1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2013-2014, 2018-2020, 2022 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*/ 16 static 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 91 static enum iwl_bt_coex_lut_type 92 iwl_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 if (mvm->cfg->bt_shared_single_ant) { 120 rcu_read_unlock(); 121 return ret; 122 } 123 124 phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); 125 primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id); 126 secondary_ch_phy_id = 127 le32_to_cpu(mvm->last_bt_ci_cmd.secondary_ch_phy_id); 128 129 if (primary_ch_phy_id == phy_ctx_id) 130 ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut); 131 else if (secondary_ch_phy_id == phy_ctx_id) 132 ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut); 133 /* else - default = TX TX disallowed */ 134 135 rcu_read_unlock(); 136 137 return ret; 138 } 139 140 int iwl_mvm_send_bt_init_conf(struct iwl_mvm *mvm) 141 { 142 struct iwl_bt_coex_cmd bt_cmd = {}; 143 u32 mode; 144 145 lockdep_assert_held(&mvm->mutex); 146 147 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) { 148 switch (mvm->bt_force_ant_mode) { 149 case BT_FORCE_ANT_BT: 150 mode = BT_COEX_BT; 151 break; 152 case BT_FORCE_ANT_WIFI: 153 mode = BT_COEX_WIFI; 154 break; 155 default: 156 WARN_ON(1); 157 mode = 0; 158 } 159 160 bt_cmd.mode = cpu_to_le32(mode); 161 goto send_cmd; 162 } 163 164 bt_cmd.mode = cpu_to_le32(BT_COEX_NW); 165 166 if (IWL_MVM_BT_COEX_SYNC2SCO) 167 bt_cmd.enabled_modules |= 168 cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED); 169 170 if (iwl_mvm_is_mplut_supported(mvm)) 171 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED); 172 173 bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET); 174 175 send_cmd: 176 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); 177 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); 178 179 return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, 0, sizeof(bt_cmd), &bt_cmd); 180 } 181 182 static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, 183 bool enable) 184 { 185 struct iwl_bt_coex_reduced_txp_update_cmd cmd = {}; 186 struct iwl_mvm_sta *mvmsta; 187 u32 value; 188 189 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); 190 if (!mvmsta) 191 return 0; 192 193 /* nothing to do */ 194 if (mvmsta->bt_reduced_txpower == enable) 195 return 0; 196 197 value = mvmsta->sta_id; 198 199 if (enable) 200 value |= BT_REDUCED_TX_POWER_BIT; 201 202 IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", 203 enable ? "en" : "dis", sta_id); 204 205 cmd.reduced_txp = cpu_to_le32(value); 206 mvmsta->bt_reduced_txpower = enable; 207 208 return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP, 209 CMD_ASYNC, sizeof(cmd), &cmd); 210 } 211 212 struct iwl_bt_iterator_data { 213 struct iwl_bt_coex_profile_notif *notif; 214 struct iwl_mvm *mvm; 215 struct ieee80211_chanctx_conf *primary; 216 struct ieee80211_chanctx_conf *secondary; 217 bool primary_ll; 218 u8 primary_load; 219 u8 secondary_load; 220 }; 221 222 static inline 223 void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, 224 struct ieee80211_vif *vif, 225 bool enable, int rssi) 226 { 227 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 228 229 mvmvif->bf_data.last_bt_coex_event = rssi; 230 mvmvif->bf_data.bt_coex_max_thold = 231 enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0; 232 mvmvif->bf_data.bt_coex_min_thold = 233 enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0; 234 } 235 236 #define MVM_COEX_TCM_PERIOD (HZ * 10) 237 238 static void iwl_mvm_bt_coex_tcm_based_ci(struct iwl_mvm *mvm, 239 struct iwl_bt_iterator_data *data) 240 { 241 unsigned long now = jiffies; 242 243 if (!time_after(now, mvm->bt_coex_last_tcm_ts + MVM_COEX_TCM_PERIOD)) 244 return; 245 246 mvm->bt_coex_last_tcm_ts = now; 247 248 /* We assume here that we don't have more than 2 vifs on 2.4GHz */ 249 250 /* if the primary is low latency, it will stay primary */ 251 if (data->primary_ll) 252 return; 253 254 if (data->primary_load >= data->secondary_load) 255 return; 256 257 swap(data->primary, data->secondary); 258 } 259 260 /* must be called under rcu_read_lock */ 261 