12 files changed, 154 insertions, 18 deletions

diff --git a/src/input_common/CMakeLists.txt b/src/input_common/CMakeLists.txt
index d2fbea488..d0a71a15b 100644
--- a/src/input_common/CMakeLists.txt
+++ b/src/input_common/CMakeLists.txt
@@ -2,6 +2,8 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 
 add_library(input_common STATIC
+    drivers/android.cpp
+    drivers/android.h
     drivers/camera.cpp
     drivers/camera.h
     drivers/keyboard.cpp
diff --git a/src/input_common/drivers/android.cpp b/src/input_common/drivers/android.cpp
new file mode 100644
index 000000000..b6a03fdc0
--- /dev/null
+++ b/src/input_common/drivers/android.cpp
@@ -0,0 +1,48 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "input_common/drivers/android.h"
+
+namespace InputCommon {
+
+Android::Android(std::string input_engine_) : InputEngine(std::move(input_engine_)) {}
+
+void Android::RegisterController(std::size_t controller_number) {
+    PreSetController(GetIdentifier(controller_number));
+}
+
+void Android::SetButtonState(std::size_t controller_number, int button_id, bool value) {
+    const auto identifier = GetIdentifier(controller_number);
+    SetButton(identifier, button_id, value);
+}
+
+void Android::SetAxisState(std::size_t controller_number, int axis_id, float value) {
+    const auto identifier = GetIdentifier(controller_number);
+    SetAxis(identifier, axis_id, value);
+}
+
+void Android::SetMotionState(std::size_t controller_number, u64 delta_timestamp, float gyro_x,
+                             float gyro_y, float gyro_z, float accel_x, float accel_y,
+                             float accel_z) {
+    const auto identifier = GetIdentifier(controller_number);
+    const BasicMotion motion_data{
+        .gyro_x = gyro_x,
+        .gyro_y = gyro_y,
+        .gyro_z = gyro_z,
+        .accel_x = accel_x,
+        .accel_y = accel_y,
+        .accel_z = accel_z,
+        .delta_timestamp = delta_timestamp,
+    };
+    SetMotion(identifier, 0, motion_data);
+}
+
+PadIdentifier Android::GetIdentifier(std::size_t controller_number) const {
+    return {
+        .guid = Common::UUID{},
+        .port = controller_number,
+        .pad = 0,
+    };
+}
+
+} // namespace InputCommon
diff --git a/src/input_common/drivers/android.h b/src/input_common/drivers/android.h
new file mode 100644
index 000000000..3f01817f6
--- /dev/null
+++ b/src/input_common/drivers/android.h
@@ -0,0 +1,54 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include "input_common/input_engine.h"
+
+namespace InputCommon {
+
+/**
+ * A virtual controller that is always assigned to the game input
+ */
+class Android final : public InputEngine {
+public:
+    explicit Android(std::string input_engine_);
+
+    /**
+     * Registers controller number to accept new inputs
+     * @param controller_number the controller number that will take this action
+     */
+    void RegisterController(std::size_t controller_number);
+
+    /**
+     * Sets the status of all buttons bound with the key to pressed
+     * @param controller_number the controller number that will take this action
+     * @param button_id the id of the button
+     * @param value indicates if the button is pressed or not
+     */
+    void SetButtonState(std::size_t controller_number, int button_id, bool value);
+
+    /**
+     * Sets the status of a analog input to a specific player index
+     * @param controller_number the controller number that will take this action
+     * @param axis_id the id of the axis to move
+     * @param value the analog position of the axis
+     */
+    void SetAxisState(std::size_t controller_number, int axis_id, float value);
+
+    /**
+     * Sets the status of the motion sensor to a specific player index
+     * @param controller_number the controller number that will take this action
+     * @param delta_timestamp time passed since last reading
+     * @param gyro_x,gyro_y,gyro_z the gyro sensor readings
+     * @param accel_x,accel_y,accel_z the accelerometer reading
+     */
+    void SetMotionState(std::size_t controller_number, u64 delta_timestamp, float gyro_x,
+                        float gyro_y, float gyro_z, float accel_x, float accel_y, float accel_z);
+
+private:
+    /// Returns the correct identifier corresponding to the player index
+    PadIdentifier GetIdentifier(std::size_t controller_number) const;
+};
+
+} // namespace InputCommon
diff --git a/src/input_common/drivers/gc_adapter.cpp b/src/input_common/drivers/gc_adapter.cpp
index 1ff296af5..f1184a5fa 100644
--- a/src/input_common/drivers/gc_adapter.cpp
+++ b/src/input_common/drivers/gc_adapter.cpp
@@ -451,11 +451,11 @@ ButtonMapping GCAdapter::GetButtonMappingForDevice(const Common::ParamPackage& p
             std::tuple{Settings::NativeButton::ZL, PadButton::TriggerL, PadAxes::TriggerLeft},
             {Settings::NativeButton::ZR, PadButton::TriggerR, PadAxes::TriggerRight},
         };
-    for (const auto& [switch_button, gcadapter_buton, gcadapter_axis] : switch_to_gcadapter_axis) {
+    for (const auto& [switch_button, gcadapter_button, gcadapter_axis] : switch_to_gcadapter_axis) {
         Common::ParamPackage button_params{};
         button_params.Set("engine", GetEngineName());
         button_params.Set("port", params.Get("port", 0));
-        button_params.Set("button", static_cast<s32>(gcadapter_buton));
+        button_params.Set("button", static_cast<s32>(gcadapter_button));
         button_params.Set("axis", static_cast<s32>(gcadapter_axis));
         button_params.Set("threshold", 0.5f);
         button_params.Set("range", 1.9f);
diff --git a/src/input_common/helpers/joycon_protocol/irs.cpp b/src/input_common/helpers/joycon_protocol/irs.cpp
index 68b0589e3..5bf72114d 100644
--- a/src/input_common/helpers/joycon_protocol/irs.cpp
+++ b/src/input_common/helpers/joycon_protocol/irs.cpp
@@ -236,9 +236,9 @@ Common::Input::DriverResult IrsProtocol::WriteRegistersStep2() {
         .number_of_registers = 0x8,
         .registers =
             {
-                IrsRegister{IrRegistersAddress::LedIntensitiyMSB,
+                IrsRegister{IrRegistersAddress::LedIntensityMSB,
                             static_cast<u8>(led_intensity >> 8)},
-                {IrRegistersAddress::LedIntensitiyLSB, static_cast<u8>(led_intensity & 0xff)},
+                {IrRegistersAddress::LedIntensityLSB, static_cast<u8>(led_intensity & 0xff)},
                 {IrRegistersAddress::ImageFlip, static_cast<u8>(image_flip)},
                 {IrRegistersAddress::DenoiseSmoothing, static_cast<u8>((denoise >> 16) & 0xff)},
                 {IrRegistersAddress::DenoiseEdge, static_cast<u8>((denoise >> 8) & 0xff)},
diff --git a/src/input_common/helpers/joycon_protocol/joycon_types.h b/src/input_common/helpers/joycon_protocol/joycon_types.h
index 77a43c67a..792f124e1 100644
--- a/src/input_common/helpers/joycon_protocol/joycon_types.h
+++ b/src/input_common/helpers/joycon_protocol/joycon_types.h
@@ -282,7 +282,7 @@ enum class NFCCommand : u8 {
     CancelAll = 0x00,
     StartPolling = 0x01,
     StopPolling = 0x02,
-    StartWaitingRecieve = 0x04,
+    StartWaitingReceive = 0x04,
     ReadNtag = 0x06,
     WriteNtag = 0x08,
     Mifare = 0x0F,
@@ -382,8 +382,8 @@ enum class IrRegistersAddress : u16 {
     FinalizeConfig = 0x0700,
     LedFilter = 0x0e00,
     Leds = 0x1000,
-    LedIntensitiyMSB = 0x1100,
-    LedIntensitiyLSB = 0x1200,
+    LedIntensityMSB = 0x1100,
+    LedIntensityLSB = 0x1200,
     ImageFlip = 0x2d00,
     Resolution = 0x2e00,
     DigitalGainLSB = 0x2e01,
diff --git a/src/input_common/helpers/joycon_protocol/nfc.cpp b/src/input_common/helpers/joycon_protocol/nfc.cpp
index 09953394b..db83f9ef4 100644
--- a/src/input_common/helpers/joycon_protocol/nfc.cpp
+++ b/src/input_common/helpers/joycon_protocol/nfc.cpp
@@ -519,13 +519,13 @@ Common::Input::DriverResult NfcProtocol::GetMifareData(
         }
 
