feat(service/aoc): Implement IContentsServiceManager

- Add IContentsServiceManager class with RequestContentsAuthorizationToken function
- Add IAsyncData class for handling asynchronous authorization token operations
- Implement CreateContentsServiceManager in IAddOnContentManager (was previously stubbed)
- Add support for GetSize, Read, Cancel, and GetSystemEvent operations in IAsyncData
- Update CMakeLists.txt to include new source files

Signed-off-by: Zephyron <zephyron@citron-emu.org>

src/core/CMakeLists.txt

@@ -505,6 +505,8 @@ add_library(core STATIC
     hle/service/am/window_system.h
     hle/service/aoc/addon_content_manager.cpp
     hle/service/aoc/addon_content_manager.h
+    hle/service/aoc/contents_service_manager.cpp
+    hle/service/aoc/contents_service_manager.h
     hle/service/aoc/purchase_event_manager.cpp
     hle/service/aoc/purchase_event_manager.h
     hle/service/apm/apm.cpp

src/core/hle/service/aoc/addon_content_manager.cpp

@@ -1,4 +1,5 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-FileCopyrightText: Copyright 2025 citron Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
@@ -16,6 +17,7 @@
 #include "core/file_sys/registered_cache.h"
 #include "core/hle/kernel/k_event.h"
 #include "core/hle/service/aoc/addon_content_manager.h"
+#include "core/hle/service/aoc/contents_service_manager.h"
 #include "core/hle/service/aoc/purchase_event_manager.h"
 #include "core/hle/service/cmif_serialization.h"
 #include "core/hle/service/ipc_helpers.h"
@@ -68,7 +70,7 @@ IAddOnContentManager::IAddOnContentManager(Core::System& system_)
         {50, D<&IAddOnContentManager::CheckAddOnContentMountStatus>, "CheckAddOnContentMountStatus"},
         {100, D<&IAddOnContentManager::CreateEcPurchasedEventManager>, "CreateEcPurchasedEventManager"},
         {101, D<&IAddOnContentManager::CreatePermanentEcPurchasedEventManager>, "CreatePermanentEcPurchasedEventManager"},
-        {110, nullptr, "CreateContentsServiceManager"},
+        {110, D<&IAddOnContentManager::CreateContentsServiceManager>, "CreateContentsServiceManager"},
         {200, nullptr, "SetRequiredAddOnContentsOnContentsAvailabilityTransition"},
         {300, nullptr, "SetupHostAddOnContent"},
         {301, nullptr, "GetRegisteredAddOnContentPath"},
@@ -214,6 +216,15 @@ Result IAddOnContentManager::CreatePermanentEcPurchasedEventManager(
     R_SUCCEED();
 }
 
+Result IAddOnContentManager::CreateContentsServiceManager(
+    OutInterface<IContentsServiceManager> out_interface) {
+    LOG_WARNING(Service_AOC, "(STUBBED) called");
+
+    *out_interface = std::make_shared<IContentsServiceManager>(system);
+
+    R_SUCCEED();
+}
+
 void LoopProcess(Core::System& system) {
     auto server_manager = std::make_unique<ServerManager>(system);
     server_manager->RegisterNamedService("aoc:u", std::make_shared<IAddOnContentManager>(system));

src/core/hle/service/aoc/addon_content_manager.h

@@ -1,4 +1,5 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-FileCopyrightText: Copyright 2025 citron Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
@@ -18,6 +19,7 @@ class KEvent;
 namespace Service::AOC {
 
 class IPurchaseEventManager;
+class IContentsServiceManager;
 
 class IAddOnContentManager final : public ServiceFramework<IAddOnContentManager> {
 public:
@@ -38,6 +40,7 @@ public:
     Result CreateEcPurchasedEventManager(OutInterface<IPurchaseEventManager> out_interface);
     Result CreatePermanentEcPurchasedEventManager(
         OutInterface<IPurchaseEventManager> out_interface);
+    Result CreateContentsServiceManager(OutInterface<IContentsServiceManager> out_interface);
 
 private:
     std::vector<u64> add_on_content;

