Add support for linking against system opus

Update video core popup

.ci/scripts/merge/apply-patches-by-label-private.py

@@ -25,7 +25,7 @@ def check_individual(repo_id, pr_id):
 
 def merge_pr(pn, ref):
     print("Matched PR# %s" % pn)
-    print(subprocess.check_output(["git", "fetch", "https://%sdev.azure.com/%s/_git/%s" % (user, org, repo), ref, "-f"]))
+    print(subprocess.check_output(["git", "fetch", "https://%sdev.azure.com/%s/_git/%s" % (user, org, repo), ref, "-f", "--no-recurse-submodules"]))
     print(subprocess.check_output(["git", "merge", "--squash", 'origin/' + ref.replace('refs/heads/','')]))
     print(subprocess.check_output(["git", "commit", "-m\"Merge %s PR %s\"" % (tagline, pn)]))
 

.ci/scripts/merge/apply-patches-by-label.py

@@ -25,7 +25,7 @@ def do_page(page):
             if (check_individual(pr["labels"])):
                 pn = pr["number"]
                 print("Matched PR# %s" % pn)
-                print(subprocess.check_output(["git", "fetch", "https://github.com/yuzu-emu/yuzu.git", "pull/%s/head:pr-%s" % (pn, pn), "-f"]))
+                print(subprocess.check_output(["git", "fetch", "https://github.com/yuzu-emu/yuzu.git", "pull/%s/head:pr-%s" % (pn, pn), "-f", "--no-recurse-submodules"]))
                 print(subprocess.check_output(["git", "merge", "--squash", "pr-%s" % pn]))
                 print(subprocess.check_output(["git", "commit", "-m\"Merge %s PR %s\"" % (tagline, pn)]))
 

CMakeLists.txt

@@ -33,6 +33,8 @@ option(ENABLE_CUBEB "Enables the cubeb audio backend" ON)
 
 option(USE_DISCORD_PRESENCE "Enables Discord Rich Presence" OFF)
 
+option(YUZU_USE_BUNDLED_OPUS "Compile bundled opus" ON)
+
 # Default to a Release build
 get_property(IS_MULTI_CONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
 if (NOT IS_MULTI_CONFIG AND NOT CMAKE_BUILD_TYPE)
@@ -57,7 +59,7 @@ function(check_submodules_present)
         string(REGEX REPLACE "path *= *" "" module ${module})
         if (NOT EXISTS "${PROJECT_SOURCE_DIR}/${module}/.git")
             message(FATAL_ERROR "Git submodule ${module} not found. "
-                    "Please run: git submodule update --init --recursive")
+                    "Please run: \ngit submodule update --init --recursive")
         endif()
     endforeach()
 endfunction()
@@ -131,7 +133,7 @@ add_definitions(-DBOOST_ASIO_DISABLE_CONCEPTS)
 if (MSVC)
     add_compile_options($<$<COMPILE_LANGUAGE:CXX>:/std:c++latest>)
 
-    # cubeb and boost still make use of deprecated result_of.
+    # boost still makes use of deprecated result_of.
     add_definitions(-D_HAS_DEPRECATED_RESULT_OF)
 else()
     set(CMAKE_CXX_STANDARD 20)
@@ -166,8 +168,8 @@ macro(yuzu_find_packages)
     # Capitalization matters here. We need the naming to match the generated paths from Conan
     set(REQUIRED_LIBS
     #    Cmake Pkg Prefix  Version     Conan Pkg
-        "Catch2            2.13        catch2/2.13.0"
-        "fmt               8.0         fmt/8.0.0"
+        "Catch2            2.13.7      catch2/2.13.7"
+        "fmt               8.0.1       fmt/8.0.1"
         "lz4               1.8         lz4/1.9.2"
         "nlohmann_json     3.8         nlohmann_json/3.8.0"
         "ZLIB              1.2         zlib/1.2.11"
@@ -370,7 +372,7 @@ if (ENABLE_SDL2)
     if (YUZU_USE_BUNDLED_SDL2)
         # Detect toolchain and platform
         if ((MSVC_VERSION GREATER_EQUAL 1920 AND MSVC_VERSION LESS 1940) AND ARCHITECTURE_x86_64)
-            set(SDL2_VER "SDL2-2.0.16")
+            set(SDL2_VER "SDL2-2.0.18")
         else()
             message(FATAL_ERROR "No bundled SDL2 binaries for your toolchain. Disable YUZU_USE_BUNDLED_SDL2 and provide your own.")
         endif()
@@ -390,7 +392,7 @@ if (ENABLE_SDL2)
     elseif (YUZU_USE_EXTERNAL_SDL2)
         message(STATUS "Using SDL2 from externals.")
     else()
-        find_package(SDL2 2.0.16 REQUIRED)
+        find_package(SDL2 2.0.18 REQUIRED)
 
         # Some installations don't set SDL2_LIBRARIES
         if("${SDL2_LIBRARIES}" STREQUAL "")
@@ -600,6 +602,7 @@ if (YUZU_USE_BUNDLED_FFMPEG)
                 ${LIBVA_LIBRARIES})
             set(FFmpeg_HWACCEL_FLAGS
                 --enable-hwaccel=h264_vaapi
+                --enable-hwaccel=vp8_vaapi
                 --enable-hwaccel=vp9_vaapi
                 --enable-libdrm)
             list(APPEND FFmpeg_HWACCEL_INCLUDE_DIRS
@@ -620,6 +623,7 @@ if (YUZU_USE_BUNDLED_FFMPEG)
                 --enable-ffnvcodec
                 --enable-nvdec
                 --enable-hwaccel=h264_nvdec
+                --enable-hwaccel=vp8_nvdec
                 --enable-hwaccel=vp9_nvdec
                 --extra-cflags=-I${CUDA_INCLUDE_DIRS}
             )
@@ -670,6 +674,7 @@ if (YUZU_USE_BUNDLED_FFMPEG)
                     --disable-postproc
                     --disable-swresample
                     --enable-decoder=h264
+                    --enable-decoder=vp8
                     --enable-decoder=vp9
                     --cc="${CMAKE_C_COMPILER}"
                     --cxx="${CMAKE_CXX_COMPILER}"

README.md

@@ -17,7 +17,7 @@ It is written in C++ with portability in mind, and we actively maintain builds f
             alt="Azure Mainline CI Build Status">
     </a>
     <a href="https://discord.com/invite/u77vRWY">
-        <img src="https://img.shields.io/discord/398318088170242053?color=%237289DA&label=yuzu&logo=discord&logoColor=white"
+        <img src="https://img.shields.io/discord/398318088170242053?color=5865F2&label=yuzu&logo=discord&logoColor=white"
             alt="Discord">
     </a>
 </p>

externals/CMakeLists.txt

@@ -44,10 +44,6 @@ target_include_directories(mbedtls PUBLIC ./mbedtls/include)
 add_library(microprofile INTERFACE)
 target_include_directories(microprofile INTERFACE ./microprofile)
 
-# Unicorn
-add_library(unicorn-headers INTERFACE)
-target_include_directories(unicorn-headers INTERFACE ./unicorn/include)
-
 # libusb
 if (NOT LIBUSB_FOUND OR YUZU_USE_BUNDLED_LIBUSB)
     add_subdirectory(libusb)
@@ -120,8 +116,8 @@ if (ENABLE_WEB_SERVICE)
 endif()
 
 # Opus
-find_package(opus 1.3)
-if (NOT opus_FOUND)
-    message(STATUS "opus 1.3 or newer not found, falling back to externals")
+if (YUZU_USE_BUNDLED_OPUS)
     add_subdirectory(opus EXCLUDE_FROM_ALL)
+else()
+    find_package(opus 1.3 REQUIRED)
 endif()

externals/FidelityFX-FSR/license.txt

@@ -0,0 +1,19 @@
+Copyright (c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

externals/find-modules/FindUnicorn.cmake

@@ -1,18 +0,0 @@
-# Exports:
-#  LIBUNICORN_FOUND
-#  LIBUNICORN_INCLUDE_DIR
-#  LIBUNICORN_LIBRARY
-
-find_path(LIBUNICORN_INCLUDE_DIR
-          unicorn/unicorn.h
-          HINTS $ENV{UNICORNDIR}
-          PATH_SUFFIXES include)
-
-find_library(LIBUNICORN_LIBRARY
-             NAMES unicorn
-             HINTS $ENV{UNICORNDIR})
-
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(unicorn DEFAULT_MSG
-                                  LIBUNICORN_LIBRARY LIBUNICORN_INCLUDE_DIR)
-mark_as_advanced(LIBUNICORN_INCLUDE_DIR LIBUNICORN_LIBRARY)

src/CMakeLists.txt

@@ -24,6 +24,7 @@ if (MSVC)
     # /W3                 - Level 3 warnings
     # /MP                 - Multi-threaded compilation
     # /Zi                 - Output debugging information
+    # /Zm                 - Specifies the precompiled header memory allocation limit
     # /Zo                 - Enhanced debug info for optimized builds
     # /permissive-        - Enables stricter C++ standards conformance checks
     # /EHsc               - C++-only exception handling semantics
@@ -36,6 +37,7 @@ if (MSVC)
     add_compile_options(
         /MP
         /Zi
+        /Zm200
         /Zo
         /permissive-
         /EHsc

src/audio_core/delay_line.cpp

@@ -1,3 +1,7 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
 #include <cstring>
 #include "audio_core/delay_line.h"
 

src/audio_core/delay_line.h

@@ -1,3 +1,7 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
 #pragma once
 
 #include "common/common_types.h"

src/common/CMakeLists.txt

@@ -73,6 +73,7 @@ add_library(common STATIC
     hex_util.h
     host_memory.cpp
     host_memory.h
+    input.h
     intrusive_red_black_tree.h
     literals.h
     logging/backend.cpp

src/common/bit_util.h

@@ -7,6 +7,7 @@
 #include <bit>
 #include <climits>
 #include <cstddef>
+#include <type_traits>
 
 #include "common/common_types.h"
 
@@ -44,4 +45,10 @@ template <typename T>
     return static_cast<u32>(log2_f + static_cast<u64>((value ^ (1ULL << log2_f)) != 0ULL));
 }
 
+template <typename T>
+requires std::is_integral_v<T>
+[[nodiscard]] T NextPow2(T value) {
+    return static_cast<T>(1ULL << ((8U * sizeof(T)) - std::countl_zero(value - 1U)));
+}
+
 } // namespace Common

src/common/host_memory.cpp

@@ -1,3 +1,7 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
 #ifdef _WIN32
 
 #include <iterator>

src/common/input.h

@@ -0,0 +1,366 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <functional>
+#include <memory>
+#include <string>
+#include <unordered_map>
+#include <utility>
+#include "common/logging/log.h"
+#include "common/param_package.h"
+#include "common/uuid.h"
+
+namespace Common::Input {
+
+// Type of data that is expected to recieve or send
+enum class InputType {
+    None,
+    Battery,
+    Button,
+    Stick,
+    Analog,
+    Trigger,
+    Motion,
+    Touch,
+    Color,
+    Vibration,
+    Nfc,
+    Ir,
+};
+
+// Internal battery charge level
+enum class BatteryLevel : u32 {
+    None,
+    Empty,
+    Critical,
+    Low,
+    Medium,
+    Full,
+    Charging,
+};
+
+enum class PollingMode {
+    // Constant polling of buttons, analogs and motion data
+    Active,
+    // Only update on button change, digital analogs
+    Pasive,
+    // Enable near field communication polling
+    NFC,
+    // Enable infrared camera polling
+    IR,
+};
+
+// Vibration reply from the controller
+enum class VibrationError {
+    None,
+    NotSupported,
+    Disabled,
+    Unknown,
+};
+
+// Polling mode reply from the controller
+enum class PollingError {
+    None,
+    NotSupported,
+    Unknown,
+};
+
+// Hint for amplification curve to be used
+enum class VibrationAmplificationType {
+    Linear,
+    Exponential,
+};
+
+// Analog properties for calibration
+struct AnalogProperties {
+    // Anything below this value will be detected as zero
+    float deadzone{};
+    // Anyting above this values will be detected as one
+    float range{1.0f};
+    // Minimum value to be detected as active
+    float threshold{0.5f};
+    // Drift correction applied to the raw data
+    float offset{};
+    // Invert direction of the sensor data
+    bool inverted{};
+};
+
+// Single analog sensor data
+struct AnalogStatus {
+    float value{};
+    float raw_value{};
+    AnalogProperties properties{};
+};
+
+// Button data
+struct ButtonStatus {
+    Common::UUID uuid{};
+    bool value{};
+    bool inverted{};
+    bool toggle{};
+    bool locked{};
+};
+
+// Internal battery data
+using BatteryStatus = BatteryLevel;
+
+// Analog and digital joystick data
+struct StickStatus {
+    Common::UUID uuid{};
+    AnalogStatus x{};
+    AnalogStatus y{};
+    bool left{};
+    bool right{};
+    bool up{};
+    bool down{};
+};
+
+// Analog and digital trigger data
+struct TriggerStatus {
+    Common::UUID uuid{};
+    AnalogStatus analog{};
+    ButtonStatus pressed{};
+};
+
+// 3D vector representing motion input
+struct MotionSensor {
+    AnalogStatus x{};
+    AnalogStatus y{};
+    AnalogStatus z{};
+};
+
+// Motion data used to calculate controller orientation
+struct MotionStatus {
+    // Gyroscope vector measurement in radians/s.
+    MotionSensor gyro{};
+    // Acceleration vector measurement in G force
+    MotionSensor accel{};
+    // Time since last measurement in microseconds
+    u64 delta_timestamp{};
+    // Request to update after reading the value
+    bool force_update{};
+};
+
+// Data of a single point on a touch screen
+struct TouchStatus {
+    ButtonStatus pressed{};
+    AnalogStatus x{};
+    AnalogStatus y{};
+    int id{};
+};
+
+// Physical controller color in RGB format
+struct BodyColorStatus {
+    u32 body{};
+    u32 buttons{};
+};
+
+// HD rumble data
+struct VibrationStatus {
+    f32 low_amplitude{};
+    f32 low_frequency{};
+    f32 high_amplitude{};
+    f32 high_frequency{};
+    VibrationAmplificationType type;
+};
+
+// Physical controller LED pattern
+struct LedStatus {
+    bool led_1{};
+    bool led_2{};
+    bool led_3{};
+    bool led_4{};
+};
+
+// List of buttons to be passed to Qt that can be translated
+enum class ButtonNames {
+    Undefined,
+    Invalid,
+    // This will display the engine name instead of the button name
+    Engine,
+    // This will display the button by value instead of the button name
+    Value,
+    ButtonLeft,
+    ButtonRight,
+    ButtonDown,
+    ButtonUp,
+    TriggerZ,
+    TriggerR,
+    TriggerL,
+    ButtonA,
+    ButtonB,
+    ButtonX,
+    ButtonY,
+    ButtonStart,
+
+    // DS4 button names
+    L1,
+    L2,
+    L3,
+    R1,
+    R2,
+    R3,
+    Circle,
+    Cross,
+    Square,
+    Triangle,
+    Share,
+    Options,
+};
+
+// Callback data consisting of an input type and the equivalent data status
+struct CallbackStatus {
+    InputType type{InputType::None};
+    ButtonStatus button_status{};
+    StickStatus stick_status{};
+    AnalogStatus analog_status{};
+    TriggerStatus trigger_status{};
+    MotionStatus motion_status{};
+    TouchStatus touch_status{};
+    BodyColorStatus color_status{};
+    BatteryStatus battery_status{};
+    VibrationStatus vibration_status{};
+};
+
+// Triggered once every input change
+struct InputCallback {
+    std::function<void(const CallbackStatus&)> on_change;
+};
+
+/// An abstract class template for an input device (a button, an analog input, etc.).
+class InputDevice {
+public:
+    virtual ~InputDevice() = default;
+
+    // Request input device to update if necessary
+    virtual void SoftUpdate() {}
+
+    // Force input device to update data regardless of the current state
+    virtual void ForceUpdate() {}
+
+    // Sets the function to be triggered when input changes
+    void SetCallback(InputCallback callback_) {
+        callback = std::move(callback_);
+    }
+
+    // Triggers the function set in the callback
+    void TriggerOnChange(const CallbackStatus& status) {
+        if (callback.on_change) {
+            callback.on_change(status);
+        }
+    }
+
+private:
+    InputCallback callback;
+};
+
+/// An abstract class template for an output device (rumble, LED pattern, polling mode).
+class OutputDevice {
+public:
+    virtual ~OutputDevice() = default;
+
+    virtual void SetLED([[maybe_unused]] const LedStatus& led_status) {}
+
+    virtual VibrationError SetVibration([[maybe_unused]] const VibrationStatus& vibration_status) {
+        return VibrationError::NotSupported;
+    }
+
+    virtual PollingError SetPollingMode([[maybe_unused]] PollingMode polling_mode) {
+        return PollingError::NotSupported;
+    }
+};
+
+/// An abstract class template for a factory that can create input devices.
+template <typename InputDeviceType>
+class Factory {
+public:
+    virtual ~Factory() = default;
+    virtual std::unique_ptr<InputDeviceType> Create(const Common::ParamPackage&) = 0;
+};
+
+namespace Impl {
+
+template <typename InputDeviceType>
+using FactoryListType = std::unordered_map<std::string, std::shared_ptr<Factory<InputDeviceType>>>;
+
+template <typename InputDeviceType>
+struct FactoryList {
+    static FactoryListType<InputDeviceType> list;
+};
+
+template <typename InputDeviceType>
+FactoryListType<InputDeviceType> FactoryList<InputDeviceType>::list;
+
+} // namespace Impl
+
+/**
+ * Registers an input device factory.
+ * @tparam InputDeviceType the type of input devices the factory can create
+ * @param name the name of the factory. Will be used to match the "engine" parameter when creating
+ *     a device
+ * @param factory the factory object to register
+ */
+template <typename InputDeviceType>
+void RegisterFactory(const std::string& name, std::shared_ptr<Factory<InputDeviceType>> factory) {
+    auto pair = std::make_pair(name, std::move(factory));
+    if (!Impl::FactoryList<InputDeviceType>::list.insert(std::move(pair)).second) {
+        LOG_ERROR(Input, "Factory '{}' already registered", name);
+    }
+}
+
+/**
+ * Unregisters an input device factory.
+ * @tparam InputDeviceType the type of input devices the factory can create
+ * @param name the name of the factory to unregister
+ */
+template <typename InputDeviceType>
+void UnregisterFactory(const std::string& name) {
+    if (Impl::FactoryList<InputDeviceType>::list.erase(name) == 0) {
+        LOG_ERROR(Input, "Factory '{}' not registered", name);
+    }
+}
+
+/**
+ * Create an input device from given paramters.
+ * @tparam InputDeviceType the type of input devices to create
+ * @param params a serialized ParamPackage string that contains all parameters for creating the
+ * device
+ */
+template <typename InputDeviceType>
+std::unique_ptr<InputDeviceType> CreateDeviceFromString(const std::string& params) {
+    const Common::ParamPackage package(params);
+    const std::string engine = package.Get("engine", "null");
+    const auto& factory_list = Impl::FactoryList<InputDeviceType>::list;
+    const auto pair = factory_list.find(engine);
+    if (pair == factory_list.end()) {
+        if (engine != "null") {
+            LOG_ERROR(Input, "Unknown engine name: {}", engine);
+        }
+        return std::make_unique<InputDeviceType>();
+    }
+    return pair->second->Create(package);
+}
+
+/**
+ * Create an input device from given paramters.
+ * @tparam InputDeviceType the type of input devices to create
+ * @param A ParamPackage that contains all parameters for creating the device
+ */
+template <typename InputDeviceType>
+std::unique_ptr<InputDeviceType> CreateDevice(const Common::ParamPackage package) {
+    const std::string engine = package.Get("engine", "null");
+    const auto& factory_list = Impl::FactoryList<InputDeviceType>::list;
+    const auto pair = factory_list.find(engine);
+    if (pair == factory_list.end()) {
+        if (engine != "null") {
+            LOG_ERROR(Input, "Unknown engine name: {}", engine);
+        }
+        return std::make_unique<InputDeviceType>();
+    }
+    return pair->second->Create(package);
+}
+
+} // namespace Common::Input

src/common/logging/filter.cpp

@@ -114,6 +114,7 @@ bool ParseFilterRule(Filter& instance, Iterator begin, Iterator end) {
     SUB(Service, NGCT)                                                                             \
     SUB(Service, NIFM)                                                                             \
     SUB(Service, NIM)                                                                              \
+    SUB(Service, NOTIF)                                                                            \
     SUB(Service, NPNS)                                                                             \
     SUB(Service, NS)                                                                               \
     SUB(Service, NVDRV)                                                                            \

src/common/logging/types.h

@@ -82,6 +82,7 @@ enum class Class : u8 {
     Service_NGCT,      ///< The NGCT (No Good Content for Terra) service
     Service_NIFM,      ///< The NIFM (Network interface) service
     Service_NIM,       ///< The NIM service
+    Service_NOTIF,     ///< The NOTIF (Notification) service
     Service_NPNS,      ///< The NPNS service
     Service_NS,        ///< The NS services
     Service_NVDRV,     ///< The NVDRV (Nvidia driver) service

src/common/math_util.h

@@ -48,8 +48,8 @@ struct Rectangle {
     }
 
     [[nodiscard]] Rectangle<T> Scale(const float s) const {
-        return Rectangle{left, top, static_cast<T>(left + GetWidth() * s),
-                         static_cast<T>(top + GetHeight() * s)};
+        return Rectangle{left, top, static_cast<T>(static_cast<float>(left + GetWidth()) * s),
+                         static_cast<T>(static_cast<float>(top + GetHeight()) * s)};
     }
 };
 

src/common/settings.cpp

@@ -47,7 +47,9 @@ void LogSettings() {
     log_setting("System_TimeZoneIndex", values.time_zone_index.GetValue());
     log_setting("Core_UseMultiCore", values.use_multi_core.GetValue());
     log_setting("CPU_Accuracy", values.cpu_accuracy.GetValue());
-    log_setting("Renderer_UseResolutionFactor", values.resolution_factor.GetValue());
+    log_setting("Renderer_UseResolutionScaling", values.resolution_setup.GetValue());
+    log_setting("Renderer_ScalingFilter", values.scaling_filter.GetValue());
+    log_setting("Renderer_AntiAliasing", values.anti_aliasing.GetValue());
     log_setting("Renderer_UseSpeedLimit", values.use_speed_limit.GetValue());
     log_setting("Renderer_SpeedLimit", values.speed_limit.GetValue());
     log_setting("Renderer_UseDiskShaderCache", values.use_disk_shader_cache.GetValue());
@@ -105,6 +107,55 @@ float Volume() {
     return values.volume.GetValue() / 100.0f;
 }
 
+void UpdateRescalingInfo() {
+    const auto setup = values.resolution_setup.GetValue();
+    auto& info = values.resolution_info;
+    info.downscale = false;
+    switch (setup) {
+    case ResolutionSetup::Res1_2X:
+        info.up_scale = 1;
+        info.down_shift = 1;
+        info.downscale = true;
+        break;
+    case ResolutionSetup::Res3_4X:
+        info.up_scale = 3;
+        info.down_shift = 2;
+        info.downscale = true;
+        break;
+    case ResolutionSetup::Res1X:
+        info.up_scale = 1;
+        info.down_shift = 0;
+        break;
+    case ResolutionSetup::Res2X:
+        info.up_scale = 2;
+        info.down_shift = 0;
+        break;
+    case ResolutionSetup::Res3X:
+        info.up_scale = 3;
+        info.down_shift = 0;
+        break;
+    case ResolutionSetup::Res4X:
+        info.up_scale = 4;
+        info.down_shift = 0;
+        break;
+    case ResolutionSetup::Res5X:
+        info.up_scale = 5;
+        info.down_shift = 0;
+        break;
+    case ResolutionSetup::Res6X:
+        info.up_scale = 6;
+        info.down_shift = 0;
+        break;
+    default:
+        UNREACHABLE();
+        info.up_scale = 1;
+        info.down_shift = 0;
+    }
+    info.up_factor = static_cast<f32>(info.up_scale) / (1U << info.down_shift);
+    info.down_factor = static_cast<f32>(1U << info.down_shift) / info.up_scale;
+    info.active = info.up_scale != 1 || info.down_shift != 0;
+}
+
 void RestoreGlobalState(bool is_powered_on) {
     // If a game is running, DO NOT restore the global settings state
     if (is_powered_on) {
@@ -132,6 +183,7 @@ void RestoreGlobalState(bool is_powered_on) {
     values.max_anisotropy.SetGlobal(true);
     values.use_speed_limit.SetGlobal(true);
     values.speed_limit.SetGlobal(true);
+    values.fps_cap.SetGlobal(true);
     values.use_disk_shader_cache.SetGlobal(true);
     values.gpu_accuracy.SetGlobal(true);
     values.use_asynchronous_gpu_emulation.SetGlobal(true);

src/common/settings.h

@@ -6,7 +6,6 @@
 
 #include <algorithm>
 #include <array>
-#include <atomic>
 #include <map>
 #include <optional>
 #include <string>
@@ -52,6 +51,56 @@ enum class NvdecEmulation : u32 {
     GPU = 2,
 };
 
+enum class ResolutionSetup : u32 {
+    Res1_2X = 0,
+    Res3_4X = 1,
+    Res1X = 2,
+    Res2X = 3,
+    Res3X = 4,
+    Res4X = 5,
+    Res5X = 6,
+    Res6X = 7,
+};
+
+enum class ScalingFilter : u32 {
+    NearestNeighbor = 0,
+    Bilinear = 1,
+    Bicubic = 2,
+    Gaussian = 3,
+    ScaleForce = 4,
+    Fsr = 5,
+    LastFilter = Fsr,
+};
+
+enum class AntiAliasing : u32 {
+    None = 0,
+    Fxaa = 1,
+    LastAA = Fxaa,
+};
+
+struct ResolutionScalingInfo {
+    u32 up_scale{1};
+    u32 down_shift{0};
+    f32 up_factor{1.0f};
+    f32 down_factor{1.0f};
+    bool active{};
+    bool downscale{};
+
+    s32 ScaleUp(s32 value) const {
+        if (value == 0) {
+            return 0;
+        }
+        return std::max((value * static_cast<s32>(up_scale)) >> static_cast<s32>(down_shift), 1);
+    }
+
+    u32 ScaleUp(u32 value) const {
+        if (value == 0U) {
+            return 0U;
+        }
+        return std::max((value * up_scale) >> down_shift, 1U);
+    }
+};
+
 /** The BasicSetting class is a simple resource manager. It defines a label and default value
  * alongside the actual value of the setting for simpler and less-error prone use with frontend
  * configurations. Setting a default value and label is required, though subclasses may deviate from
@@ -451,7 +500,10 @@ struct Values {
                                                          "disable_shader_loop_safety_checks"};
     Setting<int> vulkan_device{0, "vulkan_device"};
 
-    Setting<u16> resolution_factor{1, "resolution_factor"};
+    ResolutionScalingInfo resolution_info{};
+    Setting<ResolutionSetup> resolution_setup{ResolutionSetup::Res1X, "resolution_setup"};
+    Setting<ScalingFilter> scaling_filter{ScalingFilter::Bilinear, "scaling_filter"};
+    Setting<AntiAliasing> anti_aliasing{AntiAliasing::None, "anti_aliasing"};
     // *nix platforms may have issues with the borderless windowed fullscreen mode.
     // Default to exclusive fullscreen on these platforms for now.
     RangedSetting<FullscreenMode> fullscreen_mode{
@@ -462,7 +514,7 @@ struct Values {
 #endif
         FullscreenMode::Borderless, FullscreenMode::Exclusive, "fullscreen_mode"};
     RangedSetting<int> aspect_ratio{0, 0, 3, "aspect_ratio"};
-    RangedSetting<int> max_anisotropy{0, 0, 4, "max_anisotropy"};
+    RangedSetting<int> max_anisotropy{0, 0, 5, "max_anisotropy"};
     Setting<bool> use_speed_limit{true, "use_speed_limit"};
     RangedSetting<u16> speed_limit{100, 0, 9999, "speed_limit"};
     Setting<bool> use_disk_shader_cache{true, "use_disk_shader_cache"};
@@ -472,7 +524,7 @@ struct Values {
     Setting<NvdecEmulation> nvdec_emulation{NvdecEmulation::GPU, "nvdec_emulation"};
     Setting<bool> accelerate_astc{true, "accelerate_astc"};
     Setting<bool> use_vsync{true, "use_vsync"};
-    BasicRangedSetting<u16> fps_cap{1000, 1, 1000, "fps_cap"};
+    RangedSetting<u16> fps_cap{1000, 1, 1000, "fps_cap"};
     BasicSetting<bool> disable_fps_limit{false, "disable_fps_limit"};
     RangedSetting<ShaderBackend> shader_backend{ShaderBackend::GLASM, ShaderBackend::GLSL,
                                                 ShaderBackend::SPIRV, "shader_backend"};
@@ -507,25 +559,19 @@ struct Values {
     Setting<bool> enable_accurate_vibrations{false, "enable_accurate_vibrations"};
 
     Setting<bool> motion_enabled{true, "motion_enabled"};
-    BasicSetting<std::string> motion_device{"engine:motion_emu,update_period:100,sensitivity:0.01",
-                                            "motion_device"};
     BasicSetting<std::string> udp_input_servers{"127.0.0.1:26760", "udp_input_servers"};
+    BasicSetting<bool> enable_udp_controller{false, "enable_udp_controller"};
 
     BasicSetting<bool> pause_tas_on_load{true, "pause_tas_on_load"};
     BasicSetting<bool> tas_enable{false, "tas_enable"};
     BasicSetting<bool> tas_loop{false, "tas_loop"};
-    BasicSetting<bool> tas_swap_controllers{true, "tas_swap_controllers"};
 
     BasicSetting<bool> mouse_panning{false, "mouse_panning"};
     BasicRangedSetting<u8> mouse_panning_sensitivity{10, 1, 100, "mouse_panning_sensitivity"};
     BasicSetting<bool> mouse_enabled{false, "mouse_enabled"};
-    std::string mouse_device;
-    MouseButtonsRaw mouse_buttons;
 
     BasicSetting<bool> emulate_analog_keyboard{false, "emulate_analog_keyboard"};
     BasicSetting<bool> keyboard_enabled{false, "keyboard_enabled"};
-    KeyboardKeysRaw keyboard_keys;
-    KeyboardModsRaw keyboard_mods;
 
     BasicSetting<bool> debug_pad_enabled{false, "debug_pad_enabled"};
     ButtonsRaw debug_pad_buttons;
@@ -533,14 +579,11 @@ struct Values {
 
     TouchscreenInput touchscreen;
 
-    BasicSetting<bool> use_touch_from_button{false, "use_touch_from_button"};
     BasicSetting<std::string> touch_device{"min_x:100,min_y:50,max_x:1800,max_y:850",
                                            "touch_device"};
     BasicSetting<int> touch_from_button_map_index{0, "touch_from_button_map"};
     std::vector<TouchFromButtonMap> touch_from_button_maps;
 
-    std::atomic_bool is_device_reload_pending{true};
-
     // Data Storage
     BasicSetting<bool> use_virtual_sd{true, "use_virtual_sd"};
     BasicSetting<bool> gamecard_inserted{false, "gamecard_inserted"};
@@ -561,6 +604,7 @@ struct Values {
     BasicSetting<bool> extended_logging{false, "extended_logging"};
     BasicSetting<bool> use_debug_asserts{false, "use_debug_asserts"};
     BasicSetting<bool> use_auto_stub{false, "use_auto_stub"};
+    BasicSetting<bool> enable_all_controllers{false, "enable_all_controllers"};
 
     // Miscellaneous
     BasicSetting<std::string> log_filter{"*:Info", "log_filter"};
@@ -595,6 +639,8 @@ std::string GetTimeZoneString();
 
 void LogSettings();
 
+void UpdateRescalingInfo();
+
 // Restore the global state of all applicable settings in the Values struct
 void RestoreGlobalState(bool is_powered_on);
 

src/common/settings_input.h

@@ -62,11 +62,22 @@ enum Values : int {
 
 constexpr int STICK_HID_BEGIN = LStick;
 constexpr int STICK_HID_END = NumAnalogs;
-constexpr int NUM_STICKS_HID = NumAnalogs;
 
 extern const std::array<const char*, NumAnalogs> mapping;
 } // namespace NativeAnalog
 
