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Merge tag 'regmap-fix-v4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux/fpc-iii.git] / drivers / net / wireless / ath / wil6210 / wmi.c
blobfae4f1285d0873c2b8afa77d75c35904e7d8ed73
1 /*
2 * Copyright (c) 2012-2016 Qualcomm Atheros, Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #include <linux/moduleparam.h>
18 #include <linux/etherdevice.h>
19 #include <linux/if_arp.h>
20
21 #include "wil6210.h"
22 #include "txrx.h"
23 #include "wmi.h"
24 #include "trace.h"
25
26 static uint max_assoc_sta = WIL6210_MAX_CID;
27 module_param(max_assoc_sta, uint, S_IRUGO | S_IWUSR);
28 MODULE_PARM_DESC(max_assoc_sta, " Max number of stations associated to the AP");
29
30 int agg_wsize; /* = 0; */
31 module_param(agg_wsize, int, S_IRUGO | S_IWUSR);
32 MODULE_PARM_DESC(agg_wsize, " Window size for Tx Block Ack after connect;"
33 " 0 - use default; < 0 - don't auto-establish");
34
35 u8 led_id = WIL_LED_INVALID_ID;
36 module_param(led_id, byte, S_IRUGO);
37 MODULE_PARM_DESC(led_id,
38 " 60G device led enablement. Set the led ID (0-2) to enable");
39
40 /**
41 * WMI event receiving - theory of operations
42 *
43 * When firmware about to report WMI event, it fills memory area
44 * in the mailbox and raises misc. IRQ. Thread interrupt handler invoked for
45 * the misc IRQ, function @wmi_recv_cmd called by thread IRQ handler.
46 *
47 * @wmi_recv_cmd reads event, allocates memory chunk and attaches it to the
48 * event list @wil->pending_wmi_ev. Then, work queue @wil->wmi_wq wakes up
49 * and handles events within the @wmi_event_worker. Every event get detached
50 * from list, processed and deleted.
51 *
52 * Purpose for this mechanism is to release IRQ thread; otherwise,
53 * if WMI event handling involves another WMI command flow, this 2-nd flow
54 * won't be completed because of blocked IRQ thread.
55 */
56
57 /**
58 * Addressing - theory of operations
59 *
60 * There are several buses present on the WIL6210 card.
61 * Same memory areas are visible at different address on
62 * the different busses. There are 3 main bus masters:
63 * - MAC CPU (ucode)
64 * - User CPU (firmware)
65 * - AHB (host)
66 *
67 * On the PCI bus, there is one BAR (BAR0) of 2Mb size, exposing
68 * AHB addresses starting from 0x880000
69 *
70 * Internally, firmware uses addresses that allows faster access but
71 * are invisible from the host. To read from these addresses, alternative
72 * AHB address must be used.
73 *
74 * Memory mapping
75 * Linker address PCI/Host address
76 * 0x880000 .. 0xa80000 2Mb BAR0
77 * 0x800000 .. 0x807000 0x900000 .. 0x907000 28k DCCM
78 * 0x840000 .. 0x857000 0x908000 .. 0x91f000 92k PERIPH
79 */
80
81 /**
82 * @fw_mapping provides memory remapping table
83 *
84 * array size should be in sync with the declaration in the wil6210.h
85 */
86 const struct fw_map fw_mapping[] = {
87 {0x000000, 0x040000, 0x8c0000, "fw_code"}, /* FW code RAM 256k */
88 {0x800000, 0x808000, 0x900000, "fw_data"}, /* FW data RAM 32k */
89 {0x840000, 0x860000, 0x908000, "fw_peri"}, /* periph. data RAM 128k */
90 {0x880000, 0x88a000, 0x880000, "rgf"}, /* various RGF 40k */
91 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl"}, /* AGC table 4k */
92 {0x88b000, 0x88c000, 0x88b000, "rgf_ext"}, /* Pcie_ext_rgf 4k */
93 {0x88c000, 0x88c200, 0x88c000, "mac_rgf_ext"}, /* mac_ext_rgf 512b */
94 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */
95 /*
96 * 920000..930000 ucode code RAM
97 * 930000..932000 ucode data RAM
98 * 932000..949000 back-door debug data
99 */
100 };
101
102 struct blink_on_off_time led_blink_time[] = {
103 {WIL_LED_BLINK_ON_SLOW_MS, WIL_LED_BLINK_OFF_SLOW_MS},
104 {WIL_LED_BLINK_ON_MED_MS, WIL_LED_BLINK_OFF_MED_MS},
105 {WIL_LED_BLINK_ON_FAST_MS, WIL_LED_BLINK_OFF_FAST_MS},
106 };
107
108 u8 led_polarity = LED_POLARITY_LOW_ACTIVE;
109
110 /**
111 * return AHB address for given firmware/ucode internal (linker) address
112 * @x - internal address
113 * If address have no valid AHB mapping, return 0
114 */
115 static u32 wmi_addr_remap(u32 x)
116 {
117 uint i;
118
119 for (i = 0; i < ARRAY_SIZE(fw_mapping); i++) {
120 if ((x >= fw_mapping[i].from) && (x < fw_mapping[i].to))
121 return x + fw_mapping[i].host - fw_mapping[i].from;
122 }
123
124 return 0;
125 }
126
127 /**
128 * Check address validity for WMI buffer; remap if needed
129 * @ptr - internal (linker) fw/ucode address
130 *
131 * Valid buffer should be DWORD aligned
132 *
133 * return address for accessing buffer from the host;
134 * if buffer is not valid, return NULL.
