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Merge branch 'pm-sleep'
[deliverable/linux.git] / drivers / net / wireless / ath / wil6210 / wmi.c
1 /*
2 * Copyright (c) 2012-2015 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 /**
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
78 *
79 * array size should be in sync with the declaration in the wil6210.h
80 */
81 const 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 */
86 {0x88a000, 0x88b000, 0x88a000, "AGC_tbl"}, /* AGC table 4k */
87 {0x88b000, 0x88c000, 0x88b000, "rgf_ext"}, /* Pcie_ext_rgf 4k */
88 {0x88c000, 0x88c200, 0x88c000, "mac_rgf_ext"}, /* mac_ext_rgf 512b */
89 {0x8c0000, 0x949000, 0x8c0000, "upper"}, /* upper area 548k */
90 /*
91 * 920000..930000 ucode code RAM
92 * 930000..932000 ucode data RAM
93 * 932000..949000 back-door debug data
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 */
102 static 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 */
123 void __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 */
145 void __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
162 int wmi_read_hdr(struct wil6210_priv *wil, __le32 ptr,
163 struct wil6210_mbox_hdr *hdr)
164 {
165 void __iomem *src = wmi_buffer(wil, ptr);
166
167 if (!src)
168 return -EINVAL;
169
170 wil_memcpy_fromio_32(hdr, src, sizeof(*hdr));
171
172 return 0;
173 }
174
175 static 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 = {
187 .mid = 0,
188 .id = cpu_to_le16(cmdid),
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;
202 }
203
204 might_sleep();
205
206 if (!test_bit(wil_status_fwready, wil->status)) {
207 wil_err(wil, "WMI: cannot send command while FW not ready\n");
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);
228 wil_dbg_wmi(wil, "Head 0x%08x -> 0x%08x\n", r->head, next_head);
229 /* wait till FW finish with previous command */
230 for (retry = 5; retry > 0; retry--) {
231 r->tail = wil_r(wil, RGF_MBOX +
232 offsetof(struct wil6210_mbox_ctl, tx.tail));
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 */
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,
251 sizeof(cmd), true);
252 wil_hex_dump_wmi("cmd ", DUMP_PREFIX_OFFSET, 16, 1, buf,
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 */
257 wil_w(wil, r->head + offsetof(struct wil6210_mbox_ring_desc, sync), 1);
258 /* advance next ptr */
259 wil_w(wil, RGF_MBOX + offsetof(struct wil6210_mbox_ctl, tx.head),
260 r->head = next_head);
261
262 trace_wil6210_wmi_cmd(&cmd.wmi, buf, len);
263
264 /* interrupt to FW */
265 wil_w(wil, RGF_USER_USER_ICR + offsetof(struct RGF_ICR, ICS),
266 SW_INT_MBOX);
267
268 return 0;
269 }
270
271 int 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 ===*/
283 static void wmi_evt_ready(struct wil6210_priv *wil, int id, void *d, int len)
284 {
285 struct wireless_dev *wdev = wil->wdev;
286 struct wmi_ready_event *evt = d;
287
288 wil->fw_version = le32_to_cpu(evt->sw_version);
289 wil->n_mids = evt->numof_additional_mids;
290
291 wil_info(wil, "FW ver. %d; MAC %pM; %d MID's\n", wil->fw_version,
292 evt->mac, wil->n_mids);
293 /* ignore MAC address, we already have it from the boot loader */
294 snprintf(wdev->wiphy->fw_version, sizeof(wdev->wiphy->fw_version),
295 "%d", wil->fw_version);
296
297 wil_set_recovery_state(wil, fw_recovery_idle);
298 set_bit(wil_status_fwready, wil->status);
299 /* let the reset sequence continue */
300 complete(&wil->wmi_ready);
301 }
302
303 static void wmi_evt_rx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
304 {
305 struct wmi_rx_mgmt_packet_event *data = d;
306 struct wiphy *wiphy = wil_to_wiphy(wil);
307 struct ieee80211_mgmt *rx_mgmt_frame =
308 (struct ieee80211_mgmt *)data->payload;
309 int flen = len - offsetof(struct wmi_rx_mgmt_packet_event, payload);
310 int ch_no;
311 u32 freq;
312 struct ieee80211_channel *channel;
313 s32 signal;
314 __le16 fc;
315 u32 d_len;
316 u16 d_status;
317
318 if (flen < 0) {
319 wil_err(wil, "MGMT Rx: short event, len %d\n", len);
320 return;
321 }
322
323 d_len = le32_to_cpu(data->info.len);
324 if (d_len != flen) {
325 wil_err(wil,
326 "MGMT Rx: length mismatch, d_len %d should be %d\n",
327 d_len, flen);
328 return;
329 }
330
331 ch_no = data->info.channel + 1;
332 freq = ieee80211_channel_to_frequency(ch_no, IEEE80211_BAND_60GHZ);
333 channel = ieee80211_get_channel(wiphy, freq);
334 signal = data->info.sqi;
335 d_status = le16_to_cpu(data->info.status);
336 fc = rx_mgmt_frame->frame_control;
337
338 wil_dbg_wmi(wil, "MGMT Rx: channel %d MCS %d SNR %d SQI %d%%\n",
339 data->info.channel, data->info.mcs, data->info.snr,
340 data->info.sqi);
341 wil_dbg_wmi(wil, "status 0x%04x len %d fc 0x%04x\n", d_status, d_len,
342 le16_to_cpu(fc));
343 wil_dbg_wmi(wil, "qid %d mid %d cid %d\n",
344 data->info.qid, data->info.mid, data->info.cid);
345 wil_hex_dump_wmi("MGMT Rx ", DUMP_PREFIX_OFFSET, 16, 1, rx_mgmt_frame,
346 d_len, true);
347
348 if (!channel) {
349 wil_err(wil, "Frame on unsupported channel\n");
350 return;
351 }
352
353 if (ieee80211_is_beacon(fc) || ieee80211_is_probe_resp(fc)) {
354 struct cfg80211_bss *bss;
355 u64 tsf = le64_to_cpu(rx_mgmt_frame->u.beacon.timestamp);
356 u16 cap = le16_to_cpu(rx_mgmt_frame->u.beacon.capab_info);
357 u16 bi = le16_to_cpu(rx_mgmt_frame->u.beacon.beacon_int);
358 const u8 *ie_buf = rx_mgmt_frame->u.beacon.variable;
359 size_t ie_len = d_len - offsetof(struct ieee80211_mgmt,