         if (output.mcu_report == MCUReport::NFCState && output.mcu_data[1] == 0x10) {
-            constexpr std::size_t DATA_LENGHT = 0x10 + 1;
+            constexpr std::size_t DATA_LENGTH = 0x10 + 1;
             constexpr std::size_t DATA_START = 11;
             const u8 number_of_elements = output.mcu_data[10];
             for (std::size_t i = 0; i < number_of_elements; i++) {
-                out_data[i].sector = output.mcu_data[DATA_START + (i * DATA_LENGHT)];
+                out_data[i].sector = output.mcu_data[DATA_START + (i * DATA_LENGTH)];
                 memcpy(out_data[i].data.data(),
-                       output.mcu_data.data() + DATA_START + 1 + (i * DATA_LENGHT),
+                       output.mcu_data.data() + DATA_START + 1 + (i * DATA_LENGTH),
                        sizeof(MifareReadData::data));
             }
             package_index++;
@@ -659,7 +659,7 @@ Common::Input::DriverResult NfcProtocol::SendStopPollingRequest(MCUCommandRespon
 Common::Input::DriverResult NfcProtocol::SendNextPackageRequest(MCUCommandResponse& output,
                                                                 u8 packet_id) {
     NFCRequestState request{
-        .command_argument = NFCCommand::StartWaitingRecieve,
+        .command_argument = NFCCommand::StartWaitingReceive,
         .block_id = {},
         .packet_id = packet_id,
         .packet_flag = MCUPacketFlag::LastCommandPacket,
diff --git a/src/input_common/helpers/joycon_protocol/rumble.cpp b/src/input_common/helpers/joycon_protocol/rumble.cpp
index 7647f505e..9fd0b8470 100644
--- a/src/input_common/helpers/joycon_protocol/rumble.cpp
+++ b/src/input_common/helpers/joycon_protocol/rumble.cpp
@@ -67,7 +67,7 @@ u8 RumbleProtocol::EncodeHighAmplitude(f32 amplitude) const {
     // More information about these values can be found here:
     // https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering/blob/master/rumble_data_table.md
 
