iwlwifi: mvm: Implement BT coex notifications
Use beacon statistics notification handler
to notify bt coex about rssi changes.
Mac80211's mechanism is not used anymore.
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 0fad98b..bba5947 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -467,11 +467,14 @@
data->reduced_tx_power = false;
/* ... and there is no need to get reports on RSSI any more. */
- ieee80211_disable_rssi_reports(vif);
+ mvmvif->bf_data.last_bt_coex_event = 0;
+ mvmvif->bf_data.bt_coex_max_thold = 0;
+ mvmvif->bf_data.bt_coex_min_thold = 0;
return;
}
- ave_rssi = ieee80211_ave_rssi(vif);
+ /* try to get the avg rssi from fw */
+ ave_rssi = mvmvif->bf_data.ave_beacon_signal;
/* if the RSSI isn't valid, fake it is very low */
if (!ave_rssi)
@@ -499,8 +502,13 @@
}
/* Begin to monitor the RSSI: it may influence the reduced Tx power */
- ieee80211_enable_rssi_reports(vif, BT_DISABLE_REDUCED_TXPOWER_THRESHOLD,
- BT_ENABLE_REDUCED_TXPOWER_THRESHOLD);
+
+ /* reset previous bt coex event tracking */
+ mvmvif->bf_data.last_bt_coex_event = 0;
+ mvmvif->bf_data.bt_coex_max_thold =
+ BT_ENABLE_REDUCED_TXPOWER_THRESHOLD;
+ mvmvif->bf_data.bt_coex_min_thold =
+ BT_DISABLE_REDUCED_TXPOWER_THRESHOLD;
}
static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 7716652..141fc54 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1578,15 +1578,6 @@
return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
}
-static void iwl_mvm_mac_rssi_callback(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- enum ieee80211_rssi_event rssi_event)
-{
- struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
-
- iwl_mvm_bt_rssi_event(mvm, vif, rssi_event);
-}
-
#ifdef CONFIG_NL80211_TESTMODE
static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
[IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
@@ -1677,8 +1668,6 @@
.update_tkip_key = iwl_mvm_mac_update_tkip_key,
.remain_on_channel = iwl_mvm_roc,
.cancel_remain_on_channel = iwl_mvm_cancel_roc,
- .rssi_callback = iwl_mvm_mac_rssi_callback,
-
.add_chanctx = iwl_mvm_add_chanctx,
.remove_chanctx = iwl_mvm_remove_chanctx,
.change_chanctx = iwl_mvm_change_chanctx,
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 0d3bdef..d7b0aee 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -241,12 +241,18 @@
* @last_beacon_signal: last beacon rssi signal in dbm
* @ave_beacon_signal: average beacon signal
* @last_cqm_event: rssi of the last cqm event
+* @bt_coex_min_thold: minimum threshold for BT coex
+* @bt_coex_max_thold: maximum threshold for BT coex
+* @last_bt_coex_event: rssi of the last BT coex event
*/
struct iwl_mvm_vif_bf_data {
bool bf_enabled;
bool ba_enabled;
s8 ave_beacon_signal;
s8 last_cqm_event;
+ s8 bt_coex_min_thold;
+ s8 bt_coex_max_thold;
+ s8 last_bt_coex_event;
};
/**
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c
index 2a8cb5a..a4af501 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rx.c
@@ -422,6 +422,27 @@
mvmvif->bf_data.ave_beacon_signal = sig;
+ /* BT Coex */
+ if (mvmvif->bf_data.bt_coex_min_thold !=
+ mvmvif->bf_data.bt_coex_max_thold) {
+ last_event = mvmvif->bf_data.last_bt_coex_event;
+ if (sig > mvmvif->bf_data.bt_coex_max_thold &&
+ (last_event <= mvmvif->bf_data.bt_coex_min_thold ||
+ last_event == 0)) {
+ mvmvif->bf_data.last_bt_coex_event = sig;
+ IWL_DEBUG_RX(mvm, "cqm_iterator bt coex high %d\n",
+ sig);
+ iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_HIGH);
+ } else if (sig < mvmvif->bf_data.bt_coex_min_thold &&
+ (last_event >= mvmvif->bf_data.bt_coex_max_thold ||
+ last_event == 0)) {
+ mvmvif->bf_data.last_bt_coex_event = sig;
+ IWL_DEBUG_RX(mvm, "cqm_iterator bt coex low %d\n",
+ sig);
+ iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_LOW);
+ }
+ }
+
if (!(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
return;