50);
2be7d22f
VK		 944}
945
946int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
947{
948 struct wmi_set_mac_address_cmd cmd;
949
a82553bb 950 ether_addr_copy(cmd.mac, addr);
2be7d22f 951
7743882d 952 wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
2be7d22f
VK		 953
954 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
955}
956
8e52fe30
HK		 957int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype,
958 u8 chan, u8 hidden_ssid)
2be7d22f 959{
b8023177
VK		 960 int rc;
961
962 struct wmi_pcp_start_cmd cmd = {
2be7d22f
VK		 963 .bcon_interval = cpu_to_le16(bi),
964 .network_type = wmi_nettype,
965 .disable_sec_offload = 1,
adc2d122 966 .channel = chan - 1,
1eb9d1e5 967 .pcp_max_assoc_sta = max_assoc_sta,
8e52fe30 968 .hidden_ssid = hidden_ssid,
2be7d22f 969 };
b8023177 970 struct {
b874ddec 971 struct wmi_cmd_hdr wmi;
b8023177
VK		 972 struct wmi_pcp_started_event evt;
973 } __packed reply;
2be7d22f 974
774974e5 975 if (!wil->privacy)
2be7d22f
VK		 976 cmd.disable_sec = 1;
977
1eb9d1e5
DL		 978 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
979 (cmd.pcp_max_assoc_sta <= 0)) {
980 wil_info(wil,
981 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
982 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
983 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
984 }
985
8b5c7f6c
VK		 986 /*
987 * Processing time may be huge, in case of secure AP it takes about
988 * 3500ms for FW to start AP
989 */
b8023177 990 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
8b5c7f6c 991 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
b8023177
VK		 992 if (rc)
993 return rc;
994
995 if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
996 rc = -EINVAL;
997
998 return rc;
999}
1000
1001int wmi_pcp_stop(struct wil6210_priv *wil)
1002{
1003 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
1004 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
2be7d22f
VK		 1005}
1006
1007int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
1008{
1009 struct wmi_set_ssid_cmd cmd = {
1010 .ssid_len = cpu_to_le32(ssid_len),
1011 };
1012
1013 if (ssid_len > sizeof(cmd.ssid))
1014 return -EINVAL;
1015
1016 memcpy(cmd.ssid, ssid, ssid_len);
1017
1018 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
1019}
1020
1021int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
1022{
1023 int rc;
1024 struct {
b874ddec 1025 struct wmi_cmd_hdr wmi;
2be7d22f
VK		 1026 struct wmi_set_ssid_cmd cmd;
1027 } __packed reply;
1028 int len; /* reply.cmd.ssid_len in CPU order */
1029
1030 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
1031 &reply, sizeof(reply), 20);
1032 if (rc)
1033 return rc;
1034
1035 len = le32_to_cpu(reply.cmd.ssid_len);
1036 if (len > sizeof(reply.cmd.ssid))
1037 return -EINVAL;
1038
1039 *ssid_len = len;
1040 memcpy(ssid, reply.cmd.ssid, len);
1041
1042 return 0;
1043}
1044
1045int wmi_set_channel(struct wil6210_priv *wil, int channel)
1046{
1047 struct wmi_set_pcp_channel_cmd cmd = {
1048 .channel = channel - 1,
1049 };
1050
1051 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
1052}
1053
1054int wmi_get_channel(struct wil6210_priv *wil, int *channel)
1055{
1056 int rc;
1057 struct {
b874ddec 1058 struct wmi_cmd_hdr wmi;
2be7d22f
VK		 1059 struct wmi_set_pcp_channel_cmd cmd;
1060 } __packed reply;
1061
1062 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
1063 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
1064 if (rc)
1065 return rc;
1066
1067 if (reply.cmd.channel > 3)
1068 return -EINVAL;
1069
1070 *channel = reply.cmd.channel + 1;
1071
1072 return 0;
1073}
1074
b8023177
VK		 1075int wmi_p2p_cfg(struct wil6210_priv *wil, int channel)
1076{
1077 struct wmi_p2p_cfg_cmd cmd = {
1078 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD,
1079 .channel = channel - 1,
1080 };
1081
1082 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd));
1083}
1084
2be7d22f 1085int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
230d8442 1086 const void *mac_addr, int key_usage)
2be7d22f
VK		 1087{
1088 struct wmi_delete_cipher_key_cmd cmd = {
1089 .key_index = key_index,
1090 };
1091
1092 if (mac_addr)
1093 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1094