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, 262 struct ieee80211_vif *vif) 263 { 264 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 265 struct iwl_bt_iterator_data *data = _data; 266 struct iwl_mvm *mvm = data->mvm; 267 struct ieee80211_chanctx_conf *chanctx_conf; 268 /* default smps_mode is AUTOMATIC - only used for client modes */ 269 enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC; 270 u32 bt_activity_grading, min_ag_for_static_smps; 271 int ave_rssi; 272 273 lockdep_assert_held(&mvm->mutex); 274 275 switch (vif->type) { 276 case NL80211_IFTYPE_STATION: 277 break; 278 case NL80211_IFTYPE_AP: 279 if (!mvmvif->ap_ibss_active) 280 return; 281 break; 282 default: 283 return; 284 } 285 286 chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf); 287 288 /* If channel context is invalid or not on 2.4GHz .. */ 289 if ((!chanctx_conf || 290 chanctx_conf->def.chan->band != NL80211_BAND_2GHZ)) { 291 if (vif->type == NL80211_IFTYPE_STATION) { 292 /* ... relax constraints and disable rssi events */ 293 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 294 smps_mode); 295 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, 296 false); 297 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 298 } 299 return; 300 } 301 302 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2)) 303 min_ag_for_static_smps = BT_VERY_HIGH_TRAFFIC; 304 else 305 min_ag_for_static_smps = BT_HIGH_TRAFFIC; 306 307 bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); 308 if (bt_activity_grading >= min_ag_for_static_smps) 309 smps_mode = IEEE80211_SMPS_STATIC; 310 else if (bt_activity_grading >= BT_LOW_TRAFFIC) 311 smps_mode = IEEE80211_SMPS_DYNAMIC; 312 313 /* relax SMPS constraints for next association */ 314 if (!vif->cfg.assoc) 315 smps_mode = IEEE80211_SMPS_AUTOMATIC; 316 317 if (mvmvif->phy_ctxt && 318 (mvm->last_bt_notif.rrc_status & BIT(mvmvif->phy_ctxt->id))) 319 smps_mode = IEEE80211_SMPS_AUTOMATIC; 320 321 IWL_DEBUG_COEX(data->mvm, 322 "mac %d: bt_activity_grading %d smps_req %d\n", 323 mvmvif->id, bt_activity_grading, smps_mode); 324 325 if (vif->type == NL80211_IFTYPE_STATION) 326 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, 327 smps_mode); 328 329 /* low latency is always primary */ 330 if (iwl_mvm_vif_low_latency(mvmvif)) { 331 data->primary_ll = true; 332 333 data->secondary = data->primary; 334 data->primary = chanctx_conf; 335 } 336 337 if (vif->type == NL80211_IFTYPE_AP) { 338 if (!mvmvif->ap_ibss_active) 339 return; 340 341 if (chanctx_conf == data->primary) 342 return; 343 344 if (!data->primary_ll) { 345 /* 346 * downgrade the current primary no matter what its 347 * type is. 348 */ 349 data->secondary = data->primary; 350 data->primary = chanctx_conf; 351 } else { 352 /* there is low latency vif - we will be secondary */ 353 data->secondary = chanctx_conf; 354 } 355 356 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 if (data->primary == chanctx_conf) 374 data->primary_load = mvm->tcm.result.load[mvmvif->id]; 375 else if (data->secondary == chanctx_conf) 376 data->secondary_load = mvm->tcm.result.load[mvmvif->id]; 377 /* 378 * don't reduce the Tx power if one of these is true: 379 * we are in LOOSE 380 * single share antenna product 381 * BT is inactive 382 * we are not associated 383 */ 384 if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || 385 mvm->cfg->bt_shared_single_ant || !vif->cfg.assoc || 386 le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) { 387 iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false); 388 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); 389 return; 390 } 391 392 /* try to get the avg rssi from fw */ 393 ave_rssi = mvmvif->bf_data.ave_beacon_signal; 394 395 /* if the RSSI isn't valid, fake it is very low */ 396 if (!ave_rssi) 397 ave_rssi = -100; 398 if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) { 399 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) 400 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 401 } else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) { 402 if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) 403 IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); 404 } 405 406 /* Begin to monitor the