4 files changed, 23 insertions, 5 deletions
diff --git a/src/core/hid/emulated_controller.cpp b/src/core/hid/emulated_controller.cpp
index 94bd656fe..2af3f06fc 100644
--- a/src/core/hid/emulated_controller.cpp
+++ b/src/core/hid/emulated_controller.cpp
@@ -542,6 +542,7 @@ void EmulatedController::UnloadInput() {
 }
 
 void EmulatedController::EnableConfiguration() {
+    std::scoped_lock lock{connect_mutex, npad_mutex};
     is_configuring = true;
     tmp_is_connected = is_connected;
     tmp_npad_type = npad_type;
@@ -1556,7 +1557,7 @@ void EmulatedController::Connect(bool use_temporary_value) {
 
     auto trigger_guard =
         SCOPE_GUARD({ TriggerOnChange(ControllerTriggerType::Connected, !is_configuring); });
-    std::scoped_lock lock{mutex};
+    std::scoped_lock lock{connect_mutex, mutex};
     if (is_configuring) {
         tmp_is_connected = true;
         return;
@@ -1572,7 +1573,7 @@ void EmulatedController::Connect(bool use_temporary_value) {
 void EmulatedController::Disconnect() {
     auto trigger_guard =
         SCOPE_GUARD({ TriggerOnChange(ControllerTriggerType::Disconnected, !is_configuring); });
-    std::scoped_lock lock{mutex};
+    std::scoped_lock lock{connect_mutex, mutex};
     if (is_configuring) {
         tmp_is_connected = false;
         return;
@@ -1586,7 +1587,7 @@ void EmulatedController::Disconnect() {
 }
 
 bool EmulatedController::IsConnected(bool get_temporary_value) const {
-    std::scoped_lock lock{mutex};
+    std::scoped_lock lock{connect_mutex};
     if (get_temporary_value && is_configuring) {
         return tmp_is_connected;
     }
@@ -1599,7 +1600,7 @@ NpadIdType EmulatedController::GetNpadIdType() const {
 }
 
 NpadStyleIndex EmulatedController::GetNpadStyleIndex(bool get_temporary_value) const {
-    std::scoped_lock lock{mutex};
+    std::scoped_lock lock{npad_mutex};
     if (get_temporary_value && is_configuring) {
         return tmp_npad_type;
     }
@@ -1609,7 +1610,7 @@ NpadStyleIndex EmulatedController::GetNpadStyleIndex(bool get_temporary_value) c
 void EmulatedController::SetNpadStyleIndex(NpadStyleIndex npad_type_) {
     auto trigger_guard =
         SCOPE_GUARD({ TriggerOnChange(ControllerTriggerType::Type, !is_configuring); });
-    std::scoped_lock lock{mutex};
+    std::scoped_lock lock{mutex, npad_mutex};
 
     if (is_configuring) {
         if (tmp_npad_type == npad_type_) {
diff --git a/src/core/hid/emulated_controller.h b/src/core/hid/emulated_controller.h
index 88d77db8d..d4500583e 100644
--- a/src/core/hid/emulated_controller.h
+++ b/src/core/hid/emulated_controller.h
@@ -603,6 +603,8 @@ private:
 
     mutable std::mutex mutex;
     mutable std::mutex callback_mutex;
+    mutable std::mutex npad_mutex;
+    mutable std::mutex connect_mutex;
     std::unordered_map<int, ControllerUpdateCallback> callback_list;
     int last_callback_key = 0;
 
diff --git a/src/core/hid/hid_core.cpp b/src/core/hid/hid_core.cpp
index 7d6373414..cf53c04d9 100644
--- a/src/core/hid/hid_core.cpp
+++ b/src/core/hid/hid_core.cpp
@@ -154,6 +154,14 @@ NpadIdType HIDCore::GetFirstDisconnectedNpadId() const {
     return NpadIdType::Player1;
 }
 
+void HIDCore::SetLastActiveController(NpadIdType npad_id) {
+    last_active_controller = npad_id;
+}
+
+NpadIdType HIDCore::GetLastActiveController() const {
+    return last_active_controller;
+}
+
 void HIDCore::EnableAllControllerConfiguration() {
     player_1->EnableConfiguration();
     player_2->EnableConfiguration();
diff --git a/src/core/hid/hid_core.h b/src/core/hid/hid_core.h
index 5fe36551e..80abab18b 100644
--- a/src/core/hid/hid_core.h
+++ b/src/core/hid/hid_core.h
@@ -48,6 +48,12 @@ public:
     /// Returns the first disconnected npad id
     NpadIdType GetFirstDisconnectedNpadId() const;
 
+    /// Sets the npad id of the last active controller
+    void SetLastActiveController(NpadIdType npad_id);
+
+    /// Returns the npad id of the last controller that pushed a button
+    NpadIdType GetLastActiveController() const;
+
     /// Sets all emulated controllers into configuring mode.
     void EnableAllControllerConfiguration();
 
@@ -77,6 +83,7 @@ private:
     std::unique_ptr<EmulatedConsole> console;
     std::unique_ptr<EmulatedDevices> devices;
     NpadStyleTag supported_style_tag{NpadStyleSet::All};
+    NpadIdType last_active_controller{NpadIdType::Handheld};
 };
 
 } // namespace Core::HID