1095 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1096}
1097
1098int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
230d8442
VK		 1099 const void *mac_addr, int key_len, const void *key,
1100 int key_usage)
2be7d22f
VK		 1101{
1102 struct wmi_add_cipher_key_cmd cmd = {
1103 .key_index = key_index,
230d8442 1104 .key_usage = key_usage,
2be7d22f
VK		 1105 .key_len = key_len,
1106 };
1107
1108 if (!key || (key_len > sizeof(cmd.key)))
1109 return -EINVAL;
1110
1111 memcpy(cmd.key, key, key_len);
1112 if (mac_addr)
1113 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1114
1115 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1116}
1117
1118int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
1119{
5421bf0c
VK		 1120 static const char *const names[] = {
1121 [WMI_FRAME_BEACON] = "BEACON",
1122 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ",
1123 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP",
1124 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ",
1125 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP",
1126 };
2be7d22f
VK		 1127 int rc;
1128 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
1129 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
8fe59627 1130
5421bf0c
VK		 1131 if (!cmd) {
1132 rc = -ENOMEM;
1133 goto out;
1134 }
ac4acdb7
VK		 1135 if (!ie)
1136 ie_len = 0;
2be7d22f
VK		 1137
1138 cmd->mgmt_frm_type = type;
1139 /* BUG: FW API define ieLen as u8. Will fix FW */
1140 cmd->ie_len = cpu_to_le16(ie_len);
1141 memcpy(cmd->ie_info, ie, ie_len);
03866e7d 1142 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
2be7d22f 1143 kfree(cmd);
5421bf0c
VK		 1144out:
1145 if (rc) {
1146 const char *name = type < ARRAY_SIZE(names) ?
1147 names[type] : "??";
1148 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc);
1149 }
2be7d22f
VK		 1150
1151 return rc;
1152}
1153
1647f12f
VK		 1154/**
1155 * wmi_rxon - turn radio on/off
1156 * @on: turn on if true, off otherwise
1157 *
1158 * Only switch radio. Channel should be set separately.
1159 * No timeout for rxon - radio turned on forever unless some other call
1160 * turns it off
1161 */
1162int wmi_rxon(struct wil6210_priv *wil, bool on)
1163{
1164 int rc;
1165 struct {
b874ddec 1166 struct wmi_cmd_hdr wmi;
1647f12f
VK		 1167 struct wmi_listen_started_event evt;
1168 } __packed reply;
1169
1170 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
1171
1172 if (on) {
1173 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1174 WMI_LISTEN_STARTED_EVENTID,
1175 &reply, sizeof(reply), 100);
1176 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1177 rc = -EINVAL;
1178 } else {
1179 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1180 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1181 }
1182
1183 return rc;
1184}
1185
47e19af9
VK		 1186int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1187{
1188 struct wireless_dev *wdev = wil->wdev;
1189 struct net_device *ndev = wil_to_ndev(wil);
1190 struct wmi_cfg_rx_chain_cmd cmd = {
1191 .action = WMI_RX_CHAIN_ADD,
1192 .rx_sw_ring = {
c44690a1 1193 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)),
47e19af9
VK		 1194 .ring_mem_base = cpu_to_le64(vring->pa),
1195 .ring_size = cpu_to_le16(vring->size),
1196 },
1197 .mid = 0, /* TODO - what is it? */
1198 .decap_trans_type = WMI_DECAP_TYPE_802_3,
b4490f42 1199 .reorder_type = WMI_RX_SW_REORDER,
ab954628 1200 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh),
47e19af9
VK		 1201 };
1202 struct {
b874ddec 1203 struct wmi_cmd_hdr wmi;
47e19af9
VK		 1204 struct wmi_cfg_rx_chain_done_event evt;
1205 } __packed evt;
1206 int rc;
1207
1208 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1209 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1210
1211 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1212 if (ch)
1213 cmd.sniffer_cfg.channel = ch->hw_value - 1;
1214 cmd.sniffer_cfg.phy_info_mode =
1215 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1216 cmd.sniffer_cfg.phy_support =
1217 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
4765332d 1218 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS);
504937d4
KE		 1219 } else {
1220 /* Initialize offload (in non-sniffer mode).
