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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2/*
3 * Copyright (C) 2013-2014, 2018-2020, 2022-2023 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 */
6#include <linux/ieee80211.h>
7#include <linux/etherdevice.h>
8#include <net/mac80211.h>
9
10#include "fw/api/coex.h"
11#include "iwl-modparams.h"
12#include "mvm.h"
13#include "iwl-debug.h"
14
15/* 20MHz / 40MHz below / 40Mhz above*/
16static const __le64 iwl_ci_mask[][3] = {
17 /* dummy entry for channel 0 */
18 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
19 {
20 cpu_to_le64(0x0000001FFFULL),
21 cpu_to_le64(0x0ULL),
22 cpu_to_le64(0x00007FFFFFULL),
23 },
24 {
25 cpu_to_le64(0x000000FFFFULL),
26 cpu_to_le64(0x0ULL),
27 cpu_to_le64(0x0003FFFFFFULL),
28 },
29 {
30 cpu_to_le64(0x000003FFFCULL),
31 cpu_to_le64(0x0ULL),
32 cpu_to_le64(0x000FFFFFFCULL),
33 },
34 {
35 cpu_to_le64(0x00001FFFE0ULL),
36 cpu_to_le64(0x0ULL),
37 cpu_to_le64(0x007FFFFFE0ULL),
38 },
39 {
40 cpu_to_le64(0x00007FFF80ULL),
41 cpu_to_le64(0x00007FFFFFULL),
42 cpu_to_le64(0x01FFFFFF80ULL),
43 },
44 {
45 cpu_to_le64(0x0003FFFC00ULL),
46 cpu_to_le64(0x0003FFFFFFULL),
47 cpu_to_le64(0x0FFFFFFC00ULL),
48 },
49 {
50 cpu_to_le64(0x000FFFF000ULL),
51 cpu_to_le64(0x000FFFFFFCULL),
52 cpu_to_le64(0x3FFFFFF000ULL),
53 },
54 {
55 cpu_to_le64(0x007FFF8000ULL),
56 cpu_to_le64(0x007FFFFFE0ULL),
57 cpu_to_le64(0xFFFFFF8000ULL),
58 },
59 {
60 cpu_to_le64(0x01FFFE0000ULL),
61 cpu_to_le64(0x01FFFFFF80ULL),
62 cpu_to_le64(0xFFFFFE0000ULL),
63 },
64 {
65 cpu_to_le64(0x0FFFF00000ULL),
66 cpu_to_le64(0x0FFFFFFC00ULL),
67 cpu_to_le64(0x0ULL),
68 },
69 {
70 cpu_to_le64(0x3FFFC00000ULL),
71 cpu_to_le64(0x3FFFFFF000ULL),
72 cpu_to_le64(0x0)
73 },
74 {
75 cpu_to_le64(0xFFFE000000ULL),
76 cpu_to_le64(0xFFFFFF8000ULL),
77 cpu_to_le64(0x0)
78 },
79 {
80 cpu_to_le64(0xFFF8000000ULL),
81 cpu_to_le64(0xFFFFFE0000ULL),
82 cpu_to_le64(0x0)
83 },
84 {
85 cpu_to_le64(0xFE00000000ULL),
86 cpu_to_le64(0x0ULL),
87 cpu_to_le64(0x0ULL)
88 },
89};
90
91static enum iwl_bt_coex_lut_type
92iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
93{
94 struct ieee80211_chanctx_conf *chanctx_conf;
95 enum iwl_bt_coex_lut_type ret;
96 u16 phy_ctx_id;
97 u32 primary_ch_phy_id, secondary_ch_phy_id;
98
99 /*
100 * Checking that we hold mvm->mutex is a good idea, but the rate
101 * control can't acquire the mutex since it runs in Tx path.
102 * So this is racy in that case, but in the worst case, the AMPDU
103 * size limit will be wrong for a short time which is not a big
104 * issue.
105 */
106
107 rcu_read_lock();
108
109 chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf);
110
111 if (!chanctx_conf ||
112 chanctx_conf->def.chan->band != NL80211_BAND_2GHZ) {
113 rcu_read_unlock();
114 return BT_COEX_INVALID_LUT;
115 }
116
117 ret = BT_COEX_TX_DIS_LUT;
118
119 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
120 primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id);
121 secondary_ch_phy_id =
122 le32_to_cpu(mvm->last_bt_ci_cmd.secondary_ch_phy_id);
123
124 if (primary_ch_phy_id == phy_ctx_id)
125 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
126 else if (secondary_ch_phy_id == phy_ctx_id)
127 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
128 /* else - default = TX TX disallowed */
129
130 rcu_read_unlock();
131
132 return ret;
133}
134
135int iwl_mvm_send_bt_init_conf(struct iwl_mvm *mvm)
136{
137 struct iwl_bt_coex_cmd bt_cmd = {};
138 u32 mode;
139
140 lockdep_assert_held(&mvm->mutex);
141
142 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
143 switch (mvm->bt_force_ant_mode) {
144 case BT_FORCE_ANT_BT:
145 mode = BT_COEX_BT;
146 break;
147 case BT_FORCE_ANT_WIFI:
148 mode = BT_COEX_WIFI;
149 break;
150 default:
151 WARN_ON(1);
152 mode = 0;
153 }
154
155 bt_cmd.mode = cpu_to_le32(mode);
156 goto send_cmd;
157 }
158
159 bt_cmd.mode = cpu_to_le32(BT_COEX_NW);
160
161 if (IWL_MVM_BT_COEX_SYNC2SCO)
162 bt_cmd.enabled_modules |=
163 cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED);
164
165 if (iwl_mvm_is_mplut_supported(mvm))
166 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED);
167
168 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET);
169
170send_cmd:
171 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
172 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
173
174 return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, 0, sizeof(bt_cmd), &bt_cmd);
175}
176
177static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
178 bool enable)
179{
180 struct iwl_bt_coex_reduced_txp_update_cmd cmd = {};
181 struct iwl_mvm_sta *mvmsta;
182 u32 value;
183
184 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
185 if (!mvmsta)
186 return 0;
187
188 /* nothing to do */
