4 files changed, 56 insertions, 22 deletions

diff --git a/src/core/hle/service/hid/controllers/npad.cpp b/src/core/hle/service/hid/controllers/npad.cpp
index 21bd7b0c5..b070327ec 100644
--- a/src/core/hle/service/hid/controllers/npad.cpp
+++ b/src/core/hle/service/hid/controllers/npad.cpp
@@ -819,12 +819,12 @@ Controller_NPad::NpadCommunicationMode Controller_NPad::GetNpadCommunicationMode
     return communication_mode;
 }
 
-Result Controller_NPad::SetNpadMode(Core::HID::NpadIdType npad_id,
-                                    NpadJoyDeviceType npad_device_type,
-                                    NpadJoyAssignmentMode assignment_mode) {
+bool Controller_NPad::SetNpadMode(Core::HID::NpadIdType& new_npad_id, Core::HID::NpadIdType npad_id,
+                                  NpadJoyDeviceType npad_device_type,
+                                  NpadJoyAssignmentMode assignment_mode) {
     if (!IsNpadIdValid(npad_id)) {
         LOG_ERROR(Service_HID, "Invalid NpadIdType npad_id:{}", npad_id);
-        return InvalidNpadId;
+        return false;
     }
 
     auto& controller = GetControllerFromNpadIdType(npad_id);
@@ -833,7 +833,7 @@ Result Controller_NPad::SetNpadMode(Core::HID::NpadIdType npad_id,
     }
 
     if (!controller.device->IsConnected()) {
-        return ResultSuccess;
+        return false;
     }
 
     if (assignment_mode == NpadJoyAssignmentMode::Dual) {
@@ -842,52 +842,52 @@ Result Controller_NPad::SetNpadMode(Core::HID::NpadIdType npad_id,
             controller.is_dual_left_connected = true;
             controller.is_dual_right_connected = false;
             UpdateControllerAt(Core::HID::NpadStyleIndex::JoyconDual, npad_id, true);
-            return ResultSuccess;
+            return false;
         }
         if (controller.device->GetNpadStyleIndex() == Core::HID::NpadStyleIndex::JoyconRight) {
             DisconnectNpad(npad_id);
             controller.is_dual_left_connected = false;
             controller.is_dual_right_connected = true;
             UpdateControllerAt(Core::HID::NpadStyleIndex::JoyconDual, npad_id, true);
-            return ResultSuccess;
+            return false;
         }
-        return ResultSuccess;
+        return false;
     }
 
     // This is for NpadJoyAssignmentMode::Single
 
     // Only JoyconDual get affected by this function
     if (controller.device->GetNpadStyleIndex() != Core::HID::NpadStyleIndex::JoyconDual) {
-        return ResultSuccess;
+        return false;
     }
 
     if (controller.is_dual_left_connected && !controller.is_dual_right_connected) {
         DisconnectNpad(npad_id);
         UpdateControllerAt(Core::HID::NpadStyleIndex::JoyconLeft, npad_id, true);
-        return ResultSuccess;
+        return false;
     }
     if (!controller.is_dual_left_connected && controller.is_dual_right_connected) {
         DisconnectNpad(npad_id);
         UpdateControllerAt(Core::HID::NpadStyleIndex::JoyconRight, npad_id, true);
-        return ResultSuccess;
+        return false;
     }
 
     // We have two controllers connected to the same npad_id we need to split them
-    const auto npad_id_2 = hid_core.GetFirstDisconnectedNpadId();
-    auto& controller_2 = GetControllerFromNpadIdType(npad_id_2);
+    new_npad_id = hid_core.GetFirstDisconnectedNpadId();
+    auto& controller_2 = GetControllerFromNpadIdType(new_npad_id);
     DisconnectNpad(npad_id);
     if (npad_device_type == NpadJoyDeviceType::Left) {
         UpdateControllerAt(Core::HID::NpadStyleIndex::JoyconLeft, npad_id, true);
         controller_2.is_dual_left_connected = false;
         controller_2.is_dual_right_connected = true;
-        UpdateControllerAt(Core::HID::NpadStyleIndex::JoyconDual, npad_id_2, true);
+        UpdateControllerAt(Core::HID::NpadStyleIndex::JoyconDual, new_npad_id, true);
     } else {
         UpdateControllerAt(Core::HID::NpadStyleIndex::JoyconRight, npad_id, true);
         controller_2.is_dual_left_connected = true;
         controller_2.is_dual_right_connected = false;
-        UpdateControllerAt(Core::HID::NpadStyleIndex::JoyconDual, npad_id_2, true);
+        UpdateControllerAt(Core::HID::NpadStyleIndex::JoyconDual, new_npad_id, true);
     }
-    return ResultSuccess;
+    return true;
 }
 