+namespace NativeTrigger {
+enum Values : int {
+    LTrigger,
+    RTrigger,
+
+    NumTriggers,
+};
+
+constexpr int TRIGGER_HID_BEGIN = LTrigger;
+constexpr int TRIGGER_HID_END = NumTriggers;
+} // namespace NativeTrigger
+
 namespace NativeVibration {
 enum Values : int {
     LeftVibrationDevice,
@@ -115,10 +126,20 @@ constexpr int NUM_MOUSE_HID = NumMouseButtons;
 extern const std::array<const char*, NumMouseButtons> mapping;
 } // namespace NativeMouseButton
 
+namespace NativeMouseWheel {
+enum Values {
+    X,
+    Y,
+
+    NumMouseWheels,
+};
+
+extern const std::array<const char*, NumMouseWheels> mapping;
+} // namespace NativeMouseWheel
+
 namespace NativeKeyboard {
 enum Keys {
     None,
-    Error,
 
     A = 4,
     B,
@@ -156,22 +177,22 @@ enum Keys {
     N8,
     N9,
     N0,
-    Enter,
+    Return,
     Escape,
     Backspace,
     Tab,
     Space,
     Minus,
-    Equal,
-    LeftBrace,
-    RightBrace,
-    Backslash,
+    Plus,
+    OpenBracket,
+    CloseBracket,
+    Pipe,
     Tilde,
     Semicolon,
-    Apostrophe,
-    Grave,
+    Quote,
+    Backquote,
     Comma,
-    Dot,
+    Period,
     Slash,
     CapsLockKey,
 
@@ -188,7 +209,7 @@ enum Keys {
     F11,
     F12,
 
-    SystemRequest,
+    PrintScreen,
     ScrollLockKey,
     Pause,
     Insert,
@@ -257,8 +278,18 @@ enum Keys {
     ScrollLockActive,
     KPComma,
 
-    KPLeftParenthesis,
-    KPRightParenthesis,
+    Ro = 0x87,
+    KatakanaHiragana,
+    Yen,
+    Henkan,
+    Muhenkan,
+    NumPadCommaPc98,
+
+    HangulEnglish = 0x90,
+    Hanja,
+    KatakanaKey,
+    HiraganaKey,
+    ZenkakuHankaku,
 
     LeftControlKey = 0xE0,
     LeftShiftKey,
@@ -307,6 +338,8 @@ enum Modifiers {
     CapsLock,
     ScrollLock,
     NumLock,
+    Katakana,
+    Hiragana,
 
     NumKeyboardMods,
 };
@@ -324,11 +357,6 @@ constexpr int NUM_KEYBOARD_MODS_HID = NumKeyboardMods;
 using AnalogsRaw = std::array<std::string, NativeAnalog::NumAnalogs>;
 using ButtonsRaw = std::array<std::string, NativeButton::NumButtons>;
 using MotionsRaw = std::array<std::string, NativeMotion::NumMotions>;
-using VibrationsRaw = std::array<std::string, NativeVibration::NumVibrations>;
-
-using MouseButtonsRaw = std::array<std::string, NativeMouseButton::NumMouseButtons>;
-using KeyboardKeysRaw = std::array<std::string, NativeKeyboard::NumKeyboardKeys>;
-using KeyboardModsRaw = std::array<std::string, NativeKeyboard::NumKeyboardMods>;
 
 constexpr u32 JOYCON_BODY_NEON_RED = 0xFF3C28;
 constexpr u32 JOYCON_BUTTONS_NEON_RED = 0x1E0A0A;
@@ -342,6 +370,11 @@ enum class ControllerType {
     RightJoycon,
     Handheld,
     GameCube,
+    Pokeball,
+    NES,
+    SNES,
+    N64,
+    SegaGenesis,
 };
 
 struct PlayerInput {
@@ -349,7 +382,6 @@ struct PlayerInput {
     ControllerType controller_type;
     ButtonsRaw buttons;
     AnalogsRaw analogs;
-    VibrationsRaw vibrations;
     MotionsRaw motions;
 
     bool vibration_enabled;

src/common/x64/cpu_detect.cpp

@@ -71,9 +71,6 @@ static CPUCaps Detect() {
     else
         caps.manufacturer = Manufacturer::Unknown;
 
-    u32 family = {};
-    u32 model = {};
-
     __cpuid(cpu_id, 0x80000000);
 
     u32 max_ex_fn = cpu_id[0];
@@ -84,15 +81,6 @@ static CPUCaps Detect() {
     // Detect family and other miscellaneous features
     if (max_std_fn >= 1) {
         __cpuid(cpu_id, 0x00000001);
-        family = (cpu_id[0] >> 8) & 0xf;
-        model = (cpu_id[0] >> 4) & 0xf;
-        if (family == 0xf) {
-            family += (cpu_id[0] >> 20) & 0xff;
-        }
-        if (family >= 6) {
-            model += ((cpu_id[0] >> 16) & 0xf) << 4;
-        }
-
         if ((cpu_id[3] >> 25) & 1)
             caps.sse = true;
         if ((cpu_id[3] >> 26) & 1)

src/common/x64/native_clock.cpp

@@ -15,26 +15,26 @@
 namespace Common {
 
 u64 EstimateRDTSCFrequency() {
-    const auto milli_10 = std::chrono::milliseconds{10};
-    // get current time
+    // Discard the first result measuring the rdtsc.
     _mm_mfence();
-    const u64 tscStart = __rdtsc();
-    const auto startTime = std::chrono::high_resolution_clock::now();
-    // wait roughly 3 seconds
-    while (true) {
-        auto milli = std::chrono::duration_cast<std::chrono::milliseconds>(
-            std::chrono::high_resolution_clock::now() - startTime);
-        if (milli.count() >= 3000)
-            break;
-        std::this_thread::sleep_for(milli_10);
-    }
-    const auto endTime = std::chrono::high_resolution_clock::now();
+    __rdtsc();
+    std::this_thread::sleep_for(std::chrono::milliseconds{1});
     _mm_mfence();
-    const u64 tscEnd = __rdtsc();
-    // calculate difference
-    const u64 timer_diff =
-        std::chrono::duration_cast<std::chrono::nanoseconds>(endTime - startTime).count();
-    const u64 tsc_diff = tscEnd - tscStart;
+    __rdtsc();
+
+    // Get the current time.
+    const auto start_time = std::chrono::steady_clock::now();
+    _mm_mfence();
+    const u64 tsc_start = __rdtsc();
+    // Wait for 200 milliseconds.
+    std::this_thread::sleep_for(std::chrono::milliseconds{200});
+    const auto end_time = std::chrono::steady_clock::now();
+    _mm_mfence();
+    const u64 tsc_end = __rdtsc();
+    // Calculate differences.
+    const u64 timer_diff = static_cast<u64>(
+        std::chrono::duration_cast<std::chrono::nanoseconds>(end_time - start_time).count());
+    const u64 tsc_diff = tsc_end - tsc_start;
     const u64 tsc_freq = MultiplyAndDivide64(tsc_diff, 1000000000ULL, timer_diff);
     return tsc_freq;
 }

src/core/CMakeLists.txt

@@ -132,11 +132,23 @@ add_library(core STATIC
     frontend/emu_window.h
     frontend/framebuffer_layout.cpp
     frontend/framebuffer_layout.h
-    frontend/input_interpreter.cpp
-    frontend/input_interpreter.h
-    frontend/input.h
     hardware_interrupt_manager.cpp
     hardware_interrupt_manager.h
+    hid/emulated_console.cpp
+    hid/emulated_console.h
+    hid/emulated_controller.cpp
+    hid/emulated_controller.h
+    hid/emulated_devices.cpp
+    hid/emulated_devices.h
+    hid/hid_core.cpp
+    hid/hid_core.h
+    hid/hid_types.h
+    hid/input_converter.cpp
+    hid/input_converter.h
+    hid/input_interpreter.cpp
+    hid/input_interpreter.h
+    hid/motion_input.cpp
+    hid/motion_input.h
     hle/api_version.h
     hle/ipc.h
     hle/ipc_helpers.h
@@ -167,12 +179,15 @@ add_library(core STATIC
     hle/kernel/k_client_port.h
     hle/kernel/k_client_session.cpp
     hle/kernel/k_client_session.h
+    hle/kernel/k_code_memory.cpp
+    hle/kernel/k_code_memory.h
     hle/kernel/k_condition_variable.cpp
     hle/kernel/k_condition_variable.h
     hle/kernel/k_event.cpp
     hle/kernel/k_event.h
     hle/kernel/k_handle_table.cpp
     hle/kernel/k_handle_table.h
+    hle/kernel/k_light_condition_variable.cpp
     hle/kernel/k_light_condition_variable.h
     hle/kernel/k_light_lock.cpp
     hle/kernel/k_light_lock.h
@@ -225,6 +240,7 @@ add_library(core STATIC
     hle/kernel/k_system_control.h
     hle/kernel/k_thread.cpp
     hle/kernel/k_thread.h
+    hle/kernel/k_thread_queue.cpp
     hle/kernel/k_thread_queue.h
     hle/kernel/k_trace.h
     hle/kernel/k_transfer_memory.cpp
@@ -396,12 +412,15 @@ add_library(core STATIC
     hle/service/glue/glue.h
     hle/service/glue/glue_manager.cpp
     hle/service/glue/glue_manager.h
+    hle/service/glue/notif.cpp
+    hle/service/glue/notif.h
     hle/service/grc/grc.cpp
     hle/service/grc/grc.h
     hle/service/hid/hid.cpp
     hle/service/hid/hid.h
     hle/service/hid/irs.cpp
     hle/service/hid/irs.h
+    hle/service/hid/ring_lifo.h
     hle/service/hid/xcd.cpp
     hle/service/hid/xcd.h
     hle/service/hid/errors.h
@@ -466,6 +485,8 @@ add_library(core STATIC
     hle/service/ns/language.h
     hle/service/ns/ns.cpp
     hle/service/ns/ns.h
+    hle/service/ns/pdm_qry.cpp
+    hle/service/ns/pdm_qry.h
     hle/service/ns/pl_u.cpp
     hle/service/ns/pl_u.h
     hle/service/nvdrv/devices/nvdevice.h

src/core/arm/dynarmic/arm_dynarmic_64.cpp

@@ -86,6 +86,26 @@ public:
                   num_instructions, MemoryReadCode(pc));
     }
 
+    void InstructionCacheOperationRaised(Dynarmic::A64::InstructionCacheOperation op,
+                                         VAddr value) override {
+        switch (op) {
+        case Dynarmic::A64::InstructionCacheOperation::InvalidateByVAToPoU: {
+            static constexpr u64 ICACHE_LINE_SIZE = 64;
+
+            const u64 cache_line_start = value & ~(ICACHE_LINE_SIZE - 1);
+            parent.InvalidateCacheRange(cache_line_start, ICACHE_LINE_SIZE);
+            break;
+        }
+        case Dynarmic::A64::InstructionCacheOperation::InvalidateAllToPoU:
+            parent.ClearInstructionCache();
+            break;
+        case Dynarmic::A64::InstructionCacheOperation::InvalidateAllToPoUInnerSharable:
+        default:
+            LOG_DEBUG(Core_ARM, "Unprocesseed instruction cache operation: {}", op);
+            break;
+        }
+    }
+
     void ExceptionRaised(u64 pc, Dynarmic::A64::Exception exception) override {
         switch (exception) {
         case Dynarmic::A64::Exception::WaitForInterrupt:

src/core/core.cpp

@@ -27,6 +27,7 @@
 #include "core/file_sys/vfs_concat.h"
 #include "core/file_sys/vfs_real.h"
 #include "core/hardware_interrupt_manager.h"
+#include "core/hid/hid_core.h"
 #include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_scheduler.h"
 #include "core/hle/kernel/kernel.h"
@@ -126,7 +127,7 @@ FileSys::VirtualFile GetGameFileFromPath(const FileSys::VirtualFilesystem& vfs,
 
 struct System::Impl {
     explicit Impl(System& system)
-        : kernel{system}, fs_controller{system}, memory{system},
+        : kernel{system}, fs_controller{system}, memory{system}, hid_core{},
           cpu_manager{system}, reporter{system}, applet_manager{system}, time_manager{system} {}
 
     SystemResultStatus Run() {
@@ -391,6 +392,7 @@ struct System::Impl {
     std::unique_ptr<Hardware::InterruptManager> interrupt_manager;
     std::unique_ptr<Core::DeviceMemory> device_memory;
     Core::Memory::Memory memory;
+    Core::HID::HIDCore hid_core;
     CpuManager cpu_manager;
     std::atomic_bool is_powered_on{};
     bool exit_lock = false;
@@ -519,12 +521,6 @@ const ARM_Interface& System::CurrentArmInterface() const {
     return impl->kernel.CurrentPhysicalCore().ArmInterface();
 }
 
-std::size_t System::CurrentCoreIndex() const {
-    std::size_t core = impl->kernel.GetCurrentHostThreadID();
-    ASSERT(core < Core::Hardware::NUM_CPU_CORES);
-    return core;
-}
-
 Kernel::PhysicalCore& System::CurrentPhysicalCore() {
     return impl->kernel.CurrentPhysicalCore();
 }
@@ -615,6 +611,14 @@ const Kernel::KernelCore& System::Kernel() const {
     return impl->kernel;
 }
 
+HID::HIDCore& System::HIDCore() {
+    return impl->hid_core;
+}
+
+const HID::HIDCore& System::HIDCore() const {
+    return impl->hid_core;
+}
+
 Timing::CoreTiming& System::CoreTiming() {
     return impl->core_timing;
 }
@@ -825,8 +829,6 @@ void System::ApplySettings() {
     if (IsPoweredOn()) {
         Renderer().RefreshBaseSettings();
     }
-
-    Service::HID::ReloadInputDevices();
 }
 
 } // namespace Core

src/core/core.h

@@ -89,6 +89,10 @@ namespace Core::Hardware {
 class InterruptManager;
 }
 
+namespace Core::HID {
+class HIDCore;
+}
+
 namespace Core {
 
 class ARM_Interface;
@@ -204,9 +208,6 @@ public:
     /// Gets an ARM interface to the CPU core that is currently running
     [[nodiscard]] const ARM_Interface& CurrentArmInterface() const;
 
-    /// Gets the index of the currently running CPU core
-    [[nodiscard]] std::size_t CurrentCoreIndex() const;
-
     /// Gets the physical core for the CPU core that is currently running
     [[nodiscard]] Kernel::PhysicalCore& CurrentPhysicalCore();
 
@@ -285,6 +286,12 @@ public:
     /// Provides a constant reference to the kernel instance.
     [[nodiscard]] const Kernel::KernelCore& Kernel() const;
 
+    /// Gets a mutable reference to the HID interface.
+    [[nodiscard]] HID::HIDCore& HIDCore();
+
+    /// Gets an immutable reference to the HID interface.
+    [[nodiscard]] const HID::HIDCore& HIDCore() const;
+
     /// Provides a reference to the internal PerfStats instance.
     [[nodiscard]] Core::PerfStats& GetPerfStats();
 

src/core/cpu_manager.cpp

@@ -117,17 +117,18 @@ void CpuManager::MultiCoreRunGuestLoop() {
             physical_core = &kernel.CurrentPhysicalCore();
         }
         system.ExitDynarmicProfile();
-        physical_core->ArmInterface().ClearExclusiveState();
-        kernel.CurrentScheduler()->RescheduleCurrentCore();
+        {
+            Kernel::KScopedDisableDispatch dd(kernel);
+            physical_core->ArmInterface().ClearExclusiveState();
+        }
     }
 }
 
 void CpuManager::MultiCoreRunIdleThread() {
     auto& kernel = system.Kernel();
     while (true) {
-        auto& physical_core = kernel.CurrentPhysicalCore();
-        physical_core.Idle();
-        kernel.CurrentScheduler()->RescheduleCurrentCore();
+        Kernel::KScopedDisableDispatch dd(kernel);
+        kernel.CurrentPhysicalCore().Idle();
     }
 }
 
@@ -135,12 +136,12 @@ void CpuManager::MultiCoreRunSuspendThread() {
     auto& kernel = system.Kernel();
     kernel.CurrentScheduler()->OnThreadStart();
     while (true) {
-        auto core = kernel.GetCurrentHostThreadID();
+        auto core = kernel.CurrentPhysicalCoreIndex();
         auto& scheduler = *kernel.CurrentScheduler();
         Kernel::KThread* current_thread = scheduler.GetCurrentThread();
         Common::Fiber::YieldTo(current_thread->GetHostContext(), *core_data[core].host_context);
         ASSERT(scheduler.ContextSwitchPending());
-        ASSERT(core == kernel.GetCurrentHostThreadID());
+        ASSERT(core == kernel.CurrentPhysicalCoreIndex());
         scheduler.RescheduleCurrentCore();
     }
 }
@@ -346,13 +347,9 @@ void CpuManager::RunThread(std::stop_token stop_token, std::size_t core) {
             sc_sync_first_use = false;
         }
 
-        // Abort if emulation was killed before the session really starts
-        if (!system.IsPoweredOn()) {
-            return;
-        }
-
+        // Emulation was stopped
         if (stop_token.stop_requested()) {
-            break;
+            return;
         }
 
         auto current_thread = system.Kernel().CurrentScheduler()->GetCurrentThread();

src/core/frontend/applets/controller.cpp

@@ -5,16 +5,15 @@
 #include "common/assert.h"
 #include "common/logging/log.h"
 #include "core/frontend/applets/controller.h"
-#include "core/hle/service/hid/controllers/npad.h"
-#include "core/hle/service/hid/hid.h"
-#include "core/hle/service/sm/sm.h"
+#include "core/hid/emulated_controller.h"
+#include "core/hid/hid_core.h"
+#include "core/hid/hid_types.h"
 
 namespace Core::Frontend {
 
 ControllerApplet::~ControllerApplet() = default;
 
-DefaultControllerApplet::DefaultControllerApplet(Service::SM::ServiceManager& service_manager_)
-    : service_manager{service_manager_} {}
+DefaultControllerApplet::DefaultControllerApplet(HID::HIDCore& hid_core_) : hid_core{hid_core_} {}
 
 DefaultControllerApplet::~DefaultControllerApplet() = default;
 
@@ -22,24 +21,20 @@ void DefaultControllerApplet::ReconfigureControllers(std::function<void()> callb
                                                      const ControllerParameters& parameters) const {
     LOG_INFO(Service_HID, "called, deducing the best configuration based on the given parameters!");
 
-    auto& npad =
-        service_manager.GetService<Service::HID::Hid>("hid")
-            ->GetAppletResource()
-            ->GetController<Service::HID::Controller_NPad>(Service::HID::HidController::NPad);
-
-    auto& players = Settings::values.players.GetValue();
-
     const std::size_t min_supported_players =
         parameters.enable_single_mode ? 1 : parameters.min_players;
 
     // Disconnect Handheld first.
-    npad.DisconnectNpadAtIndex(8);
+    auto* handheld = hid_core.GetEmulatedController(Core::HID::NpadIdType::Handheld);
+    handheld->Disconnect();
 
     // Deduce the best configuration based on the input parameters.
-    for (std::size_t index = 0; index < players.size() - 2; ++index) {
+    for (std::size_t index = 0; index < hid_core.available_controllers - 2; ++index) {
+        auto* controller = hid_core.GetEmulatedControllerByIndex(index);
+
         // First, disconnect all controllers regardless of the value of keep_controllers_connected.
         // This makes it easy to connect the desired controllers.
-        npad.DisconnectNpadAtIndex(index);
+        controller->Disconnect();
 
         // Only connect the minimum number of required players.
         if (index >= min_supported_players) {
@@ -49,27 +44,27 @@ void DefaultControllerApplet::ReconfigureControllers(std::function<void()> callb
         // Connect controllers based on the following priority list from highest to lowest priority:
         // Pro Controller -> Dual Joycons -> Left Joycon/Right Joycon -> Handheld
         if (parameters.allow_pro_controller) {
-            npad.AddNewControllerAt(
-                npad.MapSettingsTypeToNPad(Settings::ControllerType::ProController), index);
+            controller->SetNpadStyleIndex(Core::HID::NpadStyleIndex::ProController);
+            controller->Connect();
         } else if (parameters.allow_dual_joycons) {
-            npad.AddNewControllerAt(
-                npad.MapSettingsTypeToNPad(Settings::ControllerType::DualJoyconDetached), index);
+            controller->SetNpadStyleIndex(Core::HID::NpadStyleIndex::JoyconDual);
+            controller->Connect();
         } else if (parameters.allow_left_joycon && parameters.allow_right_joycon) {
             // Assign left joycons to even player indices and right joycons to odd player indices.
             // We do this since Captain Toad Treasure Tracker expects a left joycon for Player 1 and
             // a right Joycon for Player 2 in 2 Player Assist mode.
             if (index % 2 == 0) {
-                npad.AddNewControllerAt(
-                    npad.MapSettingsTypeToNPad(Settings::ControllerType::LeftJoycon), index);
+                controller->SetNpadStyleIndex(Core::HID::NpadStyleIndex::JoyconLeft);
+                controller->Connect();
             } else {
-                npad.AddNewControllerAt(
-                    npad.MapSettingsTypeToNPad(Settings::ControllerType::RightJoycon), index);
+                controller->SetNpadStyleIndex(Core::HID::NpadStyleIndex::JoyconRight);
+                controller->Connect();
             }
         } else if (index == 0 && parameters.enable_single_mode && parameters.allow_handheld &&
                    !Settings::values.use_docked_mode.GetValue()) {
             // We should *never* reach here under any normal circumstances.
-            npad.AddNewControllerAt(npad.MapSettingsTypeToNPad(Settings::ControllerType::Handheld),
-                                    index);
+            controller->SetNpadStyleIndex(Core::HID::NpadStyleIndex::Handheld);
+            controller->Connect();
         } else {
             UNREACHABLE_MSG("Unable to add a new controller based on the given parameters!");
         }

src/core/frontend/applets/controller.h

@@ -8,8 +8,8 @@
 
 #include "common/common_types.h"
 
-namespace Service::SM {
-class ServiceManager;
+namespace Core::HID {
+class HIDCore;
 }
 
 namespace Core::Frontend {
@@ -44,14 +44,14 @@ public:
 
 class DefaultControllerApplet final : public ControllerApplet {
 public:
-    explicit DefaultControllerApplet(Service::SM::ServiceManager& service_manager_);
+    explicit DefaultControllerApplet(HID::HIDCore& hid_core_);
     ~DefaultControllerApplet() override;
 
     void ReconfigureControllers(std::function<void()> callback,
                                 const ControllerParameters& parameters) const override;
 
 private:
-    Service::SM::ServiceManager& service_manager;
+    HID::HIDCore& hid_core;
 };
 
 } // namespace Core::Frontend

src/core/frontend/emu_window.cpp

@@ -3,66 +3,31 @@
 // Refer to the license.txt file included.
 
 #include <mutex>
-#include "common/settings.h"
 #include "core/frontend/emu_window.h"
-#include "core/frontend/input.h"
 
 namespace Core::Frontend {
 
 GraphicsContext::~GraphicsContext() = default;
 
-class EmuWindow::TouchState : public Input::Factory<Input::TouchDevice>,
-                              public std::enable_shared_from_this<TouchState> {
-public:
-    std::unique_ptr<Input::TouchDevice> Create(const Common::ParamPackage&) override {
-        return std::make_unique<Device>(shared_from_this());
-    }
-
-    std::mutex mutex;
-
-    Input::TouchStatus status;
-
-private:
-    class Device : public Input::TouchDevice {
-    public:
-        explicit Device(std::weak_ptr<TouchState>&& touch_state_) : touch_state(touch_state_) {}
-        Input::TouchStatus GetStatus() const override {
-            if (auto state = touch_state.lock()) {
-                std::lock_guard guard{state->mutex};
-                return state->status;
-            }
-            return {};
-        }
-
-    private:
-        std::weak_ptr<TouchState> touch_state;
-    };
-};
-
 EmuWindow::EmuWindow() {
     // TODO: Find a better place to set this.
     config.min_client_area_size =
         std::make_pair(Layout::MinimumSize::Width, Layout::MinimumSize::Height);
     active_config = config;
-    touch_state = std::make_shared<TouchState>();
-    Input::RegisterFactory<Input::TouchDevice>("emu_window", touch_state);
 }
 
-EmuWindow::~EmuWindow() {
-    Input::UnregisterFactory<Input::TouchDevice>("emu_window");
-}
+EmuWindow::~EmuWindow() {}
 
-/**
- * Check if the given x/y coordinates are within the touchpad specified by the framebuffer layout
- * @param layout FramebufferLayout object describing the framebuffer size and screen positions
- * @param framebuffer_x Framebuffer x-coordinate to check
- * @param framebuffer_y Framebuffer y-coordinate to check
- * @return True if the coordinates are within the touchpad, otherwise false
- */
-static bool IsWithinTouchscreen(const Layout::FramebufferLayout& layout, u32 framebuffer_x,
-                                u32 framebuffer_y) {
-    return (framebuffer_y >= layout.screen.top && framebuffer_y < layout.screen.bottom &&
-            framebuffer_x >= layout.screen.left && framebuffer_x < layout.screen.right);
+std::pair<f32, f32> EmuWindow::MapToTouchScreen(u32 framebuffer_x, u32 framebuffer_y) const {
+    std::tie(framebuffer_x, framebuffer_y) = ClipToTouchScreen(framebuffer_x, framebuffer_y);
+    const float x =
+        static_cast<float>(framebuffer_x - framebuffer_layout.screen.left) /
+        static_cast<float>(framebuffer_layout.screen.right - framebuffer_layout.screen.left);
+    const float y =
+        static_cast<float>(framebuffer_y - framebuffer_layout.screen.top) /
+        static_cast<float>(framebuffer_layout.screen.bottom - framebuffer_layout.screen.top);
+
+    return std::make_pair(x, y);
 }
 
 std::pair<u32, u32> EmuWindow::ClipToTouchScreen(u32 new_x, u32 new_y) const {
@@ -75,49 +40,6 @@ std::pair<u32, u32> EmuWindow::ClipToTouchScreen(u32 new_x, u32 new_y) const {
     return std::make_pair(new_x, new_y);
 }
 
-void EmuWindow::TouchPressed(u32 framebuffer_x, u32 framebuffer_y, size_t id) {
-    if (!IsWithinTouchscreen(framebuffer_layout, framebuffer_x, framebuffer_y)) {
-        return;
-    }
-    if (id >= touch_state->status.size()) {
-        return;
-    }
-
-    std::lock_guard guard{touch_state->mutex};
-    const float x =
-        static_cast<float>(framebuffer_x - framebuffer_layout.screen.left) /
-        static_cast<float>(framebuffer_layout.screen.right - framebuffer_layout.screen.left);
-    const float y =
-        static_cast<float>(framebuffer_y - framebuffer_layout.screen.top) /
-        static_cast<float>(framebuffer_layout.screen.bottom - framebuffer_layout.screen.top);
-
-    touch_state->status[id] = std::make_tuple(x, y, true);
-}
-
-void EmuWindow::TouchReleased(size_t id) {
-    if (id >= touch_state->status.size()) {
-        return;
-    }
-    std::lock_guard guard{touch_state->mutex};
-    touch_state->status[id] = std::make_tuple(0.0f, 0.0f, false);
-}
-
-void EmuWindow::TouchMoved(u32 framebuffer_x, u32 framebuffer_y, size_t id) {
-    if (id >= touch_state->status.size()) {
-        return;
-    }
-
-    if (!std::get<2>(touch_state->status[id])) {
-        return;
-    }
-
-    if (!IsWithinTouchscreen(framebuffer_layout, framebuffer_x, framebuffer_y)) {
-        std::tie(framebuffer_x, framebuffer_y) = ClipToTouchScreen(framebuffer_x, framebuffer_y);
-    }
-
-    TouchPressed(framebuffer_x, framebuffer_y, id);
-}
-
 void EmuWindow::UpdateCurrentFramebufferLayout(u32 width, u32 height) {
     NotifyFramebufferLayoutChanged(Layout::DefaultFrameLayout(width, height));
 }

src/core/frontend/emu_window.h

@@ -112,28 +112,6 @@ public:
     /// Returns if window is shown (not minimized)
     virtual bool IsShown() const = 0;
 
-    /**
-     * Signal that a touch pressed event has occurred (e.g. mouse click pressed)
-     * @param framebuffer_x Framebuffer x-coordinate that was pressed
-     * @param framebuffer_y Framebuffer y-coordinate that was pressed
-     * @param id Touch event ID
-     */
-    void TouchPressed(u32 framebuffer_x, u32 framebuffer_y, size_t id);
-
-    /**
-     * Signal that a touch released event has occurred (e.g. mouse click released)
-     * @param id Touch event ID
-     */
-    void TouchReleased(size_t id);
-
-    /**
-     * Signal that a touch movement event has occurred (e.g. mouse was moved over the emu window)
-     * @param framebuffer_x Framebuffer x-coordinate
-     * @param framebuffer_y Framebuffer y-coordinate
-     * @param id Touch event ID
-     */
-    void TouchMoved(u32 framebuffer_x, u32 framebuffer_y, size_t id);
-
     /**
      * Returns currently active configuration.
      * @note Accesses to the returned object need not be consistent because it may be modified in
@@ -212,6 +190,11 @@ protected:
         client_area_height = size.second;
     }
 
+    /**
+     * Converts a screen postion into the equivalent touchscreen position.
+     */
+    std::pair<f32, f32> MapToTouchScreen(u32 framebuffer_x, u32 framebuffer_y) const;
+
     WindowSystemInfo window_info;
 
 private:
@@ -237,9 +220,6 @@ private:
     WindowConfig config;        ///< Internal configuration (changes pending for being applied in
                                 /// ProcessConfigurationChanges)
     WindowConfig active_config; ///< Internal active configuration
-
-    class TouchState;
-    std::shared_ptr<TouchState> touch_state;
 };
 
 } // namespace Core::Frontend

src/core/frontend/framebuffer_layout.cpp

@@ -25,7 +25,12 @@ FramebufferLayout DefaultFrameLayout(u32 width, u32 height) {
     ASSERT(height > 0);
     // The drawing code needs at least somewhat valid values for both screens
     // so just calculate them both even if the other isn't showing.
-    FramebufferLayout res{width, height, false, {}};
+    FramebufferLayout res{
+        .width = width,
+        .height = height,
+        .screen = {},
+        .is_srgb = false,
+    };
 
     const float window_aspect_ratio = static_cast<float>(height) / static_cast<float>(width);
     const float emulation_aspect_ratio = EmulationAspectRatio(
@@ -44,16 +49,13 @@ FramebufferLayout DefaultFrameLayout(u32 width, u32 height) {
     return res;
 }
 
-FramebufferLayout FrameLayoutFromResolutionScale(u32 res_scale) {
-    u32 width, height;
+FramebufferLayout FrameLayoutFromResolutionScale(f32 res_scale) {
+    const bool is_docked = Settings::values.use_docked_mode.GetValue();
+    const u32 screen_width = is_docked ? ScreenDocked::Width : ScreenUndocked::Width;
+    const u32 screen_height = is_docked ? ScreenDocked::Height : ScreenUndocked::Height;
 
-    if (Settings::values.use_docked_mode.GetValue()) {
-        width = ScreenDocked::Width * res_scale;
-        height = ScreenDocked::Height * res_scale;
-    } else {
-        width = ScreenUndocked::Width * res_scale;
-        height = ScreenUndocked::Height * res_scale;
-    }
+    const u32 width = static_cast<u32>(static_cast<f32>(screen_width) * res_scale);
+    const u32 height = static_cast<u32>(static_cast<f32>(screen_height) * res_scale);
 
     return DefaultFrameLayout(width, height);
 }

src/core/frontend/framebuffer_layout.h

@@ -35,17 +35,8 @@ enum class AspectRatio {
 struct FramebufferLayout {
     u32 width{ScreenUndocked::Width};
     u32 height{ScreenUndocked::Height};
-    bool is_srgb{};
-
     Common::Rectangle<u32> screen;
-
-    /**
-     * Returns the ration of pixel size of the screen, compared to the native size of the undocked
-     * Switch screen.
-     */
-    float GetScalingRatio() const {
-        return static_cast<float>(screen.GetWidth()) / ScreenUndocked::Width;
-    }
+    bool is_srgb{};
 };
 