189 if (mvmsta->bt_reduced_txpower == enable)
190 return 0;
191
192 value = mvmsta->deflink.sta_id;
193
194 if (enable)
195 value |= BT_REDUCED_TX_POWER_BIT;
196
197 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
198 enable ? "en" : "dis", sta_id);
199
200 cmd.reduced_txp = cpu_to_le32(value);
201 mvmsta->bt_reduced_txpower = enable;
202
203 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP,
204 CMD_ASYNC, sizeof(cmd), &cmd);
205}
206
207struct iwl_bt_iterator_data {
208 struct iwl_bt_coex_profile_notif *notif;
209 struct iwl_mvm *mvm;
210 struct ieee80211_chanctx_conf *primary;
211 struct ieee80211_chanctx_conf *secondary;
212 bool primary_ll;
213 u8 primary_load;
214 u8 secondary_load;
215};
216
217static inline
218void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
219 struct ieee80211_vif *vif,
220 bool enable, int rssi)
221{
222 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
223
224 mvmvif->bf_data.last_bt_coex_event = rssi;
225 mvmvif->bf_data.bt_coex_max_thold =
226 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
227 mvmvif->bf_data.bt_coex_min_thold =
228 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
229}
230
231#define MVM_COEX_TCM_PERIOD (HZ * 10)
232
233static void iwl_mvm_bt_coex_tcm_based_ci(struct iwl_mvm *mvm,
234 struct iwl_bt_iterator_data *data)
235{
236 unsigned long now = jiffies;
237
238 if (!time_after(now, mvm->bt_coex_last_tcm_ts + MVM_COEX_TCM_PERIOD))
239 return;
240
241 mvm->bt_coex_last_tcm_ts = now;
242
243 /* We assume here that we don't have more than 2 vifs on 2.4GHz */
244
245 /* if the primary is low latency, it will stay primary */
246 if (data->primary_ll)
247 return;
248
249 if (data->primary_load >= data->secondary_load)
250 return;
251
252 swap(data->primary, data->secondary);
253}
254
255static void iwl_mvm_bt_notif_per_link(struct iwl_mvm *mvm,
256 struct ieee80211_vif *vif,
257 struct iwl_bt_iterator_data *data,
258 unsigned int link_id)
259{
260 /* default smps_mode is AUTOMATIC - only used for client modes */
261 enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC;
262 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
263 u32 bt_activity_grading, min_ag_for_static_smps;
264 struct ieee80211_chanctx_conf *chanctx_conf;
265 struct iwl_mvm_vif_link_info *link_info;
266 struct ieee80211_bss_conf *link_conf;
267 int ave_rssi;
268
269 lockdep_assert_held(&mvm->mutex);
270
271 link_info = mvmvif->link[link_id];
272 if (!link_info)
273 return;
274
275 link_conf = rcu_dereference(vif->link_conf[link_id]);
276 /* This can happen due to races: if we receive the notification
277 * and have the mutex held, while mac80211 is stuck on our mutex
278 * in the middle of removing the link.
279 */
280 if (!link_conf)
281 return;
282
283 chanctx_conf = rcu_dereference(link_conf->chanctx_conf);
284
285 /* If channel context is invalid or not on 2.4GHz .. */
286 if ((!chanctx_conf ||
287 chanctx_conf->def.chan->band != NL80211_BAND_2GHZ)) {
288 if (vif->type == NL80211_IFTYPE_STATION) {
289 /* ... relax constraints and disable rssi events */
290 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
291 smps_mode, link_id);
292 iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id,
293 false);
294 /* FIXME: should this be per link? */
295 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
296 }
297 return;
298 }
299
300 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2))
301 min_ag_for_static_smps = BT_VERY_HIGH_TRAFFIC;
302 else
303 min_ag_for_static_smps = BT_HIGH_TRAFFIC;
304
305 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
306 if (bt_activity_grading >= min_ag_for_static_smps)
307 smps_mode = IEEE80211_SMPS_STATIC;
308 else if (bt_activity_grading >= BT_LOW_TRAFFIC)
309 smps_mode = IEEE80211_SMPS_DYNAMIC;
310
311 /* relax SMPS constraints for next association */
312 if (!vif->cfg.assoc)
313 smps_mode = IEEE80211_SMPS_AUTOMATIC;
314
315 if (link_info->phy_ctxt &&
316 (mvm->last_bt_notif.rrc_status & BIT(link_info->phy_ctxt->id)))
317 smps_mode = IEEE80211_SMPS_AUTOMATIC;
318
319 IWL_DEBUG_COEX(data->mvm,
320 "mac %d link %d: bt_activity_grading %d smps_req %d\n",
321 mvmvif->id, link_info->fw_link_id,
322 bt_activity_grading, smps_mode);
323
324 if (vif->type == NL80211_IFTYPE_STATION)
325 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
326 smps_mode, link_id);
327
328 /* low latency is always primary */
329 if (iwl_mvm_vif_low_latency(mvmvif)) {
330 data->primary_ll = true;
331
332 data->secondary = data->primary;
333 data->primary = chanctx_conf;
334 }
335
336 if (vif->type == NL80211_IFTYPE_AP) {
337 if (!mvmvif->ap_ibss_active)
338 return;
339
340 if (chanctx_conf == data->primary)
341 return;
342
343 if (!data->primary_ll) {
344 /*
345 * downgrade the current primary no matter what its
346 * type is.
