early-access version 4160

README.md

@@ -1,7 +1,7 @@
 yuzu emulator early access
 =============
 
-This is the source code for early-access 4158.
+This is the source code for early-access 4160.
 
 ## Legal Notice
 

src/CMakeLists.txt

@@ -121,6 +121,7 @@ else()
         -Wno-attributes
         -Wno-invalid-offsetof
         -Wno-unused-parameter
+        -Wno-missing-field-initializers
     )
 
     if (CMAKE_CXX_COMPILER_ID MATCHES Clang) # Clang or AppleClang

src/android/app/src/main/jni/native.cpp

@@ -668,7 +668,7 @@ void Java_org_yuzu_yuzu_1emu_NativeLibrary_initializeEmptyUserDirectory(JNIEnv*
     ASSERT(user_id);
 
     const auto user_save_data_path = FileSys::SaveDataFactory::GetFullPath(
-        {}, vfs_nand_dir, FileSys::SaveDataSpaceId::NandUser, FileSys::SaveDataType::SaveData, 1,
+        {}, vfs_nand_dir, FileSys::SaveDataSpaceId::User, FileSys::SaveDataType::Account, 1,
         user_id->AsU128(), 0);
 
     const auto full_path = Common::FS::ConcatPathSafe(nand_dir, user_save_data_path);
@@ -836,8 +836,8 @@ jstring Java_org_yuzu_yuzu_1emu_NativeLibrary_getSavePath(JNIEnv* env, jobject j
                                                             FileSys::OpenMode::Read);
 
     const auto user_save_data_path = FileSys::SaveDataFactory::GetFullPath(
-        {}, vfsNandDir, FileSys::SaveDataSpaceId::NandUser, FileSys::SaveDataType::SaveData,
+        {}, vfsNandDir, FileSys::SaveDataSpaceId::User, FileSys::SaveDataType::Account, program_id,
-        program_id, user_id->AsU128(), 0);
+        user_id->AsU128(), 0);
     return Common::Android::ToJString(env, user_save_data_path);
 }
 

src/audio_core/audio_in_manager.cpp

@@ -73,16 +73,15 @@ void Manager::BufferReleaseAndRegister() {
     }
 }
 
-u32 Manager::GetDeviceNames(std::vector<Renderer::AudioDevice::AudioDeviceName>& names,
+u32 Manager::GetDeviceNames(std::span<Renderer::AudioDevice::AudioDeviceName> names,
-                            [[maybe_unused]] const u32 max_count,
                             [[maybe_unused]] const bool filter) {
     std::scoped_lock l{mutex};
 
     LinkToManager();
 
     auto input_devices{Sink::GetDeviceListForSink(Settings::values.sink_id.GetValue(), true)};
-    if (input_devices.size() > 1) {
+    if (!input_devices.empty() && !names.empty()) {
-        names.emplace_back("Uac");
+        names[0] = Renderer::AudioDevice::AudioDeviceName("Uac");
         return 1;
     }
     return 0;

src/audio_core/audio_in_manager.h

@@ -60,13 +60,11 @@ public:
      * Get a list of audio in device names.
      *
      * @param names     - Output container to write names to.
-     * @param max_count - Maximum number of device names to write. Unused
      * @param filter    - Should the list be filtered? Unused.
      *
      * @return Number of names written.
      */
-    u32 GetDeviceNames(std::vector<Renderer::AudioDevice::AudioDeviceName>& names, u32 max_count,
+    u32 GetDeviceNames(std::span<Renderer::AudioDevice::AudioDeviceName> names, bool filter);
-                       bool filter);
 
     /// Core system
     Core::System& system;

src/audio_core/device/audio_buffers.h

@@ -146,11 +146,11 @@ public:
                 break;
             }
 
-            tags[released++] = tag;
-
             if (released >= tags.size()) {
                 break;
             }
+
+            tags[released++] = tag;
         }
 
         return released;

src/audio_core/opus/decoder.cpp

@@ -28,8 +28,8 @@ OpusDecoder::~OpusDecoder() {
     }
 }
 
-Result OpusDecoder::Initialize(OpusParametersEx& params, Kernel::KTransferMemory* transfer_memory,
+Result OpusDecoder::Initialize(const OpusParametersEx& params,
-                               u64 transfer_memory_size) {
+                               Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size) {
     auto frame_size{params.use_large_frame_size ? 5760 : 1920};
     shared_buffer_size = transfer_memory_size;
     shared_buffer = std::make_unique<u8[]>(shared_buffer_size);
@@ -59,7 +59,7 @@ Result OpusDecoder::Initialize(OpusParametersEx& params, Kernel::KTransferMemory
     R_SUCCEED();
 }
 
-Result OpusDecoder::Initialize(OpusMultiStreamParametersEx& params,
+Result OpusDecoder::Initialize(const OpusMultiStreamParametersEx& params,
                                Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size) {
     auto frame_size{params.use_large_frame_size ? 5760 : 1920};
     shared_buffer_size = transfer_memory_size;

src/audio_core/opus/decoder.h

@@ -22,10 +22,10 @@ public:
     explicit OpusDecoder(Core::System& system, HardwareOpus& hardware_opus_);
     ~OpusDecoder();
 
-    Result Initialize(OpusParametersEx& params, Kernel::KTransferMemory* transfer_memory,
+    Result Initialize(const OpusParametersEx& params, Kernel::KTransferMemory* transfer_memory,
-                      u64 transfer_memory_size);
-    Result Initialize(OpusMultiStreamParametersEx& params, Kernel::KTransferMemory* transfer_memory,
                       u64 transfer_memory_size);
+    Result Initialize(const OpusMultiStreamParametersEx& params,
+                      Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size);
     Result DecodeInterleaved(u32* out_data_size, u64* out_time_taken, u32* out_sample_count,
                              std::span<const u8> input_data, std::span<u8> output_data, bool reset);
     Result SetContext([[maybe_unused]] std::span<const u8> context);

src/audio_core/opus/decoder_manager.cpp

@@ -38,7 +38,7 @@ OpusDecoderManager::OpusDecoderManager(Core::System& system_)
     }
 }
 
-Result OpusDecoderManager::GetWorkBufferSize(OpusParameters& params, u64& out_size) {
+Result OpusDecoderManager::GetWorkBufferSize(const OpusParameters& params, u32& out_size) {
     OpusParametersEx ex{
         .sample_rate = params.sample_rate,
         .channel_count = params.channel_count,
@@ -47,11 +47,11 @@ Result OpusDecoderManager::GetWorkBufferSize(OpusParameters& params, u64& out_si
     R_RETURN(GetWorkBufferSizeExEx(ex, out_size));
 }
 
-Result OpusDecoderManager::GetWorkBufferSizeEx(OpusParametersEx& params, u64& out_size) {
+Result OpusDecoderManager::GetWorkBufferSizeEx(const OpusParametersEx& params, u32& out_size) {
     R_RETURN(GetWorkBufferSizeExEx(params, out_size));
 }
 
-Result OpusDecoderManager::GetWorkBufferSizeExEx(OpusParametersEx& params, u64& out_size) {
+Result OpusDecoderManager::GetWorkBufferSizeExEx(const OpusParametersEx& params, u32& out_size) {
     R_UNLESS(IsValidChannelCount(params.channel_count), ResultInvalidOpusChannelCount);
     R_UNLESS(IsValidSampleRate(params.sample_rate), ResultInvalidOpusSampleRate);
 
@@ -63,8 +63,8 @@ Result OpusDecoderManager::GetWorkBufferSizeExEx(OpusParametersEx& params, u64&
     R_SUCCEED();
 }
 
-Result OpusDecoderManager::GetWorkBufferSizeForMultiStream(OpusMultiStreamParameters& params,
+Result OpusDecoderManager::GetWorkBufferSizeForMultiStream(const OpusMultiStreamParameters& params,
-                                                           u64& out_size) {
+                                                           u32& out_size) {
     OpusMultiStreamParametersEx ex{
         .sample_rate = params.sample_rate,
         .channel_count = params.channel_count,
@@ -76,13 +76,13 @@ Result OpusDecoderManager::GetWorkBufferSizeForMultiStream(OpusMultiStreamParame
     R_RETURN(GetWorkBufferSizeForMultiStreamExEx(ex, out_size));
 }
 
-Result OpusDecoderManager::GetWorkBufferSizeForMultiStreamEx(OpusMultiStreamParametersEx& params,
+Result OpusDecoderManager::GetWorkBufferSizeForMultiStreamEx(
-                                                             u64& out_size) {
+    const OpusMultiStreamParametersEx& params, u32& out_size) {
     R_RETURN(GetWorkBufferSizeForMultiStreamExEx(params, out_size));
 }
 
-Result OpusDecoderManager::GetWorkBufferSizeForMultiStreamExEx(OpusMultiStreamParametersEx& params,
+Result OpusDecoderManager::GetWorkBufferSizeForMultiStreamExEx(
-                                                               u64& out_size) {
+    const OpusMultiStreamParametersEx& params, u32& out_size) {
     R_UNLESS(IsValidMultiStreamChannelCount(params.channel_count), ResultInvalidOpusChannelCount);
     R_UNLESS(IsValidSampleRate(params.sample_rate), ResultInvalidOpusSampleRate);
     R_UNLESS(IsValidStreamCount(params.channel_count, params.total_stream_count,

src/audio_core/opus/decoder_manager.h

@@ -22,17 +22,19 @@ public:
         return hardware_opus;
     }
 
-    Result GetWorkBufferSize(OpusParameters& params, u64& out_size);
+    Result GetWorkBufferSize(const OpusParameters& params, u32& out_size);
-    Result GetWorkBufferSizeEx(OpusParametersEx& params, u64& out_size);
+    Result GetWorkBufferSizeEx(const OpusParametersEx& params, u32& out_size);
-    Result GetWorkBufferSizeExEx(OpusParametersEx& params, u64& out_size);
+    Result GetWorkBufferSizeExEx(const OpusParametersEx& params, u32& out_size);
-    Result GetWorkBufferSizeForMultiStream(OpusMultiStreamParameters& params, u64& out_size);
+    Result GetWorkBufferSizeForMultiStream(const OpusMultiStreamParameters& params, u32& out_size);
-    Result GetWorkBufferSizeForMultiStreamEx(OpusMultiStreamParametersEx& params, u64& out_size);
+    Result GetWorkBufferSizeForMultiStreamEx(const OpusMultiStreamParametersEx& params,
-    Result GetWorkBufferSizeForMultiStreamExEx(OpusMultiStreamParametersEx& params, u64& out_size);
+                                             u32& out_size);
+    Result GetWorkBufferSizeForMultiStreamExEx(const OpusMultiStreamParametersEx& params,
+                                               u32& out_size);
 
 private:
     Core::System& system;
     HardwareOpus hardware_opus;
-    std::array<u64, MaxChannels> required_workbuffer_sizes{};
+    std::array<u32, MaxChannels> required_workbuffer_sizes{};
 };
 
 } // namespace AudioCore::OpusDecoder

src/audio_core/opus/hardware_opus.cpp

@@ -42,7 +42,7 @@ HardwareOpus::HardwareOpus(Core::System& system_)
     opus_decoder.SetSharedMemory(shared_memory);
 }
 
-u64 HardwareOpus::GetWorkBufferSize(u32 channel) {
+u32 HardwareOpus::GetWorkBufferSize(u32 channel) {
     if (!opus_decoder.IsRunning()) {
         return 0;
     }
@@ -55,10 +55,10 @@ u64 HardwareOpus::GetWorkBufferSize(u32 channel) {
                   ADSP::OpusDecoder::Message::GetWorkBufferSizeOK, msg);
         return 0;
     }
-    return shared_memory.dsp_return_data[0];
+    return static_cast<u32>(shared_memory.dsp_return_data[0]);
 }
 
-u64 HardwareOpus::GetWorkBufferSizeForMultiStream(u32 total_stream_count, u32 stereo_stream_count) {
+u32 HardwareOpus::GetWorkBufferSizeForMultiStream(u32 total_stream_count, u32 stereo_stream_count) {
     std::scoped_lock l{mutex};
     shared_memory.host_send_data[0] = total_stream_count;
     shared_memory.host_send_data[1] = stereo_stream_count;
@@ -70,7 +70,7 @@ u64 HardwareOpus::GetWorkBufferSizeForMultiStream(u32 total_stream_count, u32 st
                   ADSP::OpusDecoder::Message::GetWorkBufferSizeForMultiStreamOK, msg);
         return 0;
     }
-    return shared_memory.dsp_return_data[0];
+    return static_cast<u32>(shared_memory.dsp_return_data[0]);
 }
 
 Result HardwareOpus::InitializeDecodeObject(u32 sample_rate, u32 channel_count, void* buffer,
@@ -94,8 +94,9 @@ Result HardwareOpus::InitializeDecodeObject(u32 sample_rate, u32 channel_count,
 
 Result HardwareOpus::InitializeMultiStreamDecodeObject(u32 sample_rate, u32 channel_count,
                                                        u32 total_stream_count,
-                                                       u32 stereo_stream_count, void* mappings,
+                                                       u32 stereo_stream_count,
-                                                       void* buffer, u64 buffer_size) {
+                                                       const void* mappings, void* buffer,
+                                                       u64 buffer_size) {
     std::scoped_lock l{mutex};
     shared_memory.host_send_data[0] = (u64)buffer;
     shared_memory.host_send_data[1] = buffer_size;

src/audio_core/opus/hardware_opus.h

@@ -16,14 +16,14 @@ class HardwareOpus {
 public:
     HardwareOpus(Core::System& system);
 
-    u64 GetWorkBufferSize(u32 channel);
+    u32 GetWorkBufferSize(u32 channel);
-    u64 GetWorkBufferSizeForMultiStream(u32 total_stream_count, u32 stereo_stream_count);
+    u32 GetWorkBufferSizeForMultiStream(u32 total_stream_count, u32 stereo_stream_count);
 
     Result InitializeDecodeObject(u32 sample_rate, u32 channel_count, void* buffer,
                                   u64 buffer_size);
     Result InitializeMultiStreamDecodeObject(u32 sample_rate, u32 channel_count,
                                              u32 totaL_stream_count, u32 stereo_stream_count,
-                                             void* mappings, void* buffer, u64 buffer_size);
+                                             const void* mappings, void* buffer, u64 buffer_size);
     Result ShutdownDecodeObject(void* buffer, u64 buffer_size);
     Result ShutdownMultiStreamDecodeObject(void* buffer, u64 buffer_size);
     Result DecodeInterleaved(u32& out_sample_count, void* output_data, u64 output_data_size,

src/audio_core/opus/parameters.h

@@ -20,7 +20,7 @@ struct OpusParametersEx {
     /* 0x00 */ u32 sample_rate;
     /* 0x04 */ u32 channel_count;
     /* 0x08 */ bool use_large_frame_size;
-    /* 0x09 */ INSERT_PADDING_BYTES(7);
+    /* 0x09 */ INSERT_PADDING_BYTES_NOINIT(7);
 }; // size = 0x10
 static_assert(sizeof(OpusParametersEx) == 0x10, "OpusParametersEx has the wrong size!");
 
@@ -40,7 +40,7 @@ struct OpusMultiStreamParametersEx {
     /* 0x08 */ u32 total_stream_count;
     /* 0x0C */ u32 stereo_stream_count;
     /* 0x10 */ bool use_large_frame_size;
-    /* 0x11 */ INSERT_PADDING_BYTES(7);
+    /* 0x11 */ INSERT_PADDING_BYTES_NOINIT(7);
     /* 0x18 */ std::array<u8, OpusStreamCountMax + 1> mappings;
 }; // size = 0x118
 static_assert(sizeof(OpusMultiStreamParametersEx) == 0x118,

src/audio_core/renderer/audio_device.cpp

@@ -36,8 +36,7 @@ AudioDevice::AudioDevice(Core::System& system, const u64 applet_resource_user_id
     : output_sink{system.AudioCore().GetOutputSink()},
       applet_resource_user_id{applet_resource_user_id_}, user_revision{revision} {}
 
-u32 AudioDevice::ListAudioDeviceName(std::vector<AudioDeviceName>& out_buffer,
+u32 AudioDevice::ListAudioDeviceName(std::span<AudioDeviceName> out_buffer) const {
-                                     const size_t max_count) const {
     std::span<const AudioDeviceName> names{};
 
     if (CheckFeatureSupported(SupportTags::AudioUsbDeviceOutput, user_revision)) {
@@ -46,19 +45,18 @@ u32 AudioDevice::ListAudioDeviceName(std::vector<AudioDeviceName>& out_buffer,
         names = device_names;
     }
 
-    const u32 out_count{static_cast<u32>(std::min(max_count, names.size()))};
+    const u32 out_count{static_cast<u32>(std::min(out_buffer.size(), names.size()))};
     for (u32 i = 0; i < out_count; i++) {
-        out_buffer.push_back(names[i]);
+        out_buffer[i] = names[i];
     }
     return out_count;
 }
 
-u32 AudioDevice::ListAudioOutputDeviceName(std::vector<AudioDeviceName>& out_buffer,
+u32 AudioDevice::ListAudioOutputDeviceName(std::span<AudioDeviceName> out_buffer) const {
-                                           const size_t max_count) const {
+    const u32 out_count{static_cast<u32>(std::min(out_buffer.size(), output_device_names.size()))};
-    const u32 out_count{static_cast<u32>(std::min(max_count, output_device_names.size()))};
 
     for (u32 i = 0; i < out_count; i++) {
-        out_buffer.push_back(output_device_names[i]);
+        out_buffer[i] = output_device_names[i];
     }
     return out_count;
 }

src/audio_core/renderer/audio_device.h

@@ -36,20 +36,18 @@ public:
      * Get a list of the available output devices.
      *
      * @param out_buffer - Output buffer to write the available device names.
-     * @param max_count  - Maximum number of devices to write (count of out_buffer).
      * @return Number of device names written.
      */
-    u32 ListAudioDeviceName(std::vector<AudioDeviceName>& out_buffer, size_t max_count) const;
+    u32 ListAudioDeviceName(std::span<AudioDeviceName> out_buffer) const;
 
     /**
      * Get a list of the available output devices.
      * Different to above somehow...
      *
      * @param out_buffer - Output buffer to write the available device names.
-     * @param max_count  - Maximum number of devices to write (count of out_buffer).
      * @return Number of device names written.
      */
-    u32 ListAudioOutputDeviceName(std::vector<AudioDeviceName>& out_buffer, size_t max_count) const;
+    u32 ListAudioOutputDeviceName(std::span<AudioDeviceName> out_buffer) const;
 
     /**
      * Set the volume of all streams in the backend sink.

src/audio_core/renderer/audio_renderer.cpp

@@ -17,9 +17,8 @@ Renderer::Renderer(Core::System& system_, Manager& manager_, Kernel::KEvent* ren
 
 Result Renderer::Initialize(const AudioRendererParameterInternal& params,
                             Kernel::KTransferMemory* transfer_memory,
-                            const u64 transfer_memory_size, const u32 process_handle,
+                            const u64 transfer_memory_size, Kernel::KProcess* process_handle,
-                            Kernel::KProcess& process, const u64 applet_resource_user_id,
+                            const u64 applet_resource_user_id, const s32 session_id) {
-                            const s32 session_id) {
     if (params.execution_mode == ExecutionMode::Auto) {
         if (!manager.AddSystem(system)) {
             LOG_ERROR(Service_Audio,
@@ -30,7 +29,7 @@ Result Renderer::Initialize(const AudioRendererParameterInternal& params,
     }
 
     initialized = true;
-    system.Initialize(params, transfer_memory, transfer_memory_size, process_handle, process,
+    system.Initialize(params, transfer_memory, transfer_memory_size, process_handle,
                       applet_resource_user_id, session_id);
 
     return ResultSuccess;

src/audio_core/renderer/audio_renderer.h

@@ -38,14 +38,14 @@ public:
      * @param params                  - Input parameters to initialize the system with.
      * @param transfer_memory         - Game-supplied memory for all workbuffers. Unused.
      * @param transfer_memory_size    - Size of the transfer memory. Unused.
-     * @param process_handle          - Process handle, also used for memory. Unused.
+     * @param process_handle          - Process handle, also used for memory.
      * @param applet_resource_user_id - Applet id for this renderer. Unused.
      * @param session_id              - Session id of this renderer.
      * @return Result code.
      */
     Result Initialize(const AudioRendererParameterInternal& params,
                       Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size,
-                      u32 process_handle, Kernel::KProcess& process, u64 applet_resource_user_id,
+                      Kernel::KProcess* process_handle, u64 applet_resource_user_id,
                       s32 session_id);
 
     /**

src/audio_core/renderer/behavior/info_updater.cpp

@@ -18,7 +18,7 @@
 namespace AudioCore::Renderer {
 
 InfoUpdater::InfoUpdater(std::span<const u8> input_, std::span<u8> output_,
-                         const u32 process_handle_, BehaviorInfo& behaviour_)
+                         Kernel::KProcess* process_handle_, BehaviorInfo& behaviour_)
     : input{input_.data() + sizeof(UpdateDataHeader)},
       input_origin{input_}, output{output_.data() + sizeof(UpdateDataHeader)},
       output_origin{output_}, in_header{reinterpret_cast<const UpdateDataHeader*>(

src/audio_core/renderer/behavior/info_updater.h

@@ -8,6 +8,10 @@
 #include "common/common_types.h"
 #include "core/hle/service/audio/errors.h"
 
+namespace Kernel {
+class KProcess;
+}
+
 namespace AudioCore::Renderer {
 class BehaviorInfo;
 class VoiceContext;
@@ -39,8 +43,8 @@ class InfoUpdater {
     static_assert(sizeof(UpdateDataHeader) == 0x40, "UpdateDataHeader has the wrong size!");
 
 public:
-    explicit InfoUpdater(std::span<const u8> input, std::span<u8> output, u32 process_handle,
+    explicit InfoUpdater(std::span<const u8> input, std::span<u8> output,
-                         BehaviorInfo& behaviour);
+                         Kernel::KProcess* process_handle, BehaviorInfo& behaviour);
 
     /**
      * Update the voice channel resources.
@@ -197,7 +201,7 @@ private:
     /// Expected output size, see CheckConsumedSize
     u64 expected_output_size;
     /// Unused
-    u32 process_handle;
+    Kernel::KProcess* process_handle;
     /// Behaviour
     BehaviorInfo& behaviour;
 };

src/audio_core/renderer/memory/pool_mapper.cpp

@@ -8,11 +8,11 @@
 
 namespace AudioCore::Renderer {
 
-PoolMapper::PoolMapper(u32 process_handle_, bool force_map_)
+PoolMapper::PoolMapper(Kernel::KProcess* process_handle_, bool force_map_)
     : process_handle{process_handle_}, force_map{force_map_} {}
 
-PoolMapper::PoolMapper(u32 process_handle_, std::span<MemoryPoolInfo> pool_infos_, u32 pool_count_,
+PoolMapper::PoolMapper(Kernel::KProcess* process_handle_, std::span<MemoryPoolInfo> pool_infos_,
-                       bool force_map_)
+                       u32 pool_count_, bool force_map_)
     : process_handle{process_handle_}, pool_infos{pool_infos_.data()},
       pool_count{pool_count_}, force_map{force_map_} {}
 
@@ -106,15 +106,17 @@ bool PoolMapper::IsForceMapEnabled() const {
     return force_map;
 }
 
-u32 PoolMapper::GetProcessHandle(const MemoryPoolInfo* pool) const {
+Kernel::KProcess* PoolMapper::GetProcessHandle(const MemoryPoolInfo* pool) const {
     switch (pool->GetLocation()) {
     case MemoryPoolInfo::Location::CPU:
         return process_handle;
     case MemoryPoolInfo::Location::DSP:
-        return Kernel::Svc::CurrentProcess;
+        // return Kernel::Svc::CurrentProcess;
+        return nullptr;
     }
     LOG_WARNING(Service_Audio, "Invalid MemoryPoolInfo location!");
-    return Kernel::Svc::CurrentProcess;
+    // return Kernel::Svc::CurrentProcess;
+    return nullptr;
 }
 
 bool PoolMapper::Map([[maybe_unused]] const u32 handle, [[maybe_unused]] const CpuAddr cpu_addr,
@@ -147,14 +149,14 @@ bool PoolMapper::Unmap([[maybe_unused]] const u32 handle, [[maybe_unused]] const
 }
 
 bool PoolMapper::Unmap(MemoryPoolInfo& pool) const {
-    [[maybe_unused]] u32 handle{0};
+    [[maybe_unused]] Kernel::KProcess* handle{};
 
     switch (pool.GetLocation()) {
     case MemoryPoolInfo::Location::CPU:
         handle = process_handle;
         break;
     case MemoryPoolInfo::Location::DSP:
-        handle = Kernel::Svc::CurrentProcess;
+        // handle = Kernel::Svc::CurrentProcess;
         break;
     }
     // nn::audio::dsp::UnmapUserPointer(handle, pool->cpu_address, pool->size);

src/audio_core/renderer/memory/pool_mapper.h

@@ -10,6 +10,10 @@
 #include "common/common_types.h"
 #include "core/hle/service/audio/errors.h"
 
+namespace Kernel {
+class KProcess;
+}
+
 namespace AudioCore::Renderer {
 class AddressInfo;
 
@@ -18,9 +22,9 @@ class AddressInfo;
  */
 class PoolMapper {
 public:
-    explicit PoolMapper(u32 process_handle, bool force_map);
+    explicit PoolMapper(Kernel::KProcess* process_handle, bool force_map);
-    explicit PoolMapper(u32 process_handle, std::span<MemoryPoolInfo> pool_infos, u32 pool_count,
+    explicit PoolMapper(Kernel::KProcess* process_handle, std::span<MemoryPoolInfo> pool_infos,
-                        bool force_map);
+                        u32 pool_count, bool force_map);
 
     /**
      * Clear the usage state for all given pools.
@@ -98,7 +102,7 @@ public:
      * @return CurrentProcessHandle if location == DSP,
      *         the PoolMapper's process_handle if location == CPU
      */
-    u32 GetProcessHandle(const MemoryPoolInfo* pool) const;
+    Kernel::KProcess* GetProcessHandle(const MemoryPoolInfo* pool) const;
 
     /**
      * Map the given region with the given handle. This is a no-op.
@@ -167,7 +171,7 @@ public:
 
 private:
     /// Process handle for this mapper, used when location == CPU
-    u32 process_handle;
+    Kernel::KProcess* process_handle{};
     /// List of memory pools assigned to this mapper
     MemoryPoolInfo* pool_infos{};
     /// The number of pools

src/audio_core/renderer/system.cpp

@@ -102,8 +102,8 @@ System::System(Core::System& core_, Kernel::KEvent* adsp_rendered_event_)
 
 Result System::Initialize(const AudioRendererParameterInternal& params,
                           Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size,
-                          u32 process_handle_, Kernel::KProcess& process_,
+                          Kernel::KProcess* process_handle_, u64 applet_resource_user_id_,
-                          u64 applet_resource_user_id_, s32 session_id_) {
+                          s32 session_id_) {
     if (!CheckValidRevision(params.revision)) {
         return Service::Audio::ResultInvalidRevision;
     }
@@ -119,7 +119,6 @@ Result System::Initialize(const AudioRendererParameterInternal& params,
     behavior.SetUserLibRevision(params.revision);
 
     process_handle = process_handle_;
-    process = &process_;
     applet_resource_user_id = applet_resource_user_id_;
     session_id = session_id_;
 
@@ -132,7 +131,8 @@ Result System::Initialize(const AudioRendererParameterInternal& params,
     render_device = params.rendering_device;
     execution_mode = params.execution_mode;
 
-    process->GetMemory().ZeroBlock(transfer_memory->GetSourceAddress(), transfer_memory_size);
+    process_handle->GetMemory().ZeroBlock(transfer_memory->GetSourceAddress(),
+                                          transfer_memory_size);
 
     // Note: We're not actually using the transfer memory because it's a pain to code for.
     // Allocate the memory normally instead and hope the game doesn't try to read anything back
@@ -616,7 +616,7 @@ void System::SendCommandToDsp() {
                 static_cast<u64>((time_limit_percent / 100) * 2'880'000.0 *
                                  (static_cast<f32>(render_time_limit_percent) / 100.0f))};
             audio_renderer.SetCommandBuffer(session_id, translated_addr, command_size, time_limit,
-                                            applet_resource_user_id, process,
+                                            applet_resource_user_id, process_handle,
                                             reset_command_buffers);
             reset_command_buffers = false;
             command_buffer_size = command_size;

src/audio_core/renderer/system.h

@@ -74,14 +74,14 @@ public:
      * @param params                  - Input parameters to initialize the system with.
      * @param transfer_memory         - Game-supplied memory for all workbuffers. Unused.
      * @param transfer_memory_size    - Size of the transfer memory. Unused.
-     * @param process_handle          - Process handle, also used for memory. Unused.
+     * @param process_handle          - Process handle, also used for memory.
      * @param applet_resource_user_id - Applet id for this renderer. Unused.
      * @param session_id              - Session id of this renderer.
      * @return Result code.
      */
     Result Initialize(const AudioRendererParameterInternal& params,
                       Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size,
-                      u32 process_handle, Kernel::KProcess& process, u64 applet_resource_user_id,
+                      Kernel::KProcess* process_handle, u64 applet_resource_user_id,
                       s32 session_id);
 
     /**
@@ -278,9 +278,7 @@ private:
     /// Does what locks do
     std::mutex lock{};
     /// Process this audio render is operating within, used for memory reads/writes.
-    Kernel::KProcess* process{};
+    Kernel::KProcess* process_handle{};
-    /// Handle for the process for this system, unused
-    u32 process_handle{};
     /// Applet resource id for this system, unused
     u64 applet_resource_user_id{};
     /// Controls performance input and output

src/common/string_util.cpp

@@ -38,6 +38,10 @@ std::string StringFromBuffer(std::span<const u8> data) {
     return std::string(data.begin(), std::find(data.begin(), data.end(), '\0'));
 }
 
+std::string StringFromBuffer(std::span<const char> data) {
+    return std::string(data.begin(), std::find(data.begin(), data.end(), '\0'));
+}
+
 // Turns "  hej " into "hej". Also handles tabs.
 std::string StripSpaces(const std::string& str) {
     const std::size_t s = str.find_first_not_of(" \t\r\n");

src/common/string_util.h

@@ -19,6 +19,7 @@ namespace Common {
 [[nodiscard]] std::string ToUpper(std::string str);
 
 [[nodiscard]] std::string StringFromBuffer(std::span<const u8> data);
+[[nodiscard]] std::string StringFromBuffer(std::span<const char> data);
 
