Add multiple udp server support

src/core/settings.h

@@ -174,9 +174,7 @@ struct Values {
 
     Setting<bool> motion_enabled;
     std::string motion_device;
-    std::string udp_input_address;
-    u16 udp_input_port;
-    u8 udp_pad_index;
+    std::string udp_input_servers;
 
     bool mouse_enabled;
     std::string mouse_device;

src/input_common/main.cpp

@@ -233,7 +233,7 @@ void InputSubsystem::ReloadInputDevices() {
     if (!impl->udp) {
         return;
     }
-    impl->udp->ReloadUDPClient();
+    impl->udp->ReloadSockets();
 }
 
 std::vector<std::unique_ptr<Polling::DevicePoller>> InputSubsystem::GetPollers(

src/input_common/udp/client.cpp

@@ -136,15 +136,7 @@ static void SocketLoop(Socket* socket) {
 
 Client::Client() {
     LOG_INFO(Input, "Udp Initialization started");
-    for (std::size_t client = 0; client < clients.size(); client++) {
-        const auto pad = client % 4;
-        StartCommunication(client, Settings::values.udp_input_address,
-                           Settings::values.udp_input_port, pad, 24872);
-        // Set motion parameters
-        // SetGyroThreshold value should be dependent on GyroscopeZeroDriftMode
-        // Real HW values are unknown, 0.0001 is an approximate to Standard
-        clients[client].motion.SetGyroThreshold(0.0001f);
-    }
+    ReloadSockets();
 }
 
 Client::~Client() {
@@ -167,26 +159,61 @@ std::vector<Common::ParamPackage> Client::GetInputDevices() const {
     return devices;
 }
 
-bool Client::DeviceConnected(std::size_t pad) const {
+bool Client::DeviceConnected(std::size_t client) const {
     // Use last timestamp to detect if the socket has stopped sending data
-    const auto now = std::chrono::system_clock::now();
-    const auto time_difference = static_cast<u64>(
-        std::chrono::duration_cast<std::chrono::milliseconds>(now - clients[pad].last_motion_update)
-            .count());
-    return time_difference < 1000 && clients[pad].active == 1;
+    const auto now = std::chrono::steady_clock::now();
+    const auto time_difference =
+        static_cast<u64>(std::chrono::duration_cast<std::chrono::milliseconds>(
+                             now - clients[client].last_motion_update)
+                             .count());
+    return time_difference < 1000 && clients[client].active == 1;
 }
 
-void Client::ReloadUDPClient() {
-    for (std::size_t client = 0; client < clients.size(); client++) {
-        ReloadSocket(Settings::values.udp_input_address, Settings::values.udp_input_port, client);
+void Client::ReloadSockets() {
+    Reset();
+
+    std::stringstream servers_ss(Settings::values.udp_input_servers);
+    std::string server_token;
+    std::size_t client = 0;
+    while (std::getline(servers_ss, server_token, ',')) {
+        if (client == max_udp_clients) {
+            break;
+        }
+        std::stringstream server_ss(server_token);
+        std::string token;
+        std::getline(server_ss, token, ':');
+        std::string udp_input_address = token;
+        std::getline(server_ss, token, ':');
+        char* temp;
+        const u16 udp_input_port = static_cast<u16>(std::strtol(token.c_str(), &temp, 0));
+        if (*temp != '\0') {
+            LOG_ERROR(Input, "Port number is not valid {}", token);
+            continue;
+        }
+
+        for (std::size_t pad = 0; pad < 4; ++pad) {
+            const std::size_t client_number =
+                GetClientNumber(udp_input_address, udp_input_port, pad);
+            if (client_number != max_udp_clients) {
+                LOG_ERROR(Input, "Duplicated UDP servers found");
+                continue;
+            }
+            StartCommunication(client++, udp_input_address, udp_input_port, pad, 24872);
+        }
     }
 }
-void Client::ReloadSocket(const std::string& host, u16 port, std::size_t pad_index, u32 client_id) {
-    // client number must be determined from host / port and pad index
-    const std::size_t client = pad_index;
-    clients[client].socket->Stop();
-    clients[client].thread.join();
-    StartCommunication(client, host, port, pad_index, client_id);
+
+std::size_t Client::GetClientNumber(std::string_view host, u16 port, std::size_t pad) const {
+    for (std::size_t client = 0; client < clients.size(); client++) {
+        if (clients[client].active == -1) {
+            continue;
+        }
+        if (clients[client].host == host && clients[client].port == port &&
+            clients[client].pad_index == pad) {
+            return client;
+        }
+    }
+    return max_udp_clients;
 }
 
 void Client::OnVersion([[maybe_unused]] Response::Version data) {
@@ -197,9 +224,7 @@ void Client::OnPortInfo([[maybe_unused]] Response::PortInfo data) {
     LOG_TRACE(Input, "PortInfo packet received: {}", data.model);
 }
 