 /**
@@ -60,7 +51,7 @@ FramebufferLayout DefaultFrameLayout(u32 width, u32 height);
  * Convenience method to get frame layout by resolution scale
  * @param res_scale resolution scale factor
  */
-FramebufferLayout FrameLayoutFromResolutionScale(u32 res_scale);
+FramebufferLayout FrameLayoutFromResolutionScale(f32 res_scale);
 
 /**
  * Convenience method to determine emulation aspect ratio

src/core/frontend/input.h

@@ -1,217 +0,0 @@
-// Copyright 2017 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <functional>
-#include <memory>
-#include <string>
-#include <tuple>
-#include <unordered_map>
-#include <utility>
-#include "common/logging/log.h"
-#include "common/param_package.h"
-#include "common/quaternion.h"
-#include "common/vector_math.h"
-
-namespace Input {
-
-enum class AnalogDirection : u8 {
-    RIGHT,
-    LEFT,
-    UP,
-    DOWN,
-};
-struct AnalogProperties {
-    float deadzone;
-    float range;
-    float threshold;
-};
-template <typename StatusType>
-struct InputCallback {
-    std::function<void(StatusType)> on_change;
-};
-
-/// An abstract class template for an input device (a button, an analog input, etc.).
-template <typename StatusType>
-class InputDevice {
-public:
-    virtual ~InputDevice() = default;
-    virtual StatusType GetStatus() const {
-        return {};
-    }
-    virtual StatusType GetRawStatus() const {
-        return GetStatus();
-    }
-    virtual AnalogProperties GetAnalogProperties() const {
-        return {};
-    }
-    virtual bool GetAnalogDirectionStatus([[maybe_unused]] AnalogDirection direction) const {
-        return {};
-    }
-    virtual bool SetRumblePlay([[maybe_unused]] f32 amp_low, [[maybe_unused]] f32 freq_low,
-                               [[maybe_unused]] f32 amp_high,
-                               [[maybe_unused]] f32 freq_high) const {
-        return {};
-    }
-    void SetCallback(InputCallback<StatusType> callback_) {
-        callback = std::move(callback_);
-    }
-    void TriggerOnChange() {
-        if (callback.on_change) {
-            callback.on_change(GetStatus());
-        }
-    }
-
-private:
-    InputCallback<StatusType> callback;
-};
-
-/// An abstract class template for a factory that can create input devices.
-template <typename InputDeviceType>
-class Factory {
-public:
-    virtual ~Factory() = default;
-    virtual std::unique_ptr<InputDeviceType> Create(const Common::ParamPackage&) = 0;
-};
-
-namespace Impl {
-
-template <typename InputDeviceType>
-using FactoryListType = std::unordered_map<std::string, std::shared_ptr<Factory<InputDeviceType>>>;
-
-template <typename InputDeviceType>
-struct FactoryList {
-    static FactoryListType<InputDeviceType> list;
-};
-
-template <typename InputDeviceType>
-FactoryListType<InputDeviceType> FactoryList<InputDeviceType>::list;
-
-} // namespace Impl
-
-/**
- * Registers an input device factory.
- * @tparam InputDeviceType the type of input devices the factory can create
- * @param name the name of the factory. Will be used to match the "engine" parameter when creating
- *     a device
- * @param factory the factory object to register
- */
-template <typename InputDeviceType>
-void RegisterFactory(const std::string& name, std::shared_ptr<Factory<InputDeviceType>> factory) {
-    auto pair = std::make_pair(name, std::move(factory));
-    if (!Impl::FactoryList<InputDeviceType>::list.insert(std::move(pair)).second) {
-        LOG_ERROR(Input, "Factory '{}' already registered", name);
-    }
-}
-
-/**
- * Unregisters an input device factory.
- * @tparam InputDeviceType the type of input devices the factory can create
- * @param name the name of the factory to unregister
- */
-template <typename InputDeviceType>
-void UnregisterFactory(const std::string& name) {
-    if (Impl::FactoryList<InputDeviceType>::list.erase(name) == 0) {
-        LOG_ERROR(Input, "Factory '{}' not registered", name);
-    }
-}
-
-/**
- * Create an input device from given paramters.
- * @tparam InputDeviceType the type of input devices to create
- * @param params a serialized ParamPackage string contains all parameters for creating the device
- */
-template <typename InputDeviceType>
-std::unique_ptr<InputDeviceType> CreateDevice(const std::string& params) {
-    const Common::ParamPackage package(params);
-    const std::string engine = package.Get("engine", "null");
-    const auto& factory_list = Impl::FactoryList<InputDeviceType>::list;
-    const auto pair = factory_list.find(engine);
-    if (pair == factory_list.end()) {
-        if (engine != "null") {
-            LOG_ERROR(Input, "Unknown engine name: {}", engine);
-        }
-        return std::make_unique<InputDeviceType>();
-    }
-    return pair->second->Create(package);
-}
-
-/**
- * A button device is an input device that returns bool as status.
- * true for pressed; false for released.
- */
-using ButtonDevice = InputDevice<bool>;
-
-/**
- * An analog device is an input device that returns a tuple of x and y coordinates as status. The
- * coordinates are within the unit circle. x+ is defined as right direction, and y+ is defined as up
- * direction
- */
-using AnalogDevice = InputDevice<std::tuple<float, float>>;
-
-/**
- * A vibration device is an input device that returns an unsigned byte as status.
- * It represents whether the vibration device supports vibration or not.
- * If the status returns 1, it supports vibration. Otherwise, it does not support vibration.
- */
-using VibrationDevice = InputDevice<u8>;
-
-/**
- * A motion status is an object that returns a tuple of accelerometer state vector,
- * gyroscope state vector, rotation state vector, orientation state matrix and quaterion state
- * vector.
- *
- * For both 3D vectors:
- *   x+ is the same direction as RIGHT on D-pad.
- *   y+ is normal to the touch screen, pointing outward.
- *   z+ is the same direction as UP on D-pad.
- *
- * For accelerometer state vector
- *   Units: g (gravitational acceleration)
- *
- * For gyroscope state vector:
- *   Orientation is determined by right-hand rule.
- *   Units: deg/sec
- *
- * For rotation state vector
- *   Units: rotations
- *
- * For orientation state matrix
- *   x vector
- *   y vector
- *   z vector
- *
- * For quaternion state vector
- *   xyz vector
- *   w float
- */
-using MotionStatus = std::tuple<Common::Vec3<float>, Common::Vec3<float>, Common::Vec3<float>,
-                                std::array<Common::Vec3f, 3>, Common::Quaternion<f32>>;
-
-/**
- * A motion device is an input device that returns a motion status object
- */
-using MotionDevice = InputDevice<MotionStatus>;
-
-/**
- * A touch status is an object that returns an array of 16 tuple elements of two floats and a bool.
- * The floats are x and y coordinates in the range 0.0 - 1.0, and the bool indicates whether it is
- * pressed.
- */
-using TouchStatus = std::array<std::tuple<float, float, bool>, 16>;
-
-/**
- * A touch device is an input device that returns a touch status object
- */
-using TouchDevice = InputDevice<TouchStatus>;
-
-/**
- * A mouse device is an input device that returns a tuple of two floats and four ints.
- * The first two floats are X and Y device coordinates of the mouse (from 0-1).
- * The s32s are the mouse wheel.
- */
-using MouseDevice = InputDevice<std::tuple<float, float, s32, s32>>;
-
-} // namespace Input

src/core/hid/emulated_console.cpp

@@ -0,0 +1,232 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include "common/settings.h"
+#include "core/hid/emulated_console.h"
+#include "core/hid/input_converter.h"
+
+namespace Core::HID {
+EmulatedConsole::EmulatedConsole() = default;
+
+EmulatedConsole::~EmulatedConsole() = default;
+
+void EmulatedConsole::ReloadFromSettings() {
+    // Using first motion device from player 1. No need to assign any unique config at the moment
+    const auto& player = Settings::values.players.GetValue()[0];
+    motion_params = Common::ParamPackage(player.motions[0]);
+
+    ReloadInput();
+}
+
+void EmulatedConsole::SetTouchParams() {
+    // TODO(german77): Support any number of fingers
+    std::size_t index = 0;
+
+    // Hardcode mouse, touchscreen and cemuhook parameters
+    if (!Settings::values.mouse_enabled) {
+        // We can't use mouse as touch if native mouse is enabled
+        touch_params[index++] = Common::ParamPackage{"engine:mouse,axis_x:10,axis_y:11,button:0"};
+    }
+    touch_params[index++] = Common::ParamPackage{"engine:touch,axis_x:0,axis_y:1,button:0"};
+    touch_params[index++] = Common::ParamPackage{"engine:touch,axis_x:2,axis_y:3,button:1"};
+    touch_params[index++] =
+        Common::ParamPackage{"engine:cemuhookudp,axis_x:17,axis_y:18,button:65536"};
+    touch_params[index++] =
+        Common::ParamPackage{"engine:cemuhookudp,axis_x:19,axis_y:20,button:131072"};
+
+    const auto button_index =
+        static_cast<u64>(Settings::values.touch_from_button_map_index.GetValue());
+    const auto& touch_buttons = Settings::values.touch_from_button_maps[button_index].buttons;
+
+    // Map the rest of the fingers from touch from button configuration
+    for (const auto& config_entry : touch_buttons) {
+        if (index >= touch_params.size()) {
+            continue;
+        }
+        Common::ParamPackage params{config_entry};
+        Common::ParamPackage touch_button_params;
+        const int x = params.Get("x", 0);
+        const int y = params.Get("y", 0);
+        params.Erase("x");
+        params.Erase("y");
+        touch_button_params.Set("engine", "touch_from_button");
+        touch_button_params.Set("button", params.Serialize());
+        touch_button_params.Set("x", x);
+        touch_button_params.Set("y", y);
+        touch_button_params.Set("touch_id", static_cast<int>(index));
+        touch_params[index] = touch_button_params;
+        index++;
+    }
+}
+
+void EmulatedConsole::ReloadInput() {
+    // If you load any device here add the equivalent to the UnloadInput() function
+    SetTouchParams();
+
+    motion_devices = Common::Input::CreateDevice<Common::Input::InputDevice>(motion_params);
+    if (motion_devices) {
+        motion_devices->SetCallback({
+            .on_change =
+                [this](const Common::Input::CallbackStatus& callback) { SetMotion(callback); },
+        });
+    }
+
+    // Unique index for identifying touch device source
+    std::size_t index = 0;
+    for (auto& touch_device : touch_devices) {
+        touch_device = Common::Input::CreateDevice<Common::Input::InputDevice>(touch_params[index]);
+        if (!touch_device) {
+            continue;
+        }
+        touch_device->SetCallback({
+            .on_change =
+                [this, index](const Common::Input::CallbackStatus& callback) {
+                    SetTouch(callback, index);
+                },
+        });
+        index++;
+    }
+}
+
+void EmulatedConsole::UnloadInput() {
+    motion_devices.reset();
+    for (auto& touch : touch_devices) {
+        touch.reset();
+    }
+}
+
+void EmulatedConsole::EnableConfiguration() {
+    is_configuring = true;
+    SaveCurrentConfig();
+}
+
+void EmulatedConsole::DisableConfiguration() {
+    is_configuring = false;
+}
+
+bool EmulatedConsole::IsConfiguring() const {
+    return is_configuring;
+}
+
+void EmulatedConsole::SaveCurrentConfig() {
+    if (!is_configuring) {
+        return;
+    }
+}
+
+void EmulatedConsole::RestoreConfig() {
+    if (!is_configuring) {
+        return;
+    }
+    ReloadFromSettings();
+}
+
+Common::ParamPackage EmulatedConsole::GetMotionParam() const {
+    return motion_params;
+}
+
+void EmulatedConsole::SetMotionParam(Common::ParamPackage param) {
+    motion_params = param;
+    ReloadInput();
+}
+
+void EmulatedConsole::SetMotion(const Common::Input::CallbackStatus& callback) {
+    std::lock_guard lock{mutex};
+    auto& raw_status = console.motion_values.raw_status;
+    auto& emulated = console.motion_values.emulated;
+
+    raw_status = TransformToMotion(callback);
+    emulated.SetAcceleration(Common::Vec3f{
+        raw_status.accel.x.value,
+        raw_status.accel.y.value,
+        raw_status.accel.z.value,
+    });
+    emulated.SetGyroscope(Common::Vec3f{
+        raw_status.gyro.x.value,
+        raw_status.gyro.y.value,
+        raw_status.gyro.z.value,
+    });
+    emulated.UpdateRotation(raw_status.delta_timestamp);
+    emulated.UpdateOrientation(raw_status.delta_timestamp);
+
+    if (is_configuring) {
+        TriggerOnChange(ConsoleTriggerType::Motion);
+        return;
+    }
+
+    auto& motion = console.motion_state;
+    motion.accel = emulated.GetAcceleration();
+    motion.gyro = emulated.GetGyroscope();
+    motion.rotation = emulated.GetGyroscope();
+    motion.orientation = emulated.GetOrientation();
+    motion.quaternion = emulated.GetQuaternion();
+    motion.is_at_rest = !emulated.IsMoving(motion_sensitivity);
+
+    TriggerOnChange(ConsoleTriggerType::Motion);
+}
+
+void EmulatedConsole::SetTouch(const Common::Input::CallbackStatus& callback, std::size_t index) {
+    if (index >= console.touch_values.size()) {
+        return;
+    }
+    std::lock_guard lock{mutex};
+
+    console.touch_values[index] = TransformToTouch(callback);
+
+    if (is_configuring) {
+        TriggerOnChange(ConsoleTriggerType::Touch);
+        return;
+    }
+
+    // TODO(german77): Remap touch id in sequential order
+    console.touch_state[index] = {
+        .position = {console.touch_values[index].x.value, console.touch_values[index].y.value},
+        .id = static_cast<u32>(console.touch_values[index].id),
+        .pressed = console.touch_values[index].pressed.value,
+    };
+
+    TriggerOnChange(ConsoleTriggerType::Touch);
+}
+
+ConsoleMotionValues EmulatedConsole::GetMotionValues() const {
+    return console.motion_values;
+}
+
+TouchValues EmulatedConsole::GetTouchValues() const {
+    return console.touch_values;
+}
+
+ConsoleMotion EmulatedConsole::GetMotion() const {
+    return console.motion_state;
+}
+
+TouchFingerState EmulatedConsole::GetTouch() const {
+    return console.touch_state;
+}
+
+void EmulatedConsole::TriggerOnChange(ConsoleTriggerType type) {
+    for (const auto& poller_pair : callback_list) {
+        const ConsoleUpdateCallback& poller = poller_pair.second;
+        if (poller.on_change) {
+            poller.on_change(type);
+        }
+    }
+}
+
+int EmulatedConsole::SetCallback(ConsoleUpdateCallback update_callback) {
+    std::lock_guard lock{mutex};
+    callback_list.insert_or_assign(last_callback_key, update_callback);
+    return last_callback_key++;
+}
+
+void EmulatedConsole::DeleteCallback(int key) {
+    std::lock_guard lock{mutex};
+    const auto& iterator = callback_list.find(key);
+    if (iterator == callback_list.end()) {
+        LOG_ERROR(Input, "Tried to delete non-existent callback {}", key);
+        return;
+    }
+    callback_list.erase(iterator);
+}
+} // namespace Core::HID

src/core/hid/emulated_console.h

@@ -0,0 +1,190 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+#include "common/common_types.h"
+#include "common/input.h"
+#include "common/param_package.h"
+#include "common/point.h"
+#include "common/quaternion.h"
+#include "common/vector_math.h"
+#include "core/hid/hid_types.h"
+#include "core/hid/motion_input.h"
+
+namespace Core::HID {
+
+struct ConsoleMotionInfo {
+    Common::Input::MotionStatus raw_status{};
+    MotionInput emulated{};
+};
+
+using ConsoleMotionDevices = std::unique_ptr<Common::Input::InputDevice>;
+using TouchDevices = std::array<std::unique_ptr<Common::Input::InputDevice>, 16>;
+
+using ConsoleMotionParams = Common::ParamPackage;
+using TouchParams = std::array<Common::ParamPackage, 16>;
+
+using ConsoleMotionValues = ConsoleMotionInfo;
+using TouchValues = std::array<Common::Input::TouchStatus, 16>;
+
+struct TouchFinger {
+    u64 last_touch{};
+    Common::Point<float> position{};
+    u32 id{};
+    TouchAttribute attribute{};
+    bool pressed{};
+};
+
+// Contains all motion related data that is used on the services
+struct ConsoleMotion {
+    Common::Vec3f accel{};
+    Common::Vec3f gyro{};
+    Common::Vec3f rotation{};
+    std::array<Common::Vec3f, 3> orientation{};
+    Common::Quaternion<f32> quaternion{};
+    bool is_at_rest{};
+};
+
+using TouchFingerState = std::array<TouchFinger, 16>;
+
+struct ConsoleStatus {
+    // Data from input_common
+    ConsoleMotionValues motion_values{};
+    TouchValues touch_values{};
+
+    // Data for HID services
+    ConsoleMotion motion_state{};
+    TouchFingerState touch_state{};
+};
+
+enum class ConsoleTriggerType {
+    Motion,
+    Touch,
+    All,
+};
+
+struct ConsoleUpdateCallback {
+    std::function<void(ConsoleTriggerType)> on_change;
+};
+
+class EmulatedConsole {
+public:
+    /**
+     * Contains all input data within the emulated switch console tablet such as touch and motion
+     */
+    explicit EmulatedConsole();
+    ~EmulatedConsole();
+
+    YUZU_NON_COPYABLE(EmulatedConsole);
+    YUZU_NON_MOVEABLE(EmulatedConsole);
+
+    /// Removes all callbacks created from input devices
+    void UnloadInput();
+
+    /**
+     * Sets the emulated console into configuring mode
+     * This prevents the modification of the HID state of the emulated console by input commands
+     */
+    void EnableConfiguration();
+
+    /// Returns the emulated console into normal mode, allowing the modification of the HID state
+    void DisableConfiguration();
+
+    /// Returns true if the emulated console is in configuring mode
+    bool IsConfiguring() const;
+
+    /// Reload all input devices
+    void ReloadInput();
+
+    /// Overrides current mapped devices with the stored configuration and reloads all input devices
+    void ReloadFromSettings();
+
+    /// Saves the current mapped configuration
+    void SaveCurrentConfig();
+
+    /// Reverts any mapped changes made that weren't saved
+    void RestoreConfig();
+
+    // Returns the current mapped motion device
+    Common::ParamPackage GetMotionParam() const;
+
+    /**
+     * Updates the current mapped motion device
+     * @param param ParamPackage with controller data to be mapped
+     */
+    void SetMotionParam(Common::ParamPackage param);
+
+    /// Returns the latest status of motion input from the console with parameters
+    ConsoleMotionValues GetMotionValues() const;
+
+    /// Returns the latest status of touch input from the console with parameters
+    TouchValues GetTouchValues() const;
+
+    /// Returns the latest status of motion input from the console
+    ConsoleMotion GetMotion() const;
+
+    /// Returns the latest status of touch input from the console
+    TouchFingerState GetTouch() const;
+
+    /**
+     * Adds a callback to the list of events
+     * @param update_callback A ConsoleUpdateCallback that will be triggered
+     * @return an unique key corresponding to the callback index in the list
+     */
+    int SetCallback(ConsoleUpdateCallback update_callback);
+
+    /**
+     * Removes a callback from the list stopping any future events to this object
+     * @param key Key corresponding to the callback index in the list
+     */
+    void DeleteCallback(int key);
+
+private:
+    /// Creates and stores the touch params
+    void SetTouchParams();
+
+    /**
+     * Updates the motion status of the console
+     * @param callback A CallbackStatus containing gyro and accelerometer data
+     */
+    void SetMotion(const Common::Input::CallbackStatus& callback);
+
+    /**
+     * Updates the touch status of the console
+     * @param callback A CallbackStatus containing the touch position
+     * @param index Finger ID to be updated
+     */
+    void SetTouch(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Triggers a callback that something has changed on the console status
+     * @param type Input type of the event to trigger
+     */
+    void TriggerOnChange(ConsoleTriggerType type);
+
+    bool is_configuring{false};
+    f32 motion_sensitivity{0.01f};
+
+    ConsoleMotionParams motion_params;
+    TouchParams touch_params;
+
+    ConsoleMotionDevices motion_devices;
+    TouchDevices touch_devices;
+
+    mutable std::mutex mutex;
+    std::unordered_map<int, ConsoleUpdateCallback> callback_list;
+    int last_callback_key = 0;
+
+    // Stores the current status of all console input
+    ConsoleStatus console;
+};
+
+} // namespace Core::HID

src/core/hid/emulated_controller.h

@@ -0,0 +1,411 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+#include "common/common_types.h"
+#include "common/input.h"
+#include "common/param_package.h"
+#include "common/point.h"
+#include "common/quaternion.h"
+#include "common/settings.h"
+#include "common/vector_math.h"
+#include "core/hid/hid_types.h"
+#include "core/hid/motion_input.h"
+
+namespace Core::HID {
+const std::size_t max_emulated_controllers = 2;
+struct ControllerMotionInfo {
+    Common::Input::MotionStatus raw_status{};
+    MotionInput emulated{};
+};
+
+using ButtonDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, Settings::NativeButton::NumButtons>;
+using StickDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, Settings::NativeAnalog::NumAnalogs>;
+using ControllerMotionDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, Settings::NativeMotion::NumMotions>;
+using TriggerDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, Settings::NativeTrigger::NumTriggers>;
+using BatteryDevices =
+    std::array<std::unique_ptr<Common::Input::InputDevice>, max_emulated_controllers>;
+using OutputDevices =
+    std::array<std::unique_ptr<Common::Input::OutputDevice>, max_emulated_controllers>;
+
+using ButtonParams = std::array<Common::ParamPackage, Settings::NativeButton::NumButtons>;
+using StickParams = std::array<Common::ParamPackage, Settings::NativeAnalog::NumAnalogs>;
+using ControllerMotionParams = std::array<Common::ParamPackage, Settings::NativeMotion::NumMotions>;
+using TriggerParams = std::array<Common::ParamPackage, Settings::NativeTrigger::NumTriggers>;
+using BatteryParams = std::array<Common::ParamPackage, max_emulated_controllers>;
+using OutputParams = std::array<Common::ParamPackage, max_emulated_controllers>;
+
+using ButtonValues = std::array<Common::Input::ButtonStatus, Settings::NativeButton::NumButtons>;
+using SticksValues = std::array<Common::Input::StickStatus, Settings::NativeAnalog::NumAnalogs>;
+using TriggerValues =
+    std::array<Common::Input::TriggerStatus, Settings::NativeTrigger::NumTriggers>;
+using ControllerMotionValues = std::array<ControllerMotionInfo, Settings::NativeMotion::NumMotions>;
+using ColorValues = std::array<Common::Input::BodyColorStatus, max_emulated_controllers>;
+using BatteryValues = std::array<Common::Input::BatteryStatus, max_emulated_controllers>;
+using VibrationValues = std::array<Common::Input::VibrationStatus, max_emulated_controllers>;
+
+struct AnalogSticks {
+    AnalogStickState left{};
+    AnalogStickState right{};
+};
+
+struct ControllerColors {
+    NpadControllerColor fullkey{};
+    NpadControllerColor left{};
+    NpadControllerColor right{};
+};
+
+struct BatteryLevelState {
+    NpadPowerInfo dual{};
+    NpadPowerInfo left{};
+    NpadPowerInfo right{};
+};
+
+struct ControllerMotion {
+    Common::Vec3f accel{};
+    Common::Vec3f gyro{};
+    Common::Vec3f rotation{};
+    std::array<Common::Vec3f, 3> orientation{};
+    bool is_at_rest{};
+};
+
+enum EmulatedDeviceIndex : u8 {
+    LeftIndex,
+    RightIndex,
+    DualIndex,
+    AllDevices,
+};
+
+using MotionState = std::array<ControllerMotion, 2>;
+
+struct ControllerStatus {
+    // Data from input_common
+    ButtonValues button_values{};
+    SticksValues stick_values{};
+    ControllerMotionValues motion_values{};
+    TriggerValues trigger_values{};
+    ColorValues color_values{};
+    BatteryValues battery_values{};
+    VibrationValues vibration_values{};
+
+    // Data for HID serices
+    NpadButtonState npad_button_state{};
+    DebugPadButton debug_pad_button_state{};
+    AnalogSticks analog_stick_state{};
+    MotionState motion_state{};
+    NpadGcTriggerState gc_trigger_state{};
+    ControllerColors colors_state{};
+    BatteryLevelState battery_state{};
+};
+
+enum class ControllerTriggerType {
+    Button,
+    Stick,
+    Trigger,
+    Motion,
+    Color,
+    Battery,
+    Vibration,
+    Connected,
+    Disconnected,
+    Type,
+    All,
+};
+
+struct ControllerUpdateCallback {
+    std::function<void(ControllerTriggerType)> on_change;
+    bool is_npad_service;
+};
+
+class EmulatedController {
+public:
+    /**
+     * Contains all input data (buttons, joysticks, vibration, and motion) within this controller.
+     * @param npad_id_type npad id type for this specific controller
+     */
+    explicit EmulatedController(NpadIdType npad_id_type_);
+    ~EmulatedController();
+
+    YUZU_NON_COPYABLE(EmulatedController);
+    YUZU_NON_MOVEABLE(EmulatedController);
+
+    /// Converts the controller type from settings to npad type
+    static NpadStyleIndex MapSettingsTypeToNPad(Settings::ControllerType type);
+
+    /// Converts npad type to the equivalent of controller type from settings
+    static Settings::ControllerType MapNPadToSettingsType(NpadStyleIndex type);
+
+    /// Gets the NpadIdType for this controller
+    NpadIdType GetNpadIdType() const;
+
+    /// Sets the NpadStyleIndex for this controller
+    void SetNpadStyleIndex(NpadStyleIndex npad_type_);
+
+    /**
+     * Gets the NpadStyleIndex for this controller
+     * @param get_temporary_value If true tmp_npad_type will be returned
+     * @return NpadStyleIndex set on the controller
+     */
+    NpadStyleIndex GetNpadStyleIndex(bool get_temporary_value = false) const;
+
+    /**
+     * Sets the supported controller types. Disconnects the controller if current type is not
+     * supported
+     * @param supported_styles bitflag with supported types
+     */
+    void SetSupportedNpadStyleTag(NpadStyleTag supported_styles);
+
+    /// Sets the connected status to true
+    void Connect();
+
+    /// Sets the connected status to false
+    void Disconnect();
+
+    /**
+     * Is the emulated connected
+     * @param get_temporary_value If true tmp_is_connected will be returned
+     * @return true if the controller has the connected status
+     */
+    bool IsConnected(bool get_temporary_value = false) const;
+
+    /// Returns true if vibration is enabled
+    bool IsVibrationEnabled() const;
+
+    /// Removes all callbacks created from input devices
+    void UnloadInput();
+
+    /**
+     * Sets the emulated controller into configuring mode
+     * This prevents the modification of the HID state of the emulated controller by input commands
+     */
+    void EnableConfiguration();
+
+    /// Returns the emulated controller into normal mode, allowing the modification of the HID state
+    void DisableConfiguration();
+
+    /// Returns true if the emulated controller is in configuring mode
+    bool IsConfiguring() const;
+
+    /// Reload all input devices
+    void ReloadInput();
+
+    /// Overrides current mapped devices with the stored configuration and reloads all input devices
+    void ReloadFromSettings();
+
+    /// Saves the current mapped configuration
+    void SaveCurrentConfig();
+
+    /// Reverts any mapped changes made that weren't saved
+    void RestoreConfig();
+
+    /// Returns a vector of mapped devices from the mapped button and stick parameters
+    std::vector<Common::ParamPackage> GetMappedDevices(EmulatedDeviceIndex device_index) const;
+
+    // Returns the current mapped button device
+    Common::ParamPackage GetButtonParam(std::size_t index) const;
+
+    // Returns the current mapped stick device
+    Common::ParamPackage GetStickParam(std::size_t index) const;
+
+    // Returns the current mapped motion device
+    Common::ParamPackage GetMotionParam(std::size_t index) const;
+
+    /**
+     * Updates the current mapped button device
+     * @param param ParamPackage with controller data to be mapped
+     */
+    void SetButtonParam(std::size_t index, Common::ParamPackage param);
+
+    /**
+     * Updates the current mapped stick device
+     * @param param ParamPackage with controller data to be mapped
+     */
+    void SetStickParam(std::size_t index, Common::ParamPackage param);
+
+    /**
+     * Updates the current mapped motion device
+     * @param param ParamPackage with controller data to be mapped
+     */
+    void SetMotionParam(std::size_t index, Common::ParamPackage param);
+
+    /// Returns the latest button status from the controller with parameters
+    ButtonValues GetButtonsValues() const;
+
+    /// Returns the latest analog stick status from the controller with parameters
+    SticksValues GetSticksValues() const;
+
+    /// Returns the latest trigger status from the controller with parameters
+    TriggerValues GetTriggersValues() const;
+
+    /// Returns the latest motion status from the controller with parameters
+    ControllerMotionValues GetMotionValues() const;
+
+    /// Returns the latest color status from the controller with parameters
+    ColorValues GetColorsValues() const;
+
+    /// Returns the latest battery status from the controller with parameters
+    BatteryValues GetBatteryValues() const;
+
+    /// Returns the latest status of button input for the npad service
+    NpadButtonState GetNpadButtons() const;
+
+    /// Returns the latest status of button input for the debug pad service
+    DebugPadButton GetDebugPadButtons() const;
+
+    /// Returns the latest status of stick input from the mouse
+    AnalogSticks GetSticks() const;
+
+    /// Returns the latest status of trigger input from the mouse
+    NpadGcTriggerState GetTriggers() const;
+
+    /// Returns the latest status of motion input from the mouse
+    MotionState GetMotions() const;
+
+    /// Returns the latest color value from the controller
+    ControllerColors GetColors() const;
+
+    /// Returns the latest battery status from the controller
+    BatteryLevelState GetBattery() const;
+
+    /**
+     * Sends a specific vibration to the output device
+     * @return returns true if vibration had no errors
+     */
+    bool SetVibration(std::size_t device_index, VibrationValue vibration);
+
+    /**
+     * Sends a small vibration to the output device
+     * @return returns true if SetVibration was successfull
+     */
+    bool TestVibration(std::size_t device_index);
+
+    /// Returns the led pattern corresponding to this emulated controller
+    LedPattern GetLedPattern() const;
+
+    /// Asks the output device to change the player led pattern
+    void SetLedPattern();
+
+    /**
+     * Adds a callback to the list of events
+     * @param update_callback A ConsoleUpdateCallback that will be triggered
+     * @return an unique key corresponding to the callback index in the list
+     */
+    int SetCallback(ControllerUpdateCallback update_callback);
+
+    /**
+     * Removes a callback from the list stopping any future events to this object
+     * @param key Key corresponding to the callback index in the list
+     */
+    void DeleteCallback(int key);
+
+private:
+    /// creates input devices from params
+    void LoadDevices();
+
+    /// Set the params for TAS devices
+    void LoadTASParams();
+
+    /**
+     * Checks the current controller type against the supported_style_tag
+     * @return true if the controller is supported
+     */
+    bool IsControllerSupported() const;
+
+    /**
+     * Updates the button status of the controller
+     * @param callback A CallbackStatus containing the button status
+     * @param index Button ID of the to be updated
+     */
+    void SetButton(const Common::Input::CallbackStatus& callback, std::size_t index,
+                   Common::UUID uuid);
+
+    /**
+     * Updates the analog stick status of the controller
+     * @param callback A CallbackStatus containing the analog stick status
+     * @param index stick ID of the to be updated
+     */
+    void SetStick(const Common::Input::CallbackStatus& callback, std::size_t index,
+                  Common::UUID uuid);
+
+    /**
+     * Updates the trigger status of the controller
+     * @param callback A CallbackStatus containing the trigger status
+     * @param index trigger ID of the to be updated
+     */
+    void SetTrigger(const Common::Input::CallbackStatus& callback, std::size_t index,
+                    Common::UUID uuid);
+
+    /**
+     * Updates the motion status of the controller
+     * @param callback A CallbackStatus containing gyro and accelerometer data
+     * @param index motion ID of the to be updated
+     */
+    void SetMotion(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Updates the battery status of the controller
+     * @param callback A CallbackStatus containing the battery status
+     * @param index Button ID of the to be updated
+     */
+    void SetBattery(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Triggers a callback that something has changed on the controller status
+     * @param type Input type of the event to trigger
+     * @param is_service_update indicates if this event should only be sent to HID services
+     */
+    void TriggerOnChange(ControllerTriggerType type, bool is_service_update);
+
+    NpadIdType npad_id_type;
+    NpadStyleIndex npad_type{NpadStyleIndex::None};
+    NpadStyleTag supported_style_tag{NpadStyleSet::All};
+    bool is_connected{false};
+    bool is_configuring{false};
+    f32 motion_sensitivity{0.01f};
+    bool force_update_motion{false};
+
+    // Temporary values to avoid doing changes while the controller is in configuring mode
+    NpadStyleIndex tmp_npad_type{NpadStyleIndex::None};
+    bool tmp_is_connected{false};
+
+    ButtonParams button_params;
+    StickParams stick_params;
+    ControllerMotionParams motion_params;
+    TriggerParams trigger_params;
+    BatteryParams battery_params;
+    OutputParams output_params;
+
+    ButtonDevices button_devices;
+    StickDevices stick_devices;
+    ControllerMotionDevices motion_devices;
+    TriggerDevices trigger_devices;
+    BatteryDevices battery_devices;
+    OutputDevices output_devices;
+
+    // TAS related variables
+    ButtonParams tas_button_params;
+    StickParams tas_stick_params;
+    ButtonDevices tas_button_devices;
+    StickDevices tas_stick_devices;
+
+    mutable std::mutex mutex;
+    std::unordered_map<int, ControllerUpdateCallback> callback_list;
+    int last_callback_key = 0;
+
+    // Stores the current status of all controller input
+    ControllerStatus controller;
+};
+
+} // namespace Core::HID