 [[nodiscard]] std::string StripSpaces(const std::string& s);
 [[nodiscard]] std::string StripQuotes(const std::string& s);

src/core/CMakeLists.txt

@@ -58,6 +58,7 @@ add_library(core STATIC
     file_sys/fs_operate_range.h
     file_sys/fs_path.h
     file_sys/fs_path_utility.h
+    file_sys/fs_save_data_types.h
     file_sys/fs_string_util.h
     file_sys/fsa/fs_i_directory.h
     file_sys/fsa/fs_i_file.h
@@ -493,23 +494,33 @@ add_library(core STATIC
     hle/service/apm/apm_controller.h
     hle/service/apm/apm_interface.cpp
     hle/service/apm/apm_interface.h
-    hle/service/audio/audin_u.cpp
-    hle/service/audio/audin_u.h
-    hle/service/audio/audio.cpp
-    hle/service/audio/audio.h
     hle/service/audio/audio_controller.cpp
     hle/service/audio/audio_controller.h
-    hle/service/audio/audout_u.cpp
+    hle/service/audio/audio_device.cpp
-    hle/service/audio/audout_u.h
+    hle/service/audio/audio_device.h
-    hle/service/audio/audrec_a.cpp
+    hle/service/audio/audio_in_manager.cpp
-    hle/service/audio/audrec_a.h
+    hle/service/audio/audio_in_manager.h
-    hle/service/audio/audrec_u.cpp
+    hle/service/audio/audio_in.cpp
-    hle/service/audio/audrec_u.h
+    hle/service/audio/audio_in.h
-    hle/service/audio/audren_u.cpp
+    hle/service/audio/audio_out_manager.cpp
-    hle/service/audio/audren_u.h
+    hle/service/audio/audio_out_manager.h
+    hle/service/audio/audio_out.cpp
+    hle/service/audio/audio_out.h
+    hle/service/audio/audio_renderer_manager.cpp
+    hle/service/audio/audio_renderer_manager.h
+    hle/service/audio/audio_renderer.cpp
+    hle/service/audio/audio_renderer.h
+    hle/service/audio/audio.cpp
+    hle/service/audio/audio.h
     hle/service/audio/errors.h
-    hle/service/audio/hwopus.cpp
+    hle/service/audio/final_output_recorder_manager_for_applet.cpp
-    hle/service/audio/hwopus.h
+    hle/service/audio/final_output_recorder_manager_for_applet.h
+    hle/service/audio/final_output_recorder_manager.cpp
+    hle/service/audio/final_output_recorder_manager.h
+    hle/service/audio/hardware_opus_decoder_manager.cpp
+    hle/service/audio/hardware_opus_decoder_manager.h
+    hle/service/audio/hardware_opus_decoder.cpp
+    hle/service/audio/hardware_opus_decoder.h
     hle/service/bcat/backend/backend.cpp
     hle/service/bcat/backend/backend.h
     hle/service/bcat/bcat.cpp
@@ -599,6 +610,10 @@ add_library(core STATIC
     hle/service/filesystem/fsp/fs_i_file.h
     hle/service/filesystem/fsp/fs_i_filesystem.cpp
     hle/service/filesystem/fsp/fs_i_filesystem.h
+    hle/service/filesystem/fsp/fs_i_multi_commit_manager.cpp
+    hle/service/filesystem/fsp/fs_i_multi_commit_manager.h
+    hle/service/filesystem/fsp/fs_i_save_data_info_reader.cpp
+    hle/service/filesystem/fsp/fs_i_save_data_info_reader.h
     hle/service/filesystem/fsp/fs_i_storage.cpp
     hle/service/filesystem/fsp/fs_i_storage.h
     hle/service/filesystem/fsp/fsp_ldr.cpp
@@ -607,7 +622,7 @@ add_library(core STATIC
     hle/service/filesystem/fsp/fsp_pr.h
     hle/service/filesystem/fsp/fsp_srv.cpp
     hle/service/filesystem/fsp/fsp_srv.h
-    hle/service/filesystem/fsp/fsp_util.h
+    hle/service/filesystem/fsp/fsp_types.h
     hle/service/filesystem/romfs_controller.cpp
     hle/service/filesystem/romfs_controller.h
     hle/service/filesystem/save_data_controller.cpp
@@ -864,8 +879,20 @@ add_library(core STATIC
     hle/service/nvnflinger/ui/graphic_buffer.cpp
     hle/service/nvnflinger/ui/graphic_buffer.h
     hle/service/nvnflinger/window.h
+    hle/service/olsc/daemon_controller.cpp
+    hle/service/olsc/daemon_controller.h
+    hle/service/olsc/native_handle_holder.cpp
+    hle/service/olsc/native_handle_holder.h
+    hle/service/olsc/olsc_service_for_application.cpp
+    hle/service/olsc/olsc_service_for_application.h
+    hle/service/olsc/olsc_service_for_system_service.cpp
+    hle/service/olsc/olsc_service_for_system_service.h
     hle/service/olsc/olsc.cpp
     hle/service/olsc/olsc.h
+    hle/service/olsc/remote_storage_controller.cpp
+    hle/service/olsc/remote_storage_controller.h
+    hle/service/olsc/transfer_task_list_controller.cpp
+    hle/service/olsc/transfer_task_list_controller.h
     hle/service/omm/omm.cpp
     hle/service/omm/omm.h
     hle/service/omm/operation_mode_manager.cpp
@@ -885,16 +912,35 @@ add_library(core STATIC
     hle/service/os/mutex.h
     hle/service/pcie/pcie.cpp
     hle/service/pcie/pcie.h
+    hle/service/pctl/parental_control_service_factory.cpp
+    hle/service/pctl/parental_control_service_factory.h
+    hle/service/pctl/parental_control_service.cpp
+    hle/service/pctl/parental_control_service.h
     hle/service/pctl/pctl.cpp
     hle/service/pctl/pctl.h
-    hle/service/pctl/pctl_module.cpp
+    hle/service/pctl/pctl_results.h
-    hle/service/pctl/pctl_module.h
+    hle/service/pctl/pctl_types.h
     hle/service/pcv/pcv.cpp
     hle/service/pcv/pcv.h
     hle/service/pm/pm.cpp
     hle/service/pm/pm.h
     hle/service/prepo/prepo.cpp
     hle/service/prepo/prepo.h
+    hle/service/psc/ovln/ovln_types.h
+    hle/service/psc/ovln/receiver_service.cpp
+    hle/service/psc/ovln/receiver_service.h
+    hle/service/psc/ovln/receiver.cpp
+    hle/service/psc/ovln/receiver.h
+    hle/service/psc/ovln/sender_service.cpp
+    hle/service/psc/ovln/sender_service.h
+    hle/service/psc/ovln/sender.cpp
+    hle/service/psc/ovln/sender.h
+    hle/service/psc/pm_control.cpp
+    hle/service/psc/pm_control.h
+    hle/service/psc/pm_module.cpp
+    hle/service/psc/pm_module.h
+    hle/service/psc/pm_service.cpp
+    hle/service/psc/pm_service.h
     hle/service/psc/psc.cpp
     hle/service/psc/psc.h
     hle/service/psc/time/alarms.cpp

src/core/file_sys/fs_save_data_types.h

@@ -0,0 +1,175 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <fmt/format.h>
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+
+namespace FileSys {
+
+using SaveDataId = u64;
+using SystemSaveDataId = u64;
+using SystemBcatSaveDataId = SystemSaveDataId;
+using ProgramId = u64;
+
+enum class SaveDataSpaceId : u8 {
+    System = 0,
+    User = 1,
+    SdSystem = 2,
+    Temporary = 3,
+    SdUser = 4,
+
+    ProperSystem = 100,
+    SafeMode = 101,
+};
+
+enum class SaveDataType : u8 {
+    System = 0,
+    Account = 1,
+    Bcat = 2,
+    Device = 3,
+    Temporary = 4,
+    Cache = 5,
+    SystemBcat = 6,
+};
+
+enum class SaveDataRank : u8 {
+    Primary = 0,
+    Secondary = 1,
+};
+
+struct SaveDataSize {
+    u64 normal;
+    u64 journal;
+};
+static_assert(sizeof(SaveDataSize) == 0x10, "SaveDataSize has invalid size.");
+
+using UserId = u128;
+static_assert(std::is_trivially_copyable_v<UserId>, "Data type must be trivially copyable.");
+static_assert(sizeof(UserId) == 0x10, "UserId has invalid size.");
+
+constexpr inline SystemSaveDataId InvalidSystemSaveDataId = 0;
+constexpr inline UserId InvalidUserId = {};
+
+enum class SaveDataFlags : u32 {
+    None = (0 << 0),
+    KeepAfterResettingSystemSaveData = (1 << 0),
+    KeepAfterRefurbishment = (1 << 1),
+    KeepAfterResettingSystemSaveDataWithoutUserSaveData = (1 << 2),
+    NeedsSecureDelete = (1 << 3),
+};
+
+enum class SaveDataMetaType : u8 {
+    None = 0,
+    Thumbnail = 1,
+    ExtensionContext = 2,
+};
+
+struct SaveDataMetaInfo {
+    u32 size;
+    SaveDataMetaType type;
+    INSERT_PADDING_BYTES(0xB);
+};
+static_assert(std::is_trivially_copyable_v<SaveDataMetaInfo>,
+              "Data type must be trivially copyable.");
+static_assert(sizeof(SaveDataMetaInfo) == 0x10, "SaveDataMetaInfo has invalid size.");
+
+struct SaveDataCreationInfo {
+    s64 size;
+    s64 journal_size;
+    s64 block_size;
+    u64 owner_id;
+    u32 flags;
+    SaveDataSpaceId space_id;
+    bool pseudo;
+    INSERT_PADDING_BYTES(0x1A);
+};
+static_assert(std::is_trivially_copyable_v<SaveDataCreationInfo>,
+              "Data type must be trivially copyable.");
+static_assert(sizeof(SaveDataCreationInfo) == 0x40, "SaveDataCreationInfo has invalid size.");
+
+struct SaveDataAttribute {
+    ProgramId program_id;
+    UserId user_id;
+    SystemSaveDataId system_save_data_id;
+    SaveDataType type;
+    SaveDataRank rank;
+    u16 index;
+    INSERT_PADDING_BYTES(0x1C);
+
+    static constexpr SaveDataAttribute Make(ProgramId program_id, SaveDataType type, UserId user_id,
+                                            SystemSaveDataId system_save_data_id, u16 index,
+                                            SaveDataRank rank) {
+        return {
+            .program_id = program_id,
+            .user_id = user_id,
+            .system_save_data_id = system_save_data_id,
+            .type = type,
+            .rank = rank,
+            .index = index,
+        };
+    }
+
+    static constexpr SaveDataAttribute Make(ProgramId program_id, SaveDataType type, UserId user_id,
+                                            SystemSaveDataId system_save_data_id, u16 index) {
+        return Make(program_id, type, user_id, system_save_data_id, index, SaveDataRank::Primary);
+    }
+
+    static constexpr SaveDataAttribute Make(ProgramId program_id, SaveDataType type, UserId user_id,
+                                            SystemSaveDataId system_save_data_id) {
+        return Make(program_id, type, user_id, system_save_data_id, 0, SaveDataRank::Primary);
+    }
+
+    std::string DebugInfo() const {
+        return fmt::format(
+            "[title_id={:016X}, user_id={:016X}{:016X}, save_id={:016X}, type={:02X}, "
+            "rank={}, index={}]",
+            program_id, user_id[1], user_id[0], system_save_data_id, static_cast<u8>(type),
+            static_cast<u8>(rank), index);
+    }
+};
+static_assert(sizeof(SaveDataAttribute) == 0x40);
+static_assert(std::is_trivially_destructible<SaveDataAttribute>::value);
+
+constexpr inline bool operator<(const SaveDataAttribute& lhs, const SaveDataAttribute& rhs) {
+    return std::tie(lhs.program_id, lhs.user_id, lhs.system_save_data_id, lhs.index, lhs.rank) <
+           std::tie(rhs.program_id, rhs.user_id, rhs.system_save_data_id, rhs.index, rhs.rank);
+}
+
+constexpr inline bool operator==(const SaveDataAttribute& lhs, const SaveDataAttribute& rhs) {
+    return std::tie(lhs.program_id, lhs.user_id, lhs.system_save_data_id, lhs.type, lhs.rank,
+                    lhs.index) == std::tie(rhs.program_id, rhs.user_id, rhs.system_save_data_id,
+                                           rhs.type, rhs.rank, rhs.index);
+}
+
+constexpr inline bool operator!=(const SaveDataAttribute& lhs, const SaveDataAttribute& rhs) {
+    return !(lhs == rhs);
+}
+
+struct SaveDataExtraData {
+    SaveDataAttribute attr;
+    u64 owner_id;
+    s64 timestamp;
+    u32 flags;
+    INSERT_PADDING_BYTES(4);
+    s64 available_size;
+    s64 journal_size;
+    s64 commit_id;
+    INSERT_PADDING_BYTES(0x190);
+};
+static_assert(sizeof(SaveDataExtraData) == 0x200, "SaveDataExtraData has invalid size.");
+static_assert(std::is_trivially_copyable_v<SaveDataExtraData>,
+              "Data type must be trivially copyable.");
+
+struct HashSalt {
+    static constexpr size_t Size = 32;
+
+    std::array<u8, Size> value;
+};
+static_assert(std::is_trivially_copyable_v<HashSalt>, "Data type must be trivially copyable.");
+static_assert(sizeof(HashSalt) == HashSalt::Size);
+
+} // namespace FileSys

src/core/file_sys/savedata_factory.cpp

@@ -14,48 +14,11 @@ namespace FileSys {
 
 namespace {
 
-void PrintSaveDataAttributeWarnings(SaveDataAttribute meta) {
-    if (meta.type == SaveDataType::SystemSaveData || meta.type == SaveDataType::SaveData) {
-        if (meta.zero_1 != 0) {
-            LOG_WARNING(Service_FS,
-                        "Possibly incorrect SaveDataAttribute, type is "
-                        "SystemSaveData||SaveData but offset 0x28 is non-zero ({:016X}).",
-                        meta.zero_1);
-        }
-        if (meta.zero_2 != 0) {
-            LOG_WARNING(Service_FS,
-                        "Possibly incorrect SaveDataAttribute, type is "
-                        "SystemSaveData||SaveData but offset 0x30 is non-zero ({:016X}).",
-                        meta.zero_2);
-        }
-        if (meta.zero_3 != 0) {
-            LOG_WARNING(Service_FS,
-                        "Possibly incorrect SaveDataAttribute, type is "
-                        "SystemSaveData||SaveData but offset 0x38 is non-zero ({:016X}).",
-                        meta.zero_3);
-        }
-    }
-
-    if (meta.type == SaveDataType::SystemSaveData && meta.title_id != 0) {
-        LOG_WARNING(Service_FS,
-                    "Possibly incorrect SaveDataAttribute, type is SystemSaveData but title_id is "
-                    "non-zero ({:016X}).",
-                    meta.title_id);
-    }
-
-    if (meta.type == SaveDataType::DeviceSaveData && meta.user_id != u128{0, 0}) {
-        LOG_WARNING(Service_FS,
-                    "Possibly incorrect SaveDataAttribute, type is DeviceSaveData but user_id is "
-                    "non-zero ({:016X}{:016X})",
-                    meta.user_id[1], meta.user_id[0]);
-    }
-}
-
 bool ShouldSaveDataBeAutomaticallyCreated(SaveDataSpaceId space, const SaveDataAttribute& attr) {
-    return attr.type == SaveDataType::CacheStorage || attr.type == SaveDataType::TemporaryStorage ||
+    return attr.type == SaveDataType::Cache || attr.type == SaveDataType::Temporary ||
-           (space == SaveDataSpaceId::NandUser && ///< Normal Save Data -- Current Title & User
+           (space == SaveDataSpaceId::User && ///< Normal Save Data -- Current Title & User
-            (attr.type == SaveDataType::SaveData || attr.type == SaveDataType::DeviceSaveData) &&
+            (attr.type == SaveDataType::Account || attr.type == SaveDataType::Device) &&
-            attr.title_id == 0 && attr.save_id == 0);
+            attr.program_id == 0 && attr.system_save_data_id == 0);
 }
 
 std::string GetFutureSaveDataPath(SaveDataSpaceId space_id, SaveDataType type, u64 title_id,
@@ -63,7 +26,7 @@ std::string GetFutureSaveDataPath(SaveDataSpaceId space_id, SaveDataType type, u
     // Only detect nand user saves.
     const auto space_id_path = [space_id]() -> std::string_view {
         switch (space_id) {
-        case SaveDataSpaceId::NandUser:
+        case SaveDataSpaceId::User:
             return "/user/save";
         default:
             return "";
@@ -79,9 +42,9 @@ std::string GetFutureSaveDataPath(SaveDataSpaceId space_id, SaveDataType type, u
 
     // Only detect account/device saves from the future location.
     switch (type) {
-    case SaveDataType::SaveData:
+    case SaveDataType::Account:
         return fmt::format("{}/account/{}/{:016X}/0", space_id_path, uuid.RawString(), title_id);
-    case SaveDataType::DeviceSaveData:
+    case SaveDataType::Device:
         return fmt::format("{}/device/{:016X}/0", space_id_path, title_id);
     default:
         return "";
@@ -90,13 +53,6 @@ std::string GetFutureSaveDataPath(SaveDataSpaceId space_id, SaveDataType type, u
 
 } // Anonymous namespace
 
-std::string SaveDataAttribute::DebugInfo() const {
-    return fmt::format("[title_id={:016X}, user_id={:016X}{:016X}, save_id={:016X}, type={:02X}, "
-                       "rank={}, index={}]",
-                       title_id, user_id[1], user_id[0], save_id, static_cast<u8>(type),
-                       static_cast<u8>(rank), index);
-}
-
 SaveDataFactory::SaveDataFactory(Core::System& system_, ProgramId program_id_,
                                  VirtualDir save_directory_)
     : system{system_}, program_id{program_id_}, dir{std::move(save_directory_)} {
@@ -108,18 +64,16 @@ SaveDataFactory::SaveDataFactory(Core::System& system_, ProgramId program_id_,
 SaveDataFactory::~SaveDataFactory() = default;
 
 VirtualDir SaveDataFactory::Create(SaveDataSpaceId space, const SaveDataAttribute& meta) const {
-    PrintSaveDataAttributeWarnings(meta);
+    const auto save_directory = GetFullPath(program_id, dir, space, meta.type, meta.program_id,
-
+                                            meta.user_id, meta.system_save_data_id);
-    const auto save_directory =
-        GetFullPath(program_id, dir, space, meta.type, meta.title_id, meta.user_id, meta.save_id);
 
     return dir->CreateDirectoryRelative(save_directory);
 }
 
 VirtualDir SaveDataFactory::Open(SaveDataSpaceId space, const SaveDataAttribute& meta) const {
 
-    const auto save_directory =
+    const auto save_directory = GetFullPath(program_id, dir, space, meta.type, meta.program_id,
-        GetFullPath(program_id, dir, space, meta.type, meta.title_id, meta.user_id, meta.save_id);
+                                            meta.user_id, meta.system_save_data_id);
 
     auto out = dir->GetDirectoryRelative(save_directory);
 
@@ -136,11 +90,11 @@ VirtualDir SaveDataFactory::GetSaveDataSpaceDirectory(SaveDataSpaceId space) con
 
 std::string SaveDataFactory::GetSaveDataSpaceIdPath(SaveDataSpaceId space) {
     switch (space) {
-    case SaveDataSpaceId::NandSystem:
+    case SaveDataSpaceId::System:
         return "/system/";
-    case SaveDataSpaceId::NandUser:
+    case SaveDataSpaceId::User:
         return "/user/";
-    case SaveDataSpaceId::TemporaryStorage:
+    case SaveDataSpaceId::Temporary:
         return "/temp/";
     default:
         ASSERT_MSG(false, "Unrecognized SaveDataSpaceId: {:02X}", static_cast<u8>(space));
@@ -153,7 +107,7 @@ std::string SaveDataFactory::GetFullPath(ProgramId program_id, VirtualDir dir,
                                          u128 user_id, u64 save_id) {
     // According to switchbrew, if a save is of type SaveData and the title id field is 0, it should
     // be interpreted as the title id of the current process.
-    if (type == SaveDataType::SaveData || type == SaveDataType::DeviceSaveData) {
+    if (type == SaveDataType::Account || type == SaveDataType::Device) {
         if (title_id == 0) {
             title_id = program_id;
         }
@@ -173,16 +127,16 @@ std::string SaveDataFactory::GetFullPath(ProgramId program_id, VirtualDir dir,
     std::string out = GetSaveDataSpaceIdPath(space);
 
     switch (type) {
-    case SaveDataType::SystemSaveData:
+    case SaveDataType::System:
         return fmt::format("{}save/{:016X}/{:016X}{:016X}", out, save_id, user_id[1], user_id[0]);
-    case SaveDataType::SaveData:
+    case SaveDataType::Account:
-    case SaveDataType::DeviceSaveData:
+    case SaveDataType::Device:
         return fmt::format("{}save/{:016X}/{:016X}{:016X}/{:016X}", out, 0, user_id[1], user_id[0],
                            title_id);
-    case SaveDataType::TemporaryStorage:
+    case SaveDataType::Temporary:
         return fmt::format("{}{:016X}/{:016X}{:016X}/{:016X}", out, 0, user_id[1], user_id[0],
                            title_id);
-    case SaveDataType::CacheStorage:
+    case SaveDataType::Cache:
         return fmt::format("{}save/cache/{:016X}", out, title_id);
     default:
         ASSERT_MSG(false, "Unrecognized SaveDataType: {:02X}", static_cast<u8>(type));
@@ -202,7 +156,7 @@ std::string SaveDataFactory::GetUserGameSaveDataRoot(u128 user_id, bool future)
 SaveDataSize SaveDataFactory::ReadSaveDataSize(SaveDataType type, u64 title_id,
                                                u128 user_id) const {
     const auto path =
-        GetFullPath(program_id, dir, SaveDataSpaceId::NandUser, type, title_id, user_id, 0);
+        GetFullPath(program_id, dir, SaveDataSpaceId::User, type, title_id, user_id, 0);
     const auto relative_dir = GetOrCreateDirectoryRelative(dir, path);
 
     const auto size_file = relative_dir->GetFile(GetSaveDataSizeFileName());
@@ -221,7 +175,7 @@ SaveDataSize SaveDataFactory::ReadSaveDataSize(SaveDataType type, u64 title_id,
 void SaveDataFactory::WriteSaveDataSize(SaveDataType type, u64 title_id, u128 user_id,
                                         SaveDataSize new_value) const {
     const auto path =
-        GetFullPath(program_id, dir, SaveDataSpaceId::NandUser, type, title_id, user_id, 0);
+        GetFullPath(program_id, dir, SaveDataSpaceId::User, type, title_id, user_id, 0);
     const auto relative_dir = GetOrCreateDirectoryRelative(dir, path);
 
     const auto size_file = relative_dir->CreateFile(GetSaveDataSizeFileName());

src/core/file_sys/savedata_factory.h

@@ -7,6 +7,7 @@
 #include <string>
 #include "common/common_funcs.h"
 #include "common/common_types.h"
+#include "core/file_sys/fs_save_data_types.h"
 #include "core/file_sys/vfs/vfs.h"
 #include "core/hle/result.h"
 
@@ -16,73 +17,6 @@ class System;
 
 namespace FileSys {
 
-enum class SaveDataSpaceId : u8 {
-    NandSystem = 0,
-    NandUser = 1,
-    SdCardSystem = 2,
-    TemporaryStorage = 3,
-    SdCardUser = 4,
-    ProperSystem = 100,
-    SafeMode = 101,
-};
-
-enum class SaveDataType : u8 {
-    SystemSaveData = 0,
-    SaveData = 1,
-    BcatDeliveryCacheStorage = 2,
-    DeviceSaveData = 3,
-    TemporaryStorage = 4,
-    CacheStorage = 5,
-    SystemBcat = 6,
-};
-
-enum class SaveDataRank : u8 {
-    Primary = 0,
-    Secondary = 1,
-};
-
-enum class SaveDataFlags : u32 {
-    None = (0 << 0),
-    KeepAfterResettingSystemSaveData = (1 << 0),
-    KeepAfterRefurbishment = (1 << 1),
-    KeepAfterResettingSystemSaveDataWithoutUserSaveData = (1 << 2),
-    NeedsSecureDelete = (1 << 3),
-};
-
-struct SaveDataAttribute {
-    u64 title_id;
-    u128 user_id;
-    u64 save_id;
-    SaveDataType type;
-    SaveDataRank rank;
-    u16 index;
-    INSERT_PADDING_BYTES_NOINIT(4);
-    u64 zero_1;
-    u64 zero_2;
-    u64 zero_3;
-
-    std::string DebugInfo() const;
-};
-static_assert(sizeof(SaveDataAttribute) == 0x40, "SaveDataAttribute has incorrect size.");
-
-struct SaveDataExtraData {
-    SaveDataAttribute attr;
-    u64 owner_id;
-    s64 timestamp;
-    SaveDataFlags flags;
-    INSERT_PADDING_BYTES_NOINIT(4);
-    s64 available_size;
-    s64 journal_size;
-    s64 commit_id;
-    std::array<u8, 0x190> unused;
-};
-static_assert(sizeof(SaveDataExtraData) == 0x200, "SaveDataExtraData has incorrect size.");
-
-struct SaveDataSize {
-    u64 normal;
-    u64 journal;
-};
-
 constexpr const char* GetSaveDataSizeFileName() {
     return ".yuzu_save_size";
 }

src/core/hle/service/am/service/application_functions.cpp

@@ -123,13 +123,13 @@ Result IApplicationFunctions::EnsureSaveData(Out<u64> out_size, Common::UUID use
     LOG_INFO(Service_AM, "called, uid={}", user_id.FormattedString());
 
     FileSys::SaveDataAttribute attribute{};
-    attribute.title_id = m_applet->program_id;
+    attribute.program_id = m_applet->program_id;
     attribute.user_id = user_id.AsU128();
-    attribute.type = FileSys::SaveDataType::SaveData;
+    attribute.type = FileSys::SaveDataType::Account;
 
     FileSys::VirtualDir save_data{};
     R_TRY(system.GetFileSystemController().OpenSaveDataController()->CreateSaveData(
-        &save_data, FileSys::SaveDataSpaceId::NandUser, attribute));
+        &save_data, FileSys::SaveDataSpaceId::User, attribute));
 
     *out_size = 0;
     R_SUCCEED();

src/core/hle/service/audio/audio.cpp

@@ -2,14 +2,14 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "core/core.h"
-#include "core/hle/service/audio/audin_u.h"
 #include "core/hle/service/audio/audio.h"
 #include "core/hle/service/audio/audio_controller.h"
-#include "core/hle/service/audio/audout_u.h"
+#include "core/hle/service/audio/audio_in_manager.h"
-#include "core/hle/service/audio/audrec_a.h"
+#include "core/hle/service/audio/audio_out_manager.h"
-#include "core/hle/service/audio/audrec_u.h"
+#include "core/hle/service/audio/audio_renderer_manager.h"
-#include "core/hle/service/audio/audren_u.h"
+#include "core/hle/service/audio/final_output_recorder_manager.h"
-#include "core/hle/service/audio/hwopus.h"
+#include "core/hle/service/audio/final_output_recorder_manager_for_applet.h"
+#include "core/hle/service/audio/hardware_opus_decoder_manager.h"
 #include "core/hle/service/server_manager.h"
 #include "core/hle/service/service.h"
 
@@ -19,12 +19,16 @@ void LoopProcess(Core::System& system) {
     auto server_manager = std::make_unique<ServerManager>(system);
 
     server_manager->RegisterNamedService("audctl", std::make_shared<IAudioController>(system));
-    server_manager->RegisterNamedService("audout:u", std::make_shared<AudOutU>(system));
+    server_manager->RegisterNamedService("audin:u", std::make_shared<IAudioInManager>(system));
-    server_manager->RegisterNamedService("audin:u", std::make_shared<AudInU>(system));
+    server_manager->RegisterNamedService("audout:u", std::make_shared<IAudioOutManager>(system));
-    server_manager->RegisterNamedService("audrec:a", std::make_shared<AudRecA>(system));
+    server_manager->RegisterNamedService(
-    server_manager->RegisterNamedService("audrec:u", std::make_shared<AudRecU>(system));
+        "audrec:a", std::make_shared<IFinalOutputRecorderManagerForApplet>(system));
-    server_manager->RegisterNamedService("audren:u", std::make_shared<AudRenU>(system));
+    server_manager->RegisterNamedService("audrec:u",
-    server_manager->RegisterNamedService("hwopus", std::make_shared<HwOpus>(system));
+                                         std::make_shared<IFinalOutputRecorderManager>(system));
+    server_manager->RegisterNamedService("audren:u",
+                                         std::make_shared<IAudioRendererManager>(system));
+    server_manager->RegisterNamedService("hwopus",
+                                         std::make_shared<IHardwareOpusDecoderManager>(system));
     ServerManager::RunServer(std::move(server_manager));
 }
 

src/core/hle/service/audio/audio_controller.cpp

@@ -16,27 +16,27 @@ IAudioController::IAudioController(Core::System& system_)
     static const FunctionInfo functions[] = {
         {0, nullptr, "GetTargetVolume"},
         {1, nullptr, "SetTargetVolume"},
-        {2, C<&IAudioController::GetTargetVolumeMin>, "GetTargetVolumeMin"},
+        {2, D<&IAudioController::GetTargetVolumeMin>, "GetTargetVolumeMin"},
-        {3, C<&IAudioController::GetTargetVolumeMax>, "GetTargetVolumeMax"},
+        {3, D<&IAudioController::GetTargetVolumeMax>, "GetTargetVolumeMax"},
         {4, nullptr, "IsTargetMute"},
         {5, nullptr, "SetTargetMute"},
         {6, nullptr, "IsTargetConnected"},
         {7, nullptr, "SetDefaultTarget"},
         {8, nullptr, "GetDefaultTarget"},
-        {9, C<&IAudioController::GetAudioOutputMode>, "GetAudioOutputMode"},
+        {9, D<&IAudioController::GetAudioOutputMode>, "GetAudioOutputMode"},
-        {10, C<&IAudioController::SetAudioOutputMode>, "SetAudioOutputMode"},
+        {10, D<&IAudioController::SetAudioOutputMode>, "SetAudioOutputMode"},
         {11, nullptr, "SetForceMutePolicy"},
-        {12, C<&IAudioController::GetForceMutePolicy>, "GetForceMutePolicy"},
+        {12, D<&IAudioController::GetForceMutePolicy>, "GetForceMutePolicy"},
-        {13, C<&IAudioController::GetOutputModeSetting>, "GetOutputModeSetting"},
+        {13, D<&IAudioController::GetOutputModeSetting>, "GetOutputModeSetting"},
-        {14, C<&IAudioController::SetOutputModeSetting>, "SetOutputModeSetting"},
+        {14, D<&IAudioController::SetOutputModeSetting>, "SetOutputModeSetting"},
         {15, nullptr, "SetOutputTarget"},
         {16, nullptr, "SetInputTargetForceEnabled"},
-        {17, C<&IAudioController::SetHeadphoneOutputLevelMode>, "SetHeadphoneOutputLevelMode"},
+        {17, D<&IAudioController::SetHeadphoneOutputLevelMode>, "SetHeadphoneOutputLevelMode"},
-        {18, C<&IAudioController::GetHeadphoneOutputLevelMode>, "GetHeadphoneOutputLevelMode"},
+        {18, D<&IAudioController::GetHeadphoneOutputLevelMode>, "GetHeadphoneOutputLevelMode"},
         {19, nullptr, "AcquireAudioVolumeUpdateEventForPlayReport"},
         {20, nullptr, "AcquireAudioOutputDeviceUpdateEventForPlayReport"},
         {21, nullptr, "GetAudioOutputTargetForPlayReport"},
-        {22, nullptr, "NotifyHeadphoneVolumeWarningDisplayedEvent"},
+        {22, D<&IAudioController::NotifyHeadphoneVolumeWarningDisplayedEvent>, "NotifyHeadphoneVolumeWarningDisplayedEvent"},
         {23, nullptr, "SetSystemOutputMasterVolume"},
         {24, nullptr, "GetSystemOutputMasterVolume"},
         {25, nullptr, "GetAudioVolumeDataForPlayReport"},
@@ -44,11 +44,11 @@ IAudioController::IAudioController(Core::System& system_)
         {27, nullptr, "SetVolumeMappingTableForDev"},
         {28, nullptr, "GetAudioOutputChannelCountForPlayReport"},
         {29, nullptr, "BindAudioOutputChannelCountUpdateEventForPlayReport"},
-        {30, C<&IAudioController::SetSpeakerAutoMuteEnabled>, "SetSpeakerAutoMuteEnabled"},
+        {30, D<&IAudioController::SetSpeakerAutoMuteEnabled>, "SetSpeakerAutoMuteEnabled"},
-        {31, C<&IAudioController::IsSpeakerAutoMuteEnabled>, "IsSpeakerAutoMuteEnabled"},
+        {31, D<&IAudioController::IsSpeakerAutoMuteEnabled>, "IsSpeakerAutoMuteEnabled"},
         {32, nullptr, "GetActiveOutputTarget"},
         {33, nullptr, "GetTargetDeviceInfo"},
-        {34, C<&IAudioController::AcquireTargetNotification>, "AcquireTargetNotification"},
+        {34, D<&IAudioController::AcquireTargetNotification>, "AcquireTargetNotification"},
         {35, nullptr, "SetHearingProtectionSafeguardTimerRemainingTimeForDebug"},
         {36, nullptr, "GetHearingProtectionSafeguardTimerRemainingTimeForDebug"},
         {37, nullptr, "SetHearingProtectionSafeguardEnabled"},
@@ -150,6 +150,11 @@ Result IAudioController::GetHeadphoneOutputLevelMode(
     R_SUCCEED();
 }
 
+Result IAudioController::NotifyHeadphoneVolumeWarningDisplayedEvent() {
+    LOG_WARNING(Service_Audio, "(STUBBED) called");
+    R_SUCCEED();
+}
+
 Result IAudioController::SetSpeakerAutoMuteEnabled(bool is_speaker_auto_mute_enabled) {
     LOG_INFO(Audio, "called, is_speaker_auto_mute_enabled={}", is_speaker_auto_mute_enabled);
 

src/core/hle/service/audio/audio_controller.h

@@ -45,6 +45,7 @@ private:
                                 Set::AudioOutputMode output_mode);
     Result SetHeadphoneOutputLevelMode(HeadphoneOutputLevelMode output_level_mode);
     Result GetHeadphoneOutputLevelMode(Out<HeadphoneOutputLevelMode> out_output_level_mode);
+    Result NotifyHeadphoneVolumeWarningDisplayedEvent();
     Result SetSpeakerAutoMuteEnabled(bool is_speaker_auto_mute_enabled);
     Result IsSpeakerAutoMuteEnabled(Out<bool> out_is_speaker_auto_mute_enabled);
     Result AcquireTargetNotification(OutCopyHandle<Kernel::KReadableEvent> out_notification_event);

src/core/hle/service/audio/audio_device.cpp

@@ -0,0 +1,163 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/audio_core.h"
+#include "common/string_util.h"
+#include "core/hle/service/audio/audio_device.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::Audio {
+using namespace AudioCore::Renderer;
+
+IAudioDevice::IAudioDevice(Core::System& system_, u64 applet_resource_user_id, u32 revision,
+                           u32 device_num)
+    : ServiceFramework{system_, "IAudioDevice"}, service_context{system_, "IAudioDevice"},
+      impl{std::make_unique<AudioDevice>(system_, applet_resource_user_id, revision)},
+      event{service_context.CreateEvent(fmt::format("IAudioDeviceEvent-{}", device_num))} {
+    static const FunctionInfo functions[] = {
+        {0, D<&IAudioDevice::ListAudioDeviceName>, "ListAudioDeviceName"},
+        {1, D<&IAudioDevice::SetAudioDeviceOutputVolume>, "SetAudioDeviceOutputVolume"},
+        {2, D<&IAudioDevice::GetAudioDeviceOutputVolume>, "GetAudioDeviceOutputVolume"},
+        {3, D<&IAudioDevice::GetActiveAudioDeviceName>, "GetActiveAudioDeviceName"},
+        {4, D<&IAudioDevice::QueryAudioDeviceSystemEvent>, "QueryAudioDeviceSystemEvent"},
+        {5, D<&IAudioDevice::GetActiveChannelCount>, "GetActiveChannelCount"},
+        {6, D<&IAudioDevice::ListAudioDeviceNameAuto>, "ListAudioDeviceNameAuto"},
+        {7, D<&IAudioDevice::SetAudioDeviceOutputVolumeAuto>, "SetAudioDeviceOutputVolumeAuto"},
+        {8, D<&IAudioDevice::GetAudioDeviceOutputVolumeAuto>, "GetAudioDeviceOutputVolumeAuto"},
+        {10, D<&IAudioDevice::GetActiveAudioDeviceNameAuto>, "GetActiveAudioDeviceNameAuto"},
+        {11, D<&IAudioDevice::QueryAudioDeviceInputEvent>, "QueryAudioDeviceInputEvent"},
+        {12, D<&IAudioDevice::QueryAudioDeviceOutputEvent>, "QueryAudioDeviceOutputEvent"},
+        {13, D<&IAudioDevice::GetActiveAudioDeviceName>, "GetActiveAudioOutputDeviceName"},
+        {14, D<&IAudioDevice::ListAudioOutputDeviceName>, "ListAudioOutputDeviceName"},
+    };
+    RegisterHandlers(functions);
+
+    event->Signal();
+}
+
+IAudioDevice::~IAudioDevice() {
+    service_context.CloseEvent(event);
+}
+
+Result IAudioDevice::ListAudioDeviceName(
+    OutArray<AudioDevice::AudioDeviceName, BufferAttr_HipcMapAlias> out_names, Out<s32> out_count) {
+    R_RETURN(this->ListAudioDeviceNameAuto(out_names, out_count));
+}
+
+Result IAudioDevice::SetAudioDeviceOutputVolume(
+    InArray<AudioDevice::AudioDeviceName, BufferAttr_HipcMapAlias> name, f32 volume) {
+    R_RETURN(this->SetAudioDeviceOutputVolumeAuto(name, volume));
+}
+
+Result IAudioDevice::GetAudioDeviceOutputVolume(
+    Out<f32> out_volume, InArray<AudioDevice::AudioDeviceName, BufferAttr_HipcMapAlias> name) {
+    R_RETURN(this->GetAudioDeviceOutputVolumeAuto(out_volume, name));
+}
+
+Result IAudioDevice::GetActiveAudioDeviceName(
+    OutArray<AudioDevice::AudioDeviceName, BufferAttr_HipcMapAlias> out_name) {
+    R_RETURN(this->GetActiveAudioDeviceNameAuto(out_name));
+}
+
+Result IAudioDevice::ListAudioDeviceNameAuto(
+    OutArray<AudioDevice::AudioDeviceName, BufferAttr_HipcAutoSelect> out_names,
+    Out<s32> out_count) {
+    *out_count = impl->ListAudioDeviceName(out_names);
+
+    std::string out{};
+    for (s32 i = 0; i < *out_count; i++) {
+        std::string a{};
+        u32 j = 0;
+        while (out_names[i].name[j] != '\0') {
+            a += out_names[i].name[j];
+            j++;
+        }
+        out += "\n\t" + a;
+    }
+
+    LOG_DEBUG(Service_Audio, "called.\nNames={}", out);
+    R_SUCCEED();
+}
+
+Result IAudioDevice::SetAudioDeviceOutputVolumeAuto(
+    InArray<AudioDevice::AudioDeviceName, BufferAttr_HipcAutoSelect> name, f32 volume) {
+    R_UNLESS(!name.empty(), Audio::ResultInsufficientBuffer);
+
+    const std::string device_name = Common::StringFromBuffer(name[0].name);
+    LOG_DEBUG(Service_Audio, "called. name={}, volume={}", device_name, volume);
+
+    if (device_name == "AudioTvOutput") {
+        impl->SetDeviceVolumes(volume);
+    }
+
+    R_SUCCEED();
+}
+
+Result IAudioDevice::GetAudioDeviceOutputVolumeAuto(
+    Out<f32> out_volume, InArray<AudioDevice::AudioDeviceName, BufferAttr_HipcAutoSelect> name) {
+    R_UNLESS(!name.empty(), Audio::ResultInsufficientBuffer);
+
+    const std::string device_name = Common::StringFromBuffer(name[0].name);
+    LOG_DEBUG(Service_Audio, "called. Name={}", device_name);
+
+    *out_volume = 1.0f;
+    if (device_name == "AudioTvOutput") {
+        *out_volume = impl->GetDeviceVolume(device_name);
+    }
+
+    R_SUCCEED();
+}
+
+Result IAudioDevice::GetActiveAudioDeviceNameAuto(
+    OutArray<AudioDevice::AudioDeviceName, BufferAttr_HipcAutoSelect> out_name) {
+    R_UNLESS(!out_name.empty(), Audio::ResultInsufficientBuffer);
+    out_name[0] = AudioDevice::AudioDeviceName("AudioTvOutput");
+    LOG_DEBUG(Service_Audio, "(STUBBED) called");
+    R_SUCCEED();
+}
+
+Result IAudioDevice::QueryAudioDeviceSystemEvent(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_Audio, "(STUBBED) called");
+    event->Signal();
+    *out_event = &event->GetReadableEvent();
+    R_SUCCEED();
+}
+
+Result IAudioDevice::QueryAudioDeviceInputEvent(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_Audio, "(STUBBED) called");
+    *out_event = &event->GetReadableEvent();
+    R_SUCCEED();
+}
+
+Result IAudioDevice::QueryAudioDeviceOutputEvent(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_Audio, "called");
+    *out_event = &event->GetReadableEvent();
+    R_SUCCEED();
+}
+
+Result IAudioDevice::GetActiveChannelCount(Out<u32> out_active_channel_count) {
+    *out_active_channel_count = system.AudioCore().GetOutputSink().GetSystemChannels();
+    LOG_DEBUG(Service_Audio, "(STUBBED) called. Channels={}", *out_active_channel_count);
+    R_SUCCEED();
+}
+
+Result IAudioDevice::ListAudioOutputDeviceName(
+    OutArray<AudioDevice::AudioDeviceName, BufferAttr_HipcMapAlias> out_names, Out<s32> out_count) {
+    *out_count = impl->ListAudioOutputDeviceName(out_names);
+
+    std::string out{};
+    for (s32 i = 0; i < *out_count; i++) {
+        std::string a{};
+        u32 j = 0;
+        while (out_names[i].name[j] != '\0') {
+            a += out_names[i].name[j];
+            j++;
+        }
+        out += "\n\t" + a;
+    }
+
+    LOG_DEBUG(Service_Audio, "called.\nNames={}", out);
+    R_SUCCEED();
+}
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_device.h