360 u.beacon.variable);
361 wil_dbg_wmi(wil, "Capability info : 0x%04x\n", cap);
362 wil_dbg_wmi(wil, "TSF : 0x%016llx\n", tsf);
363 wil_dbg_wmi(wil, "Beacon interval : %d\n", bi);
364 wil_hex_dump_wmi("IE ", DUMP_PREFIX_OFFSET, 16, 1, ie_buf,
365 ie_len, true);
366
367 bss = cfg80211_inform_bss_frame(wiphy, channel, rx_mgmt_frame,
368 d_len, signal, GFP_KERNEL);
369 if (bss) {
370 wil_dbg_wmi(wil, "Added BSS %pM\n",
371 rx_mgmt_frame->bssid);
372 cfg80211_put_bss(wiphy, bss);
373 } else {
374 wil_err(wil, "cfg80211_inform_bss_frame() failed\n");
375 }
376 } else {
377 cfg80211_rx_mgmt(wil->wdev, freq, signal,
378 (void *)rx_mgmt_frame, d_len, 0);
379 }
380 }
381
382 static void wmi_evt_tx_mgmt(struct wil6210_priv *wil, int id, void *d, int len)
383 {
384 struct wmi_tx_mgmt_packet_event *data = d;
385 struct ieee80211_mgmt *mgmt_frame =
386 (struct ieee80211_mgmt *)data->payload;
387 int flen = len - offsetof(struct wmi_tx_mgmt_packet_event, payload);
388
389 wil_hex_dump_wmi("MGMT Tx ", DUMP_PREFIX_OFFSET, 16, 1, mgmt_frame,
390 flen, true);
391 }
392
393 static void wmi_evt_scan_complete(struct wil6210_priv *wil, int id,
394 void *d, int len)
395 {
396 if (wil->scan_request) {
397 struct wmi_scan_complete_event *data = d;
398 bool aborted = (data->status != WMI_SCAN_SUCCESS);
399
400 wil_dbg_wmi(wil, "SCAN_COMPLETE(0x%08x)\n", data->status);
401 wil_dbg_misc(wil, "Complete scan_request 0x%p aborted %d\n",
402 wil->scan_request, aborted);
403
404 del_timer_sync(&wil->scan_timer);
405 cfg80211_scan_done(wil->scan_request, aborted);
406 wil->scan_request = NULL;
407 } else {
408 wil_err(wil, "SCAN_COMPLETE while not scanning\n");
409 }
410 }
411
412 static void wmi_evt_connect(struct wil6210_priv *wil, int id, void *d, int len)
413 {
414 struct net_device *ndev = wil_to_ndev(wil);
415 struct wireless_dev *wdev = wil->wdev;
416 struct wmi_connect_event *evt = d;
417 int ch; /* channel number */
418 struct station_info sinfo;
419 u8 *assoc_req_ie, *assoc_resp_ie;
420 size_t assoc_req_ielen, assoc_resp_ielen;
421 /* capinfo(u16) + listen_interval(u16) + IEs */
422 const size_t assoc_req_ie_offset = sizeof(u16) * 2;
423 /* capinfo(u16) + status_code(u16) + associd(u16) + IEs */
424 const size_t assoc_resp_ie_offset = sizeof(u16) * 3;
425
426 if (len < sizeof(*evt)) {
427 wil_err(wil, "Connect event too short : %d bytes\n", len);
428 return;
429 }
430 if (len != sizeof(*evt) + evt->beacon_ie_len + evt->assoc_req_len +
431 evt->assoc_resp_len) {
432 wil_err(wil,
433 "Connect event corrupted : %d != %d + %d + %d + %d\n",
434 len, (int)sizeof(*evt), evt->beacon_ie_len,
435 evt->assoc_req_len, evt->assoc_resp_len);
436 return;
437 }
438 if (evt->cid >= WIL6210_MAX_CID) {
439 wil_err(wil, "Connect CID invalid : %d\n", evt->cid);
440 return;
441 }
442
443 ch = evt->channel + 1;
444 wil_dbg_wmi(wil, "Connect %pM channel [%d] cid %d\n",
445 evt->bssid, ch, evt->cid);
446 wil_hex_dump_wmi("connect AI : ", DUMP_PREFIX_OFFSET, 16, 1,
447 evt->assoc_info, len - sizeof(*evt), true);
448
449 /* figure out IE's */
450 assoc_req_ie = &evt->assoc_info[evt->beacon_ie_len +
451 assoc_req_ie_offset];
452 assoc_req_ielen = evt->assoc_req_len - assoc_req_ie_offset;
453 if (evt->assoc_req_len <= assoc_req_ie_offset) {
454 assoc_req_ie = NULL;
455 assoc_req_ielen = 0;
456 }
457
458 assoc_resp_ie = &evt->assoc_info[evt->beacon_ie_len +
459 evt->assoc_req_len +
460 assoc_resp_ie_offset];
461 assoc_resp_ielen = evt->assoc_resp_len - assoc_resp_ie_offset;
462 if (evt->assoc_resp_len <= assoc_resp_ie_offset) {
463 assoc_resp_ie = NULL;
464 assoc_resp_ielen = 0;
465 }
466
467 if ((wdev->iftype == NL80211_IFTYPE_STATION) ||
468 (wdev->iftype == NL80211_IFTYPE_P2P_CLIENT)) {
469 if (!test_bit(wil_status_fwconnecting, wil->status)) {
470 wil_err(wil, "Not in connecting state\n");
471 return;
472 }
473 del_timer_sync(&wil->connect_timer);
474 cfg80211_connect_result(ndev, evt->bssid,
475 assoc_req_ie, assoc_req_ielen,
476 assoc_resp_ie, assoc_resp_ielen,
477 WLAN_STATUS_SUCCESS, GFP_KERNEL);
478
479 } else if ((wdev->iftype == NL80211_IFTYPE_AP) ||
480 (wdev->iftype == NL80211_IFTYPE_P2P_GO)) {
481 memset(&sinfo, 0, sizeof(sinfo));
482
483 sinfo.generation = wil->sinfo_gen++;
484
485 if (assoc_req_ie) {
486 sinfo.assoc_req_ies = assoc_req_ie;
487 sinfo.assoc_req_ies_len = assoc_req_ielen;
488 }
489
490 cfg80211_new_sta(ndev, evt->bssid, &sinfo, GFP_KERNEL);
491 }
492 clear_bit(wil_status_fwconnecting, wil->status);
493 set_bit(wil_status_fwconnected, wil->status);
494
495 /* FIXME FW can transmit only ucast frames to peer */
496 /* FIXME real ring_id instead of hard coded 0 */
497 ether_addr_copy(wil->sta[evt->cid].addr, evt->bssid);
498 wil->sta[evt->cid].status = wil_sta_conn_pending;
499
500 wil->pending_connect_cid = evt->cid;
501 queue_work(wil->wq_service, &wil->connect_worker);
502 }
503
504 static void wmi_evt_disconnect(struct wil6210_priv *wil, int id,
505 void *d, int len)
506 {
507 struct wmi_disconnect_event *evt = d;
508 u16 reason_code = le16_to_cpu(evt->protocol_reason_status);
509
510 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
511 evt->bssid, reason_code, evt->disconnect_reason);
512
513 wil->sinfo_gen++;
514
515 mutex_lock(&wil->mutex);
516 wil6210_disconnect(wil, evt->bssid, reason_code, true);
517 mutex_unlock(&wil->mutex);
518 }
519
520 /*
521 * Firmware reports EAPOL frame using WME event.
