724 lines
19 KiB
C
724 lines
19 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
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/*
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* Copyright (C) 2013-2014, 2018-2020, 2022 Intel Corporation
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* Copyright (C) 2013-2015 Intel Mobile Communications GmbH
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*/
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#include <linux/ieee80211.h>
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#include <linux/etherdevice.h>
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#include <net/mac80211.h>
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#include "fw/api/coex.h"
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#include "iwl-modparams.h"
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#include "mvm.h"
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#include "iwl-debug.h"
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/* 20MHz / 40MHz below / 40Mhz above*/
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static const __le64 iwl_ci_mask[][3] = {
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/* dummy entry for channel 0 */
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{cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
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{
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cpu_to_le64(0x0000001FFFULL),
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cpu_to_le64(0x0ULL),
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cpu_to_le64(0x00007FFFFFULL),
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},
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{
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cpu_to_le64(0x000000FFFFULL),
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cpu_to_le64(0x0ULL),
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cpu_to_le64(0x0003FFFFFFULL),
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},
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{
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cpu_to_le64(0x000003FFFCULL),
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cpu_to_le64(0x0ULL),
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cpu_to_le64(0x000FFFFFFCULL),
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},
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{
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cpu_to_le64(0x00001FFFE0ULL),
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cpu_to_le64(0x0ULL),
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cpu_to_le64(0x007FFFFFE0ULL),
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},
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{
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cpu_to_le64(0x00007FFF80ULL),
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cpu_to_le64(0x00007FFFFFULL),
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cpu_to_le64(0x01FFFFFF80ULL),
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},
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{
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cpu_to_le64(0x0003FFFC00ULL),
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cpu_to_le64(0x0003FFFFFFULL),
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cpu_to_le64(0x0FFFFFFC00ULL),
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},
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{
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cpu_to_le64(0x000FFFF000ULL),
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cpu_to_le64(0x000FFFFFFCULL),
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cpu_to_le64(0x3FFFFFF000ULL),
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},
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{
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cpu_to_le64(0x007FFF8000ULL),
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cpu_to_le64(0x007FFFFFE0ULL),
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cpu_to_le64(0xFFFFFF8000ULL),
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},
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{
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cpu_to_le64(0x01FFFE0000ULL),
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cpu_to_le64(0x01FFFFFF80ULL),
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cpu_to_le64(0xFFFFFE0000ULL),
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},
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{
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cpu_to_le64(0x0FFFF00000ULL),
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cpu_to_le64(0x0FFFFFFC00ULL),
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cpu_to_le64(0x0ULL),
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},
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{
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cpu_to_le64(0x3FFFC00000ULL),
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cpu_to_le64(0x3FFFFFF000ULL),
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cpu_to_le64(0x0)
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},
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{
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cpu_to_le64(0xFFFE000000ULL),
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cpu_to_le64(0xFFFFFF8000ULL),
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cpu_to_le64(0x0)
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},
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{
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cpu_to_le64(0xFFF8000000ULL),
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cpu_to_le64(0xFFFFFE0000ULL),
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cpu_to_le64(0x0)
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},
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{
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cpu_to_le64(0xFE00000000ULL),
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cpu_to_le64(0x0ULL),
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cpu_to_le64(0x0ULL)
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},
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};
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static enum iwl_bt_coex_lut_type
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iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
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{
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struct ieee80211_chanctx_conf *chanctx_conf;
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enum iwl_bt_coex_lut_type ret;
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u16 phy_ctx_id;
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u32 primary_ch_phy_id, secondary_ch_phy_id;
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/*
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* Checking that we hold mvm->mutex is a good idea, but the rate
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* control can't acquire the mutex since it runs in Tx path.
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* So this is racy in that case, but in the worst case, the AMPDU
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* size limit will be wrong for a short time which is not a big
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* issue.