@@ -0,0 +1,58 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "audio_core/renderer/audio_device.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Kernel {
+class KReadableEvent;
+}
+
+namespace Service::Audio {
+
+using AudioCore::Renderer::AudioDevice;
+
+class IAudioDevice final : public ServiceFramework<IAudioDevice> {
+
+public:
+    explicit IAudioDevice(Core::System& system_, u64 applet_resource_user_id, u32 revision,
+                          u32 device_num);
+    ~IAudioDevice() override;
+
+private:
+    Result ListAudioDeviceName(
+        OutArray<AudioDevice::AudioDeviceName, BufferAttr_HipcMapAlias> out_names,
+        Out<s32> out_count);
+    Result SetAudioDeviceOutputVolume(
+        InArray<AudioDevice::AudioDeviceName, BufferAttr_HipcMapAlias> name, f32 volume);
+    Result GetAudioDeviceOutputVolume(
+        Out<f32> out_volume, InArray<AudioDevice::AudioDeviceName, BufferAttr_HipcMapAlias> name);
+    Result GetActiveAudioDeviceName(
+        OutArray<AudioDevice::AudioDeviceName, BufferAttr_HipcMapAlias> out_name);
+    Result ListAudioDeviceNameAuto(
+        OutArray<AudioDevice::AudioDeviceName, BufferAttr_HipcAutoSelect> out_names,
+        Out<s32> out_count);
+    Result SetAudioDeviceOutputVolumeAuto(
+        InArray<AudioDevice::AudioDeviceName, BufferAttr_HipcAutoSelect> name, f32 volume);
+    Result GetAudioDeviceOutputVolumeAuto(
+        Out<f32> out_volume, InArray<AudioDevice::AudioDeviceName, BufferAttr_HipcAutoSelect> name);
+    Result GetActiveAudioDeviceNameAuto(
+        OutArray<AudioDevice::AudioDeviceName, BufferAttr_HipcAutoSelect> out_name);
+    Result QueryAudioDeviceSystemEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result QueryAudioDeviceInputEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result QueryAudioDeviceOutputEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result GetActiveChannelCount(Out<u32> out_active_channel_count);
+    Result ListAudioOutputDeviceName(
+        OutArray<AudioDevice::AudioDeviceName, BufferAttr_HipcMapAlias> out_names,
+        Out<s32> out_count);
+
+    KernelHelpers::ServiceContext service_context;
+    std::unique_ptr<AudioCore::Renderer::AudioDevice> impl;
+    Kernel::KEvent* event;
+};
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_in.cpp

@@ -0,0 +1,146 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/audio/audio_in.h"
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/ipc_helpers.h"
+
+namespace Service::Audio {
+using namespace AudioCore::AudioIn;
+
+IAudioIn::IAudioIn(Core::System& system_, Manager& manager, size_t session_id,
+                   const std::string& device_name, const AudioInParameter& in_params,
+                   Kernel::KProcess* handle, u64 applet_resource_user_id)
+    : ServiceFramework{system_, "IAudioIn"}, process{handle}, service_context{system_, "IAudioIn"},
+      event{service_context.CreateEvent("AudioInEvent")}, impl{std::make_shared<In>(system_,
+                                                                                    manager, event,
+                                                                                    session_id)} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IAudioIn::GetAudioInState>, "GetAudioInState"},
+        {1, D<&IAudioIn::Start>, "Start"},
+        {2, D<&IAudioIn::Stop>, "Stop"},
+        {3, D<&IAudioIn::AppendAudioInBuffer>, "AppendAudioInBuffer"},
+        {4, D<&IAudioIn::RegisterBufferEvent>, "RegisterBufferEvent"},
+        {5, D<&IAudioIn::GetReleasedAudioInBuffers>, "GetReleasedAudioInBuffers"},
+        {6, D<&IAudioIn::ContainsAudioInBuffer>, "ContainsAudioInBuffer"},
+        {7, D<&IAudioIn::AppendAudioInBuffer>, "AppendUacInBuffer"},
+        {8, D<&IAudioIn::AppendAudioInBufferAuto>, "AppendAudioInBufferAuto"},
+        {9, D<&IAudioIn::GetReleasedAudioInBuffersAuto>, "GetReleasedAudioInBuffersAuto"},
+        {10, D<&IAudioIn::AppendAudioInBufferAuto>, "AppendUacInBufferAuto"},
+        {11, D<&IAudioIn::GetAudioInBufferCount>, "GetAudioInBufferCount"},
+        {12, D<&IAudioIn::SetDeviceGain>, "SetDeviceGain"},
+        {13, D<&IAudioIn::GetDeviceGain>, "GetDeviceGain"},
+        {14, D<&IAudioIn::FlushAudioInBuffers>, "FlushAudioInBuffers"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+
+    process->Open();
+
+    if (impl->GetSystem()
+            .Initialize(device_name, in_params, handle, applet_resource_user_id)
+            .IsError()) {
+        LOG_ERROR(Service_Audio, "Failed to initialize the AudioIn System!");
+    }
+}
+
+IAudioIn::~IAudioIn() {
+    impl->Free();
+    service_context.CloseEvent(event);
+    process->Close();
+}
+
+Result IAudioIn::GetAudioInState(Out<u32> out_state) {
+    *out_state = static_cast<u32>(impl->GetState());
+    LOG_DEBUG(Service_Audio, "called. state={}", *out_state);
+    R_SUCCEED();
+}
+
+Result IAudioIn::Start() {
+    LOG_DEBUG(Service_Audio, "called");
+    R_RETURN(impl->StartSystem());
+}
+
+Result IAudioIn::Stop() {
+    LOG_DEBUG(Service_Audio, "called");
+    R_RETURN(impl->StopSystem());
+}
+
+Result IAudioIn::AppendAudioInBuffer(InArray<AudioInBuffer, BufferAttr_HipcMapAlias> buffer,
+                                     u64 buffer_client_ptr) {
+    R_RETURN(this->AppendAudioInBufferAuto(buffer, buffer_client_ptr));
+}
+
+Result IAudioIn::AppendAudioInBufferAuto(InArray<AudioInBuffer, BufferAttr_HipcAutoSelect> buffer,
+                                         u64 buffer_client_ptr) {
+    if (buffer.empty()) {
+        LOG_ERROR(Service_Audio, "Input buffer is too small for an AudioInBuffer!");
+        R_THROW(Audio::ResultInsufficientBuffer);
+    }
+
+    [[maybe_unused]] const auto session_id{impl->GetSystem().GetSessionId()};
+    LOG_TRACE(Service_Audio, "called. Session {} Appending buffer {:08X}", session_id,
+              buffer_client_ptr);
+
+    R_RETURN(impl->AppendBuffer(buffer[0], buffer_client_ptr));
+}
+
+Result IAudioIn::RegisterBufferEvent(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_Audio, "called");
+    *out_event = &impl->GetBufferEvent();
+    R_SUCCEED();
+}
+
+Result IAudioIn::GetReleasedAudioInBuffers(OutArray<u64, BufferAttr_HipcMapAlias> out_audio_buffer,
+                                           Out<u32> out_count) {
+    R_RETURN(this->GetReleasedAudioInBuffersAuto(out_audio_buffer, out_count));
+}
+
+Result IAudioIn::GetReleasedAudioInBuffersAuto(
+    OutArray<u64, BufferAttr_HipcAutoSelect> out_audio_buffer, Out<u32> out_count) {
+
+    if (!out_audio_buffer.empty()) {
+        out_audio_buffer[0] = 0;
+    }
+    *out_count = impl->GetReleasedBuffers(out_audio_buffer);
+
+    LOG_TRACE(Service_Audio, "called. Session {} released {} buffers",
+              impl->GetSystem().GetSessionId(), *out_count);
+    R_SUCCEED();
+}
+
+Result IAudioIn::ContainsAudioInBuffer(Out<bool> out_contains_buffer, u64 buffer_client_ptr) {
+    *out_contains_buffer = impl->ContainsAudioBuffer(buffer_client_ptr);
+
+    LOG_DEBUG(Service_Audio, "called. Is buffer {:08X} registered? {}", buffer_client_ptr,
+              *out_contains_buffer);
+    R_SUCCEED();
+}
+
+Result IAudioIn::GetAudioInBufferCount(Out<u32> out_buffer_count) {
+    *out_buffer_count = impl->GetBufferCount();
+    LOG_DEBUG(Service_Audio, "called. Buffer count={}", *out_buffer_count);
+    R_SUCCEED();
+}
+
+Result IAudioIn::SetDeviceGain(f32 device_gain) {
+    impl->SetVolume(device_gain);
+    LOG_DEBUG(Service_Audio, "called. Gain {}", device_gain);
+    R_SUCCEED();
+}
+
+Result IAudioIn::GetDeviceGain(Out<f32> out_device_gain) {
+    *out_device_gain = impl->GetVolume();
+    LOG_DEBUG(Service_Audio, "called. Gain {}", *out_device_gain);
+    R_SUCCEED();
+}
+
+Result IAudioIn::FlushAudioInBuffers(Out<bool> out_flushed) {
+    *out_flushed = impl->FlushAudioInBuffers();
+    LOG_DEBUG(Service_Audio, "called. Were any buffers flushed? {}", *out_flushed);
+    R_SUCCEED();
+}
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_in.h

@@ -0,0 +1,53 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "audio_core/in/audio_in.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Service::Audio {
+
+class IAudioIn final : public ServiceFramework<IAudioIn> {
+public:
+    explicit IAudioIn(Core::System& system_, AudioCore::AudioIn::Manager& manager,
+                      size_t session_id, const std::string& device_name,
+                      const AudioCore::AudioIn::AudioInParameter& in_params,
+                      Kernel::KProcess* handle, u64 applet_resource_user_id);
+    ~IAudioIn() override;
+
+    std::shared_ptr<AudioCore::AudioIn::In> GetImpl() {
+        return impl;
+    }
+
+    Result GetAudioInState(Out<u32> out_state);
+    Result Start();
+    Result Stop();
+    Result AppendAudioInBuffer(
+        InArray<AudioCore::AudioIn::AudioInBuffer, BufferAttr_HipcMapAlias> buffer,
+        u64 buffer_client_ptr);
+    Result AppendAudioInBufferAuto(
+        InArray<AudioCore::AudioIn::AudioInBuffer, BufferAttr_HipcAutoSelect> buffer,
+        u64 buffer_client_ptr);
+    Result RegisterBufferEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result GetReleasedAudioInBuffers(OutArray<u64, BufferAttr_HipcMapAlias> out_audio_buffer,
+                                     Out<u32> out_count);
+    Result GetReleasedAudioInBuffersAuto(OutArray<u64, BufferAttr_HipcAutoSelect> out_audio_buffer,
+                                         Out<u32> out_count);
+    Result ContainsAudioInBuffer(Out<bool> out_contains_buffer, u64 buffer_client_ptr);
+    Result GetAudioInBufferCount(Out<u32> out_buffer_count);
+    Result SetDeviceGain(f32 device_gain);
+    Result GetDeviceGain(Out<f32> out_device_gain);
+    Result FlushAudioInBuffers(Out<bool> out_flushed);
+
+private:
+    Kernel::KProcess* process;
+    KernelHelpers::ServiceContext service_context;
+    Kernel::KEvent* event;
+    std::shared_ptr<AudioCore::AudioIn::In> impl;
+    Common::ScratchBuffer<u64> released_buffer;
+};
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_in_manager.cpp

@@ -0,0 +1,125 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/string_util.h"
+#include "core/hle/service/audio/audio_in.h"
+#include "core/hle/service/audio/audio_in_manager.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::Audio {
+using namespace AudioCore::AudioIn;
+
+IAudioInManager::IAudioInManager(Core::System& system_)
+    : ServiceFramework{system_, "audin:u"}, impl{std::make_unique<AudioCore::AudioIn::Manager>(
+                                                system_)} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IAudioInManager::ListAudioIns>, "ListAudioIns"},
+        {1, D<&IAudioInManager::OpenAudioIn>, "OpenAudioIn"},
+        {2, D<&IAudioInManager::ListAudioIns>, "ListAudioInsAuto"},
+        {3, D<&IAudioInManager::OpenAudioIn>, "OpenAudioInAuto"},
+        {4, D<&IAudioInManager::ListAudioInsAutoFiltered>, "ListAudioInsAutoFiltered"},
+        {5, D<&IAudioInManager::OpenAudioInProtocolSpecified>, "OpenAudioInProtocolSpecified"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IAudioInManager::~IAudioInManager() = default;
+
+Result IAudioInManager::ListAudioIns(
+    OutArray<AudioDeviceName, BufferAttr_HipcMapAlias> out_audio_ins, Out<u32> out_count) {
+    LOG_DEBUG(Service_Audio, "called");
+    R_RETURN(this->ListAudioInsAutoFiltered(out_audio_ins, out_count));
+}
+
+Result IAudioInManager::OpenAudioIn(Out<AudioInParameterInternal> out_parameter_internal,
+                                    Out<SharedPointer<IAudioIn>> out_audio_in,
+                                    OutArray<AudioDeviceName, BufferAttr_HipcMapAlias> out_name,
+                                    InArray<AudioDeviceName, BufferAttr_HipcMapAlias> name,
+                                    AudioInParameter parameter,
+                                    InCopyHandle<Kernel::KProcess> process_handle,
+                                    ClientAppletResourceUserId aruid) {
+    LOG_DEBUG(Service_Audio, "called");
+    R_RETURN(this->OpenAudioInProtocolSpecified(out_parameter_internal, out_audio_in, out_name,
+                                                name, {}, parameter, process_handle, aruid));
+}
+
+Result IAudioInManager::ListAudioInsAuto(
+    OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_audio_ins, Out<u32> out_count) {
+    LOG_DEBUG(Service_Audio, "called");
+    R_RETURN(this->ListAudioInsAutoFiltered(out_audio_ins, out_count));
+}
+
+Result IAudioInManager::OpenAudioInAuto(
+    Out<AudioInParameterInternal> out_parameter_internal, Out<SharedPointer<IAudioIn>> out_audio_in,
+    OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_name,
+    InArray<AudioDeviceName, BufferAttr_HipcAutoSelect> name, AudioInParameter parameter,
+    InCopyHandle<Kernel::KProcess> process_handle, ClientAppletResourceUserId aruid) {
+    LOG_DEBUG(Service_Audio, "called");
+    R_RETURN(this->OpenAudioInProtocolSpecified(out_parameter_internal, out_audio_in, out_name,
+                                                name, {}, parameter, process_handle, aruid));
+}
+
+Result IAudioInManager::ListAudioInsAutoFiltered(
+    OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_audio_ins, Out<u32> out_count) {
+    LOG_DEBUG(Service_Audio, "called");
+    *out_count = impl->GetDeviceNames(out_audio_ins, true);
+    R_SUCCEED();
+}
+
+Result IAudioInManager::OpenAudioInProtocolSpecified(
+    Out<AudioInParameterInternal> out_parameter_internal, Out<SharedPointer<IAudioIn>> out_audio_in,
+    OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_name,
+    InArray<AudioDeviceName, BufferAttr_HipcAutoSelect> name, Protocol protocol,
+    AudioInParameter parameter, InCopyHandle<Kernel::KProcess> process_handle,
+    ClientAppletResourceUserId aruid) {
+    LOG_DEBUG(Service_Audio, "called");
+
+    if (!process_handle) {
+        LOG_ERROR(Service_Audio, "Failed to get process handle");
+        R_THROW(ResultUnknown);
+    }
+    if (name.empty() || out_name.empty()) {
+        LOG_ERROR(Service_Audio, "Invalid buffers");
+        R_THROW(ResultUnknown);
+    }
+
+    std::scoped_lock l{impl->mutex};
+
+    size_t new_session_id{};
+
+    R_TRY(impl->LinkToManager());
+    R_TRY(impl->AcquireSessionId(new_session_id));
+
+    LOG_DEBUG(Service_Audio, "Opening new AudioIn, session_id={}, free sessions={}", new_session_id,
+              impl->num_free_sessions);
+
+    const auto device_name = Common::StringFromBuffer(name[0].name);
+    *out_audio_in = std::make_shared<IAudioIn>(system, *impl, new_session_id, device_name,
+                                               parameter, process_handle.Get(), aruid.pid);
+    impl->sessions[new_session_id] = (*out_audio_in)->GetImpl();
+    impl->applet_resource_user_ids[new_session_id] = aruid.pid;
+
+    auto& out_system = impl->sessions[new_session_id]->GetSystem();
+    *out_parameter_internal =
+        AudioInParameterInternal{.sample_rate = out_system.GetSampleRate(),
+                                 .channel_count = out_system.GetChannelCount(),
+                                 .sample_format = static_cast<u32>(out_system.GetSampleFormat()),
+                                 .state = static_cast<u32>(out_system.GetState())};
+
+    out_name[0] = AudioDeviceName(out_system.GetName());
+
+    if (protocol == Protocol{}) {
+        if (out_system.IsUac()) {
+            out_name[0] = AudioDeviceName("UacIn");
+        } else {
+            out_name[0] = AudioDeviceName("DeviceIn");
+        }
+    }
+
+    R_SUCCEED();
+}
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_in_manager.h

@@ -0,0 +1,57 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "audio_core/audio_in_manager.h"
+#include "audio_core/in/audio_in_system.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::Audio {
+
+using AudioDeviceName = AudioCore::Renderer::AudioDevice::AudioDeviceName;
+using Protocol = std::array<u32, 2>;
+
+class IAudioIn;
+
+class IAudioInManager final : public ServiceFramework<IAudioInManager> {
+public:
+    explicit IAudioInManager(Core::System& system_);
+    ~IAudioInManager() override;
+
+private:
+    Result ListAudioIns(OutArray<AudioDeviceName, BufferAttr_HipcMapAlias> out_audio_ins,
+                        Out<u32> out_count);
+    Result OpenAudioIn(Out<AudioCore::AudioIn::AudioInParameterInternal> out_parameter_internal,
+                       Out<SharedPointer<IAudioIn>> out_audio_in,
+                       OutArray<AudioDeviceName, BufferAttr_HipcMapAlias> out_name,
+                       InArray<AudioDeviceName, BufferAttr_HipcMapAlias> name,
+                       AudioCore::AudioIn::AudioInParameter parameter,
+                       InCopyHandle<Kernel::KProcess> process_handle,
+                       ClientAppletResourceUserId aruid);
+
+    Result ListAudioInsAuto(OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_audio_ins,
+                            Out<u32> out_count);
+    Result OpenAudioInAuto(Out<AudioCore::AudioIn::AudioInParameterInternal> out_parameter_internal,
+                           Out<SharedPointer<IAudioIn>> out_audio_in,
+                           OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_name,
+                           InArray<AudioDeviceName, BufferAttr_HipcAutoSelect> name,
+                           AudioCore::AudioIn::AudioInParameter parameter,
+                           InCopyHandle<Kernel::KProcess> process_handle,
+                           ClientAppletResourceUserId aruid);
+
+    Result ListAudioInsAutoFiltered(
+        OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_audio_ins, Out<u32> out_count);
+    Result OpenAudioInProtocolSpecified(
+        Out<AudioCore::AudioIn::AudioInParameterInternal> out_parameter_internal,
+        Out<SharedPointer<IAudioIn>> out_audio_in,
+        OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_name,
+        InArray<AudioDeviceName, BufferAttr_HipcAutoSelect> name, Protocol protocol,
+        AudioCore::AudioIn::AudioInParameter parameter,
+        InCopyHandle<Kernel::KProcess> process_handle, ClientAppletResourceUserId aruid);
+
+    std::unique_ptr<AudioCore::AudioIn::Manager> impl;
+};
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_out.cpp

@@ -0,0 +1,146 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/out/audio_out.h"
+#include "audio_core/out/audio_out_system.h"
+#include "core/hle/kernel/k_process.h"
+#include "core/hle/service/audio/audio_out.h"
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Service::Audio {
+using namespace AudioCore::AudioOut;
+
+IAudioOut::IAudioOut(Core::System& system_, Manager& manager, size_t session_id,
+                     const std::string& device_name, const AudioOutParameter& in_params,
+                     Kernel::KProcess* handle, u64 applet_resource_user_id)
+    : ServiceFramework{system_, "IAudioOut"}, service_context{system_, "IAudioOut"},
+      event{service_context.CreateEvent("AudioOutEvent")}, process{handle},
+      impl{std::make_shared<AudioCore::AudioOut::Out>(system_, manager, event, session_id)} {
+
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IAudioOut::GetAudioOutState>, "GetAudioOutState"},
+        {1, D<&IAudioOut::Start>, "Start"},
+        {2, D<&IAudioOut::Stop>, "Stop"},
+        {3, D<&IAudioOut::AppendAudioOutBuffer>, "AppendAudioOutBuffer"},
+        {4, D<&IAudioOut::RegisterBufferEvent>, "RegisterBufferEvent"},
+        {5, D<&IAudioOut::GetReleasedAudioOutBuffers>, "GetReleasedAudioOutBuffers"},
+        {6, D<&IAudioOut::ContainsAudioOutBuffer>, "ContainsAudioOutBuffer"},
+        {7, D<&IAudioOut::AppendAudioOutBufferAuto>, "AppendAudioOutBufferAuto"},
+        {8, D<&IAudioOut::GetReleasedAudioOutBuffersAuto>, "GetReleasedAudioOutBuffersAuto"},
+        {9, D<&IAudioOut::GetAudioOutBufferCount>, "GetAudioOutBufferCount"},
+        {10, D<&IAudioOut::GetAudioOutPlayedSampleCount>, "GetAudioOutPlayedSampleCount"},
+        {11, D<&IAudioOut::FlushAudioOutBuffers>, "FlushAudioOutBuffers"},
+        {12, D<&IAudioOut::SetAudioOutVolume>, "SetAudioOutVolume"},
+        {13, D<&IAudioOut::GetAudioOutVolume>, "GetAudioOutVolume"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+
+    process->Open();
+}
+
+IAudioOut::~IAudioOut() {
+    impl->Free();
+    service_context.CloseEvent(event);
+    process->Close();
+}
+
+Result IAudioOut::GetAudioOutState(Out<u32> out_state) {
+    *out_state = static_cast<u32>(impl->GetState());
+    LOG_DEBUG(Service_Audio, "called. state={}", *out_state);
+    R_SUCCEED();
+}
+
+Result IAudioOut::Start() {
+    LOG_DEBUG(Service_Audio, "called");
+    R_RETURN(impl->StartSystem());
+}
+
+Result IAudioOut::Stop() {
+    LOG_DEBUG(Service_Audio, "called");
+    R_RETURN(impl->StopSystem());
+}
+
+Result IAudioOut::AppendAudioOutBuffer(
+    InArray<AudioOutBuffer, BufferAttr_HipcMapAlias> audio_out_buffer, u64 buffer_client_ptr) {
+    R_RETURN(this->AppendAudioOutBufferAuto(audio_out_buffer, buffer_client_ptr));
+}
+
+Result IAudioOut::AppendAudioOutBufferAuto(
+    InArray<AudioOutBuffer, BufferAttr_HipcAutoSelect> audio_out_buffer, u64 buffer_client_ptr) {
+    if (audio_out_buffer.empty()) {
+        LOG_ERROR(Service_Audio, "Input buffer is too small for an AudioOutBuffer!");
+        R_THROW(Audio::ResultInsufficientBuffer);
+    }
+
+    LOG_TRACE(Service_Audio, "called. Session {} Appending buffer {:08X}",
+              impl->GetSystem().GetSessionId(), buffer_client_ptr);
+    R_RETURN(impl->AppendBuffer(audio_out_buffer[0], buffer_client_ptr));
+}
+
+Result IAudioOut::RegisterBufferEvent(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_Audio, "called");
+    *out_event = &impl->GetBufferEvent();
+    R_SUCCEED();
+}
+
+Result IAudioOut::GetReleasedAudioOutBuffers(
+    OutArray<u64, BufferAttr_HipcMapAlias> out_audio_buffer, Out<u32> out_count) {
+    R_RETURN(this->GetReleasedAudioOutBuffersAuto(out_audio_buffer, out_count));
+}
+
+Result IAudioOut::GetReleasedAudioOutBuffersAuto(
+    OutArray<u64, BufferAttr_HipcAutoSelect> out_audio_buffer, Out<u32> out_count) {
+
+    if (!out_audio_buffer.empty()) {
+        out_audio_buffer[0] = 0;
+    }
+    *out_count = impl->GetReleasedBuffers(out_audio_buffer);
+
+    LOG_TRACE(Service_Audio, "called. Session {} released {} buffers",
+              impl->GetSystem().GetSessionId(), *out_count);
+    R_SUCCEED();
+}
+
+Result IAudioOut::ContainsAudioOutBuffer(Out<bool> out_contains_buffer, u64 buffer_client_ptr) {
+    *out_contains_buffer = impl->ContainsAudioBuffer(buffer_client_ptr);
+
+    LOG_DEBUG(Service_Audio, "called. Is buffer {:08X} registered? {}", buffer_client_ptr,
+              *out_contains_buffer);
+    R_SUCCEED();
+}
+
+Result IAudioOut::GetAudioOutBufferCount(Out<u32> out_buffer_count) {
+    *out_buffer_count = impl->GetBufferCount();
+    LOG_DEBUG(Service_Audio, "called. Buffer count={}", *out_buffer_count);
+    R_SUCCEED();
+}
+
+Result IAudioOut::GetAudioOutPlayedSampleCount(Out<u64> out_played_sample_count) {
+    *out_played_sample_count = impl->GetPlayedSampleCount();
+    LOG_DEBUG(Service_Audio, "called. Played samples={}", *out_played_sample_count);
+    R_SUCCEED();
+}
+
+Result IAudioOut::FlushAudioOutBuffers(Out<bool> out_flushed) {
+    *out_flushed = impl->FlushAudioOutBuffers();
+    LOG_DEBUG(Service_Audio, "called. Were any buffers flushed? {}", *out_flushed);
+    R_SUCCEED();
+}
+
+Result IAudioOut::SetAudioOutVolume(f32 volume) {
+    LOG_DEBUG(Service_Audio, "called. Volume={}", volume);
+    impl->SetVolume(volume);
+    R_SUCCEED();
+}
+
+Result IAudioOut::GetAudioOutVolume(Out<f32> out_volume) {
+    *out_volume = impl->GetVolume();
+    LOG_DEBUG(Service_Audio, "called. Volume={}", *out_volume);
+    R_SUCCEED();
+}
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_out.h

@@ -0,0 +1,58 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "audio_core/audio_out_manager.h"
+#include "audio_core/out/audio_out_system.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Kernel {
+class KReadableEvent;
+}
+
+namespace Service::Audio {
+
+class IAudioOut : public ServiceFramework<IAudioOut> {
+public:
+    explicit IAudioOut(Core::System& system_, AudioCore::AudioOut::Manager& manager,
+                       size_t session_id, const std::string& device_name,
+                       const AudioCore::AudioOut::AudioOutParameter& in_params,
+                       Kernel::KProcess* handle, u64 applet_resource_user_id);
+    ~IAudioOut() override;
+
+    std::shared_ptr<AudioCore::AudioOut::Out> GetImpl() {
+        return impl;
+    }
+
+    Result GetAudioOutState(Out<u32> out_state);
+    Result Start();
+    Result Stop();
+    Result AppendAudioOutBuffer(
+        InArray<AudioCore::AudioOut::AudioOutBuffer, BufferAttr_HipcMapAlias> audio_out_buffer,
+        u64 buffer_client_ptr);
+    Result AppendAudioOutBufferAuto(
+        InArray<AudioCore::AudioOut::AudioOutBuffer, BufferAttr_HipcAutoSelect> audio_out_buffer,
+        u64 buffer_client_ptr);
+    Result RegisterBufferEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result GetReleasedAudioOutBuffers(OutArray<u64, BufferAttr_HipcMapAlias> out_audio_buffer,
+                                      Out<u32> out_count);
+    Result GetReleasedAudioOutBuffersAuto(OutArray<u64, BufferAttr_HipcAutoSelect> out_audio_buffer,
+                                          Out<u32> out_count);
+    Result ContainsAudioOutBuffer(Out<bool> out_contains_buffer, u64 buffer_client_ptr);
+    Result GetAudioOutBufferCount(Out<u32> out_buffer_count);
+    Result GetAudioOutPlayedSampleCount(Out<u64> out_played_sample_count);
+    Result FlushAudioOutBuffers(Out<bool> out_flushed);
+    Result SetAudioOutVolume(f32 volume);
+    Result GetAudioOutVolume(Out<f32> out_volume);
+
+private:
+    KernelHelpers::ServiceContext service_context;
+    Kernel::KEvent* event;
+    Kernel::KProcess* process;
+    std::shared_ptr<AudioCore::AudioOut::Out> impl;
+};
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_out_manager.cpp

@@ -0,0 +1,101 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/string_util.h"
+#include "core/hle/service/audio/audio_out.h"
+#include "core/hle/service/audio/audio_out_manager.h"
+#include "core/hle/service/cmif_serialization.h"
+#include "core/memory.h"
+
+namespace Service::Audio {
+using namespace AudioCore::AudioOut;
+
+IAudioOutManager::IAudioOutManager(Core::System& system_)
+    : ServiceFramework{system_, "audout:u"}, impl{std::make_unique<Manager>(system_)} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IAudioOutManager::ListAudioOuts>, "ListAudioOuts"},
+        {1, D<&IAudioOutManager::OpenAudioOut>, "OpenAudioOut"},
+        {2, D<&IAudioOutManager::ListAudioOutsAuto>, "ListAudioOutsAuto"},
+        {3, D<&IAudioOutManager::OpenAudioOutAuto>, "OpenAudioOutAuto"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IAudioOutManager::~IAudioOutManager() = default;
+
+Result IAudioOutManager::ListAudioOuts(
+    OutArray<AudioDeviceName, BufferAttr_HipcMapAlias> out_audio_outs, Out<u32> out_count) {
+    R_RETURN(this->ListAudioOutsAuto(out_audio_outs, out_count));
+}
+
+Result IAudioOutManager::OpenAudioOut(Out<AudioOutParameterInternal> out_parameter_internal,
+                                      Out<SharedPointer<IAudioOut>> out_audio_out,
+                                      OutArray<AudioDeviceName, BufferAttr_HipcMapAlias> out_name,
+                                      InArray<AudioDeviceName, BufferAttr_HipcMapAlias> name,
+                                      AudioOutParameter parameter,
+                                      InCopyHandle<Kernel::KProcess> process_handle,
+                                      ClientAppletResourceUserId aruid) {
+    R_RETURN(this->OpenAudioOutAuto(out_parameter_internal, out_audio_out, out_name, name,
+                                    parameter, process_handle, aruid));
+}
+
+Result IAudioOutManager::ListAudioOutsAuto(
+    OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_audio_outs, Out<u32> out_count) {
+    if (!out_audio_outs.empty()) {
+        out_audio_outs[0] = AudioDeviceName("DeviceOut");
+        *out_count = 1;
+        LOG_DEBUG(Service_Audio, "called. \nName=DeviceOut");
+    } else {
+        *out_count = 0;
+        LOG_DEBUG(Service_Audio, "called. Empty buffer passed in.");
+    }
+
+    R_SUCCEED();
+}
+
+Result IAudioOutManager::OpenAudioOutAuto(
+    Out<AudioOutParameterInternal> out_parameter_internal,
+    Out<SharedPointer<IAudioOut>> out_audio_out,
+    OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_name,
+    InArray<AudioDeviceName, BufferAttr_HipcAutoSelect> name, AudioOutParameter parameter,
+    InCopyHandle<Kernel::KProcess> process_handle, ClientAppletResourceUserId aruid) {
+    if (!process_handle) {
+        LOG_ERROR(Service_Audio, "Failed to get process handle");
+        R_THROW(ResultUnknown);
+    }
+    if (name.empty() || out_name.empty()) {
+        LOG_ERROR(Service_Audio, "Invalid buffers");
+        R_THROW(ResultUnknown);
+    }
+
+    size_t new_session_id{};
+    R_TRY(impl->LinkToManager());
+    R_TRY(impl->AcquireSessionId(new_session_id));
+
+    const auto device_name = Common::StringFromBuffer(name[0].name);
+    LOG_DEBUG(Service_Audio, "Opening new AudioOut, sessionid={}, free sessions={}", new_session_id,
+              impl->num_free_sessions);
+
+    auto audio_out = std::make_shared<IAudioOut>(system, *impl, new_session_id, device_name,
+                                                 parameter, process_handle.Get(), aruid.pid);
+    R_TRY(audio_out->GetImpl()->GetSystem().Initialize(device_name, parameter, process_handle.Get(),
+                                                       aruid.pid));
+
+    *out_audio_out = audio_out;
+    impl->sessions[new_session_id] = audio_out->GetImpl();
+    impl->applet_resource_user_ids[new_session_id] = aruid.pid;
+
+    auto& out_system = impl->sessions[new_session_id]->GetSystem();
+    *out_parameter_internal =
+        AudioOutParameterInternal{.sample_rate = out_system.GetSampleRate(),
+                                  .channel_count = out_system.GetChannelCount(),
+                                  .sample_format = static_cast<u32>(out_system.GetSampleFormat()),
+                                  .state = static_cast<u32>(out_system.GetState())};
+
+    R_SUCCEED();
+}
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_out_manager.h