522 * Reconstruct Ethernet frame and deliver it via normal Rx
523 */
524 static void wmi_evt_eapol_rx(struct wil6210_priv *wil, int id,
525 void *d, int len)
526 {
527 struct net_device *ndev = wil_to_ndev(wil);
528 struct wmi_eapol_rx_event *evt = d;
529 u16 eapol_len = le16_to_cpu(evt->eapol_len);
530 int sz = eapol_len + ETH_HLEN;
531 struct sk_buff *skb;
532 struct ethhdr *eth;
533 int cid;
534 struct wil_net_stats *stats = NULL;
535
536 wil_dbg_wmi(wil, "EAPOL len %d from %pM\n", eapol_len,
537 evt->src_mac);
538
539 cid = wil_find_cid(wil, evt->src_mac);
540 if (cid >= 0)
541 stats = &wil->sta[cid].stats;
542
543 if (eapol_len > 196) { /* TODO: revisit size limit */
544 wil_err(wil, "EAPOL too large\n");
545 return;
546 }
547
548 skb = alloc_skb(sz, GFP_KERNEL);
549 if (!skb) {
550 wil_err(wil, "Failed to allocate skb\n");
551 return;
552 }
553
554 eth = (struct ethhdr *)skb_put(skb, ETH_HLEN);
555 ether_addr_copy(eth->h_dest, ndev->dev_addr);
556 ether_addr_copy(eth->h_source, evt->src_mac);
557 eth->h_proto = cpu_to_be16(ETH_P_PAE);
558 memcpy(skb_put(skb, eapol_len), evt->eapol, eapol_len);
559 skb->protocol = eth_type_trans(skb, ndev);
560 if (likely(netif_rx_ni(skb) == NET_RX_SUCCESS)) {
561 ndev->stats.rx_packets++;
562 ndev->stats.rx_bytes += sz;
563 if (stats) {
564 stats->rx_packets++;
565 stats->rx_bytes += sz;
566 }
567 } else {
568 ndev->stats.rx_dropped++;
569 if (stats)
570 stats->rx_dropped++;
571 }
572 }
573
574 static void wmi_evt_vring_en(struct wil6210_priv *wil, int id, void *d, int len)
575 {
576 struct wmi_vring_en_event *evt = d;
577 u8 vri = evt->vring_index;
578
579 wil_dbg_wmi(wil, "Enable vring %d\n", vri);
580
581 if (vri >= ARRAY_SIZE(wil->vring_tx)) {
582 wil_err(wil, "Enable for invalid vring %d\n", vri);
583 return;
584 }
585 wil->vring_tx_data[vri].dot1x_open = true;
586 if (vri == wil->bcast_vring) /* no BA for bcast */
587 return;
588 if (agg_wsize >= 0)
589 wil_addba_tx_request(wil, vri, agg_wsize);
590 }
591
592 static void wmi_evt_ba_status(struct wil6210_priv *wil, int id, void *d,
593 int len)
594 {
595 struct wmi_vring_ba_status_event *evt = d;
596 struct vring_tx_data *txdata;
597
598 wil_dbg_wmi(wil, "BACK[%d] %s {%d} timeout %d AMSDU%s\n",
599 evt->ringid,
600 evt->status == WMI_BA_AGREED ? "OK" : "N/A",
601 evt->agg_wsize, __le16_to_cpu(evt->ba_timeout),
602 evt->amsdu ? "+" : "-");
603
604 if (evt->ringid >= WIL6210_MAX_TX_RINGS) {
605 wil_err(wil, "invalid ring id %d\n", evt->ringid);
606 return;
607 }
608
609 if (evt->status != WMI_BA_AGREED) {
610 evt->ba_timeout = 0;
611 evt->agg_wsize = 0;
612 evt->amsdu = 0;
613 }
614
615 txdata = &wil->vring_tx_data[evt->ringid];
616
617 txdata->agg_timeout = le16_to_cpu(evt->ba_timeout);
618 txdata->agg_wsize = evt->agg_wsize;
619 txdata->agg_amsdu = evt->amsdu;
620 txdata->addba_in_progress = false;
621 }
622
623 static void wmi_evt_addba_rx_req(struct wil6210_priv *wil, int id, void *d,
624 int len)
625 {
626 struct wmi_rcp_addba_req_event *evt = d;
627
628 wil_addba_rx_request(wil, evt->cidxtid, evt->dialog_token,
629 evt->ba_param_set, evt->ba_timeout,
630 evt->ba_seq_ctrl);
631 }
632
633 static void wmi_evt_delba(struct wil6210_priv *wil, int id, void *d, int len)
634 __acquires(&sta->tid_rx_lock) __releases(&sta->tid_rx_lock)
635 {
636 struct wmi_delba_event *evt = d;
637 u8 cid, tid;
638 u16 reason = __le16_to_cpu(evt->reason);
639 struct wil_sta_info *sta;
640 struct wil_tid_ampdu_rx *r;
641
642 might_sleep();
643 parse_cidxtid(evt->cidxtid, &cid, &tid);
644 wil_dbg_wmi(wil, "DELBA CID %d TID %d from %s reason %d\n",
645 cid, tid,
646 evt->from_initiator ? "originator" : "recipient",
647 reason);
648 if (!evt->from_initiator) {
649 int i;
650 /* find Tx vring it belongs to */
651 for (i = 0; i < ARRAY_SIZE(wil->vring2cid_tid); i++) {
652 if ((wil->vring2cid_tid[i][0] == cid) &&
653 (wil->vring2cid_tid[i][1] == tid)) {
654 struct vring_tx_data *txdata =
655 &wil->vring_tx_data[i];
656
657 wil_dbg_wmi(wil, "DELBA Tx vring %d\n", i);
658 txdata->agg_timeout = 0;
659 txdata->agg_wsize = 0;
660 txdata->addba_in_progress = false;
661
662 break; /* max. 1 matching ring */
663 }
664 }
665 if (i >= ARRAY_SIZE(wil->vring2cid_tid))
666 wil_err(wil, "DELBA: unable to find Tx vring\n");
667 return;
668 }
669
670 sta = &wil->sta[cid];
671
672 spin_lock_bh(&sta->tid_rx_lock);
673
674 r = sta->tid_rx[tid];
675 sta->tid_rx[tid] = NULL;