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*/
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rcu_read_lock();
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chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf);
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if (!chanctx_conf ||
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chanctx_conf->def.chan->band != NL80211_BAND_2GHZ) {
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rcu_read_unlock();
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return BT_COEX_INVALID_LUT;
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}
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ret = BT_COEX_TX_DIS_LUT;
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if (mvm->cfg->bt_shared_single_ant) {
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rcu_read_unlock();
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return ret;
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}
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phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
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primary_ch_phy_id = le32_to_cpu(mvm->last_bt_ci_cmd.primary_ch_phy_id);
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secondary_ch_phy_id =
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le32_to_cpu(mvm->last_bt_ci_cmd.secondary_ch_phy_id);
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if (primary_ch_phy_id == phy_ctx_id)
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ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
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else if (secondary_ch_phy_id == phy_ctx_id)
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ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
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/* else - default = TX TX disallowed */
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rcu_read_unlock();
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return ret;
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}
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int iwl_mvm_send_bt_init_conf(struct iwl_mvm *mvm)
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{
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struct iwl_bt_coex_cmd bt_cmd = {};
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u32 mode;
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lockdep_assert_held(&mvm->mutex);
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if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS)) {
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switch (mvm->bt_force_ant_mode) {
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case BT_FORCE_ANT_BT:
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mode = BT_COEX_BT;
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break;
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case BT_FORCE_ANT_WIFI:
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mode = BT_COEX_WIFI;
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break;
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default:
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WARN_ON(1);
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mode = 0;
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}
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bt_cmd.mode = cpu_to_le32(mode);
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goto send_cmd;
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}
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bt_cmd.mode = cpu_to_le32(BT_COEX_NW);
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if (IWL_MVM_BT_COEX_SYNC2SCO)
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bt_cmd.enabled_modules |=
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cpu_to_le32(BT_COEX_SYNC2SCO_ENABLED);
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if (iwl_mvm_is_mplut_supported(mvm))
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bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_MPLUT_ENABLED);
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bt_cmd.enabled_modules |= cpu_to_le32(BT_COEX_HIGH_BAND_RET);
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send_cmd:
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memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
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memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
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return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, 0, sizeof(bt_cmd), &bt_cmd);
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}
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static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
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bool enable)
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{
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struct iwl_bt_coex_reduced_txp_update_cmd cmd = {};
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struct iwl_mvm_sta *mvmsta;
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u32 value;
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mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id);
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if (!mvmsta)
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return 0;
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/* nothing to do */
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if (mvmsta->bt_reduced_txpower == enable)
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return 0;
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value = mvmsta->deflink.sta_id;
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if (enable)
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value |= BT_REDUCED_TX_POWER_BIT;
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IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n",
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enable ? "en" : "dis", sta_id);
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cmd.reduced_txp = cpu_to_le32(value);
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mvmsta->bt_reduced_txpower = enable;
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return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_UPDATE_REDUCED_TXP,
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CMD_ASYNC, sizeof(cmd), &cmd);
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}
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struct iwl_bt_iterator_data {
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struct iwl_bt_coex_profile_notif *notif;
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struct iwl_mvm *mvm;
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struct ieee80211_chanctx_conf *primary;
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struct ieee80211_chanctx_conf *secondary;
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bool primary_ll;
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u8 primary_load;
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u8 secondary_load;
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};
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static inline
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void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
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struct ieee80211_vif *vif,
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bool enable, int rssi)
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{
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
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mvmvif->bf_data.last_bt_coex_event = rssi;
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mvmvif->bf_data.bt_coex_max_thold =
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enable ? -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH : 0;
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mvmvif->bf_data.bt_coex_min_thold =