@@ -0,0 +1,44 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "audio_core/audio_out_manager.h"
+#include "audio_core/out/audio_out.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::Audio {
+
+using AudioDeviceName = AudioCore::Renderer::AudioDevice::AudioDeviceName;
+class IAudioOut;
+
+class IAudioOutManager final : public ServiceFramework<IAudioOutManager> {
+public:
+    explicit IAudioOutManager(Core::System& system_);
+    ~IAudioOutManager() override;
+
+private:
+    Result ListAudioOuts(OutArray<AudioDeviceName, BufferAttr_HipcMapAlias> out_audio_outs,
+                         Out<u32> out_count);
+    Result OpenAudioOut(Out<AudioCore::AudioOut::AudioOutParameterInternal> out_parameter_internal,
+                        Out<SharedPointer<IAudioOut>> out_audio_out,
+                        OutArray<AudioDeviceName, BufferAttr_HipcMapAlias> out_name,
+                        InArray<AudioDeviceName, BufferAttr_HipcMapAlias> name,
+                        AudioCore::AudioOut::AudioOutParameter parameter,
+                        InCopyHandle<Kernel::KProcess> process_handle,
+                        ClientAppletResourceUserId aruid);
+    Result ListAudioOutsAuto(OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_audio_outs,
+                             Out<u32> out_count);
+    Result OpenAudioOutAuto(
+        Out<AudioCore::AudioOut::AudioOutParameterInternal> out_parameter_internal,
+        Out<SharedPointer<IAudioOut>> out_audio_out,
+        OutArray<AudioDeviceName, BufferAttr_HipcAutoSelect> out_name,
+        InArray<AudioDeviceName, BufferAttr_HipcAutoSelect> name,
+        AudioCore::AudioOut::AudioOutParameter parameter,
+        InCopyHandle<Kernel::KProcess> process_handle, ClientAppletResourceUserId aruid);
+
+    std::unique_ptr<AudioCore::AudioOut::Manager> impl;
+};
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_renderer.cpp

@@ -0,0 +1,139 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/audio/audio_renderer.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::Audio {
+using namespace AudioCore::Renderer;
+
+IAudioRenderer::IAudioRenderer(Core::System& system_, Manager& manager_,
+                               AudioCore::AudioRendererParameterInternal& params,
+                               Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size,
+                               Kernel::KProcess* process_handle_, u64 applet_resource_user_id,
+                               s32 session_id)
+    : ServiceFramework{system_, "IAudioRenderer"}, service_context{system_, "IAudioRenderer"},
+      rendered_event{service_context.CreateEvent("IAudioRendererEvent")}, manager{manager_},
+      impl{std::make_unique<Renderer>(system_, manager, rendered_event)}, process_handle{
+                                                                              process_handle_} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IAudioRenderer::GetSampleRate>, "GetSampleRate"},
+        {1, D<&IAudioRenderer::GetSampleCount>, "GetSampleCount"},
+        {2, D<&IAudioRenderer::GetMixBufferCount>, "GetMixBufferCount"},
+        {3, D<&IAudioRenderer::GetState>, "GetState"},
+        {4, D<&IAudioRenderer::RequestUpdate>, "RequestUpdate"},
+        {5, D<&IAudioRenderer::Start>, "Start"},
+        {6, D<&IAudioRenderer::Stop>, "Stop"},
+        {7, D<&IAudioRenderer::QuerySystemEvent>, "QuerySystemEvent"},
+        {8, D<&IAudioRenderer::SetRenderingTimeLimit>, "SetRenderingTimeLimit"},
+        {9, D<&IAudioRenderer::GetRenderingTimeLimit>, "GetRenderingTimeLimit"},
+        {10, D<&IAudioRenderer::RequestUpdateAuto>, "RequestUpdateAuto"},
+        {11, nullptr, "ExecuteAudioRendererRendering"},
+        {12, D<&IAudioRenderer::SetVoiceDropParameter>, "SetVoiceDropParameter"},
+        {13, D<&IAudioRenderer::GetVoiceDropParameter>, "GetVoiceDropParameter"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+
+    process_handle->Open();
+    impl->Initialize(params, transfer_memory, transfer_memory_size, process_handle,
+                     applet_resource_user_id, session_id);
+}
+
+IAudioRenderer::~IAudioRenderer() {
+    impl->Finalize();
+    service_context.CloseEvent(rendered_event);
+    process_handle->Close();
+}
+
+Result IAudioRenderer::GetSampleRate(Out<u32> out_sample_rate) {
+    *out_sample_rate = impl->GetSystem().GetSampleRate();
+    LOG_DEBUG(Service_Audio, "called. Sample rate {}", *out_sample_rate);
+    R_SUCCEED();
+}
+
+Result IAudioRenderer::GetSampleCount(Out<u32> out_sample_count) {
+    *out_sample_count = impl->GetSystem().GetSampleCount();
+    LOG_DEBUG(Service_Audio, "called. Sample count {}", *out_sample_count);
+    R_SUCCEED();
+}
+
+Result IAudioRenderer::GetState(Out<u32> out_state) {
+    *out_state = !impl->GetSystem().IsActive();
+    LOG_DEBUG(Service_Audio, "called, state {}", *out_state);
+    R_SUCCEED();
+}
+
+Result IAudioRenderer::GetMixBufferCount(Out<u32> out_mix_buffer_count) {
+    LOG_DEBUG(Service_Audio, "called");
+    *out_mix_buffer_count = impl->GetSystem().GetMixBufferCount();
+    R_SUCCEED();
+}
+
+Result IAudioRenderer::RequestUpdate(OutBuffer<BufferAttr_HipcMapAlias> out_buffer,
+                                     OutBuffer<BufferAttr_HipcMapAlias> out_performance_buffer,
+                                     InBuffer<BufferAttr_HipcMapAlias> input) {
+    R_RETURN(this->RequestUpdateAuto(out_buffer, out_performance_buffer, input));
+}
+
+Result IAudioRenderer::RequestUpdateAuto(
+    OutBuffer<BufferAttr_HipcAutoSelect> out_buffer,
+    OutBuffer<BufferAttr_HipcAutoSelect> out_performance_buffer,
+    InBuffer<BufferAttr_HipcAutoSelect> input) {
+    LOG_TRACE(Service_Audio, "called");
+
+    const auto result = impl->RequestUpdate(input, out_performance_buffer, out_buffer);
+    if (result.IsFailure()) {
+        LOG_ERROR(Service_Audio, "RequestUpdate failed error 0x{:02X}!", result.GetDescription());
+    }
+
+    R_RETURN(result);
+}
+
+Result IAudioRenderer::Start() {
+    LOG_DEBUG(Service_Audio, "called");
+    impl->Start();
+    R_SUCCEED();
+}
+
+Result IAudioRenderer::Stop() {
+    LOG_DEBUG(Service_Audio, "called");
+    impl->Stop();
+    R_SUCCEED();
+}
+
+Result IAudioRenderer::QuerySystemEvent(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_Audio, "called");
+    R_UNLESS(impl->GetSystem().GetExecutionMode() != AudioCore::ExecutionMode::Manual,
+             Audio::ResultNotSupported);
+    *out_event = &rendered_event->GetReadableEvent();
+    R_SUCCEED();
+}
+
+Result IAudioRenderer::SetRenderingTimeLimit(u32 rendering_time_limit) {
+    LOG_DEBUG(Service_Audio, "called");
+    impl->GetSystem().SetRenderingTimeLimit(rendering_time_limit);
+    ;
+    R_SUCCEED();
+}
+
+Result IAudioRenderer::GetRenderingTimeLimit(Out<u32> out_rendering_time_limit) {
+    LOG_DEBUG(Service_Audio, "called");
+    *out_rendering_time_limit = impl->GetSystem().GetRenderingTimeLimit();
+    R_SUCCEED();
+}
+
+Result IAudioRenderer::SetVoiceDropParameter(f32 voice_drop_parameter) {
+    LOG_DEBUG(Service_Audio, "called");
+    impl->GetSystem().SetVoiceDropParameter(voice_drop_parameter);
+    R_SUCCEED();
+}
+
+Result IAudioRenderer::GetVoiceDropParameter(Out<f32> out_voice_drop_parameter) {
+    LOG_DEBUG(Service_Audio, "called");
+    *out_voice_drop_parameter = impl->GetSystem().GetVoiceDropParameter();
+    R_SUCCEED();
+}
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_renderer.h

@@ -0,0 +1,54 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "audio_core/renderer/audio_renderer.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/service.h"
+
+namespace Kernel {
+class KReadableEvent;
+}
+
+namespace Service::Audio {
+
+class IAudioRenderer final : public ServiceFramework<IAudioRenderer> {
+public:
+    explicit IAudioRenderer(Core::System& system_, AudioCore::Renderer::Manager& manager_,
+                            AudioCore::AudioRendererParameterInternal& params,
+                            Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size,
+                            Kernel::KProcess* process_handle_, u64 applet_resource_user_id,
+                            s32 session_id);
+    ~IAudioRenderer() override;
+
+private:
+    Result GetSampleRate(Out<u32> out_sample_rate);
+    Result GetSampleCount(Out<u32> out_sample_count);
+    Result GetState(Out<u32> out_state);
+    Result GetMixBufferCount(Out<u32> out_mix_buffer_count);
+    Result RequestUpdate(OutBuffer<BufferAttr_HipcMapAlias> out_buffer,
+                         OutBuffer<BufferAttr_HipcMapAlias> out_performance_buffer,
+                         InBuffer<BufferAttr_HipcMapAlias> input);
+    Result RequestUpdateAuto(OutBuffer<BufferAttr_HipcAutoSelect> out_buffer,
+                             OutBuffer<BufferAttr_HipcAutoSelect> out_performance_buffer,
+                             InBuffer<BufferAttr_HipcAutoSelect> input);
+    Result Start();
+    Result Stop();
+    Result QuerySystemEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result SetRenderingTimeLimit(u32 rendering_time_limit);
+    Result GetRenderingTimeLimit(Out<u32> out_rendering_time_limit);
+    Result SetVoiceDropParameter(f32 voice_drop_parameter);
+    Result GetVoiceDropParameter(Out<f32> out_voice_drop_parameter);
+
+    KernelHelpers::ServiceContext service_context;
+    Kernel::KEvent* rendered_event;
+    AudioCore::Renderer::Manager& manager;
+    std::unique_ptr<AudioCore::Renderer::Renderer> impl;
+    Kernel::KProcess* process_handle;
+    Common::ScratchBuffer<u8> output_buffer;
+    Common::ScratchBuffer<u8> performance_buffer;
+};
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_renderer_manager.cpp

@@ -0,0 +1,104 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/audio_render_manager.h"
+#include "audio_core/common/feature_support.h"
+#include "core/hle/kernel/k_process.h"
+#include "core/hle/kernel/k_transfer_memory.h"
+#include "core/hle/service/audio/audio_device.h"
+#include "core/hle/service/audio/audio_renderer.h"
+#include "core/hle/service/audio/audio_renderer_manager.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::Audio {
+
+using namespace AudioCore::Renderer;
+
+IAudioRendererManager::IAudioRendererManager(Core::System& system_)
+    : ServiceFramework{system_, "audren:u"}, impl{std::make_unique<Manager>(system_)} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IAudioRendererManager::OpenAudioRenderer>, "OpenAudioRenderer"},
+        {1, D<&IAudioRendererManager::GetWorkBufferSize>, "GetWorkBufferSize"},
+        {2, D<&IAudioRendererManager::GetAudioDeviceService>, "GetAudioDeviceService"},
+        {3, nullptr, "OpenAudioRendererForManualExecution"},
+        {4, D<&IAudioRendererManager::GetAudioDeviceServiceWithRevisionInfo>, "GetAudioDeviceServiceWithRevisionInfo"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IAudioRendererManager::~IAudioRendererManager() = default;
+
+Result IAudioRendererManager::OpenAudioRenderer(
+    Out<SharedPointer<IAudioRenderer>> out_audio_renderer,
+    AudioCore::AudioRendererParameterInternal parameter,
+    InCopyHandle<Kernel::KTransferMemory> tmem_handle, u64 tmem_size,
+    InCopyHandle<Kernel::KProcess> process_handle, ClientAppletResourceUserId aruid) {
+    LOG_DEBUG(Service_Audio, "called");
+
+    if (impl->GetSessionCount() + 1 > AudioCore::MaxRendererSessions) {
+        LOG_ERROR(Service_Audio, "Too many AudioRenderer sessions open!");
+        R_THROW(Audio::ResultOutOfSessions);
+    }
+
+    const auto session_id{impl->GetSessionId()};
+    if (session_id == -1) {
+        LOG_ERROR(Service_Audio, "Tried to open a session that's already in use!");
+        R_THROW(Audio::ResultOutOfSessions);
+    }
+
+    LOG_DEBUG(Service_Audio, "Opened new AudioRenderer session {} sessions open {}", session_id,
+              impl->GetSessionCount());
+
+    *out_audio_renderer =
+        std::make_shared<IAudioRenderer>(system, *impl, parameter, tmem_handle.Get(), tmem_size,
+                                         process_handle.Get(), aruid.pid, session_id);
+    R_SUCCEED();
+}
+
+Result IAudioRendererManager::GetWorkBufferSize(Out<u64> out_size,
+                                                AudioCore::AudioRendererParameterInternal params) {
+    LOG_DEBUG(Service_Audio, "called");
+
+    R_TRY(impl->GetWorkBufferSize(params, *out_size))
+
+    std::string output_info{};
+    output_info += fmt::format("\tRevision {}", AudioCore::GetRevisionNum(params.revision));
+    output_info +=
+        fmt::format("\n\tSample Rate {}, Sample Count {}", params.sample_rate, params.sample_count);
+    output_info += fmt::format("\n\tExecution Mode {}, Voice Drop Enabled {}",
+                               static_cast<u32>(params.execution_mode), params.voice_drop_enabled);
+    output_info += fmt::format(
+        "\n\tSizes: Effects {:04X}, Mixes {:04X}, Sinks {:04X}, Submixes {:04X}, Splitter Infos "
+        "{:04X}, Splitter Destinations {:04X}, Voices {:04X}, Performance Frames {:04X} External "
+        "Context {:04X}",
+        params.effects, params.mixes, params.sinks, params.sub_mixes, params.splitter_infos,
+        params.splitter_destinations, params.voices, params.perf_frames,
+        params.external_context_size);
+
+    LOG_DEBUG(Service_Audio, "called.\nInput params:\n{}\nOutput params:\n\tWorkbuffer size {:08X}",
+              output_info, *out_size);
+    R_SUCCEED();
+}
+
+Result IAudioRendererManager::GetAudioDeviceService(
+    Out<SharedPointer<IAudioDevice>> out_audio_device, ClientAppletResourceUserId aruid) {
+    LOG_DEBUG(Service_Audio, "called, aruid={:#x}", aruid.pid);
+    *out_audio_device = std::make_shared<IAudioDevice>(
+        system, aruid.pid, Common::MakeMagic('R', 'E', 'V', '1'), num_audio_devices++);
+    R_SUCCEED();
+}
+
+Result IAudioRendererManager::GetAudioDeviceServiceWithRevisionInfo(
+    Out<SharedPointer<IAudioDevice>> out_audio_device, u32 revision,
+    ClientAppletResourceUserId aruid) {
+    LOG_DEBUG(Service_Audio, "called, revision={} aruid={:#x}", AudioCore::GetRevisionNum(revision),
+              aruid.pid);
+    *out_audio_device =
+        std::make_shared<IAudioDevice>(system, aruid.pid, revision, num_audio_devices++);
+    R_SUCCEED();
+}
+
+} // namespace Service::Audio

src/core/hle/service/audio/audio_renderer_manager.h

@@ -0,0 +1,37 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "audio_core/audio_render_manager.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::Audio {
+
+class IAudioDevice;
+class IAudioRenderer;
+
+class IAudioRendererManager final : public ServiceFramework<IAudioRendererManager> {
+public:
+    explicit IAudioRendererManager(Core::System& system_);
+    ~IAudioRendererManager() override;
+
+private:
+    Result OpenAudioRenderer(Out<SharedPointer<IAudioRenderer>> out_audio_renderer,
+                             AudioCore::AudioRendererParameterInternal parameter,
+                             InCopyHandle<Kernel::KTransferMemory> tmem_handle, u64 tmem_size,
+                             InCopyHandle<Kernel::KProcess> process_handle,
+                             ClientAppletResourceUserId aruid);
+    Result GetWorkBufferSize(Out<u64> out_size,
+                             AudioCore::AudioRendererParameterInternal parameter);
+    Result GetAudioDeviceService(Out<SharedPointer<IAudioDevice>> out_audio_device,
+                                 ClientAppletResourceUserId aruid);
+    Result GetAudioDeviceServiceWithRevisionInfo(Out<SharedPointer<IAudioDevice>> out_audio_device,
+                                                 u32 revision, ClientAppletResourceUserId aruid);
+
+    std::unique_ptr<AudioCore::Renderer::Manager> impl;
+    u32 num_audio_devices{0};
+};
+
+} // namespace Service::Audio

src/core/hle/service/audio/final_output_recorder_manager.cpp

@@ -0,0 +1,43 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/audio/final_output_recorder_manager.h"
+
+namespace Service::Audio {
+
+class IFinalOutputRecorder final : public ServiceFramework<IFinalOutputRecorder> {
+public:
+    explicit IFinalOutputRecorder(Core::System& system_)
+        : ServiceFramework{system_, "IFinalOutputRecorder"} {
+        // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "GetFinalOutputRecorderState"},
+            {1, nullptr, "Start"},
+            {2, nullptr, "Stop"},
+            {3, nullptr, "AppendFinalOutputRecorderBuffer"},
+            {4, nullptr, "RegisterBufferEvent"},
+            {5, nullptr, "GetReleasedFinalOutputRecorderBuffers"},
+            {6, nullptr, "ContainsFinalOutputRecorderBuffer"},
+            {7, nullptr, "GetFinalOutputRecorderBufferEndTime"},
+            {8, nullptr, "AppendFinalOutputRecorderBufferAuto"},
+            {9, nullptr, "GetReleasedFinalOutputRecorderBufferAuto"},
+            {10, nullptr, "FlushFinalOutputRecorderBuffers"},
+            {11, nullptr, "AttachWorkBuffer"},
+        };
+        // clang-format on
+
+        RegisterHandlers(functions);
+    }
+};
+
+IFinalOutputRecorderManager::IFinalOutputRecorderManager(Core::System& system_)
+    : ServiceFramework{system_, "audrec:u"} {
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "OpenFinalOutputRecorder"},
+    };
+    RegisterHandlers(functions);
+}
+
+IFinalOutputRecorderManager::~IFinalOutputRecorderManager() = default;
+
+} // namespace Service::Audio

src/core/hle/service/audio/final_output_recorder_manager.h

@@ -0,0 +1,20 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::Audio {
+
+class IFinalOutputRecorderManager final : public ServiceFramework<IFinalOutputRecorderManager> {
+public:
+    explicit IFinalOutputRecorderManager(Core::System& system_);
+    ~IFinalOutputRecorderManager() override;
+};
+
+} // namespace Service::Audio

src/core/hle/service/audio/final_output_recorder_manager_for_applet.cpp

@@ -0,0 +1,22 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/audio/final_output_recorder_manager_for_applet.h"
+
+namespace Service::Audio {
+
+IFinalOutputRecorderManagerForApplet::IFinalOutputRecorderManagerForApplet(Core::System& system_)
+    : ServiceFramework{system_, "audrec:a"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "RequestSuspend"},
+        {1, nullptr, "RequestResume"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IFinalOutputRecorderManagerForApplet::~IFinalOutputRecorderManagerForApplet() = default;
+
+} // namespace Service::Audio

src/core/hle/service/audio/final_output_recorder_manager_for_applet.h

@@ -0,0 +1,21 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::Audio {
+
+class IFinalOutputRecorderManagerForApplet final
+    : public ServiceFramework<IFinalOutputRecorderManagerForApplet> {
+public:
+    explicit IFinalOutputRecorderManagerForApplet(Core::System& system_);
+    ~IFinalOutputRecorderManagerForApplet() override;
+};
+
+} // namespace Service::Audio

src/core/hle/service/audio/hardware_opus_decoder.cpp

@@ -0,0 +1,145 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/audio/hardware_opus_decoder.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::Audio {
+
+using namespace AudioCore::OpusDecoder;
+
+IHardwareOpusDecoder::IHardwareOpusDecoder(Core::System& system_, HardwareOpus& hardware_opus)
+    : ServiceFramework{system_, "IHardwareOpusDecoder"},
+      impl{std::make_unique<AudioCore::OpusDecoder::OpusDecoder>(system_, hardware_opus)} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IHardwareOpusDecoder::DecodeInterleavedOld>, "DecodeInterleavedOld"},
+        {1, D<&IHardwareOpusDecoder::SetContext>, "SetContext"},
+        {2, D<&IHardwareOpusDecoder::DecodeInterleavedForMultiStreamOld>, "DecodeInterleavedForMultiStreamOld"},
+        {3, D<&IHardwareOpusDecoder::SetContextForMultiStream>, "SetContextForMultiStream"},
+        {4, D<&IHardwareOpusDecoder::DecodeInterleavedWithPerfOld>, "DecodeInterleavedWithPerfOld"},
+        {5, D<&IHardwareOpusDecoder::DecodeInterleavedForMultiStreamWithPerfOld>, "DecodeInterleavedForMultiStreamWithPerfOld"},
+        {6, D<&IHardwareOpusDecoder::DecodeInterleavedWithPerfAndResetOld>, "DecodeInterleavedWithPerfAndResetOld"},
+        {7, D<&IHardwareOpusDecoder::DecodeInterleavedForMultiStreamWithPerfAndResetOld>, "DecodeInterleavedForMultiStreamWithPerfAndResetOld"},
+        {8, D<&IHardwareOpusDecoder::DecodeInterleaved>, "DecodeInterleaved"},
+        {9, D<&IHardwareOpusDecoder::DecodeInterleavedForMultiStream>, "DecodeInterleavedForMultiStream"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IHardwareOpusDecoder::~IHardwareOpusDecoder() = default;
+
+Result IHardwareOpusDecoder::Initialize(const OpusParametersEx& params,
+                                        Kernel::KTransferMemory* transfer_memory,
+                                        u64 transfer_memory_size) {
+    return impl->Initialize(params, transfer_memory, transfer_memory_size);
+}
+
+Result IHardwareOpusDecoder::Initialize(const OpusMultiStreamParametersEx& params,
+                                        Kernel::KTransferMemory* transfer_memory,
+                                        u64 transfer_memory_size) {
+    return impl->Initialize(params, transfer_memory, transfer_memory_size);
+}
+
+Result IHardwareOpusDecoder::DecodeInterleavedOld(OutBuffer<BufferAttr_HipcMapAlias> out_pcm_data,
+                                                  Out<u32> out_data_size, Out<u32> out_sample_count,
+                                                  InBuffer<BufferAttr_HipcMapAlias> opus_data) {
+    R_TRY(impl->DecodeInterleaved(out_data_size, nullptr, out_sample_count, opus_data, out_pcm_data,
+                                  false));
+    LOG_DEBUG(Service_Audio, "bytes read {:#x} samples generated {}", *out_data_size,
+              *out_sample_count);
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoder::SetContext(InBuffer<BufferAttr_HipcMapAlias> decoder_context) {
+    LOG_DEBUG(Service_Audio, "called");
+    R_RETURN(impl->SetContext(decoder_context));
+}
+
+Result IHardwareOpusDecoder::DecodeInterleavedForMultiStreamOld(
+    OutBuffer<BufferAttr_HipcMapAlias> out_pcm_data, Out<u32> out_data_size,
+    Out<u32> out_sample_count, InBuffer<BufferAttr_HipcMapAlias> opus_data) {
+    R_TRY(impl->DecodeInterleavedForMultiStream(out_data_size, nullptr, out_sample_count, opus_data,
+                                                out_pcm_data, false));
+    LOG_DEBUG(Service_Audio, "bytes read {:#x} samples generated {}", *out_data_size,
+              *out_sample_count);
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoder::SetContextForMultiStream(
+    InBuffer<BufferAttr_HipcMapAlias> decoder_context) {
+    LOG_DEBUG(Service_Audio, "called");
+    R_RETURN(impl->SetContext(decoder_context));
+}
+
+Result IHardwareOpusDecoder::DecodeInterleavedWithPerfOld(
+    OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_pcm_data,
+    Out<u32> out_data_size, Out<u32> out_sample_count, Out<u64> out_time_taken,
+    InBuffer<BufferAttr_HipcMapAlias> opus_data) {
+    R_TRY(impl->DecodeInterleaved(out_data_size, out_time_taken, out_sample_count, opus_data,
+                                  out_pcm_data, false));
+    LOG_DEBUG(Service_Audio, "bytes read {:#x} samples generated {} time taken {}", *out_data_size,
+              *out_sample_count, *out_time_taken);
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoder::DecodeInterleavedForMultiStreamWithPerfOld(
+    OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_pcm_data,
+    Out<u32> out_data_size, Out<u32> out_sample_count, Out<u64> out_time_taken,
+    InBuffer<BufferAttr_HipcMapAlias> opus_data) {
+    R_TRY(impl->DecodeInterleavedForMultiStream(out_data_size, out_time_taken, out_sample_count,
+                                                opus_data, out_pcm_data, false));
+    LOG_DEBUG(Service_Audio, "bytes read {:#x} samples generated {} time taken {}", *out_data_size,
+              *out_sample_count, *out_time_taken);
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoder::DecodeInterleavedWithPerfAndResetOld(
+    OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_pcm_data,
+    Out<u32> out_data_size, Out<u32> out_sample_count, Out<u64> out_time_taken,
+    InBuffer<BufferAttr_HipcMapAlias> opus_data, bool reset) {
+    R_TRY(impl->DecodeInterleaved(out_data_size, out_time_taken, out_sample_count, opus_data,
+                                  out_pcm_data, reset));
+    LOG_DEBUG(Service_Audio, "reset {} bytes read {:#x} samples generated {} time taken {}", reset,
+              *out_data_size, *out_sample_count, *out_time_taken);
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoder::DecodeInterleavedForMultiStreamWithPerfAndResetOld(
+    OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_pcm_data,
+    Out<u32> out_data_size, Out<u32> out_sample_count, Out<u64> out_time_taken,
+    InBuffer<BufferAttr_HipcMapAlias> opus_data, bool reset) {
+    R_TRY(impl->DecodeInterleavedForMultiStream(out_data_size, out_time_taken, out_sample_count,
+                                                opus_data, out_pcm_data, reset));
+    LOG_DEBUG(Service_Audio, "reset {} bytes read {:#x} samples generated {} time taken {}", reset,
+              *out_data_size, *out_sample_count, *out_time_taken);
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoder::DecodeInterleaved(
+    OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_pcm_data,
+    Out<u32> out_data_size, Out<u32> out_sample_count, Out<u64> out_time_taken,
+    InBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> opus_data,
+    bool reset) {
+    R_TRY(impl->DecodeInterleaved(out_data_size, out_time_taken, out_sample_count, opus_data,
+                                  out_pcm_data, reset));
+    LOG_DEBUG(Service_Audio, "reset {} bytes read {:#x} samples generated {} time taken {}", reset,
+              *out_data_size, *out_sample_count, *out_time_taken);
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoder::DecodeInterleavedForMultiStream(
+    OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_pcm_data,
+    Out<u32> out_data_size, Out<u32> out_sample_count, Out<u64> out_time_taken,
+    InBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> opus_data,
+    bool reset) {
+    R_TRY(impl->DecodeInterleavedForMultiStream(out_data_size, out_time_taken, out_sample_count,
+                                                opus_data, out_pcm_data, reset));
+    LOG_DEBUG(Service_Audio, "reset {} bytes read {:#x} samples generated {} time taken {}", reset,
+              *out_data_size, *out_sample_count, *out_time_taken);
+    R_SUCCEED();
+}
+
+} // namespace Service::Audio

src/core/hle/service/audio/hardware_opus_decoder.h

@@ -0,0 +1,63 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "audio_core/opus/decoder.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::Audio {
+
+class IHardwareOpusDecoder final : public ServiceFramework<IHardwareOpusDecoder> {
+public:
+    explicit IHardwareOpusDecoder(Core::System& system_,
+                                  AudioCore::OpusDecoder::HardwareOpus& hardware_opus);
+    ~IHardwareOpusDecoder() override;
+
+    Result Initialize(const AudioCore::OpusDecoder::OpusParametersEx& params,
+                      Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size);
+    Result Initialize(const AudioCore::OpusDecoder::OpusMultiStreamParametersEx& params,
+                      Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size);
+
+private:
+    Result DecodeInterleavedOld(OutBuffer<BufferAttr_HipcMapAlias> out_pcm_data,
+                                Out<u32> out_data_size, Out<u32> out_sample_count,
+                                InBuffer<BufferAttr_HipcMapAlias> opus_data);
+    Result SetContext(InBuffer<BufferAttr_HipcMapAlias> decoder_context);
+    Result DecodeInterleavedForMultiStreamOld(OutBuffer<BufferAttr_HipcMapAlias> out_pcm_data,
+                                              Out<u32> out_data_size, Out<u32> out_sample_count,
+                                              InBuffer<BufferAttr_HipcMapAlias> opus_data);
+    Result SetContextForMultiStream(InBuffer<BufferAttr_HipcMapAlias> decoder_context);
+    Result DecodeInterleavedWithPerfOld(
+        OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_pcm_data,
+        Out<u32> out_data_size, Out<u32> out_sample_count, Out<u64> out_time_taken,
+        InBuffer<BufferAttr_HipcMapAlias> opus_data);
+    Result DecodeInterleavedForMultiStreamWithPerfOld(
+        OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_pcm_data,
+        Out<u32> out_data_size, Out<u32> out_sample_count, Out<u64> out_time_taken,
+        InBuffer<BufferAttr_HipcMapAlias> opus_data);
+    Result DecodeInterleavedWithPerfAndResetOld(
+        OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_pcm_data,
+        Out<u32> out_data_size, Out<u32> out_sample_count, Out<u64> out_time_taken,
+        InBuffer<BufferAttr_HipcMapAlias> opus_data, bool reset);
+    Result DecodeInterleavedForMultiStreamWithPerfAndResetOld(
+        OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_pcm_data,
+        Out<u32> out_data_size, Out<u32> out_sample_count, Out<u64> out_time_taken,
+        InBuffer<BufferAttr_HipcMapAlias> opus_data, bool reset);
+    Result DecodeInterleaved(
+        OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_pcm_data,
+        Out<u32> out_data_size, Out<u32> out_sample_count, Out<u64> out_time_taken,
+        InBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> opus_data,
+        bool reset);
+    Result DecodeInterleavedForMultiStream(
+        OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_pcm_data,
+        Out<u32> out_data_size, Out<u32> out_sample_count, Out<u64> out_time_taken,
+        InBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> opus_data,
+        bool reset);
+
+    std::unique_ptr<AudioCore::OpusDecoder::OpusDecoder> impl;
+    Common::ScratchBuffer<u8> output_data;
+};
+
+} // namespace Service::Audio