676 wil_tid_ampdu_rx_free(wil, r);
677
678 spin_unlock_bh(&sta->tid_rx_lock);
679 }
680
681 /**
682 * Some events are ignored for purpose; and need not be interpreted as
683 * "unhandled events"
684 */
685 static void wmi_evt_ignore(struct wil6210_priv *wil, int id, void *d, int len)
686 {
687 wil_dbg_wmi(wil, "Ignore event 0x%04x len %d\n", id, len);
688 }
689
690 static const struct {
691 int eventid;
692 void (*handler)(struct wil6210_priv *wil, int eventid,
693 void *data, int data_len);
694 } wmi_evt_handlers[] = {
695 {WMI_READY_EVENTID, wmi_evt_ready},
696 {WMI_FW_READY_EVENTID, wmi_evt_ignore},
697 {WMI_RX_MGMT_PACKET_EVENTID, wmi_evt_rx_mgmt},
698 {WMI_TX_MGMT_PACKET_EVENTID, wmi_evt_tx_mgmt},
699 {WMI_SCAN_COMPLETE_EVENTID, wmi_evt_scan_complete},
700 {WMI_CONNECT_EVENTID, wmi_evt_connect},
701 {WMI_DISCONNECT_EVENTID, wmi_evt_disconnect},
702 {WMI_EAPOL_RX_EVENTID, wmi_evt_eapol_rx},
703 {WMI_BA_STATUS_EVENTID, wmi_evt_ba_status},
704 {WMI_RCP_ADDBA_REQ_EVENTID, wmi_evt_addba_rx_req},
705 {WMI_DELBA_EVENTID, wmi_evt_delba},
706 {WMI_VRING_EN_EVENTID, wmi_evt_vring_en},
707 {WMI_DATA_PORT_OPEN_EVENTID, wmi_evt_ignore},
708 };
709
710 /*
711 * Run in IRQ context
712 * Extract WMI command from mailbox. Queue it to the @wil->pending_wmi_ev
713 * that will be eventually handled by the @wmi_event_worker in the thread
714 * context of thread "wil6210_wmi"
715 */
716 void wmi_recv_cmd(struct wil6210_priv *wil)
717 {
718 struct wil6210_mbox_ring_desc d_tail;
719 struct wil6210_mbox_hdr hdr;
720 struct wil6210_mbox_ring *r = &wil->mbox_ctl.rx;
721 struct pending_wmi_event *evt;
722 u8 *cmd;
723 void __iomem *src;
724 ulong flags;
725 unsigned n;
726
727 if (!test_bit(wil_status_mbox_ready, wil->status)) {
728 wil_err(wil, "Reset in progress. Cannot handle WMI event\n");
729 return;
730 }
731
732 for (n = 0;; n++) {
733 u16 len;
734 bool q;
735
736 r->head = wil_r(wil, RGF_MBOX +
737 offsetof(struct wil6210_mbox_ctl, rx.head));
738 if (r->tail == r->head)
739 break;
740
741 wil_dbg_wmi(wil, "Mbox head %08x tail %08x\n",
742 r->head, r->tail);
743 /* read cmd descriptor from tail */
744 wil_memcpy_fromio_32(&d_tail, wil->csr + HOSTADDR(r->tail),
745 sizeof(struct wil6210_mbox_ring_desc));
746 if (d_tail.sync == 0) {
747 wil_err(wil, "Mbox evt not owned by FW?\n");
748 break;
749 }
750
751 /* read cmd header from descriptor */
752 if (0 != wmi_read_hdr(wil, d_tail.addr, &hdr)) {
753 wil_err(wil, "Mbox evt at 0x%08x?\n",
754 le32_to_cpu(d_tail.addr));
755 break;
756 }
757 len = le16_to_cpu(hdr.len);
758 wil_dbg_wmi(wil, "Mbox evt %04x %04x %04x %02x\n",
759 le16_to_cpu(hdr.seq), len, le16_to_cpu(hdr.type),
760 hdr.flags);
761
762 /* read cmd buffer from descriptor */
763 src = wmi_buffer(wil, d_tail.addr) +
764 sizeof(struct wil6210_mbox_hdr);
765 evt = kmalloc(ALIGN(offsetof(struct pending_wmi_event,
766 event.wmi) + len, 4),
767 GFP_KERNEL);
768 if (!evt)
769 break;
770
771 evt->event.hdr = hdr;
772 cmd = (void *)&evt->event.wmi;
773 wil_memcpy_fromio_32(cmd, src, len);
774 /* mark entry as empty */
775 wil_w(wil, r->tail +
776 offsetof(struct wil6210_mbox_ring_desc, sync), 0);
777 /* indicate */
778 if ((hdr.type == WIL_MBOX_HDR_TYPE_WMI) &&
779 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
780 struct wil6210_mbox_hdr_wmi *wmi = &evt->event.wmi;
781 u16 id = le16_to_cpu(wmi->id);
782 u32 tstamp = le32_to_cpu(wmi->timestamp);
783
784 wil_dbg_wmi(wil, "WMI event 0x%04x MID %d @%d msec\n",
785 id, wmi->mid, tstamp);
786 trace_wil6210_wmi_event(wmi, &wmi[1],
787 len - sizeof(*wmi));
788 }
789 wil_hex_dump_wmi("evt ", DUMP_PREFIX_OFFSET, 16, 1,
790 &evt->event.hdr, sizeof(hdr) + len, true);
791
792 /* advance tail */
793 r->tail = r->base + ((r->tail - r->base +
794 sizeof(struct wil6210_mbox_ring_desc)) % r->size);
795 wil_w(wil, RGF_MBOX +
796 offsetof(struct wil6210_mbox_ctl, rx.tail), r->tail);
797
798 /* add to the pending list */
799 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
800 list_add_tail(&evt->list, &wil->pending_wmi_ev);
801 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
802 q = queue_work(wil->wmi_wq, &wil->wmi_event_worker);
803 wil_dbg_wmi(wil, "queue_work -> %d\n", q);
804 }
805 /* normally, 1 event per IRQ should be processed */
806 wil_dbg_wmi(wil, "%s -> %d events queued\n", __func__, n);
807 }
808
809 int wmi_call(struct wil6210_priv *wil, u16 cmdid, void *buf, u16 len,