src/core/hle/service/aoc/contents_service_manager.cpp

@@ -0,0 +1,103 @@
+// SPDX-FileCopyrightText: Copyright 2025 citron Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/aoc/contents_service_manager.h"
+#include "core/hle/service/cmif_serialization.h"
+#include "core/hle/kernel/k_event.h"
+#include "common/logging/log.h"
+
+namespace Service::AOC {
+
+IContentsServiceManager::IContentsServiceManager(Core::System& system_)
+    : ServiceFramework{system_, "IContentsServiceManager"},
+      service_context{system_, "IContentsServiceManager"} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IContentsServiceManager::RequestContentsAuthorizationToken>, "RequestContentsAuthorizationToken"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+IContentsServiceManager::~IContentsServiceManager() = default;
+
+Result IContentsServiceManager::RequestContentsAuthorizationToken(OutInterface<IAsyncData> out_async_data,
+                                                                   u64 unknown,
+                                                                   InBuffer<BufferAttr_HipcMapAlias> in_buffer) {
+    LOG_WARNING(Service_AOC, "(STUBBED) called with unknown={:016X}, buffer_size={}", unknown, in_buffer.size());
+
+    // Create a new IAsyncData interface to handle the authorization token request
+    *out_async_data = std::make_shared<IAsyncData>(system);
+
+    R_SUCCEED();
+}
+
+IAsyncData::IAsyncData(Core::System& system_)
+    : ServiceFramework{system_, "IAsyncData"},
+      service_context{system_, "IAsyncData"},
+      is_complete{false} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, D<&IAsyncData::GetSize>, "GetSize"},
+        {1, D<&IAsyncData::Read>, "Read"},
+        {2, D<&IAsyncData::Cancel>, "Cancel"},
+        {3, D<&IAsyncData::GetSystemEvent>, "GetSystemEvent"},
+    };
+    // clang-format on
+
+    RegisterHandlers(functions);
+
+    async_event = service_context.CreateEvent("IAsyncData:AsyncEvent");
+
+    // Simulate completion immediately for stub
+    data_buffer.resize(0x100, 0);
+    is_complete = true;
+    async_event->Signal();
+}
+
+IAsyncData::~IAsyncData() {
+    service_context.CloseEvent(async_event);
+}
+
+Result IAsyncData::GetSize(Out<u64> out_size) {
+    LOG_DEBUG(Service_AOC, "called");
+
+    *out_size = data_buffer.size();
+
+    R_SUCCEED();
+}
+
+Result IAsyncData::Read(OutBuffer<BufferAttr_HipcMapAlias> out_buffer, u64 offset, u64 size) {
+    LOG_DEBUG(Service_AOC, "called with offset={:016X}, size={:016X}", offset, size);
+
+    if (offset >= data_buffer.size()) {
+        R_SUCCEED();
+    }
+
+    const u64 read_size = std::min(size, static_cast<u64>(data_buffer.size() - offset));
+    const u64 copy_size = std::min(read_size, out_buffer.size());
+
+    std::memcpy(out_buffer.data(), data_buffer.data() + offset, copy_size);
+
+    R_SUCCEED();
+}
+
+Result IAsyncData::Cancel() {
+    LOG_WARNING(Service_AOC, "(STUBBED) called");
+
+    is_complete = false;
+    async_event->Clear();
+
+    R_SUCCEED();
+}
+
+Result IAsyncData::GetSystemEvent(OutCopyHandle<Kernel::KReadableEvent> out_event) {
+    LOG_DEBUG(Service_AOC, "called");
+
+    *out_event = &async_event->GetReadableEvent();
+
+    R_SUCCEED();
+}
+
+} // namespace Service::AOC

src/core/hle/service/aoc/contents_service_manager.h

@@ -0,0 +1,53 @@
+// SPDX-FileCopyrightText: Copyright 2025 citron 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/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KEvent;
+class KReadableEvent;
+}
+
+namespace Service::AOC {
+
+class IAsyncData;
+
+class IContentsServiceManager final : public ServiceFramework<IContentsServiceManager> {
+public:
+    explicit IContentsServiceManager(Core::System& system_);
+    ~IContentsServiceManager() override;
+
+    Result RequestContentsAuthorizationToken(OutInterface<IAsyncData> out_async_data,
+                                              u64 unknown,
+                                              InBuffer<BufferAttr_HipcMapAlias> in_buffer);
+
+private:
+    KernelHelpers::ServiceContext service_context;
+};
+
+class IAsyncData final : public ServiceFramework<IAsyncData> {
+public:
+    explicit IAsyncData(Core::System& system_);
+    ~IAsyncData() override;
+
+    Result GetSize(Out<u64> out_size);
+    Result Read(OutBuffer<BufferAttr_HipcMapAlias> out_buffer, u64 offset, u64 size);
+    Result Cancel();
+    Result GetSystemEvent(OutCopyHandle<Kernel::KReadableEvent> out_event);
+
+private:
+    KernelHelpers::ServiceContext service_context;
+    Kernel::KEvent* async_event;
+    std::vector<u8> data_buffer;
+    bool is_complete;
+};
+
+} // namespace Service::AOC