347 */
348 data->secondary = data->primary;
349 data->primary = chanctx_conf;
350 } else {
351 /* there is low latency vif - we will be secondary */
352 data->secondary = chanctx_conf;
353 }
354
355 /* FIXME: TCM load per interface? or need something per link? */
356 if (data->primary == chanctx_conf)
357 data->primary_load = mvm->tcm.result.load[mvmvif->id];
358 else if (data->secondary == chanctx_conf)
359 data->secondary_load = mvm->tcm.result.load[mvmvif->id];
360 return;
361 }
362
363 /*
364 * STA / P2P Client, try to be primary if first vif. If we are in low
365 * latency mode, we are already in primary and just don't do much
366 */
367 if (!data->primary || data->primary == chanctx_conf)
368 data->primary = chanctx_conf;
369 else if (!data->secondary)
370 /* if secondary is not NULL, it might be a GO */
371 data->secondary = chanctx_conf;
372
373 /* FIXME: TCM load per interface? or need something per link? */
374 if (data->primary == chanctx_conf)
375 data->primary_load = mvm->tcm.result.load[mvmvif->id];
376 else if (data->secondary == chanctx_conf)
377 data->secondary_load = mvm->tcm.result.load[mvmvif->id];
378 /*
379 * don't reduce the Tx power if one of these is true:
380 * we are in LOOSE
381 * BT is inactive
382 * we are not associated
383 */
384 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
385 le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF ||
386 !vif->cfg.assoc) {
387 iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, false);
388 /* FIXME: should this be per link? */
389 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
390 return;
391 }
392
393 /* try to get the avg rssi from fw */
394 ave_rssi = mvmvif->bf_data.ave_beacon_signal;
395
396 /* if the RSSI isn't valid, fake it is very low */
397 if (!ave_rssi)
398 ave_rssi = -100;
399 if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
400 if (iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id,
401 true))
402 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
403 } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
404 if (iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id,
405 false))
406 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
407 }
408
409 /* Begin to monitor the RSSI: it may influence the reduced Tx power */
410 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
411}
412
413/* must be called under rcu_read_lock */
414static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
415 struct ieee80211_vif *vif)
416{
417 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
418 struct iwl_bt_iterator_data *data = _data;
419 struct iwl_mvm *mvm = data->mvm;
420 unsigned int link_id;
421
422 lockdep_assert_held(&mvm->mutex);
423
424 switch (vif->type) {
425 case NL80211_IFTYPE_STATION:
426 break;
427 case NL80211_IFTYPE_AP:
428 if (!mvmvif->ap_ibss_active)
429 return;
430 break;
431 default:
432 return;
433 }
434
435 for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++)
436 iwl_mvm_bt_notif_per_link(mvm, vif, data, link_id);
437}
438
439static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
440{
441 struct iwl_bt_iterator_data data = {
442 .mvm = mvm,
443 .notif = &mvm->last_bt_notif,
444 };
445 struct iwl_bt_coex_ci_cmd cmd = {};
446 u8 ci_bw_idx;
447
448 /* Ignore updates if we are in force mode */
449 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
450 return;
451
452 rcu_read_lock();
453 ieee80211_iterate_active_interfaces_atomic(
454 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
455 iwl_mvm_bt_notif_iterator, &data);
456
457 iwl_mvm_bt_coex_tcm_based_ci(mvm, &data);
458
459 if (data.primary) {
460 struct ieee80211_chanctx_conf *chan = data.primary;
461 if (WARN_ON(!chan->def.chan)) {
462 rcu_read_unlock();
463 return;
464 }
465
466 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
467 ci_bw_idx = 0;
468 } else {
469 if (chan->def.center_freq1 >
470 chan->def.chan->center_freq)
471 ci_bw_idx = 2;
472 else
473 ci_bw_idx = 1;
474 }
475
476 cmd.bt_primary_ci =
477 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
478 cmd.primary_ch_phy_id =
479 cpu_to_le32(*((u16 *)data.primary->drv_priv));
480 }
481
482 if (data.secondary) {
483 struct ieee80211_chanctx_conf *chan = data.secondary;
484 if (WARN_ON(!data.secondary->def.chan)) {
485 rcu_read_unlock();
486 return;
487 }
488
489 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
490 ci_bw_idx = 0;
491 } else {
492 if (chan->def.center_freq1 >
493 chan->def.chan->center_freq)
494 ci_bw_idx = 2;
495 else
496 ci_bw_idx = 1;
497 }
498
499 cmd.bt_secondary_ci =
500 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
501 cmd.secondary_ch_phy_id =
502 cpu_to_le32(*((u16 *)data.secondary->drv_priv));
503 }
504
505 rcu_read_unlock();
506
507 /* Don't spam the fw with the same command over and over */
508 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
509 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
510 sizeof(cmd), &cmd))
511 IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
512 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
513 }
514}
515
516void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
517 struct iwl_rx_cmd_buffer *rxb)
518{
519 struct iwl_rx_packet *pkt = rxb_addr(rxb);
520 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
521
522 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
523 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
524 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
525 le32_to_cpu(notif->primary_ch_lut));
526 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
527 le32_to_cpu(notif->secondary_ch_lut));
528 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
529 le32_to_cpu(notif->bt_activity_grading));
530
531 /* remember this notification for future use: rssi fluctuations */
532 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
533
534 iwl_mvm_bt_coex_notif_handle(mvm);
535}
536
537void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
538 enum ieee80211_rssi_event_data rssi_event)
539{
540 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
541 int ret;
542
543 lockdep_assert_held(&mvm->mutex);
544
545 /* Ignore updates if we are in force mode */
546 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
547 return;
548
549 /*
550 * Rssi update while not associated - can happen since the statistics
551 * are handled asynchronously
552 */
553 if (mvmvif->deflink.ap_sta_id == IWL_MVM_INVALID_STA)
554 return;
555
556 /* No BT - reports should be disabled */
557 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF)
558 return;
559
560 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
561 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
562
563 /*
564 * Check if rssi is good enough for reduced Tx power, but not in loose
565 * scheme.
