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wil6210: support BAR (BlockAck Req)
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / wmi.c
CommitLineData
2be7d22f 1/*
230d8442 2 * Copyright (c) 2012-2015 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;
179 struct wil6210_mbox_hdr_wmi wmi;
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,
2be7d22f 188 .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--) {
b9eeb512
VK		 231 r->tail = wil_r(wil, RGF_MBOX +
232 offsetof(struct wil6210_mbox_ctl, tx.tail));
2be7d22f
VK		 233 if (next_head != r->tail)
234 break;
235 msleep(20);
236 }
237 if (next_head == r->tail) {
238 wil_err(wil, "WMI ring full\n");
239 return -EBUSY;
240 }
241 dst = wmi_buffer(wil, d_head.addr);
242 if (!dst) {
243 wil_err(wil, "invalid WMI buffer: 0x%08x\n",
244 le32_to_cpu(d_head.addr));
245 return -EINVAL;
246 }
247 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
248 /* set command */
7743882d
VK		 249 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len);
250 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
2be7d22f 251 sizeof(cmd), true);
7743882d 252 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
2be7d22f
VK		 253 len, true);
254 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
255 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
256 /* mark entry as full */
b9eeb512 257 wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1);
2be7d22f 258 /* advance next ptr */
b9eeb512
VK		 259 wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head),
260 r->head = next_head);
2be7d22f 261
f988b23f 262 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
98658095 263
2be7d22f 264 /* interrupt to FW */
b9eeb512
VK		 265 wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS),
266 SW_INT_MBOX);
2be7d22f
VK		 267
268 return 0;
269}
270
271int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
272{
273 int rc;
274
275 mutex_lock(&wil->wmi_mutex);
276 rc = __wmi_send(wil, cmdid, buf, len);
277 mutex_unlock(&wil->wmi_mutex);
278
279 return rc;
280}
281
282/*=== Event handlers ===*/
283static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
284{
2be7d22f
VK		 285 struct wireless_dev *wdev = wil->wdev;
286 struct wmi_ready_event *evt = d;
8fe59627 287
b8023177
VK		 288 wil->fw_version = le32_to_cpu(evt->sw_version);
289 wil->n_mids = evt->numof_additional_mids;
2be7d22f 290
15e23124
VK		 291 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version,
292 evt->mac, wil->n_mids);
2cd0f021 293 /* ignore MAC address, we already have it from the boot loader */
2be7d22f 294 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version),
b8023177 295 "%d", wil->fw_version);
2be7d22f
VK		 296}
297
298static void wmi_evt_fw_ready(struct wil6210_priv *wil, int id, void *d,
299 int len)
300{
15e23124 301 wil_dbg_wmi(wil, "WMI: got FW ready event\n");
2be7d22f 302
c33407a8 303 wil_set_recovery_state(wil, fw_recovery_idle);
9419b6a2 304 set_bit(wil_status_fwready, wil->status);
59502647 305 /* let the reset sequence continue */
2be7d22f
VK		 306 complete(&wil->wmi_ready);
307}
308
309static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
310{
311 struct wmi_rx_mgmt_packet_event *data = d;
312 struct wiphy *wiphy = wil_to_wiphy(wil);
313 struct ieee80211_mgmt *rx_mgmt_frame =
314 (struct ieee80211_mgmt *)data->payload;
90d89e9a
VK		 315 int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload);
316 int ch_no;
317 u32 freq;
318 struct ieee80211_channel *channel;
319 s32 signal;
320 __le16 fc;
321 u32 d_len;
322 u16 d_status;
323
324 if (flen < 0) {
325 wil_err(wil, "MGMT Rx: short event, len %d\n", len);
326 return;
327 }
328
329 d_len = le32_to_cpu(data->info.len);
330 if (d_len != flen) {
331 wil_err(wil,
332 "MGMT Rx: length mismatch, d_len %d should be %d\n",
333 d_len, flen);
334 return;
335 }
336
337 ch_no = data->info.channel + 1;
338 freq = ieee80211_channel_to_frequency(ch_no, IEEE80211_BAND_60GHZ);
339 channel = ieee80211_get_channel(wiphy, freq);
340 signal = data->info.sqi;
341 d_status = le16_to_cpu(data->info.status);
342 fc = rx_mgmt_frame->frame_control;
343
344 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n",
b8b33a3a
VK		 345 data->info.channel, data->info.mcs, data->info.snr,
346 data->info.sqi);
f27dbf78
VK		 347 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
348 le16_to_cpu(fc));
7743882d 349 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
2be7d22f 350 data->info.qid, data->info.mid, data->info.cid);
90d89e9a
VK		 351 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame,
352 d_len, true);
2be7d22f
VK		 353
354 if (!channel) {
355 wil_err(wil, "Frame on unsupported channel\n");
356 return;
357 }
358
359 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
360 struct cfg80211_bss *bss;
8eea944a
VK		 361 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
362 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
363 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
364 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
365 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
366 u.beacon.variable);
367 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
368 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
369 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
