wifi: iwlwifi: mvm: start to support the new BT profile notification

We have a new notification the BT profile. It contains almost nothing,
only the wifi loss information. Copy this into mvm. We still need to
iterate over the vifs / links to use this data.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20240729201718.637499f3a85a.I8bf654cf5d8aa038100273876c936845ecc338f7@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

3 files changed, 52 insertions, 9 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/coex.c b/drivers/net/wireless/intel/iwlwifi/mvm/coex.c
index f2912105c7b5..0bfe250c3bc8 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/coex.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/coex.c
@@ -266,10 +266,26 @@ iwl_mvm_bt_coex_calculate_esr_mode(struct iwl_mvm *mvm,
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	bool have_wifi_loss_rate =
 		iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
-					BT_PROFILE_NOTIFICATION, 0) > 4;
+					BT_PROFILE_NOTIFICATION, 0) > 4 ||
+		iwl_fw_lookup_notif_ver(mvm->fw, BT_COEX_GROUP,
+					PROFILE_NOTIF, 0) >= 1;
+	u8 wifi_loss_mid_high_rssi;
+	u8 wifi_loss_low_rssi;
 	u8 wifi_loss_rate;
 
-	if (mvm->last_bt_notif.wifi_loss_low_rssi == BT_OFF)
+	if (iwl_fw_lookup_notif_ver(mvm->fw, BT_COEX_GROUP,
+				    PROFILE_NOTIF, 0) >= 1) {
+		/* For now, we consider 2.4 GHz band / ANT_A only */
+		wifi_loss_mid_high_rssi =
+			mvm->last_bt_wifi_loss.wifi_loss_mid_high_rssi[PHY_BAND_24][0];
+		wifi_loss_low_rssi =
+			mvm->last_bt_wifi_loss.wifi_loss_low_rssi[PHY_BAND_24][0];
+	} else {
+		wifi_loss_mid_high_rssi = mvm->last_bt_notif.wifi_loss_mid_high_rssi;
+		wifi_loss_low_rssi = mvm->last_bt_notif.wifi_loss_low_rssi;
+	}
+
+	if (wifi_loss_low_rssi == BT_OFF)
 		return true;
 
 	if (primary)
@@ -286,20 +302,20 @@ iwl_mvm_bt_coex_calculate_esr_mode(struct iwl_mvm *mvm,
 	 * we will get an update on this and exit eSR.
 	 */
 	if (!link_rssi)
-		wifi_loss_rate = mvm->last_bt_notif.wifi_loss_mid_high_rssi;
+		wifi_loss_rate = wifi_loss_mid_high_rssi;
 
 	else if (mvmvif->esr_active)
 		 /* RSSI needs to get really low to disable eSR... */
 		wifi_loss_rate =
 			link_rssi <= -IWL_MVM_BT_COEX_DISABLE_ESR_THRESH ?
-				mvm->last_bt_notif.wifi_loss_low_rssi :
-				mvm->last_bt_notif.wifi_loss_mid_high_rssi;
+				wifi_loss_low_rssi :
+				wifi_loss_mid_high_rssi;
 	else
 		/* ...And really high before we enable it back */
 		wifi_loss_rate =
 			link_rssi <= -IWL_MVM_BT_COEX_ENABLE_ESR_THRESH ?
-				mvm->last_bt_notif.wifi_loss_low_rssi :
-				mvm->last_bt_notif.wifi_loss_mid_high_rssi;
+				wifi_loss_low_rssi :
+				wifi_loss_mid_high_rssi;
 
 	return wifi_loss_rate <= IWL_MVM_BT_COEX_WIFI_LOSS_THRESH;
 }
@@ -612,6 +628,17 @@ void iwl_mvm_rx_bt_coex_old_notif(struct iwl_mvm *mvm,
 	iwl_mvm_bt_coex_notif_handle(mvm);
 }
 
+void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
+			      struct iwl_rx_cmd_buffer *rxb)
+{
+	const struct iwl_rx_packet *pkt = rxb_addr(rxb);
+	const struct iwl_bt_coex_profile_notif *notif = (const void *)pkt->data;
+
+	mvm->last_bt_wifi_loss = *notif;
+
+	/* TODO: Iterate over vifs / links to take that into account */
+}
+
 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			   enum ieee80211_rssi_event_data rssi_event)
 {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index b968ca0c6a40..9cb7045cc0ba 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1200,8 +1200,11 @@ struct iwl_mvm {
 
 	wait_queue_head_t rx_sync_waitq;
 
-	/* BT-Coex */
-	struct iwl_bt_coex_prof_old_notif last_bt_notif;
+	/* BT-Coex - only one of those will be used */
+	union {
+		struct iwl_bt_coex_prof_old_notif last_bt_notif;
+		struct iwl_bt_coex_profile_notif last_bt_wifi_loss;
+	};
 	struct iwl_bt_coex_ci_cmd last_bt_ci_cmd;
 
 	u8 bt_tx_prio;
@@ -2324,6 +2327,8 @@ int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm,
 int iwl_mvm_send_bt_init_conf(struct iwl_mvm *mvm);
 void iwl_mvm_rx_bt_coex_old_notif(struct iwl_mvm *mvm,
 				  struct iwl_rx_cmd_buffer *rxb);
+void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
+			      struct iwl_rx_cmd_buffer *rxb);
 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			   enum ieee80211_rssi_event_data);
 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index cb123852fe94..279c92307420 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -336,6 +336,9 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
 	RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_old_notif,
 		   RX_HANDLER_ASYNC_LOCKED_WIPHY,
 		   struct iwl_bt_coex_prof_old_notif),
+	RX_HANDLER_GRP(BT_COEX_GROUP, PROFILE_NOTIF, iwl_mvm_rx_bt_coex_notif,
+		       RX_HANDLER_ASYNC_LOCKED_WIPHY,
+		       struct iwl_bt_coex_profile_notif),
 	RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif,
 			   RX_HANDLER_ASYNC_LOCKED),
 	RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics,
@@ -713,6 +716,13 @@ static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = {
 	HCMD_NAME(TAS_CONFIG),
 };
 
+/* Please keep this array *SORTED* by hex value.
+ * Access is done through binary search
+ */
+static const struct iwl_hcmd_names iwl_mvm_bt_coex_names[] = {
+	HCMD_NAME(PROFILE_NOTIF),
+};
+
 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
 	[LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
 	[LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
@@ -722,6 +732,7 @@ static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
 	[DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
 	[SCAN_GROUP] = HCMD_ARR(iwl_mvm_scan_names),
 	[LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names),
+	[BT_COEX_GROUP] = HCMD_ARR(iwl_mvm_bt_coex_names),
 	[PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
 	[REGULATORY_AND_NVM_GROUP] =
 		HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),