1 files changed, 36 insertions, 0 deletions
diff --git a/src/core/hle/service/am/audio_controller.h b/src/core/hle/service/am/audio_controller.h
new file mode 100644
index 000000000..a47e3bad8
--- /dev/null
+++ b/src/core/hle/service/am/audio_controller.h
@@ -0,0 +1,36 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Service::AM {
+
+class IAudioController final : public ServiceFramework<IAudioController> {
+public:
+    explicit IAudioController(Core::System& system_);
+    ~IAudioController() override;
+
+private:
+    void SetExpectedMasterVolume(HLERequestContext& ctx);
+    void GetMainAppletExpectedMasterVolume(HLERequestContext& ctx);
+    void GetLibraryAppletExpectedMasterVolume(HLERequestContext& ctx);
+    void ChangeMainAppletMasterVolume(HLERequestContext& ctx);
+    void SetTransparentAudioRate(HLERequestContext& ctx);
+
+    static constexpr float min_allowed_volume = 0.0f;
+    static constexpr float max_allowed_volume = 1.0f;
+
+    float main_applet_volume{0.25f};
+    float library_applet_volume{max_allowed_volume};
+    float transparent_volume_rate{min_allowed_volume};
+
+    // Volume transition fade time in nanoseconds.
+    // e.g. If the main applet volume was 0% and was changed to 50%
+    //      with a fade of 50ns, then over the course of 50ns,
+    //      the volume will gradually fade up to 50%
+    std::chrono::nanoseconds fade_time_ns{0};
+};
+
+} // namespace Service::AM