566 */
567 if (rssi_event == RSSI_EVENT_LOW ||
568 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
569 ret = iwl_mvm_bt_coex_reduced_txp(mvm,
570 mvmvif->deflink.ap_sta_id,
571 false);
572 else
573 ret = iwl_mvm_bt_coex_reduced_txp(mvm,
574 mvmvif->deflink.ap_sta_id,
575 true);
576
577 if (ret)
578 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
579}
580
581#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000)
582#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
583
584u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
585 struct ieee80211_sta *sta)
586{
587 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
588 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
589 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->deflink.phy_ctxt;
590 enum iwl_bt_coex_lut_type lut_type;
591
592 if (mvm->last_bt_notif.ttc_status & BIT(phy_ctxt->id))
593 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
594
595 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
596 BT_HIGH_TRAFFIC)
597 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
598
599 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
600
601 if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
602 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
603
604 /* tight coex, high bt traffic, reduce AGG time limit */
605 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
606}
607
608bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
609 struct ieee80211_sta *sta)
610{
611 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
612 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
613 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->deflink.phy_ctxt;
614 enum iwl_bt_coex_lut_type lut_type;
615
616 if (mvm->last_bt_notif.ttc_status & BIT(phy_ctxt->id))
617 return true;
618
619 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
620 BT_HIGH_TRAFFIC)
621 return true;
622
623 /*
624 * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
625 * since BT is already killed.
626 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
627 * we Tx.
628 * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
629 */
630 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
631 return lut_type != BT_COEX_LOOSE_LUT;
632}
633
634bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant)
635{
636 if (ant & mvm->cfg->non_shared_ant)
637 return true;
638
639 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
640 BT_HIGH_TRAFFIC;
641}
642
643bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm)
644{
645 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < BT_HIGH_TRAFFIC;
646}
647
648bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
649 enum nl80211_band band)
650{
651 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
652
653 if (band != NL80211_BAND_2GHZ)
654 return false;
655
656 return bt_activity >= BT_LOW_TRAFFIC;
657}
658
659u8 iwl_mvm_bt_coex_get_single_ant_msk(struct iwl_mvm *mvm, u8 enabled_ants)
660{
661 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2) &&
662 (mvm->cfg->non_shared_ant & enabled_ants))
663 return mvm->cfg->non_shared_ant;
664
665 return first_antenna(enabled_ants);
666}
667
668u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
669 struct ieee80211_tx_info *info, u8 ac)
670{
671 __le16 fc = hdr->frame_control;
672 bool mplut_enabled = iwl_mvm_is_mplut_supported(mvm);
673
674 if (info->band != NL80211_BAND_2GHZ)
675 return 0;
676
677 if (unlikely(mvm->bt_tx_prio))
678 return mvm->bt_tx_prio - 1;
679
680 if (likely(ieee80211_is_data(fc))) {
681 if (likely(ieee80211_is_data_qos(fc))) {
682 switch (ac) {
683 case IEEE80211_AC_BE:
684 return mplut_enabled ? 1 : 0;
685 case IEEE80211_AC_VI:
686 return mplut_enabled ? 2 : 3;
687 case IEEE80211_AC_VO:
688 return 3;
689 default:
690 return 0;
691 }
692 } else if (is_multicast_ether_addr(hdr->addr1)) {
693 return 3;
694 } else
695 return 0;
696 } else if (ieee80211_is_mgmt(fc)) {
697 return ieee80211_is_disassoc(fc) ? 0 : 3;
698 } else if (ieee80211_is_ctl(fc)) {
699 /* ignore cfend and cfendack frames as we never send those */
700 return 3;
701 }
702
703 return 0;
704}
705
706void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
707{
708 iwl_mvm_bt_coex_notif_handle(mvm);
709}
1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
27 *
28 * Contact Information:
29 * Intel Linux Wireless <linuxwifi@intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
34 * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65
66#include <linux/ieee80211.h>
67#include <linux/etherdevice.h>
68#include <net/mac80211.h>
69
70#include "fw-api-coex.h"
71#include "iwl-modparams.h"
72#include "mvm.h"
73#include "iwl-debug.h"
74
75/* 20MHz / 40MHz below / 40Mhz above*/
76static const __le64 iwl_ci_mask[][3] = {
77 /* dummy entry for channel 0 */
78 {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
79 {
80 cpu_to_le64(0x0000001FFFULL),
81 cpu_to_le64(0x0ULL),
82 cpu_to_le64(0x00007FFFFFULL),
83 },
84 {
85 cpu_to_le64(0x000000FFFFULL),
86 cpu_to_le64(0x0ULL),
87 cpu_to_le64(0x0003FFFFFFULL),
88 },
89 {
90 cpu_to_le64(0x000003FFFCULL),
91 cpu_to_le64(0x0ULL),
92 cpu_to_le64(0x000FFFFFFCULL),
93 },
94 {
95 cpu_to_le64(0x00001FFFE0ULL),
96 cpu_to_le64(0x0ULL),
97 cpu_to_le64(0x007FFFFFE0ULL),
98 },
99 {
100 cpu_to_le64(0x00007FFF80ULL),
101 cpu_to_le64(0x00007FFFFFULL),
102 cpu_to_le64(0x01FFFFFF80ULL),
103 },
104 {
105 cpu_to_le64(0x0003FFFC00ULL),
106 cpu_to_le64(0x0003FFFFFFULL),
107 cpu_to_le64(0x0FFFFFFC00ULL),
108 },
109 {
110 cpu_to_le64(0x000FFFF000ULL),
111 cpu_to_le64(0x000FFFFFFCULL),
112 cpu_to_le64(0x3FFFFFF000ULL),
113 },
114 {
115 cpu_to_le64(0x007FFF8000ULL),
116 cpu_to_le64(0x007FFFFFE0ULL),
117 cpu_to_le64(0xFFFFFF8000ULL),
118 },
119 {
120 cpu_to_le64(0x01FFFE0000ULL),
121 cpu_to_le64(0x01FFFFFF80ULL),
122 cpu_to_le64(0xFFFFFE0000ULL),
123 },
124 {
125 cpu_to_le64(0x0FFFF00000ULL),
126 cpu_to_le64(0x0FFFFFFC00ULL),
127 cpu_to_le64(0x0ULL),
128 },
129 {
130 cpu_to_le64(0x3FFFC00000ULL),
131 cpu_to_le64(0x3FFFFFF000ULL),
132 cpu_to_le64(0x0)
133 },
134 {
135 cpu_to_le64(0xFFFE000000ULL),
136 cpu_to_le64(0xFFFFFF8000ULL),
137 cpu_to_le64(0x0)
138 },
139 {
140 cpu_to_le64(0xFFF8000000ULL),
141 cpu_to_le64(0xFFFFFE0000ULL),
142 cpu_to_le64(0x0)
143 },
144 {
145 cpu_to_le64(0xFFC0000000ULL),
146 cpu_to_le64(0x0ULL),
147 cpu_to_le64(0x0ULL)
148 },
149};
150
151struct corunning_block_luts {
152 u8 range;
153 __le32 lut20[BT_COEX_CORUN_LUT_SIZE];
154};
155
156/*
157 * Ranges for the antenna coupling calibration / co-running block LUT:
158 * LUT0: [ 0, 12[
159 * LUT1: [12, 20[
160 * LUT2: [20, 21[
161 * LUT3: [21, 23[
162 * LUT4: [23, 27[
163 * LUT5: [27, 30[
164 * LUT6: [30, 32[
165 * LUT7: [32, 33[
166 * LUT8: [33, - [
167 */
168static const struct corunning_block_luts antenna_coupling_ranges[] = {
169 {
170 .range = 0,
171 .lut20 = {
172 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
173 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
174 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
175 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
176 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
177 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
178 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
179 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
180 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
181 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
182 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
183 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
184 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
185 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
186 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
187 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
188 },
189 },
190 {
191 .range = 12,
192 .lut20 = {
193 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
194 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
195 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
196 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
197 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