RSSI: it may influence the reduced Tx power */ 407 iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); 408 } 409 410 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) 411 { 412 struct iwl_bt_iterator_data data = { 413 .mvm = mvm, 414 .notif = &mvm->last_bt_notif, 415 }; 416 struct iwl_bt_coex_ci_cmd cmd = {}; 417 u8 ci_bw_idx; 418 419 /* Ignore updates if we are in force mode */ 420 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) 421 return; 422 423 rcu_read_lock(); 424 ieee80211_iterate_active_interfaces_atomic( 425 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 426 iwl_mvm_bt_notif_iterator, &data); 427 428 iwl_mvm_bt_coex_tcm_based_ci(mvm, &data); 429 430 if (data.primary) { 431 struct ieee80211_chanctx_conf *chan = data.primary; 432 if (WARN_ON(!chan->def.chan)) { 433 rcu_read_unlock(); 434 return; 435 } 436 437 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 438 ci_bw_idx = 0; 439 } else { 440 if (chan->def.center_freq1 > 441 chan->def.chan->center_freq) 442 ci_bw_idx = 2; 443 else 444 ci_bw_idx = 1; 445 } 446 447 cmd.bt_primary_ci = 448 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 449 cmd.primary_ch_phy_id = 450 cpu_to_le32(*((u16 *)data.primary->drv_priv)); 451 } 452 453 if (data.secondary) { 454 struct ieee80211_chanctx_conf *chan = data.secondary; 455 if (WARN_ON(!data.secondary->def.chan)) { 456 rcu_read_unlock(); 457 return; 458 } 459 460 if (chan->def.width < NL80211_CHAN_WIDTH_40) { 461 ci_bw_idx = 0; 462 } else { 463 if (chan->def.center_freq1 > 464 chan->def.chan->center_freq) 465 ci_bw_idx = 2; 466 else 467 ci_bw_idx = 1; 468 } 469 470 cmd.bt_secondary_ci = 471 iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; 472 cmd.secondary_ch_phy_id = 473 cpu_to_le32(*((u16 *)data.secondary->drv_priv)); 474 } 475 476 rcu_read_unlock(); 477 478 /* Don't spam the fw with the same command over and over */ 479 if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { 480 if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0, 481 sizeof(cmd), &cmd)) 482 IWL_ERR(mvm, "Failed to send BT_CI cmd\n"); 483 memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); 484 } 485 } 486 487 void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, 488 struct iwl_rx_cmd_buffer *rxb) 489 { 490 struct iwl_rx_packet *pkt = rxb_addr(rxb); 491 struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; 492 493 IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); 494 IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); 495 IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", 496 le32_to_cpu(notif->primary_ch_lut)); 497 IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", 498 le32_to_cpu(notif->secondary_ch_lut)); 499 IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", 500 le32_to_cpu(notif->bt_activity_grading)); 501 502 /* remember this notification for future use: rssi fluctuations */ 503 memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); 504 505 iwl_mvm_bt_coex_notif_handle(mvm); 506 } 507 508 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 509 enum ieee80211_rssi_event_data rssi_event) 510 { 511 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 512 int ret; 513 514 lockdep_assert_held(&mvm->mutex); 515 516 /* Ignore updates if we are in force mode */ 517 if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) 518 return; 519 520 /* 521 * Rssi update while not associated - can happen since the statistics 522 * are handled asynchronously 523 */ 524 if (mvmvif->ap_sta_id == IWL_MVM_INVALID_STA) 525 return; 526 527 /* No BT - reports should be disabled */ 528 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) 529 return; 530 531 IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, 532 rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); 533 534 /* 535 * Check if rssi is good enough for reduced Tx power, but not in loose 536 * scheme. 