135 */
136 void __iomem *wmi_buffer(struct wil6210_priv *wil, __le32 ptr_)
137 {
138 u32 off;
139 u32 ptr = le32_to_cpu(ptr_);
140
141 if (ptr % 4)
142 return NULL;
143
144 ptr = wmi_addr_remap(ptr);
145 if (ptr < WIL6210_FW_HOST_OFF)
146 return NULL;
147
148 off = HOSTADDR(ptr);
149 if (off > WIL6210_MEM_SIZE - 4)
150 return NULL;
151
152 return wil->csr + off;
153 }
154
155 /**
156 * Check address validity
157 */
158 void __iomem *wmi_addr(struct wil6210_priv *wil, u32 ptr)
159 {
160 u32 off;
161
162 if (ptr % 4)
163 return NULL;
164
165 if (ptr < WIL6210_FW_HOST_OFF)
166 return NULL;
167
168 off = HOSTADDR(ptr);
169 if (off > WIL6210_MEM_SIZE - 4)
170 return NULL;
171
172 return wil->csr + off;
173 }
174
175 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
176 struct wil6210_mbox_hdr *hdr)
177 {
178 void __iomem *src = wmi_buffer(wil, ptr);
179
180 if (!src)
181 return -EINVAL;
182
183 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
184
185 return 0;
186 }
187
188 static int __wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
189 {
190 struct {
191 struct wil6210_mbox_hdr hdr;
192 struct wmi_cmd_hdr wmi;
193 } __packed cmd = {
194 .hdr = {
195 .type = WIL_MBOX_HDR_TYPE_WMI,
196 .flags = 0,
197 .len = cpu_to_le16(sizeof(cmd.wmi) + len),
198 },
199 .wmi = {
200 .mid = 0,
201 .command_id = cpu_to_le16(cmdid),
202 },
203 };
204 struct wil6210_mbox_ring *r = &wil->mbox_ctl.tx;
205 struct wil6210_mbox_ring_desc d_head;
206 u32 next_head;
207 void __iomem *dst;
208 void __iomem *head = wmi_addr(wil, r->head);
209 uint retry;
210 int rc = 0;
211
212 if (sizeof(cmd) + len > r->entry_size) {
213 wil_err(wil, "WMI size too large: %d bytes, max is %d\n",
214 (int)(sizeof(cmd) + len), r->entry_size);
215 return -ERANGE;
216 }
217
218 might_sleep();
219
220 if (!test_bit(wil_status_fwready, wil->status)) {
221 wil_err(wil, "WMI: cannot send command while FW not ready\n");
222 return -EAGAIN;
223 }
224
225 if (!head) {
226 wil_err(wil, "WMI head is garbage: 0x%08x\n", r->head);
227 return -EINVAL;
228 }
229
230 wil_halp_vote(wil);
231
232 /* read Tx head till it is not busy */
233 for (retry = 5; retry > 0; retry--) {
234 wil_memcpy_fromio_32(&d_head, head, sizeof(d_head));
235 if (d_head.sync == 0)
236 break;
237 msleep(20);
238 }
239 if (d_head.sync != 0) {
240 wil_err(wil, "WMI head busy\n");
241 rc = -EBUSY;
242 goto out;
243 }
244 /* next head */
245 next_head = r->base + ((r->head - r->base + sizeof(d_head)) % r->size);
246 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
247 /* wait till FW finish with previous command */
248 for (retry = 5; retry > 0; retry--) {
249 if (!test_bit(wil_status_fwready, wil->status)) {
250 wil_err(wil, "WMI: cannot send command while FW not ready\n");
251 rc = -EAGAIN;
252 goto out;
253 }
254 r->tail = wil_r(wil, RGF_MBOX +
255 offsetof(struct wil6210_mbox_ctl, tx.tail));
256 if (next_head != r->tail)
257 break;
258 msleep(20);
259 }
260 if (next_head == r->tail) {
261 wil_err(wil, "WMI ring full\n");
262 rc = -EBUSY;
263 goto out;
264 }
265 dst = wmi_buffer(wil, d_head.addr);
266 if (!dst) {
267 wil_err(wil, "invalid WMI buffer: 0x%08x\n",
268 le32_to_cpu(d_head.addr));
269 rc = -EAGAIN;
270 goto out;
271 }
272 cmd.hdr.seq = cpu_to_le16(++wil->wmi_seq);
273 /* set command */
274 wil_dbg_wmi(wil, "WMI command 0x%04x [%d]\n", cmdid, len);
275 wil_hex_dump_wmi("Cmd ", DUMP_PREFIX_OFFSET, 16, 1, &cmd,
276 sizeof(cmd), true);
277 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
278 len, true);
279 wil_memcpy_toio_32(dst, &cmd, sizeof(cmd));
280 wil_memcpy_toio_32(dst + sizeof(cmd), buf, len);
281 /* mark entry as full */
282 wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1);
283 /* advance next ptr */
284 wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head),
285 r->head = next_head);
286
287 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
288
289 /* interrupt to FW */
290 wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS),
291 SW_INT_MBOX);
292
293 out:
294 wil_halp_unvote(wil);
295 return rc;
296 }
297
298 int wmi_send(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len)
299 {
300 int rc;
301
302 mutex_lock(&wil->wmi_mutex);
303 rc = __wmi_send(wil, cmdid, buf, len);
304 mutex_unlock(&wil->wmi_mutex);
305
306 return rc;
307 }
308
309 /*=== Event handlers ===*/
310 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
311 {
312 struct wireless_dev *wdev = wil->wdev;
313 struct wmi_ready_event *evt = d;
314
315 wil->n_mids = evt->numof_additional_mids;
316
317 wil_info(wil, "FW ver. %s(SW %d); MAC %pM; %d MID's\n",
318 wil->fw_version, le32_to_cpu(evt->sw_version),
319 evt->mac, wil->n_mids);
320 /* ignore MAC address, we already have it from the boot loader */
321 strlcpy(wdev->wiphy->fw_version, wil->fw_version,
322 sizeof(wdev->wiphy->fw_version));
323
324 wil_set_recovery_state(wil, fw_recovery_idle);
325 set_bit(wil_status_fwready, wil->status);
326 /* let the reset sequence continue */
327 complete(&wil->wmi_ready);
328 }
329
330 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
331 {
332 struct wmi_rx_mgmt_packet_event *data = d;
333 struct wiphy *wiphy = wil_to_wiphy(wil);
334 struct ieee80211_mgmt *rx_mgmt_frame =
335 (struct ieee80211_mgmt *)data->payload;
336 int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload);
337 int ch_no;
338 u32 freq;
339 struct ieee80211_channel *channel;
340 s32 signal;
341 __le16 fc;
342 u32 d_len;
343 u16 d_status;
344
345 if (flen < 0) {
346 wil_err(wil, "MGMT Rx: short event, len %d\n", len);
347 return;
348 }
349
350 d_len = le32_to_cpu(data->info.len);
351 if (d_len != flen) {
352 wil_err(wil,
353 "MGMT Rx: length mismatch, d_len %d should be %d\n",
354 d_len, flen);
355 return;
356 }
357
358 ch_no = data->info.channel + 1;
359 freq = ieee80211_channel_to_frequency(ch_no, NL80211_BAND_60GHZ);
360 channel = ieee80211_get_channel(wiphy, freq);
361 signal = data->info.sqi;
362 d_status = le16_to_cpu(data->info.status);
363 fc = rx_mgmt_frame->frame_control;
364
365 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n",
366 data->info.channel, data->info.mcs, data->info.snr,
367 data->info.sqi);
368 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
369 le16_to_cpu(fc));
370 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
371 data->info.qid, data->info.mid, data->info.cid);
372 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame,
373 d_len, true);
374
375 if (!channel) {
376 wil_err(wil, "Frame on unsupported channel\n");
377 return;
378 }
379
380 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
381 struct cfg80211_bss *bss;
382 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
383 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
384 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
385 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
386 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
387 u.beacon.variable);
388 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
389 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
390 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