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enable ? -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH : 0;
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}
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#define MVM_COEX_TCM_PERIOD (HZ * 10)
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static void iwl_mvm_bt_coex_tcm_based_ci(struct iwl_mvm *mvm,
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struct iwl_bt_iterator_data *data)
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{
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unsigned long now = jiffies;
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if (!time_after(now, mvm->bt_coex_last_tcm_ts + MVM_COEX_TCM_PERIOD))
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return;
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mvm->bt_coex_last_tcm_ts = now;
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/* We assume here that we don't have more than 2 vifs on 2.4GHz */
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/* if the primary is low latency, it will stay primary */
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if (data->primary_ll)
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return;
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if (data->primary_load >= data->secondary_load)
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return;
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swap(data->primary, data->secondary);
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}
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static void iwl_mvm_bt_notif_per_link(struct iwl_mvm *mvm,
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struct ieee80211_vif *vif,
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struct iwl_bt_iterator_data *data,
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unsigned int link_id)
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{
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/* default smps_mode is AUTOMATIC - only used for client modes */
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enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_AUTOMATIC;
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
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u32 bt_activity_grading, min_ag_for_static_smps;
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struct ieee80211_chanctx_conf *chanctx_conf;
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struct iwl_mvm_vif_link_info *link_info;
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struct ieee80211_bss_conf *link_conf;
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int ave_rssi;
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lockdep_assert_held(&mvm->mutex);
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link_info = mvmvif->link[link_id];
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if (!link_info)
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return;
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link_conf = rcu_dereference(vif->link_conf[link_id]);
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/* This can happen due to races: if we receive the notification
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* and have the mutex held, while mac80211 is stuck on our mutex
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* in the middle of removing the link.
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*/
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if (!link_conf)
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return;
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chanctx_conf = rcu_dereference(link_conf->chanctx_conf);
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/* If channel context is invalid or not on 2.4GHz .. */
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if ((!chanctx_conf ||
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chanctx_conf->def.chan->band != NL80211_BAND_2GHZ)) {
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if (vif->type == NL80211_IFTYPE_STATION) {
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/* ... relax constraints and disable rssi events */
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iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
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smps_mode, link_id);
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iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id,
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false);
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/* FIXME: should this be per link? */
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iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
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}
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return;
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}
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if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2))
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min_ag_for_static_smps = BT_VERY_HIGH_TRAFFIC;
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else
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min_ag_for_static_smps = BT_HIGH_TRAFFIC;
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bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading);
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if (bt_activity_grading >= min_ag_for_static_smps)
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smps_mode = IEEE80211_SMPS_STATIC;
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else if (bt_activity_grading >= BT_LOW_TRAFFIC)
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smps_mode = IEEE80211_SMPS_DYNAMIC;
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/* relax SMPS constraints for next association */
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if (!vif->cfg.assoc)
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smps_mode = IEEE80211_SMPS_AUTOMATIC;
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if (link_info->phy_ctxt &&
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(mvm->last_bt_notif.rrc_status & BIT(link_info->phy_ctxt->id)))
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smps_mode = IEEE80211_SMPS_AUTOMATIC;
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IWL_DEBUG_COEX(data->mvm,
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"mac %d link %d: bt_activity_grading %d smps_req %d\n",
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mvmvif->id, link_info->fw_link_id,
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bt_activity_grading, smps_mode);
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if (vif->type == NL80211_IFTYPE_STATION)
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iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
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smps_mode, link_id);
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/* low latency is always primary */
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if (iwl_mvm_vif_low_latency(mvmvif)) {
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data->primary_ll = true;
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data->secondary = data->primary;
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data->primary = chanctx_conf;
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}
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if (vif->type == NL80211_IFTYPE_AP) {
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if (!mvmvif->ap_ibss_active)
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return;
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if (chanctx_conf == data->primary)
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return;
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if (!data->primary_ll) {
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/*
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* downgrade the current primary no matter what its
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* type is.