370 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
371 ie_len, true);
a0f7845b
VK		 372
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
VK		 382 } else {
383 cfg80211_rx_mgmt(wil->wdev, freq, signal,
970fdfa8 384 (void *)rx_mgmt_frame, d_len, 0);
2be7d22f
VK		 385 }
386}
387
90d89e9a
VK		 388static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
389{
390 struct wmi_tx_mgmt_packet_event *data = d;
391 struct ieee80211_mgmt *mgmt_frame =
392 (struct ieee80211_mgmt *)data->payload;
393 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload);
394
395 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame,
396 flen, true);
397}
398
2be7d22f
VK		 399static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
400 void *d, int len)
401{
402 if (wil->scan_request) {
403 struct wmi_scan_complete_event *data = d;
6c2faf09 404 bool aborted = (data->status != WMI_SCAN_SUCCESS);
2be7d22f 405
7743882d 406 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
2a91d7d0
VK		 407 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
408 wil->scan_request, aborted);
409
047e5d74 410 del_timer_sync(&wil->scan_timer);
2be7d22f
VK		 411 cfg80211_scan_done(wil->scan_request, aborted);
412 wil->scan_request = NULL;
413 } else {
414 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
415 }
416}
417
418static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
419{
420 struct net_device *ndev = wil_to_ndev(wil);
421 struct wireless_dev *wdev = wil->wdev;
422 struct wmi_connect_event *evt = d;
423 int ch; /* channel number */
424 struct station_info sinfo;
425 u8 *assoc_req_ie, *assoc_resp_ie;
426 size_t assoc_req_ielen, assoc_resp_ielen;
427 /* capinfo(u16) + listen_interval(u16) + IEs */
428 const size_t assoc_req_ie_offset = sizeof(u16) * 2;
429 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
430 const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
431
432 if (len < sizeof(*evt)) {
433 wil_err(wil, "Connect event too short : %d bytes\n", len);
434 return;
435 }
436 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
437 evt->assoc_resp_len) {
438 wil_err(wil,
439 "Connect event corrupted : %d != %d + %d + %d + %d\n",
440 len, (int)sizeof(*evt), evt->beacon_ie_len,
441 evt->assoc_req_len, evt->assoc_resp_len);
442 return;
443 }
3df2cd36
VK		 444 if (evt->cid >= WIL6210_MAX_CID) {
445 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
446 return;
447 }
448
2be7d22f 449 ch = evt->channel + 1;
7743882d 450 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n",
2be7d22f 451 evt->bssid, ch, evt->cid);
7743882d 452 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 453 evt->assoc_info, len - sizeof(*evt), true);
454
455 /* figure out IE's */
456 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
457 assoc_req_ie_offset];
458 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
459 if (evt->assoc_req_len <= assoc_req_ie_offset) {
460 assoc_req_ie = NULL;
461 assoc_req_ielen = 0;
462 }
463
464 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
465 evt->assoc_req_len +
466 assoc_resp_ie_offset];
467 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
468 if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
469 assoc_resp_ie = NULL;
470 assoc_resp_ielen = 0;
471 }
472
473 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
474 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
9419b6a2 475 if (!test_bit(wil_status_fwconnecting, wil->status)) {
2be7d22f
VK		 476 wil_err(wil, "Not in connecting state\n");
477 return;
478 }
479 del_timer_sync(&wil->connect_timer);
480 cfg80211_connect_result(ndev, evt->bssid,
481 assoc_req_ie, assoc_req_ielen,
482 assoc_resp_ie, assoc_resp_ielen,
483 WLAN_STATUS_SUCCESS, GFP_KERNEL);
484
485 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
486 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
487 memset(&sinfo, 0, sizeof(sinfo));
488
489 sinfo.generation = wil->sinfo_gen++;
490
491 if (assoc_req_ie) {
492 sinfo.assoc_req_ies = assoc_req_ie;
493 sinfo.assoc_req_ies_len = assoc_req_ielen;
2be7d22f
VK		 494 }
495
496 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
497 }
9419b6a2
VK		 498 clear_bit(wil_status_fwconnecting, wil->status);
499 set_bit(wil_status_fwconnected, wil->status);
2be7d22f
VK		 500
501 /* FIXME FW can transmit only ucast frames to peer */
502 /* FIXME real ring_id instead of hard coded 0 */
a82553bb 503 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid);
3df2cd36 504 wil->sta[evt->cid].status = wil_sta_conn_pending;
2be7d22f
VK		 505
506 wil->pending_connect_cid = evt->cid;
3277213f 507 queue_work(wil->wq_service, &wil->connect_worker);
2be7d22f
VK		 508}
509
510static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
511 void *d, int len)
512{
513 struct wmi_disconnect_event *evt = d;
4821e6d8 514 u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
2be7d22f 515
4821e6d8
VK		 516 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
517 evt->bssid, reason_code, evt->disconnect_reason);
2be7d22f
VK		 518
519 wil->sinfo_gen++;
520
097638a0 521 mutex_lock(&wil->mutex);
4821e6d8 522 wil6210_disconnect(wil, evt->bssid, reason_code, true);
097638a0 523 mutex_unlock(&wil->mutex);
2be7d22f
VK		 524}
525
2be7d22f
VK		 526/*
527 * Firmware reports EAPOL frame using WME event.