src/core/hid/emulated_devices.cpp

@@ -0,0 +1,459 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include <algorithm>
+#include <fmt/format.h>
+
+#include "core/hid/emulated_devices.h"
+#include "core/hid/input_converter.h"
+
+namespace Core::HID {
+
+EmulatedDevices::EmulatedDevices() = default;
+
+EmulatedDevices::~EmulatedDevices() = default;
+
+void EmulatedDevices::ReloadFromSettings() {
+    ReloadInput();
+}
+
+void EmulatedDevices::ReloadInput() {
+    // If you load any device here add the equivalent to the UnloadInput() function
+    std::size_t key_index = 0;
+    for (auto& mouse_device : mouse_button_devices) {
+        Common::ParamPackage mouse_params;
+        mouse_params.Set("engine", "mouse");
+        mouse_params.Set("button", static_cast<int>(key_index));
+        mouse_device = Common::Input::CreateDevice<Common::Input::InputDevice>(mouse_params);
+        key_index++;
+    }
+
+    mouse_stick_device = Common::Input::CreateDeviceFromString<Common::Input::InputDevice>(
+        "engine:mouse,axis_x:0,axis_y:1");
+
+    // First two axis are reserved for mouse position
+    key_index = 2;
+    for (auto& mouse_device : mouse_analog_devices) {
+        Common::ParamPackage mouse_params;
+        mouse_params.Set("engine", "mouse");
+        mouse_params.Set("axis", static_cast<int>(key_index));
+        mouse_device = Common::Input::CreateDevice<Common::Input::InputDevice>(mouse_params);
+        key_index++;
+    }
+
+    key_index = 0;
+    for (auto& keyboard_device : keyboard_devices) {
+        // Keyboard keys are only mapped on port 1, pad 0
+        Common::ParamPackage keyboard_params;
+        keyboard_params.Set("engine", "keyboard");
+        keyboard_params.Set("button", static_cast<int>(key_index));
+        keyboard_params.Set("port", 1);
+        keyboard_params.Set("pad", 0);
+        keyboard_device = Common::Input::CreateDevice<Common::Input::InputDevice>(keyboard_params);
+        key_index++;
+    }
+
+    key_index = 0;
+    for (auto& keyboard_device : keyboard_modifier_devices) {
+        // Keyboard moddifiers are only mapped on port 1, pad 1
+        Common::ParamPackage keyboard_params;
+        keyboard_params.Set("engine", "keyboard");
+        keyboard_params.Set("button", static_cast<int>(key_index));
+        keyboard_params.Set("port", 1);
+        keyboard_params.Set("pad", 1);
+        keyboard_device = Common::Input::CreateDevice<Common::Input::InputDevice>(keyboard_params);
+        key_index++;
+    }
+
+    for (std::size_t index = 0; index < mouse_button_devices.size(); ++index) {
+        if (!mouse_button_devices[index]) {
+            continue;
+        }
+        mouse_button_devices[index]->SetCallback({
+            .on_change =
+                [this, index](const Common::Input::CallbackStatus& callback) {
+                    SetMouseButton(callback, index);
+                },
+        });
+    }
+
+    for (std::size_t index = 0; index < mouse_analog_devices.size(); ++index) {
+        if (!mouse_analog_devices[index]) {
+            continue;
+        }
+        mouse_analog_devices[index]->SetCallback({
+            .on_change =
+                [this, index](const Common::Input::CallbackStatus& callback) {
+                    SetMouseAnalog(callback, index);
+                },
+        });
+    }
+
+    if (mouse_stick_device) {
+        mouse_stick_device->SetCallback({
+            .on_change =
+                [this](const Common::Input::CallbackStatus& callback) { SetMouseStick(callback); },
+        });
+    }
+
+    for (std::size_t index = 0; index < keyboard_devices.size(); ++index) {
+        if (!keyboard_devices[index]) {
+            continue;
+        }
+        keyboard_devices[index]->SetCallback({
+            .on_change =
+                [this, index](const Common::Input::CallbackStatus& callback) {
+                    SetKeyboardButton(callback, index);
+                },
+        });
+    }
+
+    for (std::size_t index = 0; index < keyboard_modifier_devices.size(); ++index) {
+        if (!keyboard_modifier_devices[index]) {
+            continue;
+        }
+        keyboard_modifier_devices[index]->SetCallback({
+            .on_change =
+                [this, index](const Common::Input::CallbackStatus& callback) {
+                    SetKeyboardModifier(callback, index);
+                },
+        });
+    }
+}
+
+void EmulatedDevices::UnloadInput() {
+    for (auto& button : mouse_button_devices) {
+        button.reset();
+    }
+    for (auto& analog : mouse_analog_devices) {
+        analog.reset();
+    }
+    mouse_stick_device.reset();
+    for (auto& button : keyboard_devices) {
+        button.reset();
+    }
+    for (auto& button : keyboard_modifier_devices) {
+        button.reset();
+    }
+}
+
+void EmulatedDevices::EnableConfiguration() {
+    is_configuring = true;
+    SaveCurrentConfig();
+}
+
+void EmulatedDevices::DisableConfiguration() {
+    is_configuring = false;
+}
+
+bool EmulatedDevices::IsConfiguring() const {
+    return is_configuring;
+}
+
+void EmulatedDevices::SaveCurrentConfig() {
+    if (!is_configuring) {
+        return;
+    }
+}
+
+void EmulatedDevices::RestoreConfig() {
+    if (!is_configuring) {
+        return;
+    }
+    ReloadFromSettings();
+}
+
+void EmulatedDevices::SetKeyboardButton(const Common::Input::CallbackStatus& callback,
+                                        std::size_t index) {
+    if (index >= device_status.keyboard_values.size()) {
+        return;
+    }
+    std::lock_guard lock{mutex};
+    bool value_changed = false;
+    const auto new_status = TransformToButton(callback);
+    auto& current_status = device_status.keyboard_values[index];
+    current_status.toggle = new_status.toggle;
+
+    // Update button status with current status
+    if (!current_status.toggle) {
+        current_status.locked = false;
+        if (current_status.value != new_status.value) {
+            current_status.value = new_status.value;
+            value_changed = true;
+        }
+    } else {
+        // Toggle button and lock status
+        if (new_status.value && !current_status.locked) {
+            current_status.locked = true;
+            current_status.value = !current_status.value;
+            value_changed = true;
+        }
+
+        // Unlock button, ready for next press
+        if (!new_status.value && current_status.locked) {
+            current_status.locked = false;
+        }
+    }
+
+    if (!value_changed) {
+        return;
+    }
+
+    if (is_configuring) {
+        TriggerOnChange(DeviceTriggerType::Keyboard);
+        return;
+    }
+
+    // Index should be converted from NativeKeyboard to KeyboardKeyIndex
+    UpdateKey(index, current_status.value);
+
+    TriggerOnChange(DeviceTriggerType::Keyboard);
+}
+
+void EmulatedDevices::UpdateKey(std::size_t key_index, bool status) {
+    constexpr std::size_t KEYS_PER_BYTE = 8;
+    auto& entry = device_status.keyboard_state.key[key_index / KEYS_PER_BYTE];
+    const u8 mask = static_cast<u8>(1 << (key_index % KEYS_PER_BYTE));
+    if (status) {
+        entry = entry | mask;
+    } else {
+        entry = static_cast<u8>(entry & ~mask);
+    }
+}
+
+void EmulatedDevices::SetKeyboardModifier(const Common::Input::CallbackStatus& callback,
+                                          std::size_t index) {
+    if (index >= device_status.keyboard_moddifier_values.size()) {
+        return;
+    }
+    std::lock_guard lock{mutex};
+    bool value_changed = false;
+    const auto new_status = TransformToButton(callback);
+    auto& current_status = device_status.keyboard_moddifier_values[index];
+    current_status.toggle = new_status.toggle;
+
+    // Update button status with current
+    if (!current_status.toggle) {
+        current_status.locked = false;
+        if (current_status.value != new_status.value) {
+            current_status.value = new_status.value;
+            value_changed = true;
+        }
+    } else {
+        // Toggle button and lock status
+        if (new_status.value && !current_status.locked) {
+            current_status.locked = true;
+            current_status.value = !current_status.value;
+            value_changed = true;
+        }
+
+        // Unlock button ready for next press
+        if (!new_status.value && current_status.locked) {
+            current_status.locked = false;
+        }
+    }
+
+    if (!value_changed) {
+        return;
+    }
+
+    if (is_configuring) {
+        TriggerOnChange(DeviceTriggerType::KeyboardModdifier);
+        return;
+    }
+
+    switch (index) {
+    case Settings::NativeKeyboard::LeftControl:
+    case Settings::NativeKeyboard::RightControl:
+        device_status.keyboard_moddifier_state.control.Assign(current_status.value);
+        break;
+    case Settings::NativeKeyboard::LeftShift:
+    case Settings::NativeKeyboard::RightShift:
+        device_status.keyboard_moddifier_state.shift.Assign(current_status.value);
+        break;
+    case Settings::NativeKeyboard::LeftAlt:
+        device_status.keyboard_moddifier_state.left_alt.Assign(current_status.value);
+        break;
+    case Settings::NativeKeyboard::RightAlt:
+        device_status.keyboard_moddifier_state.right_alt.Assign(current_status.value);
+        break;
+    case Settings::NativeKeyboard::CapsLock:
+        device_status.keyboard_moddifier_state.caps_lock.Assign(current_status.value);
+        break;
+    case Settings::NativeKeyboard::ScrollLock:
+        device_status.keyboard_moddifier_state.scroll_lock.Assign(current_status.value);
+        break;
+    case Settings::NativeKeyboard::NumLock:
+        device_status.keyboard_moddifier_state.num_lock.Assign(current_status.value);
+        break;
+    }
+
+    TriggerOnChange(DeviceTriggerType::KeyboardModdifier);
+}
+
+void EmulatedDevices::SetMouseButton(const Common::Input::CallbackStatus& callback,
+                                     std::size_t index) {
+    if (index >= device_status.mouse_button_values.size()) {
+        return;
+    }
+    std::lock_guard lock{mutex};
+    bool value_changed = false;
+    const auto new_status = TransformToButton(callback);
+    auto& current_status = device_status.mouse_button_values[index];
+    current_status.toggle = new_status.toggle;
+
+    // Update button status with current
+    if (!current_status.toggle) {
+        current_status.locked = false;
+        if (current_status.value != new_status.value) {
+            current_status.value = new_status.value;
+            value_changed = true;
+        }
+    } else {
+        // Toggle button and lock status
+        if (new_status.value && !current_status.locked) {
+            current_status.locked = true;
+            current_status.value = !current_status.value;
+            value_changed = true;
+        }
+
+        // Unlock button ready for next press
+        if (!new_status.value && current_status.locked) {
+            current_status.locked = false;
+        }
+    }
+
+    if (!value_changed) {
+        return;
+    }
+
+    if (is_configuring) {
+        TriggerOnChange(DeviceTriggerType::Mouse);
+        return;
+    }
+
+    switch (index) {
+    case Settings::NativeMouseButton::Left:
+        device_status.mouse_button_state.left.Assign(current_status.value);
+        break;
+    case Settings::NativeMouseButton::Right:
+        device_status.mouse_button_state.right.Assign(current_status.value);
+        break;
+    case Settings::NativeMouseButton::Middle:
+        device_status.mouse_button_state.middle.Assign(current_status.value);
+        break;
+    case Settings::NativeMouseButton::Forward:
+        device_status.mouse_button_state.forward.Assign(current_status.value);
+        break;
+    case Settings::NativeMouseButton::Back:
+        device_status.mouse_button_state.back.Assign(current_status.value);
+        break;
+    }
+
+    TriggerOnChange(DeviceTriggerType::Mouse);
+}
+
+void EmulatedDevices::SetMouseAnalog(const Common::Input::CallbackStatus& callback,
+                                     std::size_t index) {
+    if (index >= device_status.mouse_analog_values.size()) {
+        return;
+    }
+    std::lock_guard lock{mutex};
+    const auto analog_value = TransformToAnalog(callback);
+
+    device_status.mouse_analog_values[index] = analog_value;
+
+    if (is_configuring) {
+        device_status.mouse_position_state = {};
+        TriggerOnChange(DeviceTriggerType::Mouse);
+        return;
+    }
+
+    switch (index) {
+    case Settings::NativeMouseWheel::X:
+        device_status.mouse_wheel_state.x = static_cast<s32>(analog_value.value);
+        break;
+    case Settings::NativeMouseWheel::Y:
+        device_status.mouse_wheel_state.y = static_cast<s32>(analog_value.value);
+        break;
+    }
+
+    TriggerOnChange(DeviceTriggerType::Mouse);
+}
+
+void EmulatedDevices::SetMouseStick(const Common::Input::CallbackStatus& callback) {
+    std::lock_guard lock{mutex};
+    const auto touch_value = TransformToTouch(callback);
+
+    device_status.mouse_stick_value = touch_value;
+
+    if (is_configuring) {
+        device_status.mouse_position_state = {};
+        TriggerOnChange(DeviceTriggerType::Mouse);
+        return;
+    }
+
+    device_status.mouse_position_state.x = touch_value.x.value;
+    device_status.mouse_position_state.y = touch_value.y.value;
+
+    TriggerOnChange(DeviceTriggerType::Mouse);
+}
+
+KeyboardValues EmulatedDevices::GetKeyboardValues() const {
+    return device_status.keyboard_values;
+}
+
+KeyboardModifierValues EmulatedDevices::GetKeyboardModdifierValues() const {
+    return device_status.keyboard_moddifier_values;
+}
+
+MouseButtonValues EmulatedDevices::GetMouseButtonsValues() const {
+    return device_status.mouse_button_values;
+}
+
+KeyboardKey EmulatedDevices::GetKeyboard() const {
+    return device_status.keyboard_state;
+}
+
+KeyboardModifier EmulatedDevices::GetKeyboardModifier() const {
+    return device_status.keyboard_moddifier_state;
+}
+
+MouseButton EmulatedDevices::GetMouseButtons() const {
+    return device_status.mouse_button_state;
+}
+
+MousePosition EmulatedDevices::GetMousePosition() const {
+    return device_status.mouse_position_state;
+}
+
+AnalogStickState EmulatedDevices::GetMouseWheel() const {
+    return device_status.mouse_wheel_state;
+}
+
+void EmulatedDevices::TriggerOnChange(DeviceTriggerType type) {
+    for (const auto& poller_pair : callback_list) {
+        const InterfaceUpdateCallback& poller = poller_pair.second;
+        if (poller.on_change) {
+            poller.on_change(type);
+        }
+    }
+}
+
+int EmulatedDevices::SetCallback(InterfaceUpdateCallback update_callback) {
+    std::lock_guard lock{mutex};
+    callback_list.insert_or_assign(last_callback_key, std::move(update_callback));
+    return last_callback_key++;
+}
+
+void EmulatedDevices::DeleteCallback(int key) {
+    std::lock_guard lock{mutex};
+    const auto& iterator = callback_list.find(key);
+    if (iterator == callback_list.end()) {
+        LOG_ERROR(Input, "Tried to delete non-existent callback {}", key);
+        return;
+    }
+    callback_list.erase(iterator);
+}
+} // namespace Core::HID

src/core/hid/emulated_devices.h

@@ -0,0 +1,210 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <functional>
+#include <memory>
+#include <mutex>
+#include <unordered_map>
+
+#include "common/common_types.h"
+#include "common/input.h"
+#include "common/param_package.h"
+#include "common/settings.h"
+#include "core/hid/hid_types.h"
+
+namespace Core::HID {
+using KeyboardDevices = std::array<std::unique_ptr<Common::Input::InputDevice>,
+                                   Settings::NativeKeyboard::NumKeyboardKeys>;
+using KeyboardModifierDevices = std::array<std::unique_ptr<Common::Input::InputDevice>,
+                                           Settings::NativeKeyboard::NumKeyboardMods>;
+using MouseButtonDevices = std::array<std::unique_ptr<Common::Input::InputDevice>,
+                                      Settings::NativeMouseButton::NumMouseButtons>;
+using MouseAnalogDevices = std::array<std::unique_ptr<Common::Input::InputDevice>,
+                                      Settings::NativeMouseWheel::NumMouseWheels>;
+using MouseStickDevice = std::unique_ptr<Common::Input::InputDevice>;
+
+using MouseButtonParams =
+    std::array<Common::ParamPackage, Settings::NativeMouseButton::NumMouseButtons>;
+
+using KeyboardValues =
+    std::array<Common::Input::ButtonStatus, Settings::NativeKeyboard::NumKeyboardKeys>;
+using KeyboardModifierValues =
+    std::array<Common::Input::ButtonStatus, Settings::NativeKeyboard::NumKeyboardMods>;
+using MouseButtonValues =
+    std::array<Common::Input::ButtonStatus, Settings::NativeMouseButton::NumMouseButtons>;
+using MouseAnalogValues =
+    std::array<Common::Input::AnalogStatus, Settings::NativeMouseWheel::NumMouseWheels>;
+using MouseStickValue = Common::Input::TouchStatus;
+
+struct MousePosition {
+    f32 x;
+    f32 y;
+};
+
+struct DeviceStatus {
+    // Data from input_common
+    KeyboardValues keyboard_values{};
+    KeyboardModifierValues keyboard_moddifier_values{};
+    MouseButtonValues mouse_button_values{};
+    MouseAnalogValues mouse_analog_values{};
+    MouseStickValue mouse_stick_value{};
+
+    // Data for HID serices
+    KeyboardKey keyboard_state{};
+    KeyboardModifier keyboard_moddifier_state{};
+    MouseButton mouse_button_state{};
+    MousePosition mouse_position_state{};
+    AnalogStickState mouse_wheel_state{};
+};
+
+enum class DeviceTriggerType {
+    Keyboard,
+    KeyboardModdifier,
+    Mouse,
+};
+
+struct InterfaceUpdateCallback {
+    std::function<void(DeviceTriggerType)> on_change;
+};
+
+class EmulatedDevices {
+public:
+    /**
+     * Contains all input data related to external devices that aren't necesarily a controller
+     * This includes devices such as the keyboard or mouse
+     */
+    explicit EmulatedDevices();
+    ~EmulatedDevices();
+
+    YUZU_NON_COPYABLE(EmulatedDevices);
+    YUZU_NON_MOVEABLE(EmulatedDevices);
+
+    /// Removes all callbacks created from input devices
+    void UnloadInput();
+
+    /**
+     * Sets the emulated devices into configuring mode
+     * This prevents the modification of the HID state of the emulated devices by input commands
+     */
+    void EnableConfiguration();
+
+    /// Returns the emulated devices into normal mode, allowing the modification of the HID state
+    void DisableConfiguration();
+
+    /// Returns true if the emulated device is in configuring mode
+    bool IsConfiguring() const;
+
+    /// Reload all input devices
+    void ReloadInput();
+
+    /// Overrides current mapped devices with the stored configuration and reloads all input devices
+    void ReloadFromSettings();
+
+    /// Saves the current mapped configuration
+    void SaveCurrentConfig();
+
+    /// Reverts any mapped changes made that weren't saved
+    void RestoreConfig();
+
+    /// Returns the latest status of button input from the keyboard with parameters
+    KeyboardValues GetKeyboardValues() const;
+
+    /// Returns the latest status of button input from the keyboard modifiers with parameters
+    KeyboardModifierValues GetKeyboardModdifierValues() const;
+
+    /// Returns the latest status of button input from the mouse with parameters
+    MouseButtonValues GetMouseButtonsValues() const;
+
+    /// Returns the latest status of button input from the keyboard
+    KeyboardKey GetKeyboard() const;
+
+    /// Returns the latest status of button input from the keyboard modifiers
+    KeyboardModifier GetKeyboardModifier() const;
+
+    /// Returns the latest status of button input from the mouse
+    MouseButton GetMouseButtons() const;
+
+    /// Returns the latest mouse coordinates
+    MousePosition GetMousePosition() const;
+
+    /// Returns the latest mouse wheel change
+    AnalogStickState GetMouseWheel() const;
+
+    /**
+     * Adds a callback to the list of events
+     * @param update_callback InterfaceUpdateCallback that will be triggered
+     * @return an unique key corresponding to the callback index in the list
+     */
+    int SetCallback(InterfaceUpdateCallback update_callback);
+
+    /**
+     * Removes a callback from the list stopping any future events to this object
+     * @param key Key corresponding to the callback index in the list
+     */
+    void DeleteCallback(int key);
+
+private:
+    /// Helps assigning a value to keyboard_state
+    void UpdateKey(std::size_t key_index, bool status);
+
+    /**
+     * Updates the touch status of the keyboard device
+     * @param callback A CallbackStatus containing the key status
+     * @param index key ID to be updated
+     */
+    void SetKeyboardButton(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Updates the keyboard status of the keyboard device
+     * @param callback A CallbackStatus containing the modifier key status
+     * @param index modifier key ID to be updated
+     */
+    void SetKeyboardModifier(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Updates the mouse button status of the mouse device
+     * @param callback A CallbackStatus containing the button status
+     * @param index Button ID to be updated
+     */
+    void SetMouseButton(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Updates the mouse wheel status of the mouse device
+     * @param callback A CallbackStatus containing the wheel status
+     * @param index wheel ID to be updated
+     */
+    void SetMouseAnalog(const Common::Input::CallbackStatus& callback, std::size_t index);
+
+    /**
+     * Updates the mouse position status of the mouse device
+     * @param callback A CallbackStatus containing the position status
+     */
+    void SetMouseStick(const Common::Input::CallbackStatus& callback);
+
+    /**
+     * Triggers a callback that something has changed on the device status
+     * @param type Input type of the event to trigger
+     */
+    void TriggerOnChange(DeviceTriggerType type);
+
+    bool is_configuring{false};
+
+    KeyboardDevices keyboard_devices;
+    KeyboardModifierDevices keyboard_modifier_devices;
+    MouseButtonDevices mouse_button_devices;
+    MouseAnalogDevices mouse_analog_devices;
+    MouseStickDevice mouse_stick_device;
+
+    mutable std::mutex mutex;
+    std::unordered_map<int, InterfaceUpdateCallback> callback_list;
+    int last_callback_key = 0;
+
+    // Stores the current status of all external device input
+    DeviceStatus device_status;
+};
+
+} // namespace Core::HID

src/core/hid/hid_core.cpp

@@ -0,0 +1,214 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "core/hid/emulated_console.h"
+#include "core/hid/emulated_controller.h"
+#include "core/hid/emulated_devices.h"
+#include "core/hid/hid_core.h"
+
+namespace Core::HID {
+
+HIDCore::HIDCore()
+    : player_1{std::make_unique<EmulatedController>(NpadIdType::Player1)},
+      player_2{std::make_unique<EmulatedController>(NpadIdType::Player2)},
+      player_3{std::make_unique<EmulatedController>(NpadIdType::Player3)},
+      player_4{std::make_unique<EmulatedController>(NpadIdType::Player4)},
+      player_5{std::make_unique<EmulatedController>(NpadIdType::Player5)},
+      player_6{std::make_unique<EmulatedController>(NpadIdType::Player6)},
+      player_7{std::make_unique<EmulatedController>(NpadIdType::Player7)},
+      player_8{std::make_unique<EmulatedController>(NpadIdType::Player8)},
+      other{std::make_unique<EmulatedController>(NpadIdType::Other)},
+      handheld{std::make_unique<EmulatedController>(NpadIdType::Handheld)},
+      console{std::make_unique<EmulatedConsole>()}, devices{std::make_unique<EmulatedDevices>()} {}
+
+HIDCore::~HIDCore() = default;
+
+EmulatedController* HIDCore::GetEmulatedController(NpadIdType npad_id_type) {
+    switch (npad_id_type) {
+    case NpadIdType::Player1:
+        return player_1.get();
+    case NpadIdType::Player2:
+        return player_2.get();
+    case NpadIdType::Player3:
+        return player_3.get();
+    case NpadIdType::Player4:
+        return player_4.get();
+    case NpadIdType::Player5:
+        return player_5.get();
+    case NpadIdType::Player6:
+        return player_6.get();
+    case NpadIdType::Player7:
+        return player_7.get();
+    case NpadIdType::Player8:
+        return player_8.get();
+    case NpadIdType::Other:
+        return other.get();
+    case NpadIdType::Handheld:
+        return handheld.get();
+    case NpadIdType::Invalid:
+    default:
+        UNREACHABLE_MSG("Invalid NpadIdType={}", npad_id_type);
+        return nullptr;
+    }
+}
+
+const EmulatedController* HIDCore::GetEmulatedController(NpadIdType npad_id_type) const {
+    switch (npad_id_type) {
+    case NpadIdType::Player1:
+        return player_1.get();
+    case NpadIdType::Player2:
+        return player_2.get();
+    case NpadIdType::Player3:
+        return player_3.get();
+    case NpadIdType::Player4:
+        return player_4.get();
+    case NpadIdType::Player5:
+        return player_5.get();
+    case NpadIdType::Player6:
+        return player_6.get();
+    case NpadIdType::Player7:
+        return player_7.get();
+    case NpadIdType::Player8:
+        return player_8.get();
+    case NpadIdType::Other:
+        return other.get();
+    case NpadIdType::Handheld:
+        return handheld.get();
+    case NpadIdType::Invalid:
+    default:
+        UNREACHABLE_MSG("Invalid NpadIdType={}", npad_id_type);
+        return nullptr;
+    }
+}
+EmulatedConsole* HIDCore::GetEmulatedConsole() {
+    return console.get();
+}
+
+const EmulatedConsole* HIDCore::GetEmulatedConsole() const {
+    return console.get();
+}
+
+EmulatedDevices* HIDCore::GetEmulatedDevices() {
+    return devices.get();
+}
+
+const EmulatedDevices* HIDCore::GetEmulatedDevices() const {
+    return devices.get();
+}
+
+EmulatedController* HIDCore::GetEmulatedControllerByIndex(std::size_t index) {
+    return GetEmulatedController(IndexToNpadIdType(index));
+}
+
+const EmulatedController* HIDCore::GetEmulatedControllerByIndex(std::size_t index) const {
+    return GetEmulatedController(IndexToNpadIdType(index));
+}
+
+void HIDCore::SetSupportedStyleTag(NpadStyleTag style_tag) {
+    supported_style_tag.raw = style_tag.raw;
+    player_1->SetSupportedNpadStyleTag(supported_style_tag);
+    player_2->SetSupportedNpadStyleTag(supported_style_tag);
+    player_3->SetSupportedNpadStyleTag(supported_style_tag);
+    player_4->SetSupportedNpadStyleTag(supported_style_tag);
+    player_5->SetSupportedNpadStyleTag(supported_style_tag);
+    player_6->SetSupportedNpadStyleTag(supported_style_tag);
+    player_7->SetSupportedNpadStyleTag(supported_style_tag);
+    player_8->SetSupportedNpadStyleTag(supported_style_tag);
+    other->SetSupportedNpadStyleTag(supported_style_tag);
+    handheld->SetSupportedNpadStyleTag(supported_style_tag);
+}
+
+NpadStyleTag HIDCore::GetSupportedStyleTag() const {
+    return supported_style_tag;
+}
+
+s8 HIDCore::GetPlayerCount() const {
+    s8 active_players = 0;
+    for (std::size_t player_index = 0; player_index < available_controllers - 2; ++player_index) {
+        const auto* const controller = GetEmulatedControllerByIndex(player_index);
+        if (controller->IsConnected()) {
+            active_players++;
+        }
+    }
+    return active_players;
+}
+
+NpadIdType HIDCore::GetFirstNpadId() const {
+    for (std::size_t player_index = 0; player_index < available_controllers; ++player_index) {
+        const auto* const controller = GetEmulatedControllerByIndex(player_index);
+        if (controller->IsConnected()) {
+            return controller->GetNpadIdType();
+        }
+    }
+    return NpadIdType::Player1;
+}
+
+NpadIdType HIDCore::GetFirstDisconnectedNpadId() const {
+    for (std::size_t player_index = 0; player_index < available_controllers; ++player_index) {
+        const auto* const controller = GetEmulatedControllerByIndex(player_index);
+        if (!controller->IsConnected()) {
+            return controller->GetNpadIdType();
+        }
+    }
+    return NpadIdType::Player1;
+}
+
+void HIDCore::EnableAllControllerConfiguration() {
+    player_1->EnableConfiguration();
+    player_2->EnableConfiguration();
+    player_3->EnableConfiguration();
+    player_4->EnableConfiguration();
+    player_5->EnableConfiguration();
+    player_6->EnableConfiguration();
+    player_7->EnableConfiguration();
+    player_8->EnableConfiguration();
+    other->EnableConfiguration();
+    handheld->EnableConfiguration();
+}
+
+void HIDCore::DisableAllControllerConfiguration() {
+    player_1->DisableConfiguration();
+    player_2->DisableConfiguration();
+    player_3->DisableConfiguration();
+    player_4->DisableConfiguration();
+    player_5->DisableConfiguration();
+    player_6->DisableConfiguration();
+    player_7->DisableConfiguration();
+    player_8->DisableConfiguration();
+    other->DisableConfiguration();
+    handheld->DisableConfiguration();
+}
+
+void HIDCore::ReloadInputDevices() {
+    player_1->ReloadFromSettings();
+    player_2->ReloadFromSettings();
+    player_3->ReloadFromSettings();
+    player_4->ReloadFromSettings();
+    player_5->ReloadFromSettings();
+    player_6->ReloadFromSettings();
+    player_7->ReloadFromSettings();
+    player_8->ReloadFromSettings();
+    other->ReloadFromSettings();
+    handheld->ReloadFromSettings();
+    console->ReloadFromSettings();
+    devices->ReloadFromSettings();
+}
+
+void HIDCore::UnloadInputDevices() {
+    player_1->UnloadInput();
+    player_2->UnloadInput();
+    player_3->UnloadInput();
+    player_4->UnloadInput();
+    player_5->UnloadInput();
+    player_6->UnloadInput();
+    player_7->UnloadInput();
+    player_8->UnloadInput();
+    other->UnloadInput();
+    handheld->UnloadInput();
+    console->UnloadInput();
+    devices->UnloadInput();
+}
+
+} // namespace Core::HID

