12 files changed, 107 insertions, 136 deletions

diff --git a/src/audio_core/renderer/audio_renderer.cpp b/src/audio_core/renderer/audio_renderer.cpp
index df03d03aa..7c728cb86 100644
--- a/src/audio_core/renderer/audio_renderer.cpp
+++ b/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,
-                            Kernel::KProcess& process, const u64 applet_resource_user_id,
-                            const s32 session_id) {
+                            const u64 transfer_memory_size, Kernel::KProcess* process_handle,
+                            const u64 applet_resource_user_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;
diff --git a/src/audio_core/renderer/audio_renderer.h b/src/audio_core/renderer/audio_renderer.h
index 1219f74ca..f16adeda7 100644
--- a/src/audio_core/renderer/audio_renderer.h
+++ b/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);
 
     /**
diff --git a/src/audio_core/renderer/behavior/info_updater.cpp b/src/audio_core/renderer/behavior/info_updater.cpp
index 667711e17..163127789 100644
--- a/src/audio_core/renderer/behavior/info_updater.cpp
+++ b/src/audio_core/renderer/behavior/info_updater.cpp
@@ -18,11 +18,10 @@
 namespace AudioCore::Renderer {
 
 InfoUpdater::InfoUpdater(std::span<const u8> input_, std::span<u8> output_,
-                         const u32 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*>(
-                                  input_origin.data())},
+                         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*>(input_origin.data())},
       out_header{reinterpret_cast<UpdateDataHeader*>(output_origin.data())},
       expected_input_size{input_.size()}, expected_output_size{output_.size()},
       process_handle{process_handle_}, behaviour{behaviour_} {
diff --git a/src/audio_core/renderer/behavior/info_updater.h b/src/audio_core/renderer/behavior/info_updater.h
index fb4b7d25a..4f27a817e 100644
--- a/src/audio_core/renderer/behavior/info_updater.h
+++ b/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,
-                         BehaviorInfo& behaviour);
+    explicit InfoUpdater(std::span<const u8> input, std::span<u8> output,
+                         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;
 };
diff --git a/src/audio_core/renderer/memory/pool_mapper.cpp b/src/audio_core/renderer/memory/pool_mapper.cpp
index 999bb746b..1df786feb 100644
--- a/src/audio_core/renderer/memory/pool_mapper.cpp
+++ b/src/audio_core/renderer/memory/pool_mapper.cpp
@@ -8,13 +8,13 @@
 
 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_,
-                       bool force_map_)
-    : process_handle{process_handle_}, pool_infos{pool_infos_.data()},
-      pool_count{pool_count_}, force_map{force_map_} {}
+PoolMapper::PoolMapper(Kernel::KProcess* process_handle_, std::span<MemoryPoolInfo> pool_infos_,
+                       u32 pool_count_, bool force_map_)
+    : process_handle{process_handle_}, pool_infos{pool_infos_.data()}, pool_count{pool_count_},
+      force_map{force_map_} {}
 