198 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
199 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
200 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
201 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
202 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
203 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
204 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
205 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
206 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
207 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
208 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
209 },
210 },
211 {
212 .range = 20,
213 .lut20 = {
214 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
215 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
216 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
217 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
218 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
219 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
220 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
221 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
222 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
223 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
224 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
225 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
226 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
227 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
228 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
229 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
230 },
231 },
232 {
233 .range = 21,
234 .lut20 = {
235 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
236 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
237 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
238 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
239 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
240 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
241 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
242 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
243 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
244 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
245 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
246 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
247 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
248 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
249 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
250 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
251 },
252 },
253 {
254 .range = 23,
255 .lut20 = {
256 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
257 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
258 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
259 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
260 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
261 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
262 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
263 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
264 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
265 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
266 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
267 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
268 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
269 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
270 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
271 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
272 },
273 },
274 {
275 .range = 27,
276 .lut20 = {
277 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
278 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
279 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
280 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
281 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
282 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
283 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
284 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
285 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
286 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
287 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
288 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
289 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
290 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
291 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
292 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
293 },
294 },
295 {
296 .range = 30,
297 .lut20 = {
298 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
299 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
300 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
301 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
302 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
303 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
304 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
305 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
306 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
307 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
308 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
309 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
310 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
311 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
312 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
313 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
314 },
315 },
316 {
317 .range = 32,
318 .lut20 = {
319 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
320 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
321 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
322 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
323 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
324 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
325 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
326 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
327 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
328 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
329 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
330 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
331 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
332 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
333 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
334 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
335 },
336 },
337 {
338 .range = 33,
339 .lut20 = {
340 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
341 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
342 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
343 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
344 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
345 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
346 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
347 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
348 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
349 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
350 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
351 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
352 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
353 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
354 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
355 cpu_to_le32(0x00000000), cpu_to_le32(0x00000000),
356 },
357 },
358};
359
360static enum iwl_bt_coex_lut_type
361iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
362{
363 struct ieee80211_chanctx_conf *chanctx_conf;
364 enum iwl_bt_coex_lut_type ret;
365 u16 phy_ctx_id;
366 u32 primary_ch_phy_id, secondary_ch_phy_id;
367
368 /*
369 * Checking that we hold mvm->mutex is a good idea, but the rate
370 * control can't acquire the mutex since it runs in Tx path.
371 * So this is racy in that case, but in the worst case, the AMPDU
372 * size limit will be wrong for a short time which is not a big
373 * issue.