391 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
392 ie_len, true);
393
394 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
395
396 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
397 d_len, signal, GFP_KERNEL);
398 if (bss) {
399 wil_dbg_wmi(wil, "Added BSS %pM\n",
400 rx_mgmt_frame->bssid);
401 cfg80211_put_bss(wiphy, bss);
402 } else {
403 wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
404 }
405 } else {
406 mutex_lock(&wil->p2p_wdev_mutex);
407 cfg80211_rx_mgmt(wil->radio_wdev, freq, signal,
408 (void *)rx_mgmt_frame, d_len, 0);
409 mutex_unlock(&wil->p2p_wdev_mutex);
410 }
411 }
412
413 static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
414 {
415 struct wmi_tx_mgmt_packet_event *data = d;
416 struct ieee80211_mgmt *mgmt_frame =
417 (struct ieee80211_mgmt *)data->payload;
418 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload);
419
420 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame,
421 flen, true);
422 }
423
424 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
425 void *d, int len)
426 {
427 mutex_lock(&wil->p2p_wdev_mutex);
428 if (wil->scan_request) {
429 struct wmi_scan_complete_event *data = d;
430 struct cfg80211_scan_info info = {
431 .aborted = (data->status != WMI_SCAN_SUCCESS),
432 };
433
434 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
435 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
436 wil->scan_request, info.aborted);
437
438 del_timer_sync(&wil->scan_timer);
439 cfg80211_scan_done(wil->scan_request, &info);
440 wil->radio_wdev = wil->wdev;
441 wil->scan_request = NULL;
442 } else {
443 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
444 }
445 mutex_unlock(&wil->p2p_wdev_mutex);
446 }
447
448 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
449 {
450 struct net_device *ndev = wil_to_ndev(wil);
451 struct wireless_dev *wdev = wil->wdev;
452 struct wmi_connect_event *evt = d;
453 int ch; /* channel number */
454 struct station_info sinfo;
455 u8 *assoc_req_ie, *assoc_resp_ie;
456 size_t assoc_req_ielen, assoc_resp_ielen;
457 /* capinfo(u16) + listen_interval(u16) + IEs */
458 const size_t assoc_req_ie_offset = sizeof(u16) * 2;
459 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
460 const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
461 int rc;
462
463 if (len < sizeof(*evt)) {
464 wil_err(wil, "Connect event too short : %d bytes\n", len);
465 return;
466 }
467 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
468 evt->assoc_resp_len) {
469 wil_err(wil,
470 "Connect event corrupted : %d != %d + %d + %d + %d\n",
471 len, (int)sizeof(*evt), evt->beacon_ie_len,
472 evt->assoc_req_len, evt->assoc_resp_len);
473 return;
474 }
475 if (evt->cid >= WIL6210_MAX_CID) {
476 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
477 return;
478 }
479
480 ch = evt->channel + 1;
481 wil_info(wil, "Connect %pM channel [%d] cid %d\n",
482 evt->bssid, ch, evt->cid);
483 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
484 evt->assoc_info, len - sizeof(*evt), true);
485
486 /* figure out IE's */
487 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
488 assoc_req_ie_offset];
489 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
490 if (evt->assoc_req_len <= assoc_req_ie_offset) {
491 assoc_req_ie = NULL;
492 assoc_req_ielen = 0;
493 }
494
495 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
496 evt->assoc_req_len +
497 assoc_resp_ie_offset];
498 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
499 if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
500 assoc_resp_ie = NULL;
501 assoc_resp_ielen = 0;
502 }
503
504 mutex_lock(&wil->mutex);
505 if (test_bit(wil_status_resetting, wil->status) ||
506 !test_bit(wil_status_fwready, wil->status)) {
507 wil_err(wil, "status_resetting, cancel connect event, CID %d\n",
508 evt->cid);
509 mutex_unlock(&wil->mutex);
510 /* no need for cleanup, wil_reset will do that */
511 return;
512 }
513
514 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
515 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
516 if (!test_bit(wil_status_fwconnecting, wil->status)) {
517 wil_err(wil, "Not in connecting state\n");
518 mutex_unlock(&wil->mutex);
519 return;
520 }
521 del_timer_sync(&wil->connect_timer);
522 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
523 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
524 if (wil->sta[evt->cid].status != wil_sta_unused) {
525 wil_err(wil, "%s: AP: Invalid status %d for CID %d\n",
526 __func__, wil->sta[evt->cid].status, evt->cid);
527 mutex_unlock(&wil->mutex);
528 return;
529 }
530 }
531
532 /* FIXME FW can transmit only ucast frames to peer */
533 /* FIXME real ring_id instead of hard coded 0 */
534 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid);
535 wil->sta[evt->cid].status = wil_sta_conn_pending;
536
537 rc = wil_tx_init(wil, evt->cid);
538 if (rc) {
539 wil_err(wil, "%s: config tx vring failed for CID %d, rc (%d)\n",
540 __func__, evt->cid, rc);
541 wmi_disconnect_sta(wil, wil->sta[evt->cid].addr,
542 WLAN_REASON_UNSPECIFIED, false);
543 } else {
544 wil_info(wil, "%s: successful connection to CID %d\n",
545 __func__, evt->cid);
546 }
547
548 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
549 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
550 if (rc) {
551 netif_tx_stop_all_queues(ndev);
552 netif_carrier_off(ndev);
553 wil_err(wil,
554 "%s: cfg80211_connect_result with failure\n",
555 __func__);
556 cfg80211_connect_result(ndev, evt->bssid, NULL, 0,
557 NULL, 0,
558 WLAN_STATUS_UNSPECIFIED_FAILURE,
559 GFP_KERNEL);
560 goto out;
561 } else {
562 cfg80211_connect_result(ndev, evt->bssid,
563 assoc_req_ie, assoc_req_ielen,
564 assoc_resp_ie, assoc_resp_ielen,
565 WLAN_STATUS_SUCCESS,
566 GFP_KERNEL);
567 }
568 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
569 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
570 if (rc)
571 goto out;
572
573 memset(&sinfo, 0, sizeof(sinfo));
574
575 sinfo.generation = wil->sinfo_gen++;
576
577 if (assoc_req_ie) {
578 sinfo.assoc_req_ies = assoc_req_ie;
579 sinfo.assoc_req_ies_len = assoc_req_ielen;
580 }
581
582 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
583 } else {
584 wil_err(wil, "%s: unhandled iftype %d for CID %d\n",
585 __func__, wdev->iftype, evt->cid);
586 goto out;
587 }
588
589 wil->sta[evt->cid].status = wil_sta_connected;
590 set_bit(wil_status_fwconnected, wil->status);
591 netif_tx_wake_all_queues(ndev);
592
593 out:
594 if (rc)
595 wil->sta[evt->cid].status = wil_sta_unused;
596 clear_bit(wil_status_fwconnecting, wil->status);
597 mutex_unlock(&wil->mutex);
598 }
599
600 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
601 void *d, int len)
602 {
603 struct wmi_disconnect_event *evt = d;
604 u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
605
606 wil_info(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
607 evt->bssid, reason_code, evt->disconnect_reason);
608
609 wil->sinfo_gen++;
610
611 mutex_lock(&wil->mutex);
612 wil6210_disconnect(wil, evt->bssid, reason_code, true);
613 mutex_unlock(&wil->mutex);
614 }
615
616 /*
617 * Firmware reports EAPOL frame using WME event.