 void PoolMapper::ClearUseState(std::span<MemoryPoolInfo> pools, const u32 count) {
     for (u32 i = 0; i < count; i++) {
@@ -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);
diff --git a/src/audio_core/renderer/memory/pool_mapper.h b/src/audio_core/renderer/memory/pool_mapper.h
index 95ae5d8ea..fb5122b73 100644
--- a/src/audio_core/renderer/memory/pool_mapper.h
+++ b/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(u32 process_handle, std::span<MemoryPoolInfo> pool_infos, u32 pool_count,
-                        bool force_map);
+    explicit PoolMapper(Kernel::KProcess* process_handle, bool force_map);
+    explicit PoolMapper(Kernel::KProcess* process_handle, std::span<MemoryPoolInfo> pool_infos,
+                        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
diff --git a/src/audio_core/renderer/system.cpp b/src/audio_core/renderer/system.cpp
index ca656edae..c30d68426 100644
--- a/src/audio_core/renderer/system.cpp
+++ b/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_,
-                          u64 applet_resource_user_id_, s32 session_id_) {
+                          Kernel::KProcess* process_handle_, u64 applet_resource_user_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;
diff --git a/src/audio_core/renderer/system.h b/src/audio_core/renderer/system.h
index 753a0b796..3533a74ef 100644
--- a/src/audio_core/renderer/system.h
+++ b/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{};
-    /// Handle for the process for this system, unused
-    u32 process_handle{};
+    Kernel::KProcess* process_handle{};
     /// Applet resource id for this system, unused
     u64 applet_resource_user_id{};
     /// Controls performance input and output
diff --git a/src/core/hle/service/audio/audio_renderer.cpp b/src/core/hle/service/audio/audio_renderer.cpp
index 68415eb8f..a408fc3cf 100644
--- a/src/core/hle/service/audio/audio_renderer.cpp
+++ b/src/core/hle/service/audio/audio_renderer.cpp
@@ -10,11 +10,12 @@ using namespace AudioCore::Renderer;
 IAudioRenderer::IAudioRenderer(Core::System& system_, Manager& manager_,
                                AudioCore::AudioRendererParameterInternal& params,
                                Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size,
-                               u32 process_handle, Kernel::KProcess& process_,
-                               u64 applet_resource_user_id, s32 session_id)
+                               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{process_} {
+      impl{std::make_unique<Renderer>(system_, manager, rendered_event)},
+      process_handle{process_handle_} {
     // clang-format off
     static const FunctionInfo functions[] = {
         {0, &IAudioRenderer::GetSampleRate, "GetSampleRate"},
@@ -35,15 +36,15 @@ IAudioRenderer::IAudioRenderer(Core::System& system_, Manager& manager_,
     // clang-format on
     RegisterHandlers(functions);
 
-    process.Open();
-    impl->Initialize(params, transfer_memory, transfer_memory_size, process_handle, process,
+    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.Close();
+    process_handle->Close();
 }
 
 void IAudioRenderer::GetSampleRate(HLERequestContext& ctx) {
diff --git a/src/core/hle/service/audio/audio_renderer.h b/src/core/hle/service/audio/audio_renderer.h
index f8c48154b..d3e7461ef 100644
--- a/src/core/hle/service/audio/audio_renderer.h
+++ b/src/core/hle/service/audio/audio_renderer.h
@@ -14,8 +14,8 @@ public:
     explicit IAudioRenderer(Core::System& system_, AudioCore::Renderer::Manager& manager_,
                             AudioCore::AudioRendererParameterInternal& params,
                             Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size,
-                            u32 process_handle, Kernel::KProcess& process_,
-                            u64 applet_resource_user_id, s32 session_id);
+                            Kernel::KProcess* process_handle_, u64 applet_resource_user_id,
+                            s32 session_id);
     ~IAudioRenderer() override;
 
 private:
@@ -37,7 +37,7 @@ private:
     Kernel::KEvent* rendered_event;
     AudioCore::Renderer::Manager& manager;
     std::unique_ptr<AudioCore::Renderer::Renderer> impl;
-    Kernel::KProcess& process;
+    Kernel::KProcess* process_handle;
     Common::ScratchBuffer<u8> output_buffer;
     Common::ScratchBuffer<u8> performance_buffer;
 };
diff --git a/src/core/hle/service/audio/audio_renderer_manager.cpp b/src/core/hle/service/audio/audio_renderer_manager.cpp
index 7baa9d8cf..3129169a4 100644
--- a/src/core/hle/service/audio/audio_renderer_manager.cpp
+++ b/src/core/hle/service/audio/audio_renderer_manager.cpp
@@ -8,22 +8,21 @@
 #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/ipc_helpers.h"
+#include "core/hle/service/cmif_serialization.h"
 
 namespace Service::Audio {
 
 using namespace AudioCore::Renderer;
 