1221 * Linux IP stack always calculates IP checksum
1222 * HW always calculate TCP/UDP checksum
1223 */
1224 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
47e19af9 1225 }
c406ea7c
VK		 1226
1227 if (rx_align_2)
1228 cmd.l2_802_3_offload_ctrl |=
1229 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK;
1230
47e19af9
VK		 1231 /* typical time for secure PCP is 840ms */
1232 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1233 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1234 if (rc)
1235 return rc;
1236
1237 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1238
7743882d 1239 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
47e19af9
VK		 1240 le32_to_cpu(evt.evt.status), vring->hwtail);
1241
1242 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1243 rc = -EINVAL;
1244
1245 return rc;
1246}
1247
8c679675 1248int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
1a2780e0
VK		 1249{
1250 int rc;
1251 struct wmi_temp_sense_cmd cmd = {
8c679675
VK		 1252 .measure_baseband_en = cpu_to_le32(!!t_bb),
1253 .measure_rf_en = cpu_to_le32(!!t_rf),
1254 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW),
1a2780e0
VK		 1255 };
1256 struct {
b874ddec 1257 struct wmi_cmd_hdr wmi;
1a2780e0
VK		 1258 struct wmi_temp_sense_done_event evt;
1259 } __packed reply;
1260
1261 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1262 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1263 if (rc)
1264 return rc;
1265
8c679675
VK		 1266 if (t_bb)
1267 *t_bb = le32_to_cpu(reply.evt.baseband_t1000);
1268 if (t_rf)
1269 *t_rf = le32_to_cpu(reply.evt.rf_t1000);
1a2780e0
VK		 1270
1271 return 0;
1272}
1273
0916d9f2
ME		 1274int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason,
1275 bool full_disconnect)
4d55a0a1 1276{
3e9191fc
VK		 1277 int rc;
1278 u16 reason_code;
4d55a0a1
VK		 1279 struct wmi_disconnect_sta_cmd cmd = {
1280 .disconnect_reason = cpu_to_le16(reason),
1281 };
3e9191fc 1282 struct {
b874ddec 1283 struct wmi_cmd_hdr wmi;
3e9191fc
VK		 1284 struct wmi_disconnect_event evt;
1285 } __packed reply;
a82553bb
VK		 1286
1287 ether_addr_copy(cmd.dst_mac, mac);
4d55a0a1
VK		 1288
1289 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason);
1290
3e9191fc
VK		 1291 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd),
1292 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000);
1293 /* failure to disconnect in reasonable time treated as FW error */
1294 if (rc) {
1295 wil_fw_error_recovery(wil);
1296 return rc;
1297 }
1298
0916d9f2
ME		 1299 if (full_disconnect) {
1300 /* call event handler manually after processing wmi_call,
1301 * to avoid deadlock - disconnect event handler acquires
1302 * wil->mutex while it is already held here
1303 */
1304 reason_code = le16_to_cpu(reply.evt.protocol_reason_status);
3e9191fc 1305
0916d9f2
ME		 1306 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
1307 reply.evt.bssid, reason_code,
1308 reply.evt.disconnect_reason);
3e9191fc 1309
0916d9f2
ME		 1310 wil->sinfo_gen++;
1311 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true);
1312 }
3e9191fc 1313 return 0;
4d55a0a1
VK		 1314}
1315
3277213f
VK		 1316int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)
1317{
1318 struct wmi_vring_ba_en_cmd cmd = {
1319 .ringid = ringid,
1320 .agg_max_wsize = size,
1321 .ba_timeout = cpu_to_le16(timeout),
cbcf5866 1322 .amsdu = 0,
3277213f
VK		 1323 };
1324
1325 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__,
1326 ringid, size, timeout);
1327
1328 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd));
1329}
1330
26a359d9 1331int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason)
3277213f
VK		 1332{
1333 struct wmi_vring_ba_dis_cmd cmd = {
1334 .ringid = ringid,
1335 .reason = cpu_to_le16(reason),
1336 };
1337
1338 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__,
1339 ringid, reason);
1340
1341 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd));
1342}
1343
26a359d9
VK		 1344int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason)
1345{
1346 struct wmi_rcp_delba_cmd cmd = {
1347 .cidxtid = cidxtid,
1348 .reason = cpu_to_le16(reason),
1349 };
1350
1351 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__,
1352 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason);
1353
1354 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd));