618 * Reconstruct Ethernet frame and deliver it via normal Rx
619 */
620 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
621 void *d, int len)
622 {
623 struct net_device *ndev = wil_to_ndev(wil);
624 struct wmi_eapol_rx_event *evt = d;
625 u16 eapol_len = le16_to_cpu(evt->eapol_len);
626 int sz = eapol_len + ETH_HLEN;
627 struct sk_buff *skb;
628 struct ethhdr *eth;
629 int cid;
630 struct wil_net_stats *stats = NULL;
631
632 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
633 evt->src_mac);
634
635 cid = wil_find_cid(wil, evt->src_mac);
636 if (cid >= 0)
637 stats = &wil->sta[cid].stats;
638
639 if (eapol_len > 196) { /* TODO: revisit size limit */
640 wil_err(wil, "EAPOL too large\n");
641 return;
642 }
643
644 skb = alloc_skb(sz, GFP_KERNEL);
645 if (!skb) {
646 wil_err(wil, "Failed to allocate skb\n");
647 return;
648 }
649
650 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
651 ether_addr_copy(eth->h_dest, ndev->dev_addr);
652 ether_addr_copy(eth->h_source, evt->src_mac);
653 eth->h_proto = cpu_to_be16(ETH_P_PAE);
654 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
655 skb->protocol = eth_type_trans(skb, ndev);
656 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
657 ndev->stats.rx_packets++;
658 ndev->stats.rx_bytes += sz;
659 if (stats) {
660 stats->rx_packets++;
661 stats->rx_bytes += sz;
662 }
663 } else {
664 ndev->stats.rx_dropped++;
665 if (stats)
666 stats->rx_dropped++;
667 }
668 }
669
670 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len)
671 {
672 struct wmi_vring_en_event *evt = d;
673 u8 vri = evt->vring_index;
674
675 wil_dbg_wmi(wil, "Enable vring %d\n", vri);
676
677 if (vri >= ARRAY_SIZE(wil->vring_tx)) {
678 wil_err(wil, "Enable for invalid vring %d\n", vri);
679 return;
680 }
681 wil->vring_tx_data[vri].dot1x_open = true;
682 if (vri == wil->bcast_vring) /* no BA for bcast */
683 return;
684 if (agg_wsize >= 0)
685 wil_addba_tx_request(wil, vri, agg_wsize);
686 }
687
688 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
689 int len)
690 {
691 struct wmi_ba_status_event *evt = d;
692 struct vring_tx_data *txdata;
693
694 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
695 evt->ringid,
696 evt->status == WMI_BA_AGREED ? "OK" : "N/A",
697 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
698 evt->amsdu ? "+" : "-");
699
700 if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
701 wil_err(wil, "invalid ring id %d\n", evt->ringid);
702 return;
703 }
704
705 if (evt->status != WMI_BA_AGREED) {
706 evt->ba_timeout = 0;
707 evt->agg_wsize = 0;
708 evt->amsdu = 0;
709 }
710
711 txdata = &wil->vring_tx_data[evt->ringid];
712
713 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
714 txdata->agg_wsize = evt->agg_wsize;
715 txdata->agg_amsdu = evt->amsdu;
716 txdata->addba_in_progress = false;
717 }
718
719 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
720 int len)
721 {
722 struct wmi_rcp_addba_req_event *evt = d;
723
724 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
725 evt->ba_param_set, evt->ba_timeout,
726 evt->ba_seq_ctrl);
727 }
728
729 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
730 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
731 {
732 struct wmi_delba_event *evt = d;
733 u8 cid, tid;
734 u16 reason = __le16_to_cpu(evt->reason);
735 struct wil_sta_info *sta;
736 struct wil_tid_ampdu_rx *r;
737
738 might_sleep();
739 parse_cidxtid(evt->cidxtid, &cid, &tid);
740 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
741 cid, tid,
742 evt->from_initiator ? "originator" : "recipient",
743 reason);
744 if (!evt->from_initiator) {
745 int i;
746 /* find Tx vring it belongs to */
747 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
748 if ((wil->vring2cid_tid[i][0] == cid) &&
749 (wil->vring2cid_tid[i][1] == tid)) {
750 struct vring_tx_data *txdata =
751 &wil->vring_tx_data[i];
752
753 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
754 txdata->agg_timeout = 0;
755 txdata->agg_wsize = 0;
756 txdata->addba_in_progress = false;
757
758 break; /* max. 1 matching ring */
759 }
760 }
761 if (i >= ARRAY_SIZE(wil->vring2cid_tid))
762 wil_err(wil, "DELBA: unable to find Tx vring\n");
763 return;
764 }
765
766 sta = &wil->sta[cid];
767
768 spin_lock_bh(&sta->tid_rx_lock);
769
770 r = sta->tid_rx[tid];
771 sta->tid_rx[tid] = NULL;
772 wil_tid_ampdu_rx_free(wil, r);
773
774 spin_unlock_bh(&sta->tid_rx_lock);
775 }
776
777 /**
778 * Some events are ignored for purpose; and need not be interpreted as
779 * "unhandled events"
780 */
781 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len)
782 {
783 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len);
784 }
785
786 static const struct {
787 int eventid;
788 void (*handler)(struct wil6210_priv *wil, int eventid,
789 void *data, int data_len);
790 } wmi_evt_handlers[] = {
791 {WMI_READY_EVENTID, wmi_evt_ready},
792 {WMI_FW_READY_EVENTID, wmi_evt_ignore},
793 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
794 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt},
795 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
796 {WMI_CONNECT_EVENTID, wmi_evt_connect},
797 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
798 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
799 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
800 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req},
801 {WMI_DELBA_EVENTID, wmi_evt_delba},
802 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en},
803 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore},