 IAudioRendererManager::IAudioRendererManager(Core::System& system_)
-    : ServiceFramework{system_, "audren:u"}, service_context{system_, "audren:u"},
-      impl{std::make_unique<Manager>(system_)} {
+    : ServiceFramework{system_, "audren:u"}, impl{std::make_unique<Manager>(system_)} {
     // clang-format off
     static const FunctionInfo functions[] = {
-        {0, &IAudioRendererManager::OpenAudioRenderer, "OpenAudioRenderer"},
-        {1, &IAudioRendererManager::GetWorkBufferSize, "GetWorkBufferSize"},
-        {2, &IAudioRendererManager::GetAudioDeviceService, "GetAudioDeviceService"},
+        {0, C<&IAudioRendererManager::OpenAudioRenderer>, "OpenAudioRenderer"},
+        {1, C<&IAudioRendererManager::GetWorkBufferSize>, "GetWorkBufferSize"},
+        {2, C<&IAudioRendererManager::GetAudioDeviceService>, "GetAudioDeviceService"},
         {3, nullptr, "OpenAudioRendererForManualExecution"},
-        {4, &IAudioRendererManager::GetAudioDeviceServiceWithRevisionInfo, "GetAudioDeviceServiceWithRevisionInfo"},
+        {4, C<&IAudioRendererManager::GetAudioDeviceServiceWithRevisionInfo>, "GetAudioDeviceServiceWithRevisionInfo"},
     };
     // clang-format on
 
@@ -32,53 +31,38 @@ IAudioRendererManager::IAudioRendererManager(Core::System& system_)
 
 IAudioRendererManager::~IAudioRendererManager() = default;
 
-void IAudioRendererManager::OpenAudioRenderer(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-
-    AudioCore::AudioRendererParameterInternal params;
-    rp.PopRaw<AudioCore::AudioRendererParameterInternal>(params);
-    rp.Skip(1, false);
-    auto transfer_memory_size = rp.Pop<u64>();
-    auto applet_resource_user_id = rp.Pop<u64>();
-    auto transfer_memory_handle = ctx.GetCopyHandle(0);
-    auto process_handle = ctx.GetCopyHandle(1);
+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!");
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(Audio::ResultOutOfSessions);
-        return;
+        R_THROW(Audio::ResultOutOfSessions);
     }
 
-    auto process{ctx.GetObjectFromHandle<Kernel::KProcess>(process_handle).GetPointerUnsafe()};
-    auto transfer_memory{ctx.GetObjectFromHandle<Kernel::KTransferMemory>(transfer_memory_handle)};
-
     const auto session_id{impl->GetSessionId()};
     if (session_id == -1) {
         LOG_ERROR(Service_Audio, "Tried to open a session that's already in use!");
-        IPC::ResponseBuilder rb{ctx, 2};
-        rb.Push(Audio::ResultOutOfSessions);
-        return;
+        R_THROW(Audio::ResultOutOfSessions);
     }
 
     LOG_DEBUG(Service_Audio, "Opened new AudioRenderer session {} sessions open {}", session_id,
               impl->GetSessionCount());
 
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-    rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IAudioRenderer>(system, *impl, params, transfer_memory.GetPointerUnsafe(),
-                                        transfer_memory_size, process_handle, *process,
-                                        applet_resource_user_id, session_id);
+    *out_audio_renderer =
+        std::make_shared<IAudioRenderer>(system, *impl, parameter, tmem_handle.Get(), tmem_size,
+                                         process_handle.Get(), aruid.pid, session_id);
+    R_SUCCEED();
 }
 
-void IAudioRendererManager::GetWorkBufferSize(HLERequestContext& ctx) {
-    AudioCore::AudioRendererParameterInternal params;
+Result IAudioRendererManager::GetWorkBufferSize(Out<u64> out_size,
+                                                AudioCore::AudioRendererParameterInternal params) {
+    LOG_DEBUG(Service_Audio, "called");
 