 bool Controller_NPad::VibrateControllerAtIndex(Core::HID::NpadIdType npad_id,
diff --git a/src/core/hle/service/hid/controllers/npad.h b/src/core/hle/service/hid/controllers/npad.h
index a5998c453..9cfe298f1 100644
--- a/src/core/hle/service/hid/controllers/npad.h
+++ b/src/core/hle/service/hid/controllers/npad.h
@@ -102,8 +102,8 @@ public:
     void SetNpadCommunicationMode(NpadCommunicationMode communication_mode_);
     NpadCommunicationMode GetNpadCommunicationMode() const;
 
-    Result SetNpadMode(Core::HID::NpadIdType npad_id, NpadJoyDeviceType npad_device_type,
-                       NpadJoyAssignmentMode assignment_mode);
+    bool SetNpadMode(Core::HID::NpadIdType& new_npad_id, Core::HID::NpadIdType npad_id,
+                     NpadJoyDeviceType npad_device_type, NpadJoyAssignmentMode assignment_mode);
 
     bool VibrateControllerAtIndex(Core::HID::NpadIdType npad_id, std::size_t device_index,
                                   const Core::HID::VibrationValue& vibration_value);
diff --git a/src/core/hle/service/hid/hid.cpp b/src/core/hle/service/hid/hid.cpp
index 4529ad643..87e7b864a 100644
--- a/src/core/hle/service/hid/hid.cpp
+++ b/src/core/hle/service/hid/hid.cpp
@@ -302,7 +302,7 @@ Hid::Hid(Core::System& system_)
         {130, &Hid::SwapNpadAssignment, "SwapNpadAssignment"},
         {131, &Hid::IsUnintendedHomeButtonInputProtectionEnabled, "IsUnintendedHomeButtonInputProtectionEnabled"},
         {132, &Hid::EnableUnintendedHomeButtonInputProtection, "EnableUnintendedHomeButtonInputProtection"},
-        {133, nullptr, "SetNpadJoyAssignmentModeSingleWithDestination"},
+        {133, &Hid::SetNpadJoyAssignmentModeSingleWithDestination, "SetNpadJoyAssignmentModeSingleWithDestination"},
         {134, &Hid::SetNpadAnalogStickUseCenterClamp, "SetNpadAnalogStickUseCenterClamp"},
         {135, &Hid::SetNpadCaptureButtonAssignment, "SetNpadCaptureButtonAssignment"},
         {136, &Hid::ClearNpadCaptureButtonAssignment, "ClearNpadCaptureButtonAssignment"},
@@ -1180,8 +1180,10 @@ void Hid::SetNpadJoyAssignmentModeSingleByDefault(HLERequestContext& ctx) {
 
     const auto parameters{rp.PopRaw<Parameters>()};
 
+    Core::HID::NpadIdType new_npad_id{};
     auto& controller = GetAppletResource()->GetController<Controller_NPad>(HidController::NPad);
-    controller.SetNpadMode(parameters.npad_id, Controller_NPad::NpadJoyDeviceType::Left,
+    controller.SetNpadMode(new_npad_id, parameters.npad_id,
+                           Controller_NPad::NpadJoyDeviceType::Left,
                            Controller_NPad::NpadJoyAssignmentMode::Single);
 