src/core/hid/hid_core.h

@@ -0,0 +1,82 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+
+#include "core/hid/hid_types.h"
+
+namespace Core::HID {
+class EmulatedConsole;
+class EmulatedController;
+class EmulatedDevices;
+} // namespace Core::HID
+
+namespace Core::HID {
+
+class HIDCore {
+public:
+    explicit HIDCore();
+    ~HIDCore();
+
+    YUZU_NON_COPYABLE(HIDCore);
+    YUZU_NON_MOVEABLE(HIDCore);
+
+    EmulatedController* GetEmulatedController(NpadIdType npad_id_type);
+    const EmulatedController* GetEmulatedController(NpadIdType npad_id_type) const;
+
+    EmulatedController* GetEmulatedControllerByIndex(std::size_t index);
+    const EmulatedController* GetEmulatedControllerByIndex(std::size_t index) const;
+
+    EmulatedConsole* GetEmulatedConsole();
+    const EmulatedConsole* GetEmulatedConsole() const;
+
+    EmulatedDevices* GetEmulatedDevices();
+    const EmulatedDevices* GetEmulatedDevices() const;
+
+    void SetSupportedStyleTag(NpadStyleTag style_tag);
+    NpadStyleTag GetSupportedStyleTag() const;
+
+    /// Counts the connected players from P1-P8
+    s8 GetPlayerCount() const;
+
+    /// Returns the first connected npad id
+    NpadIdType GetFirstNpadId() const;
+
+    /// Returns the first disconnected npad id
+    NpadIdType GetFirstDisconnectedNpadId() const;
+
+    /// Sets all emulated controllers into configuring mode.
+    void EnableAllControllerConfiguration();
+
+    /// Sets all emulated controllers into normal mode.
+    void DisableAllControllerConfiguration();
+
+    /// Reloads all input devices from settings
+    void ReloadInputDevices();
+
+    /// Removes all callbacks from input common
+    void UnloadInputDevices();
+
+    /// Number of emulated controllers
+    static constexpr std::size_t available_controllers{10};
+
+private:
+    std::unique_ptr<EmulatedController> player_1;
+    std::unique_ptr<EmulatedController> player_2;
+    std::unique_ptr<EmulatedController> player_3;
+    std::unique_ptr<EmulatedController> player_4;
+    std::unique_ptr<EmulatedController> player_5;
+    std::unique_ptr<EmulatedController> player_6;
+    std::unique_ptr<EmulatedController> player_7;
+    std::unique_ptr<EmulatedController> player_8;
+    std::unique_ptr<EmulatedController> other;
+    std::unique_ptr<EmulatedController> handheld;
+    std::unique_ptr<EmulatedConsole> console;
+    std::unique_ptr<EmulatedDevices> devices;
+    NpadStyleTag supported_style_tag{NpadStyleSet::All};
+};
+
+} // namespace Core::HID

src/core/hid/hid_types.h

@@ -0,0 +1,635 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/bit_field.h"
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "common/point.h"
+#include "common/uuid.h"
+
+namespace Core::HID {
+
+enum class DeviceIndex : u8 {
+    Left = 0,
+    Right = 1,
+    None = 2,
+    MaxDeviceIndex = 3,
+};
+
+// This is nn::hid::NpadButton
+enum class NpadButton : u64 {
+    None = 0,
+    A = 1U << 0,
+    B = 1U << 1,
+    X = 1U << 2,
+    Y = 1U << 3,
+    StickL = 1U << 4,
+    StickR = 1U << 5,
+    L = 1U << 6,
+    R = 1U << 7,
+    ZL = 1U << 8,
+    ZR = 1U << 9,
+    Plus = 1U << 10,
+    Minus = 1U << 11,
+
+    Left = 1U << 12,
+    Up = 1U << 13,
+    Right = 1U << 14,
+    Down = 1U << 15,
+
+    StickLLeft = 1U << 16,
+    StickLUp = 1U << 17,
+    StickLRight = 1U << 18,
+    StickLDown = 1U << 19,
+
+    StickRLeft = 1U << 20,
+    StickRUp = 1U << 21,
+    StickRRight = 1U << 22,
+    StickRDown = 1U << 23,
+
+    LeftSL = 1U << 24,
+    LeftSR = 1U << 25,
+
+    RightSL = 1U << 26,
+    RightSR = 1U << 27,
+
+    Palma = 1U << 28,
+    Verification = 1U << 29,
+    HandheldLeftB = 1U << 30,
+    LagonCLeft = 1U << 31,
+    LagonCUp = 1ULL << 32,
+    LagonCRight = 1ULL << 33,
+    LagonCDown = 1ULL << 34,
+
+    All = 0xFFFFFFFFFFFFFFFFULL,
+};
+DECLARE_ENUM_FLAG_OPERATORS(NpadButton);
+
+enum class KeyboardKeyIndex : u32 {
+    A = 4,
+    B = 5,
+    C = 6,
+    D = 7,
+    E = 8,
+    F = 9,
+    G = 10,
+    H = 11,
+    I = 12,
+    J = 13,
+    K = 14,
+    L = 15,
+    M = 16,
+    N = 17,
+    O = 18,
+    P = 19,
+    Q = 20,
+    R = 21,
+    S = 22,
+    T = 23,
+    U = 24,
+    V = 25,
+    W = 26,
+    X = 27,
+    Y = 28,
+    Z = 29,
+    D1 = 30,
+    D2 = 31,
+    D3 = 32,
+    D4 = 33,
+    D5 = 34,
+    D6 = 35,
+    D7 = 36,
+    D8 = 37,
+    D9 = 38,
+    D0 = 39,
+    Return = 40,
+    Escape = 41,
+    Backspace = 42,
+    Tab = 43,
+    Space = 44,
+    Minus = 45,
+    Plus = 46,
+    OpenBracket = 47,
+    CloseBracket = 48,
+    Pipe = 49,
+    Tilde = 50,
+    Semicolon = 51,
+    Quote = 52,
+    Backquote = 53,
+    Comma = 54,
+    Period = 55,
+    Slash = 56,
+    CapsLock = 57,
+    F1 = 58,
+    F2 = 59,
+    F3 = 60,
+    F4 = 61,
+    F5 = 62,
+    F6 = 63,
+    F7 = 64,
+    F8 = 65,
+    F9 = 66,
+    F10 = 67,
+    F11 = 68,
+    F12 = 69,
+    PrintScreen = 70,
+    ScrollLock = 71,
+    Pause = 72,
+    Insert = 73,
+    Home = 74,
+    PageUp = 75,
+    Delete = 76,
+    End = 77,
+    PageDown = 78,
+    RightArrow = 79,
+    LeftArrow = 80,
+    DownArrow = 81,
+    UpArrow = 82,
+    NumLock = 83,
+    NumPadDivide = 84,
+    NumPadMultiply = 85,
+    NumPadSubtract = 86,
+    NumPadAdd = 87,
+    NumPadEnter = 88,
+    NumPad1 = 89,
+    NumPad2 = 90,
+    NumPad3 = 91,
+    NumPad4 = 92,
+    NumPad5 = 93,
+    NumPad6 = 94,
+    NumPad7 = 95,
+    NumPad8 = 96,
+    NumPad9 = 97,
+    NumPad0 = 98,
+    NumPadDot = 99,
+    Backslash = 100,
+    Application = 101,
+    Power = 102,
+    NumPadEquals = 103,
+    F13 = 104,
+    F14 = 105,
+    F15 = 106,
+    F16 = 107,
+    F17 = 108,
+    F18 = 109,
+    F19 = 110,
+    F20 = 111,
+    F21 = 112,
+    F22 = 113,
+    F23 = 114,
+    F24 = 115,
+    NumPadComma = 133,
+    Ro = 135,
+    KatakanaHiragana = 136,
+    Yen = 137,
+    Henkan = 138,
+    Muhenkan = 139,
+    NumPadCommaPc98 = 140,
+    HangulEnglish = 144,
+    Hanja = 145,
+    Katakana = 146,
+    Hiragana = 147,
+    ZenkakuHankaku = 148,
+    LeftControl = 224,
+    LeftShift = 225,
+    LeftAlt = 226,
+    LeftGui = 227,
+    RightControl = 228,
+    RightShift = 229,
+    RightAlt = 230,
+    RightGui = 231,
+};
+
+// This is nn::hid::NpadIdType
+enum class NpadIdType : u32 {
+    Player1 = 0x0,
+    Player2 = 0x1,
+    Player3 = 0x2,
+    Player4 = 0x3,
+    Player5 = 0x4,
+    Player6 = 0x5,
+    Player7 = 0x6,
+    Player8 = 0x7,
+    Other = 0x10,
+    Handheld = 0x20,
+
+    Invalid = 0xFFFFFFFF,
+};
+
+// This is nn::hid::NpadStyleIndex
+enum class NpadStyleIndex : u8 {
+    None = 0,
+    ProController = 3,
+    Handheld = 4,
+    HandheldNES = 4,
+    JoyconDual = 5,
+    JoyconLeft = 6,
+    JoyconRight = 7,
+    GameCube = 8,
+    Pokeball = 9,
+    NES = 10,
+    SNES = 12,
+    N64 = 13,
+    SegaGenesis = 14,
+    SystemExt = 32,
+    System = 33,
+    MaxNpadType = 34,
+};
+
+// This is nn::hid::NpadStyleSet
+enum class NpadStyleSet : u32 {
+    None = 0,
+    Fullkey = 1U << 0,
+    Handheld = 1U << 1,
+    JoyDual = 1U << 2,
+    JoyLeft = 1U << 3,
+    JoyRight = 1U << 4,
+    Gc = 1U << 5,
+    Palma = 1U << 6,
+    Lark = 1U << 7,
+    HandheldLark = 1U << 8,
+    Lucia = 1U << 9,
+    Lagoon = 1U << 10,
+    Lager = 1U << 11,
+    SystemExt = 1U << 29,
+    System = 1U << 30,
+
+    All = 0xFFFFFFFFU,
+};
+static_assert(sizeof(NpadStyleSet) == 4, "NpadStyleSet is an invalid size");
+
+// This is nn::hid::VibrationDevicePosition
+enum class VibrationDevicePosition : u32 {
+    None = 0,
+    Left = 1,
+    Right = 2,
+};
+
+// This is nn::hid::VibrationDeviceType
+enum class VibrationDeviceType : u32 {
+    Unknown = 0,
+    LinearResonantActuator = 1,
+    GcErm = 2,
+};
+
+// This is nn::hid::VibrationGcErmCommand
+enum class VibrationGcErmCommand : u64 {
+    Stop = 0,
+    Start = 1,
+    StopHard = 2,
+};
+
+// This is nn::hid::NpadStyleTag
+struct NpadStyleTag {
+    union {
+        NpadStyleSet raw{};
+
+        BitField<0, 1, u32> fullkey;
+        BitField<1, 1, u32> handheld;
+        BitField<2, 1, u32> joycon_dual;
+        BitField<3, 1, u32> joycon_left;
+        BitField<4, 1, u32> joycon_right;
+        BitField<5, 1, u32> gamecube;
+        BitField<6, 1, u32> palma;
+        BitField<7, 1, u32> lark;
+        BitField<8, 1, u32> handheld_lark;
+        BitField<9, 1, u32> lucia;
+        BitField<10, 1, u32> lagoon;
+        BitField<11, 1, u32> lager;
+        BitField<29, 1, u32> system_ext;
+        BitField<30, 1, u32> system;
+    };
+};
+static_assert(sizeof(NpadStyleTag) == 4, "NpadStyleTag is an invalid size");
+
+// This is nn::hid::TouchAttribute
+struct TouchAttribute {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> start_touch;
+        BitField<1, 1, u32> end_touch;
+    };
+};
+static_assert(sizeof(TouchAttribute) == 0x4, "TouchAttribute is an invalid size");
+
+// This is nn::hid::TouchState
+struct TouchState {
+    u64 delta_time;
+    TouchAttribute attribute;
+    u32 finger;
+    Common::Point<u32> position;
+    u32 diameter_x;
+    u32 diameter_y;
+    u32 rotation_angle;
+};
+static_assert(sizeof(TouchState) == 0x28, "Touchstate is an invalid size");
+
+// This is nn::hid::NpadControllerColor
+struct NpadControllerColor {
+    u32 body;
+    u32 button;
+};
+static_assert(sizeof(NpadControllerColor) == 8, "NpadControllerColor is an invalid size");
+
+// This is nn::hid::AnalogStickState
+struct AnalogStickState {
+    s32 x;
+    s32 y;
+};
+static_assert(sizeof(AnalogStickState) == 8, "AnalogStickState is an invalid size");
+
+// This is nn::hid::server::NpadGcTriggerState
+struct NpadGcTriggerState {
+    s64 sampling_number{};
+    s32 left{};
+    s32 right{};
+};
+static_assert(sizeof(NpadGcTriggerState) == 0x10, "NpadGcTriggerState is an invalid size");
+
+// This is nn::hid::system::NpadBatteryLevel
+using NpadBatteryLevel = u32;
+static_assert(sizeof(NpadBatteryLevel) == 0x4, "NpadBatteryLevel is an invalid size");
+
+// This is nn::hid::system::NpadPowerInfo
+struct NpadPowerInfo {
+    bool is_powered;
+    bool is_charging;
+    INSERT_PADDING_BYTES(0x6);
+    NpadBatteryLevel battery_level;
+};
+static_assert(sizeof(NpadPowerInfo) == 0xC, "NpadPowerInfo is an invalid size");
+
+struct LedPattern {
+    explicit LedPattern(u64 light1, u64 light2, u64 light3, u64 light4) {
+        position1.Assign(light1);
+        position2.Assign(light2);
+        position3.Assign(light3);
+        position4.Assign(light4);
+    }
+    union {
+        u64 raw{};
+        BitField<0, 1, u64> position1;
+        BitField<1, 1, u64> position2;
+        BitField<2, 1, u64> position3;
+        BitField<3, 1, u64> position4;
+    };
+};
+
+struct NpadButtonState {
+    union {
+        NpadButton raw{};
+
+        // Buttons
+        BitField<0, 1, u64> a;
+        BitField<1, 1, u64> b;
+        BitField<2, 1, u64> x;
+        BitField<3, 1, u64> y;
+        BitField<4, 1, u64> stick_l;
+        BitField<5, 1, u64> stick_r;
+        BitField<6, 1, u64> l;
+        BitField<7, 1, u64> r;
+        BitField<8, 1, u64> zl;
+        BitField<9, 1, u64> zr;
+        BitField<10, 1, u64> plus;
+        BitField<11, 1, u64> minus;
+
+        // D-Pad
+        BitField<12, 1, u64> left;
+        BitField<13, 1, u64> up;
+        BitField<14, 1, u64> right;
+        BitField<15, 1, u64> down;
+
+        // Left JoyStick
+        BitField<16, 1, u64> stick_l_left;
+        BitField<17, 1, u64> stick_l_up;
+        BitField<18, 1, u64> stick_l_right;
+        BitField<19, 1, u64> stick_l_down;
+
+        // Right JoyStick
+        BitField<20, 1, u64> stick_r_left;
+        BitField<21, 1, u64> stick_r_up;
+        BitField<22, 1, u64> stick_r_right;
+        BitField<23, 1, u64> stick_r_down;
+
+        BitField<24, 1, u64> left_sl;
+        BitField<25, 1, u64> left_sr;
+
+        BitField<26, 1, u64> right_sl;
+        BitField<27, 1, u64> right_sr;
+
+        BitField<28, 1, u64> palma;
+        BitField<29, 1, u64> verification;
+        BitField<30, 1, u64> handheld_left_b;
+        BitField<31, 1, u64> lagon_c_left;
+        BitField<32, 1, u64> lagon_c_up;
+        BitField<33, 1, u64> lagon_c_right;
+        BitField<34, 1, u64> lagon_c_down;
+    };
+};
+static_assert(sizeof(NpadButtonState) == 0x8, "NpadButtonState has incorrect size.");
+
+// This is nn::hid::DebugPadButton
+struct DebugPadButton {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> a;
+        BitField<1, 1, u32> b;
+        BitField<2, 1, u32> x;
+        BitField<3, 1, u32> y;
+        BitField<4, 1, u32> l;
+        BitField<5, 1, u32> r;
+        BitField<6, 1, u32> zl;
+        BitField<7, 1, u32> zr;
+        BitField<8, 1, u32> plus;
+        BitField<9, 1, u32> minus;
+        BitField<10, 1, u32> d_left;
+        BitField<11, 1, u32> d_up;
+        BitField<12, 1, u32> d_right;
+        BitField<13, 1, u32> d_down;
+    };
+};
+static_assert(sizeof(DebugPadButton) == 0x4, "DebugPadButton is an invalid size");
+
+// This is nn::hid::ConsoleSixAxisSensorHandle
+struct ConsoleSixAxisSensorHandle {
+    u8 unknown_1;
+    u8 unknown_2;
+    INSERT_PADDING_BYTES_NOINIT(2);
+};
+static_assert(sizeof(ConsoleSixAxisSensorHandle) == 4,
+              "ConsoleSixAxisSensorHandle is an invalid size");
+
+// This is nn::hid::SixAxisSensorHandle
+struct SixAxisSensorHandle {
+    NpadStyleIndex npad_type;
+    u8 npad_id;
+    DeviceIndex device_index;
+    INSERT_PADDING_BYTES_NOINIT(1);
+};
+static_assert(sizeof(SixAxisSensorHandle) == 4, "SixAxisSensorHandle is an invalid size");
+
+struct SixAxisSensorFusionParameters {
+    f32 parameter1;
+    f32 parameter2;
+};
+static_assert(sizeof(SixAxisSensorFusionParameters) == 8,
+              "SixAxisSensorFusionParameters is an invalid size");
+
+// This is nn::hid::VibrationDeviceHandle
+struct VibrationDeviceHandle {
+    NpadStyleIndex npad_type;
+    u8 npad_id;
+    DeviceIndex device_index;
+    INSERT_PADDING_BYTES_NOINIT(1);
+};
+static_assert(sizeof(VibrationDeviceHandle) == 4, "SixAxisSensorHandle is an invalid size");
+
+// This is nn::hid::VibrationValue
+struct VibrationValue {
+    f32 low_amplitude;
+    f32 low_frequency;
+    f32 high_amplitude;
+    f32 high_frequency;
+};
+static_assert(sizeof(VibrationValue) == 0x10, "VibrationValue has incorrect size.");
+
+// This is nn::hid::VibrationDeviceInfo
+struct VibrationDeviceInfo {
+    VibrationDeviceType type{};
+    VibrationDevicePosition position{};
+};
+static_assert(sizeof(VibrationDeviceInfo) == 0x8, "VibrationDeviceInfo has incorrect size.");
+
+// This is nn::hid::KeyboardModifier
+struct KeyboardModifier {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> control;
+        BitField<1, 1, u32> shift;
+        BitField<2, 1, u32> left_alt;
+        BitField<3, 1, u32> right_alt;
+        BitField<4, 1, u32> gui;
+        BitField<8, 1, u32> caps_lock;
+        BitField<9, 1, u32> scroll_lock;
+        BitField<10, 1, u32> num_lock;
+        BitField<11, 1, u32> katakana;
+        BitField<12, 1, u32> hiragana;
+    };
+};
+
+static_assert(sizeof(KeyboardModifier) == 0x4, "KeyboardModifier is an invalid size");
+
+// This is nn::hid::KeyboardAttribute
+struct KeyboardAttribute {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> is_connected;
+    };
+};
+static_assert(sizeof(KeyboardAttribute) == 0x4, "KeyboardAttribute is an invalid size");
+
+// This is nn::hid::KeyboardKey
+struct KeyboardKey {
+    // This should be a 256 bit flag
+    std::array<u8, 32> key;
+};
+static_assert(sizeof(KeyboardKey) == 0x20, "KeyboardKey is an invalid size");
+
+// This is nn::hid::MouseButton
+struct MouseButton {
+    union {
+        u32_le raw{};
+        BitField<0, 1, u32> left;
+        BitField<1, 1, u32> right;
+        BitField<2, 1, u32> middle;
+        BitField<3, 1, u32> forward;
+        BitField<4, 1, u32> back;
+    };
+};
+static_assert(sizeof(MouseButton) == 0x4, "MouseButton is an invalid size");
+
+// This is nn::hid::MouseAttribute
+struct MouseAttribute {
+    union {
+        u32 raw{};
+        BitField<0, 1, u32> transferable;
+        BitField<1, 1, u32> is_connected;
+    };
+};
+static_assert(sizeof(MouseAttribute) == 0x4, "MouseAttribute is an invalid size");
+
+// This is nn::hid::detail::MouseState
+struct MouseState {
+    s64 sampling_number;
+    s32 x;
+    s32 y;
+    s32 delta_x;
+    s32 delta_y;
+    // Axis Order in HW is switched for the wheel
+    s32 delta_wheel_y;
+    s32 delta_wheel_x;
+    MouseButton button;
+    MouseAttribute attribute;
+};
+static_assert(sizeof(MouseState) == 0x28, "MouseState is an invalid size");
+
+/// Converts a NpadIdType to an array index.
+constexpr size_t NpadIdTypeToIndex(NpadIdType npad_id_type) {
+    switch (npad_id_type) {
+    case NpadIdType::Player1:
+        return 0;
+    case NpadIdType::Player2:
+        return 1;
+    case NpadIdType::Player3:
+        return 2;
+    case NpadIdType::Player4:
+        return 3;
+    case NpadIdType::Player5:
+        return 4;
+    case NpadIdType::Player6:
+        return 5;
+    case NpadIdType::Player7:
+        return 6;
+    case NpadIdType::Player8:
+        return 7;
+    case NpadIdType::Handheld:
+        return 8;
+    case NpadIdType::Other:
+        return 9;
+    default:
+        return 0;
+    }
+}
+
+/// Converts an array index to a NpadIdType
+constexpr NpadIdType IndexToNpadIdType(size_t index) {
+    switch (index) {
+    case 0:
+        return NpadIdType::Player1;
+    case 1:
+        return NpadIdType::Player2;
+    case 2:
+        return NpadIdType::Player3;
+    case 3:
+        return NpadIdType::Player4;
+    case 4:
+        return NpadIdType::Player5;
+    case 5:
+        return NpadIdType::Player6;
+    case 6:
+        return NpadIdType::Player7;
+    case 7:
+        return NpadIdType::Player8;
+    case 8:
+        return NpadIdType::Handheld;
+    case 9:
+        return NpadIdType::Other;
+    default:
+        return NpadIdType::Invalid;
+    }
+}
+
+} // namespace Core::HID

src/core/hid/input_converter.cpp

@@ -0,0 +1,383 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#include <random>
+
+#include "common/input.h"
+#include "core/hid/input_converter.h"
+
+namespace Core::HID {
+
+Common::Input::BatteryStatus TransformToBattery(const Common::Input::CallbackStatus& callback) {
+    Common::Input::BatteryStatus battery{Common::Input::BatteryStatus::None};
+    switch (callback.type) {
+    case Common::Input::InputType::Analog:
+    case Common::Input::InputType::Trigger: {
+        const auto value = TransformToTrigger(callback).analog.value;
+        battery = Common::Input::BatteryLevel::Empty;
+        if (value > 0.2f) {
+            battery = Common::Input::BatteryLevel::Critical;
+        }
+        if (value > 0.4f) {
+            battery = Common::Input::BatteryLevel::Low;
+        }
+        if (value > 0.6f) {
+            battery = Common::Input::BatteryLevel::Medium;
+        }
+        if (value > 0.8f) {
+            battery = Common::Input::BatteryLevel::Full;
+        }
+        if (value >= 1.0f) {
+            battery = Common::Input::BatteryLevel::Charging;
+        }
+        break;
+    }
+    case Common::Input::InputType::Button:
+        battery = callback.button_status.value ? Common::Input::BatteryLevel::Charging
+                                               : Common::Input::BatteryLevel::Critical;
+        break;
+    case Common::Input::InputType::Battery:
+        battery = callback.battery_status;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to battery not implemented", callback.type);
+        break;
+    }
+
+    return battery;
+}
+
+Common::Input::ButtonStatus TransformToButton(const Common::Input::CallbackStatus& callback) {
+    Common::Input::ButtonStatus status{};
+    switch (callback.type) {
+    case Common::Input::InputType::Analog:
+    case Common::Input::InputType::Trigger:
+        status.value = TransformToTrigger(callback).pressed.value;
+        break;
+    case Common::Input::InputType::Button:
+        status = callback.button_status;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to button not implemented", callback.type);
+        break;
+    }
+
+    if (status.inverted) {
+        status.value = !status.value;
+    }
+
+    return status;
+}
+
+Common::Input::MotionStatus TransformToMotion(const Common::Input::CallbackStatus& callback) {
+    Common::Input::MotionStatus status{};
+    switch (callback.type) {
+    case Common::Input::InputType::Button: {
+        Common::Input::AnalogProperties properties{
+            .deadzone = 0.0f,
+            .range = 1.0f,
+            .offset = 0.0f,
+        };
+        status.delta_timestamp = 5000;
+        status.force_update = true;
+        status.accel.x = {
+            .value = 0.0f,
+            .raw_value = 0.0f,
+            .properties = properties,
+        };
+        status.accel.y = {
+            .value = 0.0f,
+            .raw_value = 0.0f,
+            .properties = properties,
+        };
+        status.accel.z = {
+            .value = 0.0f,
+            .raw_value = -1.0f,
+            .properties = properties,
+        };
+        status.gyro.x = {
+            .value = 0.0f,
+            .raw_value = 0.0f,
+            .properties = properties,
+        };
+        status.gyro.y = {
+            .value = 0.0f,
+            .raw_value = 0.0f,
+            .properties = properties,
+        };
+        status.gyro.z = {
+            .value = 0.0f,
+            .raw_value = 0.0f,
+            .properties = properties,
+        };
+        if (TransformToButton(callback).value) {
+            std::random_device device;
+            std::mt19937 gen(device());
+            std::uniform_int_distribution<s16> distribution(-1000, 1000);
+            status.accel.x.raw_value = static_cast<f32>(distribution(gen)) * 0.001f;
+            status.accel.y.raw_value = static_cast<f32>(distribution(gen)) * 0.001f;
+            status.accel.z.raw_value = static_cast<f32>(distribution(gen)) * 0.001f;
+            status.gyro.x.raw_value = static_cast<f32>(distribution(gen)) * 0.001f;
+            status.gyro.y.raw_value = static_cast<f32>(distribution(gen)) * 0.001f;
+            status.gyro.z.raw_value = static_cast<f32>(distribution(gen)) * 0.001f;
+        }
+        break;
+    }
+    case Common::Input::InputType::Motion:
+        status = callback.motion_status;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to motion not implemented", callback.type);
+        break;
+    }
+    SanitizeAnalog(status.accel.x, false);
+    SanitizeAnalog(status.accel.y, false);
+    SanitizeAnalog(status.accel.z, false);
+    SanitizeAnalog(status.gyro.x, false);
+    SanitizeAnalog(status.gyro.y, false);
+    SanitizeAnalog(status.gyro.z, false);
+
+    return status;
+}
+
+Common::Input::StickStatus TransformToStick(const Common::Input::CallbackStatus& callback) {
+    Common::Input::StickStatus status{};
+
+    switch (callback.type) {
+    case Common::Input::InputType::Stick:
+        status = callback.stick_status;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to stick not implemented", callback.type);
+        break;
+    }
+
+    SanitizeStick(status.x, status.y, true);
+    const auto& properties_x = status.x.properties;
+    const auto& properties_y = status.y.properties;
+    const float x = status.x.value;
+    const float y = status.y.value;
+
+    // Set directional buttons
+    status.right = x > properties_x.threshold;
+    status.left = x < -properties_x.threshold;
+    status.up = y > properties_y.threshold;
+    status.down = y < -properties_y.threshold;
+
+    return status;
+}
+
+Common::Input::TouchStatus TransformToTouch(const Common::Input::CallbackStatus& callback) {
+    Common::Input::TouchStatus status{};
+
+    switch (callback.type) {
+    case Common::Input::InputType::Touch:
+        status = callback.touch_status;
+        break;
+    case Common::Input::InputType::Stick:
+        status.x = callback.stick_status.x;
+        status.y = callback.stick_status.y;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to touch not implemented", callback.type);
+        break;
+    }
+
+    SanitizeAnalog(status.x, true);
+    SanitizeAnalog(status.y, true);
+    float& x = status.x.value;
+    float& y = status.y.value;
+
+    // Adjust if value is inverted
+    x = status.x.properties.inverted ? 1.0f + x : x;
+    y = status.y.properties.inverted ? 1.0f + y : y;
+
+    // clamp value
+    x = std::clamp(x, 0.0f, 1.0f);
+    y = std::clamp(y, 0.0f, 1.0f);
+
+    if (status.pressed.inverted) {
+        status.pressed.value = !status.pressed.value;
+    }
+
+    return status;
+}
+
+Common::Input::TriggerStatus TransformToTrigger(const Common::Input::CallbackStatus& callback) {
+    Common::Input::TriggerStatus status{};
+    float& raw_value = status.analog.raw_value;
+    bool calculate_button_value = true;
+
+    switch (callback.type) {
+    case Common::Input::InputType::Analog:
+        status.analog.properties = callback.analog_status.properties;
+        raw_value = callback.analog_status.raw_value;
+        break;
+    case Common::Input::InputType::Button:
+        status.analog.properties.range = 1.0f;
+        status.analog.properties.inverted = callback.button_status.inverted;
+        raw_value = callback.button_status.value ? 1.0f : 0.0f;
+        break;
+    case Common::Input::InputType::Trigger:
+        status = callback.trigger_status;
+        calculate_button_value = false;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to trigger not implemented", callback.type);
+        break;
+    }
+
+    SanitizeAnalog(status.analog, true);
+    const auto& properties = status.analog.properties;
+    float& value = status.analog.value;
+
+    // Set button status
+    if (calculate_button_value) {
+        status.pressed.value = value > properties.threshold;
+    }
+
+    // Adjust if value is inverted
+    value = properties.inverted ? 1.0f + value : value;
+
+    // clamp value
+    value = std::clamp(value, 0.0f, 1.0f);
+
+    return status;
+}
+
+Common::Input::AnalogStatus TransformToAnalog(const Common::Input::CallbackStatus& callback) {
+    Common::Input::AnalogStatus status{};
+
+    switch (callback.type) {
+    case Common::Input::InputType::Analog:
+        status.properties = callback.analog_status.properties;
+        status.raw_value = callback.analog_status.raw_value;
+        break;
+    default:
+        LOG_ERROR(Input, "Conversion from type {} to analog not implemented", callback.type);
+        break;
+    }
+
+    SanitizeAnalog(status, false);
+
+    // Adjust if value is inverted
+    status.value = status.properties.inverted ? -status.value : status.value;
+
+    return status;
+}
+
+void SanitizeAnalog(Common::Input::AnalogStatus& analog, bool clamp_value) {
+    const auto& properties = analog.properties;
+    float& raw_value = analog.raw_value;
+    float& value = analog.value;
+
+    if (!std::isnormal(raw_value)) {
+        raw_value = 0;
+    }
+
+    // Apply center offset
+    raw_value -= properties.offset;
+
+    // Set initial values to be formated
+    value = raw_value;
+
+    // Calculate vector size
+    const float r = std::abs(value);
+
+    // Return zero if value is smaller than the deadzone
+    if (r <= properties.deadzone || properties.deadzone == 1.0f) {
+        analog.value = 0;
+        return;
+    }
+
+    // Adjust range of value
+    const float deadzone_factor =
+        1.0f / r * (r - properties.deadzone) / (1.0f - properties.deadzone);
+    value = value * deadzone_factor / properties.range;
+
+    // Invert direction if needed
+    if (properties.inverted) {
+        value = -value;
+    }
+
+    // Clamp value
+    if (clamp_value) {
+        value = std::clamp(value, -1.0f, 1.0f);
+    }
+}
+
+void SanitizeStick(Common::Input::AnalogStatus& analog_x, Common::Input::AnalogStatus& analog_y,
+                   bool clamp_value) {
+    const auto& properties_x = analog_x.properties;
+    const auto& properties_y = analog_y.properties;
+    float& raw_x = analog_x.raw_value;
+    float& raw_y = analog_y.raw_value;
+    float& x = analog_x.value;
+    float& y = analog_y.value;
+
+    if (!std::isnormal(raw_x)) {
+        raw_x = 0;
+    }
+    if (!std::isnormal(raw_y)) {
+        raw_y = 0;
+    }
+
+    // Apply center offset
+    raw_x += properties_x.offset;
+    raw_y += properties_y.offset;
+
+    // Apply X scale correction from offset
+    if (std::abs(properties_x.offset) < 0.5f) {
+        if (raw_x > 0) {
+            raw_x /= 1 + properties_x.offset;
+        } else {
+            raw_x /= 1 - properties_x.offset;
+        }
+    }
+
+    // Apply Y scale correction from offset
+    if (std::abs(properties_y.offset) < 0.5f) {
+        if (raw_y > 0) {
+            raw_y /= 1 + properties_y.offset;
+        } else {
+            raw_y /= 1 - properties_y.offset;
+        }
+    }
+
+    // Invert direction if needed
+    raw_x = properties_x.inverted ? -raw_x : raw_x;
+    raw_y = properties_y.inverted ? -raw_y : raw_y;
+
+    // Set initial values to be formated
+    x = raw_x;
+    y = raw_y;
+
+    // Calculate vector size
+    float r = x * x + y * y;
+    r = std::sqrt(r);
+
+    // TODO(German77): Use deadzone and range of both axis
+
+    // Return zero if values are smaller than the deadzone
+    if (r <= properties_x.deadzone || properties_x.deadzone >= 1.0f) {
+        x = 0;
+        y = 0;
+        return;
+    }
+
+    // Adjust range of joystick
+    const float deadzone_factor =
+        1.0f / r * (r - properties_x.deadzone) / (1.0f - properties_x.deadzone);
+    x = x * deadzone_factor / properties_x.range;
+    y = y * deadzone_factor / properties_x.range;
+    r = r * deadzone_factor / properties_x.range;
+
+    // Normalize joystick
+    if (clamp_value && r > 1.0f) {
+        x /= r;
+        y /= r;
+    }
+}
+
+} // namespace Core::HID

src/core/hid/input_converter.h

@@ -0,0 +1,96 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included
+
+#pragma once
+
+namespace Common::Input {
+struct CallbackStatus;
+enum class BatteryLevel : u32;
+using BatteryStatus = BatteryLevel;
+struct AnalogStatus;
+struct ButtonStatus;
+struct MotionStatus;
+struct StickStatus;
+struct TouchStatus;
+struct TriggerStatus;
+}; // namespace Common::Input
+
+namespace Core::HID {
+
+/**
+ * Converts raw input data into a valid battery status.
+ *
+ * @param callback Supported callbacks: Analog, Battery, Trigger.
+ * @return A valid BatteryStatus object.
+ */
+Common::Input::BatteryStatus TransformToBattery(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid button status. Applies invert properties to the output.
+ *
+ * @param callback Supported callbacks: Analog, Button, Trigger.
+ * @return A valid TouchStatus object.
+ */
+Common::Input::ButtonStatus TransformToButton(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid motion status.
+ *
+ * @param callback Supported callbacks: Motion.
+ * @return A valid TouchStatus object.
+ */
+Common::Input::MotionStatus TransformToMotion(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid stick status. Applies offset, deadzone, range and invert
+ * properties to the output.
+ *
+ * @param callback Supported callbacks: Stick.
+ * @return A valid StickStatus object.
+ */
+Common::Input::StickStatus TransformToStick(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid touch status.
+ *
+ * @param callback Supported callbacks: Touch.
+ * @return A valid TouchStatus object.
+ */
+Common::Input::TouchStatus TransformToTouch(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid trigger status. Applies offset, deadzone, range and
+ * invert properties to the output. Button status uses the threshold property if necessary.
+ *
+ * @param callback Supported callbacks: Analog, Button, Trigger.
+ * @return A valid TriggerStatus object.
+ */
+Common::Input::TriggerStatus TransformToTrigger(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw input data into a valid analog status. Applies offset, deadzone, range and
+ * invert properties to the output.
+ *
+ * @param callback Supported callbacks: Analog.
+ * @return A valid AnalogStatus object.
+ */
+Common::Input::AnalogStatus TransformToAnalog(const Common::Input::CallbackStatus& callback);
+
+/**
+ * Converts raw analog data into a valid analog value
+ * @param analog An analog object containing raw data and properties
+ * @param clamp_value determines if the value needs to be clamped between -1.0f and 1.0f.
+ */
+void SanitizeAnalog(Common::Input::AnalogStatus& analog, bool clamp_value);
+
+/**
+ * Converts raw stick data into a valid stick value
+ * @param analog_x raw analog data and properties for the x-axis
+ * @param analog_y raw analog data and properties for the y-axis
+ * @param clamp_value bool that determines if the value needs to be clamped into the unit circle.
+ */
+void SanitizeStick(Common::Input::AnalogStatus& analog_x, Common::Input::AnalogStatus& analog_y,
+                   bool clamp_value);
+
+} // namespace Core::HID

src/core/hid/input_interpreter.cpp

@@ -3,7 +3,8 @@
 // Refer to the license.txt file included.
 