528 * Reconstruct Ethernet frame and deliver it via normal Rx
529 */
530static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
531 void *d, int len)
532{
533 struct net_device *ndev = wil_to_ndev(wil);
534 struct wmi_eapol_rx_event *evt = d;
535 u16 eapol_len = le16_to_cpu(evt->eapol_len);
536 int sz = eapol_len + ETH_HLEN;
537 struct sk_buff *skb;
538 struct ethhdr *eth;
c8b78b5f
VK		 539 int cid;
540 struct wil_net_stats *stats = NULL;
2be7d22f 541
7743882d 542 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
2be7d22f
VK		 543 evt->src_mac);
544
c8b78b5f
VK		 545 cid = wil_find_cid(wil, evt->src_mac);
546 if (cid >= 0)
547 stats = &wil->sta[cid].stats;
548
2be7d22f
VK		 549 if (eapol_len > 196) { /* TODO: revisit size limit */
550 wil_err(wil, "EAPOL too large\n");
551 return;
552 }
553
554 skb = alloc_skb(sz, GFP_KERNEL);
555 if (!skb) {
556 wil_err(wil, "Failed to allocate skb\n");
557 return;
558 }
c8b78b5f 559
2be7d22f 560 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
a82553bb
VK		 561 ether_addr_copy(eth->h_dest, ndev->dev_addr);
562 ether_addr_copy(eth->h_source, evt->src_mac);
2be7d22f
VK		 563 eth->h_proto = cpu_to_be16(ETH_P_PAE);
564 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
565 skb->protocol = eth_type_trans(skb, ndev);
566 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
567 ndev->stats.rx_packets++;
c8b78b5f
VK		 568 ndev->stats.rx_bytes += sz;
569 if (stats) {
570 stats->rx_packets++;
571 stats->rx_bytes += sz;
572 }
2be7d22f
VK		 573 } else {
574 ndev->stats.rx_dropped++;
c8b78b5f
VK		 575 if (stats)
576 stats->rx_dropped++;
2be7d22f
VK		 577 }
578}
579
230d8442 580static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len)
3a124ed6 581{
230d8442
VK		 582 struct wmi_vring_en_event *evt = d;
583 u8 vri = evt->vring_index;
3a124ed6 584
230d8442 585 wil_dbg_wmi(wil, "Enable vring %d\n", vri);
3a124ed6 586
230d8442
VK		 587 if (vri >= ARRAY_SIZE(wil->vring_tx)) {
588 wil_err(wil, "Enable for invalid vring %d\n", vri);
e58c9f70
VK		 589 return;
590 }
230d8442
VK		 591 wil->vring_tx_data[vri].dot1x_open = true;
592 if (vri == wil->bcast_vring) /* no BA for bcast */
e58c9f70 593 return;
230d8442
VK		 594 if (agg_wsize >= 0)
595 wil_addba_tx_request(wil, vri, agg_wsize);
3442a504
VK		 596}
597
249a382b
VK		 598static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
599 int len)
600{
601 struct wmi_vring_ba_status_event *evt = d;
3277213f 602 struct vring_tx_data *txdata;
249a382b 603
cbcf5866 604 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
7b05b0ab
VK		 605 evt->ringid,
606 evt->status == WMI_BA_AGREED ? "OK" : "N/A",
cbcf5866
VK		 607 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
608 evt->amsdu ? "+" : "-");
7b05b0ab
VK		 609
610 if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
611 wil_err(wil, "invalid ring id %d\n", evt->ringid);
612 return;
b4490f42
VK		 613 }
614
3277213f
VK		 615 if (evt->status != WMI_BA_AGREED) {
616 evt->ba_timeout = 0;
617 evt->agg_wsize = 0;
cbcf5866 618 evt->amsdu = 0;
7b05b0ab
VK		 619 }
620
3277213f 621 txdata = &wil->vring_tx_data[evt->ringid];
ec81b5ad 622
3277213f
VK		 623 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
624 txdata->agg_wsize = evt->agg_wsize;
cbcf5866 625 txdata->agg_amsdu = evt->amsdu;
3a124ed6 626 txdata->addba_in_progress = false;
3277213f 627}
ec81b5ad 628
3277213f
VK		 629static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
630 int len)
631{
632 struct wmi_rcp_addba_req_event *evt = d;
ec81b5ad 633
3277213f
VK		 634 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
635 evt->ba_param_set, evt->ba_timeout,
636 evt->ba_seq_ctrl);
637}
ec81b5ad 638
3277213f 639static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
bd33273b 640__acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
3277213f
VK		 641{
642 struct wmi_delba_event *evt = d;
643 u8 cid, tid;
644 u16 reason = __le16_to_cpu(evt->reason);
645 struct wil_sta_info *sta;
646 struct wil_tid_ampdu_rx *r;
3277213f 647
bd33273b 648 might_sleep();
3277213f
VK		 649 parse_cidxtid(evt->cidxtid, &cid, &tid);
650 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
651 cid, tid,
652 evt->from_initiator ? "originator" : "recipient",
653 reason);
654 if (!evt->from_initiator) {