-    IPC::RequestParser rp{ctx};
-    rp.PopRaw<AudioCore::AudioRendererParameterInternal>(params);
-
-    u64 size{0};
-    auto result = impl->GetWorkBufferSize(params, size);
+    R_TRY(impl->GetWorkBufferSize(params, *out_size))
 
     std::string output_info{};
     output_info += fmt::format("\tRevision {}", AudioCore::GetRevisionNum(params.revision));
@@ -95,49 +79,26 @@ void IAudioRendererManager::GetWorkBufferSize(HLERequestContext& ctx) {
         params.external_context_size);
 
     LOG_DEBUG(Service_Audio, "called.\nInput params:\n{}\nOutput params:\n\tWorkbuffer size {:08X}",
-              output_info, size);
-
-    IPC::ResponseBuilder rb{ctx, 4};
-    rb.Push(result);
-    rb.Push<u64>(size);
-}
-
-void IAudioRendererManager::GetAudioDeviceService(HLERequestContext& ctx) {
-    IPC::RequestParser rp{ctx};
-
-    const auto applet_resource_user_id = rp.Pop<u64>();
-
-    LOG_DEBUG(Service_Audio, "called. Applet resource id {}", applet_resource_user_id);
-
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-
-    rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IAudioDevice>(system, applet_resource_user_id,
-                                      ::Common::MakeMagic('R', 'E', 'V', '1'), num_audio_devices++);
+              output_info, *out_size);
+    R_SUCCEED();
 }
 
-void IAudioRendererManager::OpenAudioRendererForManualExecution(HLERequestContext& ctx) {
-    LOG_ERROR(Service_Audio, "called. Implement me!");
+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();
 }
 
-void IAudioRendererManager::GetAudioDeviceServiceWithRevisionInfo(HLERequestContext& ctx) {
-    struct Parameters {
-        u32 revision;
-        u64 applet_resource_user_id;
-    };
-
-    IPC::RequestParser rp{ctx};
-
-    const auto [revision, applet_resource_user_id] = rp.PopRaw<Parameters>();
-
-    LOG_DEBUG(Service_Audio, "called. Revision {} Applet resource id {}",
-              AudioCore::GetRevisionNum(revision), applet_resource_user_id);
-
-    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
-
-    rb.Push(ResultSuccess);
-    rb.PushIpcInterface<IAudioDevice>(system, applet_resource_user_id, revision,
-                                      num_audio_devices++);
+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
diff --git a/src/core/hle/service/audio/audio_renderer_manager.h b/src/core/hle/service/audio/audio_renderer_manager.h
index 3623f91c6..69eee664c 100644
--- a/src/core/hle/service/audio/audio_renderer_manager.h
+++ b/src/core/hle/service/audio/audio_renderer_manager.h
@@ -4,14 +4,12 @@
 #pragma once
 
 #include "audio_core/audio_render_manager.h"
-#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/cmif_types.h"
 #include "core/hle/service/service.h"
 
-namespace Core {
-class System;
-}
-
 namespace Service::Audio {
+
+class IAudioDevice;
 class IAudioRenderer;
 
 class IAudioRendererManager final : public ServiceFramework<IAudioRendererManager> {
@@ -20,13 +18,18 @@ public:
     ~IAudioRendererManager() override;
 
 private:
-    void OpenAudioRenderer(HLERequestContext& ctx);
-    void GetWorkBufferSize(HLERequestContext& ctx);
-    void GetAudioDeviceService(HLERequestContext& ctx);
-    void OpenAudioRendererForManualExecution(HLERequestContext& ctx);
-    void GetAudioDeviceServiceWithRevisionInfo(HLERequestContext& ctx);
+    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);
 
-    KernelHelpers::ServiceContext service_context;
     std::unique_ptr<AudioCore::Renderer::Manager> impl;
     u32 num_audio_devices{0};
 };