 #include "core/core.h"
-#include "core/frontend/input_interpreter.h"
+#include "core/hid/hid_types.h"
+#include "core/hid/input_interpreter.h"
 #include "core/hle/service/hid/controllers/npad.h"
 #include "core/hle/service/hid/hid.h"
 #include "core/hle/service/sm/sm.h"
@@ -19,7 +20,7 @@ InputInterpreter::InputInterpreter(Core::System& system)
 InputInterpreter::~InputInterpreter() = default;
 
 void InputInterpreter::PollInput() {
-    const u32 button_state = npad.GetAndResetPressState();
+    const auto button_state = npad.GetAndResetPressState();
 
     previous_index = current_index;
     current_index = (current_index + 1) % button_states.size();
@@ -31,32 +32,30 @@ void InputInterpreter::ResetButtonStates() {
     previous_index = 0;
     current_index = 0;
 
-    button_states[0] = 0xFFFFFFFF;
+    button_states[0] = Core::HID::NpadButton::All;
 
     for (std::size_t i = 1; i < button_states.size(); ++i) {
-        button_states[i] = 0;
+        button_states[i] = Core::HID::NpadButton::None;
     }
 }
 
-bool InputInterpreter::IsButtonPressed(HIDButton button) const {
-    return (button_states[current_index] & (1U << static_cast<u8>(button))) != 0;
+bool InputInterpreter::IsButtonPressed(Core::HID::NpadButton button) const {
+    return True(button_states[current_index] & button);
 }
 
-bool InputInterpreter::IsButtonPressedOnce(HIDButton button) const {
-    const bool current_press =
-        (button_states[current_index] & (1U << static_cast<u8>(button))) != 0;
-    const bool previous_press =
-        (button_states[previous_index] & (1U << static_cast<u8>(button))) != 0;
+bool InputInterpreter::IsButtonPressedOnce(Core::HID::NpadButton button) const {
+    const bool current_press = True(button_states[current_index] & button);
+    const bool previous_press = True(button_states[previous_index] & button);
 
     return current_press && !previous_press;
 }
 
-bool InputInterpreter::IsButtonHeld(HIDButton button) const {
-    u32 held_buttons{button_states[0]};
+bool InputInterpreter::IsButtonHeld(Core::HID::NpadButton button) const {
+    Core::HID::NpadButton held_buttons{button_states[0]};
 
     for (std::size_t i = 1; i < button_states.size(); ++i) {
         held_buttons &= button_states[i];
     }
 
-    return (held_buttons & (1U << static_cast<u8>(button))) != 0;
+    return True(held_buttons & button);
 }

src/core/hid/input_interpreter.h

@@ -12,46 +12,14 @@ namespace Core {
 class System;
 }
 
+namespace Core::HID {
+enum class NpadButton : u64;
+}
+
 namespace Service::HID {
 class Controller_NPad;
 }
 
-enum class HIDButton : u8 {
-    A,
-    B,
-    X,
-    Y,
-    LStick,
-    RStick,
-    L,
-    R,
-    ZL,
-    ZR,
-    Plus,
-    Minus,
-
-    DLeft,
-    DUp,
-    DRight,
-    DDown,
-
-    LStickLeft,
-    LStickUp,
-    LStickRight,
-    LStickDown,
-
-    RStickLeft,
-    RStickUp,
-    RStickRight,
-    RStickDown,
-
-    LeftSL,
-    LeftSR,
-
-    RightSL,
-    RightSR,
-};
-
 /**
  * The InputInterpreter class interfaces with HID to retrieve button press states.
  * Input is intended to be polled every 50ms so that a button is considered to be
@@ -76,7 +44,7 @@ public:
      *
      * @returns True when the button is pressed.
      */
-    [[nodiscard]] bool IsButtonPressed(HIDButton button) const;
+    [[nodiscard]] bool IsButtonPressed(Core::HID::NpadButton button) const;
 
     /**
      * Checks whether any of the buttons in the parameter list is pressed.
@@ -85,7 +53,7 @@ public:
      *
      * @returns True when at least one of the buttons is pressed.
      */
-    template <HIDButton... T>
+    template <Core::HID::NpadButton... T>
     [[nodiscard]] bool IsAnyButtonPressed() {
         return (IsButtonPressed(T) || ...);
     }
@@ -98,7 +66,7 @@ public:
      *
      * @returns True when the button is pressed once.
      */
-    [[nodiscard]] bool IsButtonPressedOnce(HIDButton button) const;
+    [[nodiscard]] bool IsButtonPressedOnce(Core::HID::NpadButton button) const;
 
     /**
      * Checks whether any of the buttons in the parameter list is pressed once.
@@ -107,7 +75,7 @@ public:
      *
      * @returns True when at least one of the buttons is pressed once.
      */
-    template <HIDButton... T>
+    template <Core::HID::NpadButton... T>
     [[nodiscard]] bool IsAnyButtonPressedOnce() const {
         return (IsButtonPressedOnce(T) || ...);
     }
@@ -119,7 +87,7 @@ public:
      *
      * @returns True when the button is held down.
      */
-    [[nodiscard]] bool IsButtonHeld(HIDButton button) const;
+    [[nodiscard]] bool IsButtonHeld(Core::HID::NpadButton button) const;
 
     /**
      * Checks whether any of the buttons in the parameter list is held down.
@@ -128,7 +96,7 @@ public:
      *
      * @returns True when at least one of the buttons is held down.
      */
-    template <HIDButton... T>
+    template <Core::HID::NpadButton... T>
     [[nodiscard]] bool IsAnyButtonHeld() const {
         return (IsButtonHeld(T) || ...);
     }
@@ -137,7 +105,7 @@ private:
     Service::HID::Controller_NPad& npad;
 
     /// Stores 9 consecutive button states polled from HID.
-    std::array<u32, 9> button_states{};
+    std::array<Core::HID::NpadButton, 9> button_states{};
 
     std::size_t previous_index{};
     std::size_t current_index{};

src/core/hid/motion_input.cpp

@@ -2,13 +2,21 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included
 
-#include <random>
 #include "common/math_util.h"
-#include "input_common/motion_input.h"
+#include "core/hid/motion_input.h"
 
-namespace InputCommon {
+namespace Core::HID {
 
-MotionInput::MotionInput(f32 new_kp, f32 new_ki, f32 new_kd) : kp(new_kp), ki(new_ki), kd(new_kd) {}
+MotionInput::MotionInput() {
+    // Initialize PID constants with default values
+    SetPID(0.3f, 0.005f, 0.0f);
+}
+
+void MotionInput::SetPID(f32 new_kp, f32 new_ki, f32 new_kd) {
+    kp = new_kp;
+    ki = new_ki;
+    kd = new_kd;
+}
 
 void MotionInput::SetAcceleration(const Common::Vec3f& acceleration) {
     accel = acceleration;
@@ -65,6 +73,8 @@ void MotionInput::UpdateRotation(u64 elapsed_time) {
     rotations += gyro * sample_period;
 }
 
+// Based on Madgwick's implementation of Mayhony's AHRS algorithm.
+// https://github.com/xioTechnologies/Open-Source-AHRS-With-x-IMU/blob/master/x-IMU%20IMU%20and%20AHRS%20Algorithms/x-IMU%20IMU%20and%20AHRS%20Algorithms/AHRS/MahonyAHRS.cs
 void MotionInput::UpdateOrientation(u64 elapsed_time) {
     if (!IsCalibrated(0.1f)) {
         ResetOrientation();
@@ -190,43 +200,6 @@ Common::Vec3f MotionInput::GetRotations() const {
     return rotations;
 }
 
-Input::MotionStatus MotionInput::GetMotion() const {
-    const Common::Vec3f gyroscope = GetGyroscope();
-    const Common::Vec3f accelerometer = GetAcceleration();
-    const Common::Vec3f rotation = GetRotations();
-    const std::array<Common::Vec3f, 3> orientation = GetOrientation();
-    const Common::Quaternion<f32> quaternion = GetQuaternion();
-    return {accelerometer, gyroscope, rotation, orientation, quaternion};
-}
-
-Input::MotionStatus MotionInput::GetRandomMotion(int accel_magnitude, int gyro_magnitude) const {
-    std::random_device device;
-    std::mt19937 gen(device());
-    std::uniform_int_distribution<s16> distribution(-1000, 1000);
-    const Common::Vec3f gyroscope{
-        static_cast<f32>(distribution(gen)) * 0.001f,
-        static_cast<f32>(distribution(gen)) * 0.001f,
-        static_cast<f32>(distribution(gen)) * 0.001f,
-    };
-    const Common::Vec3f accelerometer{
-        static_cast<f32>(distribution(gen)) * 0.001f,
-        static_cast<f32>(distribution(gen)) * 0.001f,
-        static_cast<f32>(distribution(gen)) * 0.001f,
-    };
-    constexpr Common::Vec3f rotation;
-    constexpr std::array orientation{
-        Common::Vec3f{1.0f, 0.0f, 0.0f},
-        Common::Vec3f{0.0f, 1.0f, 0.0f},
-        Common::Vec3f{0.0f, 0.0f, 1.0f},
-    };
-    constexpr Common::Quaternion<f32> quaternion{
-        {0.0f, 0.0f, 0.0f},
-        1.0f,
-    };
-    return {accelerometer * accel_magnitude, gyroscope * gyro_magnitude, rotation, orientation,
-            quaternion};
-}
-
 void MotionInput::ResetOrientation() {
     if (!reset_enabled || only_accelerometer) {
         return;
@@ -304,4 +277,4 @@ void MotionInput::SetOrientationFromAccelerometer() {
         quat = quat.Normalized();
     }
 }
-} // namespace InputCommon
+} // namespace Core::HID

src/core/hid/motion_input.h

@@ -7,13 +7,12 @@
 #include "common/common_types.h"
 #include "common/quaternion.h"
 #include "common/vector_math.h"
-#include "core/frontend/input.h"
 
-namespace InputCommon {
+namespace Core::HID {
 
 class MotionInput {
 public:
-    explicit MotionInput(f32 new_kp, f32 new_ki, f32 new_kd);
+    explicit MotionInput();
 
     MotionInput(const MotionInput&) = default;
     MotionInput& operator=(const MotionInput&) = default;
@@ -21,6 +20,7 @@ public:
     MotionInput(MotionInput&&) = default;
     MotionInput& operator=(MotionInput&&) = default;
 
+    void SetPID(f32 new_kp, f32 new_ki, f32 new_kd);
     void SetAcceleration(const Common::Vec3f& acceleration);
     void SetGyroscope(const Common::Vec3f& gyroscope);
     void SetQuaternion(const Common::Quaternion<f32>& quaternion);
@@ -38,9 +38,6 @@ public:
     [[nodiscard]] Common::Vec3f GetGyroscope() const;
     [[nodiscard]] Common::Vec3f GetRotations() const;
     [[nodiscard]] Common::Quaternion<f32> GetQuaternion() const;
-    [[nodiscard]] Input::MotionStatus GetMotion() const;
-    [[nodiscard]] Input::MotionStatus GetRandomMotion(int accel_magnitude,
-                                                      int gyro_magnitude) const;
 
     [[nodiscard]] bool IsMoving(f32 sensitivity) const;
     [[nodiscard]] bool IsCalibrated(f32 sensitivity) const;
@@ -59,16 +56,32 @@ private:
     Common::Vec3f integral_error;
     Common::Vec3f derivative_error;
 
+    // Quaternion containing the device orientation
     Common::Quaternion<f32> quat{{0.0f, 0.0f, -1.0f}, 0.0f};
+
+    // Number of full rotations in each axis
     Common::Vec3f rotations;
+
+    // Acceleration vector measurement in G force
     Common::Vec3f accel;
+
+    // Gyroscope vector measurement in radians/s.
     Common::Vec3f gyro;
+
+    // Vector to be substracted from gyro measurements
     Common::Vec3f gyro_drift;
 
+    // Minimum gyro amplitude to detect if the device is moving
     f32 gyro_threshold = 0.0f;
+
+    // Number of invalid sequential data
     u32 reset_counter = 0;
+
+    // If the provided data is invalid the device will be autocalibrated
     bool reset_enabled = true;
+
+    // Use accelerometer values to calculate position
     bool only_accelerometer = true;
 };
 
-} // namespace InputCommon
+} // namespace Core::HID

src/core/hle/kernel/init/init_slab_setup.cpp

@@ -9,6 +9,7 @@
 #include "core/core.h"
 #include "core/hardware_properties.h"
 #include "core/hle/kernel/init/init_slab_setup.h"
+#include "core/hle/kernel/k_code_memory.h"
 #include "core/hle/kernel/k_event.h"
 #include "core/hle/kernel/k_memory_layout.h"
 #include "core/hle/kernel/k_memory_manager.h"
@@ -32,6 +33,7 @@ namespace Kernel::Init {
     HANDLER(KPort, (SLAB_COUNT(KPort)), ##__VA_ARGS__)                                             \
     HANDLER(KSharedMemory, (SLAB_COUNT(KSharedMemory)), ##__VA_ARGS__)                             \
     HANDLER(KTransferMemory, (SLAB_COUNT(KTransferMemory)), ##__VA_ARGS__)                         \
+    HANDLER(KCodeMemory, (SLAB_COUNT(KCodeMemory)), ##__VA_ARGS__)                                 \
     HANDLER(KSession, (SLAB_COUNT(KSession)), ##__VA_ARGS__)                                       \
     HANDLER(KResourceLimit, (SLAB_COUNT(KResourceLimit)), ##__VA_ARGS__)
 

src/core/hle/kernel/k_address_arbiter.cpp

@@ -8,6 +8,7 @@
 #include "core/hle/kernel/k_scheduler.h"
 #include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
 #include "core/hle/kernel/k_thread.h"
+#include "core/hle/kernel/k_thread_queue.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/svc_results.h"
 #include "core/hle/kernel/time_manager.h"
@@ -28,7 +29,7 @@ bool ReadFromUser(Core::System& system, s32* out, VAddr address) {
 
 bool DecrementIfLessThan(Core::System& system, s32* out, VAddr address, s32 value) {
     auto& monitor = system.Monitor();
-    const auto current_core = system.CurrentCoreIndex();
+    const auto current_core = system.Kernel().CurrentPhysicalCoreIndex();
 
     // TODO(bunnei): We should disable interrupts here via KScopedInterruptDisable.
     // TODO(bunnei): We should call CanAccessAtomic(..) here.
@@ -58,7 +59,7 @@ bool DecrementIfLessThan(Core::System& system, s32* out, VAddr address, s32 valu
 
 bool UpdateIfEqual(Core::System& system, s32* out, VAddr address, s32 value, s32 new_value) {
     auto& monitor = system.Monitor();
-    const auto current_core = system.CurrentCoreIndex();
+    const auto current_core = system.Kernel().CurrentPhysicalCoreIndex();
 
     // TODO(bunnei): We should disable interrupts here via KScopedInterruptDisable.
     // TODO(bunnei): We should call CanAccessAtomic(..) here.
@@ -85,6 +86,27 @@ bool UpdateIfEqual(Core::System& system, s32* out, VAddr address, s32 value, s32
     return true;
 }
 
+class ThreadQueueImplForKAddressArbiter final : public KThreadQueue {
+public:
+    explicit ThreadQueueImplForKAddressArbiter(KernelCore& kernel_, KAddressArbiter::ThreadTree* t)
+        : KThreadQueue(kernel_), m_tree(t) {}
+
+    void CancelWait(KThread* waiting_thread, ResultCode wait_result,
+                    bool cancel_timer_task) override {
+        // If the thread is waiting on an address arbiter, remove it from the tree.
+        if (waiting_thread->IsWaitingForAddressArbiter()) {
+            m_tree->erase(m_tree->iterator_to(*waiting_thread));
+            waiting_thread->ClearAddressArbiter();
+        }
+
+        // Invoke the base cancel wait handler.
+        KThreadQueue::CancelWait(waiting_thread, wait_result, cancel_timer_task);
+    }
+
+private:
+    KAddressArbiter::ThreadTree* m_tree;
+};
+
 } // namespace
 
 ResultCode KAddressArbiter::Signal(VAddr addr, s32 count) {
@@ -96,14 +118,14 @@ ResultCode KAddressArbiter::Signal(VAddr addr, s32 count) {
         auto it = thread_tree.nfind_light({addr, -1});
         while ((it != thread_tree.end()) && (count <= 0 || num_waiters < count) &&
                (it->GetAddressArbiterKey() == addr)) {
+            // End the thread's wait.
             KThread* target_thread = std::addressof(*it);
-            target_thread->SetSyncedObject(nullptr, ResultSuccess);
+            target_thread->EndWait(ResultSuccess);
 
             ASSERT(target_thread->IsWaitingForAddressArbiter());
-            target_thread->Wakeup();
+            target_thread->ClearAddressArbiter();
 
             it = thread_tree.erase(it);
-            target_thread->ClearAddressArbiter();
             ++num_waiters;
         }
     }
@@ -129,14 +151,14 @@ ResultCode KAddressArbiter::SignalAndIncrementIfEqual(VAddr addr, s32 value, s32
         auto it = thread_tree.nfind_light({addr, -1});
         while ((it != thread_tree.end()) && (count <= 0 || num_waiters < count) &&
                (it->GetAddressArbiterKey() == addr)) {
+            // End the thread's wait.
             KThread* target_thread = std::addressof(*it);
-            target_thread->SetSyncedObject(nullptr, ResultSuccess);
+            target_thread->EndWait(ResultSuccess);
 
             ASSERT(target_thread->IsWaitingForAddressArbiter());
-            target_thread->Wakeup();
+            target_thread->ClearAddressArbiter();
 
             it = thread_tree.erase(it);
-            target_thread->ClearAddressArbiter();
             ++num_waiters;
         }
     }
@@ -197,14 +219,14 @@ ResultCode KAddressArbiter::SignalAndModifyByWaitingCountIfEqual(VAddr addr, s32
 
         while ((it != thread_tree.end()) && (count <= 0 || num_waiters < count) &&
                (it->GetAddressArbiterKey() == addr)) {
+            // End the thread's wait.
             KThread* target_thread = std::addressof(*it);
-            target_thread->SetSyncedObject(nullptr, ResultSuccess);
+            target_thread->EndWait(ResultSuccess);
 
             ASSERT(target_thread->IsWaitingForAddressArbiter());
-            target_thread->Wakeup();
+            target_thread->ClearAddressArbiter();
 
             it = thread_tree.erase(it);
-            target_thread->ClearAddressArbiter();
             ++num_waiters;
         }
     }
@@ -214,6 +236,7 @@ ResultCode KAddressArbiter::SignalAndModifyByWaitingCountIfEqual(VAddr addr, s32
 ResultCode KAddressArbiter::WaitIfLessThan(VAddr addr, s32 value, bool decrement, s64 timeout) {
     // Prepare to wait.
     KThread* cur_thread = kernel.CurrentScheduler()->GetCurrentThread();
+    ThreadQueueImplForKAddressArbiter wait_queue(kernel, std::addressof(thread_tree));
 
     {
         KScopedSchedulerLockAndSleep slp{kernel, cur_thread, timeout};
@@ -224,9 +247,6 @@ ResultCode KAddressArbiter::WaitIfLessThan(VAddr addr, s32 value, bool decrement
             return ResultTerminationRequested;
         }
 
-        // Set the synced object.
-        cur_thread->SetSyncedObject(nullptr, ResultTimedOut);
-
         // Read the value from userspace.
         s32 user_value{};
         bool succeeded{};
@@ -256,31 +276,20 @@ ResultCode KAddressArbiter::WaitIfLessThan(VAddr addr, s32 value, bool decrement
         // Set the arbiter.
         cur_thread->SetAddressArbiter(&thread_tree, addr);
         thread_tree.insert(*cur_thread);
-        cur_thread->SetState(ThreadState::Waiting);
+
+        // Wait for the thread to finish.
+        cur_thread->BeginWait(std::addressof(wait_queue));
         cur_thread->SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::Arbitration);
     }
 
-    // Cancel the timer wait.
-    kernel.TimeManager().UnscheduleTimeEvent(cur_thread);
-
-    // Remove from the address arbiter.
-    {
-        KScopedSchedulerLock sl(kernel);
-
-        if (cur_thread->IsWaitingForAddressArbiter()) {
-            thread_tree.erase(thread_tree.iterator_to(*cur_thread));
-            cur_thread->ClearAddressArbiter();
-        }
-    }
-
     // Get the result.
-    KSynchronizationObject* dummy{};
-    return cur_thread->GetWaitResult(&dummy);
+    return cur_thread->GetWaitResult();
 }
 
 ResultCode KAddressArbiter::WaitIfEqual(VAddr addr, s32 value, s64 timeout) {
     // Prepare to wait.
     KThread* cur_thread = kernel.CurrentScheduler()->GetCurrentThread();
+    ThreadQueueImplForKAddressArbiter wait_queue(kernel, std::addressof(thread_tree));
 
     {
         KScopedSchedulerLockAndSleep slp{kernel, cur_thread, timeout};
@@ -291,9 +300,6 @@ ResultCode KAddressArbiter::WaitIfEqual(VAddr addr, s32 value, s64 timeout) {
             return ResultTerminationRequested;
         }
 
-        // Set the synced object.
-        cur_thread->SetSyncedObject(nullptr, ResultTimedOut);
-
         // Read the value from userspace.
         s32 user_value{};
         if (!ReadFromUser(system, &user_value, addr)) {
@@ -316,26 +322,14 @@ ResultCode KAddressArbiter::WaitIfEqual(VAddr addr, s32 value, s64 timeout) {
         // Set the arbiter.
         cur_thread->SetAddressArbiter(&thread_tree, addr);
         thread_tree.insert(*cur_thread);
-        cur_thread->SetState(ThreadState::Waiting);
+
+        // Wait for the thread to finish.
+        cur_thread->BeginWait(std::addressof(wait_queue));
         cur_thread->SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::Arbitration);
     }
 
-    // Cancel the timer wait.
-    kernel.TimeManager().UnscheduleTimeEvent(cur_thread);
-
-    // Remove from the address arbiter.
-    {
-        KScopedSchedulerLock sl(kernel);
-
-        if (cur_thread->IsWaitingForAddressArbiter()) {
-            thread_tree.erase(thread_tree.iterator_to(*cur_thread));
-            cur_thread->ClearAddressArbiter();
-        }
-    }
-
     // Get the result.
-    KSynchronizationObject* dummy{};
-    return cur_thread->GetWaitResult(&dummy);
+    return cur_thread->GetWaitResult();
 }
 
 } // namespace Kernel

src/core/hle/kernel/k_auto_object.h

@@ -170,6 +170,10 @@ public:
         }
     }
 
+    const std::string& GetName() const {
+        return name;
+    }
+
 private:
     void RegisterWithKernel();
     void UnregisterWithKernel();

src/core/hle/kernel/k_class_token.cpp

@@ -6,6 +6,7 @@
 #include "core/hle/kernel/k_class_token.h"
 #include "core/hle/kernel/k_client_port.h"
 #include "core/hle/kernel/k_client_session.h"
+#include "core/hle/kernel/k_code_memory.h"
 #include "core/hle/kernel/k_event.h"
 #include "core/hle/kernel/k_port.h"
 #include "core/hle/kernel/k_process.h"
@@ -48,7 +49,7 @@ static_assert(ClassToken<KWritableEvent> == 0b10001001'00000000);
 static_assert(ClassToken<KTransferMemory> == 0b10010001'00000000);
 // static_assert(ClassToken<KDeviceAddressSpace> == 0b01100001'00000000);
 // static_assert(ClassToken<KSessionRequest> == 0b10100001'00000000);
-// static_assert(ClassToken<KCodeMemory> == 0b11000001'00000000);
+static_assert(ClassToken<KCodeMemory> == 0b11000001'00000000);
 
 // Ensure that the token hierarchy is correct.
 