655 int i;
656 /* find Tx vring it belongs to */
657 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
658 if ((wil->vring2cid_tid[i][0] == cid) &&
659 (wil->vring2cid_tid[i][1] == tid)) {
660 struct vring_tx_data *txdata =
661 &wil->vring_tx_data[i];
662
663 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
664 txdata->agg_timeout = 0;
665 txdata->agg_wsize = 0;
3a124ed6 666 txdata->addba_in_progress = false;
3277213f
VK		 667
668 break; /* max. 1 matching ring */
669 }
670 }
671 if (i >= ARRAY_SIZE(wil->vring2cid_tid))
672 wil_err(wil, "DELBA: unable to find Tx vring\n");
673 return;
7b05b0ab 674 }
8c86f757 675
3277213f
VK		 676 sta = &wil->sta[cid];
677
bd33273b 678 spin_lock_bh(&sta->tid_rx_lock);
3277213f
VK		 679
680 r = sta->tid_rx[tid];
681 sta->tid_rx[tid] = NULL;
682 wil_tid_ampdu_rx_free(wil, r);
683
bd33273b 684 spin_unlock_bh(&sta->tid_rx_lock);
249a382b
VK		 685}
686
2be7d22f
VK		 687static const struct {
688 int eventid;
689 void (*handler)(struct wil6210_priv *wil, int eventid,
690 void *data, int data_len);
691} wmi_evt_handlers[] = {
692 {WMI_READY_EVENTID, wmi_evt_ready},
693 {WMI_FW_READY_EVENTID, wmi_evt_fw_ready},
694 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
90d89e9a 695 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt},
2be7d22f
VK		 696 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
697 {WMI_CONNECT_EVENTID, wmi_evt_connect},
698 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
2be7d22f 699 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
249a382b 700 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
3277213f
VK		 701 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req},
702 {WMI_DELBA_EVENTID, wmi_evt_delba},
230d8442 703 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en},
2be7d22f
VK		 704};
705
706/*
707 * Run in IRQ context
708 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
709 * that will be eventually handled by the @wmi_event_worker in the thread
710 * context of thread "wil6210_wmi"
711 */
712void wmi_recv_cmd(struct wil6210_priv *wil)
713{
714 struct wil6210_mbox_ring_desc d_tail;
715 struct wil6210_mbox_hdr hdr;
716 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
717 struct pending_wmi_event *evt;
718 u8 *cmd;
719 void __iomem *src;
720 ulong flags;
a715c7dd 721 unsigned n;
2be7d22f 722
9419b6a2 723 if (!test_bit(wil_status_reset_done, wil->status)) {
4cf99c93 724 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
55f7acdd
VK		 725 return;
726 }
727
a715c7dd 728 for (n = 0;; n++) {
2be7d22f 729 u16 len;
95266dc0 730 bool q;
2be7d22f 731
b9eeb512
VK		 732 r->head = wil_r(wil, RGF_MBOX +
733 offsetof(struct wil6210_mbox_ctl, rx.head));
95266dc0
VK		 734 if (r->tail == r->head)
735 break;
2be7d22f 736
a715c7dd
VK		 737 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
738 r->head, r->tail);
739 /* read cmd descriptor from tail */
2be7d22f
VK		 740 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
741 sizeof(struct wil6210_mbox_ring_desc));
742 if (d_tail.sync == 0) {
743 wil_err(wil, "Mbox evt not owned by FW?\n");
95266dc0 744 break;
2be7d22f
VK		 745 }
746
a715c7dd 747 /* read cmd header from descriptor */
2be7d22f
VK		 748 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
749 wil_err(wil, "Mbox evt at 0x%08x?\n",
750 le32_to_cpu(d_tail.addr));
95266dc0 751 break;
2be7d22f 752 }
2be7d22f 753 len = le16_to_cpu(hdr.len);
a715c7dd
VK		 754 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
755 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
756 hdr.flags);
757
758 /* read cmd buffer from descriptor */
2be7d22f
VK		 759 src = wmi_buffer(wil, d_tail.addr) +
760 sizeof(struct wil6210_mbox_hdr);
761 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
762 event.wmi) + len, 4),
763 GFP_KERNEL);
14f8dc49 764 if (!evt)
95266dc0 765 break;
14f8dc49 766
2be7d22f
VK		 767 evt->event.hdr = hdr;
768 cmd = (void *)&evt->event.wmi;
769 wil_memcpy_fromio_32(cmd, src, len);
770 /* mark entry as empty */
b9eeb512
VK		 771 wil_w(wil, r->tail +
772 offsetof(struct wil6210_mbox_ring_desc, sync), 0);
2be7d22f 773 /* indicate */
2be7d22f
VK		 774 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
775 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
f988b23f