374 */
375
376 rcu_read_lock();
377
378 chanctx_conf = rcu_dereference(vif->chanctx_conf);
379
380 if (!chanctx_conf ||
381 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
382 rcu_read_unlock();
383 return BT_COEX_INVALID_LUT;
384 }
385
386 ret = BT_COEX_TX_DIS_LUT;
387
388 if (mvm->cfg->bt_shared_single_ant) {
389 rcu_read_unlock();
390 return ret;
391 }
392
393 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
394 primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id);
395 secondary_ch_phy_id =
396 le32_to_cpu(mvm->last_bt_ci_cmd.secondary_ch_phy_id);
397
398 if (primary_ch_phy_id == phy_ctx_id)
399 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
400 else if (secondary_ch_phy_id == phy_ctx_id)
401 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
402 /* else - default = TX TX disallowed */
403
404 rcu_read_unlock();
405
406 return ret;
407}
408
409int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
410{
411 struct iwl_bt_coex_cmd bt_cmd = {};
412 u32 mode;
413
414 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
415 return iwl_send_bt_init_conf_old(mvm);
416
417 lockdep_assert_held(&mvm->mutex);
418
419 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
420 switch (mvm->bt_force_ant_mode) {
421 case BT_FORCE_ANT_BT:
422 mode = BT_COEX_BT;
423 break;
424 case BT_FORCE_ANT_WIFI:
425 mode = BT_COEX_WIFI;
426 break;
427 default:
428 WARN_ON(1);
429 mode = 0;
430 }
431
432 bt_cmd.mode = cpu_to_le32(mode);
433 goto send_cmd;
434 }
435
436 mode = iwlwifi_mod_params.bt_coex_active ? BT_COEX_NW : BT_COEX_DISABLE;
437 bt_cmd.mode = cpu_to_le32(mode);
438
439 if (IWL_MVM_BT_COEX_SYNC2SCO)
440 bt_cmd.enabled_modules |=
441 cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED);
442
443 if (iwl_mvm_bt_is_plcr_supported(mvm))
444 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_CORUN_ENABLED);
445
446 if (iwl_mvm_is_mplut_supported(mvm))
447 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED);
448
449 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET);
450
451send_cmd:
452 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
453 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
454
455 return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, 0, sizeof(bt_cmd), &bt_cmd);
456}
457
458static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
459 bool enable)
460{
461 struct iwl_bt_coex_reduced_txp_update_cmd cmd = {};
462 struct iwl_mvm_sta *mvmsta;
463 u32 value;
464 int ret;
465
466 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
467 if (!mvmsta)
468 return 0;
469
470 /* nothing to do */
471 if (mvmsta->bt_reduced_txpower == enable)
472 return 0;
473
474 value = mvmsta->sta_id;
475
476 if (enable)
477 value |= BT_REDUCED_TX_POWER_BIT;
478
479 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
480 enable ? "en" : "dis", sta_id);
481
482 cmd.reduced_txp = cpu_to_le32(value);
483 mvmsta->bt_reduced_txpower = enable;
484
485 ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP, CMD_ASYNC,
486 sizeof(cmd), &cmd);
487
488 return ret;
489}
490
491struct iwl_bt_iterator_data {
492 struct iwl_bt_coex_profile_notif *notif;
493 struct iwl_mvm *mvm;
494 struct ieee80211_chanctx_conf *primary;
495 struct ieee80211_chanctx_conf *secondary;
496 bool primary_ll;
497};
498
499static inline
500void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
501 struct ieee80211_vif *vif,
502 bool enable, int rssi)
503{
504 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
505
506 mvmvif->bf_data.last_bt_coex_event = rssi;
507 mvmvif->bf_data.bt_coex_max_thold =
508 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
509 mvmvif->bf_data.bt_coex_min_thold =
510 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
511}
512
513/* must be called under rcu_read_lock */
514static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
515 struct ieee80211_vif *vif)
516{
517 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
518 struct iwl_bt_iterator_data *data = _data;
519 struct iwl_mvm *mvm = data->mvm;
520 struct ieee80211_chanctx_conf *chanctx_conf;
521 /* default smps_mode is AUTOMATIC - only used for client modes */
522 enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC;
523 u32 bt_activity_grading;
524 int ave_rssi;
525
526 lockdep_assert_held(&mvm->mutex);
527
528 switch (vif->type) {
529 case NL80211_IFTYPE_STATION:
530 break;
531 case NL80211_IFTYPE_AP:
532 if (!mvmvif->ap_ibss_active)
533 return;
534 break;
535 default:
536 return;
537 }
538
539 chanctx_conf = rcu_dereference(vif->chanctx_conf);
540
541 /* If channel context is invalid or not on 2.4GHz .. */
542 if ((!chanctx_conf ||
543 chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
544 if (vif->type == NL80211_IFTYPE_STATION) {
545 /* ... relax constraints and disable rssi events */
546 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
547 smps_mode);
548 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
549 false);
550 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
551 }
552 return;
553 }
554
555 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
556 if (bt_activity_grading >= BT_HIGH_TRAFFIC)
557 smps_mode = IEEE80211_SMPS_STATIC;
558 else if (bt_activity_grading >= BT_LOW_TRAFFIC)
559 smps_mode = IEEE80211_SMPS_DYNAMIC;
560
561 /* relax SMPS constraints for next association */
562 if (!vif->bss_conf.assoc)
563 smps_mode = IEEE80211_SMPS_AUTOMATIC;
564
565 if (mvmvif->phy_ctxt &&
566 IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status,
567 mvmvif->phy_ctxt->id))
568 smps_mode = IEEE80211_SMPS_AUTOMATIC;
569
570 IWL_DEBUG_COEX(data->mvm,
571 "mac %d: bt_activity_grading %d smps_req %d\n",
572 mvmvif->id, bt_activity_grading, smps_mode);
573
574 if (vif->type == NL80211_IFTYPE_STATION)
575 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
576 smps_mode);
577
578 /* low latency is always primary */
579 if (iwl_mvm_vif_low_latency(mvmvif)) {
580 data->primary_ll = true;
581
582 data->secondary = data->primary;
583 data->primary = chanctx_conf;
584 }
585
586 if (vif->type == NL80211_IFTYPE_AP) {
587 if (!mvmvif->ap_ibss_active)
588 return;
589
590 if (chanctx_conf == data->primary)
591 return;
592
593 if (!data->primary_ll) {
594 /*
595 * downgrade the current primary no matter what its
596 * type is.