src/core/hle/service/audio/hardware_opus_decoder_manager.cpp

@@ -0,0 +1,156 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/audio/hardware_opus_decoder.h"
+#include "core/hle/service/audio/hardware_opus_decoder_manager.h"
+#include "core/hle/service/cmif_serialization.h"
+
+namespace Service::Audio {
+
+using namespace AudioCore::OpusDecoder;
+
+IHardwareOpusDecoderManager::IHardwareOpusDecoderManager(Core::System& system_)
+    : ServiceFramework{system_, "hwopus"}, system{system_}, impl{system} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IHardwareOpusDecoderManager::OpenHardwareOpusDecoder>, "OpenHardwareOpusDecoder"},
+        {1, D<&IHardwareOpusDecoderManager::GetWorkBufferSize>, "GetWorkBufferSize"},
+        {2, D<&IHardwareOpusDecoderManager::OpenHardwareOpusDecoderForMultiStream>, "OpenOpusDecoderForMultiStream"},
+        {3, D<&IHardwareOpusDecoderManager::GetWorkBufferSizeForMultiStream>, "GetWorkBufferSizeForMultiStream"},
+        {4, D<&IHardwareOpusDecoderManager::OpenHardwareOpusDecoderEx>, "OpenHardwareOpusDecoderEx"},
+        {5, D<&IHardwareOpusDecoderManager::GetWorkBufferSizeEx>, "GetWorkBufferSizeEx"},
+        {6, D<&IHardwareOpusDecoderManager::OpenHardwareOpusDecoderForMultiStreamEx>, "OpenHardwareOpusDecoderForMultiStreamEx"},
+        {7, D<&IHardwareOpusDecoderManager::GetWorkBufferSizeForMultiStreamEx>, "GetWorkBufferSizeForMultiStreamEx"},
+        {8, D<&IHardwareOpusDecoderManager::GetWorkBufferSizeExEx>, "GetWorkBufferSizeExEx"},
+        {9, D<&IHardwareOpusDecoderManager::GetWorkBufferSizeForMultiStreamExEx>, "GetWorkBufferSizeForMultiStreamExEx"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+IHardwareOpusDecoderManager::~IHardwareOpusDecoderManager() = default;
+
+Result IHardwareOpusDecoderManager::OpenHardwareOpusDecoder(
+    Out<SharedPointer<IHardwareOpusDecoder>> out_decoder, OpusParameters params, u32 tmem_size,
+    InCopyHandle<Kernel::KTransferMemory> tmem_handle) {
+    LOG_DEBUG(Service_Audio, "sample_rate {} channel_count {} transfer_memory_size {:#x}",
+              params.sample_rate, params.channel_count, tmem_size);
+
+    auto decoder{std::make_shared<IHardwareOpusDecoder>(system, impl.GetHardwareOpus())};
+    OpusParametersEx ex{
+        .sample_rate = params.sample_rate,
+        .channel_count = params.channel_count,
+        .use_large_frame_size = false,
+    };
+    R_TRY(decoder->Initialize(ex, tmem_handle.Get(), tmem_size));
+
+    *out_decoder = decoder;
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoderManager::GetWorkBufferSize(Out<u32> out_size, OpusParameters params) {
+    R_TRY(impl.GetWorkBufferSize(params, *out_size));
+    LOG_DEBUG(Service_Audio, "sample_rate {} channel_count {} -- returned size {:#x}",
+              params.sample_rate, params.channel_count, *out_size);
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoderManager::OpenHardwareOpusDecoderForMultiStream(
+    Out<SharedPointer<IHardwareOpusDecoder>> out_decoder,
+    InLargeData<OpusMultiStreamParameters, BufferAttr_HipcPointer> params, u32 tmem_size,
+    InCopyHandle<Kernel::KTransferMemory> tmem_handle) {
+    LOG_DEBUG(Service_Audio,
+              "sample_rate {} channel_count {} total_stream_count {} stereo_stream_count {} "
+              "transfer_memory_size {:#x}",
+              params->sample_rate, params->channel_count, params->total_stream_count,
+              params->stereo_stream_count, tmem_size);
+
+    auto decoder{std::make_shared<IHardwareOpusDecoder>(system, impl.GetHardwareOpus())};
+
+    OpusMultiStreamParametersEx ex{
+        .sample_rate = params->sample_rate,
+        .channel_count = params->channel_count,
+        .total_stream_count = params->total_stream_count,
+        .stereo_stream_count = params->stereo_stream_count,
+        .use_large_frame_size = false,
+        .mappings{},
+    };
+    std::memcpy(ex.mappings.data(), params->mappings.data(), sizeof(params->mappings));
+    R_TRY(decoder->Initialize(ex, tmem_handle.Get(), tmem_size));
+
+    *out_decoder = decoder;
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoderManager::GetWorkBufferSizeForMultiStream(
+    Out<u32> out_size, InLargeData<OpusMultiStreamParameters, BufferAttr_HipcPointer> params) {
+    R_TRY(impl.GetWorkBufferSizeForMultiStream(*params, *out_size));
+    LOG_DEBUG(Service_Audio, "size {:#x}", *out_size);
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoderManager::OpenHardwareOpusDecoderEx(
+    Out<SharedPointer<IHardwareOpusDecoder>> out_decoder, OpusParametersEx params, u32 tmem_size,
+    InCopyHandle<Kernel::KTransferMemory> tmem_handle) {
+    LOG_DEBUG(Service_Audio, "sample_rate {} channel_count {} transfer_memory_size {:#x}",
+              params.sample_rate, params.channel_count, tmem_size);
+
+    auto decoder{std::make_shared<IHardwareOpusDecoder>(system, impl.GetHardwareOpus())};
+    R_TRY(decoder->Initialize(params, tmem_handle.Get(), tmem_size));
+
+    *out_decoder = decoder;
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoderManager::GetWorkBufferSizeEx(Out<u32> out_size,
+                                                        OpusParametersEx params) {
+    R_TRY(impl.GetWorkBufferSizeEx(params, *out_size));
+    LOG_DEBUG(Service_Audio, "size {:#x}", *out_size);
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoderManager::OpenHardwareOpusDecoderForMultiStreamEx(
+    Out<SharedPointer<IHardwareOpusDecoder>> out_decoder,
+    InLargeData<OpusMultiStreamParametersEx, BufferAttr_HipcPointer> params, u32 tmem_size,
+    InCopyHandle<Kernel::KTransferMemory> tmem_handle) {
+    LOG_DEBUG(Service_Audio,
+              "sample_rate {} channel_count {} total_stream_count {} stereo_stream_count {} "
+              "use_large_frame_size {}"
+              "transfer_memory_size {:#x}",
+              params->sample_rate, params->channel_count, params->total_stream_count,
+              params->stereo_stream_count, params->use_large_frame_size, tmem_size);
+
+    auto decoder{std::make_shared<IHardwareOpusDecoder>(system, impl.GetHardwareOpus())};
+
+    R_TRY(decoder->Initialize(*params, tmem_handle.Get(), tmem_size));
+
+    *out_decoder = decoder;
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoderManager::GetWorkBufferSizeForMultiStreamEx(
+    Out<u32> out_size, InLargeData<OpusMultiStreamParametersEx, BufferAttr_HipcPointer> params) {
+    R_TRY(impl.GetWorkBufferSizeForMultiStreamEx(*params, *out_size));
+    LOG_DEBUG(Service_Audio,
+              "sample_rate {} channel_count {} total_stream_count {} stereo_stream_count {} "
+              "use_large_frame_size {} -- returned size {:#x}",
+              params->sample_rate, params->channel_count, params->total_stream_count,
+              params->stereo_stream_count, params->use_large_frame_size, *out_size);
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoderManager::GetWorkBufferSizeExEx(Out<u32> out_size,
+                                                          OpusParametersEx params) {
+    R_TRY(impl.GetWorkBufferSizeExEx(params, *out_size));
+    LOG_DEBUG(Service_Audio, "size {:#x}", *out_size);
+    R_SUCCEED();
+}
+
+Result IHardwareOpusDecoderManager::GetWorkBufferSizeForMultiStreamExEx(
+    Out<u32> out_size, InLargeData<OpusMultiStreamParametersEx, BufferAttr_HipcPointer> params) {
+    R_TRY(impl.GetWorkBufferSizeForMultiStreamExEx(*params, *out_size));
+    LOG_DEBUG(Service_Audio, "size {:#x}", *out_size);
+    R_SUCCEED();
+}
+
+} // namespace Service::Audio

src/core/hle/service/audio/hardware_opus_decoder_manager.h

@@ -0,0 +1,53 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "audio_core/opus/decoder_manager.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::Audio {
+
+class IHardwareOpusDecoder;
+
+using AudioCore::OpusDecoder::OpusMultiStreamParameters;
+using AudioCore::OpusDecoder::OpusMultiStreamParametersEx;
+using AudioCore::OpusDecoder::OpusParameters;
+using AudioCore::OpusDecoder::OpusParametersEx;
+
+class IHardwareOpusDecoderManager final : public ServiceFramework<IHardwareOpusDecoderManager> {
+public:
+    explicit IHardwareOpusDecoderManager(Core::System& system_);
+    ~IHardwareOpusDecoderManager() override;
+
+private:
+    Result OpenHardwareOpusDecoder(Out<SharedPointer<IHardwareOpusDecoder>> out_decoder,
+                                   OpusParameters params, u32 tmem_size,
+                                   InCopyHandle<Kernel::KTransferMemory> tmem_handle);
+    Result GetWorkBufferSize(Out<u32> out_size, OpusParameters params);
+    Result OpenHardwareOpusDecoderForMultiStream(
+        Out<SharedPointer<IHardwareOpusDecoder>> out_decoder,
+        InLargeData<OpusMultiStreamParameters, BufferAttr_HipcPointer> params, u32 tmem_size,
+        InCopyHandle<Kernel::KTransferMemory> tmem_handle);
+    Result GetWorkBufferSizeForMultiStream(
+        Out<u32> out_size, InLargeData<OpusMultiStreamParameters, BufferAttr_HipcPointer> params);
+    Result OpenHardwareOpusDecoderEx(Out<SharedPointer<IHardwareOpusDecoder>> out_decoder,
+                                     OpusParametersEx params, u32 tmem_size,
+                                     InCopyHandle<Kernel::KTransferMemory> tmem_handle);
+    Result GetWorkBufferSizeEx(Out<u32> out_size, OpusParametersEx params);
+    Result OpenHardwareOpusDecoderForMultiStreamEx(
+        Out<SharedPointer<IHardwareOpusDecoder>> out_decoder,
+        InLargeData<OpusMultiStreamParametersEx, BufferAttr_HipcPointer> params, u32 tmem_size,
+        InCopyHandle<Kernel::KTransferMemory> tmem_handle);
+    Result GetWorkBufferSizeForMultiStreamEx(
+        Out<u32> out_size, InLargeData<OpusMultiStreamParametersEx, BufferAttr_HipcPointer> params);
+    Result GetWorkBufferSizeExEx(Out<u32> out_size, OpusParametersEx params);
+    Result GetWorkBufferSizeForMultiStreamExEx(
+        Out<u32> out_size, InLargeData<OpusMultiStreamParametersEx, BufferAttr_HipcPointer> params);
+
+    Core::System& system;
+    AudioCore::OpusDecoder::OpusDecoderManager impl;
+};
+
+} // namespace Service::Audio

src/core/hle/service/cmif_serialization.h

@@ -415,7 +415,7 @@ void WriteOutArgument(bool is_domain, CallArguments& args, u8* raw_data, HLERequ
             auto& buffer = temp[OutBufferIndex];
             const size_t size = buffer.size();
 
-            if (ctx.CanWriteBuffer(OutBufferIndex)) {
+            if (size > 0 && ctx.CanWriteBuffer(OutBufferIndex)) {
                 if constexpr (ArgType::Attr & BufferAttr_HipcAutoSelect) {
                     ctx.WriteBuffer(buffer.data(), size, OutBufferIndex);
                 } else if constexpr (ArgType::Attr & BufferAttr_HipcMapAlias) {

src/core/hle/service/filesystem/fsp/fs_i_filesystem.h

@@ -9,7 +9,7 @@
 #include "core/file_sys/vfs/vfs.h"
 #include "core/hle/service/cmif_types.h"
 #include "core/hle/service/filesystem/filesystem.h"
-#include "core/hle/service/filesystem/fsp/fsp_util.h"
+#include "core/hle/service/filesystem/fsp/fsp_types.h"
 #include "core/hle/service/service.h"
 
 namespace FileSys::Sf {

src/core/hle/service/filesystem/fsp/fs_i_multi_commit_manager.cpp

@@ -0,0 +1,33 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/filesystem/fsp/fs_i_filesystem.h"
+#include "core/hle/service/filesystem/fsp/fs_i_multi_commit_manager.h"
+
+namespace Service::FileSystem {
+
+IMultiCommitManager::IMultiCommitManager(Core::System& system_)
+    : ServiceFramework{system_, "IMultiCommitManager"} {
+    static const FunctionInfo functions[] = {
+        {1, D<&IMultiCommitManager::Add>, "Add"},
+        {2, D<&IMultiCommitManager::Commit>, "Commit"},
+    };
+    RegisterHandlers(functions);
+}
+
+IMultiCommitManager::~IMultiCommitManager() = default;
+
+Result IMultiCommitManager::Add(std::shared_ptr<IFileSystem> filesystem) {
+    LOG_WARNING(Service_FS, "(STUBBED) called");
+
+    R_SUCCEED();
+}
+
+Result IMultiCommitManager::Commit() {
+    LOG_WARNING(Service_FS, "(STUBBED) called");
+
+    R_SUCCEED();
+}
+
+} // namespace Service::FileSystem

src/core/hle/service/filesystem/fsp/fs_i_multi_commit_manager.h

@@ -0,0 +1,23 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/file_sys/vfs/vfs.h"
+#include "core/hle/service/service.h"
+
+namespace Service::FileSystem {
+
+class IMultiCommitManager final : public ServiceFramework<IMultiCommitManager> {
+public:
+    explicit IMultiCommitManager(Core::System& system_);
+    ~IMultiCommitManager() override;
+
+private:
+    Result Add(std::shared_ptr<IFileSystem> filesystem);
+    Result Commit();
+
+    FileSys::VirtualFile backend;
+};
+
+} // namespace Service::FileSystem

src/core/hle/service/filesystem/fsp/fs_i_save_data_info_reader.cpp

@@ -0,0 +1,161 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/hex_util.h"
+#include "core/file_sys/savedata_factory.h"
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/filesystem/fsp/fs_i_save_data_info_reader.h"
+#include "core/hle/service/filesystem/save_data_controller.h"
+
+namespace Service::FileSystem {
+
+ISaveDataInfoReader::ISaveDataInfoReader(Core::System& system_,
+                                         std::shared_ptr<SaveDataController> save_data_controller_,
+                                         FileSys::SaveDataSpaceId space)
+    : ServiceFramework{system_, "ISaveDataInfoReader"}, save_data_controller{
+                                                            save_data_controller_} {
+    static const FunctionInfo functions[] = {
+        {0, D<&ISaveDataInfoReader::ReadSaveDataInfo>, "ReadSaveDataInfo"},
+    };
+    RegisterHandlers(functions);
+
+    FindAllSaves(space);
+}
+
+ISaveDataInfoReader::~ISaveDataInfoReader() = default;
+
+static u64 stoull_be(std::string_view str) {
+    if (str.size() != 16) {
+        return 0;
+    }
+
+    const auto bytes = Common::HexStringToArray<0x8>(str);
+    u64 out{};
+    std::memcpy(&out, bytes.data(), sizeof(u64));
+
+    return Common::swap64(out);
+}
+
+Result ISaveDataInfoReader::ReadSaveDataInfo(
+    Out<u64> out_count, OutArray<SaveDataInfo, BufferAttr_HipcMapAlias> out_entries) {
+    LOG_DEBUG(Service_FS, "called");
+
+    // Calculate how many entries we can fit in the output buffer
+    const u64 count_entries = out_entries.size();
+
+    // Cap at total number of entries.
+    const u64 actual_entries = std::min(count_entries, info.size() - next_entry_index);
+
+    // Determine data start and end
+    const auto* begin = reinterpret_cast<u8*>(info.data() + next_entry_index);
+    const auto* end = reinterpret_cast<u8*>(info.data() + next_entry_index + actual_entries);
+    const auto range_size = static_cast<std::size_t>(std::distance(begin, end));
+
+    next_entry_index += actual_entries;
+
+    // Write the data to memory
+    std::memcpy(out_entries.data(), begin, range_size);
+    *out_count = actual_entries;
+
+    R_SUCCEED();
+}
+
+void ISaveDataInfoReader::FindAllSaves(FileSys::SaveDataSpaceId space) {
+    FileSys::VirtualDir save_root{};
+    const auto result = save_data_controller->OpenSaveDataSpace(&save_root, space);
+
+    if (result != ResultSuccess || save_root == nullptr) {
+        LOG_ERROR(Service_FS, "The save root for the space_id={:02X} was invalid!", space);
+        return;
+    }
+
+    for (const auto& type : save_root->GetSubdirectories()) {
+        if (type->GetName() == "save") {
+            FindNormalSaves(space, type);
+        } else if (space == FileSys::SaveDataSpaceId::Temporary) {
+            FindTemporaryStorageSaves(space, type);
+        }
+    }
+}
+
+void ISaveDataInfoReader::FindNormalSaves(FileSys::SaveDataSpaceId space,
+                                          const FileSys::VirtualDir& type) {
+    for (const auto& save_id : type->GetSubdirectories()) {
+        for (const auto& user_id : save_id->GetSubdirectories()) {
+            // Skip non user id subdirectories
+            if (user_id->GetName().size() != 0x20) {
+                continue;
+            }
+
+            const auto save_id_numeric = stoull_be(save_id->GetName());
+            auto user_id_numeric = Common::HexStringToArray<0x10>(user_id->GetName());
+            std::reverse(user_id_numeric.begin(), user_id_numeric.end());
+
+            if (save_id_numeric != 0) {
+                // System Save Data
+                info.emplace_back(SaveDataInfo{
+                    0,
+                    space,
+                    FileSys::SaveDataType::System,
+                    {},
+                    user_id_numeric,
+                    save_id_numeric,
+                    0,
+                    user_id->GetSize(),
+                    {},
+                    {},
+                });
+
+                continue;
+            }
+
+            for (const auto& title_id : user_id->GetSubdirectories()) {
+                const auto device = std::all_of(user_id_numeric.begin(), user_id_numeric.end(),
+                                                [](u8 val) { return val == 0; });
+                info.emplace_back(SaveDataInfo{
+                    0,
+                    space,
+                    device ? FileSys::SaveDataType::Device : FileSys::SaveDataType::Account,
+                    {},
+                    user_id_numeric,
+                    save_id_numeric,
+                    stoull_be(title_id->GetName()),
+                    title_id->GetSize(),
+                    {},
+                    {},
+                });
+            }
+        }
+    }
+}
+
+void ISaveDataInfoReader::FindTemporaryStorageSaves(FileSys::SaveDataSpaceId space,
+                                                    const FileSys::VirtualDir& type) {
+    for (const auto& user_id : type->GetSubdirectories()) {
+        // Skip non user id subdirectories
+        if (user_id->GetName().size() != 0x20) {
+            continue;
+        }
+        for (const auto& title_id : user_id->GetSubdirectories()) {
+            if (!title_id->GetFiles().empty() || !title_id->GetSubdirectories().empty()) {
+                auto user_id_numeric = Common::HexStringToArray<0x10>(user_id->GetName());
+                std::reverse(user_id_numeric.begin(), user_id_numeric.end());
+
+                info.emplace_back(SaveDataInfo{
+                    0,
+                    space,
+                    FileSys::SaveDataType::Temporary,
+                    {},
+                    user_id_numeric,
+                    stoull_be(type->GetName()),
+                    stoull_be(title_id->GetName()),
+                    title_id->GetSize(),
+                    {},
+                    {},
+                });
+            }
+        }
+    }
+}
+
+} // namespace Service::FileSystem

src/core/hle/service/filesystem/fsp/fs_i_save_data_info_reader.h

@@ -0,0 +1,50 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <vector>
+#include "common/common_types.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::FileSystem {
+
+class SaveDataController;
+
+class ISaveDataInfoReader final : public ServiceFramework<ISaveDataInfoReader> {
+public:
+    explicit ISaveDataInfoReader(Core::System& system_,
+                                 std::shared_ptr<SaveDataController> save_data_controller_,
+                                 FileSys::SaveDataSpaceId space);
+    ~ISaveDataInfoReader() override;
+
+    struct SaveDataInfo {
+        u64_le save_id_unknown;
+        FileSys::SaveDataSpaceId space;
+        FileSys::SaveDataType type;
+        INSERT_PADDING_BYTES(0x6);
+        std::array<u8, 0x10> user_id;
+        u64_le save_id;
+        u64_le title_id;
+        u64_le save_image_size;
+        u16_le index;
+        FileSys::SaveDataRank rank;
+        INSERT_PADDING_BYTES(0x25);
+    };
+    static_assert(sizeof(SaveDataInfo) == 0x60, "SaveDataInfo has incorrect size.");
+
+    Result ReadSaveDataInfo(Out<u64> out_count,
+                            OutArray<SaveDataInfo, BufferAttr_HipcMapAlias> out_entries);
+
+private:
+    void FindAllSaves(FileSys::SaveDataSpaceId space);
+    void FindNormalSaves(FileSys::SaveDataSpaceId space, const FileSys::VirtualDir& type);
+    void FindTemporaryStorageSaves(FileSys::SaveDataSpaceId space, const FileSys::VirtualDir& type);
+
+    std::shared_ptr<SaveDataController> save_data_controller;
+    std::vector<SaveDataInfo> info;
+    u64 next_entry_index = 0;
+};
+
+} // namespace Service::FileSystem

src/core/hle/service/filesystem/fsp/fs_i_storage.cpp

@@ -2,61 +2,44 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "core/file_sys/errors.h"
+#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/filesystem/fsp/fs_i_storage.h"
-#include "core/hle/service/ipc_helpers.h"
 
 namespace Service::FileSystem {
 
 IStorage::IStorage(Core::System& system_, FileSys::VirtualFile backend_)
     : ServiceFramework{system_, "IStorage"}, backend(std::move(backend_)) {
     static const FunctionInfo functions[] = {
-        {0, &IStorage::Read, "Read"},
+        {0, D<&IStorage::Read>, "Read"},
         {1, nullptr, "Write"},
         {2, nullptr, "Flush"},
         {3, nullptr, "SetSize"},
-        {4, &IStorage::GetSize, "GetSize"},
+        {4, D<&IStorage::GetSize>, "GetSize"},
         {5, nullptr, "OperateRange"},
     };
     RegisterHandlers(functions);
 }
 
-void IStorage::Read(HLERequestContext& ctx) {
+Result IStorage::Read(
-    IPC::RequestParser rp{ctx};
+    OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_bytes,
-    const s64 offset = rp.Pop<s64>();
+    s64 offset, s64 length) {
-    const s64 length = rp.Pop<s64>();
-
     LOG_DEBUG(Service_FS, "called, offset=0x{:X}, length={}", offset, length);
 
-    // Error checking
+    R_UNLESS(length >= 0, FileSys::ResultInvalidSize);
-    if (length < 0) {
+    R_UNLESS(offset >= 0, FileSys::ResultInvalidOffset);
-        LOG_ERROR(Service_FS, "Length is less than 0, length={}", length);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(FileSys::ResultInvalidSize);
-        return;
-    }
-    if (offset < 0) {
-        LOG_ERROR(Service_FS, "Offset is less than 0, offset={}", offset);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(FileSys::ResultInvalidOffset);
-        return;
-    }
 
     // Read the data from the Storage backend
-    std::vector<u8> output = backend->ReadBytes(length, offset);
+    backend->Read(out_bytes.data(), length, offset);
-    // Write the data to memory
-    ctx.WriteBuffer(output);
 
-    IPC::ResponseBuilder rb{ctx, 2};
+    R_SUCCEED();
-    rb.Push(ResultSuccess);
 }
 
-void IStorage::GetSize(HLERequestContext& ctx) {
+Result IStorage::GetSize(Out<u64> out_size) {
-    const u64 size = backend->GetSize();
+    *out_size = backend->GetSize();
-    LOG_DEBUG(Service_FS, "called, size={}", size);
 
-    IPC::ResponseBuilder rb{ctx, 4};
+    LOG_DEBUG(Service_FS, "called, size={}", *out_size);
-    rb.Push(ResultSuccess);
+
-    rb.Push<u64>(size);
+    R_SUCCEED();
 }
 
 } // namespace Service::FileSystem

src/core/hle/service/filesystem/fsp/fs_i_storage.h

@@ -4,6 +4,7 @@
 #pragma once
 
 #include "core/file_sys/vfs/vfs.h"
+#include "core/hle/service/cmif_types.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/service.h"
 
@@ -16,8 +17,10 @@ public:
 private:
     FileSys::VirtualFile backend;
 
-    void Read(HLERequestContext& ctx);
+    Result Read(
-    void GetSize(HLERequestContext& ctx);
+        OutBuffer<BufferAttr_HipcMapAlias | BufferAttr_HipcMapTransferAllowsNonSecure> out_bytes,
+        s64 offset, s64 length);
+    Result GetSize(Out<u64> out_size);
 };
 
 } // namespace Service::FileSystem

src/core/hle/service/filesystem/fsp/fsp_srv.cpp

@@ -27,8 +27,11 @@
 #include "core/file_sys/system_archive/system_archive.h"
 #include "core/file_sys/vfs/vfs.h"
 #include "core/hle/result.h"
+#include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/filesystem/fsp/fs_i_filesystem.h"
+#include "core/hle/service/filesystem/fsp/fs_i_multi_commit_manager.h"
+#include "core/hle/service/filesystem/fsp/fs_i_save_data_info_reader.h"
 #include "core/hle/service/filesystem/fsp/fs_i_storage.h"
 #include "core/hle/service/filesystem/fsp/fsp_srv.h"
 #include "core/hle/service/filesystem/romfs_controller.h"
@@ -39,182 +42,6 @@
 #include "core/reporter.h"
 
 namespace Service::FileSystem {
-enum class FileSystemProxyType : u8 {
-    Code = 0,
-    Rom = 1,
-    Logo = 2,
-    Control = 3,
-    Manual = 4,
-    Meta = 5,
-    Data = 6,
-    Package = 7,
-    RegisteredUpdate = 8,
-};
-
-class ISaveDataInfoReader final : public ServiceFramework<ISaveDataInfoReader> {
-public:
-    explicit ISaveDataInfoReader(Core::System& system_,
-                                 std::shared_ptr<SaveDataController> save_data_controller_,
-                                 FileSys::SaveDataSpaceId space)
-        : ServiceFramework{system_, "ISaveDataInfoReader"}, save_data_controller{
-                                                                save_data_controller_} {
-        static const FunctionInfo functions[] = {
-            {0, &ISaveDataInfoReader::ReadSaveDataInfo, "ReadSaveDataInfo"},
-        };
-        RegisterHandlers(functions);
-
-        FindAllSaves(space);
-    }
-
-    void ReadSaveDataInfo(HLERequestContext& ctx) {
-        LOG_DEBUG(Service_FS, "called");
-
-        // Calculate how many entries we can fit in the output buffer
-        const u64 count_entries = ctx.GetWriteBufferNumElements<SaveDataInfo>();
-
-        // Cap at total number of entries.
-        const u64 actual_entries = std::min(count_entries, info.size() - next_entry_index);
-
-        // Determine data start and end
-        const auto* begin = reinterpret_cast<u8*>(info.data() + next_entry_index);
-        const auto* end = reinterpret_cast<u8*>(info.data() + next_entry_index + actual_entries);
-        const auto range_size = static_cast<std::size_t>(std::distance(begin, end));
-
-        next_entry_index += actual_entries;
-
-        // Write the data to memory
-        ctx.WriteBuffer(begin, range_size);
-
-        IPC::ResponseBuilder rb{ctx, 4};
-        rb.Push(ResultSuccess);
-        rb.Push<u64>(actual_entries);
-    }
-
-private:
-    static u64 stoull_be(std::string_view str) {
-        if (str.size() != 16)
-            return 0;
-
-        const auto bytes = Common::HexStringToArray<0x8>(str);
-        u64 out{};
-        std::memcpy(&out, bytes.data(), sizeof(u64));
-
-        return Common::swap64(out);
-    }
-
-    void FindAllSaves(FileSys::SaveDataSpaceId space) {
-        FileSys::VirtualDir save_root{};
-        const auto result = save_data_controller->OpenSaveDataSpace(&save_root, space);
-
-        if (result != ResultSuccess || save_root == nullptr) {
-            LOG_ERROR(Service_FS, "The save root for the space_id={:02X} was invalid!", space);
-            return;
-        }
-
-        for (const auto& type : save_root->GetSubdirectories()) {
-            if (type->GetName() == "save") {
-                for (const auto& save_id : type->GetSubdirectories()) {
-                    for (const auto& user_id : save_id->GetSubdirectories()) {
-                        // Skip non user id subdirectories
-                        if (user_id->GetName().size() != 0x20) {
-                            continue;
-                        }
-
-                        const auto save_id_numeric = stoull_be(save_id->GetName());
-                        auto user_id_numeric = Common::HexStringToArray<0x10>(user_id->GetName());
-                        std::reverse(user_id_numeric.begin(), user_id_numeric.end());
-
-                        if (save_id_numeric != 0) {
-                            // System Save Data
-                            info.emplace_back(SaveDataInfo{
-                                0,
-                                space,
-                                FileSys::SaveDataType::SystemSaveData,
-                                {},
-                                user_id_numeric,
-                                save_id_numeric,
-                                0,
-                                user_id->GetSize(),
-                                {},
-                                {},
-                            });
-
-                            continue;
-                        }
-
-                        for (const auto& title_id : user_id->GetSubdirectories()) {
-                            const auto device =
-                                std::all_of(user_id_numeric.begin(), user_id_numeric.end(),
-                                            [](u8 val) { return val == 0; });
-                            info.emplace_back(SaveDataInfo{
-                                0,
-                                space,
-                                device ? FileSys::SaveDataType::DeviceSaveData
-                                       : FileSys::SaveDataType::SaveData,
-                                {},
-                                user_id_numeric,
-                                save_id_numeric,
-                                stoull_be(title_id->GetName()),
-                                title_id->GetSize(),
-                                {},
-                                {},
-                            });
-                        }
-                    }
-                }
-            } else if (space == FileSys::SaveDataSpaceId::TemporaryStorage) {
-                // Temporary Storage
-                for (const auto& user_id : type->GetSubdirectories()) {
-                    // Skip non user id subdirectories
-                    if (user_id->GetName().size() != 0x20) {
-                        continue;
-                    }
-                    for (const auto& title_id : user_id->GetSubdirectories()) {
-                        if (!title_id->GetFiles().empty() ||
-                            !title_id->GetSubdirectories().empty()) {
-                            auto user_id_numeric =
-                                Common::HexStringToArray<0x10>(user_id->GetName());
-                            std::reverse(user_id_numeric.begin(), user_id_numeric.end());
-
-                            info.emplace_back(SaveDataInfo{
-                                0,
-                                space,
-                                FileSys::SaveDataType::TemporaryStorage,
-                                {},
-                                user_id_numeric,
-                                stoull_be(type->GetName()),
-                                stoull_be(title_id->GetName()),
-                                title_id->GetSize(),
-                                {},
-                                {},
-                            });
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-    struct SaveDataInfo {
-        u64_le save_id_unknown;
-        FileSys::SaveDataSpaceId space;
-        FileSys::SaveDataType type;
-        INSERT_PADDING_BYTES(0x6);
-        std::array<u8, 0x10> user_id;
-        u64_le save_id;
-        u64_le title_id;
-        u64_le save_image_size;
-        u16_le index;
-        FileSys::SaveDataRank rank;
-        INSERT_PADDING_BYTES(0x25);
-    };
-    static_assert(sizeof(SaveDataInfo) == 0x60, "SaveDataInfo has incorrect size.");
-
-    ProcessId process_id = 0;
-    std::shared_ptr<SaveDataController> save_data_controller;
-    std::vector<SaveDataInfo> info;
-    u64 next_entry_index = 0;
-};
 