1355}
1356
3277213f
VK		 1357int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
1358 u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
1359{
1360 int rc;
1361 struct wmi_rcp_addba_resp_cmd cmd = {
1362 .cidxtid = mk_cidxtid(cid, tid),
1363 .dialog_token = token,
1364 .status_code = cpu_to_le16(status),
1365 /* bit 0: A-MSDU supported
1366 * bit 1: policy (should be 0 for us)
1367 * bits 2..5: TID
1368 * bits 6..15: buffer size
1369 */
1370 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
1371 (agg_wsize << 6)),
1372 .ba_timeout = cpu_to_le16(timeout),
1373 };
1374 struct {
b874ddec 1375 struct wmi_cmd_hdr wmi;
3277213f
VK		 1376 struct wmi_rcp_addba_resp_sent_event evt;
1377 } __packed reply;
1378
1379 wil_dbg_wmi(wil,
1380 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
1381 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-");
1382
1383 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd),
230d8442
VK		 1384 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply),
1385 100);
3277213f
VK		 1386 if (rc)
1387 return rc;
1388
1389 if (reply.evt.status) {
1390 wil_err(wil, "ADDBA response failed with status %d\n",
1391 le16_to_cpu(reply.evt.status));
1392 rc = -EINVAL;
1393 }
1394
1395 return rc;
1396}
1397
2be7d22f
VK		 1398void wmi_event_flush(struct wil6210_priv *wil)
1399{
1400 struct pending_wmi_event *evt, *t;
1401
7743882d 1402 wil_dbg_wmi(wil, "%s()\n", __func__);
2be7d22f
VK		 1403
1404 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1405 list_del(&evt->list);
1406 kfree(evt);
1407 }
1408}
1409
1410static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1411 void *d, int len)
1412{
1413 uint i;
1414
1415 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1416 if (wmi_evt_handlers[i].eventid == id) {
1417 wmi_evt_handlers[i].handler(wil, id, d, len);
1418 return true;
1419 }
1420 }
1421
1422 return false;
1423}
1424
1425static void wmi_event_handle(struct wil6210_priv *wil,
1426 struct wil6210_mbox_hdr *hdr)
1427{
1428 u16 len = le16_to_cpu(hdr->len);
1429
1430 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
b874ddec
LD		 1431 (len >= sizeof(struct wmi_cmd_hdr))) {
1432 struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]);
2be7d22f 1433 void *evt_data = (void *)(&wmi[1]);
b874ddec 1434 u16 id = le16_to_cpu(wmi->command_id);
028e1836
VK		 1435
1436 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1437 id, wil->reply_id);
2be7d22f
VK		 1438 /* check if someone waits for this event */
1439 if (wil->reply_id && wil->reply_id == id) {
0916d9f2
ME		 1440 WARN_ON(wil->reply_buf);
1441 wmi_evt_call_handler(wil, id, evt_data,
1442 len - sizeof(*wmi));
1443 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n",
1444 __func__, id);
59502647 1445 complete(&wil->wmi_call);
2be7d22f
VK		 1446 return;
1447 }
1448 /* unsolicited event */
1449 /* search for handler */
1450 if (!wmi_evt_call_handler(wil, id, evt_data,
1451 len - sizeof(*wmi))) {
a3ce5ccd 1452 wil_info(wil, "Unhandled event 0x%04x\n", id);
2be7d22f
VK		 1453 }
1454 } else {
1455 wil_err(wil, "Unknown event type\n");
1456 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1457 hdr, sizeof(*hdr) + len, true);
1458 }
1459}
1460
1461/*
1462 * Retrieve next WMI event from the pending list
1463 */
1464static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1465{
1466 ulong flags;
1467 struct list_head *ret = NULL;
1468
1469 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1470
1471 if (!list_empty(&wil->pending_wmi_ev)) {
1472 ret = wil->pending_wmi_ev.next;
1473 list_del(ret);
1474 }
1475
1476 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1477
1478 return ret;
1479}
1480
1481/*
1482 * Handler for the WMI events
1483 */
1484void wmi_event_worker(struct work_struct *work)
1485{
1486 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1487 wmi_event_worker);
1488 struct pending_wmi_event *evt;
1489 struct list_head *lh;
1490
028e1836 1491 wil_dbg_wmi(wil, "Start %s\n", __func__);
2be7d22f
VK		 1492 while ((lh = next_wmi_ev(wil)) != NULL) {
1493 evt = list_entry(lh, struct pending_wmi_event, list);
1494 wmi_event_handle(wil, &evt->event.hdr);
1495 kfree(evt);
1496 }
028e1836 1497 wil_dbg_wmi(wil, "Finished %s\n", __func__);
2be7d22f 1498}
Linux kernel - Deliverables
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