597 */
598 data->secondary = data->primary;
599 data->primary = chanctx_conf;
600 } else {
601 /* there is low latency vif - we will be secondary */
602 data->secondary = chanctx_conf;
603 }
604 return;
605 }
606
607 /*
608 * STA / P2P Client, try to be primary if first vif. If we are in low
609 * latency mode, we are already in primary and just don't do much
610 */
611 if (!data->primary || data->primary == chanctx_conf)
612 data->primary = chanctx_conf;
613 else if (!data->secondary)
614 /* if secondary is not NULL, it might be a GO */
615 data->secondary = chanctx_conf;
616
617 /*
618 * don't reduce the Tx power if one of these is true:
619 * we are in LOOSE
620 * single share antenna product
621 * BT is active
622 * we are associated
623 */
624 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
625 mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc ||
626 le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) {
627 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false);
628 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
629 return;
630 }
631
632 /* try to get the avg rssi from fw */
633 ave_rssi = mvmvif->bf_data.ave_beacon_signal;
634
635 /* if the RSSI isn't valid, fake it is very low */
636 if (!ave_rssi)
637 ave_rssi = -100;
638 if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
639 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true))
640 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
641 } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
642 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
643 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
644 }
645
646 /* Begin to monitor the RSSI: it may influence the reduced Tx power */
647 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
648}
649
650static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
651{
652 struct iwl_bt_iterator_data data = {
653 .mvm = mvm,
654 .notif = &mvm->last_bt_notif,
655 };
656 struct iwl_bt_coex_ci_cmd cmd = {};
657 u8 ci_bw_idx;
658
659 /* Ignore updates if we are in force mode */
660 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
661 return;
662
663 rcu_read_lock();
664 ieee80211_iterate_active_interfaces_atomic(
665 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
666 iwl_mvm_bt_notif_iterator, &data);
667
668 if (data.primary) {
669 struct ieee80211_chanctx_conf *chan = data.primary;
670 if (WARN_ON(!chan->def.chan)) {
671 rcu_read_unlock();
672 return;
673 }
674
675 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
676 ci_bw_idx = 0;
677 } else {
678 if (chan->def.center_freq1 >
679 chan->def.chan->center_freq)
680 ci_bw_idx = 2;
681 else
682 ci_bw_idx = 1;
683 }
684
685 cmd.bt_primary_ci =
686 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
687 cmd.primary_ch_phy_id =
688 cpu_to_le32(*((u16 *)data.primary->drv_priv));
689 }
690
691 if (data.secondary) {
692 struct ieee80211_chanctx_conf *chan = data.secondary;
693 if (WARN_ON(!data.secondary->def.chan)) {
694 rcu_read_unlock();
695 return;
696 }
697
698 if (chan->def.width < NL80211_CHAN_WIDTH_40) {
699 ci_bw_idx = 0;
700 } else {
701 if (chan->def.center_freq1 >
702 chan->def.chan->center_freq)
703 ci_bw_idx = 2;
704 else
705 ci_bw_idx = 1;
706 }
707
708 cmd.bt_secondary_ci =
709 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
710 cmd.secondary_ch_phy_id =
711 cpu_to_le32(*((u16 *)data.secondary->drv_priv));
712 }
713
714 rcu_read_unlock();
715
716 /* Don't spam the fw with the same command over and over */
717 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
718 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
719 sizeof(cmd), &cmd))
720 IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
721 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
722 }
723}
724
725void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
726 struct iwl_rx_cmd_buffer *rxb)
727{
728 struct iwl_rx_packet *pkt = rxb_addr(rxb);
729 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
730
731 if (!fw_has_api(&mvm->fw->ucode_capa,
732 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
733 iwl_mvm_rx_bt_coex_notif_old(mvm, rxb);
734 return;
735 }
736
737 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
738 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
739 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
740 le32_to_cpu(notif->primary_ch_lut));
741 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
742 le32_to_cpu(notif->secondary_ch_lut));
743 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
744 le32_to_cpu(notif->bt_activity_grading));
745
746 /* remember this notification for future use: rssi fluctuations */
747 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
748
749 iwl_mvm_bt_coex_notif_handle(mvm);
750}
751
752void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
753 enum ieee80211_rssi_event_data rssi_event)
754{
755 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
756 int ret;
757
758 if (!fw_has_api(&mvm->fw->ucode_capa,
759 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
760 iwl_mvm_bt_rssi_event_old(mvm, vif, rssi_event);
761 return;
762 }
763
764 lockdep_assert_held(&mvm->mutex);
765
766 /* Ignore updates if we are in force mode */
767 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
768 return;
769
770 /*
771 * Rssi update while not associated - can happen since the statistics
772 * are handled asynchronously
773 */
774 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
775 return;
776
777 /* No BT - reports should be disabled */
778 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF)
779 return;
780
781 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
782 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
783
784 /*
785 * Check if rssi is good enough for reduced Tx power, but not in loose
786 * scheme.