     LOG_INFO(Service_HID, "called, npad_id={}, applet_resource_user_id={}", parameters.npad_id,
@@ -1203,8 +1205,9 @@ void Hid::SetNpadJoyAssignmentModeSingle(HLERequestContext& ctx) {
 
     const auto parameters{rp.PopRaw<Parameters>()};
 
+    Core::HID::NpadIdType new_npad_id{};
     auto& controller = GetAppletResource()->GetController<Controller_NPad>(HidController::NPad);
-    controller.SetNpadMode(parameters.npad_id, parameters.npad_joy_device_type,
+    controller.SetNpadMode(new_npad_id, parameters.npad_id, parameters.npad_joy_device_type,
                            Controller_NPad::NpadJoyAssignmentMode::Single);
 
     LOG_INFO(Service_HID, "called, npad_id={}, applet_resource_user_id={}, npad_joy_device_type={}",
@@ -1226,8 +1229,10 @@ void Hid::SetNpadJoyAssignmentModeDual(HLERequestContext& ctx) {
 
     const auto parameters{rp.PopRaw<Parameters>()};
 
+    Core::HID::NpadIdType new_npad_id{};
     auto& controller = GetAppletResource()->GetController<Controller_NPad>(HidController::NPad);
-    controller.SetNpadMode(parameters.npad_id, {}, Controller_NPad::NpadJoyAssignmentMode::Dual);
+    controller.SetNpadMode(new_npad_id, parameters.npad_id, {},
+                           Controller_NPad::NpadJoyAssignmentMode::Dual);
 
     LOG_INFO(Service_HID, "called, npad_id={}, applet_resource_user_id={}", parameters.npad_id,
              parameters.applet_resource_user_id);
@@ -1369,6 +1374,34 @@ void Hid::EnableUnintendedHomeButtonInputProtection(HLERequestContext& ctx) {
     rb.Push(result);
 }
 
+void Hid::SetNpadJoyAssignmentModeSingleWithDestination(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    struct Parameters {
+        Core::HID::NpadIdType npad_id;
+        INSERT_PADDING_WORDS_NOINIT(1);
+        u64 applet_resource_user_id;
+        Controller_NPad::NpadJoyDeviceType npad_joy_device_type;
+    };
+    static_assert(sizeof(Parameters) == 0x18, "Parameters has incorrect size.");
+
+    const auto parameters{rp.PopRaw<Parameters>()};
+
+    Core::HID::NpadIdType new_npad_id{};
+    auto& controller = GetAppletResource()->GetController<Controller_NPad>(HidController::NPad);
+    const auto is_reassigned =
+        controller.SetNpadMode(new_npad_id, parameters.npad_id, parameters.npad_joy_device_type,
+                               Controller_NPad::NpadJoyAssignmentMode::Single);
+
+    LOG_INFO(Service_HID, "called, npad_id={}, applet_resource_user_id={}, npad_joy_device_type={}",
+             parameters.npad_id, parameters.applet_resource_user_id,
+             parameters.npad_joy_device_type);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(ResultSuccess);
+    rb.Push(is_reassigned);
+    rb.PushEnum(new_npad_id);
+}
+
 void Hid::SetNpadAnalogStickUseCenterClamp(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     struct Parameters {
diff --git a/src/core/hle/service/hid/hid.h b/src/core/hle/service/hid/hid.h
index c69e5f3fb..f247b83c2 100644
--- a/src/core/hle/service/hid/hid.h
+++ b/src/core/hle/service/hid/hid.h
@@ -151,6 +151,7 @@ private:
     void SwapNpadAssignment(HLERequestContext& ctx);
     void IsUnintendedHomeButtonInputProtectionEnabled(HLERequestContext& ctx);
     void EnableUnintendedHomeButtonInputProtection(HLERequestContext& ctx);
+    void SetNpadJoyAssignmentModeSingleWithDestination(HLERequestContext& ctx);
     void SetNpadAnalogStickUseCenterClamp(HLERequestContext& ctx);
     void SetNpadCaptureButtonAssignment(HLERequestContext& ctx);
     void ClearNpadCaptureButtonAssignment(HLERequestContext& ctx);