810 u16 reply_id, void *reply, u8 reply_size, int to_msec)
811 {
812 int rc;
813 unsigned long remain;
814
815 mutex_lock(&wil->wmi_mutex);
816
817 rc = __wmi_send(wil, cmdid, buf, len);
818 if (rc)
819 goto out;
820
821 wil->reply_id = reply_id;
822 wil->reply_buf = reply;
823 wil->reply_size = reply_size;
824 remain = wait_for_completion_timeout(&wil->wmi_call,
825 msecs_to_jiffies(to_msec));
826 if (0 == remain) {
827 wil_err(wil, "wmi_call(0x%04x->0x%04x) timeout %d msec\n",
828 cmdid, reply_id, to_msec);
829 rc = -ETIME;
830 } else {
831 wil_dbg_wmi(wil,
832 "wmi_call(0x%04x->0x%04x) completed in %d msec\n",
833 cmdid, reply_id,
834 to_msec - jiffies_to_msecs(remain));
835 }
836 wil->reply_id = 0;
837 wil->reply_buf = NULL;
838 wil->reply_size = 0;
839 out:
840 mutex_unlock(&wil->wmi_mutex);
841
842 return rc;
843 }
844
845 int wmi_echo(struct wil6210_priv *wil)
846 {
847 struct wmi_echo_cmd cmd = {
848 .value = cpu_to_le32(0x12345678),
849 };
850
851 return wmi_call(wil, WMI_ECHO_CMDID, &cmd, sizeof(cmd),
852 WMI_ECHO_RSP_EVENTID, NULL, 0, 50);
853 }
854
855 int wmi_set_mac_address(struct wil6210_priv *wil, void *addr)
856 {
857 struct wmi_set_mac_address_cmd cmd;
858
859 ether_addr_copy(cmd.mac, addr);
860
861 wil_dbg_wmi(wil, "Set MAC %pM\n", addr);
862
863 return wmi_send(wil, WMI_SET_MAC_ADDRESS_CMDID, &cmd, sizeof(cmd));
864 }
865
866 int wmi_pcp_start(struct wil6210_priv *wil, int bi, u8 wmi_nettype,
867 u8 chan, u8 hidden_ssid)
868 {
869 int rc;
870
871 struct wmi_pcp_start_cmd cmd = {
872 .bcon_interval = cpu_to_le16(bi),
873 .network_type = wmi_nettype,
874 .disable_sec_offload = 1,
875 .channel = chan - 1,
876 .pcp_max_assoc_sta = max_assoc_sta,
877 .hidden_ssid = hidden_ssid,
878 };
879 struct {
880 struct wil6210_mbox_hdr_wmi wmi;
881 struct wmi_pcp_started_event evt;
882 } __packed reply;
883
884 if (!wil->privacy)
885 cmd.disable_sec = 1;
886
887 if ((cmd.pcp_max_assoc_sta > WIL6210_MAX_CID) ||
888 (cmd.pcp_max_assoc_sta <= 0)) {
889 wil_info(wil,
890 "Requested connection limit %u, valid values are 1 - %d. Setting to %d\n",
891 max_assoc_sta, WIL6210_MAX_CID, WIL6210_MAX_CID);
892 cmd.pcp_max_assoc_sta = WIL6210_MAX_CID;
893 }
894
895 /*
896 * Processing time may be huge, in case of secure AP it takes about
897 * 3500ms for FW to start AP
898 */
899 rc = wmi_call(wil, WMI_PCP_START_CMDID, &cmd, sizeof(cmd),
900 WMI_PCP_STARTED_EVENTID, &reply, sizeof(reply), 5000);
901 if (rc)
902 return rc;
903
904 if (reply.evt.status != WMI_FW_STATUS_SUCCESS)
905 rc = -EINVAL;
906
907 return rc;
908 }
909
910 int wmi_pcp_stop(struct wil6210_priv *wil)
911 {
912 return wmi_call(wil, WMI_PCP_STOP_CMDID, NULL, 0,
913 WMI_PCP_STOPPED_EVENTID, NULL, 0, 20);
914 }
915
916 int wmi_set_ssid(struct wil6210_priv *wil, u8 ssid_len, const void *ssid)
917 {
918 struct wmi_set_ssid_cmd cmd = {
919 .ssid_len = cpu_to_le32(ssid_len),
920 };
921
922 if (ssid_len > sizeof(cmd.ssid))
923 return -EINVAL;
924
925 memcpy(cmd.ssid, ssid, ssid_len);
926
927 return wmi_send(wil, WMI_SET_SSID_CMDID, &cmd, sizeof(cmd));
928 }
929
930 int wmi_get_ssid(struct wil6210_priv *wil, u8 *ssid_len, void *ssid)
931 {
932 int rc;
933 struct {
934 struct wil6210_mbox_hdr_wmi wmi;
935 struct wmi_set_ssid_cmd cmd;
936 } __packed reply;
937 int len; /* reply.cmd.ssid_len in CPU order */
938
939 rc = wmi_call(wil, WMI_GET_SSID_CMDID, NULL, 0, WMI_GET_SSID_EVENTID,
940 &reply, sizeof(reply), 20);
941 if (rc)
942 return rc;
943
944 len = le32_to_cpu(reply.cmd.ssid_len);
945 if (len > sizeof(reply.cmd.ssid))
946 return -EINVAL;
947
948 *ssid_len = len;
949 memcpy(ssid, reply.cmd.ssid, len);
950
951 return 0;
952 }
953
954 int wmi_set_channel(struct wil6210_priv *wil, int channel)
955 {
956 struct wmi_set_pcp_channel_cmd cmd = {
957 .channel = channel - 1,
958 };
959
960 return wmi_send(wil, WMI_SET_PCP_CHANNEL_CMDID, &cmd, sizeof(cmd));
961 }
962
963 int wmi_get_channel(struct wil6210_priv *wil, int *channel)
964 {
965 int rc;
966 struct {
967 struct wil6210_mbox_hdr_wmi wmi;
968 struct wmi_set_pcp_channel_cmd cmd;
969 } __packed reply;
970
971 rc = wmi_call(wil, WMI_GET_PCP_CHANNEL_CMDID, NULL, 0,
972 WMI_GET_PCP_CHANNEL_EVENTID, &reply, sizeof(reply), 20);
973 if (rc)
974 return rc;
975
976 if (reply.cmd.channel > 3)
977 return -EINVAL;
978
979 *channel = reply.cmd.channel + 1;
980
981 return 0;
982 }
983
984 int wmi_p2p_cfg(struct wil6210_priv *wil, int channel)