804 };
805
806 /*
807 * Run in IRQ context
808 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
809 * that will be eventually handled by the @wmi_event_worker in the thread
810 * context of thread "wil6210_wmi"
811 */
812 void wmi_recv_cmd(struct wil6210_priv *wil)
813 {
814 struct wil6210_mbox_ring_desc d_tail;
815 struct wil6210_mbox_hdr hdr;
816 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
817 struct pending_wmi_event *evt;
818 u8 *cmd;
819 void __iomem *src;
820 ulong flags;
821 unsigned n;
822 unsigned int num_immed_reply = 0;
823
824 if (!test_bit(wil_status_mbox_ready, wil->status)) {
825 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
826 return;
827 }
828
829 for (n = 0;; n++) {
830 u16 len;
831 bool q;
832 bool immed_reply = false;
833
834 r->head = wil_r(wil, RGF_MBOX +
835 offsetof(struct wil6210_mbox_ctl, rx.head));
836 if (r->tail == r->head)
837 break;
838
839 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
840 r->head, r->tail);
841 /* read cmd descriptor from tail */
842 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
843 sizeof(struct wil6210_mbox_ring_desc));
844 if (d_tail.sync == 0) {
845 wil_err(wil, "Mbox evt not owned by FW?\n");
846 break;
847 }
848
849 /* read cmd header from descriptor */
850 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
851 wil_err(wil, "Mbox evt at 0x%08x?\n",
852 le32_to_cpu(d_tail.addr));
853 break;
854 }
855 len = le16_to_cpu(hdr.len);
856 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
857 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
858 hdr.flags);
859
860 /* read cmd buffer from descriptor */
861 src = wmi_buffer(wil, d_tail.addr) +
862 sizeof(struct wil6210_mbox_hdr);
863 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
864 event.wmi) + len, 4),
865 GFP_KERNEL);
866 if (!evt)
867 break;
868
869 evt->event.hdr = hdr;
870 cmd = (void *)&evt->event.wmi;
871 wil_memcpy_fromio_32(cmd, src, len);
872 /* mark entry as empty */
873 wil_w(wil, r->tail +
874 offsetof(struct wil6210_mbox_ring_desc, sync), 0);
875 /* indicate */
876 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
877 (len >= sizeof(struct wmi_cmd_hdr))) {
878 struct wmi_cmd_hdr *wmi = &evt->event.wmi;
879 u16 id = le16_to_cpu(wmi->command_id);
880 u32 tstamp = le32_to_cpu(wmi->fw_timestamp);
881 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
882 if (wil->reply_id && wil->reply_id == id) {
883 if (wil->reply_buf) {
884 memcpy(wil->reply_buf, wmi,
885 min(len, wil->reply_size));
886 immed_reply = true;
887 }
888 }
889 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
890
891 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
892 id, wmi->mid, tstamp);
893 trace_wil6210_wmi_event(wmi, &wmi[1],
894 len - sizeof(*wmi));
895 }
896 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
897 &evt->event.hdr, sizeof(hdr) + len, true);
898
899 /* advance tail */
900 r->tail = r->base + ((r->tail - r->base +
901 sizeof(struct wil6210_mbox_ring_desc)) % r->size);
902 wil_w(wil, RGF_MBOX +
903 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail);
904
905 if (immed_reply) {
906 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n",
907 __func__, wil->reply_id);
908 kfree(evt);
909 num_immed_reply++;
910 complete(&wil->wmi_call);
911 } else {
912 /* add to the pending list */
913 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
914 list_add_tail(&evt->list, &wil->pending_wmi_ev);
915 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
916 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
917 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
918 }
919 }
920 /* normally, 1 event per IRQ should be processed */
921 wil_dbg_wmi(wil, "%s -> %d events queued, %d completed\n", __func__,
922 n - num_immed_reply, num_immed_reply);
923 }
924
925 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
926 u16 reply_id, void *reply, u8 reply_size, int to_msec)
927 {
928 int rc;
929 unsigned long remain;
930
931 mutex_lock(&wil->wmi_mutex);
932
933 spin_lock(&wil->wmi_ev_lock);
934 wil->reply_id = reply_id;
935 wil->reply_buf = reply;
936 wil->reply_size = reply_size;
937 spin_unlock(&wil->wmi_ev_lock);
938
939 rc = __wmi_send(wil, cmdid, buf, len);
940 if (rc)
941 goto out;
942
943 remain = wait_for_completion_timeout(&wil->wmi_call,
944 msecs_to_jiffies(to_msec));
945 if (0 == remain) {
946 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
947 cmdid, reply_id, to_msec);
948 rc = -ETIME;
949 } else {
950 wil_dbg_wmi(wil,
951 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
952 cmdid, reply_id,
953 to_msec - jiffies_to_msecs(remain));
954 }
955
956 out:
957 spin_lock(&wil->wmi_ev_lock);
958 wil->reply_id = 0;
959 wil->reply_buf = NULL;
960 wil->reply_size = 0;
961 spin_unlock(&wil->wmi_ev_lock);
962
963 mutex_unlock(&wil->wmi_mutex);
964
965 return rc;
966 }
967
968 int wmi_echo(struct wil6210_priv *wil)
969 {
970 struct wmi_echo_cmd cmd = {
971 .value = cpu_to_le32(0x12345678),
972 };
973
974 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
975 WMI_ECHO_RSP_EVENTID, NULL, 0, 50);
976 }
977
978 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
979 {
980 struct wmi_set_mac_address_cmd cmd;
981
982 ether_addr_copy(cmd.mac, addr);
983
984 wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
985
986 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
987 }
988
989 int wmi_led_cfg(struct wil6210_priv *wil, bool enable)
990 {
991 int rc = 0;
992 struct wmi_led_cfg_cmd cmd = {
993 .led_mode = enable,
994 .id = led_id,