VK		 776 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi;
777 u16 id = le16_to_cpu(wmi->id);
778 u32 tstamp = le32_to_cpu(wmi->timestamp);
8fe59627 779
f988b23f
VK		 780 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
781 id, wmi->mid, tstamp);
782 trace_wil6210_wmi_event(wmi, &wmi[1],
783 len - sizeof(*wmi));
2be7d22f 784 }
7743882d 785 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
2be7d22f
VK		 786 &evt->event.hdr, sizeof(hdr) + len, true);
787
788 /* advance tail */
789 r->tail = r->base + ((r->tail - r->base +
790 sizeof(struct wil6210_mbox_ring_desc)) % r->size);
b9eeb512
VK		 791 wil_w(wil, RGF_MBOX +
792 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail);
2be7d22f
VK		 793
794 /* add to the pending list */
795 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
796 list_add_tail(&evt->list, &wil->pending_wmi_ev);
797 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
95266dc0
VK		 798 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
799 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
2be7d22f 800 }
95266dc0
VK		 801 /* normally, 1 event per IRQ should be processed */
802 wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n);
2be7d22f
VK		 803}
804
805int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
806 u16 reply_id, void *reply, u8 reply_size, int to_msec)
807{
808 int rc;
f4bbb829 809 unsigned long remain;
2be7d22f
VK		 810
811 mutex_lock(&wil->wmi_mutex);
812
813 rc = __wmi_send(wil, cmdid, buf, len);
814 if (rc)
815 goto out;
816
817 wil->reply_id = reply_id;
818 wil->reply_buf = reply;
819 wil->reply_size = reply_size;
59502647
DL		 820 remain = wait_for_completion_timeout(&wil->wmi_call,
821 msecs_to_jiffies(to_msec));
2be7d22f
VK		 822 if (0 == remain) {
823 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
824 cmdid, reply_id, to_msec);
825 rc = -ETIME;
826 } else {
7743882d 827 wil_dbg_wmi(wil,
2be7d22f
VK		 828 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
829 cmdid, reply_id,
830 to_msec - jiffies_to_msecs(remain));
831 }
832 wil->reply_id = 0;
833 wil->reply_buf = NULL;
834 wil->reply_size = 0;
835 out:
836 mutex_unlock(&wil->wmi_mutex);
837
838 return rc;
839}
840
841int wmi_echo(struct wil6210_priv *wil)
842{
843 struct wmi_echo_cmd cmd = {
844 .value = cpu_to_le32(0x12345678),
845 };
846
847 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
a54a40da 848 WMI_ECHO_RSP_EVENTID, NULL, 0, 50);
2be7d22f
VK		 849}
850
851int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
852{
853 struct wmi_set_mac_address_cmd cmd;
854
a82553bb 855 ether_addr_copy(cmd.mac, addr);
2be7d22f 856
7743882d 857 wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
2be7d22f
VK		 858
859 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
860}
861
8e52fe30
HK		 862int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype,
863 u8 chan, u8 hidden_ssid)
2be7d22f 864{
b8023177
VK		 865 int rc;
866
867 struct wmi_pcp_start_cmd cmd = {
2be7d22f
VK		 868 .bcon_interval = cpu_to_le16(bi),
869 .network_type = wmi_nettype,
870 .disable_sec_offload = 1,
adc2d122 871 .channel = chan - 1,
1eb9d1e5 872 .pcp_max_assoc_sta = max_assoc_sta,
8e52fe30 873 .hidden_ssid = hidden_ssid,
2be7d22f 874 };
b8023177
VK		 875 struct {
876 struct wil6210_mbox_hdr_wmi wmi;
877 struct wmi_pcp_started_event evt;
878 } __packed reply;
2be7d22f 879
774974e5 880 if (!wil->privacy)
2be7d22f
VK		 881 cmd.disable_sec = 1;
882
1eb9d1e5
DL		 883 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
884 (cmd.pcp_max_assoc_sta <= 0)) {
885 wil_info(wil,
886 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
887 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
888 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
889 }
890
8b5c7f6c
VK		 891 /*
892 * Processing time may be huge, in case of secure AP it takes about
893 * 3500ms for FW to start AP
894 */
b8023177 895 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
8b5c7f6c 896 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
b8023177
VK		 897 if (rc)
898 return rc;
899
900 if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
901 rc = -EINVAL;
902
903 return rc;
904}
905
906int wmi_pcp_stop(struct wil6210_priv *wil)
907{
908 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