 FSP_SRV::FSP_SRV(Core::System& system_)
     : ServiceFramework{system_, "fsp-srv"}, fsc{system.GetFileSystemController()},
@@ -222,20 +49,20 @@ FSP_SRV::FSP_SRV(Core::System& system_)
     // clang-format off
     static const FunctionInfo functions[] = {
         {0, nullptr, "OpenFileSystem"},
-        {1, &FSP_SRV::SetCurrentProcess, "SetCurrentProcess"},
+        {1, D<&FSP_SRV::SetCurrentProcess>, "SetCurrentProcess"},
         {2, nullptr, "OpenDataFileSystemByCurrentProcess"},
-        {7, &FSP_SRV::OpenFileSystemWithPatch, "OpenFileSystemWithPatch"},
+        {7, D<&FSP_SRV::OpenFileSystemWithPatch>, "OpenFileSystemWithPatch"},
         {8, nullptr, "OpenFileSystemWithId"},
         {9, nullptr, "OpenDataFileSystemByApplicationId"},
         {11, nullptr, "OpenBisFileSystem"},
         {12, nullptr, "OpenBisStorage"},
         {13, nullptr, "InvalidateBisCache"},
         {17, nullptr, "OpenHostFileSystem"},
-        {18, &FSP_SRV::OpenSdCardFileSystem, "OpenSdCardFileSystem"},
+        {18, D<&FSP_SRV::OpenSdCardFileSystem>, "OpenSdCardFileSystem"},
         {19, nullptr, "FormatSdCardFileSystem"},
         {21, nullptr, "DeleteSaveDataFileSystem"},
-        {22, &FSP_SRV::CreateSaveDataFileSystem, "CreateSaveDataFileSystem"},
+        {22, D<&FSP_SRV::CreateSaveDataFileSystem>, "CreateSaveDataFileSystem"},
-        {23, &FSP_SRV::CreateSaveDataFileSystemBySystemSaveDataId, "CreateSaveDataFileSystemBySystemSaveDataId"},
+        {23, D<&FSP_SRV::CreateSaveDataFileSystemBySystemSaveDataId>, "CreateSaveDataFileSystemBySystemSaveDataId"},
         {24, nullptr, "RegisterSaveDataFileSystemAtomicDeletion"},
         {25, nullptr, "DeleteSaveDataFileSystemBySaveDataSpaceId"},
         {26, nullptr, "FormatSdCardDryRun"},
@@ -245,26 +72,26 @@ FSP_SRV::FSP_SRV(Core::System& system_)
         {31, nullptr, "OpenGameCardFileSystem"},
         {32, nullptr, "ExtendSaveDataFileSystem"},
         {33, nullptr, "DeleteCacheStorage"},
-        {34, &FSP_SRV::GetCacheStorageSize, "GetCacheStorageSize"},
+        {34, D<&FSP_SRV::GetCacheStorageSize>, "GetCacheStorageSize"},
         {35, nullptr, "CreateSaveDataFileSystemByHashSalt"},
         {36, nullptr, "OpenHostFileSystemWithOption"},
-        {51, &FSP_SRV::OpenSaveDataFileSystem, "OpenSaveDataFileSystem"},
+        {51, D<&FSP_SRV::OpenSaveDataFileSystem>, "OpenSaveDataFileSystem"},
-        {52, &FSP_SRV::OpenSaveDataFileSystemBySystemSaveDataId, "OpenSaveDataFileSystemBySystemSaveDataId"},
+        {52, D<&FSP_SRV::OpenSaveDataFileSystemBySystemSaveDataId>, "OpenSaveDataFileSystemBySystemSaveDataId"},
-        {53, &FSP_SRV::OpenReadOnlySaveDataFileSystem, "OpenReadOnlySaveDataFileSystem"},
+        {53, D<&FSP_SRV::OpenReadOnlySaveDataFileSystem>, "OpenReadOnlySaveDataFileSystem"},
         {57, nullptr, "ReadSaveDataFileSystemExtraDataBySaveDataSpaceId"},
         {58, nullptr, "ReadSaveDataFileSystemExtraData"},
         {59, nullptr, "WriteSaveDataFileSystemExtraData"},
         {60, nullptr, "OpenSaveDataInfoReader"},
-        {61, &FSP_SRV::OpenSaveDataInfoReaderBySaveDataSpaceId, "OpenSaveDataInfoReaderBySaveDataSpaceId"},
+        {61, D<&FSP_SRV::OpenSaveDataInfoReaderBySaveDataSpaceId>, "OpenSaveDataInfoReaderBySaveDataSpaceId"},
-        {62, &FSP_SRV::OpenSaveDataInfoReaderOnlyCacheStorage, "OpenSaveDataInfoReaderOnlyCacheStorage"},
+        {62, D<&FSP_SRV::OpenSaveDataInfoReaderOnlyCacheStorage>, "OpenSaveDataInfoReaderOnlyCacheStorage"},
         {64, nullptr, "OpenSaveDataInternalStorageFileSystem"},
         {65, nullptr, "UpdateSaveDataMacForDebug"},
         {66, nullptr, "WriteSaveDataFileSystemExtraData2"},
         {67, nullptr, "FindSaveDataWithFilter"},
         {68, nullptr, "OpenSaveDataInfoReaderBySaveDataFilter"},
         {69, nullptr, "ReadSaveDataFileSystemExtraDataBySaveDataAttribute"},
-        {70, &FSP_SRV::WriteSaveDataFileSystemExtraDataBySaveDataAttribute, "WriteSaveDataFileSystemExtraDataBySaveDataAttribute"},
+        {70, D<&FSP_SRV::WriteSaveDataFileSystemExtraDataBySaveDataAttribute>, "WriteSaveDataFileSystemExtraDataBySaveDataAttribute"},
-        {71, &FSP_SRV::ReadSaveDataFileSystemExtraDataWithMaskBySaveDataAttribute, "ReadSaveDataFileSystemExtraDataWithMaskBySaveDataAttribute"},
+        {71, D<&FSP_SRV::ReadSaveDataFileSystemExtraDataWithMaskBySaveDataAttribute>, "ReadSaveDataFileSystemExtraDataWithMaskBySaveDataAttribute"},
         {80, nullptr, "OpenSaveDataMetaFile"},
         {81, nullptr, "OpenSaveDataTransferManager"},
         {82, nullptr, "OpenSaveDataTransferManagerVersion2"},
@@ -279,12 +106,12 @@ FSP_SRV::FSP_SRV(Core::System& system_)
         {110, nullptr, "OpenContentStorageFileSystem"},
         {120, nullptr, "OpenCloudBackupWorkStorageFileSystem"},
         {130, nullptr, "OpenCustomStorageFileSystem"},
-        {200, &FSP_SRV::OpenDataStorageByCurrentProcess, "OpenDataStorageByCurrentProcess"},
+        {200, D<&FSP_SRV::OpenDataStorageByCurrentProcess>, "OpenDataStorageByCurrentProcess"},
         {201, nullptr, "OpenDataStorageByProgramId"},
-        {202, &FSP_SRV::OpenDataStorageByDataId, "OpenDataStorageByDataId"},
+        {202, D<&FSP_SRV::OpenDataStorageByDataId>, "OpenDataStorageByDataId"},
-        {203, &FSP_SRV::OpenPatchDataStorageByCurrentProcess, "OpenPatchDataStorageByCurrentProcess"},
+        {203, D<&FSP_SRV::OpenPatchDataStorageByCurrentProcess>, "OpenPatchDataStorageByCurrentProcess"},
         {204, nullptr, "OpenDataFileSystemByProgramIndex"},
-        {205, &FSP_SRV::OpenDataStorageWithProgramIndex, "OpenDataStorageWithProgramIndex"},
+        {205, D<&FSP_SRV::OpenDataStorageWithProgramIndex>, "OpenDataStorageWithProgramIndex"},
         {206, nullptr, "OpenDataStorageByPath"},
         {400, nullptr, "OpenDeviceOperator"},
         {500, nullptr, "OpenSdCardDetectionEventNotifier"},
@@ -324,25 +151,25 @@ FSP_SRV::FSP_SRV(Core::System& system_)
         {1000, nullptr, "SetBisRootForHost"},
         {1001, nullptr, "SetSaveDataSize"},
         {1002, nullptr, "SetSaveDataRootPath"},
-        {1003, &FSP_SRV::DisableAutoSaveDataCreation, "DisableAutoSaveDataCreation"},
+        {1003, D<&FSP_SRV::DisableAutoSaveDataCreation>, "DisableAutoSaveDataCreation"},
-        {1004, &FSP_SRV::SetGlobalAccessLogMode, "SetGlobalAccessLogMode"},
+        {1004, D<&FSP_SRV::SetGlobalAccessLogMode>, "SetGlobalAccessLogMode"},
-        {1005, &FSP_SRV::GetGlobalAccessLogMode, "GetGlobalAccessLogMode"},
+        {1005, D<&FSP_SRV::GetGlobalAccessLogMode>, "GetGlobalAccessLogMode"},
-        {1006, &FSP_SRV::OutputAccessLogToSdCard, "OutputAccessLogToSdCard"},
+        {1006, D<&FSP_SRV::OutputAccessLogToSdCard>, "OutputAccessLogToSdCard"},
         {1007, nullptr, "RegisterUpdatePartition"},
         {1008, nullptr, "OpenRegisteredUpdatePartition"},
         {1009, nullptr, "GetAndClearMemoryReportInfo"},
         {1010, nullptr, "SetDataStorageRedirectTarget"},
-        {1011, &FSP_SRV::GetProgramIndexForAccessLog, "GetProgramIndexForAccessLog"},
+        {1011, D<&FSP_SRV::GetProgramIndexForAccessLog>, "GetProgramIndexForAccessLog"},
         {1012, nullptr, "GetFsStackUsage"},
         {1013, nullptr, "UnsetSaveDataRootPath"},
         {1014, nullptr, "OutputMultiProgramTagAccessLog"},
-        {1016, &FSP_SRV::FlushAccessLogOnSdCard, "FlushAccessLogOnSdCard"},
+        {1016, D<&FSP_SRV::FlushAccessLogOnSdCard>, "FlushAccessLogOnSdCard"},
         {1017, nullptr, "OutputApplicationInfoAccessLog"},
         {1018, nullptr, "SetDebugOption"},
         {1019, nullptr, "UnsetDebugOption"},
         {1100, nullptr, "OverrideSaveDataTransferTokenSignVerificationKey"},
         {1110, nullptr, "CorruptSaveDataFileSystemBySaveDataSpaceId2"},
-        {1200, &FSP_SRV::OpenMultiCommitManager, "OpenMultiCommitManager"},
+        {1200, D<&FSP_SRV::OpenMultiCommitManager>, "OpenMultiCommitManager"},
         {1300, nullptr, "OpenBisWiper"},
     };
     // clang-format on
@@ -355,234 +182,177 @@ FSP_SRV::FSP_SRV(Core::System& system_)
 
 FSP_SRV::~FSP_SRV() = default;
 
-void FSP_SRV::SetCurrentProcess(HLERequestContext& ctx) {
+Result FSP_SRV::SetCurrentProcess(ClientProcessId pid) {
-    current_process_id = ctx.GetPID();
+    current_process_id = *pid;
 
     LOG_DEBUG(Service_FS, "called. current_process_id=0x{:016X}", current_process_id);
 
-    const auto res =
+    R_RETURN(
-        fsc.OpenProcess(&program_id, &save_data_controller, &romfs_controller, current_process_id);
+        fsc.OpenProcess(&program_id, &save_data_controller, &romfs_controller, current_process_id));
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(res);
 }
 
-void FSP_SRV::OpenFileSystemWithPatch(HLERequestContext& ctx) {
+Result FSP_SRV::OpenFileSystemWithPatch(OutInterface<IFileSystem> out_interface,
-    IPC::RequestParser rp{ctx};
+                                        FileSystemProxyType type, u64 open_program_id) {
-
+    LOG_ERROR(Service_FS, "(STUBBED) called with type={}, program_id={:016X}", type,
-    struct InputParameters {
+              open_program_id);
-        FileSystemProxyType type;
-        u64 program_id;
-    };
-    static_assert(sizeof(InputParameters) == 0x10, "InputParameters has wrong size");
-
-    const auto params = rp.PopRaw<InputParameters>();
-    LOG_ERROR(Service_FS, "(STUBBED) called with type={}, program_id={:016X}", params.type,
-              params.program_id);
 
     // FIXME: many issues with this
-    ASSERT(params.type == FileSystemProxyType::Manual);
+    ASSERT(type == FileSystemProxyType::Manual);
     const auto manual_romfs = romfs_controller->OpenPatchedRomFS(
-        params.program_id, FileSys::ContentRecordType::HtmlDocument);
+        open_program_id, FileSys::ContentRecordType::HtmlDocument);
 
     ASSERT(manual_romfs != nullptr);
 
     const auto extracted_romfs = FileSys::ExtractRomFS(manual_romfs);
     ASSERT(extracted_romfs != nullptr);
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    *out_interface = std::make_shared<IFileSystem>(
-    rb.Push(ResultSuccess);
+        system, extracted_romfs, SizeGetter::FromStorageId(fsc, FileSys::StorageId::NandUser));
-    rb.PushIpcInterface<IFileSystem>(system, extracted_romfs,
+
-                                     SizeGetter::FromStorageId(fsc, FileSys::StorageId::NandUser));
+    R_SUCCEED();
 }
 
-void FSP_SRV::OpenSdCardFileSystem(HLERequestContext& ctx) {
+Result FSP_SRV::OpenSdCardFileSystem(OutInterface<IFileSystem> out_interface) {
     LOG_DEBUG(Service_FS, "called");
 
     FileSys::VirtualDir sdmc_dir{};
     fsc.OpenSDMC(&sdmc_dir);
 
-    auto filesystem = std::make_shared<IFileSystem>(
+    *out_interface = std::make_shared<IFileSystem>(
         system, sdmc_dir, SizeGetter::FromStorageId(fsc, FileSys::StorageId::SdCard));
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    R_SUCCEED();
-    rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IFileSystem>(std::move(filesystem));
 }
 
-void FSP_SRV::CreateSaveDataFileSystem(HLERequestContext& ctx) {
+Result FSP_SRV::CreateSaveDataFileSystem(FileSys::SaveDataCreationInfo save_create_struct,
-    IPC::RequestParser rp{ctx};
+                                         FileSys::SaveDataAttribute save_struct, u128 uid) {
-
-    auto save_struct = rp.PopRaw<FileSys::SaveDataAttribute>();
-    [[maybe_unused]] auto save_create_struct = rp.PopRaw<std::array<u8, 0x40>>();
-    u128 uid = rp.PopRaw<u128>();
-
     LOG_DEBUG(Service_FS, "called save_struct = {}, uid = {:016X}{:016X}", save_struct.DebugInfo(),
               uid[1], uid[0]);
 
     FileSys::VirtualDir save_data_dir{};
-    save_data_controller->CreateSaveData(&save_data_dir, FileSys::SaveDataSpaceId::NandUser,
+    R_RETURN(save_data_controller->CreateSaveData(&save_data_dir, FileSys::SaveDataSpaceId::User,
-                                         save_struct);
+                                                  save_struct));
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
 }
 
-void FSP_SRV::CreateSaveDataFileSystemBySystemSaveDataId(HLERequestContext& ctx) {
+Result FSP_SRV::CreateSaveDataFileSystemBySystemSaveDataId(
-    IPC::RequestParser rp{ctx};
+    FileSys::SaveDataCreationInfo save_create_struct, FileSys::SaveDataAttribute save_struct) {
-
-    auto save_struct = rp.PopRaw<FileSys::SaveDataAttribute>();
-    [[maybe_unused]] auto save_create_struct = rp.PopRaw<std::array<u8, 0x40>>();
-
     LOG_DEBUG(Service_FS, "called save_struct = {}", save_struct.DebugInfo());
 
     FileSys::VirtualDir save_data_dir{};
-    save_data_controller->CreateSaveData(&save_data_dir, FileSys::SaveDataSpaceId::NandSystem,
+    R_RETURN(save_data_controller->CreateSaveData(&save_data_dir, FileSys::SaveDataSpaceId::System,
-                                         save_struct);
+                                                  save_struct));
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(ResultSuccess);
 }
 
-void FSP_SRV::OpenSaveDataFileSystem(HLERequestContext& ctx) {
+Result FSP_SRV::OpenSaveDataFileSystem(OutInterface<IFileSystem> out_interface,
-    IPC::RequestParser rp{ctx};
+                                       FileSys::SaveDataSpaceId space_id,
-
+                                       FileSys::SaveDataAttribute attribute) {
-    struct Parameters {
-        FileSys::SaveDataSpaceId space_id;
-        FileSys::SaveDataAttribute attribute;
-    };
-
-    const auto parameters = rp.PopRaw<Parameters>();
-
     LOG_INFO(Service_FS, "called.");
 
     FileSys::VirtualDir dir{};
-    auto result =
+    R_TRY(save_data_controller->OpenSaveData(&dir, space_id, attribute));
-        save_data_controller->OpenSaveData(&dir, parameters.space_id, parameters.attribute);
-    if (result != ResultSuccess) {
-        IPC::ResponseBuilder rb{ctx, 2, 0, 0};
-        rb.Push(FileSys::ResultTargetNotFound);
-        return;
-    }
 
     FileSys::StorageId id{};
-    switch (parameters.space_id) {
+    switch (space_id) {
-    case FileSys::SaveDataSpaceId::NandUser:
+    case FileSys::SaveDataSpaceId::User:
         id = FileSys::StorageId::NandUser;
         break;
-    case FileSys::SaveDataSpaceId::SdCardSystem:
+    case FileSys::SaveDataSpaceId::SdSystem:
-    case FileSys::SaveDataSpaceId::SdCardUser:
+    case FileSys::SaveDataSpaceId::SdUser:
         id = FileSys::StorageId::SdCard;
         break;
-    case FileSys::SaveDataSpaceId::NandSystem:
+    case FileSys::SaveDataSpaceId::System:
         id = FileSys::StorageId::NandSystem;
         break;
-    case FileSys::SaveDataSpaceId::TemporaryStorage:
+    case FileSys::SaveDataSpaceId::Temporary:
     case FileSys::SaveDataSpaceId::ProperSystem:
     case FileSys::SaveDataSpaceId::SafeMode:
         ASSERT(false);
     }
 
-    auto filesystem =
+    *out_interface =
         std::make_shared<IFileSystem>(system, std::move(dir), SizeGetter::FromStorageId(fsc, id));
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    R_SUCCEED();
-    rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IFileSystem>(std::move(filesystem));
 }
 
-void FSP_SRV::OpenSaveDataFileSystemBySystemSaveDataId(HLERequestContext& ctx) {
+Result FSP_SRV::OpenSaveDataFileSystemBySystemSaveDataId(OutInterface<IFileSystem> out_interface,
+                                                         FileSys::SaveDataSpaceId space_id,
+                                                         FileSys::SaveDataAttribute attribute) {
     LOG_WARNING(Service_FS, "(STUBBED) called, delegating to 51 OpenSaveDataFilesystem");
-    OpenSaveDataFileSystem(ctx);
+    R_RETURN(OpenSaveDataFileSystem(out_interface, space_id, attribute));
 }
 
-void FSP_SRV::OpenReadOnlySaveDataFileSystem(HLERequestContext& ctx) {
+Result FSP_SRV::OpenReadOnlySaveDataFileSystem(OutInterface<IFileSystem> out_interface,
+                                               FileSys::SaveDataSpaceId space_id,
+                                               FileSys::SaveDataAttribute attribute) {
     LOG_WARNING(Service_FS, "(STUBBED) called, delegating to 51 OpenSaveDataFilesystem");
-    OpenSaveDataFileSystem(ctx);
+    R_RETURN(OpenSaveDataFileSystem(out_interface, space_id, attribute));
 }
 
-void FSP_SRV::OpenSaveDataInfoReaderBySaveDataSpaceId(HLERequestContext& ctx) {
+Result FSP_SRV::OpenSaveDataInfoReaderBySaveDataSpaceId(
-    IPC::RequestParser rp{ctx};
+    OutInterface<ISaveDataInfoReader> out_interface, FileSys::SaveDataSpaceId space) {
-    const auto space = rp.PopRaw<FileSys::SaveDataSpaceId>();
     LOG_INFO(Service_FS, "called, space={}", space);
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    *out_interface = std::make_shared<ISaveDataInfoReader>(system, save_data_controller, space);
-    rb.Push(ResultSuccess);
+
-    rb.PushIpcInterface<ISaveDataInfoReader>(
+    R_SUCCEED();
-        std::make_shared<ISaveDataInfoReader>(system, save_data_controller, space));
 }
 
-void FSP_SRV::OpenSaveDataInfoReaderOnlyCacheStorage(HLERequestContext& ctx) {
+Result FSP_SRV::OpenSaveDataInfoReaderOnlyCacheStorage(
+    OutInterface<ISaveDataInfoReader> out_interface) {
     LOG_WARNING(Service_FS, "(STUBBED) called");
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    *out_interface = std::make_shared<ISaveDataInfoReader>(system, save_data_controller,
-    rb.Push(ResultSuccess);
+                                                           FileSys::SaveDataSpaceId::Temporary);
-    rb.PushIpcInterface<ISaveDataInfoReader>(system, save_data_controller,
+
-                                             FileSys::SaveDataSpaceId::TemporaryStorage);
+    R_SUCCEED();
 }
 
-void FSP_SRV::WriteSaveDataFileSystemExtraDataBySaveDataAttribute(HLERequestContext& ctx) {
+Result FSP_SRV::WriteSaveDataFileSystemExtraDataBySaveDataAttribute() {
     LOG_WARNING(Service_FS, "(STUBBED) called.");
 
-    IPC::ResponseBuilder rb{ctx, 2};
+    R_SUCCEED();
-    rb.Push(ResultSuccess);
 }
 
-void FSP_SRV::ReadSaveDataFileSystemExtraDataWithMaskBySaveDataAttribute(HLERequestContext& ctx) {
+Result FSP_SRV::ReadSaveDataFileSystemExtraDataWithMaskBySaveDataAttribute(
-    IPC::RequestParser rp{ctx};
+    FileSys::SaveDataSpaceId space_id, FileSys::SaveDataAttribute attribute,
-
+    InBuffer<BufferAttr_HipcMapAlias> mask_buffer, OutBuffer<BufferAttr_HipcMapAlias> out_buffer) {
-    struct Parameters {
-        FileSys::SaveDataSpaceId space_id;
-        FileSys::SaveDataAttribute attribute;
-    };
-
-    const auto parameters = rp.PopRaw<Parameters>();
     // Stub this to None for now, backend needs an impl to read/write the SaveDataExtraData
-    constexpr auto flags = static_cast<u32>(FileSys::SaveDataFlags::None);
+    // In an earlier version of the code, this was returned as an out argument, but this is not
+    // correct
+    [[maybe_unused]] constexpr auto flags = static_cast<u32>(FileSys::SaveDataFlags::None);
 
     LOG_WARNING(Service_FS,
-                "(STUBBED) called, flags={}, space_id={}, attribute.title_id={:016X}\n"
+                "(STUBBED) called, flags={}, space_id={}, attribute.program_id={:016X}\n"
                 "attribute.user_id={:016X}{:016X}, attribute.save_id={:016X}\n"
                 "attribute.type={}, attribute.rank={}, attribute.index={}",
-                flags, parameters.space_id, parameters.attribute.title_id,
+                flags, space_id, attribute.program_id, attribute.user_id[1], attribute.user_id[0],
-                parameters.attribute.user_id[1], parameters.attribute.user_id[0],
+                attribute.system_save_data_id, attribute.type, attribute.rank, attribute.index);
-                parameters.attribute.save_id, parameters.attribute.type, parameters.attribute.rank,
-                parameters.attribute.index);
 
-    IPC::ResponseBuilder rb{ctx, 3};
+    R_SUCCEED();
-    rb.Push(ResultSuccess);
-    rb.Push(flags);
 }
 
-void FSP_SRV::OpenDataStorageByCurrentProcess(HLERequestContext& ctx) {
+Result FSP_SRV::OpenDataStorageByCurrentProcess(OutInterface<IStorage> out_interface) {
     LOG_DEBUG(Service_FS, "called");
 
     if (!romfs) {
         auto current_romfs = romfs_controller->OpenRomFSCurrentProcess();
         if (!current_romfs) {
             // TODO (bunnei): Find the right error code to use here
-            LOG_CRITICAL(Service_FS, "no file system interface available!");
+            LOG_CRITICAL(Service_FS, "No file system interface available!");
-            IPC::ResponseBuilder rb{ctx, 2};
+            R_RETURN(ResultUnknown);
-            rb.Push(ResultUnknown);
-            return;
         }
 
         romfs = current_romfs;
     }
 
-    auto storage = std::make_shared<IStorage>(system, romfs);
+    *out_interface = std::make_shared<IStorage>(system, romfs);
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    R_SUCCEED();
-    rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IStorage>(std::move(storage));
 }
 
-void FSP_SRV::OpenDataStorageByDataId(HLERequestContext& ctx) {
+Result FSP_SRV::OpenDataStorageByDataId(OutInterface<IStorage> out_interface,
-    IPC::RequestParser rp{ctx};
+                                        FileSys::StorageId storage_id, u32 unknown, u64 title_id) {
-    const auto storage_id = rp.PopRaw<FileSys::StorageId>();
-    const auto unknown = rp.PopRaw<u32>();
-    const auto title_id = rp.PopRaw<u64>();
-
     LOG_DEBUG(Service_FS, "called with storage_id={:02X}, unknown={:08X}, title_id={:016X}",
               storage_id, unknown, title_id);
 
@@ -592,19 +362,15 @@ void FSP_SRV::OpenDataStorageByDataId(HLERequestContext& ctx) {
         const auto archive = FileSys::SystemArchive::SynthesizeSystemArchive(title_id);
 
         if (archive != nullptr) {
-            IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+            *out_interface = std::make_shared<IStorage>(system, archive);
-            rb.Push(ResultSuccess);
+            R_SUCCEED();
-            rb.PushIpcInterface(std::make_shared<IStorage>(system, archive));
-            return;
         }
 
         // TODO(DarkLordZach): Find the right error code to use here
         LOG_ERROR(Service_FS,
-                  "could not open data storage with title_id={:016X}, storage_id={:02X}", title_id,
+                  "Could not open data storage with title_id={:016X}, storage_id={:02X}", title_id,
                   storage_id);
-        IPC::ResponseBuilder rb{ctx, 2};
+        R_RETURN(ResultUnknown);
-        rb.Push(ResultUnknown);
-        return;
     }
 
     const FileSys::PatchManager pm{title_id, fsc, content_provider};
@@ -614,28 +380,20 @@ void FSP_SRV::OpenDataStorageByDataId(HLERequestContext& ctx) {
     auto storage = std::make_shared<IStorage>(
         system, pm.PatchRomFS(base.get(), std::move(data), FileSys::ContentRecordType::Data));
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    *out_interface = std::move(storage);
-    rb.Push(ResultSuccess);
+    R_SUCCEED();
-    rb.PushIpcInterface<IStorage>(std::move(storage));
 }
 
-void FSP_SRV::OpenPatchDataStorageByCurrentProcess(HLERequestContext& ctx) {
+Result FSP_SRV::OpenPatchDataStorageByCurrentProcess(OutInterface<IStorage> out_interface,
-    IPC::RequestParser rp{ctx};
+                                                     FileSys::StorageId storage_id, u64 title_id) {
+    LOG_WARNING(Service_FS, "(STUBBED) called with storage_id={:02X}, title_id={:016X}", storage_id,
+                title_id);
 
-    const auto storage_id = rp.PopRaw<FileSys::StorageId>();
+    R_RETURN(FileSys::ResultTargetNotFound);
-    const auto title_id = rp.PopRaw<u64>();
-
-    LOG_DEBUG(Service_FS, "called with storage_id={:02X}, title_id={:016X}", storage_id, title_id);
-
-    IPC::ResponseBuilder rb{ctx, 2};
-    rb.Push(FileSys::ResultTargetNotFound);
 }
 
-void FSP_SRV::OpenDataStorageWithProgramIndex(HLERequestContext& ctx) {
+Result FSP_SRV::OpenDataStorageWithProgramIndex(OutInterface<IStorage> out_interface,
-    IPC::RequestParser rp{ctx};
+                                                u8 program_index) {
-
-    const auto program_index = rp.PopRaw<u8>();
-
     LOG_DEBUG(Service_FS, "called, program_index={}", program_index);
 
     auto patched_romfs = romfs_controller->OpenPatchedRomFSWithProgramIndex(
@@ -643,123 +401,80 @@ void FSP_SRV::OpenDataStorageWithProgramIndex(HLERequestContext& ctx) {
 
     if (!patched_romfs) {
         // TODO: Find the right error code to use here
-        LOG_ERROR(Service_FS, "could not open storage with program_index={}", program_index);
+        LOG_ERROR(Service_FS, "Could not open storage with program_index={}", program_index);
-
+        R_RETURN(ResultUnknown);
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultUnknown);
-        return;
     }
 
-    auto storage = std::make_shared<IStorage>(system, std::move(patched_romfs));
+    *out_interface = std::make_shared<IStorage>(system, std::move(patched_romfs));
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    R_SUCCEED();
-    rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IStorage>(std::move(storage));
 }
 
-void FSP_SRV::DisableAutoSaveDataCreation(HLERequestContext& ctx) {
+Result FSP_SRV::DisableAutoSaveDataCreation() {
     LOG_DEBUG(Service_FS, "called");
 
     save_data_controller->SetAutoCreate(false);
 
-    IPC::ResponseBuilder rb{ctx, 2};
+    R_SUCCEED();
-    rb.Push(ResultSuccess);
 }
 
-void FSP_SRV::SetGlobalAccessLogMode(HLERequestContext& ctx) {
+Result FSP_SRV::SetGlobalAccessLogMode(AccessLogMode access_log_mode_) {
-    IPC::RequestParser rp{ctx};
+    LOG_DEBUG(Service_FS, "called, access_log_mode={}", access_log_mode_);
-    access_log_mode = rp.PopEnum<AccessLogMode>();
 
-    LOG_DEBUG(Service_FS, "called, access_log_mode={}", access_log_mode);
+    access_log_mode = access_log_mode_;
 
-    IPC::ResponseBuilder rb{ctx, 2};
+    R_SUCCEED();
-    rb.Push(ResultSuccess);
 }
 
-void FSP_SRV::GetGlobalAccessLogMode(HLERequestContext& ctx) {
+Result FSP_SRV::GetGlobalAccessLogMode(Out<AccessLogMode> out_access_log_mode) {
     LOG_DEBUG(Service_FS, "called");
 
-    IPC::ResponseBuilder rb{ctx, 3};
+    *out_access_log_mode = access_log_mode;
-    rb.Push(ResultSuccess);
+
-    rb.PushEnum(access_log_mode);
+    R_SUCCEED();
 }
 
-void FSP_SRV::OutputAccessLogToSdCard(HLERequestContext& ctx) {
+Result FSP_SRV::OutputAccessLogToSdCard(InBuffer<BufferAttr_HipcMapAlias> log_message_buffer) {
-    const auto raw = ctx.ReadBufferCopy();
+    LOG_DEBUG(Service_FS, "called");
+
     auto log = Common::StringFromFixedZeroTerminatedBuffer(
-        reinterpret_cast<const char*>(raw.data()), raw.size());
+        reinterpret_cast<const char*>(log_message_buffer.data()), log_message_buffer.size());
-
-    LOG_DEBUG(Service_FS, "called");
-
     reporter.SaveFSAccessLog(log);
 
-    IPC::ResponseBuilder rb{ctx, 2};
+    R_SUCCEED();
-    rb.Push(ResultSuccess);
 }
 
-void FSP_SRV::GetProgramIndexForAccessLog(HLERequestContext& ctx) {
+Result FSP_SRV::GetProgramIndexForAccessLog(Out<AccessLogVersion> out_access_log_version,
-    LOG_DEBUG(Service_FS, "called");
+                                            Out<u32> out_access_log_program_index) {
-
-    IPC::ResponseBuilder rb{ctx, 4};
-    rb.Push(ResultSuccess);
-    rb.PushEnum(AccessLogVersion::Latest);
-    rb.Push(access_log_program_index);
-}
-
-void FSP_SRV::FlushAccessLogOnSdCard(HLERequestContext& ctx) {
     LOG_DEBUG(Service_FS, "(STUBBED) called");
 
-    IPC::ResponseBuilder rb{ctx, 2};
+    *out_access_log_version = AccessLogVersion::Latest;
-    rb.Push(ResultSuccess);
+    *out_access_log_program_index = access_log_program_index;
+
+    R_SUCCEED();
 }
 
-void FSP_SRV::GetCacheStorageSize(HLERequestContext& ctx) {
+Result FSP_SRV::FlushAccessLogOnSdCard() {
-    IPC::RequestParser rp{ctx};
+    LOG_DEBUG(Service_FS, "(STUBBED) called");
-    const auto index{rp.Pop<s32>()};
 
+    R_SUCCEED();
+}
+
+Result FSP_SRV::GetCacheStorageSize(s32 index, Out<s64> out_data_size, Out<s64> out_journal_size) {
     LOG_WARNING(Service_FS, "(STUBBED) called with index={}", index);
 
-    IPC::ResponseBuilder rb{ctx, 6};
+    *out_data_size = 0;
-    rb.Push(ResultSuccess);
+    *out_journal_size = 0;
-    rb.Push(s64{0});
+
-    rb.Push(s64{0});
+    R_SUCCEED();
 }
 
-class IMultiCommitManager final : public ServiceFramework<IMultiCommitManager> {
+Result FSP_SRV::OpenMultiCommitManager(OutInterface<IMultiCommitManager> out_interface) {
-public:
-    explicit IMultiCommitManager(Core::System& system_)
-        : ServiceFramework{system_, "IMultiCommitManager"} {
-        static const FunctionInfo functions[] = {
-            {1, &IMultiCommitManager::Add, "Add"},
-            {2, &IMultiCommitManager::Commit, "Commit"},
-        };
-        RegisterHandlers(functions);
-    }
-
-private:
-    FileSys::VirtualFile backend;
-
-    void Add(HLERequestContext& ctx) {
-        LOG_WARNING(Service_FS, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void Commit(HLERequestContext& ctx) {
-        LOG_WARNING(Service_FS, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-};
-
-void FSP_SRV::OpenMultiCommitManager(HLERequestContext& ctx) {
     LOG_DEBUG(Service_FS, "called");
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    *out_interface = std::make_shared<IMultiCommitManager>(system);
-    rb.Push(ResultSuccess);
+
-    rb.PushIpcInterface<IMultiCommitManager>(std::make_shared<IMultiCommitManager>(system));
+    R_SUCCEED();
 }
 
 } // namespace Service::FileSystem

src/core/hle/service/filesystem/fsp/fsp_srv.h

@@ -4,6 +4,9 @@
 #pragma once
 
 #include <memory>
+#include "core/file_sys/fs_save_data_types.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/filesystem/fsp/fsp_types.h"
 #include "core/hle/service/service.h"
 
 namespace Core {
@@ -20,6 +23,11 @@ namespace Service::FileSystem {
 class RomFsController;
 class SaveDataController;
 
+class IFileSystem;
+class ISaveDataInfoReader;
+class IStorage;
+class IMultiCommitManager;
+
 enum class AccessLogVersion : u32 {
     V7_0_0 = 2,
 
@@ -38,30 +46,46 @@ public:
     ~FSP_SRV() override;
 
 private:
-    void SetCurrentProcess(HLERequestContext& ctx);
+    Result SetCurrentProcess(ClientProcessId pid);
-    void OpenFileSystemWithPatch(HLERequestContext& ctx);
+    Result OpenFileSystemWithPatch(OutInterface<IFileSystem> out_interface,
-    void OpenSdCardFileSystem(HLERequestContext& ctx);
+                                   FileSystemProxyType type, u64 open_program_id);
-    void CreateSaveDataFileSystem(HLERequestContext& ctx);
+    Result OpenSdCardFileSystem(OutInterface<IFileSystem> out_interface);
-    void CreateSaveDataFileSystemBySystemSaveDataId(HLERequestContext& ctx);
+    Result CreateSaveDataFileSystem(FileSys::SaveDataCreationInfo save_create_struct,
-    void OpenSaveDataFileSystem(HLERequestContext& ctx);
+                                    FileSys::SaveDataAttribute save_struct, u128 uid);
-    void OpenSaveDataFileSystemBySystemSaveDataId(HLERequestContext& ctx);
+    Result CreateSaveDataFileSystemBySystemSaveDataId(
-    void OpenReadOnlySaveDataFileSystem(HLERequestContext& ctx);
+        FileSys::SaveDataCreationInfo save_create_struct, FileSys::SaveDataAttribute save_struct);
-    void OpenSaveDataInfoReaderBySaveDataSpaceId(HLERequestContext& ctx);
+    Result OpenSaveDataFileSystem(OutInterface<IFileSystem> out_interface,
-    void OpenSaveDataInfoReaderOnlyCacheStorage(HLERequestContext& ctx);
+                                  FileSys::SaveDataSpaceId space_id,
-    void WriteSaveDataFileSystemExtraDataBySaveDataAttribute(HLERequestContext& ctx);
+                                  FileSys::SaveDataAttribute attribute);
-    void ReadSaveDataFileSystemExtraDataWithMaskBySaveDataAttribute(HLERequestContext& ctx);
+    Result OpenSaveDataFileSystemBySystemSaveDataId(OutInterface<IFileSystem> out_interface,
-    void OpenDataStorageByCurrentProcess(HLERequestContext& ctx);
+                                                    FileSys::SaveDataSpaceId space_id,
-    void OpenDataStorageByDataId(HLERequestContext& ctx);
+                                                    FileSys::SaveDataAttribute attribute);
-    void OpenPatchDataStorageByCurrentProcess(HLERequestContext& ctx);
+    Result OpenReadOnlySaveDataFileSystem(OutInterface<IFileSystem> out_interface,
-    void OpenDataStorageWithProgramIndex(HLERequestContext& ctx);
+                                          FileSys::SaveDataSpaceId space_id,
-    void DisableAutoSaveDataCreation(HLERequestContext& ctx);
+                                          FileSys::SaveDataAttribute attribute);
-    void SetGlobalAccessLogMode(HLERequestContext& ctx);
+    Result OpenSaveDataInfoReaderBySaveDataSpaceId(OutInterface<ISaveDataInfoReader> out_interface,
-    void GetGlobalAccessLogMode(HLERequestContext& ctx);
+                                                   FileSys::SaveDataSpaceId space);
-    void OutputAccessLogToSdCard(HLERequestContext& ctx);
+    Result OpenSaveDataInfoReaderOnlyCacheStorage(OutInterface<ISaveDataInfoReader> out_interface);
-    void FlushAccessLogOnSdCard(HLERequestContext& ctx);
+    Result WriteSaveDataFileSystemExtraDataBySaveDataAttribute();
-    void GetProgramIndexForAccessLog(HLERequestContext& ctx);
+    Result ReadSaveDataFileSystemExtraDataWithMaskBySaveDataAttribute(
-    void OpenMultiCommitManager(HLERequestContext& ctx);
+        FileSys::SaveDataSpaceId space_id, FileSys::SaveDataAttribute attribute,
-    void GetCacheStorageSize(HLERequestContext& ctx);
+        InBuffer<BufferAttr_HipcMapAlias> mask_buffer,
+        OutBuffer<BufferAttr_HipcMapAlias> out_buffer);
+    Result OpenDataStorageByCurrentProcess(OutInterface<IStorage> out_interface);
+    Result OpenDataStorageByDataId(OutInterface<IStorage> out_interface,
+                                   FileSys::StorageId storage_id, u32 unknown, u64 title_id);
+    Result OpenPatchDataStorageByCurrentProcess(OutInterface<IStorage> out_interface,
+                                                FileSys::StorageId storage_id, u64 title_id);
+    Result OpenDataStorageWithProgramIndex(OutInterface<IStorage> out_interface, u8 program_index);
+    Result DisableAutoSaveDataCreation();
+    Result SetGlobalAccessLogMode(AccessLogMode access_log_mode_);
+    Result GetGlobalAccessLogMode(Out<AccessLogMode> out_access_log_mode);
+    Result OutputAccessLogToSdCard(InBuffer<BufferAttr_HipcMapAlias> log_message_buffer);
+    Result FlushAccessLogOnSdCard();
+    Result GetProgramIndexForAccessLog(Out<AccessLogVersion> out_access_log_version,
+                                       Out<u32> out_access_log_program_index);
+    Result OpenMultiCommitManager(OutInterface<IMultiCommitManager> out_interface);
+    Result GetCacheStorageSize(s32 index, Out<s64> out_data_size, Out<s64> out_journal_size);
 