985 {
986 struct wmi_p2p_cfg_cmd cmd = {
987 .discovery_mode = WMI_DISCOVERY_MODE_NON_OFFLOAD,
988 .channel = channel - 1,
989 };
990
991 return wmi_send(wil, WMI_P2P_CFG_CMDID, &cmd, sizeof(cmd));
992 }
993
994 int wmi_del_cipher_key(struct wil6210_priv *wil, u8 key_index,
995 const void *mac_addr, int key_usage)
996 {
997 struct wmi_delete_cipher_key_cmd cmd = {
998 .key_index = key_index,
999 };
1000
1001 if (mac_addr)
1002 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1003
1004 return wmi_send(wil, WMI_DELETE_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1005 }
1006
1007 int wmi_add_cipher_key(struct wil6210_priv *wil, u8 key_index,
1008 const void *mac_addr, int key_len, const void *key,
1009 int key_usage)
1010 {
1011 struct wmi_add_cipher_key_cmd cmd = {
1012 .key_index = key_index,
1013 .key_usage = key_usage,
1014 .key_len = key_len,
1015 };
1016
1017 if (!key || (key_len > sizeof(cmd.key)))
1018 return -EINVAL;
1019
1020 memcpy(cmd.key, key, key_len);
1021 if (mac_addr)
1022 memcpy(cmd.mac, mac_addr, WMI_MAC_LEN);
1023
1024 return wmi_send(wil, WMI_ADD_CIPHER_KEY_CMDID, &cmd, sizeof(cmd));
1025 }
1026
1027 int wmi_set_ie(struct wil6210_priv *wil, u8 type, u16 ie_len, const void *ie)
1028 {
1029 static const char *const names[] = {
1030 [WMI_FRAME_BEACON] = "BEACON",
1031 [WMI_FRAME_PROBE_REQ] = "PROBE_REQ",
1032 [WMI_FRAME_PROBE_RESP] = "WMI_FRAME_PROBE_RESP",
1033 [WMI_FRAME_ASSOC_REQ] = "WMI_FRAME_ASSOC_REQ",
1034 [WMI_FRAME_ASSOC_RESP] = "WMI_FRAME_ASSOC_RESP",
1035 };
1036 int rc;
1037 u16 len = sizeof(struct wmi_set_appie_cmd) + ie_len;
1038 struct wmi_set_appie_cmd *cmd = kzalloc(len, GFP_KERNEL);
1039
1040 if (!cmd) {
1041 rc = -ENOMEM;
1042 goto out;
1043 }
1044 if (!ie)
1045 ie_len = 0;
1046
1047 cmd->mgmt_frm_type = type;
1048 /* BUG: FW API define ieLen as u8. Will fix FW */
1049 cmd->ie_len = cpu_to_le16(ie_len);
1050 memcpy(cmd->ie_info, ie, ie_len);
1051 rc = wmi_send(wil, WMI_SET_APPIE_CMDID, cmd, len);
1052 kfree(cmd);
1053 out:
1054 if (rc) {
1055 const char *name = type < ARRAY_SIZE(names) ?
1056 names[type] : "??";
1057 wil_err(wil, "set_ie(%d %s) failed : %d\n", type, name, rc);
1058 }
1059
1060 return rc;
1061 }
1062
1063 /**
1064 * wmi_rxon - turn radio on/off
1065 * @on: turn on if true, off otherwise
1066 *
1067 * Only switch radio. Channel should be set separately.
1068 * No timeout for rxon - radio turned on forever unless some other call
1069 * turns it off
1070 */
1071 int wmi_rxon(struct wil6210_priv *wil, bool on)
1072 {
1073 int rc;
1074 struct {
1075 struct wil6210_mbox_hdr_wmi wmi;
1076 struct wmi_listen_started_event evt;
1077 } __packed reply;
1078
1079 wil_info(wil, "%s(%s)\n", __func__, on ? "on" : "off");
1080
1081 if (on) {
1082 rc = wmi_call(wil, WMI_START_LISTEN_CMDID, NULL, 0,
1083 WMI_LISTEN_STARTED_EVENTID,
1084 &reply, sizeof(reply), 100);
1085 if ((rc == 0) && (reply.evt.status != WMI_FW_STATUS_SUCCESS))
1086 rc = -EINVAL;
1087 } else {
1088 rc = wmi_call(wil, WMI_DISCOVERY_STOP_CMDID, NULL, 0,
1089 WMI_DISCOVERY_STOPPED_EVENTID, NULL, 0, 20);
1090 }
1091
1092 return rc;
1093 }
1094
1095 int wmi_rx_chain_add(struct wil6210_priv *wil, struct vring *vring)
1096 {
1097 struct wireless_dev *wdev = wil->wdev;
1098 struct net_device *ndev = wil_to_ndev(wil);
1099 struct wmi_cfg_rx_chain_cmd cmd = {
1100 .action = WMI_RX_CHAIN_ADD,
1101 .rx_sw_ring = {
1102 .max_mpdu_size = cpu_to_le16(wil_mtu2macbuf(mtu_max)),
1103 .ring_mem_base = cpu_to_le64(vring->pa),
1104 .ring_size = cpu_to_le16(vring->size),
1105 },
1106 .mid = 0, /* TODO - what is it? */
1107 .decap_trans_type = WMI_DECAP_TYPE_802_3,
1108 .reorder_type = WMI_RX_SW_REORDER,
1109 .host_thrsh = cpu_to_le16(rx_ring_overflow_thrsh),
1110 };
1111 struct {
1112 struct wil6210_mbox_hdr_wmi wmi;
1113 struct wmi_cfg_rx_chain_done_event evt;
1114 } __packed evt;
1115 int rc;
1116
1117 if (wdev->iftype == NL80211_IFTYPE_MONITOR) {
1118 struct ieee80211_channel *ch = wdev->preset_chandef.chan;
1119
1120 cmd.sniffer_cfg.mode = cpu_to_le32(WMI_SNIFFER_ON);
1121 if (ch)
1122 cmd.sniffer_cfg.channel = ch->hw_value - 1;
1123 cmd.sniffer_cfg.phy_info_mode =
1124 cpu_to_le32(ndev->type == ARPHRD_IEEE80211_RADIOTAP);
1125 cmd.sniffer_cfg.phy_support =
1126 cpu_to_le32((wil->monitor_flags & MONITOR_FLAG_CONTROL)
1127 ? WMI_SNIFFER_CP : WMI_SNIFFER_BOTH_PHYS);
1128 } else {
1129 /* Initialize offload (in non-sniffer mode).