909 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
2be7d22f
VK		 910}
911
912int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
913{
914 struct wmi_set_ssid_cmd cmd = {
915 .ssid_len = cpu_to_le32(ssid_len),
916 };
917
918 if (ssid_len > sizeof(cmd.ssid))
919 return -EINVAL;
920
921 memcpy(cmd.ssid, ssid, ssid_len);
922
923 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
924}
925
926int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
927{
928 int rc;
929 struct {
930 struct wil6210_mbox_hdr_wmi wmi;
931 struct wmi_set_ssid_cmd cmd;
932 } __packed reply;
933 int len; /* reply.cmd.ssid_len in CPU order */
934
935 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
936 &reply, sizeof(reply), 20);
937 if (rc)
938 return rc;
939
940 len = le32_to_cpu(reply.cmd.ssid_len);
941 if (len > sizeof(reply.cmd.ssid))
942 return -EINVAL;
943
944 *ssid_len = len;
945 memcpy(ssid, reply.cmd.ssid, len);
946
947 return 0;
948}
949
950int wmi_set_channel(struct wil6210_priv *wil, int channel)
951{
952 struct wmi_set_pcp_channel_cmd cmd = {
953 .channel = channel - 1,
954 };
955
956 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
957}
958
959int wmi_get_channel(struct wil6210_priv *wil, int *channel)
960{
961 int rc;
962 struct {
963 struct wil6210_mbox_hdr_wmi wmi;
964 struct wmi_set_pcp_channel_cmd cmd;
965 } __packed reply;
966
967 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
968 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
969 if (rc)
970 return rc;
971
972 if (reply.cmd.channel > 3)
973 return -EINVAL;
974
975 *channel = reply.cmd.channel + 1;
976
977 return 0;
978}
979
b8023177
VK		 980int wmi_p2p_cfg(struct wil6210_priv *wil, int channel)
981{
982 struct wmi_p2p_cfg_cmd cmd = {
983 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD,
984 .channel = channel - 1,
985 };
986
987 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd));
988}
989
2be7d22f 990int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
230d8442 991 const void *mac_addr, int key_usage)
2be7d22f
VK		 992{
993 struct wmi_delete_cipher_key_cmd cmd = {
994 .key_index = key_index,
995 };
996
997 if (mac_addr)
998 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
999
1000 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1001}
1002
1003int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
230d8442
VK		 1004 const void *mac_addr, int key_len, const void *key,
1005 int key_usage)
2be7d22f
VK		 1006{
1007 struct wmi_add_cipher_key_cmd cmd = {
1008 .key_index = key_index,
230d8442 1009 .key_usage = key_usage,
2be7d22f
VK		 1010 .key_len = key_len,
1011 };
1012
1013 if (!key || (key_len > sizeof(cmd.key)))
1014 return -EINVAL;
1015
1016 memcpy(cmd.key, key, key_len);
1017 if (mac_addr)
1018 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1019
1020 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1021}
1022
1023int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
1024{
5421bf0c
VK		 1025 static const char *const names[] = {
1026 [WMI_FRAME_BEACON] = "BEACON",
1027 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ",
1028 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP",
1029 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ",
1030 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP",
1031 };
2be7d22f
VK		 1032 int rc;
1033 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
1034 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
8fe59627 1035
5421bf0c
VK		 1036 if (!cmd) {
1037 rc = -ENOMEM;
1038 goto out;
1039 }
ac4acdb7
VK		 1040 if (!ie)
1041 ie_len = 0;
2be7d22f
VK		 1042
1043 cmd->mgmt_frm_type = type;
1044 /* BUG: FW API define ieLen as u8. Will fix FW */
1045 cmd->ie_len = cpu_to_le16(ie_len);
1046 memcpy(cmd->ie_info, ie, ie_len);
03866e7d 1047 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
2be7d22f 1048 kfree(cmd);
5421bf0c
VK		 1049out:
1050 if (rc) {
1051 const char *name = type < ARRAY_SIZE(names) ?
1052 names[type] : "??";
1053 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc);
1054 }
2be7d22f
VK		 1055
1056 return rc;
1057}
1058
1647f12f
VK		 1059/**
1060 * wmi_rxon - turn radio on/off
1061 * @on: turn on if true, off otherwise
1062 *
1063 * Only switch radio. Channel should be set separately.