-    static constexpr std::array<std::pair<f32, int>, 101> high_fequency_amplitude{
+    static constexpr std::array<std::pair<f32, int>, 101> high_frequency_amplitude{
         std::pair<f32, int>{0.0f, 0x0},
         {0.01f, 0x2},
         {0.012f, 0x4},
@@ -171,20 +171,20 @@ u8 RumbleProtocol::EncodeHighAmplitude(f32 amplitude) const {
         {1.003f, 0xc8},
     };
 
-    for (const auto& [amplitude_value, code] : high_fequency_amplitude) {
+    for (const auto& [amplitude_value, code] : high_frequency_amplitude) {
         if (amplitude <= amplitude_value) {
             return static_cast<u8>(code);
         }
     }
 
-    return static_cast<u8>(high_fequency_amplitude[high_fequency_amplitude.size() - 1].second);
+    return static_cast<u8>(high_frequency_amplitude[high_frequency_amplitude.size() - 1].second);
 }
 
 u16 RumbleProtocol::EncodeLowAmplitude(f32 amplitude) const {
     // More information about these values can be found here:
     // https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering/blob/master/rumble_data_table.md
 
-    static constexpr std::array<std::pair<f32, int>, 101> high_fequency_amplitude{
+    static constexpr std::array<std::pair<f32, int>, 101> high_frequency_amplitude{
         std::pair<f32, int>{0.0f, 0x0040},
         {0.01f, 0x8040},
         {0.012f, 0x0041},
@@ -288,13 +288,13 @@ u16 RumbleProtocol::EncodeLowAmplitude(f32 amplitude) const {
         {1.003f, 0x0072},
     };
 
-    for (const auto& [amplitude_value, code] : high_fequency_amplitude) {
+    for (const auto& [amplitude_value, code] : high_frequency_amplitude) {
         if (amplitude <= amplitude_value) {
             return static_cast<u16>(code);
         }
     }
 
-    return static_cast<u16>(high_fequency_amplitude[high_fequency_amplitude.size() - 1].second);
+    return static_cast<u16>(high_frequency_amplitude[high_frequency_amplitude.size() - 1].second);
 }
 
 } // namespace InputCommon::Joycon
diff --git a/src/input_common/helpers/udp_protocol.h b/src/input_common/helpers/udp_protocol.h
index d9643ffe0..dba9f87d9 100644
--- a/src/input_common/helpers/udp_protocol.h
+++ b/src/input_common/helpers/udp_protocol.h
@@ -78,7 +78,7 @@ namespace Request {
 enum RegisterFlags : u8 {
     AllPads,
     PadID,
-    PadMACAdddress,
+    PadMACAddress,
 };
 
 struct Version {};
diff --git a/src/input_common/input_mapping.cpp b/src/input_common/input_mapping.cpp
index 8c2ee4eb3..f1a1d7398 100644
--- a/src/input_common/input_mapping.cpp
+++ b/src/input_common/input_mapping.cpp
@@ -210,6 +210,9 @@ bool MappingFactory::IsDriverValid(const MappingData& data) const {
     if (data.engine == "analog_from_button") {
         return false;
     }
+    if (data.engine == "virtual_gamepad") {
+        return false;
+    }
     return true;
 }
 