537 */ 538 if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || 539 iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) 540 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, 541 false); 542 else 543 ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); 544 545 if (ret) 546 IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); 547 } 548 549 #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) 550 #define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) 551 552 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm, 553 struct ieee80211_sta *sta) 554 { 555 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 556 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif); 557 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt; 558 enum iwl_bt_coex_lut_type lut_type; 559 560 if (mvm->last_bt_notif.ttc_status & BIT(phy_ctxt->id)) 561 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 562 563 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 564 BT_HIGH_TRAFFIC) 565 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 566 567 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 568 569 if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT) 570 return LINK_QUAL_AGG_TIME_LIMIT_DEF; 571 572 /* tight coex, high bt traffic, reduce AGG time limit */ 573 return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; 574 } 575 576 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, 577 struct ieee80211_sta *sta) 578 { 579 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 580 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif); 581 struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->phy_ctxt; 582 enum iwl_bt_coex_lut_type lut_type; 583 584 if (mvm->last_bt_notif.ttc_status & BIT(phy_ctxt->id)) 585 return true; 586 587 if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 588 BT_HIGH_TRAFFIC) 589 return true; 590 591 /* 592 * In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas 593 * since BT is already killed. 594 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while 595 * we Tx. 596 * When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO. 597 */ 598 lut_type = iwl_get_coex_type(mvm, mvmsta->vif); 599 return lut_type != BT_COEX_LOOSE_LUT; 600 } 601 602 bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant) 603 { 604 /* there is no other antenna, shared antenna is always available */ 605 if (mvm->cfg->bt_shared_single_ant) 606 return true; 607 608 if (ant & mvm->cfg->non_shared_ant) 609 return true; 610 611 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < 612 BT_HIGH_TRAFFIC; 613 } 614 615 bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm) 616 { 617 /* there is no other antenna, shared antenna is always available */ 618 if (mvm->cfg->bt_shared_single_ant) 619 return true; 620 621 return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < BT_HIGH_TRAFFIC; 622 } 623 624 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm, 625 enum nl80211_band band) 626 { 627 u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading); 628 629 if (band != NL80211_BAND_2GHZ) 630 return false; 631 632 return bt_activity >= BT_LOW_TRAFFIC; 633 } 634 635 u8 iwl_mvm_bt_coex_get_single_ant_msk(struct iwl_mvm *mvm, u8 enabled_ants) 636 { 637 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2) && 638 (mvm->cfg->non_shared_ant & enabled_ants)) 639 return mvm->cfg->non_shared_ant; 640 641 return first_antenna(enabled_ants); 642 } 643 644 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr, 645 struct ieee80211_tx_info *info, u8 ac) 646 { 647 __le16 fc = hdr->frame_control; 648 bool mplut_enabled = iwl_mvm_is_mplut_supported(mvm); 649 650 if (info->band != NL80211_BAND_2GHZ) 651 return 0; 652 653 if (unlikely(mvm->bt_tx_prio)) 654 return mvm->bt_tx_prio - 1; 655 656 if (likely(ieee80211_is_data(fc))) { 657 if (likely(ieee80211_is_data_qos(fc))) { 658 switch (ac) { 659 case IEEE80211_AC_BE: 660 return mplut_enabled ? 1 : 0; 661 case IEEE80211_AC_VI: 662 return mplut_enabled ? 2 : 3; 663 case IEEE80211_AC_VO: 664 return 3; 665 default: 666 return 0; 667 } 668 } else if (is_multicast_ether_addr(hdr->addr1)) { 669 return 3; 670 } else 671 return 0; 672 } else if (ieee80211_is_mgmt(fc)) { 673 return ieee80211_is_disassoc(fc) ? 0 : 3; 674 } else if (ieee80211_is_ctl(fc)) { 675 /* ignore cfend and cfendack frames as we never send those */ 676 return 3; 677 } 678 679 return 0; 680 } 681 682 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) 683 { 684 iwl_mvm_bt_coex_notif_handle(mvm); 685 } 686