4 files changed, 83 insertions, 0 deletions

diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index aff1d2180..ba5b02174 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -148,6 +148,8 @@ add_library(core STATIC
     hle/service/hid/hid.h
     hle/service/lm/lm.cpp
     hle/service/lm/lm.h
+    hle/service/mm/mm_u.cpp
+    hle/service/mm/mm_u.h
     hle/service/nifm/nifm.cpp
     hle/service/nifm/nifm.h
     hle/service/nifm/nifm_a.cpp
diff --git a/src/core/hle/service/mm/mm_u.cpp b/src/core/hle/service/mm/mm_u.cpp
new file mode 100644
index 000000000..b3a85b818
--- /dev/null
+++ b/src/core/hle/service/mm/mm_u.cpp
@@ -0,0 +1,50 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/logging/log.h"
+#include "core/hle/ipc_helpers.h"
+#include "core/hle/kernel/client_session.h"
+#include "core/hle/service/mm/mm_u.h"
+
+namespace Service::MM {
+
+void InstallInterfaces(SM::ServiceManager& service_manager) {
+    std::make_shared<MM_U>()->InstallAsService(service_manager);
+}
+
+void MM_U::Initialize(Kernel::HLERequestContext& ctx) {
+    NGLOG_WARNING(Service_MM, "(STUBBED) called");
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
+void MM_U::SetAndWait(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    min = rp.Pop<u32>();
+    max = rp.Pop<u32>();
+    current = min;
+
+    NGLOG_WARNING(Service_MM, "(STUBBED) called, min=0x{:X}, max=0x{:X}", min, max);
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(RESULT_SUCCESS);
+}
+
+void MM_U::Get(Kernel::HLERequestContext& ctx) {
+    NGLOG_WARNING(Service_MM, "(STUBBED) called");
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(RESULT_SUCCESS);
+    rb.Push(current);
+}
+
+MM_U::MM_U() : ServiceFramework("mm:u") {
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "InitializeOld"},        {1, nullptr, "FinalizeOld"},
+        {2, nullptr, "SetAndWaitOld"},        {3, nullptr, "GetOld"},
+        {4, &MM_U::Initialize, "Initialize"}, {5, nullptr, "Finalize"},
+        {6, &MM_U::SetAndWait, "SetAndWait"}, {7, &MM_U::Get, "Get"},
+    };
+    RegisterHandlers(functions);
+}
+
+} // namespace Service::MM
diff --git a/src/core/hle/service/mm/mm_u.h b/src/core/hle/service/mm/mm_u.h
new file mode 100644
index 000000000..79eeedf9c
--- /dev/null
+++ b/src/core/hle/service/mm/mm_u.h
@@ -0,0 +1,29 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Service::MM {
+
+class MM_U final : public ServiceFramework<MM_U> {
+public:
+    MM_U();
+    ~MM_U() = default;
+
+private:
+    void Initialize(Kernel::HLERequestContext& ctx);
+    void SetAndWait(Kernel::HLERequestContext& ctx);
+    void Get(Kernel::HLERequestContext& ctx);
+
+    u32 min{0};
+    u32 max{0};
+    u32 current{0};
+};
+
+/// Registers all MM services with the specified service manager.
+void InstallInterfaces(SM::ServiceManager& service_manager);
+
+} // namespace Service::MM
diff --git a/src/core/hle/service/service.cpp b/src/core/hle/service/service.cpp
index 409fec470..bdd9eb5a5 100644
--- a/src/core/hle/service/service.cpp
+++ b/src/core/hle/service/service.cpp
@@ -26,6 +26,7 @@
 #include "core/hle/service/friend/friend.h"
 #include "core/hle/service/hid/hid.h"
 #include "core/hle/service/lm/lm.h"
+#include "core/hle/service/mm/mm_u.h"
 #include "core/hle/service/nfp/nfp.h"
 #include "core/hle/service/nifm/nifm.h"
 #include "core/hle/service/ns/ns.h"
@@ -191,6 +192,7 @@ void Init(std::shared_ptr<SM::ServiceManager>& sm) {
     Friend::InstallInterfaces(*sm);
     HID::InstallInterfaces(*sm);
     LM::InstallInterfaces(*sm);
+    MM::InstallInterfaces(*sm);
     NFP::InstallInterfaces(*sm);
     NIFM::InstallInterfaces(*sm);
     NS::InstallInterfaces(*sm);