     FileSystemController& fsc;
     const FileSys::ContentProvider& content_provider;

src/core/hle/service/filesystem/fsp/fsp_types.h

@@ -0,0 +1,34 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/filesystem/filesystem.h"
+
+namespace Service::FileSystem {
+
+enum class FileSystemProxyType : u8 {
+    Code = 0,
+    Rom = 1,
+    Logo = 2,
+    Control = 3,
+    Manual = 4,
+    Meta = 5,
+    Data = 6,
+    Package = 7,
+    RegisteredUpdate = 8,
+};
+
+struct SizeGetter {
+    std::function<u64()> get_free_size;
+    std::function<u64()> get_total_size;
+
+    static SizeGetter FromStorageId(const FileSystemController& fsc, FileSys::StorageId id) {
+        return {
+            [&fsc, id] { return fsc.GetFreeSpaceSize(id); },
+            [&fsc, id] { return fsc.GetTotalSpaceSize(id); },
+        };
+    }
+};
+
+} // namespace Service::FileSystem

src/core/hle/service/olsc/daemon_controller.cpp

@@ -0,0 +1,40 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/olsc/daemon_controller.h"
+
+namespace Service::OLSC {
+
+IDaemonController::IDaemonController(Core::System& system_)
+    : ServiceFramework{system_, "IDaemonController"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IDaemonController::GetAutoTransferEnabledForAccountAndApplication>, "GetAutoTransferEnabledForAccountAndApplication"},
+        {1, nullptr, "SetAutoTransferEnabledForAccountAndApplication"},
+        {2, nullptr, "GetGlobalUploadEnabledForAccount"},
+        {3, nullptr, "SetGlobalUploadEnabledForAccount"},
+        {4, nullptr, "TouchAccount"},
+        {5, nullptr, "GetGlobalDownloadEnabledForAccount"},
+        {6, nullptr, "SetGlobalDownloadEnabledForAccount"},
+        {10, nullptr, "GetForbiddenSaveDataIndication"},
+        {11, nullptr, "GetStopperObject"},
+        {12, nullptr, "GetState"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IDaemonController::~IDaemonController() = default;
+
+Result IDaemonController::GetAutoTransferEnabledForAccountAndApplication(Out<bool> out_is_enabled,
+                                                                         Common::UUID user_id,
+                                                                         u64 application_id) {
+    LOG_WARNING(Service_OLSC, "(STUBBED) called, user_id={} application_id={:016X}",
+                user_id.FormattedString(), application_id);
+    *out_is_enabled = false;
+    R_SUCCEED();
+}
+
+} // namespace Service::OLSC

src/core/hle/service/olsc/daemon_controller.h

@@ -0,0 +1,20 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/uuid.h"
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::OLSC {
+
+class IDaemonController final : public ServiceFramework<IDaemonController> {
+public:
+    explicit IDaemonController(Core::System& system_);
+    ~IDaemonController() override;
+
+private:
+    Result GetAutoTransferEnabledForAccountAndApplication(Out<bool> out_is_enabled,
+                                                          Common::UUID user_id, u64 application_id);
+};
+
+} // namespace Service::OLSC

src/core/hle/service/olsc/native_handle_holder.cpp

@@ -0,0 +1,28 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/olsc/native_handle_holder.h"
+
+namespace Service::OLSC {
+
+INativeHandleHolder::INativeHandleHolder(Core::System& system_)
+    : ServiceFramework{system_, "INativeHandleHolder"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&INativeHandleHolder::GetNativeHandle>, "GetNativeHandle"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+INativeHandleHolder::~INativeHandleHolder() = default;
+
+Result INativeHandleHolder::GetNativeHandle(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_WARNING(Service_OLSC, "(STUBBED) called");
+    *out_event = nullptr;
+    R_SUCCEED();
+}
+
+} // namespace Service::OLSC

src/core/hle/service/olsc/native_handle_holder.h

@@ -0,0 +1,22 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Kernel {
+class KReadableEvent;
+}
+
+namespace Service::OLSC {
+
+class INativeHandleHolder final : public ServiceFramework<INativeHandleHolder> {
+public:
+    explicit INativeHandleHolder(Core::System& system_);
+    ~INativeHandleHolder() override;
+
+private:
+    Result GetNativeHandle(OutCopyHandle<Kernel::KReadableEvent> out_event);
+};
+
+} // namespace Service::OLSC

src/core/hle/service/olsc/olsc.cpp

@@ -1,226 +1,27 @@
 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/olsc/olsc.h"
+#include "core/hle/service/olsc/olsc_service_for_application.h"
+#include "core/hle/service/olsc/olsc_service_for_system_service.h"
 #include "core/hle/service/server_manager.h"
 #include "core/hle/service/service.h"
 
 namespace Service::OLSC {
 
-class IOlscServiceForApplication final : public ServiceFramework<IOlscServiceForApplication> {
-public:
-    explicit IOlscServiceForApplication(Core::System& system_)
-        : ServiceFramework{system_, "olsc:u"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, &IOlscServiceForApplication::Initialize, "Initialize"},
-            {10, nullptr, "VerifySaveDataBackupLicenseAsync"},
-            {13, &IOlscServiceForApplication::GetSaveDataBackupSetting, "GetSaveDataBackupSetting"},
-            {14, &IOlscServiceForApplication::SetSaveDataBackupSettingEnabled, "SetSaveDataBackupSettingEnabled"},
-            {15, nullptr, "SetCustomData"},
-            {16, nullptr, "DeleteSaveDataBackupSetting"},
-            {18, nullptr, "GetSaveDataBackupInfoCache"},
-            {19, nullptr, "UpdateSaveDataBackupInfoCacheAsync"},
-            {22, nullptr, "DeleteSaveDataBackupAsync"},
-            {25, nullptr, "ListDownloadableSaveDataBackupInfoAsync"},
-            {26, nullptr, "DownloadSaveDataBackupAsync"},
-            {27, nullptr, "UploadSaveDataBackupAsync"},
-            {9010, nullptr, "VerifySaveDataBackupLicenseAsyncForDebug"},
-            {9013, nullptr, "GetSaveDataBackupSettingForDebug"},
-            {9014, nullptr, "SetSaveDataBackupSettingEnabledForDebug"},
-            {9015, nullptr, "SetCustomDataForDebug"},
-            {9016, nullptr, "DeleteSaveDataBackupSettingForDebug"},
-            {9018, nullptr, "GetSaveDataBackupInfoCacheForDebug"},
-            {9019, nullptr, "UpdateSaveDataBackupInfoCacheAsyncForDebug"},
-            {9022, nullptr, "DeleteSaveDataBackupAsyncForDebug"},
-            {9025, nullptr, "ListDownloadableSaveDataBackupInfoAsyncForDebug"},
-            {9026, nullptr, "DownloadSaveDataBackupAsyncForDebug"},
-        };
-        // clang-format on
-
-        RegisterHandlers(functions);
-    }
-
-private:
-    void Initialize(HLERequestContext& ctx) {
-        LOG_WARNING(Service_OLSC, "(STUBBED) called");
-
-        initialized = true;
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    void GetSaveDataBackupSetting(HLERequestContext& ctx) {
-        LOG_WARNING(Service_OLSC, "(STUBBED) called");
-
-        // backup_setting is set to 0 since real value is unknown
-        constexpr u64 backup_setting = 0;
-
-        IPC::ResponseBuilder rb{ctx, 4};
-        rb.Push(ResultSuccess);
-        rb.Push(backup_setting);
-    }
-
-    void SetSaveDataBackupSettingEnabled(HLERequestContext& ctx) {
-        LOG_WARNING(Service_OLSC, "(STUBBED) called");
-
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(ResultSuccess);
-    }
-
-    bool initialized{};
-};
-
-class INativeHandleHolder final : public ServiceFramework<INativeHandleHolder> {
-public:
-    explicit INativeHandleHolder(Core::System& system_)
-        : ServiceFramework{system_, "INativeHandleHolder"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, nullptr, "GetNativeHandle"},
-        };
-        // clang-format on
-
-        RegisterHandlers(functions);
-    }
-};
-
-class ITransferTaskListController final : public ServiceFramework<ITransferTaskListController> {
-public:
-    explicit ITransferTaskListController(Core::System& system_)
-        : ServiceFramework{system_, "ITransferTaskListController"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, nullptr, "Unknown0"},
-            {1, nullptr, "Unknown1"},
-            {2, nullptr, "Unknown2"},
-            {3, nullptr, "Unknown3"},
-            {4, nullptr, "Unknown4"},
-            {5, &ITransferTaskListController::GetNativeHandleHolder , "GetNativeHandleHolder"},
-            {6, nullptr, "Unknown6"},
-            {7, nullptr, "Unknown7"},
-            {8, nullptr, "GetRemoteStorageController"},
-            {9, &ITransferTaskListController::GetNativeHandleHolder, "GetNativeHandleHolder2"},
-            {10, nullptr, "Unknown10"},
-            {11, nullptr, "Unknown11"},
-            {12, nullptr, "Unknown12"},
-            {13, nullptr, "Unknown13"},
-            {14, nullptr, "Unknown14"},
-            {15, nullptr, "Unknown15"},
-            {16, nullptr, "Unknown16"},
-            {17, nullptr, "Unknown17"},
-            {18, nullptr, "Unknown18"},
-            {19, nullptr, "Unknown19"},
-            {20, nullptr, "Unknown20"},
-            {21, nullptr, "Unknown21"},
-            {22, nullptr, "Unknown22"},
-            {23, nullptr, "Unknown23"},
-            {24, nullptr, "Unknown24"},
-            {25, nullptr, "Unknown25"},
-        };
-        // clang-format on
-
-        RegisterHandlers(functions);
-    }
-
-private:
-    void GetNativeHandleHolder(HLERequestContext& ctx) {
-        LOG_INFO(Service_OLSC, "called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-        rb.Push(ResultSuccess);
-        rb.PushIpcInterface<INativeHandleHolder>(system);
-    }
-};
-
-class IOlscServiceForSystemService final : public ServiceFramework<IOlscServiceForSystemService> {
-public:
-    explicit IOlscServiceForSystemService(Core::System& system_)
-        : ServiceFramework{system_, "olsc:s"} {
-        // clang-format off
-        static const FunctionInfo functions[] = {
-            {0, &IOlscServiceForSystemService::OpenTransferTaskListController, "OpenTransferTaskListController"},
-            {1, nullptr, "OpenRemoteStorageController"},
-            {2, nullptr, "OpenDaemonController"},
-            {10, nullptr, "Unknown10"},
-            {11, nullptr, "Unknown11"},
-            {12, nullptr, "Unknown12"},
-            {13, nullptr, "Unknown13"},
-            {100, nullptr, "ListLastTransferTaskErrorInfo"},
-            {101, nullptr, "GetLastErrorInfoCount"},
-            {102, nullptr, "RemoveLastErrorInfoOld"},
-            {103, nullptr, "GetLastErrorInfo"},
-            {104, nullptr, "GetLastErrorEventHolder"},
-            {105, nullptr, "GetLastTransferTaskErrorInfo"},
-            {200, nullptr, "GetDataTransferPolicyInfo"},
-            {201, nullptr, "RemoveDataTransferPolicyInfo"},
-            {202, nullptr, "UpdateDataTransferPolicyOld"},
-            {203, nullptr, "UpdateDataTransferPolicy"},
-            {204, nullptr, "CleanupDataTransferPolicyInfo"},
-            {205, nullptr, "RequestDataTransferPolicy"},
-            {300, nullptr, "GetAutoTransferSeriesInfo"},
-            {301, nullptr, "UpdateAutoTransferSeriesInfo"},
-            {400, nullptr, "CleanupSaveDataArchiveInfoType1"},
-            {900, nullptr, "CleanupTransferTask"},
-            {902, nullptr, "CleanupSeriesInfoType0"},
-            {903, nullptr, "CleanupSaveDataArchiveInfoType0"},
-            {904, nullptr, "CleanupApplicationAutoTransferSetting"},
-            {905, nullptr, "CleanupErrorHistory"},
-            {906, nullptr, "SetLastError"},
-            {907, nullptr, "AddSaveDataArchiveInfoType0"},
-            {908, nullptr, "RemoveSeriesInfoType0"},
-            {909, nullptr, "GetSeriesInfoType0"},
-            {910, nullptr, "RemoveLastErrorInfo"},
-            {911, nullptr, "CleanupSeriesInfoType1"},
-            {912, nullptr, "RemoveSeriesInfoType1"},
-            {913, nullptr, "GetSeriesInfoType1"},
-            {1000, nullptr, "UpdateIssueOld"},
-            {1010, nullptr, "Unknown1010"},
-            {1011, nullptr, "ListIssueInfoOld"},
-            {1012, nullptr, "GetIssueOld"},
-            {1013, nullptr, "GetIssue2Old"},
-            {1014, nullptr, "GetIssue3Old"},
-            {1020, nullptr, "RepairIssueOld"},
-            {1021, nullptr, "RepairIssueWithUserIdOld"},
-            {1022, nullptr, "RepairIssue2Old"},
-            {1023, nullptr, "RepairIssue3Old"},
-            {1024, nullptr, "Unknown1024"},
-            {1100, nullptr, "UpdateIssue"},
-            {1110, nullptr, "Unknown1110"},
-            {1111, nullptr, "ListIssueInfo"},
-            {1112, nullptr, "GetIssue"},
-            {1113, nullptr, "GetIssue2"},
-            {1114, nullptr, "GetIssue3"},
-            {1120, nullptr, "RepairIssue"},
-            {1121, nullptr, "RepairIssueWithUserId"},
-            {1122, nullptr, "RepairIssue2"},
-            {1123, nullptr, "RepairIssue3"},
-            {1124, nullptr, "Unknown1124"},
-        };
-        // clang-format on
-
-        RegisterHandlers(functions);
-    }
-
-private:
-    void OpenTransferTaskListController(HLERequestContext& ctx) {
-        LOG_INFO(Service_OLSC, "called");
-
-        IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-        rb.Push(ResultSuccess);
-        rb.PushIpcInterface<ITransferTaskListController>(system);
-    }
-};
-
 void LoopProcess(Core::System& system) {
     auto server_manager = std::make_unique<ServerManager>(system);
 
-    server_manager->RegisterNamedService("olsc:u",
+    const auto OlscFactoryForApplication = [&] {
-                                         std::make_shared<IOlscServiceForApplication>(system));
+        return std::make_shared<IOlscServiceForApplication>(system);
-    server_manager->RegisterNamedService("olsc:s",
+    };
-                                         std::make_shared<IOlscServiceForSystemService>(system));
+
+    const auto OlscFactoryForSystemService = [&] {
+        return std::make_shared<IOlscServiceForSystemService>(system);
+    };
+
+    server_manager->RegisterNamedService("olsc:u", OlscFactoryForApplication);
+    server_manager->RegisterNamedService("olsc:s", OlscFactoryForSystemService);
 
     ServerManager::RunServer(std::move(server_manager));
 }

src/core/hle/service/olsc/olsc_service_for_application.cpp

@@ -0,0 +1,63 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/olsc/olsc_service_for_application.h"
+
+namespace Service::OLSC {
+
+IOlscServiceForApplication::IOlscServiceForApplication(Core::System& system_)
+    : ServiceFramework{system_, "olsc:u"} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, D<&IOlscServiceForApplication::Initialize>, "Initialize"},
+            {10, nullptr, "VerifySaveDataBackupLicenseAsync"},
+            {13, D<&IOlscServiceForApplication::GetSaveDataBackupSetting>, "GetSaveDataBackupSetting"},
+            {14, D<&IOlscServiceForApplication::SetSaveDataBackupSettingEnabled>, "SetSaveDataBackupSettingEnabled"},
+            {15, nullptr, "SetCustomData"},
+            {16, nullptr, "DeleteSaveDataBackupSetting"},
+            {18, nullptr, "GetSaveDataBackupInfoCache"},
+            {19, nullptr, "UpdateSaveDataBackupInfoCacheAsync"},
+            {22, nullptr, "DeleteSaveDataBackupAsync"},
+            {25, nullptr, "ListDownloadableSaveDataBackupInfoAsync"},
+            {26, nullptr, "DownloadSaveDataBackupAsync"},
+            {27, nullptr, "UploadSaveDataBackupAsync"},
+            {9010, nullptr, "VerifySaveDataBackupLicenseAsyncForDebug"},
+            {9013, nullptr, "GetSaveDataBackupSettingForDebug"},
+            {9014, nullptr, "SetSaveDataBackupSettingEnabledForDebug"},
+            {9015, nullptr, "SetCustomDataForDebug"},
+            {9016, nullptr, "DeleteSaveDataBackupSettingForDebug"},
+            {9018, nullptr, "GetSaveDataBackupInfoCacheForDebug"},
+            {9019, nullptr, "UpdateSaveDataBackupInfoCacheAsyncForDebug"},
+            {9022, nullptr, "DeleteSaveDataBackupAsyncForDebug"},
+            {9025, nullptr, "ListDownloadableSaveDataBackupInfoAsyncForDebug"},
+            {9026, nullptr, "DownloadSaveDataBackupAsyncForDebug"},
+        };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IOlscServiceForApplication::~IOlscServiceForApplication() = default;
+
+Result IOlscServiceForApplication::Initialize(ClientProcessId process_id) {
+    LOG_WARNING(Service_OLSC, "(STUBBED) called");
+    initialized = true;
+    R_SUCCEED();
+}
+
+Result IOlscServiceForApplication::GetSaveDataBackupSetting(Out<u8> out_save_data_backup_setting) {
+    LOG_WARNING(Service_OLSC, "(STUBBED) called");
+    // backup_setting is set to 0 since real value is unknown
+    *out_save_data_backup_setting = 0;
+    R_SUCCEED();
+}
+
+Result IOlscServiceForApplication::SetSaveDataBackupSettingEnabled(bool enabled,
+                                                                   NS::Uid account_id) {
+    LOG_WARNING(Service_OLSC, "(STUBBED) called, enabled={}, account_id={}", enabled,
+                account_id.uuid.FormattedString());
+    R_SUCCEED();
+}
+
+} // namespace Service::OLSC

src/core/hle/service/olsc/olsc_service_for_application.h

@@ -0,0 +1,23 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/ns/ns_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::OLSC {
+
+class IOlscServiceForApplication final : public ServiceFramework<IOlscServiceForApplication> {
+public:
+    explicit IOlscServiceForApplication(Core::System& system_);
+    ~IOlscServiceForApplication() override;
+
+private:
+    Result Initialize(ClientProcessId process_id);
+    Result GetSaveDataBackupSetting(Out<u8> out_save_data_backup_setting);
+    Result SetSaveDataBackupSettingEnabled(bool enabled, NS::Uid account_id);
+
+    bool initialized{};
+};
+
+} // namespace Service::OLSC

src/core/hle/service/olsc/olsc_service_for_system_service.cpp

@@ -0,0 +1,117 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/olsc/daemon_controller.h"
+#include "core/hle/service/olsc/olsc_service_for_system_service.h"
+#include "core/hle/service/olsc/remote_storage_controller.h"
+#include "core/hle/service/olsc/transfer_task_list_controller.h"
+
+namespace Service::OLSC {
+
+IOlscServiceForSystemService::IOlscServiceForSystemService(Core::System& system_)
+    : ServiceFramework{system_, "olsc:s"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IOlscServiceForSystemService::OpenTransferTaskListController>, "OpenTransferTaskListController"},
+        {1, D<&IOlscServiceForSystemService::OpenRemoteStorageController>, "OpenRemoteStorageController"},
+        {2, D<&IOlscServiceForSystemService::OpenDaemonController>, "OpenDaemonController"},
+        {10, nullptr, "Unknown10"},
+        {11, nullptr, "Unknown11"},
+        {12, nullptr, "Unknown12"},
+        {13, nullptr, "Unknown13"},
+        {100, nullptr, "ListLastTransferTaskErrorInfo"},
+        {101, nullptr, "GetLastErrorInfoCount"},
+        {102, nullptr, "RemoveLastErrorInfoOld"},
+        {103, nullptr, "GetLastErrorInfo"},
+        {104, nullptr, "GetLastErrorEventHolder"},
+        {105, nullptr, "GetLastTransferTaskErrorInfo"},
+        {200, D<&IOlscServiceForSystemService::GetDataTransferPolicyInfo>, "GetDataTransferPolicyInfo"},
+        {201, nullptr, "RemoveDataTransferPolicyInfo"},
+        {202, nullptr, "UpdateDataTransferPolicyOld"},
+        {203, nullptr, "UpdateDataTransferPolicy"},
+        {204, nullptr, "CleanupDataTransferPolicyInfo"},
+        {205, nullptr, "RequestDataTransferPolicy"},
+        {300, nullptr, "GetAutoTransferSeriesInfo"},
+        {301, nullptr, "UpdateAutoTransferSeriesInfo"},
+        {400, nullptr, "CleanupSaveDataArchiveInfoType1"},
+        {900, nullptr, "CleanupTransferTask"},
+        {902, nullptr, "CleanupSeriesInfoType0"},
+        {903, nullptr, "CleanupSaveDataArchiveInfoType0"},
+        {904, nullptr, "CleanupApplicationAutoTransferSetting"},
+        {905, nullptr, "CleanupErrorHistory"},
+        {906, nullptr, "SetLastError"},
+        {907, nullptr, "AddSaveDataArchiveInfoType0"},
+        {908, nullptr, "RemoveSeriesInfoType0"},
+        {909, nullptr, "GetSeriesInfoType0"},
+        {910, nullptr, "RemoveLastErrorInfo"},
+        {911, nullptr, "CleanupSeriesInfoType1"},
+        {912, nullptr, "RemoveSeriesInfoType1"},
+        {913, nullptr, "GetSeriesInfoType1"},
+        {1000, nullptr, "UpdateIssueOld"},
+        {1010, nullptr, "Unknown1010"},
+        {1011, nullptr, "ListIssueInfoOld"},
+        {1012, nullptr, "GetIssueOld"},
+        {1013, nullptr, "GetIssue2Old"},
+        {1014, nullptr, "GetIssue3Old"},
+        {1020, nullptr, "RepairIssueOld"},
+        {1021, nullptr, "RepairIssueWithUserIdOld"},
+        {1022, nullptr, "RepairIssue2Old"},
+        {1023, nullptr, "RepairIssue3Old"},
+        {1024, nullptr, "Unknown1024"},
+        {1100, nullptr, "UpdateIssue"},
+        {1110, nullptr, "Unknown1110"},
+        {1111, nullptr, "ListIssueInfo"},
+        {1112, nullptr, "GetIssue"},
+        {1113, nullptr, "GetIssue2"},
+        {1114, nullptr, "GetIssue3"},
+        {1120, nullptr, "RepairIssue"},
+        {1121, nullptr, "RepairIssueWithUserId"},
+        {1122, nullptr, "RepairIssue2"},
+        {1123, nullptr, "RepairIssue3"},
+        {1124, nullptr, "Unknown1124"},
+        {10000, D<&IOlscServiceForSystemService::CloneService>, "CloneService"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IOlscServiceForSystemService::~IOlscServiceForSystemService() = default;
+
+Result IOlscServiceForSystemService::OpenTransferTaskListController(
+    Out<SharedPointer<ITransferTaskListController>> out_interface) {
+    LOG_INFO(Service_OLSC, "called");
+    *out_interface = std::make_shared<ITransferTaskListController>(system);
+    R_SUCCEED();
+}
+
+Result IOlscServiceForSystemService::OpenRemoteStorageController(
+    Out<SharedPointer<IRemoteStorageController>> out_interface) {
+    LOG_INFO(Service_OLSC, "called");
+    *out_interface = std::make_shared<IRemoteStorageController>(system);
+    R_SUCCEED();
+}
+
+Result IOlscServiceForSystemService::OpenDaemonController(
+    Out<SharedPointer<IDaemonController>> out_interface) {
+    LOG_INFO(Service_OLSC, "called");
+    *out_interface = std::make_shared<IDaemonController>(system);
+    R_SUCCEED();
+}
+
+Result IOlscServiceForSystemService::GetDataTransferPolicyInfo(Out<u16> out_policy_info,
+                                                               u64 application_id) {
+    LOG_WARNING(Service_OLSC, "(STUBBED) called");
+    *out_policy_info = 0;
+    R_SUCCEED();
+}
+
+Result IOlscServiceForSystemService::CloneService(
+    Out<SharedPointer<IOlscServiceForSystemService>> out_interface) {
+    LOG_INFO(Service_OLSC, "called");
+    *out_interface = std::static_pointer_cast<IOlscServiceForSystemService>(shared_from_this());
+    R_SUCCEED();
+}
+
+} // namespace Service::OLSC

src/core/hle/service/olsc/olsc_service_for_system_service.h

@@ -0,0 +1,27 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::OLSC {
+
+class IDaemonController;
+class IRemoteStorageController;
+class ITransferTaskListController;
+
+class IOlscServiceForSystemService final : public ServiceFramework<IOlscServiceForSystemService> {
+public:
+    explicit IOlscServiceForSystemService(Core::System& system_);
+    ~IOlscServiceForSystemService() override;
+
+private:
+    Result OpenTransferTaskListController(
+        Out<SharedPointer<ITransferTaskListController>> out_interface);
+    Result OpenRemoteStorageController(Out<SharedPointer<IRemoteStorageController>> out_interface);
+    Result OpenDaemonController(Out<SharedPointer<IDaemonController>> out_interface);
+    Result GetDataTransferPolicyInfo(Out<u16> out_policy_info, u64 application_id);
+    Result CloneService(Out<SharedPointer<IOlscServiceForSystemService>> out_interface);
+};
+
+} // namespace Service::OLSC

src/core/hle/service/olsc/remote_storage_controller.cpp

@@ -0,0 +1,54 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/olsc/remote_storage_controller.h"
+
+namespace Service::OLSC {
+
+IRemoteStorageController::IRemoteStorageController(Core::System& system_)
+    : ServiceFramework{system_, "IRemoteStorageController"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "GetSaveDataArchiveInfoBySaveDataId"},
+        {1, nullptr, "GetSaveDataArchiveInfoByApplicationId"},
+        {3, nullptr, "GetSaveDataArchiveCount"},
+        {6, nullptr, "CleanupSaveDataArchives"},
+        {7, nullptr, "CreateSaveDataArchiveCacheUpdationTask"},
+        {8, nullptr, "CreateSaveDataArchiveCacheUpdationForSpecifiedApplicationTask"},
+        {9, nullptr, "Delete"},
+        {10, nullptr, "GetSeriesInfo"},
+        {11, nullptr, "CreateDeleteDataTask"},
+        {12, nullptr, "DeleteSeriesInfo"},
+        {13, nullptr, "CreateRegisterNotificationTokenTask"},
+        {14, nullptr, "UpdateSeriesInfo"},
+        {15, nullptr, "RegisterUploadSaveDataTransferTaskForAutonomyRegistration"},
+        {16, nullptr, "CreateCleanupToDeleteSaveDataArchiveInfoTask"},
+        {17, nullptr, "ListDataInfo"},
+        {18, nullptr, "GetDataInfo"},
+        {19, nullptr, "Unknown19"},
+        {20, nullptr, "CreateSaveDataArchiveInfoCacheForSaveDataBackupUpdationTask"},
+        {21, nullptr, "ListSecondarySaves"},
+        {22, D<&IRemoteStorageController::GetSecondarySave>, "GetSecondarySave"},
+        {23, nullptr, "TouchSecondarySave"},
+        {24, nullptr, "GetSecondarySaveDataInfo"},
+        {25, nullptr, "RegisterDownloadSaveDataTransferTaskForAutonomyRegistration"},
+        {900, nullptr, "Unknown900"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IRemoteStorageController::~IRemoteStorageController() = default;
+
+Result IRemoteStorageController::GetSecondarySave(Out<bool> out_has_secondary_save,
+                                                  Out<std::array<u64, 3>> out_unknown,
+                                                  u64 application_id) {
+    LOG_ERROR(Service_OLSC, "(STUBBED) called, application_id={:016X}", application_id);
+    *out_has_secondary_save = false;
+    *out_unknown = {};
+    R_SUCCEED();
+}
+
+} // namespace Service::OLSC

src/core/hle/service/olsc/remote_storage_controller.h

@@ -0,0 +1,19 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::OLSC {
+
+class IRemoteStorageController final : public ServiceFramework<IRemoteStorageController> {
+public:
+    explicit IRemoteStorageController(Core::System& system_);
+    ~IRemoteStorageController() override;
+
+private:
+    Result GetSecondarySave(Out<bool> out_has_secondary_save, Out<std::array<u64, 3>> out_unknown,
+                            u64 application_id);
+};
+
+} // namespace Service::OLSC

src/core/hle/service/olsc/transfer_task_list_controller.cpp

@@ -0,0 +1,55 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/olsc/native_handle_holder.h"
+#include "core/hle/service/olsc/transfer_task_list_controller.h"
+
+namespace Service::OLSC {
+
+ITransferTaskListController::ITransferTaskListController(Core::System& system_)
+    : ServiceFramework{system_, "ITransferTaskListController"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "Unknown0"},
+        {1, nullptr, "Unknown1"},
+        {2, nullptr, "Unknown2"},
+        {3, nullptr, "Unknown3"},
+        {4, nullptr, "Unknown4"},
+        {5, D<&ITransferTaskListController::GetNativeHandleHolder>, "GetNativeHandleHolder"},
+        {6, nullptr, "Unknown6"},
+        {7, nullptr, "Unknown7"},
+        {8, nullptr, "GetRemoteStorageController"},
+        {9, D<&ITransferTaskListController::GetNativeHandleHolder>, "GetNativeHandleHolder2"},
+        {10, nullptr, "Unknown10"},
+        {11, nullptr, "Unknown11"},
+        {12, nullptr, "Unknown12"},
+        {13, nullptr, "Unknown13"},
+        {14, nullptr, "Unknown14"},
+        {15, nullptr, "Unknown15"},
+        {16, nullptr, "Unknown16"},
+        {17, nullptr, "Unknown17"},
+        {18, nullptr, "Unknown18"},
+        {19, nullptr, "Unknown19"},
+        {20, nullptr, "Unknown20"},
+        {21, nullptr, "Unknown21"},
+        {22, nullptr, "Unknown22"},
+        {23, nullptr, "Unknown23"},
+        {24, nullptr, "Unknown24"},
+        {25, nullptr, "Unknown25"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+ITransferTaskListController::~ITransferTaskListController() = default;
+
+Result ITransferTaskListController::GetNativeHandleHolder(
+    Out<SharedPointer<INativeHandleHolder>> out_holder) {
+    LOG_WARNING(Service_OLSC, "(STUBBED) called");
+    *out_holder = std::make_shared<INativeHandleHolder>(system);
+    R_SUCCEED();
+}
+
+} // namespace Service::OLSC

src/core/hle/service/olsc/transfer_task_list_controller.h

@@ -0,0 +1,20 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::OLSC {
+
+class INativeHandleHolder;
+
+class ITransferTaskListController final : public ServiceFramework<ITransferTaskListController> {
+public:
+    explicit ITransferTaskListController(Core::System& system_);
+    ~ITransferTaskListController() override;
+
+private:
+    Result GetNativeHandleHolder(Out<SharedPointer<INativeHandleHolder>> out_holder);
+};
+
+} // namespace Service::OLSC