995 .slow_blink_cfg.blink_on =
996 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].on_ms),
997 .slow_blink_cfg.blink_off =
998 cpu_to_le32(led_blink_time[WIL_LED_TIME_SLOW].off_ms),
999 .medium_blink_cfg.blink_on =
1000 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].on_ms),
1001 .medium_blink_cfg.blink_off =
1002 cpu_to_le32(led_blink_time[WIL_LED_TIME_MED].off_ms),
1003 .fast_blink_cfg.blink_on =
1004 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].on_ms),
1005 .fast_blink_cfg.blink_off =
1006 cpu_to_le32(led_blink_time[WIL_LED_TIME_FAST].off_ms),
1007 .led_polarity = led_polarity,
1008 };
1009 struct {
1010 struct wmi_cmd_hdr wmi;
1011 struct wmi_led_cfg_done_event evt;
1012 } __packed reply;
1013
1014 if (led_id == WIL_LED_INVALID_ID)
1015 goto out;
1016
1017 if (led_id > WIL_LED_MAX_ID) {
1018 wil_err(wil, "Invalid led id %d\n", led_id);
1019 rc = -EINVAL;
1020 goto out;
1021 }
1022
1023 wil_dbg_wmi(wil,
1024 "%s led %d\n",
1025 enable ? "enabling" : "disabling", led_id);
1026
1027 rc = wmi_call(wil, WMI_LED_CFG_CMDID, &cmd, sizeof(cmd),
1028 WMI_LED_CFG_DONE_EVENTID, &reply, sizeof(reply),
1029 100);
1030 if (rc)
1031 goto out;
1032
1033 if (reply.evt.status) {
1034 wil_err(wil, "led %d cfg failed with status %d\n",
1035 led_id, le32_to_cpu(reply.evt.status));
1036 rc = -EINVAL;
1037 }
1038
1039 out:
1040 return rc;
1041 }
1042
1043 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype,
1044 u8 chan, u8 hidden_ssid, u8 is_go)
1045 {
1046 int rc;
1047
1048 struct wmi_pcp_start_cmd cmd = {
1049 .bcon_interval = cpu_to_le16(bi),
1050 .network_type = wmi_nettype,
1051 .disable_sec_offload = 1,
1052 .channel = chan - 1,
1053 .pcp_max_assoc_sta = max_assoc_sta,
1054 .hidden_ssid = hidden_ssid,
1055 .is_go = is_go,
1056 };
1057 struct {
1058 struct wmi_cmd_hdr wmi;
1059 struct wmi_pcp_started_event evt;
1060 } __packed reply;
1061
1062 if (!wil->privacy)
1063 cmd.disable_sec = 1;
1064
1065 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
1066 (cmd.pcp_max_assoc_sta <= 0)) {
1067 wil_info(wil,
1068 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
1069 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
1070 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
1071 }
1072
1073 /*
1074 * Processing time may be huge, in case of secure AP it takes about
1075 * 3500ms for FW to start AP
1076 */
1077 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
1078 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
1079 if (rc)
1080 return rc;
1081
1082 if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
1083 rc = -EINVAL;
1084
1085 if (wmi_nettype != WMI_NETTYPE_P2P)
1086 /* Don't fail due to error in the led configuration */
1087 wmi_led_cfg(wil, true);
1088
1089 return rc;
1090 }
1091
1092 int wmi_pcp_stop(struct wil6210_priv *wil)
1093 {
1094 int rc;
1095
1096 rc = wmi_led_cfg(wil, false);
1097 if (rc)
1098 return rc;
1099
1100 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
1101 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
1102 }
1103
1104 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
1105 {
1106 struct wmi_set_ssid_cmd cmd = {
1107 .ssid_len = cpu_to_le32(ssid_len),
1108 };
1109
1110 if (ssid_len > sizeof(cmd.ssid))
1111 return -EINVAL;
1112
1113 memcpy(cmd.ssid, ssid, ssid_len);
1114
1115 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
1116 }
1117
1118 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
1119 {
1120 int rc;
1121 struct {
1122 struct wmi_cmd_hdr wmi;
1123 struct wmi_set_ssid_cmd cmd;
1124 } __packed reply;
1125 int len; /* reply.cmd.ssid_len in CPU order */
1126
1127 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
1128 &reply, sizeof(reply), 20);
1129 if (rc)
1130 return rc;
1131
1132 len = le32_to_cpu(reply.cmd.ssid_len);
1133 if (len > sizeof(reply.cmd.ssid))
1134 return -EINVAL;
1135
1136 *ssid_len = len;
1137 memcpy(ssid, reply.cmd.ssid, len);
1138
1139 return 0;
1140 }
1141
1142 int wmi_set_channel(struct wil6210_priv *wil, int channel)
1143 {
1144 struct wmi_set_pcp_channel_cmd cmd = {
1145 .channel = channel - 1,
1146 };
1147
1148 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
1149 }
1150
1151 int wmi_get_channel(struct wil6210_priv *wil, int *channel)
1152 {
1153 int rc;
1154 struct {
1155 struct wmi_cmd_hdr wmi;
1156 struct wmi_set_pcp_channel_cmd cmd;
1157 } __packed reply;
1158
1159 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
1160 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
1161 if (rc)
1162 return rc;
1163
1164 if (reply.cmd.channel > 3)
1165 return -EINVAL;
1166
1167 *channel = reply.cmd.channel + 1;
1168
1169 return 0;
1170 }
1171
1172 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel, int bi)
1173 {
1174 int rc;
1175 struct wmi_p2p_cfg_cmd cmd = {
1176 .discovery_mode = WMI_DISCOVERY_MODE_PEER2PEER,
1177 .bcon_interval = cpu_to_le16(bi),
1178 .channel = channel - 1,
1179 };
1180 struct {
1181 struct wmi_cmd_hdr wmi;
1182 struct wmi_p2p_cfg_done_event evt;
1183 } __packed reply;
1184
1185 wil_dbg_wmi(wil, "sending WMI_P2P_CFG_CMDID\n");
1186
1187 rc = wmi_call(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd),
1188 WMI_P2P_CFG_DONE_EVENTID, &reply, sizeof(reply), 300);
1189 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1190 wil_err(wil, "P2P_CFG failed. status %d\n", reply.evt.status);
1191 rc = -EINVAL;
1192 }
1193
1194 return rc;
1195 }
1196
1197 int wmi_start_listen(struct wil6210_priv *wil)
1198 {
1199 int rc;
1200 struct {
1201 struct wmi_cmd_hdr wmi;
1202 struct wmi_listen_started_event evt;