1130 * Linux IP stack always calculates IP checksum
1131 * HW always calculate TCP/UDP checksum
1132 */
1133 cmd.l3_l4_ctrl |= (1 << L3_L4_CTRL_TCPIP_CHECKSUM_EN_POS);
1134 }
1135
1136 if (rx_align_2)
1137 cmd.l2_802_3_offload_ctrl |=
1138 L2_802_3_OFFLOAD_CTRL_SNAP_KEEP_MSK;
1139
1140 /* typical time for secure PCP is 840ms */
1141 rc = wmi_call(wil, WMI_CFG_RX_CHAIN_CMDID, &cmd, sizeof(cmd),
1142 WMI_CFG_RX_CHAIN_DONE_EVENTID, &evt, sizeof(evt), 2000);
1143 if (rc)
1144 return rc;
1145
1146 vring->hwtail = le32_to_cpu(evt.evt.rx_ring_tail_ptr);
1147
1148 wil_dbg_misc(wil, "Rx init: status %d tail 0x%08x\n",
1149 le32_to_cpu(evt.evt.status), vring->hwtail);
1150
1151 if (le32_to_cpu(evt.evt.status) != WMI_CFG_RX_CHAIN_SUCCESS)
1152 rc = -EINVAL;
1153
1154 return rc;
1155 }
1156
1157 int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf)
1158 {
1159 int rc;
1160 struct wmi_temp_sense_cmd cmd = {
1161 .measure_baseband_en = cpu_to_le32(!!t_bb),
1162 .measure_rf_en = cpu_to_le32(!!t_rf),
1163 .measure_mode = cpu_to_le32(TEMPERATURE_MEASURE_NOW),
1164 };
1165 struct {
1166 struct wil6210_mbox_hdr_wmi wmi;
1167 struct wmi_temp_sense_done_event evt;
1168 } __packed reply;
1169
1170 rc = wmi_call(wil, WMI_TEMP_SENSE_CMDID, &cmd, sizeof(cmd),
1171 WMI_TEMP_SENSE_DONE_EVENTID, &reply, sizeof(reply), 100);
1172 if (rc)
1173 return rc;
1174
1175 if (t_bb)
1176 *t_bb = le32_to_cpu(reply.evt.baseband_t1000);
1177 if (t_rf)
1178 *t_rf = le32_to_cpu(reply.evt.rf_t1000);
1179
1180 return 0;
1181 }
1182
1183 int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason)
1184 {
1185 int rc;
1186 u16 reason_code;
1187 struct wmi_disconnect_sta_cmd cmd = {
1188 .disconnect_reason = cpu_to_le16(reason),
1189 };
1190 struct {
1191 struct wil6210_mbox_hdr_wmi wmi;
1192 struct wmi_disconnect_event evt;
1193 } __packed reply;
1194
1195 ether_addr_copy(cmd.dst_mac, mac);
1196
1197 wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason);
1198
1199 rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd),
1200 WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000);
1201 /* failure to disconnect in reasonable time treated as FW error */
1202 if (rc) {
1203 wil_fw_error_recovery(wil);
1204 return rc;
1205 }
1206
1207 /* call event handler manually after processing wmi_call,
1208 * to avoid deadlock - disconnect event handler acquires wil->mutex
1209 * while it is already held here
1210 */
1211 reason_code = le16_to_cpu(reply.evt.protocol_reason_status);
1212
1213 wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n",
1214 reply.evt.bssid, reason_code,
1215 reply.evt.disconnect_reason);
1216
1217 wil->sinfo_gen++;
1218 wil6210_disconnect(wil, reply.evt.bssid, reason_code, true);
1219
1220 return 0;
1221 }
1222
1223 int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)
1224 {
1225 struct wmi_vring_ba_en_cmd cmd = {
1226 .ringid = ringid,
1227 .agg_max_wsize = size,
1228 .ba_timeout = cpu_to_le16(timeout),
1229 .amsdu = 0,
1230 };
1231
1232 wil_dbg_wmi(wil, "%s(ring %d size %d timeout %d)\n", __func__,
1233 ringid, size, timeout);
1234
1235 return wmi_send(wil, WMI_VRING_BA_EN_CMDID, &cmd, sizeof(cmd));
1236 }
1237
1238 int wmi_delba_tx(struct wil6210_priv *wil, u8 ringid, u16 reason)
1239 {
1240 struct wmi_vring_ba_dis_cmd cmd = {
1241 .ringid = ringid,
1242 .reason = cpu_to_le16(reason),
1243 };
1244
1245 wil_dbg_wmi(wil, "%s(ring %d reason %d)\n", __func__,
1246 ringid, reason);
1247
1248 return wmi_send(wil, WMI_VRING_BA_DIS_CMDID, &cmd, sizeof(cmd));
1249 }
1250
1251 int wmi_delba_rx(struct wil6210_priv *wil, u8 cidxtid, u16 reason)
1252 {
1253 struct wmi_rcp_delba_cmd cmd = {
1254 .cidxtid = cidxtid,
1255 .reason = cpu_to_le16(reason),
1256 };
1257
1258 wil_dbg_wmi(wil, "%s(CID %d TID %d reason %d)\n", __func__,
1259 cidxtid & 0xf, (cidxtid >> 4) & 0xf, reason);
1260
1261 return wmi_send(wil, WMI_RCP_DELBA_CMDID, &cmd, sizeof(cmd));
1262 }
1263
1264 int wmi_addba_rx_resp(struct wil6210_priv *wil, u8 cid, u8 tid, u8 token,
1265 u16 status, bool amsdu, u16 agg_wsize, u16 timeout)