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*/
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data->secondary = data->primary;
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data->primary = chanctx_conf;
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} else {
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/* there is low latency vif - we will be secondary */
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data->secondary = chanctx_conf;
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}
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/* FIXME: TCM load per interface? or need something per link? */
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if (data->primary == chanctx_conf)
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data->primary_load = mvm->tcm.result.load[mvmvif->id];
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else if (data->secondary == chanctx_conf)
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data->secondary_load = mvm->tcm.result.load[mvmvif->id];
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return;
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}
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/*
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* STA / P2P Client, try to be primary if first vif. If we are in low
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* latency mode, we are already in primary and just don't do much
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*/
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if (!data->primary || data->primary == chanctx_conf)
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data->primary = chanctx_conf;
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else if (!data->secondary)
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/* if secondary is not NULL, it might be a GO */
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data->secondary = chanctx_conf;
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/* FIXME: TCM load per interface? or need something per link? */
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if (data->primary == chanctx_conf)
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data->primary_load = mvm->tcm.result.load[mvmvif->id];
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else if (data->secondary == chanctx_conf)
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data->secondary_load = mvm->tcm.result.load[mvmvif->id];
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/*
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* don't reduce the Tx power if one of these is true:
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* we are in LOOSE
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* single share antenna product
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* BT is inactive
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* we are not associated
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*/
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if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
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mvm->cfg->bt_shared_single_ant || !vif->cfg.assoc ||
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le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF) {
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iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id, false);
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/* FIXME: should this be per link? */
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iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
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return;
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}
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/* try to get the avg rssi from fw */
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ave_rssi = mvmvif->bf_data.ave_beacon_signal;
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/* if the RSSI isn't valid, fake it is very low */
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if (!ave_rssi)
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ave_rssi = -100;
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if (ave_rssi > -IWL_MVM_BT_COEX_EN_RED_TXP_THRESH) {
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if (iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id,
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true))
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IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
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} else if (ave_rssi < -IWL_MVM_BT_COEX_DIS_RED_TXP_THRESH) {
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if (iwl_mvm_bt_coex_reduced_txp(mvm, link_info->ap_sta_id,
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false))
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IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
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}
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/* Begin to monitor the RSSI: it may influence the reduced Tx power */
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iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
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}
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/* must be called under rcu_read_lock */
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static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
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struct ieee80211_vif *vif)
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{
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struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
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struct iwl_bt_iterator_data *data = _data;
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struct iwl_mvm *mvm = data->mvm;
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unsigned int link_id;
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lockdep_assert_held(&mvm->mutex);
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switch (vif->type) {
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case NL80211_IFTYPE_STATION:
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break;
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case NL80211_IFTYPE_AP:
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if (!mvmvif->ap_ibss_active)
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return;
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break;