@@ -79,7 +80,7 @@ static_assert(ClassToken<KWritableEvent> == ((0b10001001 << 8) | ClassToken<KAut
 static_assert(ClassToken<KTransferMemory> == ((0b10010001 << 8) | ClassToken<KAutoObject>));
 // static_assert(ClassToken<KDeviceAddressSpace> == ((0b01100001 << 8) | ClassToken<KAutoObject>));
 // static_assert(ClassToken<KSessionRequest> == ((0b10100001 << 8) | ClassToken<KAutoObject>));
-// static_assert(ClassToken<KCodeMemory> == ((0b11000001 << 8) | ClassToken<KAutoObject>));
+static_assert(ClassToken<KCodeMemory> == ((0b11000001 << 8) | ClassToken<KAutoObject>));
 
 // Ensure that the token hierarchy reflects the class hierarchy.
 

src/core/hle/kernel/k_code_memory.cpp

@@ -0,0 +1,146 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/common_types.h"
+#include "core/device_memory.h"
+#include "core/hle/kernel/k_auto_object.h"
+#include "core/hle/kernel/k_code_memory.h"
+#include "core/hle/kernel/k_light_lock.h"
+#include "core/hle/kernel/k_memory_block.h"
+#include "core/hle/kernel/k_page_linked_list.h"
+#include "core/hle/kernel/k_page_table.h"
+#include "core/hle/kernel/k_process.h"
+#include "core/hle/kernel/slab_helpers.h"
+#include "core/hle/kernel/svc_types.h"
+#include "core/hle/result.h"
+
+namespace Kernel {
+
+KCodeMemory::KCodeMemory(KernelCore& kernel_)
+    : KAutoObjectWithSlabHeapAndContainer{kernel_}, m_lock(kernel_) {}
+
+ResultCode KCodeMemory::Initialize(Core::DeviceMemory& device_memory, VAddr addr, size_t size) {
+    // Set members.
+    m_owner = kernel.CurrentProcess();
+
+    // Get the owner page table.
+    auto& page_table = m_owner->PageTable();
+
+    // Construct the page group.
+    KMemoryInfo kBlockInfo = page_table.QueryInfo(addr);
+    m_page_group = KPageLinkedList(kBlockInfo.GetAddress(), kBlockInfo.GetNumPages());
+
+    // Lock the memory.
+    R_TRY(page_table.LockForCodeMemory(addr, size))
+
+    // Clear the memory.
+    for (const auto& block : m_page_group.Nodes()) {
+        std::memset(device_memory.GetPointer(block.GetAddress()), 0xFF, block.GetSize());
+    }
+
+    // Set remaining tracking members.
+    m_address = addr;
+    m_is_initialized = true;
+    m_is_owner_mapped = false;
+    m_is_mapped = false;
+
+    // We succeeded.
+    return ResultSuccess;
+}
+
+void KCodeMemory::Finalize() {
+    // Unlock.
+    if (!m_is_mapped && !m_is_owner_mapped) {
+        const size_t size = m_page_group.GetNumPages() * PageSize;
+        m_owner->PageTable().UnlockForCodeMemory(m_address, size);
+    }
+}
+
+ResultCode KCodeMemory::Map(VAddr address, size_t size) {
+    // Validate the size.
+    R_UNLESS(m_page_group.GetNumPages() == Common::DivideUp(size, PageSize), ResultInvalidSize);
+
+    // Lock ourselves.
+    KScopedLightLock lk(m_lock);
+
+    // Ensure we're not already mapped.
+    R_UNLESS(!m_is_mapped, ResultInvalidState);
+
+    // Map the memory.
+    R_TRY(kernel.CurrentProcess()->PageTable().MapPages(
+        address, m_page_group, KMemoryState::CodeOut, KMemoryPermission::UserReadWrite));
+
+    // Mark ourselves as mapped.
+    m_is_mapped = true;
+
+    return ResultSuccess;
+}
+
+ResultCode KCodeMemory::Unmap(VAddr address, size_t size) {
+    // Validate the size.
+    R_UNLESS(m_page_group.GetNumPages() == Common::DivideUp(size, PageSize), ResultInvalidSize);
+
+    // Lock ourselves.
+    KScopedLightLock lk(m_lock);
+
+    // Unmap the memory.
+    R_TRY(kernel.CurrentProcess()->PageTable().UnmapPages(address, m_page_group,
+                                                          KMemoryState::CodeOut));
+
+    // Mark ourselves as unmapped.
+    m_is_mapped = false;
+
+    return ResultSuccess;
+}
+
+ResultCode KCodeMemory::MapToOwner(VAddr address, size_t size, Svc::MemoryPermission perm) {
+    // Validate the size.
+    R_UNLESS(m_page_group.GetNumPages() == Common::DivideUp(size, PageSize), ResultInvalidSize);
+
+    // Lock ourselves.
+    KScopedLightLock lk(m_lock);
+
+    // Ensure we're not already mapped.
+    R_UNLESS(!m_is_owner_mapped, ResultInvalidState);
+
+    // Convert the memory permission.
+    KMemoryPermission k_perm{};
+    switch (perm) {
+    case Svc::MemoryPermission::Read:
+        k_perm = KMemoryPermission::UserRead;
+        break;
+    case Svc::MemoryPermission::ReadExecute:
+        k_perm = KMemoryPermission::UserReadExecute;
+        break;
+    default:
+        break;
+    }
+
+    // Map the memory.
+    R_TRY(
+        m_owner->PageTable().MapPages(address, m_page_group, KMemoryState::GeneratedCode, k_perm));
+
+    // Mark ourselves as mapped.
+    m_is_owner_mapped = true;
+
+    return ResultSuccess;
+}
+
+ResultCode KCodeMemory::UnmapFromOwner(VAddr address, size_t size) {
+    // Validate the size.
+    R_UNLESS(m_page_group.GetNumPages() == Common::DivideUp(size, PageSize), ResultInvalidSize);
+
+    // Lock ourselves.
+    KScopedLightLock lk(m_lock);
+
+    // Unmap the memory.
+    R_TRY(m_owner->PageTable().UnmapPages(address, m_page_group, KMemoryState::GeneratedCode));
+
+    // Mark ourselves as unmapped.
+    m_is_owner_mapped = false;
+
+    return ResultSuccess;
+}
+
+} // namespace Kernel

src/core/hle/kernel/k_code_memory.h

@@ -0,0 +1,66 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/device_memory.h"
+#include "core/hle/kernel/k_auto_object.h"
+#include "core/hle/kernel/k_light_lock.h"
+#include "core/hle/kernel/k_page_linked_list.h"
+#include "core/hle/kernel/k_process.h"
+#include "core/hle/kernel/slab_helpers.h"
+#include "core/hle/kernel/svc_types.h"
+#include "core/hle/result.h"
+
+namespace Kernel {
+
+enum class CodeMemoryOperation : u32 {
+    Map = 0,
+    MapToOwner = 1,
+    Unmap = 2,
+    UnmapFromOwner = 3,
+};
+
+class KCodeMemory final
+    : public KAutoObjectWithSlabHeapAndContainer<KCodeMemory, KAutoObjectWithList> {
+    KERNEL_AUTOOBJECT_TRAITS(KCodeMemory, KAutoObject);
+
+public:
+    explicit KCodeMemory(KernelCore& kernel_);
+
+    ResultCode Initialize(Core::DeviceMemory& device_memory, VAddr address, size_t size);
+    void Finalize();
+
+    ResultCode Map(VAddr address, size_t size);
+    ResultCode Unmap(VAddr address, size_t size);
+    ResultCode MapToOwner(VAddr address, size_t size, Svc::MemoryPermission perm);
+    ResultCode UnmapFromOwner(VAddr address, size_t size);
+
+    bool IsInitialized() const {
+        return m_is_initialized;
+    }
+    static void PostDestroy([[maybe_unused]] uintptr_t arg) {}
+
+    KProcess* GetOwner() const {
+        return m_owner;
+    }
+    VAddr GetSourceAddress() const {
+        return m_address;
+    }
+    size_t GetSize() const {
+        return m_is_initialized ? m_page_group.GetNumPages() * PageSize : 0;
+    }
+
+private:
+    KPageLinkedList m_page_group{};
+    KProcess* m_owner{};
+    VAddr m_address{};
+    KLightLock m_lock;
+    bool m_is_initialized{};
+    bool m_is_owner_mapped{};
+    bool m_is_mapped{};
+};
+
+} // namespace Kernel

src/core/hle/kernel/k_condition_variable.cpp

@@ -11,6 +11,7 @@
 #include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
 #include "core/hle/kernel/k_synchronization_object.h"
 #include "core/hle/kernel/k_thread.h"
+#include "core/hle/kernel/k_thread_queue.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/svc_common.h"
 #include "core/hle/kernel/svc_results.h"
@@ -33,7 +34,7 @@ bool WriteToUser(Core::System& system, VAddr address, const u32* p) {
 bool UpdateLockAtomic(Core::System& system, u32* out, VAddr address, u32 if_zero,
                       u32 new_orr_mask) {
     auto& monitor = system.Monitor();
-    const auto current_core = system.CurrentCoreIndex();
+    const auto current_core = system.Kernel().CurrentPhysicalCoreIndex();
 
     // Load the value from the address.
     const auto expected = monitor.ExclusiveRead32(current_core, address);
@@ -57,6 +58,48 @@ bool UpdateLockAtomic(Core::System& system, u32* out, VAddr address, u32 if_zero
     return true;
 }
 
+class ThreadQueueImplForKConditionVariableWaitForAddress final : public KThreadQueue {
+public:
+    explicit ThreadQueueImplForKConditionVariableWaitForAddress(KernelCore& kernel_)
+        : KThreadQueue(kernel_) {}
+
+    void CancelWait(KThread* waiting_thread, ResultCode wait_result,
+                    bool cancel_timer_task) override {
+        // Remove the thread as a waiter from its owner.
+        waiting_thread->GetLockOwner()->RemoveWaiter(waiting_thread);
+
+        // Invoke the base cancel wait handler.
+        KThreadQueue::CancelWait(waiting_thread, wait_result, cancel_timer_task);
+    }
+};
+
+class ThreadQueueImplForKConditionVariableWaitConditionVariable final : public KThreadQueue {
+private:
+    KConditionVariable::ThreadTree* m_tree;
+
+public:
+    explicit ThreadQueueImplForKConditionVariableWaitConditionVariable(
+        KernelCore& kernel_, KConditionVariable::ThreadTree* t)
+        : KThreadQueue(kernel_), m_tree(t) {}
+
+    void CancelWait(KThread* waiting_thread, ResultCode wait_result,
+                    bool cancel_timer_task) override {
+        // Remove the thread as a waiter from its owner.
+        if (KThread* owner = waiting_thread->GetLockOwner(); owner != nullptr) {
+            owner->RemoveWaiter(waiting_thread);
+        }
+
+        // If the thread is waiting on a condvar, remove it from the tree.
+        if (waiting_thread->IsWaitingForConditionVariable()) {
+            m_tree->erase(m_tree->iterator_to(*waiting_thread));
+            waiting_thread->ClearConditionVariable();
+        }
+
+        // Invoke the base cancel wait handler.
+        KThreadQueue::CancelWait(waiting_thread, wait_result, cancel_timer_task);
+    }
+};
+
 } // namespace
 
 KConditionVariable::KConditionVariable(Core::System& system_)
@@ -78,84 +121,77 @@ ResultCode KConditionVariable::SignalToAddress(VAddr addr) {
 
         // Determine the next tag.
         u32 next_value{};
-        if (next_owner_thread) {
+        if (next_owner_thread != nullptr) {
             next_value = next_owner_thread->GetAddressKeyValue();
             if (num_waiters > 1) {
                 next_value |= Svc::HandleWaitMask;
             }
 
-            next_owner_thread->SetSyncedObject(nullptr, ResultSuccess);
-            next_owner_thread->Wakeup();
-        }
-
-        // Write the value to userspace.
-        if (!WriteToUser(system, addr, std::addressof(next_value))) {
-            if (next_owner_thread) {
-                next_owner_thread->SetSyncedObject(nullptr, ResultInvalidCurrentMemory);
+            // Write the value to userspace.
+            ResultCode result{ResultSuccess};
+            if (WriteToUser(system, addr, std::addressof(next_value))) [[likely]] {
+                result = ResultSuccess;
+            } else {
+                result = ResultInvalidCurrentMemory;
             }
 
-            return ResultInvalidCurrentMemory;
+            // Signal the next owner thread.
+            next_owner_thread->EndWait(result);
+            return result;
+        } else {
+            // Just write the value to userspace.
+            R_UNLESS(WriteToUser(system, addr, std::addressof(next_value)),
+                     ResultInvalidCurrentMemory);
+
+            return ResultSuccess;
         }
     }
-
-    return ResultSuccess;
 }
 
 ResultCode KConditionVariable::WaitForAddress(Handle handle, VAddr addr, u32 value) {
     KThread* cur_thread = kernel.CurrentScheduler()->GetCurrentThread();
+    ThreadQueueImplForKConditionVariableWaitForAddress wait_queue(kernel);
 
     // Wait for the address.
-    {
-        KScopedAutoObject<KThread> owner_thread;
-        ASSERT(owner_thread.IsNull());
-        {
-            KScopedSchedulerLock sl(kernel);
-            cur_thread->SetSyncedObject(nullptr, ResultSuccess);
-
-            // Check if the thread should terminate.
-            R_UNLESS(!cur_thread->IsTerminationRequested(), ResultTerminationRequested);
-
-            {
-                // Read the tag from userspace.
-                u32 test_tag{};
-                R_UNLESS(ReadFromUser(system, std::addressof(test_tag), addr),
-                         ResultInvalidCurrentMemory);
-
-                // If the tag isn't the handle (with wait mask), we're done.
-                R_UNLESS(test_tag == (handle | Svc::HandleWaitMask), ResultSuccess);
-
-                // Get the lock owner thread.
-                owner_thread =
-                    kernel.CurrentProcess()->GetHandleTable().GetObjectWithoutPseudoHandle<KThread>(
-                        handle);
-                R_UNLESS(owner_thread.IsNotNull(), ResultInvalidHandle);
-
-                // Update the lock.
-                cur_thread->SetAddressKey(addr, value);
-                owner_thread->AddWaiter(cur_thread);
-                cur_thread->SetState(ThreadState::Waiting);
-                cur_thread->SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::ConditionVar);
-                cur_thread->SetMutexWaitAddressForDebugging(addr);
-            }
-        }
-        ASSERT(owner_thread.IsNotNull());
-    }
-
-    // Remove the thread as a waiter from the lock owner.
+    KThread* owner_thread{};
     {
         KScopedSchedulerLock sl(kernel);
-        KThread* owner_thread = cur_thread->GetLockOwner();
-        if (owner_thread != nullptr) {
-            owner_thread->RemoveWaiter(cur_thread);
-        }
+
+        // Check if the thread should terminate.
+        R_UNLESS(!cur_thread->IsTerminationRequested(), ResultTerminationRequested);
+
+        // Read the tag from userspace.
+        u32 test_tag{};
+        R_UNLESS(ReadFromUser(system, std::addressof(test_tag), addr), ResultInvalidCurrentMemory);
+
+        // If the tag isn't the handle (with wait mask), we're done.
+        R_SUCCEED_IF(test_tag != (handle | Svc::HandleWaitMask));
+
+        // Get the lock owner thread.
+        owner_thread = kernel.CurrentProcess()
+                           ->GetHandleTable()
+                           .GetObjectWithoutPseudoHandle<KThread>(handle)
+                           .ReleasePointerUnsafe();
+        R_UNLESS(owner_thread != nullptr, ResultInvalidHandle);
+
+        // Update the lock.
+        cur_thread->SetAddressKey(addr, value);
+        owner_thread->AddWaiter(cur_thread);
+
+        // Begin waiting.
+        cur_thread->BeginWait(std::addressof(wait_queue));
+        cur_thread->SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::ConditionVar);
+        cur_thread->SetMutexWaitAddressForDebugging(addr);
     }
 
+    // Close our reference to the owner thread, now that the wait is over.
+    owner_thread->Close();
+
     // Get the wait result.
-    KSynchronizationObject* dummy{};
-    return cur_thread->GetWaitResult(std::addressof(dummy));
+    return cur_thread->GetWaitResult();
 }
 
-KThread* KConditionVariable::SignalImpl(KThread* thread) {
+void KConditionVariable::SignalImpl(KThread* thread) {
     // Check pre-conditions.
     ASSERT(kernel.GlobalSchedulerContext().IsLocked());
 
@@ -169,18 +205,16 @@ KThread* KConditionVariable::SignalImpl(KThread* thread) {
         // TODO(bunnei): We should disable interrupts here via KScopedInterruptDisable.
         // TODO(bunnei): We should call CanAccessAtomic(..) here.
         can_access = true;
-        if (can_access) {
+        if (can_access) [[likely]] {
             UpdateLockAtomic(system, std::addressof(prev_tag), address, own_tag,
                              Svc::HandleWaitMask);
         }
     }
 
-    KThread* thread_to_close = nullptr;
-    if (can_access) {
+    if (can_access) [[likely]] {
         if (prev_tag == Svc::InvalidHandle) {
             // If nobody held the lock previously, we're all good.
-            thread->SetSyncedObject(nullptr, ResultSuccess);
-            thread->Wakeup();
+            thread->EndWait(ResultSuccess);
         } else {
             // Get the previous owner.
             KThread* owner_thread = kernel.CurrentProcess()
@@ -189,33 +223,22 @@ KThread* KConditionVariable::SignalImpl(KThread* thread) {
                                             static_cast<Handle>(prev_tag & ~Svc::HandleWaitMask))
                                         .ReleasePointerUnsafe();
 
-            if (owner_thread) {
+            if (owner_thread) [[likely]] {
                 // Add the thread as a waiter on the owner.
                 owner_thread->AddWaiter(thread);
-                thread_to_close = owner_thread;
+                owner_thread->Close();
             } else {
                 // The lock was tagged with a thread that doesn't exist.
-                thread->SetSyncedObject(nullptr, ResultInvalidState);
-                thread->Wakeup();
+                thread->EndWait(ResultInvalidState);
             }
         }
     } else {
         // If the address wasn't accessible, note so.
-        thread->SetSyncedObject(nullptr, ResultInvalidCurrentMemory);
-        thread->Wakeup();
+        thread->EndWait(ResultInvalidCurrentMemory);
     }
-
-    return thread_to_close;
 }
 
 void KConditionVariable::Signal(u64 cv_key, s32 count) {
-    // Prepare for signaling.
-    constexpr int MaxThreads = 16;
-
-    KLinkedList<KThread> thread_list{kernel};
-    std::array<KThread*, MaxThreads> thread_array;
-    s32 num_to_close{};
-
     // Perform signaling.
     s32 num_waiters{};
     {
@@ -226,14 +249,7 @@ void KConditionVariable::Signal(u64 cv_key, s32 count) {
                (it->GetConditionVariableKey() == cv_key)) {
             KThread* target_thread = std::addressof(*it);
 
-            if (KThread* thread = SignalImpl(target_thread); thread != nullptr) {
-                if (num_to_close < MaxThreads) {
-                    thread_array[num_to_close++] = thread;
-                } else {
-                    thread_list.push_back(*thread);
-                }
-            }
-
+            this->SignalImpl(target_thread);
             it = thread_tree.erase(it);
             target_thread->ClearConditionVariable();
             ++num_waiters;
@@ -245,27 +261,16 @@ void KConditionVariable::Signal(u64 cv_key, s32 count) {
             WriteToUser(system, cv_key, std::addressof(has_waiter_flag));
         }
     }
-
-    // Close threads in the array.
-    for (auto i = 0; i < num_to_close; ++i) {
-        thread_array[i]->Close();
-    }
-
-    // Close threads in the list.
-    for (auto it = thread_list.begin(); it != thread_list.end(); it = thread_list.erase(it)) {
-        (*it).Close();
-    }
 }
 
 ResultCode KConditionVariable::Wait(VAddr addr, u64 key, u32 value, s64 timeout) {
     // Prepare to wait.
-    KThread* cur_thread = kernel.CurrentScheduler()->GetCurrentThread();
+    KThread* cur_thread = GetCurrentThreadPointer(kernel);
+    ThreadQueueImplForKConditionVariableWaitConditionVariable wait_queue(
+        kernel, std::addressof(thread_tree));
 
     {
-        KScopedSchedulerLockAndSleep slp{kernel, cur_thread, timeout};
-
-        // Set the synced object.
-        cur_thread->SetSyncedObject(nullptr, ResultTimedOut);
+        KScopedSchedulerLockAndSleep slp(kernel, cur_thread, timeout);
 
         // Check that the thread isn't terminating.
         if (cur_thread->IsTerminationRequested()) {
@@ -290,8 +295,7 @@ ResultCode KConditionVariable::Wait(VAddr addr, u64 key, u32 value, s64 timeout)
                 }
 
                 // Wake up the next owner.
-                next_owner_thread->SetSyncedObject(nullptr, ResultSuccess);
-                next_owner_thread->Wakeup();
+                next_owner_thread->EndWait(ResultSuccess);
             }
 
             // Write to the cv key.
@@ -308,40 +312,21 @@ ResultCode KConditionVariable::Wait(VAddr addr, u64 key, u32 value, s64 timeout)
             }
         }
 
+        // If timeout is zero, time out.
+        R_UNLESS(timeout != 0, ResultTimedOut);
+
         // Update condition variable tracking.
-        {
-            cur_thread->SetConditionVariable(std::addressof(thread_tree), addr, key, value);
-            thread_tree.insert(*cur_thread);
-        }
+        cur_thread->SetConditionVariable(std::addressof(thread_tree), addr, key, value);
+        thread_tree.insert(*cur_thread);
 
-        // If the timeout is non-zero, set the thread as waiting.
-        if (timeout != 0) {
-            cur_thread->SetState(ThreadState::Waiting);
-            cur_thread->SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::ConditionVar);
-            cur_thread->SetMutexWaitAddressForDebugging(addr);
-        }
+        // Begin waiting.
+        cur_thread->BeginWait(std::addressof(wait_queue));
+        cur_thread->SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::ConditionVar);
+        cur_thread->SetMutexWaitAddressForDebugging(addr);
     }
 
-    // Cancel the timer wait.
-    kernel.TimeManager().UnscheduleTimeEvent(cur_thread);
-
-    // Remove from the condition variable.
-    {
-        KScopedSchedulerLock sl(kernel);
-
-        if (KThread* owner = cur_thread->GetLockOwner(); owner != nullptr) {
-            owner->RemoveWaiter(cur_thread);
-        }
-
-        if (cur_thread->IsWaitingForConditionVariable()) {
-            thread_tree.erase(thread_tree.iterator_to(*cur_thread));
-            cur_thread->ClearConditionVariable();
-        }
-    }
-
-    // Get the result.
-    KSynchronizationObject* dummy{};
-    return cur_thread->GetWaitResult(std::addressof(dummy));
+    // Get the wait result.
+    return cur_thread->GetWaitResult();
 }
 
 } // namespace Kernel

src/core/hle/kernel/k_condition_variable.h

@@ -34,7 +34,7 @@ public:
     [[nodiscard]] ResultCode Wait(VAddr addr, u64 key, u32 value, s64 timeout);
 
 private:
-    [[nodiscard]] KThread* SignalImpl(KThread* thread);
+    void SignalImpl(KThread* thread);
 
     ThreadTree thread_tree;
 

src/core/hle/kernel/k_handle_table.cpp

@@ -13,6 +13,7 @@ ResultCode KHandleTable::Finalize() {
     // Get the table and clear our record of it.
     u16 saved_table_size = 0;
     {
+        KScopedDisableDispatch dd(kernel);
         KScopedSpinLock lk(m_lock);
 
         std::swap(m_table_size, saved_table_size);
@@ -43,6 +44,7 @@ bool KHandleTable::Remove(Handle handle) {
     // Find the object and free the entry.
     KAutoObject* obj = nullptr;
     {
+        KScopedDisableDispatch dd(kernel);
         KScopedSpinLock lk(m_lock);
 
         if (this->IsValidHandle(handle)) {
@@ -62,6 +64,7 @@ bool KHandleTable::Remove(Handle handle) {
 }
 
 ResultCode KHandleTable::Add(Handle* out_handle, KAutoObject* obj, u16 type) {
+    KScopedDisableDispatch dd(kernel);
     KScopedSpinLock lk(m_lock);
 
     // Never exceed our capacity.
@@ -84,6 +87,7 @@ ResultCode KHandleTable::Add(Handle* out_handle, KAutoObject* obj, u16 type) {
 }
 
 ResultCode KHandleTable::Reserve(Handle* out_handle) {
+    KScopedDisableDispatch dd(kernel);
     KScopedSpinLock lk(m_lock);
 
     // Never exceed our capacity.
@@ -94,6 +98,7 @@ ResultCode KHandleTable::Reserve(Handle* out_handle) {
 }
 
 void KHandleTable::Unreserve(Handle handle) {
+    KScopedDisableDispatch dd(kernel);
     KScopedSpinLock lk(m_lock);
 
     // Unpack the handle.
@@ -112,6 +117,7 @@ void KHandleTable::Unreserve(Handle handle) {
 }
 
 void KHandleTable::Register(Handle handle, KAutoObject* obj, u16 type) {
+    KScopedDisableDispatch dd(kernel);
     KScopedSpinLock lk(m_lock);
 
     // Unpack the handle.

src/core/hle/kernel/k_handle_table.h

@@ -68,6 +68,7 @@ public:
     template <typename T = KAutoObject>
     KScopedAutoObject<T> GetObjectWithoutPseudoHandle(Handle handle) const {
         // Lock and look up in table.
+        KScopedDisableDispatch dd(kernel);
         KScopedSpinLock lk(m_lock);
 
         if constexpr (std::is_same_v<T, KAutoObject>) {
@@ -122,6 +123,7 @@ public:
         size_t num_opened;
         {
             // Lock the table.
+            KScopedDisableDispatch dd(kernel);
             KScopedSpinLock lk(m_lock);
             for (num_opened = 0; num_opened < num_handles; num_opened++) {
                 // Get the current handle.

src/core/hle/kernel/k_light_condition_variable.cpp

@@ -0,0 +1,80 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "core/hle/kernel/k_light_condition_variable.h"
+#include "core/hle/kernel/k_scheduler.h"
+#include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
+#include "core/hle/kernel/k_thread_queue.h"
+#include "core/hle/kernel/svc_results.h"
+
+namespace Kernel {
+
+namespace {
+
+class ThreadQueueImplForKLightConditionVariable final : public KThreadQueue {
+public:
+    ThreadQueueImplForKLightConditionVariable(KernelCore& kernel_, KThread::WaiterList* wl,
+                                              bool term)
+        : KThreadQueue(kernel_), m_wait_list(wl), m_allow_terminating_thread(term) {}
+
+    void CancelWait(KThread* waiting_thread, ResultCode wait_result,
+                    bool cancel_timer_task) override {
+        // Only process waits if we're allowed to.
+        if (ResultTerminationRequested == wait_result && m_allow_terminating_thread) {
+            return;
+        }
+
+        // Remove the thread from the waiting thread from the light condition variable.
+        m_wait_list->erase(m_wait_list->iterator_to(*waiting_thread));
+
+        // Invoke the base cancel wait handler.
+        KThreadQueue::CancelWait(waiting_thread, wait_result, cancel_timer_task);
+    }
+
+private:
+    KThread::WaiterList* m_wait_list;
+    bool m_allow_terminating_thread;
+};
+
+} // namespace
+
+void KLightConditionVariable::Wait(KLightLock* lock, s64 timeout, bool allow_terminating_thread) {
+    // Create thread queue.
+    KThread* owner = GetCurrentThreadPointer(kernel);
+
+    ThreadQueueImplForKLightConditionVariable wait_queue(kernel, std::addressof(wait_list),
+                                                         allow_terminating_thread);
+
+    // Sleep the thread.
+    {
+        KScopedSchedulerLockAndSleep lk(kernel, owner, timeout);
+
+        if (!allow_terminating_thread && owner->IsTerminationRequested()) {
+            lk.CancelSleep();
+            return;
+        }
+
+        lock->Unlock();
+
+        // Add the thread to the queue.
+        wait_list.push_back(*owner);
+
+        // Begin waiting.
+        owner->BeginWait(std::addressof(wait_queue));
+    }
+
+    // Re-acquire the lock.
+    lock->Lock();
+}
+
+void KLightConditionVariable::Broadcast() {
+    KScopedSchedulerLock lk(kernel);
+
+    // Signal all threads.
+    for (auto it = wait_list.begin(); it != wait_list.end(); it = wait_list.erase(it)) {
+        it->EndWait(ResultSuccess);
+    }
+}
+
+} // namespace Kernel

src/core/hle/kernel/k_light_condition_variable.h

@@ -2,72 +2,24 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-// This file references various implementation details from Atmosphere, an open-source firmware for
-// the Nintendo Switch. Copyright 2018-2020 Atmosphere-NX.
-
 #pragma once
 
 #include "common/common_types.h"
-#include "core/hle/kernel/k_scheduler.h"
-#include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
-#include "core/hle/kernel/time_manager.h"
+#include "core/hle/kernel/k_thread.h"
 
 namespace Kernel {
+
 class KernelCore;
+class KLightLock;
 
 class KLightConditionVariable {
 public:
     explicit KLightConditionVariable(KernelCore& kernel_) : kernel{kernel_} {}
 
-    void Wait(KLightLock* lock, s64 timeout = -1, bool allow_terminating_thread = true) {
-        WaitImpl(lock, timeout, allow_terminating_thread);
-    }
-
-    void Broadcast() {
-        KScopedSchedulerLock lk{kernel};
-
-        // Signal all threads.
-        for (auto& thread : wait_list) {
-            thread.SetState(ThreadState::Runnable);
-        }
-    }
+    void Wait(KLightLock* lock, s64 timeout = -1, bool allow_terminating_thread = true);
+    void Broadcast();
 
 private:
-    void WaitImpl(KLightLock* lock, s64 timeout, bool allow_terminating_thread) {
-        KThread* owner = GetCurrentThreadPointer(kernel);
-
-        // Sleep the thread.
-        {
-            KScopedSchedulerLockAndSleep lk{kernel, owner, timeout};
-
-            if (!allow_terminating_thread && owner->IsTerminationRequested()) {
-                lk.CancelSleep();
-                return;
-            }
-
-            lock->Unlock();
-
-            // Set the thread as waiting.
-            GetCurrentThread(kernel).SetState(ThreadState::Waiting);
-
-            // Add the thread to the queue.
-            wait_list.push_back(GetCurrentThread(kernel));
-        }
-
-        // Remove the thread from the wait list.
-        {
-            KScopedSchedulerLock sl{kernel};
-
-            wait_list.erase(wait_list.iterator_to(GetCurrentThread(kernel)));
-        }
-
-        // Cancel the task that the sleep setup.
-        kernel.TimeManager().UnscheduleTimeEvent(owner);
-
-        // Re-acquire the lock.
-        lock->Lock();
-    }
-
     KernelCore& kernel;
     KThread::WaiterList wait_list{};
 };

src/core/hle/kernel/k_light_lock.cpp

@@ -5,44 +5,59 @@
 #include "core/hle/kernel/k_light_lock.h"
 #include "core/hle/kernel/k_scheduler.h"
 #include "core/hle/kernel/k_thread.h"
+#include "core/hle/kernel/k_thread_queue.h"
 #include "core/hle/kernel/kernel.h"
 
 namespace Kernel {
 
+namespace {
+
+class ThreadQueueImplForKLightLock final : public KThreadQueue {
+public:
+    explicit ThreadQueueImplForKLightLock(KernelCore& kernel_) : KThreadQueue(kernel_) {}
+
+    void CancelWait(KThread* waiting_thread, ResultCode wait_result,
+                    bool cancel_timer_task) override {
+        // Remove the thread as a waiter from its owner.
+        if (KThread* owner = waiting_thread->GetLockOwner(); owner != nullptr) {
+            owner->RemoveWaiter(waiting_thread);
+        }
+
+        // Invoke the base cancel wait handler.
+        KThreadQueue::CancelWait(waiting_thread, wait_result, cancel_timer_task);
+    }
+};
+
+} // namespace
+
 void KLightLock::Lock() {
     const uintptr_t cur_thread = reinterpret_cast<uintptr_t>(GetCurrentThreadPointer(kernel));
-    const uintptr_t cur_thread_tag = (cur_thread | 1);
 
     while (true) {
         uintptr_t old_tag = tag.load(std::memory_order_relaxed);
 
-        while (!tag.compare_exchange_weak(old_tag, (old_tag == 0) ? cur_thread : old_tag | 1,
+        while (!tag.compare_exchange_weak(old_tag, (old_tag == 0) ? cur_thread : (old_tag | 1),
                                           std::memory_order_acquire)) {
-            if ((old_tag | 1) == cur_thread_tag) {
-                return;
-            }
         }
 
-        if ((old_tag == 0) || ((old_tag | 1) == cur_thread_tag)) {
+        if (old_tag == 0 || this->LockSlowPath(old_tag | 1, cur_thread)) {
             break;
         }
-
-        LockSlowPath(old_tag | 1, cur_thread);
     }
 }
 
 void KLightLock::Unlock() {
     const uintptr_t cur_thread = reinterpret_cast<uintptr_t>(GetCurrentThreadPointer(kernel));
+
     uintptr_t expected = cur_thread;
-    do {
-        if (expected != cur_thread) {
-            return UnlockSlowPath(cur_thread);
-        }
-    } while (!tag.compare_exchange_weak(expected, 0, std::memory_order_release));
+    if (!tag.compare_exchange_strong(expected, 0, std::memory_order_release)) {
+        this->UnlockSlowPath(cur_thread);
+    }
 }
 
-void KLightLock::LockSlowPath(uintptr_t _owner, uintptr_t _cur_thread) {
+bool KLightLock::LockSlowPath(uintptr_t _owner, uintptr_t _cur_thread) {
     KThread* cur_thread = reinterpret_cast<KThread*>(_cur_thread);
+    ThreadQueueImplForKLightLock wait_queue(kernel);
 
     // Pend the current thread waiting on the owner thread.
     {
@@ -50,7 +65,7 @@ void KLightLock::LockSlowPath(uintptr_t _owner, uintptr_t _cur_thread) {
 
         // Ensure we actually have locking to do.
         if (tag.load(std::memory_order_relaxed) != _owner) {
-            return;
+            return false;
         }
 
         // Add the current thread as a waiter on the owner.
@@ -58,22 +73,15 @@ void KLightLock::LockSlowPath(uintptr_t _owner, uintptr_t _cur_thread) {
         cur_thread->SetAddressKey(reinterpret_cast<uintptr_t>(std::addressof(tag)));
         owner_thread->AddWaiter(cur_thread);
 
-        // Set thread states.
-        cur_thread->SetState(ThreadState::Waiting);
+        // Begin waiting to hold the lock.
+        cur_thread->BeginWait(std::addressof(wait_queue));
 
         if (owner_thread->IsSuspended()) {
             owner_thread->ContinueIfHasKernelWaiters();
         }
     }
 
-    // We're no longer waiting on the lock owner.
-    {
-        KScopedSchedulerLock sl{kernel};
-
-        if (KThread* owner_thread = cur_thread->GetLockOwner(); owner_thread != nullptr) {
-            owner_thread->RemoveWaiter(cur_thread);
-        }
-    }
+    return true;
 }
 
 void KLightLock::UnlockSlowPath(uintptr_t _cur_thread) {
@@ -81,22 +89,20 @@ void KLightLock::UnlockSlowPath(uintptr_t _cur_thread) {
 
     // Unlock.
     {
-        KScopedSchedulerLock sl{kernel};
+        KScopedSchedulerLock sl(kernel);
 
         // Get the next owner.
-        s32 num_waiters = 0;
+        s32 num_waiters;
         KThread* next_owner = owner_thread->RemoveWaiterByKey(
             std::addressof(num_waiters), reinterpret_cast<uintptr_t>(std::addressof(tag)));
 
         // Pass the lock to the next owner.
         uintptr_t next_tag = 0;
         if (next_owner != nullptr) {
-            next_tag = reinterpret_cast<uintptr_t>(next_owner);
-            if (num_waiters > 1) {
-                next_tag |= 0x1;
-            }
+            next_tag =
+                reinterpret_cast<uintptr_t>(next_owner) | static_cast<uintptr_t>(num_waiters > 1);
 
-            next_owner->SetState(ThreadState::Runnable);
+            next_owner->EndWait(ResultSuccess);
 
             if (next_owner->IsSuspended()) {
                 next_owner->ContinueIfHasKernelWaiters();
@@ -110,7 +116,7 @@ void KLightLock::UnlockSlowPath(uintptr_t _cur_thread) {
         }
 
         // Write the new tag value.
-        tag.store(next_tag);
+        tag.store(next_tag, std::memory_order_release);
     }
 }
 

src/core/hle/kernel/k_light_lock.h

@@ -20,7 +20,7 @@ public:
 
     void Unlock();
 