diff --git a/src/input_common/main.cpp b/src/input_common/main.cpp
index c77fc04ee..f8749ebbf 100644
--- a/src/input_common/main.cpp
+++ b/src/input_common/main.cpp
@@ -4,6 +4,7 @@
 #include <memory>
 #include "common/input.h"
 #include "common/param_package.h"
+#include "input_common/drivers/android.h"
 #include "input_common/drivers/camera.h"
 #include "input_common/drivers/keyboard.h"
 #include "input_common/drivers/mouse.h"
@@ -78,6 +79,7 @@ struct InputSubsystem::Impl {
         RegisterEngine("cemuhookudp", udp_client);
         RegisterEngine("tas", tas_input);
         RegisterEngine("camera", camera);
+        RegisterEngine("android", android);
         RegisterEngine("virtual_amiibo", virtual_amiibo);
         RegisterEngine("virtual_gamepad", virtual_gamepad);
 #ifdef HAVE_SDL2
@@ -109,6 +111,7 @@ struct InputSubsystem::Impl {
         UnregisterEngine(udp_client);
         UnregisterEngine(tas_input);
         UnregisterEngine(camera);
+        UnregisterEngine(android);
         UnregisterEngine(virtual_amiibo);
         UnregisterEngine(virtual_gamepad);
 #ifdef HAVE_SDL2
@@ -129,6 +132,8 @@ struct InputSubsystem::Impl {
         devices.insert(devices.end(), keyboard_devices.begin(), keyboard_devices.end());
         auto mouse_devices = mouse->GetInputDevices();
         devices.insert(devices.end(), mouse_devices.begin(), mouse_devices.end());
+        auto android_devices = android->GetInputDevices();
+        devices.insert(devices.end(), android_devices.begin(), android_devices.end());
 #ifdef HAVE_LIBUSB
         auto gcadapter_devices = gcadapter->GetInputDevices();
         devices.insert(devices.end(), gcadapter_devices.begin(), gcadapter_devices.end());
@@ -157,6 +162,9 @@ struct InputSubsystem::Impl {
         if (engine == mouse->GetEngineName()) {
             return mouse;
         }
+        if (engine == android->GetEngineName()) {
+            return android;
+        }
 #ifdef HAVE_LIBUSB
         if (engine == gcadapter->GetEngineName()) {
             return gcadapter;
@@ -237,6 +245,9 @@ struct InputSubsystem::Impl {
         if (engine == mouse->GetEngineName()) {
             return true;
         }
+        if (engine == android->GetEngineName()) {
+            return true;
+        }
 #ifdef HAVE_LIBUSB
         if (engine == gcadapter->GetEngineName()) {
             return true;
@@ -265,6 +276,7 @@ struct InputSubsystem::Impl {
     void BeginConfiguration() {
         keyboard->BeginConfiguration();
         mouse->BeginConfiguration();
+        android->BeginConfiguration();
 #ifdef HAVE_LIBUSB
         gcadapter->BeginConfiguration();
 #endif
@@ -278,6 +290,7 @@ struct InputSubsystem::Impl {
     void EndConfiguration() {
         keyboard->EndConfiguration();
         mouse->EndConfiguration();
+        android->EndConfiguration();
 #ifdef HAVE_LIBUSB
         gcadapter->EndConfiguration();
 #endif
@@ -308,6 +321,7 @@ struct InputSubsystem::Impl {
     std::shared_ptr<TasInput::Tas> tas_input;
     std::shared_ptr<CemuhookUDP::UDPClient> udp_client;
     std::shared_ptr<Camera> camera;
+    std::shared_ptr<Android> android;
     std::shared_ptr<VirtualAmiibo> virtual_amiibo;
     std::shared_ptr<VirtualGamepad> virtual_gamepad;
 
@@ -373,6 +387,14 @@ const Camera* InputSubsystem::GetCamera() const {
     return impl->camera.get();
 }
 
+Android* InputSubsystem::GetAndroid() {
+    return impl->android.get();
+}
+
+const Android* InputSubsystem::GetAndroid() const {
+    return impl->android.get();
+}
+
 VirtualAmiibo* InputSubsystem::GetVirtualAmiibo() {
     return impl->virtual_amiibo.get();
 }
diff --git a/src/input_common/main.h b/src/input_common/main.h
index d64a6cb4c..1d19019ee 100644
--- a/src/input_common/main.h
+++ b/src/input_common/main.h
@@ -29,6 +29,7 @@ enum Values : int;
 }
 
 namespace InputCommon {
+class Android;
 class Camera;
 class Keyboard;
 class Mouse;
@@ -103,6 +104,12 @@ public:
     /// Retrieves the underlying camera input device.
     [[nodiscard]] const Camera* GetCamera() const;
 
+    /// Retrieves the underlying android input device.
+    [[nodiscard]] Android* GetAndroid();
+
+    /// Retrieves the underlying android input device.
+    [[nodiscard]] const Android* GetAndroid() const;
+
     /// Retrieves the underlying virtual amiibo input device.
     [[nodiscard]] VirtualAmiibo* GetVirtualAmiibo();