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default:
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return;
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}
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for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++)
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iwl_mvm_bt_notif_per_link(mvm, vif, data, link_id);
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}
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static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
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{
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struct iwl_bt_iterator_data data = {
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.mvm = mvm,
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.notif = &mvm->last_bt_notif,
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};
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struct iwl_bt_coex_ci_cmd cmd = {};
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u8 ci_bw_idx;
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/* Ignore updates if we are in force mode */
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if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
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return;
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rcu_read_lock();
|
|
ieee80211_iterate_active_interfaces_atomic(
|
|
mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
|
|
iwl_mvm_bt_notif_iterator, &data);
|
|
|
|
iwl_mvm_bt_coex_tcm_based_ci(mvm, &data);
|
|
|
|
if (data.primary) {
|
|
struct ieee80211_chanctx_conf *chan = data.primary;
|
|
if (WARN_ON(!chan->def.chan)) {
|
|
rcu_read_unlock();
|
|
return;
|
|
}
|
|
|
|
if (chan->def.width < NL80211_CHAN_WIDTH_40) {
|
|
ci_bw_idx = 0;
|
|
} else {
|
|
if (chan->def.center_freq1 >
|
|
chan->def.chan->center_freq)
|
|
ci_bw_idx = 2;
|
|
else
|
|
ci_bw_idx = 1;
|
|
}
|
|
|
|
cmd.bt_primary_ci =
|
|
iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
|
|
cmd.primary_ch_phy_id =
|
|
cpu_to_le32(*((u16 *)data.primary->drv_priv));
|
|
}
|
|
|
|
if (data.secondary) {
|
|
struct ieee80211_chanctx_conf *chan = data.secondary;
|
|
if (WARN_ON(!data.secondary->def.chan)) {
|
|
rcu_read_unlock();
|
|
return;
|
|
}
|
|
|
|
if (chan->def.width < NL80211_CHAN_WIDTH_40) {
|
|
ci_bw_idx = 0;
|
|
} else {
|
|
if (chan->def.center_freq1 >
|
|
chan->def.chan->center_freq)
|
|
ci_bw_idx = 2;
|
|
else
|
|
ci_bw_idx = 1;
|
|
}
|
|
|
|
cmd.bt_secondary_ci =
|
|
iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
|
|
cmd.secondary_ch_phy_id =
|
|
cpu_to_le32(*((u16 *)data.secondary->drv_priv));
|
|
}
|
|
|
|
rcu_read_unlock();
|
|
|
|
/* Don't spam the fw with the same command over and over */
|
|
if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
|
|
if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0,
|
|
sizeof(cmd), &cmd))
|
|
IWL_ERR(mvm, "Failed to send BT_CI cmd\n");
|
|
memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
|
|
}
|
|
}
|
|
|
|
void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
|
|
struct iwl_rx_cmd_buffer *rxb)
|
|
{
|
|
struct iwl_rx_packet *pkt = rxb_addr(rxb);
|
|
struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data;
|
|
|
|
IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
|
|
IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
|
|
IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
|
|
le32_to_cpu(notif->primary_ch_lut));
|
|
IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
|
|
le32_to_cpu(notif->secondary_ch_lut));
|
|
IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
|
|
le32_to_cpu(notif->bt_activity_grading));
|
|
|
|
/* remember this notification for future use: rssi fluctuations */
|
|
memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
|
|
|
|
iwl_mvm_bt_coex_notif_handle(mvm);
|
|
}
|
|
|
|
void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
|
|
enum ieee80211_rssi_event_data rssi_event)
|
|
{
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
|
|
int ret;
|
|
|
|
lockdep_assert_held(&mvm->mutex);
|
|
|
|
/* Ignore updates if we are in force mode */
|
|
if (unlikely(mvm->bt_force_ant_mode != BT_FORCE_ANT_DIS))
|
|
return;
|
|
|
|
/*
|
|
* Rssi update while not associated - can happen since the statistics
|
|
* are handled asynchronously
|
|
*/
|
|
if (mvmvif->deflink.ap_sta_id == IWL_MVM_INVALID_STA)
|
|
return;
|
|
|
|
/* No BT - reports should be disabled */
|
|
if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF)
|
|
return;
|
|
|
|
IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
|
|
rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
|
|
|
|
/*
|
|
* Check if rssi is good enough for reduced Tx power, but not in loose
|
|
* scheme.
|
|
*/
|
|
if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
|
|
iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
|
|
ret = iwl_mvm_bt_coex_reduced_txp(mvm,
|
|
mvmvif->deflink.ap_sta_id,
|
|
false);
|
|
else
|
|
ret = iwl_mvm_bt_coex_reduced_txp(mvm,
|
|
mvmvif->deflink.ap_sta_id,
|
|
true);
|
|
|
|
if (ret)
|
|
IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n");
|
|
}
|
|
|
|
#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000)
|
|
#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200)
|
|
|
|
u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
|
|
struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->deflink.phy_ctxt;
|
|
enum iwl_bt_coex_lut_type lut_type;
|
|
|
|
if (mvm->last_bt_notif.ttc_status & BIT(phy_ctxt->id))
|
|
return LINK_QUAL_AGG_TIME_LIMIT_DEF;
|
|
|
|
if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
|
|
BT_HIGH_TRAFFIC)
|
|
return LINK_QUAL_AGG_TIME_LIMIT_DEF;
|
|
|
|
lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
|
|
|
|
if (lut_type == BT_COEX_LOOSE_LUT || lut_type == BT_COEX_INVALID_LUT)
|
|
return LINK_QUAL_AGG_TIME_LIMIT_DEF;
|
|
|
|
/* tight coex, high bt traffic, reduce AGG time limit */
|
|
return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
|
|
}
|
|
|
|
bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
|
|
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
|
|
struct iwl_mvm_phy_ctxt *phy_ctxt = mvmvif->deflink.phy_ctxt;
|
|
enum iwl_bt_coex_lut_type lut_type;
|
|
|
|
if (mvm->last_bt_notif.ttc_status & BIT(phy_ctxt->id))
|
|
return true;
|
|
|
|
if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
|
|
BT_HIGH_TRAFFIC)
|
|
return true;
|
|
|
|
/*
|
|
* In Tight / TxTxDis, BT can't Rx while we Tx, so use both antennas
|
|
* since BT is already killed.