1203 } __packed reply;
1204
1205 wil_dbg_wmi(wil, "sending WMI_START_LISTEN_CMDID\n");
1206
1207 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1208 WMI_LISTEN_STARTED_EVENTID, &reply, sizeof(reply), 300);
1209 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1210 wil_err(wil, "device failed to start listen. status %d\n",
1211 reply.evt.status);
1212 rc = -EINVAL;
1213 }
1214
1215 return rc;
1216 }
1217
1218 int wmi_start_search(struct wil6210_priv *wil)
1219 {
1220 int rc;
1221 struct {
1222 struct wmi_cmd_hdr wmi;
1223 struct wmi_search_started_event evt;
1224 } __packed reply;
1225
1226 wil_dbg_wmi(wil, "sending WMI_START_SEARCH_CMDID\n");
1227
1228 rc = wmi_call(wil, WMI_START_SEARCH_CMDID, NULL, 0,
1229 WMI_SEARCH_STARTED_EVENTID, &reply, sizeof(reply), 300);
1230 if (!rc && reply.evt.status != WMI_FW_STATUS_SUCCESS) {
1231 wil_err(wil, "device failed to start search. status %d\n",
1232 reply.evt.status);
1233 rc = -EINVAL;
1234 }
1235
1236 return rc;
1237 }
1238
1239 int wmi_stop_discovery(struct wil6210_priv *wil)
1240 {
1241 int rc;
1242
1243 wil_dbg_wmi(wil, "sending WMI_DISCOVERY_STOP_CMDID\n");
1244
1245 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1246 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 100);
1247
1248 if (rc)
1249 wil_err(wil, "Failed to stop discovery\n");
1250
1251 return rc;
1252 }
1253
1254 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
1255 const void *mac_addr, int key_usage)
1256 {
1257 struct wmi_delete_cipher_key_cmd cmd = {
1258 .key_index = key_index,
1259 };
1260
1261 if (mac_addr)
1262 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1263
1264 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1265 }
1266
1267 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
1268 const void *mac_addr, int key_len, const void *key,
1269 int key_usage)
1270 {
1271 struct wmi_add_cipher_key_cmd cmd = {
1272 .key_index = key_index,
1273 .key_usage = key_usage,
1274 .key_len = key_len,
1275 };
1276
1277 if (!key || (key_len > sizeof(cmd.key)))
1278 return -EINVAL;
1279
1280 memcpy(cmd.key, key, key_len);
1281 if (mac_addr)
1282 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1283
1284 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1285 }
1286
1287 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
1288 {
1289 static const char *const names[] = {
1290 [WMI_FRAME_BEACON] = "BEACON",
1291 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ",
1292 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP",
1293 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ",
1294 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP",
1295 };
1296 int rc;
1297 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
1298 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
1299
1300 if (!cmd) {
1301 rc = -ENOMEM;
1302 goto out;
1303 }
1304 if (!ie)
1305 ie_len = 0;
1306
1307 cmd->mgmt_frm_type = type;
1308 /* BUG: FW API define ieLen as u8. Will fix FW */
1309 cmd->ie_len = cpu_to_le16(ie_len);
1310 memcpy(cmd->ie_info, ie, ie_len);
1311 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
1312 kfree(cmd);
1313 out:
1314 if (rc) {
1315 const char *name = type < ARRAY_SIZE(names) ?
1316 names[type] : "??";
1317 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc);
1318 }
1319
1320 return rc;
1321 }
1322
1323 /**
1324 * wmi_rxon - turn radio on/off
1325 * @on: turn on if true, off otherwise
1326 *
1327 * Only switch radio. Channel should be set separately.
1328 * No timeout for rxon - radio turned on forever unless some other call
1329 * turns it off
1330 */
1331 int wmi_rxon(struct wil6210_priv *wil, bool on)
1332 {
1333 int rc;
1334 struct {
1335 struct wmi_cmd_hdr wmi;
1336 struct wmi_listen_started_event evt;
1337 } __packed reply;
1338
1339 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
1340
1341 if (on) {
1342 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1343 WMI_LISTEN_STARTED_EVENTID,
1344 &reply, sizeof(reply), 100);
1345 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1346 rc = -EINVAL;
1347 } else {
1348 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1349 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1350 }
1351
1352 return rc;
1353 }
1354
1355 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1356 {
1357 struct wireless_dev *wdev = wil->wdev;
1358 struct net_device *ndev = wil_to_ndev(wil);
1359 struct wmi_cfg_rx_chain_cmd cmd = {
1360 .action = WMI_RX_CHAIN_ADD,
1361 .rx_sw_ring = {
1362 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)),
1363 .ring_mem_base = cpu_to_le64(vring->pa),
1364 .ring_size = cpu_to_le16(vring->size),
1365 },
1366 .mid = 0, /* TODO - what is it? */
1367 .decap_trans_type = WMI_DECAP_TYPE_802_3,
1368 .reorder_type = WMI_RX_SW_REORDER,
1369 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh),
1370 };
1371 struct {
1372 struct wmi_cmd_hdr wmi;
1373 struct wmi_cfg_rx_chain_done_event evt;
1374 } __packed evt;
1375 int rc;
1376
1377 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1378 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1379
1380 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1381 if (ch)
1382 cmd.sniffer_cfg.channel = ch->hw_value - 1;
1383 cmd.sniffer_cfg.phy_info_mode =
1384 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1385 cmd.sniffer_cfg.phy_support =
1386 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
1387 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS);
1388 } else {
1389 /* Initialize offload (in non-sniffer mode).