1064 * No timeout for rxon - radio turned on forever unless some other call
1065 * turns it off
1066 */
1067int wmi_rxon(struct wil6210_priv *wil, bool on)
1068{
1069 int rc;
1070 struct {
1071 struct wil6210_mbox_hdr_wmi wmi;
1072 struct wmi_listen_started_event evt;
1073 } __packed reply;
1074
1075 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
1076
1077 if (on) {
1078 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1079 WMI_LISTEN_STARTED_EVENTID,
1080 &reply, sizeof(reply), 100);
1081 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1082 rc = -EINVAL;
1083 } else {
1084 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1085 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1086 }
1087
1088 return rc;
1089}
1090
47e19af9
VK		 1091int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1092{
1093 struct wireless_dev *wdev = wil->wdev;
1094 struct net_device *ndev = wil_to_ndev(wil);
1095 struct wmi_cfg_rx_chain_cmd cmd = {
1096 .action = WMI_RX_CHAIN_ADD,
1097 .rx_sw_ring = {
c44690a1 1098 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)),
47e19af9
VK		 1099 .ring_mem_base = cpu_to_le64(vring->pa),
1100 .ring_size = cpu_to_le16(vring->size),
1101 },
1102 .mid = 0, /* TODO - what is it? */
1103 .decap_trans_type = WMI_DECAP_TYPE_802_3,
b4490f42 1104 .reorder_type = WMI_RX_SW_REORDER,
ab954628 1105 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh),
47e19af9
VK		 1106 };
1107 struct {
1108 struct wil6210_mbox_hdr_wmi wmi;
1109 struct wmi_cfg_rx_chain_done_event evt;
1110 } __packed evt;
1111 int rc;
1112
1113 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1114 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1115
1116 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1117 if (ch)
1118 cmd.sniffer_cfg.channel = ch->hw_value - 1;
1119 cmd.sniffer_cfg.phy_info_mode =
1120 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1121 cmd.sniffer_cfg.phy_support =
1122 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
1123 ? WMI_SNIFFER_CP : WMI_SNIFFER_DP);
504937d4
KE		 1124 } else {
1125 /* Initialize offload (in non-sniffer mode).
1126 * Linux IP stack always calculates IP checksum
1127 * HW always calculate TCP/UDP checksum
1128 */
1129 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
47e19af9 1130 }
c406ea7c
VK		 1131
1132 if (rx_align_2)
1133 cmd.l2_802_3_offload_ctrl |=
1134 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK;
1135
47e19af9
VK		 1136 /* typical time for secure PCP is 840ms */
1137 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1138 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1139 if (rc)
1140 return rc;
1141
1142 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1143
7743882d 1144 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
47e19af9
VK		 1145 le32_to_cpu(evt.evt.status), vring->hwtail);
1146
1147 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1148 rc = -EINVAL;
1149
1150 return rc;
1151}
1152
8c679675 1153int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
1a2780e0
VK		 1154{
1155 int rc;
1156 struct wmi_temp_sense_cmd cmd = {
8c679675
VK		 1157 .measure_baseband_en = cpu_to_le32(!!t_bb),
1158 .measure_rf_en = cpu_to_le32(!!t_rf),
1159 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW),
1a2780e0
VK		 1160 };
1161 struct {
1162 struct wil6210_mbox_hdr_wmi wmi;
1163 struct wmi_temp_sense_done_event evt;
1164 } __packed reply;
1165
1166 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1167 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1168 if (rc)
1169 return rc;
1170
8c679675
VK		 1171 if (t_bb)
1172 *t_bb = le32_to_cpu(reply.evt.baseband_t1000);
1173 if (t_rf)
1174 *t_rf = le32_to_cpu(reply.evt.rf_t1000);
1a2780e0
VK		 1175
1176 return 0;
1177}
1178
4d55a0a1
VK		 1179int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason)
1180{
3e9191fc
VK		 1181 int rc;
1182 u16 reason_code;
4d55a0a1
VK		 1183 struct wmi_disconnect_sta_cmd cmd = {
1184 .disconnect_reason = cpu_to_le16(reason),
1185 };
3e9191fc
VK		 1186 struct {
1187 struct wil6210_mbox_hdr_wmi wmi;
1188 struct wmi_disconnect_event evt;
1189 } __packed reply;
a82553bb
VK		 1190
1191 ether_addr_copy(cmd.dst_mac, mac);
4d55a0a1
VK		 1192
1193 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason);
1194
3e9191fc
VK		 1195 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd),
1196 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000);
1197 /* failure to disconnect in reasonable time treated as FW error */
1198 if (rc) {
1199 wil_fw_error_recovery(wil);
1200 return rc;
1201 }
1202
1203 /* call event handler manually after processing wmi_call,
1204 * to avoid deadlock - disconnect event handler acquires wil->mutex
1205 * while it is already held here
1206 */
1207 reason_code = le16_to_cpu(reply.evt.protocol_reason_status);
1208
1209 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
1210 reply.evt.bssid, reason_code,
1211 reply.evt.disconnect_reason);
1212
1213 wil->sinfo_gen++;
1214 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true);
1215
1216 return 0;
4d55a0a1
VK		 1217}
1218
3277213f
VK		 1219int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)
1220{
1221 struct wmi_vring_ba_en_cmd cmd = {
1222 .ringid = ringid,
1223 .agg_max_wsize = size,
1224 .ba_timeout = cpu_to_le16(timeout),
cbcf5866 1225 .amsdu = 0,