787 */
788 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
789 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
790 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
791 false);
792 else
793 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true);
794
795 if (ret)
796 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
797}
798
799#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000)
800#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
801
802u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
803 struct ieee80211_sta *sta)
804{
805 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
806 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
807 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
808 enum iwl_bt_coex_lut_type lut_type;
809
810 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
811 return iwl_mvm_coex_agg_time_limit_old(mvm, sta);
812
813 if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
814 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
815
816 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
817 BT_HIGH_TRAFFIC)
818 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
819
820 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
821
822 if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
823 return LINK_QUAL_AGG_TIME_LIMIT_DEF;
824
825 /* tight coex, high bt traffic, reduce AGG time limit */
826 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
827}
828
829bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
830 struct ieee80211_sta *sta)
831{
832 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
833 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
834 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt;
835 enum iwl_bt_coex_lut_type lut_type;
836
837 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
838 return iwl_mvm_bt_coex_is_mimo_allowed_old(mvm, sta);
839
840 if (IWL_COEX_IS_TTC_ON(mvm->last_bt_notif.ttc_rrc_status, phy_ctxt->id))
841 return true;
842
843 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
844 BT_HIGH_TRAFFIC)
845 return true;
846
847 /*
848 * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
849 * since BT is already killed.
850 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
851 * we Tx.
852 * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
853 */
854 lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
855 return lut_type != BT_COEX_LOOSE_LUT;
856}
857
858bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant)
859{
860 /* there is no other antenna, shared antenna is always available */
861 if (mvm->cfg->bt_shared_single_ant)
862 return true;
863
864 if (ant & mvm->cfg->non_shared_ant)
865 return true;
866
867 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
868 return iwl_mvm_bt_coex_is_shared_ant_avail_old(mvm);
869
870 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
871 BT_HIGH_TRAFFIC;
872}
873
874bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm)
875{
876 /* there is no other antenna, shared antenna is always available */
877 if (mvm->cfg->bt_shared_single_ant)
878 return true;
879
880 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
881 return iwl_mvm_bt_coex_is_shared_ant_avail_old(mvm);
882
883 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < BT_HIGH_TRAFFIC;
884}
885
886bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
887 enum ieee80211_band band)
888{
889 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
890
891 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_BT_COEX_SPLIT))
892 return iwl_mvm_bt_coex_is_tpc_allowed_old(mvm, band);
893
894 if (band != IEEE80211_BAND_2GHZ)
895 return false;
896
897 return bt_activity >= BT_LOW_TRAFFIC;
898}
899
900u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
901 struct ieee80211_tx_info *info, u8 ac)
902{
903 __le16 fc = hdr->frame_control;
904 bool mplut_enabled = iwl_mvm_is_mplut_supported(mvm);
905
906 if (info->band != IEEE80211_BAND_2GHZ)
907 return 0;
908
909 if (unlikely(mvm->bt_tx_prio))
910 return mvm->bt_tx_prio - 1;
911
912 if (likely(ieee80211_is_data(fc))) {
913 if (likely(ieee80211_is_data_qos(fc))) {
914 switch (ac) {
915 case IEEE80211_AC_BE:
916 return mplut_enabled ? 1 : 0;
917 case IEEE80211_AC_VI:
918 return mplut_enabled ? 2 : 3;
919 case IEEE80211_AC_VO:
920 return 3;
921 default:
922 return 0;
923 }
924 } else if (is_multicast_ether_addr(hdr->addr1)) {
925 return 3;
926 } else
927 return 0;
928 } else if (ieee80211_is_mgmt(fc)) {
929 return ieee80211_is_disassoc(fc) ? 0 : 3;
930 } else if (ieee80211_is_ctl(fc)) {
931 /* ignore cfend and cfendack frames as we never send those */
932 return 3;
933 }
934
935 return 0;
936}
937
938void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
939{
940 if (!fw_has_api(&mvm->fw->ucode_capa,
941 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
942 iwl_mvm_bt_coex_vif_change_old(mvm);
943 return;
944 }
945
946 iwl_mvm_bt_coex_notif_handle(mvm);
947}
948
949void iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
950 struct iwl_rx_cmd_buffer *rxb)
951{
952 struct iwl_rx_packet *pkt = rxb_addr(rxb);
953 u32 ant_isolation = le32_to_cpup((void *)pkt->data);
954 struct iwl_bt_coex_corun_lut_update_cmd cmd = {};
955 u8 __maybe_unused lower_bound, upper_bound;
956 u8 lut;
957
958 if (!fw_has_api(&mvm->fw->ucode_capa,
959 IWL_UCODE_TLV_API_BT_COEX_SPLIT)) {
960 iwl_mvm_rx_ant_coupling_notif_old(mvm, rxb);
961 return;
962 }
963
964 if (!iwl_mvm_bt_is_plcr_supported(mvm))
965 return;
966
967 lockdep_assert_held(&mvm->mutex);
968
969 /* Ignore updates if we are in force mode */
970 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
971 return;
972
973 if (ant_isolation == mvm->last_ant_isol)
974 return;
975
976 for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++)
977 if (ant_isolation < antenna_coupling_ranges[lut + 1].range)
978 break;
979
980 lower_bound = antenna_coupling_ranges[lut].range;
981
982 if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1)
983 upper_bound = antenna_coupling_ranges[lut + 1].range;
984 else
985 upper_bound = antenna_coupling_ranges[lut].range;
986
987 IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n",
988 ant_isolation, lower_bound, upper_bound, lut);
989
990 mvm->last_ant_isol = ant_isolation;
991
992 if (mvm->last_corun_lut == lut)
993 return;
994
995 mvm->last_corun_lut = lut;
996
997 /* For the moment, use the same LUT for 20GHz and 40GHz */
998 memcpy(&cmd.corun_lut20, antenna_coupling_ranges[lut].lut20,
999 sizeof(cmd.corun_lut20));
1000
1001 memcpy(&cmd.corun_lut40, antenna_coupling_ranges[lut].lut20,
1002 sizeof(cmd.corun_lut40));
1003
1004 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_CORUN_LUT, 0,
1005 sizeof(cmd), &cmd))
1006 IWL_ERR(mvm,
1007 "failed to send BT_COEX_UPDATE_CORUN_LUT command\n");
1008}