1390 * Linux IP stack always calculates IP checksum
1391 * HW always calculate TCP/UDP checksum
1392 */
1393 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
1394 }
1395
1396 if (rx_align_2)
1397 cmd.l2_802_3_offload_ctrl |=
1398 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK;
1399
1400 /* typical time for secure PCP is 840ms */
1401 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1402 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1403 if (rc)
1404 return rc;
1405
1406 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1407
1408 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
1409 le32_to_cpu(evt.evt.status), vring->hwtail);
1410
1411 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1412 rc = -EINVAL;
1413
1414 return rc;
1415 }
1416
1417 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
1418 {
1419 int rc;
1420 struct wmi_temp_sense_cmd cmd = {
1421 .measure_baseband_en = cpu_to_le32(!!t_bb),
1422 .measure_rf_en = cpu_to_le32(!!t_rf),
1423 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW),
1424 };
1425 struct {
1426 struct wmi_cmd_hdr wmi;
1427 struct wmi_temp_sense_done_event evt;
1428 } __packed reply;
1429
1430 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1431 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1432 if (rc)
1433 return rc;
1434
1435 if (t_bb)
1436 *t_bb = le32_to_cpu(reply.evt.baseband_t1000);
1437 if (t_rf)
1438 *t_rf = le32_to_cpu(reply.evt.rf_t1000);
1439
1440 return 0;
1441 }
1442
1443 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason,
1444 bool full_disconnect)
1445 {
1446 int rc;
1447 u16 reason_code;
1448 struct wmi_disconnect_sta_cmd cmd = {
1449 .disconnect_reason = cpu_to_le16(reason),
1450 };
1451 struct {
1452 struct wmi_cmd_hdr wmi;
1453 struct wmi_disconnect_event evt;
1454 } __packed reply;
1455
1456 ether_addr_copy(cmd.dst_mac, mac);
1457
1458 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason);
1459
1460 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd),
1461 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000);
1462 /* failure to disconnect in reasonable time treated as FW error */
1463 if (rc) {
1464 wil_fw_error_recovery(wil);
1465 return rc;
1466 }
1467
1468 if (full_disconnect) {
1469 /* call event handler manually after processing wmi_call,
1470 * to avoid deadlock - disconnect event handler acquires
1471 * wil->mutex while it is already held here
1472 */
1473 reason_code = le16_to_cpu(reply.evt.protocol_reason_status);
1474
1475 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
1476 reply.evt.bssid, reason_code,
1477 reply.evt.disconnect_reason);
1478
1479 wil->sinfo_gen++;
1480 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true);
1481 }
1482 return 0;
1483 }
1484
1485 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)
1486 {
1487 struct wmi_vring_ba_en_cmd cmd = {
1488 .ringid = ringid,
1489 .agg_max_wsize = size,
1490 .ba_timeout = cpu_to_le16(timeout),
1491 .amsdu = 0,
1492 };
1493
1494 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__,
1495 ringid, size, timeout);
1496
1497 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd));
1498 }
1499
1500 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason)
1501 {
1502 struct wmi_vring_ba_dis_cmd cmd = {
1503 .ringid = ringid,
1504 .reason = cpu_to_le16(reason),
1505 };
1506
1507 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__,
1508 ringid, reason);
1509
1510 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd));
1511 }
1512
1513 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason)
1514 {
1515 struct wmi_rcp_delba_cmd cmd = {
1516 .cidxtid = cidxtid,
1517 .reason = cpu_to_le16(reason),
1518 };
1519
1520 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__,
1521 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason);
1522
1523 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd));
1524 }
1525
1526 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
1527 u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
1528 {
1529 int rc;
1530 struct wmi_rcp_addba_resp_cmd cmd = {
1531 .cidxtid = mk_cidxtid(cid, tid),
1532 .dialog_token = token,
1533 .status_code = cpu_to_le16(status),
1534 /* bit 0: A-MSDU supported
1535 * bit 1: policy (should be 0 for us)
1536 * bits 2..5: TID
1537 * bits 6..15: buffer size
1538 */
1539 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
1540 (agg_wsize << 6)),
1541 .ba_timeout = cpu_to_le16(timeout),
1542 };
1543 struct {
1544 struct wmi_cmd_hdr wmi;
1545 struct wmi_rcp_addba_resp_sent_event evt;
1546 } __packed reply;
1547
1548 wil_dbg_wmi(wil,
1549 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
1550 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-");
1551
1552 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd),
1553 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply),
1554 100);
1555 if (rc)
1556 return rc;
1557
1558 if (reply.evt.status) {
1559 wil_err(wil, "ADDBA response failed with status %d\n",
1560 le16_to_cpu(reply.evt.status));
1561 rc = -EINVAL;
1562 }
1563
1564 return rc;
1565 }
1566
1567 void wmi_event_flush(struct wil6210_priv *wil)
1568 {
1569 struct pending_wmi_event *evt, *t;
1570
1571 wil_dbg_wmi(wil, "%s()\n", __func__);
1572
1573 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1574 list_del(&evt->list);
1575 kfree(evt);
1576 }
1577 }
1578
1579 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1580 void *d, int len)
1581 {
1582 uint i;
1583
1584 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1585 if (wmi_evt_handlers[i].eventid == id) {
1586 wmi_evt_handlers[i].handler(wil, id, d, len);
1587 return true;
1588 }
1589 }
1590
1591 return false;
1592 }
1593
1594 static void wmi_event_handle(struct wil6210_priv *wil,
1595 struct wil6210_mbox_hdr *hdr)
1596 {
1597 u16 len = le16_to_cpu(hdr->len);
1598
1599 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
1600 (len >= sizeof(struct wmi_cmd_hdr))) {
1601 struct wmi_cmd_hdr *wmi = (void *)(&hdr[1]);
1602 void *evt_data = (void *)(&wmi[1]);
1603 u16 id = le16_to_cpu(wmi->command_id);
1604
1605 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1606 id, wil->reply_id);
1607 /* check if someone waits for this event */
1608 if (wil->reply_id && wil->reply_id == id) {
1609 WARN_ON(wil->reply_buf);
1610 wmi_evt_call_handler(wil, id, evt_data,
1611 len - sizeof(*wmi));
1612 wil_dbg_wmi(wil, "%s: Complete WMI 0x%04x\n",
1613 __func__, id);
1614 complete(&wil->wmi_call);
1615 return;
1616 }
1617 /* unsolicited event */
1618 /* search for handler */
1619 if (!wmi_evt_call_handler(wil, id, evt_data,
1620 len - sizeof(*wmi))) {
1621 wil_info(wil, "Unhandled event 0x%04x\n", id);
1622 }
1623 } else {
1624 wil_err(wil, "Unknown event type\n");
1625 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1626 hdr, sizeof(*hdr) + len, true);
1627 }
1628 }
1629
1630 /*
1631 * Retrieve next WMI event from the pending list
1632 */
1633 static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1634 {
1635 ulong flags;
1636 struct list_head *ret = NULL;
1637
1638 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1639
1640 if (!list_empty(&wil->pending_wmi_ev)) {
1641 ret = wil->pending_wmi_ev.next;
1642 list_del(ret);
1643 }
1644
1645 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1646
1647 return ret;
1648 }
1649
1650 /*
1651 * Handler for the WMI events
1652 */
1653 void wmi_event_worker(struct work_struct *work)
1654 {
1655 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1656 wmi_event_worker);
1657 struct pending_wmi_event *evt;
1658 struct list_head *lh;
1659
1660 wil_dbg_wmi(wil, "Start %s\n", __func__);
1661 while ((lh = next_wmi_ev(wil)) != NULL) {
1662 evt = list_entry(lh, struct pending_wmi_event, list);
1663 wmi_event_handle(wil, &evt->event.hdr);
1664 kfree(evt);
1665 }
1666 wil_dbg_wmi(wil, "Finished %s\n", __func__);
1667 }
Linux with added FPC-III support