1266 {
1267 int rc;
1268 struct wmi_rcp_addba_resp_cmd cmd = {
1269 .cidxtid = mk_cidxtid(cid, tid),
1270 .dialog_token = token,
1271 .status_code = cpu_to_le16(status),
1272 /* bit 0: A-MSDU supported
1273 * bit 1: policy (should be 0 for us)
1274 * bits 2..5: TID
1275 * bits 6..15: buffer size
1276 */
1277 .ba_param_set = cpu_to_le16((amsdu ? 1 : 0) | (tid << 2) |
1278 (agg_wsize << 6)),
1279 .ba_timeout = cpu_to_le16(timeout),
1280 };
1281 struct {
1282 struct wil6210_mbox_hdr_wmi wmi;
1283 struct wmi_rcp_addba_resp_sent_event evt;
1284 } __packed reply;
1285
1286 wil_dbg_wmi(wil,
1287 "ADDBA response for CID %d TID %d size %d timeout %d status %d AMSDU%s\n",
1288 cid, tid, agg_wsize, timeout, status, amsdu ? "+" : "-");
1289
1290 rc = wmi_call(wil, WMI_RCP_ADDBA_RESP_CMDID, &cmd, sizeof(cmd),
1291 WMI_RCP_ADDBA_RESP_SENT_EVENTID, &reply, sizeof(reply),
1292 100);
1293 if (rc)
1294 return rc;
1295
1296 if (reply.evt.status) {
1297 wil_err(wil, "ADDBA response failed with status %d\n",
1298 le16_to_cpu(reply.evt.status));
1299 rc = -EINVAL;
1300 }
1301
1302 return rc;
1303 }
1304
1305 void wmi_event_flush(struct wil6210_priv *wil)
1306 {
1307 struct pending_wmi_event *evt, *t;
1308
1309 wil_dbg_wmi(wil, "%s()\n", __func__);
1310
1311 list_for_each_entry_safe(evt, t, &wil->pending_wmi_ev, list) {
1312 list_del(&evt->list);
1313 kfree(evt);
1314 }
1315 }
1316
1317 static bool wmi_evt_call_handler(struct wil6210_priv *wil, int id,
1318 void *d, int len)
1319 {
1320 uint i;
1321
1322 for (i = 0; i < ARRAY_SIZE(wmi_evt_handlers); i++) {
1323 if (wmi_evt_handlers[i].eventid == id) {
1324 wmi_evt_handlers[i].handler(wil, id, d, len);
1325 return true;
1326 }
1327 }
1328
1329 return false;
1330 }
1331
1332 static void wmi_event_handle(struct wil6210_priv *wil,
1333 struct wil6210_mbox_hdr *hdr)
1334 {
1335 u16 len = le16_to_cpu(hdr->len);
1336
1337 if ((hdr->type == WIL_MBOX_HDR_TYPE_WMI) &&
1338 (len >= sizeof(struct wil6210_mbox_hdr_wmi))) {
1339 struct wil6210_mbox_hdr_wmi *wmi = (void *)(&hdr[1]);
1340 void *evt_data = (void *)(&wmi[1]);
1341 u16 id = le16_to_cpu(wmi->id);
1342
1343 wil_dbg_wmi(wil, "Handle WMI 0x%04x (reply_id 0x%04x)\n",
1344 id, wil->reply_id);
1345 /* check if someone waits for this event */
1346 if (wil->reply_id && wil->reply_id == id) {
1347 if (wil->reply_buf) {
1348 memcpy(wil->reply_buf, wmi,
1349 min(len, wil->reply_size));
1350 } else {
1351 wmi_evt_call_handler(wil, id, evt_data,
1352 len - sizeof(*wmi));
1353 }
1354 wil_dbg_wmi(wil, "Complete WMI 0x%04x\n", id);
1355 complete(&wil->wmi_call);
1356 return;
1357 }
1358 /* unsolicited event */
1359 /* search for handler */
1360 if (!wmi_evt_call_handler(wil, id, evt_data,
1361 len - sizeof(*wmi))) {
1362 wil_info(wil, "Unhandled event 0x%04x\n", id);
1363 }
1364 } else {
1365 wil_err(wil, "Unknown event type\n");
1366 print_hex_dump(KERN_ERR, "evt?? ", DUMP_PREFIX_OFFSET, 16, 1,
1367 hdr, sizeof(*hdr) + len, true);
1368 }
1369 }
1370
1371 /*
1372 * Retrieve next WMI event from the pending list
1373 */
1374 static struct list_head *next_wmi_ev(struct wil6210_priv *wil)
1375 {
1376 ulong flags;
1377 struct list_head *ret = NULL;
1378
1379 spin_lock_irqsave(&wil->wmi_ev_lock, flags);
1380
1381 if (!list_empty(&wil->pending_wmi_ev)) {
1382 ret = wil->pending_wmi_ev.next;
1383 list_del(ret);
1384 }
1385
1386 spin_unlock_irqrestore(&wil->wmi_ev_lock, flags);
1387
1388 return ret;
1389 }
1390
1391 /*
1392 * Handler for the WMI events
1393 */
1394 void wmi_event_worker(struct work_struct *work)
1395 {
1396 struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1397 wmi_event_worker);
1398 struct pending_wmi_event *evt;
1399 struct list_head *lh;
1400
1401 wil_dbg_wmi(wil, "Start %s\n", __func__);
1402 while ((lh = next_wmi_ev(wil)) != NULL) {
1403 evt = list_entry(lh, struct pending_wmi_event, list);
1404 wmi_event_handle(wil, &evt->event.hdr);
1405 kfree(evt);
1406 }
1407 wil_dbg_wmi(wil, "Finished %s\n", __func__);
1408 }
Linux kernel - Deliverables
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