3277213f
VK		 1226 };
1227
1228 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__,
1229 ringid, size, timeout);
1230
1231 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd));
1232}
1233
26a359d9 1234int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason)
3277213f
VK		 1235{
1236 struct wmi_vring_ba_dis_cmd cmd = {
1237 .ringid = ringid,
1238 .reason = cpu_to_le16(reason),
1239 };
1240
1241 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__,
1242 ringid, reason);
1243
1244 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd));
1245}
1246
26a359d9
VK		 1247int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason)
1248{
1249 struct wmi_rcp_delba_cmd cmd = {
1250 .cidxtid = cidxtid,
1251 .reason = cpu_to_le16(reason),
1252 };
1253
1254 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__,
1255 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason);
1256
1257 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd));
1258}
1259
3277213f
VK		 1260int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
1261 u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
1262{
1263 int rc;
1264 struct wmi_rcp_addba_resp_cmd cmd = {
1265 .cidxtid = mk_cidxtid(cid, tid),
1266 .dialog_token = token,
1267 .status_code = cpu_to_le16(status),
1268 /* bit 0: A-MSDU supported
1269 * bit 1: policy (should be 0 for us)
1270 * bits 2..5: TID
1271 * bits 6..15: buffer size
1272 */
1273 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
1274 (agg_wsize << 6)),
1275 .ba_timeout = cpu_to_le16(timeout),
1276 };
1277 struct {
1278 struct wil6210_mbox_hdr_wmi wmi;
1279 struct wmi_rcp_addba_resp_sent_event evt;
1280 } __packed reply;
1281
1282 wil_dbg_wmi(wil,
1283 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
1284 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-");
1285
1286 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd),
230d8442
VK		 1287 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply),
1288 100);
3277213f
VK		 1289 if (rc)
1290 return rc;
1291
1292 if (reply.evt.status) {
1293 wil_err(wil, "ADDBA response failed with status %d\n",
1294 le16_to_cpu(reply.evt.status));
1295 rc = -EINVAL;
1296 }
1297
1298 return rc;
1299}
1300
2be7d22f
VK		 1301void wmi_event_flush(struct wil6210_priv *wil)
1302{
1303 struct pending_wmi_event *evt, *t;
1304
7743882d 1305 wil_dbg_wmi(wil, "%s()\n", __func__);
2be7d22f
VK		 1306
1307 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1308 list_del(&evt->list);
1309 kfree(evt);
1310 }
1311}
1312
1313static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1314 void *d, int len)
1315{
1316 uint i;
1317
1318 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1319 if (wmi_evt_handlers[i].eventid == id) {
1320 wmi_evt_handlers[i].handler(wil, id, d, len);
1321 return true;
1322 }
1323 }
1324
1325 return false;
1326}
1327
1328static void wmi_event_handle(struct wil6210_priv *wil,
1329 struct wil6210_mbox_hdr *hdr)
1330{
1331 u16 len = le16_to_cpu(hdr->len);
1332
1333 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
1334 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
1335 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]);
1336 void *evt_data = (void *)(&wmi[1]);
1337 u16 id = le16_to_cpu(wmi->id);
028e1836
VK		 1338
1339 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1340 id, wil->reply_id);
2be7d22f
VK		 1341 /* check if someone waits for this event */
1342 if (wil->reply_id && wil->reply_id == id) {
1343 if (wil->reply_buf) {
1344 memcpy(wil->reply_buf, wmi,
1345 min(len, wil->reply_size));
1346 } else {
1347 wmi_evt_call_handler(wil, id, evt_data,
1348 len - sizeof(*wmi));
1349 }
7743882d 1350 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id);
59502647 1351 complete(&wil->wmi_call);
2be7d22f
VK		 1352 return;
1353 }
1354 /* unsolicited event */
1355 /* search for handler */
1356 if (!wmi_evt_call_handler(wil, id, evt_data,
1357 len - sizeof(*wmi))) {
a3ce5ccd 1358 wil_info(wil, "Unhandled event 0x%04x\n", id);
2be7d22f
VK		 1359 }
1360 } else {
1361 wil_err(wil, "Unknown event type\n");
1362 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1363 hdr, sizeof(*hdr) + len, true);
1364 }
1365}
1366
1367/*
1368 * Retrieve next WMI event from the pending list
1369 */
1370static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1371{
1372 ulong flags;
1373 struct list_head *ret = NULL;
1374
1375 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1376
1377 if (!list_empty(&wil->pending_wmi_ev)) {
1378 ret = wil->pending_wmi_ev.next;
1379 list_del(ret);
1380 }
1381
1382 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1383
1384 return ret;
1385}
1386
1387/*
1388 * Handler for the WMI events
1389 */
1390void wmi_event_worker(struct work_struct *work)
1391{
1392 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1393 wmi_event_worker);
1394 struct pending_wmi_event *evt;
1395 struct list_head *lh;
1396
028e1836 1397 wil_dbg_wmi(wil, "Start %s\n", __func__);
2be7d22f
VK		 1398 while ((lh = next_wmi_ev(wil)) != NULL) {
1399 evt = list_entry(lh, struct pending_wmi_event, list);
1400 wmi_event_handle(wil, &evt->event.hdr);
1401 kfree(evt);
1402 }
028e1836 1403 wil_dbg_wmi(wil, "Finished %s\n", __func__);
2be7d22f 1404}
Linux kernel - Deliverables
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