src/core/hle/service/pctl/parental_control_service.cpp

@@ -0,0 +1,434 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/file_sys/control_metadata.h"
+#include "core/file_sys/patch_manager.h"
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/pctl/parental_control_service.h"
+#include "core/hle/service/pctl/pctl_results.h"
+
+namespace Service::PCTL {
+
+IParentalControlService::IParentalControlService(Core::System& system_, Capability capability_)
+    : ServiceFramework{system_, "IParentalControlService"}, capability{capability_},
+      service_context{system_, "IParentalControlService"}, synchronization_event{service_context},
+      unlinked_event{service_context}, request_suspension_event{service_context} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {1, D<&IParentalControlService::Initialize>, "Initialize"},
+        {1001, D<&IParentalControlService::CheckFreeCommunicationPermission>, "CheckFreeCommunicationPermission"},
+        {1002, D<&IParentalControlService::ConfirmLaunchApplicationPermission>, "ConfirmLaunchApplicationPermission"},
+        {1003, D<&IParentalControlService::ConfirmResumeApplicationPermission>, "ConfirmResumeApplicationPermission"},
+        {1004, D<&IParentalControlService::ConfirmSnsPostPermission>, "ConfirmSnsPostPermission"},
+        {1005, nullptr, "ConfirmSystemSettingsPermission"},
+        {1006, D<&IParentalControlService::IsRestrictionTemporaryUnlocked>, "IsRestrictionTemporaryUnlocked"},
+        {1007, nullptr, "RevertRestrictionTemporaryUnlocked"},
+        {1008, nullptr, "EnterRestrictedSystemSettings"},
+        {1009, nullptr, "LeaveRestrictedSystemSettings"},
+        {1010, D<&IParentalControlService::IsRestrictedSystemSettingsEntered>, "IsRestrictedSystemSettingsEntered"},
+        {1011, nullptr, "RevertRestrictedSystemSettingsEntered"},
+        {1012, nullptr, "GetRestrictedFeatures"},
+        {1013, D<&IParentalControlService::ConfirmStereoVisionPermission>, "ConfirmStereoVisionPermission"},
+        {1014, nullptr, "ConfirmPlayableApplicationVideoOld"},
+        {1015, nullptr, "ConfirmPlayableApplicationVideo"},
+        {1016, nullptr, "ConfirmShowNewsPermission"},
+        {1017, D<&IParentalControlService::EndFreeCommunication>, "EndFreeCommunication"},
+        {1018, D<&IParentalControlService::IsFreeCommunicationAvailable>, "IsFreeCommunicationAvailable"},
+        {1031, D<&IParentalControlService::IsRestrictionEnabled>, "IsRestrictionEnabled"},
+        {1032, D<&IParentalControlService::GetSafetyLevel>, "GetSafetyLevel"},
+        {1033, nullptr, "SetSafetyLevel"},
+        {1034, nullptr, "GetSafetyLevelSettings"},
+        {1035, D<&IParentalControlService::GetCurrentSettings>, "GetCurrentSettings"},
+        {1036, nullptr, "SetCustomSafetyLevelSettings"},
+        {1037, nullptr, "GetDefaultRatingOrganization"},
+        {1038, nullptr, "SetDefaultRatingOrganization"},
+        {1039, D<&IParentalControlService::GetFreeCommunicationApplicationListCount>, "GetFreeCommunicationApplicationListCount"},
+        {1042, nullptr, "AddToFreeCommunicationApplicationList"},
+        {1043, nullptr, "DeleteSettings"},
+        {1044, nullptr, "GetFreeCommunicationApplicationList"},
+        {1045, nullptr, "UpdateFreeCommunicationApplicationList"},
+        {1046, nullptr, "DisableFeaturesForReset"},
+        {1047, nullptr, "NotifyApplicationDownloadStarted"},
+        {1048, nullptr, "NotifyNetworkProfileCreated"},
+        {1049, nullptr, "ResetFreeCommunicationApplicationList"},
+        {1061, D<&IParentalControlService::ConfirmStereoVisionRestrictionConfigurable>, "ConfirmStereoVisionRestrictionConfigurable"},
+        {1062, D<&IParentalControlService::GetStereoVisionRestriction>, "GetStereoVisionRestriction"},
+        {1063, D<&IParentalControlService::SetStereoVisionRestriction>, "SetStereoVisionRestriction"},
+        {1064, D<&IParentalControlService::ResetConfirmedStereoVisionPermission>, "ResetConfirmedStereoVisionPermission"},
+        {1065, D<&IParentalControlService::IsStereoVisionPermitted>, "IsStereoVisionPermitted"},
+        {1201, nullptr, "UnlockRestrictionTemporarily"},
+        {1202, nullptr, "UnlockSystemSettingsRestriction"},
+        {1203, nullptr, "SetPinCode"},
+        {1204, nullptr, "GenerateInquiryCode"},
+        {1205, nullptr, "CheckMasterKey"},
+        {1206, D<&IParentalControlService::GetPinCodeLength>, "GetPinCodeLength"},
+        {1207, nullptr, "GetPinCodeChangedEvent"},
+        {1208, nullptr, "GetPinCode"},
+        {1403, D<&IParentalControlService::IsPairingActive>, "IsPairingActive"},
+        {1406, nullptr, "GetSettingsLastUpdated"},
+        {1411, nullptr, "GetPairingAccountInfo"},
+        {1421, nullptr, "GetAccountNickname"},
+        {1424, nullptr, "GetAccountState"},
+        {1425, nullptr, "RequestPostEvents"},
+        {1426, nullptr, "GetPostEventInterval"},
+        {1427, nullptr, "SetPostEventInterval"},
+        {1432, D<&IParentalControlService::GetSynchronizationEvent>, "GetSynchronizationEvent"},
+        {1451, D<&IParentalControlService::StartPlayTimer>, "StartPlayTimer"},
+        {1452, D<&IParentalControlService::StopPlayTimer>, "StopPlayTimer"},
+        {1453, D<&IParentalControlService::IsPlayTimerEnabled>, "IsPlayTimerEnabled"},
+        {1454, nullptr, "GetPlayTimerRemainingTime"},
+        {1455, D<&IParentalControlService::IsRestrictedByPlayTimer>, "IsRestrictedByPlayTimer"},
+        {1456, D<&IParentalControlService::GetPlayTimerSettings>, "GetPlayTimerSettings"},
+        {1457, D<&IParentalControlService::GetPlayTimerEventToRequestSuspension>, "GetPlayTimerEventToRequestSuspension"},
+        {1458, D<&IParentalControlService::IsPlayTimerAlarmDisabled>, "IsPlayTimerAlarmDisabled"},
+        {1471, nullptr, "NotifyWrongPinCodeInputManyTimes"},
+        {1472, nullptr, "CancelNetworkRequest"},
+        {1473, D<&IParentalControlService::GetUnlinkedEvent>, "GetUnlinkedEvent"},
+        {1474, nullptr, "ClearUnlinkedEvent"},
+        {1601, nullptr, "DisableAllFeatures"},
+        {1602, nullptr, "PostEnableAllFeatures"},
+        {1603, nullptr, "IsAllFeaturesDisabled"},
+        {1901, nullptr, "DeleteFromFreeCommunicationApplicationListForDebug"},
+        {1902, nullptr, "ClearFreeCommunicationApplicationListForDebug"},
+        {1903, nullptr, "GetExemptApplicationListCountForDebug"},
+        {1904, nullptr, "GetExemptApplicationListForDebug"},
+        {1905, nullptr, "UpdateExemptApplicationListForDebug"},
+        {1906, nullptr, "AddToExemptApplicationListForDebug"},
+        {1907, nullptr, "DeleteFromExemptApplicationListForDebug"},
+        {1908, nullptr, "ClearExemptApplicationListForDebug"},
+        {1941, nullptr, "DeletePairing"},
+        {1951, nullptr, "SetPlayTimerSettingsForDebug"},
+        {1952, nullptr, "GetPlayTimerSpentTimeForTest"},
+        {1953, nullptr, "SetPlayTimerAlarmDisabledForDebug"},
+        {2001, nullptr, "RequestPairingAsync"},
+        {2002, nullptr, "FinishRequestPairing"},
+        {2003, nullptr, "AuthorizePairingAsync"},
+        {2004, nullptr, "FinishAuthorizePairing"},
+        {2005, nullptr, "RetrievePairingInfoAsync"},
+        {2006, nullptr, "FinishRetrievePairingInfo"},
+        {2007, nullptr, "UnlinkPairingAsync"},
+        {2008, nullptr, "FinishUnlinkPairing"},
+        {2009, nullptr, "GetAccountMiiImageAsync"},
+        {2010, nullptr, "FinishGetAccountMiiImage"},
+        {2011, nullptr, "GetAccountMiiImageContentTypeAsync"},
+        {2012, nullptr, "FinishGetAccountMiiImageContentType"},
+        {2013, nullptr, "SynchronizeParentalControlSettingsAsync"},
+        {2014, nullptr, "FinishSynchronizeParentalControlSettings"},
+        {2015, nullptr, "FinishSynchronizeParentalControlSettingsWithLastUpdated"},
+        {2016, nullptr, "RequestUpdateExemptionListAsync"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+IParentalControlService::~IParentalControlService() = default;
+
+bool IParentalControlService::CheckFreeCommunicationPermissionImpl() const {
+    if (states.temporary_unlocked) {
+        return true;
+    }
+    if ((states.application_info.parental_control_flag & 1) == 0) {
+        return true;
+    }
+    if (pin_code[0] == '\0') {
+        return true;
+    }
+    if (!settings.is_free_communication_default_on) {
+        return true;
+    }
+    // TODO(ogniK): Check for blacklisted/exempted applications. Return false can happen here
+    // but as we don't have multiproceses support yet, we can just assume our application is
+    // valid for the time being
+    return true;
+}
+
+bool IParentalControlService::ConfirmStereoVisionPermissionImpl() const {
+    if (states.temporary_unlocked) {
+        return true;
+    }
+    if (pin_code[0] == '\0') {
+        return true;
+    }
+    if (!settings.is_stero_vision_restricted) {
+        return false;
+    }
+    return true;
+}
+
+void IParentalControlService::SetStereoVisionRestrictionImpl(bool is_restricted) {
+    if (settings.disabled) {
+        return;
+    }
+
+    if (pin_code[0] == '\0') {
+        return;
+    }
+    settings.is_stero_vision_restricted = is_restricted;
+}
+
+Result IParentalControlService::Initialize() {
+    LOG_DEBUG(Service_PCTL, "called");
+
+    if (False(capability & (Capability::Application | Capability::System))) {
+        LOG_ERROR(Service_PCTL, "Invalid capability! capability={:X}", capability);
+        R_THROW(PCTL::ResultNoCapability);
+    }
+
+    // TODO(ogniK): Recovery flag initialization for pctl:r
+
+    const auto program_id = system.GetApplicationProcessProgramID();
+    if (program_id != 0) {
+        const FileSys::PatchManager pm{program_id, system.GetFileSystemController(),
+                                       system.GetContentProvider()};
+        const auto control = pm.GetControlMetadata();
+        if (control.first) {
+            states.tid_from_event = 0;
+            states.launch_time_valid = false;
+            states.is_suspended = false;
+            states.free_communication = false;
+            states.stereo_vision = false;
+            states.application_info = ApplicationInfo{
+                .application_id = program_id,
+                .age_rating = control.first->GetRatingAge(),
+                .parental_control_flag = control.first->GetParentalControlFlag(),
+                .capability = capability,
+            };
+
+            if (False(capability & (Capability::System | Capability::Recovery))) {
+                // TODO(ogniK): Signal application launch event
+            }
+        }
+    }
+
+    R_SUCCEED();
+}
+
+Result IParentalControlService::CheckFreeCommunicationPermission() {
+    LOG_DEBUG(Service_PCTL, "called");
+
+    if (!CheckFreeCommunicationPermissionImpl()) {
+        R_THROW(PCTL::ResultNoFreeCommunication);
+    } else {
+        states.free_communication = true;
+        R_SUCCEED();
+    }
+}
+
+Result IParentalControlService::ConfirmLaunchApplicationPermission(
+    InBuffer<BufferAttr_HipcPointer> restriction_bitset, u64 nacp_flag, u64 application_id) {
+    LOG_WARNING(Service_PCTL, "(STUBBED) called, nacp_flag={:#x} application_id={:016X}", nacp_flag,
+                application_id);
+    R_SUCCEED();
+}
+
+Result IParentalControlService::ConfirmResumeApplicationPermission(
+    InBuffer<BufferAttr_HipcPointer> restriction_bitset, u64 nacp_flag, u64 application_id) {
+    LOG_WARNING(Service_PCTL, "(STUBBED) called, nacp_flag={:#x} application_id={:016X}", nacp_flag,
+                application_id);
+    R_SUCCEED();
+}
+
+Result IParentalControlService::ConfirmSnsPostPermission() {
+    LOG_WARNING(Service_PCTL, "(STUBBED) called");
+    R_THROW(PCTL::ResultNoFreeCommunication);
+}
+
+Result IParentalControlService::IsRestrictionTemporaryUnlocked(
+    Out<bool> out_is_temporary_unlocked) {
+    *out_is_temporary_unlocked = false;
+    LOG_WARNING(Service_PCTL, "(STUBBED) called, is_temporary_unlocked={}",
+                *out_is_temporary_unlocked);
+    R_SUCCEED();
+}
+
+Result IParentalControlService::IsRestrictedSystemSettingsEntered(
+    Out<bool> out_is_restricted_system_settings_entered) {
+    *out_is_restricted_system_settings_entered = false;
+    LOG_WARNING(Service_PCTL, "(STUBBED) called, is_temporary_unlocked={}",
+                *out_is_restricted_system_settings_entered);
+    R_SUCCEED();
+}
+
+Result IParentalControlService::ConfirmStereoVisionPermission() {
+    LOG_DEBUG(Service_PCTL, "called");
+    states.stereo_vision = true;
+    R_SUCCEED();
+}
+
+Result IParentalControlService::EndFreeCommunication() {
+    LOG_WARNING(Service_PCTL, "(STUBBED) called");
+    R_SUCCEED();
+}
+
+Result IParentalControlService::IsFreeCommunicationAvailable() {
+    LOG_WARNING(Service_PCTL, "(STUBBED) called");
+
+    if (!CheckFreeCommunicationPermissionImpl()) {
+        R_THROW(PCTL::ResultNoFreeCommunication);
+    } else {
+        R_SUCCEED();
+    }
+}
+
+Result IParentalControlService::IsRestrictionEnabled(Out<bool> out_restriction_enabled) {
+    LOG_DEBUG(Service_PCTL, "called");
+
+    if (False(capability & (Capability::Status | Capability::Recovery))) {
+        LOG_ERROR(Service_PCTL, "Application does not have Status or Recovery capabilities!");
+        *out_restriction_enabled = false;
+        R_THROW(PCTL::ResultNoCapability);
+    }
+
+    *out_restriction_enabled = pin_code[0] != '\0';
+    R_SUCCEED();
+}
+
+Result IParentalControlService::GetSafetyLevel(Out<u32> out_safety_level) {
+    *out_safety_level = 0;
+    LOG_WARNING(Service_PCTL, "(STUBBED) called, safety_level={}", *out_safety_level);
+    R_SUCCEED();
+}
+
+Result IParentalControlService::GetCurrentSettings(Out<RestrictionSettings> out_settings) {
+    LOG_INFO(Service_PCTL, "called");
+    *out_settings = restriction_settings;
+    R_SUCCEED();
+}
+
+Result IParentalControlService::GetFreeCommunicationApplicationListCount(Out<s32> out_count) {
+    *out_count = 4;
+    LOG_WARNING(Service_PCTL, "(STUBBED) called, count={}", *out_count);
+    R_SUCCEED();
+}
+
+Result IParentalControlService::ConfirmStereoVisionRestrictionConfigurable() {
+    LOG_DEBUG(Service_PCTL, "called");
+
+    if (False(capability & Capability::StereoVision)) {
+        LOG_ERROR(Service_PCTL, "Application does not have StereoVision capability!");
+        R_THROW(PCTL::ResultNoCapability);
+    }
+
+    if (pin_code[0] == '\0') {
+        R_THROW(PCTL::ResultNoRestrictionEnabled);
+    }
+
+    R_SUCCEED();
+}
+
+Result IParentalControlService::IsStereoVisionPermitted(Out<bool> out_is_permitted) {
+    LOG_DEBUG(Service_PCTL, "called");
+
+    if (!ConfirmStereoVisionPermissionImpl()) {
+        *out_is_permitted = false;
+        R_THROW(PCTL::ResultStereoVisionRestricted);
+    } else {
+        *out_is_permitted = true;
+        R_SUCCEED();
+    }
+}
+
+Result IParentalControlService::GetPinCodeLength(Out<s32> out_length) {
+    *out_length = 0;
+    LOG_WARNING(Service_PCTL, "(STUBBED) called, length={}", *out_length);
+    R_SUCCEED();
+}
+
+Result IParentalControlService::IsPairingActive(Out<bool> out_is_pairing_active) {
+    *out_is_pairing_active = false;
+    LOG_WARNING(Service_PCTL, "(STUBBED) called, is_pairing_active={}", *out_is_pairing_active);
+    R_SUCCEED();
+}
+
+Result IParentalControlService::GetSynchronizationEvent(
+    OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_INFO(Service_PCTL, "called");
+    *out_event = synchronization_event.GetHandle();
+    R_SUCCEED();
+}
+
+Result IParentalControlService::StartPlayTimer() {
+    LOG_WARNING(Service_PCTL, "(STUBBED) called");
+    R_SUCCEED();
+}
+
+Result IParentalControlService::StopPlayTimer() {
+    LOG_WARNING(Service_PCTL, "(STUBBED) called");
+    R_SUCCEED();
+}
+
+Result IParentalControlService::IsPlayTimerEnabled(Out<bool> out_is_play_timer_enabled) {
+    *out_is_play_timer_enabled = false;
+    LOG_WARNING(Service_PCTL, "(STUBBED) called, enabled={}", *out_is_play_timer_enabled);
+    R_SUCCEED();
+}
+
+Result IParentalControlService::IsRestrictedByPlayTimer(Out<bool> out_is_restricted_by_play_timer) {
+    *out_is_restricted_by_play_timer = false;
+    LOG_WARNING(Service_PCTL, "(STUBBED) called, restricted={}", *out_is_restricted_by_play_timer);
+    R_SUCCEED();
+}
+
+Result IParentalControlService::GetPlayTimerSettings(
+    Out<PlayTimerSettings> out_play_timer_settings) {
+    LOG_WARNING(Service_PCTL, "(STUBBED) called");
+    *out_play_timer_settings = {};
+    R_SUCCEED();
+}
+
+Result IParentalControlService::GetPlayTimerEventToRequestSuspension(
+    OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_INFO(Service_PCTL, "called");
+    *out_event = request_suspension_event.GetHandle();
+    R_SUCCEED();
+}
+
+Result IParentalControlService::IsPlayTimerAlarmDisabled(Out<bool> out_play_timer_alarm_disabled) {
+    *out_play_timer_alarm_disabled = false;
+    LOG_INFO(Service_PCTL, "called, is_play_timer_alarm_disabled={}",
+             *out_play_timer_alarm_disabled);
+    R_SUCCEED();
+}
+
+Result IParentalControlService::GetUnlinkedEvent(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_INFO(Service_PCTL, "called");
+    *out_event = unlinked_event.GetHandle();
+    R_SUCCEED();
+}
+
+Result IParentalControlService::GetStereoVisionRestriction(
+    Out<bool> out_stereo_vision_restriction) {
+    LOG_DEBUG(Service_PCTL, "called");
+
+    if (False(capability & Capability::StereoVision)) {
+        LOG_ERROR(Service_PCTL, "Application does not have StereoVision capability!");
+        *out_stereo_vision_restriction = false;
+        R_THROW(PCTL::ResultNoCapability);
+    }
+
+    *out_stereo_vision_restriction = settings.is_stero_vision_restricted;
+    R_SUCCEED();
+}
+
+Result IParentalControlService::SetStereoVisionRestriction(bool stereo_vision_restriction) {
+    LOG_DEBUG(Service_PCTL, "called, can_use={}", stereo_vision_restriction);
+
+    if (False(capability & Capability::StereoVision)) {
+        LOG_ERROR(Service_PCTL, "Application does not have StereoVision capability!");
+        R_THROW(PCTL::ResultNoCapability);
+    }
+
+    SetStereoVisionRestrictionImpl(stereo_vision_restriction);
+    R_SUCCEED();
+}
+
+Result IParentalControlService::ResetConfirmedStereoVisionPermission() {
+    LOG_DEBUG(Service_PCTL, "called");
+
+    states.stereo_vision = false;
+
+    R_SUCCEED();
+}
+
+} // namespace Service::PCTL

src/core/hle/service/pctl/parental_control_service.h

@@ -0,0 +1,86 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/os/event.h"
+#include "core/hle/service/pctl/pctl_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::PCTL {
+
+class IParentalControlService final : public ServiceFramework<IParentalControlService> {
+public:
+    explicit IParentalControlService(Core::System& system_, Capability capability_);
+    ~IParentalControlService() override;
+
+private:
+    bool CheckFreeCommunicationPermissionImpl() const;
+    bool ConfirmStereoVisionPermissionImpl() const;
+    void SetStereoVisionRestrictionImpl(bool is_restricted);
+
+    Result Initialize();
+    Result CheckFreeCommunicationPermission();
+    Result ConfirmLaunchApplicationPermission(InBuffer<BufferAttr_HipcPointer> restriction_bitset,
+                                              u64 nacp_flag, u64 application_id);
+    Result ConfirmResumeApplicationPermission(InBuffer<BufferAttr_HipcPointer> restriction_bitset,
+                                              u64 nacp_flag, u64 application_id);
+    Result ConfirmSnsPostPermission();
+    Result IsRestrictionTemporaryUnlocked(Out<bool> out_is_temporary_unlocked);
+    Result IsRestrictedSystemSettingsEntered(Out<bool> out_is_restricted_system_settings_entered);
+    Result ConfirmStereoVisionPermission();
+    Result EndFreeCommunication();
+    Result IsFreeCommunicationAvailable();
+    Result IsRestrictionEnabled(Out<bool> out_restriction_enabled);
+    Result GetSafetyLevel(Out<u32> out_safety_level);
+    Result GetCurrentSettings(Out<RestrictionSettings> out_settings);
+    Result GetFreeCommunicationApplicationListCount(Out<s32> out_count);
+    Result ConfirmStereoVisionRestrictionConfigurable();
+    Result IsStereoVisionPermitted(Out<bool> out_is_permitted);
+    Result GetPinCodeLength(Out<s32> out_length);
+    Result IsPairingActive(Out<bool> out_is_pairing_active);
+    Result GetSynchronizationEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result StartPlayTimer();
+    Result StopPlayTimer();
+    Result IsPlayTimerEnabled(Out<bool> out_is_play_timer_enabled);
+    Result IsRestrictedByPlayTimer(Out<bool> out_is_restricted_by_play_timer);
+    Result GetPlayTimerSettings(Out<PlayTimerSettings> out_play_timer_settings);
+    Result GetPlayTimerEventToRequestSuspension(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result IsPlayTimerAlarmDisabled(Out<bool> out_play_timer_alarm_disabled);
+    Result GetUnlinkedEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+    Result GetStereoVisionRestriction(Out<bool> out_stereo_vision_restriction);
+    Result SetStereoVisionRestriction(bool stereo_vision_restriction);
+    Result ResetConfirmedStereoVisionPermission();
+
+    struct States {
+        u64 current_tid{};
+        ApplicationInfo application_info{};
+        u64 tid_from_event{};
+        bool launch_time_valid{};
+        bool is_suspended{};
+        bool temporary_unlocked{};
+        bool free_communication{};
+        bool stereo_vision{};
+    };
+
+    struct ParentalControlSettings {
+        bool is_stero_vision_restricted{};
+        bool is_free_communication_default_on{};
+        bool disabled{};
+    };
+
+    States states{};
+    ParentalControlSettings settings{};
+    RestrictionSettings restriction_settings{};
+    std::array<char, 8> pin_code{};
+    Capability capability{};
+
+    KernelHelpers::ServiceContext service_context;
+    Event synchronization_event;
+    Event unlinked_event;
+    Event request_suspension_event;
+};
+
+} // namespace Service::PCTL

src/core/hle/service/pctl/parental_control_service_factory.cpp

@@ -0,0 +1,40 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/pctl/parental_control_service.h"
+#include "core/hle/service/pctl/parental_control_service_factory.h"
+
+namespace Service::PCTL {
+
+IParentalControlServiceFactory::IParentalControlServiceFactory(Core::System& system_,
+                                                               const char* name_,
+                                                               Capability capability_)
+    : ServiceFramework{system_, name_}, capability{capability_} {
+    static const FunctionInfo functions[] = {
+        {0, D<&IParentalControlServiceFactory::CreateService>, "CreateService"},
+        {1, D<&IParentalControlServiceFactory::CreateServiceWithoutInitialize>,
+         "CreateServiceWithoutInitialize"},
+    };
+    RegisterHandlers(functions);
+}
+
+IParentalControlServiceFactory::~IParentalControlServiceFactory() = default;
+
+Result IParentalControlServiceFactory::CreateService(
+    Out<SharedPointer<IParentalControlService>> out_service, ClientProcessId process_id) {
+    LOG_DEBUG(Service_PCTL, "called");
+    // TODO(ogniK): Get application id from process
+    *out_service = std::make_shared<IParentalControlService>(system, capability);
+    R_SUCCEED();
+}
+
+Result IParentalControlServiceFactory::CreateServiceWithoutInitialize(
+    Out<SharedPointer<IParentalControlService>> out_service, ClientProcessId process_id) {
+    LOG_DEBUG(Service_PCTL, "called");
+    // TODO(ogniK): Get application id from process
+    *out_service = std::make_shared<IParentalControlService>(system, capability);
+    R_SUCCEED();
+}
+
+} // namespace Service::PCTL

src/core/hle/service/pctl/parental_control_service_factory.h

@@ -0,0 +1,31 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/pctl/pctl_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::PCTL {
+
+class IParentalControlService;
+
+class IParentalControlServiceFactory : public ServiceFramework<IParentalControlServiceFactory> {
+public:
+    explicit IParentalControlServiceFactory(Core::System& system_, const char* name_,
+                                            Capability capability_);
+    ~IParentalControlServiceFactory() override;
+
+    Result CreateService(Out<SharedPointer<IParentalControlService>> out_service,
+                         ClientProcessId process_id);
+    Result CreateServiceWithoutInitialize(Out<SharedPointer<IParentalControlService>> out_service,
+                                          ClientProcessId process_id);
+
+private:
+    Capability capability{};
+};
+
+void LoopProcess(Core::System& system);
+
+} // namespace Service::PCTL

src/core/hle/service/pctl/pctl.cpp

@@ -1,19 +1,28 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include "core/hle/service/pctl/parental_control_service_factory.h"
 #include "core/hle/service/pctl/pctl.h"
+#include "core/hle/service/server_manager.h"
 
 namespace Service::PCTL {
 
-PCTL::PCTL(Core::System& system_, std::shared_ptr<Module> module_, const char* name,
+void LoopProcess(Core::System& system) {
-           Capability capability_)
+    auto server_manager = std::make_unique<ServerManager>(system);
-    : Interface{system_, std::move(module_), name, capability_} {
+
-    static const FunctionInfo functions[] = {
+    server_manager->RegisterNamedService("pctl",
-        {0, &PCTL::CreateService, "CreateService"},
+                                         std::make_shared<IParentalControlServiceFactory>(
-        {1, &PCTL::CreateServiceWithoutInitialize, "CreateServiceWithoutInitialize"},
+                                             system, "pctl",
-    };
+                                             Capability::Application | Capability::SnsPost |
-    RegisterHandlers(functions);
+                                                 Capability::Status | Capability::StereoVision));
+    // TODO(ogniK): Implement remaining capabilities
+    server_manager->RegisterNamedService("pctl:a", std::make_shared<IParentalControlServiceFactory>(
+                                                       system, "pctl:a", Capability::None));
+    server_manager->RegisterNamedService("pctl:r", std::make_shared<IParentalControlServiceFactory>(
+                                                       system, "pctl:r", Capability::None));
+    server_manager->RegisterNamedService("pctl:s", std::make_shared<IParentalControlServiceFactory>(
+                                                       system, "pctl:s", Capability::None));
+    ServerManager::RunServer(std::move(server_manager));
 }
 
-PCTL::~PCTL() = default;
 } // namespace Service::PCTL

src/core/hle/service/pctl/pctl.h

@@ -3,19 +3,12 @@
 
 #pragma once
 
-#include "core/hle/service/pctl/pctl_module.h"
-
 namespace Core {
 class System;
 }
 
 namespace Service::PCTL {
 
-class PCTL final : public Module::Interface {
+void LoopProcess(Core::System& system);
-public:
-    explicit PCTL(Core::System& system_, std::shared_ptr<Module> module_, const char* name,
-                  Capability capability_);
-    ~PCTL() override;
-};
 
 } // namespace Service::PCTL

src/core/hle/service/pctl/pctl_results.h

@@ -0,0 +1,15 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+
+namespace Service::PCTL {
+
+constexpr Result ResultNoFreeCommunication{ErrorModule::PCTL, 101};
+constexpr Result ResultStereoVisionRestricted{ErrorModule::PCTL, 104};
+constexpr Result ResultNoCapability{ErrorModule::PCTL, 131};
+constexpr Result ResultNoRestrictionEnabled{ErrorModule::PCTL, 181};
+
+} // namespace Service::PCTL

src/core/hle/service/pctl/pctl_types.h

@@ -0,0 +1,43 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_funcs.h"
+
+namespace Service::PCTL {
+
+enum class Capability : u32 {
+    None = 0,
+    Application = 1 << 0,
+    SnsPost = 1 << 1,
+    Recovery = 1 << 6,
+    Status = 1 << 8,
+    StereoVision = 1 << 9,
+    System = 1 << 15,
+};
+DECLARE_ENUM_FLAG_OPERATORS(Capability);
+
+struct ApplicationInfo {
+    u64 application_id{};
+    std::array<u8, 32> age_rating{};
+    u32 parental_control_flag{};
+    Capability capability{};
+};
+static_assert(sizeof(ApplicationInfo) == 0x30, "ApplicationInfo has incorrect size.");
+
+// This is nn::pctl::RestrictionSettings
+struct RestrictionSettings {
+    u8 rating_age;
+    bool sns_post_restriction;
+    bool free_communication_restriction;
+};
+static_assert(sizeof(RestrictionSettings) == 0x3, "RestrictionSettings has incorrect size.");
+
+// This is nn::pctl::PlayTimerSettings
+struct PlayTimerSettings {
+    std::array<u32, 13> settings;
+};
+static_assert(sizeof(PlayTimerSettings) == 0x34, "PlayTimerSettings has incorrect size.");
+
+} // namespace Service::PCTL

src/core/hle/service/psc/ovln/ovln_types.h

@@ -0,0 +1,21 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/bit_field.h"
+#include "common/common_types.h"
+
+namespace Service::PSC {
+
+using OverlayNotification = std::array<u64, 0x10>;
+static_assert(sizeof(OverlayNotification) == 0x80, "OverlayNotification has incorrect size");
+
+union MessageFlags {
+    u64 raw;
+    BitField<0, 8, u64> message_type;
+    BitField<8, 8, u64> queue_type;
+};
+static_assert(sizeof(MessageFlags) == 0x8, "MessageFlags has incorrect size");
+
+} // namespace Service::PSC

src/core/hle/service/psc/ovln/receiver.cpp

@@ -0,0 +1,24 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/ovln/receiver.h"
+
+namespace Service::PSC {
+
+IReceiver::IReceiver(Core::System& system_) : ServiceFramework{system_, "IReceiver"} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "AddSource"},
+            {1, nullptr, "RemoveSource"},
+            {2, nullptr, "GetReceiveEventHandle"},
+            {3, nullptr, "Receive"},
+            {4, nullptr, "ReceiveWithTick"},
+        };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IReceiver::~IReceiver() = default;
+
+} // namespace Service::PSC

src/core/hle/service/psc/ovln/receiver.h

@@ -0,0 +1,16 @@
+// 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::PSC {
+
+class IReceiver final : public ServiceFramework<IReceiver> {
+public:
+    explicit IReceiver(Core::System& system_);
+    ~IReceiver() override;
+};
+
+} // namespace Service::PSC

src/core/hle/service/psc/ovln/receiver_service.cpp

@@ -0,0 +1,28 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/psc/ovln/receiver.h"
+#include "core/hle/service/psc/ovln/receiver_service.h"
+
+namespace Service::PSC {
+
+IReceiverService::IReceiverService(Core::System& system_) : ServiceFramework{system_, "ovln:rcv"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IReceiverService::OpenReceiver>, "OpenReceiver"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IReceiverService::~IReceiverService() = default;
+
+Result IReceiverService::OpenReceiver(Out<SharedPointer<IReceiver>> out_receiver) {
+    LOG_DEBUG(Service_PSC, "called");
+    *out_receiver = std::make_shared<IReceiver>(system);
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC

src/core/hle/service/psc/ovln/receiver_service.h

@@ -0,0 +1,22 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::PSC {
+
+class IReceiver;
+
+class IReceiverService final : public ServiceFramework<IReceiverService> {
+public:
+    explicit IReceiverService(Core::System& system_);
+    ~IReceiverService() override;
+
+private:
+    Result OpenReceiver(Out<SharedPointer<IReceiver>> out_receiver);
+};
+
+} // namespace Service::PSC

src/core/hle/service/psc/ovln/sender.cpp

@@ -0,0 +1,32 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/psc/ovln/sender.h"
+
+namespace Service::PSC {
+
+ISender::ISender(Core::System& system_) : ServiceFramework{system_, "ISender"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&ISender::Send>, "Send"},
+        {1, nullptr, "GetUnreceivedMessageCount"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+ISender::~ISender() = default;
+
+Result ISender::Send(const OverlayNotification& notification, MessageFlags flags) {
+    std::string data;
+    for (const auto m : notification) {
+        data += fmt::format("{:016X} ", m);
+    }
+
+    LOG_WARNING(Service_PSC, "(STUBBED) called, flags={} notification={}", flags.raw, data);
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC

src/core/hle/service/psc/ovln/sender.h

@@ -0,0 +1,21 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/psc/ovln/ovln_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::PSC {
+
+class ISender final : public ServiceFramework<ISender> {
+public:
+    explicit ISender(Core::System& system_);
+    ~ISender() override;
+
+private:
+    Result Send(const OverlayNotification& notification, MessageFlags flags);
+};
+
+} // namespace Service::PSC

src/core/hle/service/psc/ovln/sender_service.cpp

@@ -0,0 +1,30 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/service/psc/ovln/sender.h"
+#include "core/hle/service/psc/ovln/sender_service.h"
+
+namespace Service::PSC {
+
+ISenderService::ISenderService(Core::System& system_) : ServiceFramework{system_, "ovln:snd"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&ISenderService::OpenSender>, "OpenSender"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+ISenderService::~ISenderService() = default;
+
+Result ISenderService::OpenSender(Out<SharedPointer<ISender>> out_sender, u32 sender_id,
+                                  std::array<u64, 2> data) {
+    LOG_WARNING(Service_PSC, "(STUBBED) called, sender_id={}, data={:016X} {:016X}", sender_id,
+                data[0], data[1]);
+    *out_sender = std::make_shared<ISender>(system);
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC

src/core/hle/service/psc/ovln/sender_service.h

@@ -0,0 +1,23 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/cmif_types.h"
+#include "core/hle/service/service.h"
+
+namespace Service::PSC {
+
+class ISender;
+
+class ISenderService final : public ServiceFramework<ISenderService> {
+public:
+    explicit ISenderService(Core::System& system_);
+    ~ISenderService() override;
+
+private:
+    Result OpenSender(Out<SharedPointer<ISender>> out_sender, u32 sender_id,
+                      std::array<u64, 2> data);
+};
+
+} // namespace Service::PSC

src/core/hle/service/psc/pm_control.cpp

@@ -0,0 +1,28 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/pm_control.h"
+
+namespace Service::PSC {
+
+IPmControl::IPmControl(Core::System& system_) : ServiceFramework{system_, "psc:c"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, nullptr, "Initialize"},
+        {1, nullptr, "DispatchRequest"},
+        {2, nullptr, "GetResult"},
+        {3, nullptr, "GetState"},
+        {4, nullptr, "Cancel"},
+        {5, nullptr, "PrintModuleInformation"},
+        {6, nullptr, "GetModuleInformation"},
+        {10, nullptr, "AcquireStateLock"},
+        {11, nullptr, "HasStateLock"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IPmControl::~IPmControl() = default;
+
+} // namespace Service::PSC

src/core/hle/service/psc/pm_control.h

@@ -0,0 +1,16 @@
+// 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::PSC {
+
+class IPmControl final : public ServiceFramework<IPmControl> {
+public:
+    explicit IPmControl(Core::System& system_);
+    ~IPmControl() override;
+};
+
+} // namespace Service::PSC

src/core/hle/service/psc/pm_module.cpp

@@ -0,0 +1,24 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/pm_module.h"
+
+namespace Service::PSC {
+
+IPmModule::IPmModule(Core::System& system_) : ServiceFramework{system_, "IPmModule"} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, nullptr, "Initialize"},
+            {1, nullptr, "GetRequest"},
+            {2, nullptr, "Acknowledge"},
+            {3, nullptr, "Finalize"},
+            {4, nullptr, "AcknowledgeEx"},
+        };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IPmModule::~IPmModule() = default;
+
+} // namespace Service::PSC

src/core/hle/service/psc/pm_module.h

@@ -0,0 +1,16 @@
+// 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::PSC {
+
+class IPmModule final : public ServiceFramework<IPmModule> {
+public:
+    explicit IPmModule(Core::System& system_);
+    ~IPmModule() override;
+};
+
+} // namespace Service::PSC