-    void LockSlowPath(uintptr_t owner, uintptr_t cur_thread);
+    bool LockSlowPath(uintptr_t owner, uintptr_t cur_thread);
 
     void UnlockSlowPath(uintptr_t cur_thread);
 

src/core/hle/kernel/k_memory_block.h

@@ -131,6 +131,26 @@ enum class KMemoryPermission : u8 {
 
     UserMask = static_cast<u8>(Svc::MemoryPermission::Read | Svc::MemoryPermission::Write |
                                Svc::MemoryPermission::Execute),
+
+    KernelShift = 3,
+
+    KernelRead = Read << KernelShift,
+    KernelWrite = Write << KernelShift,
+    KernelExecute = Execute << KernelShift,
+
+    NotMapped = (1 << (2 * KernelShift)),
+
+    KernelReadWrite = KernelRead | KernelWrite,
+    KernelReadExecute = KernelRead | KernelExecute,
+
+    UserRead = Read | KernelRead,
+    UserWrite = Write | KernelWrite,
+    UserExecute = Execute,
+
+    UserReadWrite = UserRead | UserWrite,
+    UserReadExecute = UserRead | UserExecute,
+
+    IpcLockChangeMask = NotMapped | UserReadWrite
 };
 DECLARE_ENUM_FLAG_OPERATORS(KMemoryPermission);
 

src/core/hle/kernel/k_page_linked_list.h

@@ -27,6 +27,10 @@ public:
             return num_pages;
         }
 
+        constexpr std::size_t GetSize() const {
+            return GetNumPages() * PageSize;
+        }
+
     private:
         u64 addr{};
         std::size_t num_pages{};

src/core/hle/kernel/k_page_table.cpp

@@ -368,6 +368,33 @@ ResultCode KPageTable::UnmapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, st
     return ResultSuccess;
 }
 
+ResultCode KPageTable::UnmapProcessMemory(VAddr dst_addr, std::size_t size,
+                                          KPageTable& src_page_table, VAddr src_addr) {
+    std::lock_guard lock{page_table_lock};
+
+    const std::size_t num_pages{size / PageSize};
+
+    // Check that the memory is mapped in the destination process.
+    size_t num_allocator_blocks;
+    R_TRY(CheckMemoryState(&num_allocator_blocks, dst_addr, size, KMemoryState::All,
+                           KMemoryState::SharedCode, KMemoryPermission::UserReadWrite,
+                           KMemoryPermission::UserReadWrite, KMemoryAttribute::All,
+                           KMemoryAttribute::None));
+
+    // Check that the memory is mapped in the source process.
+    R_TRY(src_page_table.CheckMemoryState(src_addr, size, KMemoryState::FlagCanMapProcess,
+                                          KMemoryState::FlagCanMapProcess, KMemoryPermission::None,
+                                          KMemoryPermission::None, KMemoryAttribute::All,
+                                          KMemoryAttribute::None));
+
+    CASCADE_CODE(Operate(dst_addr, num_pages, KMemoryPermission::None, OperationType::Unmap));
+
+    // Apply the memory block update.
+    block_manager->Update(dst_addr, num_pages, KMemoryState::Free, KMemoryPermission::None,
+                          KMemoryAttribute::None);
+
+    return ResultSuccess;
+}
 void KPageTable::MapPhysicalMemory(KPageLinkedList& page_linked_list, VAddr start, VAddr end) {
     auto node{page_linked_list.Nodes().begin()};
     PAddr map_addr{node->GetAddress()};
@@ -685,8 +712,8 @@ ResultCode KPageTable::UnmapPages(VAddr addr, KPageLinkedList& page_linked_list,
     return ResultSuccess;
 }
 
-ResultCode KPageTable::SetCodeMemoryPermission(VAddr addr, std::size_t size,
-                                               KMemoryPermission perm) {
+ResultCode KPageTable::SetProcessMemoryPermission(VAddr addr, std::size_t size,
+                                                  KMemoryPermission perm) {
 
     std::lock_guard lock{page_table_lock};
 
@@ -942,6 +969,60 @@ ResultCode KPageTable::UnlockForDeviceAddressSpace(VAddr addr, std::size_t size)
     return ResultSuccess;
 }
 
+ResultCode KPageTable::LockForCodeMemory(VAddr addr, std::size_t size) {
+    std::lock_guard lock{page_table_lock};
+
+    KMemoryPermission new_perm = KMemoryPermission::NotMapped | KMemoryPermission::KernelReadWrite;
+
+    KMemoryPermission old_perm{};
+
+    if (const ResultCode result{CheckMemoryState(
+            nullptr, &old_perm, nullptr, addr, size, KMemoryState::FlagCanCodeMemory,
+            KMemoryState::FlagCanCodeMemory, KMemoryPermission::Mask,
+            KMemoryPermission::UserReadWrite, KMemoryAttribute::All, KMemoryAttribute::None)};
+        result.IsError()) {
+        return result;
+    }
+
+    new_perm = (new_perm != KMemoryPermission::None) ? new_perm : old_perm;
+
+    block_manager->UpdateLock(
+        addr, size / PageSize,
+        [](KMemoryBlockManager::iterator block, KMemoryPermission permission) {
+            block->ShareToDevice(permission);
+        },
+        new_perm);
+
+    return ResultSuccess;
+}
+
+ResultCode KPageTable::UnlockForCodeMemory(VAddr addr, std::size_t size) {
+    std::lock_guard lock{page_table_lock};
+
+    KMemoryPermission new_perm = KMemoryPermission::UserReadWrite;
+
+    KMemoryPermission old_perm{};
+
+    if (const ResultCode result{CheckMemoryState(
+            nullptr, &old_perm, nullptr, addr, size, KMemoryState::FlagCanCodeMemory,
+            KMemoryState::FlagCanCodeMemory, KMemoryPermission::None, KMemoryPermission::None,
+            KMemoryAttribute::All, KMemoryAttribute::Locked)};
+        result.IsError()) {
+        return result;
+    }
+
+    new_perm = (new_perm != KMemoryPermission::None) ? new_perm : old_perm;
+
+    block_manager->UpdateLock(
+        addr, size / PageSize,
+        [](KMemoryBlockManager::iterator block, KMemoryPermission permission) {
+            block->UnshareToDevice(permission);
+        },
+        new_perm);
+
+    return ResultSuccess;
+}
+
 ResultCode KPageTable::InitializeMemoryLayout(VAddr start, VAddr end) {
     block_manager = std::make_unique<KMemoryBlockManager>(start, end);
 
@@ -1231,4 +1312,42 @@ ResultCode KPageTable::CheckMemoryState(KMemoryState* out_state, KMemoryPermissi
     return ResultSuccess;
 }
 
+ResultCode KPageTable::CheckMemoryState(size_t* out_blocks_needed, VAddr addr, size_t size,
+                                        KMemoryState state_mask, KMemoryState state,
+                                        KMemoryPermission perm_mask, KMemoryPermission perm,
+                                        KMemoryAttribute attr_mask, KMemoryAttribute attr) const {
+    // Get information about the first block.
+    const VAddr last_addr = addr + size - 1;
+    KMemoryBlockManager::const_iterator it{block_manager->FindIterator(addr)};
+    KMemoryInfo info = it->GetMemoryInfo();
+
+    // If the start address isn't aligned, we need a block.
+    const size_t blocks_for_start_align =
+        (Common::AlignDown(addr, PageSize) != info.GetAddress()) ? 1 : 0;
+
+    while (true) {
+        // Validate against the provided masks.
+        R_TRY(CheckMemoryState(info, state_mask, state, perm_mask, perm, attr_mask, attr));
+
+        // Break once we're done.
+        if (last_addr <= info.GetLastAddress()) {
+            break;
+        }
+
+        // Advance our iterator.
+        it++;
+        info = it->GetMemoryInfo();
+    }
+
+    // If the end address isn't aligned, we need a block.
+    const size_t blocks_for_end_align =
+        (Common::AlignUp(addr + size, PageSize) != info.GetEndAddress()) ? 1 : 0;
+
+    if (out_blocks_needed != nullptr) {
+        *out_blocks_needed = blocks_for_start_align + blocks_for_end_align;
+    }
+
+    return ResultSuccess;
+}
+
 } // namespace Kernel

src/core/hle/kernel/k_page_table.h

@@ -33,6 +33,8 @@ public:
                               KMemoryPermission perm);
     ResultCode MapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std::size_t size);
     ResultCode UnmapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std::size_t size);
+    ResultCode UnmapProcessMemory(VAddr dst_addr, std::size_t size, KPageTable& src_page_table,
+                                  VAddr src_addr);
     ResultCode MapPhysicalMemory(VAddr addr, std::size_t size);
     ResultCode UnmapPhysicalMemory(VAddr addr, std::size_t size);
     ResultCode UnmapMemory(VAddr addr, std::size_t size);
@@ -41,7 +43,7 @@ public:
     ResultCode MapPages(VAddr addr, KPageLinkedList& page_linked_list, KMemoryState state,
                         KMemoryPermission perm);
     ResultCode UnmapPages(VAddr addr, KPageLinkedList& page_linked_list, KMemoryState state);
-    ResultCode SetCodeMemoryPermission(VAddr addr, std::size_t size, KMemoryPermission perm);
+    ResultCode SetProcessMemoryPermission(VAddr addr, std::size_t size, KMemoryPermission perm);
     KMemoryInfo QueryInfo(VAddr addr);
     ResultCode ReserveTransferMemory(VAddr addr, std::size_t size, KMemoryPermission perm);
     ResultCode ResetTransferMemory(VAddr addr, std::size_t size);
@@ -55,6 +57,8 @@ public:
                                           KMemoryPermission perm, PAddr map_addr = 0);
     ResultCode LockForDeviceAddressSpace(VAddr addr, std::size_t size);
     ResultCode UnlockForDeviceAddressSpace(VAddr addr, std::size_t size);
+    ResultCode LockForCodeMemory(VAddr addr, std::size_t size);
+    ResultCode UnlockForCodeMemory(VAddr addr, std::size_t size);
 
     Common::PageTable& PageTableImpl() {
         return page_table_impl;
@@ -115,6 +119,10 @@ private:
         return CheckMemoryState(nullptr, nullptr, nullptr, addr, size, state_mask, state, perm_mask,
                                 perm, attr_mask, attr, ignore_attr);
     }
+    ResultCode CheckMemoryState(size_t* out_blocks_needed, VAddr addr, size_t size,
+                                KMemoryState state_mask, KMemoryState state,
+                                KMemoryPermission perm_mask, KMemoryPermission perm,
+                                KMemoryAttribute attr_mask, KMemoryAttribute attr) const;
 
     std::recursive_mutex page_table_lock;
     std::unique_ptr<KMemoryBlockManager> block_manager;

src/core/hle/kernel/k_process.cpp

@@ -60,6 +60,7 @@ void SetupMainThread(Core::System& system, KProcess& owner_process, u32 priority
     thread->GetContext64().cpu_registers[0] = 0;
     thread->GetContext32().cpu_registers[1] = thread_handle;
     thread->GetContext64().cpu_registers[1] = thread_handle;
+    thread->DisableDispatch();
 
     auto& kernel = system.Kernel();
     // Threads by default are dormant, wake up the main thread so it runs when the scheduler fires
@@ -227,12 +228,15 @@ void KProcess::PinCurrentThread() {
     const s32 core_id = GetCurrentCoreId(kernel);
     KThread* cur_thread = GetCurrentThreadPointer(kernel);
 
-    // Pin it.
-    PinThread(core_id, cur_thread);
-    cur_thread->Pin();
+    // If the thread isn't terminated, pin it.
+    if (!cur_thread->IsTerminationRequested()) {
+        // Pin it.
+        PinThread(core_id, cur_thread);
+        cur_thread->Pin();
 
-    // An update is needed.
-    KScheduler::SetSchedulerUpdateNeeded(kernel);
+        // An update is needed.
+        KScheduler::SetSchedulerUpdateNeeded(kernel);
+    }
 }
 
 void KProcess::UnpinCurrentThread() {
@@ -250,6 +254,20 @@ void KProcess::UnpinCurrentThread() {
     KScheduler::SetSchedulerUpdateNeeded(kernel);
 }
 
+void KProcess::UnpinThread(KThread* thread) {
+    ASSERT(kernel.GlobalSchedulerContext().IsLocked());
+
+    // Get the thread's core id.
+    const auto core_id = thread->GetActiveCore();
+
+    // Unpin it.
+    UnpinThread(core_id, thread);
+    thread->Unpin();
+
+    // An update is needed.
+    KScheduler::SetSchedulerUpdateNeeded(kernel);
+}
+
 ResultCode KProcess::AddSharedMemory(KSharedMemory* shmem, [[maybe_unused]] VAddr address,
                                      [[maybe_unused]] size_t size) {
     // Lock ourselves, to prevent concurrent access.
@@ -528,7 +546,7 @@ void KProcess::LoadModule(CodeSet code_set, VAddr base_addr) {
     std::lock_guard lock{HLE::g_hle_lock};
     const auto ReprotectSegment = [&](const CodeSet::Segment& segment,
                                       KMemoryPermission permission) {
-        page_table->SetCodeMemoryPermission(segment.addr + base_addr, segment.size, permission);
+        page_table->SetProcessMemoryPermission(segment.addr + base_addr, segment.size, permission);
     };
 
     kernel.System().Memory().WriteBlock(*this, base_addr, code_set.memory.data(),

src/core/hle/kernel/k_process.h

@@ -347,6 +347,7 @@ public:
 
     void PinCurrentThread();
     void UnpinCurrentThread();
+    void UnpinThread(KThread* thread);
 
     KLightLock& GetStateLock() {
         return state_lock;

src/core/hle/kernel/k_scheduler.cpp

@@ -240,8 +240,8 @@ void KScheduler::OnThreadPriorityChanged(KernelCore& kernel, KThread* thread, s3
 
     // If the thread is runnable, we want to change its priority in the queue.
     if (thread->GetRawState() == ThreadState::Runnable) {
-        GetPriorityQueue(kernel).ChangePriority(
-            old_priority, thread == kernel.CurrentScheduler()->GetCurrentThread(), thread);
+        GetPriorityQueue(kernel).ChangePriority(old_priority,
+                                                thread == kernel.GetCurrentEmuThread(), thread);
         IncrementScheduledCount(thread);
         SetSchedulerUpdateNeeded(kernel);
     }
@@ -360,7 +360,7 @@ void KScheduler::RotateScheduledQueue(s32 cpu_core_id, s32 priority) {
 }
 
 bool KScheduler::CanSchedule(KernelCore& kernel) {
-    return kernel.CurrentScheduler()->GetCurrentThread()->GetDisableDispatchCount() <= 1;
+    return kernel.GetCurrentEmuThread()->GetDisableDispatchCount() <= 1;
 }
 
 bool KScheduler::IsSchedulerUpdateNeeded(const KernelCore& kernel) {
@@ -376,20 +376,30 @@ void KScheduler::ClearSchedulerUpdateNeeded(KernelCore& kernel) {
 }
 
 void KScheduler::DisableScheduling(KernelCore& kernel) {
-    if (auto* scheduler = kernel.CurrentScheduler(); scheduler) {
-        ASSERT(scheduler->GetCurrentThread()->GetDisableDispatchCount() >= 0);
-        scheduler->GetCurrentThread()->DisableDispatch();
+    // If we are shutting down the kernel, none of this is relevant anymore.
+    if (kernel.IsShuttingDown()) {
+        return;
     }
+
+    ASSERT(GetCurrentThreadPointer(kernel)->GetDisableDispatchCount() >= 0);
+    GetCurrentThreadPointer(kernel)->DisableDispatch();
 }
 
 void KScheduler::EnableScheduling(KernelCore& kernel, u64 cores_needing_scheduling) {
-    if (auto* scheduler = kernel.CurrentScheduler(); scheduler) {
-        ASSERT(scheduler->GetCurrentThread()->GetDisableDispatchCount() >= 1);
-        if (scheduler->GetCurrentThread()->GetDisableDispatchCount() >= 1) {
-            scheduler->GetCurrentThread()->EnableDispatch();
-        }
+    // If we are shutting down the kernel, none of this is relevant anymore.
+    if (kernel.IsShuttingDown()) {
+        return;
+    }
+
+    auto* current_thread = GetCurrentThreadPointer(kernel);
+
+    ASSERT(current_thread->GetDisableDispatchCount() >= 1);
+
+    if (current_thread->GetDisableDispatchCount() > 1) {
+        current_thread->EnableDispatch();
+    } else {
+        RescheduleCores(kernel, cores_needing_scheduling);
     }
-    RescheduleCores(kernel, cores_needing_scheduling);
 }
 
 u64 KScheduler::UpdateHighestPriorityThreads(KernelCore& kernel) {
@@ -617,13 +627,17 @@ KScheduler::KScheduler(Core::System& system_, s32 core_id_) : system{system_}, c
     state.highest_priority_thread = nullptr;
 }
 
-KScheduler::~KScheduler() {
+void KScheduler::Finalize() {
     if (idle_thread) {
         idle_thread->Close();
         idle_thread = nullptr;
     }
 }
 
+KScheduler::~KScheduler() {
+    ASSERT(!idle_thread);
+}
+
 KThread* KScheduler::GetCurrentThread() const {
     if (auto result = current_thread.load(); result) {
         return result;
@@ -642,10 +656,12 @@ void KScheduler::RescheduleCurrentCore() {
     if (phys_core.IsInterrupted()) {
         phys_core.ClearInterrupt();
     }
+
     guard.Lock();
     if (state.needs_scheduling.load()) {
         Schedule();
     } else {
+        GetCurrentThread()->EnableDispatch();
         guard.Unlock();
     }
 }
@@ -655,26 +671,33 @@ void KScheduler::OnThreadStart() {
 }
 
 void KScheduler::Unload(KThread* thread) {
+    ASSERT(thread);
+
     LOG_TRACE(Kernel, "core {}, unload thread {}", core_id, thread ? thread->GetName() : "nullptr");
 
-    if (thread) {
-        if (thread->IsCallingSvc()) {
-            thread->ClearIsCallingSvc();
-        }
-        if (!thread->IsTerminationRequested()) {
-            prev_thread = thread;
-
-            Core::ARM_Interface& cpu_core = system.ArmInterface(core_id);
-            cpu_core.SaveContext(thread->GetContext32());
-            cpu_core.SaveContext(thread->GetContext64());
-            // Save the TPIDR_EL0 system register in case it was modified.
-            thread->SetTPIDR_EL0(cpu_core.GetTPIDR_EL0());
-            cpu_core.ClearExclusiveState();
-        } else {
-            prev_thread = nullptr;
-        }
-        thread->context_guard.Unlock();
+    if (thread->IsCallingSvc()) {
+        thread->ClearIsCallingSvc();
     }
+
+    auto& physical_core = system.Kernel().PhysicalCore(core_id);
+    if (!physical_core.IsInitialized()) {
+        return;
+    }
+
+    Core::ARM_Interface& cpu_core = physical_core.ArmInterface();
+    cpu_core.SaveContext(thread->GetContext32());
+    cpu_core.SaveContext(thread->GetContext64());
+    // Save the TPIDR_EL0 system register in case it was modified.
+    thread->SetTPIDR_EL0(cpu_core.GetTPIDR_EL0());
+    cpu_core.ClearExclusiveState();
+
+    if (!thread->IsTerminationRequested() && thread->GetActiveCore() == core_id) {
+        prev_thread = thread;
+    } else {
+        prev_thread = nullptr;
+    }
+
+    thread->context_guard.Unlock();
 }
 
 void KScheduler::Reload(KThread* thread) {
@@ -683,11 +706,6 @@ void KScheduler::Reload(KThread* thread) {
     if (thread) {
         ASSERT_MSG(thread->GetState() == ThreadState::Runnable, "Thread must be runnable.");
 
-        auto* const thread_owner_process = thread->GetOwnerProcess();
-        if (thread_owner_process != nullptr) {
-            system.Kernel().MakeCurrentProcess(thread_owner_process);
-        }
-
         Core::ARM_Interface& cpu_core = system.ArmInterface(core_id);
         cpu_core.LoadContext(thread->GetContext32());
         cpu_core.LoadContext(thread->GetContext64());
@@ -705,7 +723,7 @@ void KScheduler::SwitchContextStep2() {
 }
 
 void KScheduler::ScheduleImpl() {
-    KThread* previous_thread = current_thread.load();
+    KThread* previous_thread = GetCurrentThread();
     KThread* next_thread = state.highest_priority_thread;
 
     state.needs_scheduling = false;
@@ -717,10 +735,15 @@ void KScheduler::ScheduleImpl() {
 
     // If we're not actually switching thread, there's nothing to do.
     if (next_thread == current_thread.load()) {
+        previous_thread->EnableDispatch();
         guard.Unlock();
         return;
     }
 
+    if (next_thread->GetCurrentCore() != core_id) {
+        next_thread->SetCurrentCore(core_id);
+    }
+
     current_thread.store(next_thread);
 
     KProcess* const previous_process = system.Kernel().CurrentProcess();
@@ -731,11 +754,7 @@ void KScheduler::ScheduleImpl() {
     Unload(previous_thread);
 
     std::shared_ptr<Common::Fiber>* old_context;
-    if (previous_thread != nullptr) {
-        old_context = &previous_thread->GetHostContext();
-    } else {
-        old_context = &idle_thread->GetHostContext();
-    }
+    old_context = &previous_thread->GetHostContext();
     guard.Unlock();
 
     Common::Fiber::YieldTo(*old_context, *switch_fiber);

src/core/hle/kernel/k_scheduler.h

@@ -33,6 +33,8 @@ public:
     explicit KScheduler(Core::System& system_, s32 core_id_);
     ~KScheduler();
 
+    void Finalize();
+
     /// Reschedules to the next available thread (call after current thread is suspended)
     void RescheduleCurrentCore();
 

src/core/hle/kernel/k_scheduler_lock.h

@@ -23,6 +23,11 @@ public:
     }
 
     void Lock() {
+        // If we are shutting down the kernel, none of this is relevant anymore.
+        if (kernel.IsShuttingDown()) {
+            return;
+        }
+
         if (IsLockedByCurrentThread()) {
             // If we already own the lock, we can just increment the count.
             ASSERT(lock_count > 0);
@@ -43,6 +48,11 @@ public:
     }
 
     void Unlock() {
+        // If we are shutting down the kernel, none of this is relevant anymore.
+        if (kernel.IsShuttingDown()) {
+            return;
+        }
+
         ASSERT(IsLockedByCurrentThread());
         ASSERT(lock_count > 0);
 

src/core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h

@@ -8,6 +8,7 @@
 #pragma once
 
 #include "common/common_types.h"
+#include "core/hle/kernel/global_scheduler_context.h"
 #include "core/hle/kernel/k_thread.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/time_manager.h"

src/core/hle/kernel/k_server_session.cpp

@@ -175,8 +175,7 @@ ResultCode KServerSession::CompleteSyncRequest(HLERequestContext& context) {
     {
         KScopedSchedulerLock lock(kernel);
         if (!context.IsThreadWaiting()) {
-            context.GetThread().Wakeup();
-            context.GetThread().SetSyncedObject(nullptr, result);
+            context.GetThread().EndWait(result);
         }
     }
 

src/core/hle/kernel/k_synchronization_object.cpp

@@ -8,11 +8,66 @@
 #include "core/hle/kernel/k_scoped_scheduler_lock_and_sleep.h"
 #include "core/hle/kernel/k_synchronization_object.h"
 #include "core/hle/kernel/k_thread.h"
+#include "core/hle/kernel/k_thread_queue.h"
 #include "core/hle/kernel/kernel.h"
 #include "core/hle/kernel/svc_results.h"
 
 namespace Kernel {
 
+namespace {
+
+class ThreadQueueImplForKSynchronizationObjectWait final : public KThreadQueueWithoutEndWait {
+public:
+    ThreadQueueImplForKSynchronizationObjectWait(KernelCore& kernel_, KSynchronizationObject** o,
+                                                 KSynchronizationObject::ThreadListNode* n, s32 c)
+        : KThreadQueueWithoutEndWait(kernel_), m_objects(o), m_nodes(n), m_count(c) {}
+
+    void NotifyAvailable(KThread* waiting_thread, KSynchronizationObject* signaled_object,
+                         ResultCode wait_result) override {
+        // Determine the sync index, and unlink all nodes.
+        s32 sync_index = -1;
+        for (auto i = 0; i < m_count; ++i) {
+            // Check if this is the signaled object.
+            if (m_objects[i] == signaled_object && sync_index == -1) {
+                sync_index = i;
+            }
+
+            // Unlink the current node from the current object.
+            m_objects[i]->UnlinkNode(std::addressof(m_nodes[i]));
+        }
+
+        // Set the waiting thread's sync index.
+        waiting_thread->SetSyncedIndex(sync_index);
+
+        // Set the waiting thread as not cancellable.
+        waiting_thread->ClearCancellable();
+
+        // Invoke the base end wait handler.
+        KThreadQueue::EndWait(waiting_thread, wait_result);
+    }
+
+    void CancelWait(KThread* waiting_thread, ResultCode wait_result,
+                    bool cancel_timer_task) override {
+        // Remove all nodes from our list.
+        for (auto i = 0; i < m_count; ++i) {
+            m_objects[i]->UnlinkNode(std::addressof(m_nodes[i]));
+        }
+
+        // Set the waiting thread as not cancellable.
+        waiting_thread->ClearCancellable();
+
+        // Invoke the base cancel wait handler.
+        KThreadQueue::CancelWait(waiting_thread, wait_result, cancel_timer_task);
+    }
+
+private:
+    KSynchronizationObject** m_objects;
+    KSynchronizationObject::ThreadListNode* m_nodes;
+    s32 m_count;
+};
+
+} // namespace
+
 void KSynchronizationObject::Finalize() {
     this->OnFinalizeSynchronizationObject();
     KAutoObject::Finalize();
@@ -25,11 +80,19 @@ ResultCode KSynchronizationObject::Wait(KernelCore& kernel_ctx, s32* out_index,
     std::vector<ThreadListNode> thread_nodes(num_objects);
 
     // Prepare for wait.
-    KThread* thread = kernel_ctx.CurrentScheduler()->GetCurrentThread();
+    KThread* thread = GetCurrentThreadPointer(kernel_ctx);
+    ThreadQueueImplForKSynchronizationObjectWait wait_queue(kernel_ctx, objects,
+                                                            thread_nodes.data(), num_objects);
 
     {
         // Setup the scheduling lock and sleep.
-        KScopedSchedulerLockAndSleep slp{kernel_ctx, thread, timeout};
+        KScopedSchedulerLockAndSleep slp(kernel_ctx, thread, timeout);
+
+        // Check if the thread should terminate.
+        if (thread->IsTerminationRequested()) {
+            slp.CancelSleep();
+            return ResultTerminationRequested;
+        }
 
         // Check if any of the objects are already signaled.
         for (auto i = 0; i < num_objects; ++i) {
@@ -48,12 +111,6 @@ ResultCode KSynchronizationObject::Wait(KernelCore& kernel_ctx, s32* out_index,
             return ResultTimedOut;
         }
 
-        // Check if the thread should terminate.
-        if (thread->IsTerminationRequested()) {
-            slp.CancelSleep();
-            return ResultTerminationRequested;
-        }
-
         // Check if waiting was canceled.
         if (thread->IsWaitCancelled()) {
             slp.CancelSleep();
@@ -66,73 +123,25 @@ ResultCode KSynchronizationObject::Wait(KernelCore& kernel_ctx, s32* out_index,
             thread_nodes[i].thread = thread;
             thread_nodes[i].next = nullptr;
 
-            if (objects[i]->thread_list_tail == nullptr) {
-                objects[i]->thread_list_head = std::addressof(thread_nodes[i]);
-            } else {
-                objects[i]->thread_list_tail->next = std::addressof(thread_nodes[i]);
-            }
-
-            objects[i]->thread_list_tail = std::addressof(thread_nodes[i]);
+            objects[i]->LinkNode(std::addressof(thread_nodes[i]));
         }
 
-        // For debugging only
-        thread->SetWaitObjectsForDebugging({objects, static_cast<std::size_t>(num_objects)});
-
-        // Mark the thread as waiting.
+        // Mark the thread as cancellable.
         thread->SetCancellable();
-        thread->SetSyncedObject(nullptr, ResultTimedOut);
-        thread->SetState(ThreadState::Waiting);
+
+        // Clear the thread's synced index.
+        thread->SetSyncedIndex(-1);
+
+        // Wait for an object to be signaled.
+        thread->BeginWait(std::addressof(wait_queue));
         thread->SetWaitReasonForDebugging(ThreadWaitReasonForDebugging::Synchronization);
     }
 
-    // The lock/sleep is done, so we should be able to get our result.
-
-    // Thread is no longer cancellable.
-    thread->ClearCancellable();
-
-    // For debugging only
-    thread->SetWaitObjectsForDebugging({});
-
-    // Cancel the timer as needed.
-    kernel_ctx.TimeManager().UnscheduleTimeEvent(thread);
+    // Set the output index.
+    *out_index = thread->GetSyncedIndex();
 
     // Get the wait result.
-    ResultCode wait_result{ResultSuccess};
-    s32 sync_index = -1;
-    {
-        KScopedSchedulerLock lock(kernel_ctx);
-        KSynchronizationObject* synced_obj;
-        wait_result = thread->GetWaitResult(std::addressof(synced_obj));
-
-        for (auto i = 0; i < num_objects; ++i) {
-            // Unlink the object from the list.
-            ThreadListNode* prev_ptr =
-                reinterpret_cast<ThreadListNode*>(std::addressof(objects[i]->thread_list_head));
-            ThreadListNode* prev_val = nullptr;
-            ThreadListNode *prev, *tail_prev;
-
-            do {
-                prev = prev_ptr;
-                prev_ptr = prev_ptr->next;
-                tail_prev = prev_val;
-                prev_val = prev_ptr;
-            } while (prev_ptr != std::addressof(thread_nodes[i]));
-
-            if (objects[i]->thread_list_tail == std::addressof(thread_nodes[i])) {
-                objects[i]->thread_list_tail = tail_prev;
-            }
-
-            prev->next = thread_nodes[i].next;
-
-            if (objects[i] == synced_obj) {
-                sync_index = i;
-            }
-        }
-    }
-
-    // Set output.
-    *out_index = sync_index;
-    return wait_result;
+    return thread->GetWaitResult();
 }
 
 KSynchronizationObject::KSynchronizationObject(KernelCore& kernel_)
@@ -141,7 +150,7 @@ KSynchronizationObject::KSynchronizationObject(KernelCore& kernel_)
 KSynchronizationObject::~KSynchronizationObject() = default;
 
 void KSynchronizationObject::NotifyAvailable(ResultCode result) {
-    KScopedSchedulerLock lock(kernel);
+    KScopedSchedulerLock sl(kernel);
 
     // If we're not signaled, we've nothing to notify.
     if (!this->IsSignaled()) {
@@ -150,11 +159,7 @@ void KSynchronizationObject::NotifyAvailable(ResultCode result) {
 
     // Iterate over each thread.
     for (auto* cur_node = thread_list_head; cur_node != nullptr; cur_node = cur_node->next) {
-        KThread* thread = cur_node->thread;
-        if (thread->GetState() == ThreadState::Waiting) {
-            thread->SetSyncedObject(this, result);
-            thread->SetState(ThreadState::Runnable);
-        }
+        cur_node->thread->NotifyAvailable(this, result);
     }
 }
 

src/core/hle/kernel/k_synchronization_object.h

@@ -35,6 +35,38 @@ public:
 
     [[nodiscard]] std::vector<KThread*> GetWaitingThreadsForDebugging() const;
 
+    void LinkNode(ThreadListNode* node_) {
+        // Link the node to the list.
+        if (thread_list_tail == nullptr) {
+            thread_list_head = node_;
+        } else {
+            thread_list_tail->next = node_;
+        }
+
+        thread_list_tail = node_;
+    }
+
+    void UnlinkNode(ThreadListNode* node_) {
+        // Unlink the node from the list.
+        ThreadListNode* prev_ptr =
+            reinterpret_cast<ThreadListNode*>(std::addressof(thread_list_head));
+        ThreadListNode* prev_val = nullptr;
+        ThreadListNode *prev, *tail_prev;
+
+        do {
+            prev = prev_ptr;
+            prev_ptr = prev_ptr->next;
+            tail_prev = prev_val;
+            prev_val = prev_ptr;
+        } while (prev_ptr != node_);
+
+        if (thread_list_tail == node_) {
+            thread_list_tail = tail_prev;
+        }
+
+        prev->next = node_->next;
+    }
+
 protected:
     explicit KSynchronizationObject(KernelCore& kernel);
     ~KSynchronizationObject() override;