|
|
* In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while
|
|
* we Tx.
|
|
* When we are in 5GHz, we'll get BT_COEX_INVALID_LUT allowing MIMO.
|
|
*/
|
|
lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
|
|
return lut_type != BT_COEX_LOOSE_LUT;
|
|
}
|
|
|
|
bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant)
|
|
{
|
|
/* there is no other antenna, shared antenna is always available */
|
|
if (mvm->cfg->bt_shared_single_ant)
|
|
return true;
|
|
|
|
if (ant & mvm->cfg->non_shared_ant)
|
|
return true;
|
|
|
|
return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
|
|
BT_HIGH_TRAFFIC;
|
|
}
|
|
|
|
bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm)
|
|
{
|
|
/* there is no other antenna, shared antenna is always available */
|
|
if (mvm->cfg->bt_shared_single_ant)
|
|
return true;
|
|
|
|
return le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < BT_HIGH_TRAFFIC;
|
|
}
|
|
|
|
bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
|
|
enum nl80211_band band)
|
|
{
|
|
u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
|
|
|
|
if (band != NL80211_BAND_2GHZ)
|
|
return false;
|
|
|
|
return bt_activity >= BT_LOW_TRAFFIC;
|
|
}
|
|
|
|
u8 iwl_mvm_bt_coex_get_single_ant_msk(struct iwl_mvm *mvm, u8 enabled_ants)
|
|
{
|
|
if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2) &&
|
|
(mvm->cfg->non_shared_ant & enabled_ants))
|
|
return mvm->cfg->non_shared_ant;
|
|
|
|
return first_antenna(enabled_ants);
|
|
}
|
|
|
|
u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
|
|
struct ieee80211_tx_info *info, u8 ac)
|
|
{
|
|
__le16 fc = hdr->frame_control;
|
|
bool mplut_enabled = iwl_mvm_is_mplut_supported(mvm);
|
|
|
|
if (info->band != NL80211_BAND_2GHZ)
|
|
return 0;
|
|
|
|
if (unlikely(mvm->bt_tx_prio))
|
|
return mvm->bt_tx_prio - 1;
|
|
|
|
if (likely(ieee80211_is_data(fc))) {
|
|
if (likely(ieee80211_is_data_qos(fc))) {
|
|
switch (ac) {
|
|
case IEEE80211_AC_BE:
|
|
return mplut_enabled ? 1 : 0;
|
|
case IEEE80211_AC_VI:
|
|
return mplut_enabled ? 2 : 3;
|
|
case IEEE80211_AC_VO:
|
|
return 3;
|
|
default:
|
|
return 0;
|
|
}
|
|
} else if (is_multicast_ether_addr(hdr->addr1)) {
|
|
return 3;
|
|
} else
|
|
return 0;
|
|
} else if (ieee80211_is_mgmt(fc)) {
|
|
return ieee80211_is_disassoc(fc) ? 0 : 3;
|
|
} else if (ieee80211_is_ctl(fc)) {
|
|
/* ignore cfend and cfendack frames as we never send those */
|
|
return 3;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
|
|
{
|
|
iwl_mvm_bt_coex_notif_handle(mvm);
|
|
}
|