-void Client::OnPadData(Response::PadData data) {
-    // Client number must be determined from host / port and pad index
-    const std::size_t client = data.info.id;
+void Client::OnPadData(Response::PadData data, std::size_t client) {
     LOG_TRACE(Input, "PadData packet received");
     if (data.packet_counter == clients[client].packet_sequence) {
         LOG_WARNING(
@@ -208,9 +233,9 @@ void Client::OnPadData(Response::PadData data) {
             clients[client].packet_sequence, data.packet_counter);
         return;
     }
-    clients[client].active = data.info.is_pad_active;
+    clients[client].active = static_cast<s8>(data.info.is_pad_active);
     clients[client].packet_sequence = data.packet_counter;
-    const auto now = std::chrono::system_clock::now();
+    const auto now = std::chrono::steady_clock::now();
     const auto time_difference =
         static_cast<u64>(std::chrono::duration_cast<std::chrono::microseconds>(
                              now - clients[client].last_motion_update)
@@ -264,16 +289,28 @@ void Client::StartCommunication(std::size_t client, const std::string& host, u16
                                 std::size_t pad_index, u32 client_id) {
     SocketCallback callback{[this](Response::Version version) { OnVersion(version); },
                             [this](Response::PortInfo info) { OnPortInfo(info); },
-                            [this](Response::PadData data) { OnPadData(data); }};
-    LOG_INFO(Input, "Starting communication with UDP input server on {}:{}", host, port);
+                            [this, client](Response::PadData data) { OnPadData(data, client); }};
+    LOG_INFO(Input, "Starting communication with UDP input server on {}:{}:{}", host, port,
+             pad_index);
+    clients[client].host = host;
+    clients[client].port = port;
+    clients[client].pad_index = pad_index;
+    clients[client].active = 0;
     clients[client].socket = std::make_unique<Socket>(host, port, pad_index, client_id, callback);
     clients[client].thread = std::thread{SocketLoop, clients[client].socket.get()};
+    // Set motion parameters
+    // SetGyroThreshold value should be dependent on GyroscopeZeroDriftMode
+    // Real HW values are unknown, 0.0001 is an approximate to Standard
+    clients[client].motion.SetGyroThreshold(0.0001f);
 }
 
 void Client::Reset() {
     for (auto& client : clients) {
-        client.socket->Stop();
-        client.thread.join();
+        if (client.thread.joinable()) {
+            client.active = -1;
+            client.socket->Stop();
+            client.thread.join();
+        }
     }
 }
 
@@ -283,52 +320,60 @@ void Client::UpdateYuzuSettings(std::size_t client, const Common::Vec3<float>& a
         LOG_DEBUG(Input, "UDP Controller {}: gyro=({}, {}, {}), accel=({}, {}, {}), touch={}",
                   client, gyro[0], gyro[1], gyro[2], acc[0], acc[1], acc[2], touch);
     }
-    UDPPadStatus pad;
+    UDPPadStatus pad{
+        .host = clients[client].host,
+        .port = clients[client].port,
+        .pad_index = clients[client].pad_index,
+    };
     if (touch) {
         pad.touch = PadTouch::Click;
-        pad_queue[client].Push(pad);
+        pad_queue.Push(pad);
     }
     for (size_t i = 0; i < 3; ++i) {
         if (gyro[i] > 5.0f || gyro[i] < -5.0f) {
             pad.motion = static_cast<PadMotion>(i);
             pad.motion_value = gyro[i];
-            pad_queue[client].Push(pad);
+            pad_queue.Push(pad);
         }
         if (acc[i] > 1.75f || acc[i] < -1.75f) {
             pad.motion = static_cast<PadMotion>(i + 3);
             pad.motion_value = acc[i];
-            pad_queue[client].Push(pad);
+            pad_queue.Push(pad);
         }
     }
 }
 
 void Client::BeginConfiguration() {
-    for (auto& pq : pad_queue) {
-        pq.Clear();
-    }
+    pad_queue.Clear();
     configuring = true;
 }
 
 void Client::EndConfiguration() {
-    for (auto& pq : pad_queue) {
-        pq.Clear();
-    }
+    pad_queue.Clear();
     configuring = false;
 }
 
-DeviceStatus& Client::GetPadState(std::size_t pad) {
-    return clients[pad].status;
+DeviceStatus& Client::GetPadState(const std::string& host, u16 port, std::size_t pad) {
+    const std::size_t client_number = GetClientNumber(host, port, pad);
+    if (client_number == max_udp_clients) {
+        return clients[0].status;
+    }
+    return clients[client_number].status;
 }
 
-const DeviceStatus& Client::GetPadState(std::size_t pad) const {
-    return clients[pad].status;
+const DeviceStatus& Client::GetPadState(const std::string& host, u16 port, std::size_t pad) const {
+    const std::size_t client_number = GetClientNumber(host, port, pad);
+    if (client_number == max_udp_clients) {
+        return clients[0].status;
+    }
+    return clients[client_number].status;
 }
 
-std::array<Common::SPSCQueue<UDPPadStatus>, 4>& Client::GetPadQueue() {
+Common::SPSCQueue<UDPPadStatus>& Client::GetPadQueue() {
     return pad_queue;
 }
 
-const std::array<Common::SPSCQueue<UDPPadStatus>, 4>& Client::GetPadQueue() const {
+const Common::SPSCQueue<UDPPadStatus>& Client::GetPadQueue() const {
     return pad_queue;
 }
 

src/input_common/udp/client.h

@@ -21,8 +21,7 @@
 
 namespace InputCommon::CemuhookUDP {
 
-constexpr u16 DEFAULT_PORT = 26760;
-constexpr char DEFAULT_ADDR[] = "127.0.0.1";
+constexpr char DEFAULT_SRV[] = "127.0.0.1:26760";
 
 class Socket;
 
@@ -48,6 +47,9 @@ enum class PadTouch {
 };
 
 struct UDPPadStatus {
+    std::string host{"127.0.0.1"};
+    u16 port{26760};
+    std::size_t pad_index{};
     PadTouch touch{PadTouch::Undefined};
     PadMotion motion{PadMotion::Undefined};
     f32 motion_value{0.0f};
@@ -82,37 +84,41 @@ public:
 
     std::vector<Common::ParamPackage> GetInputDevices() const;
 
-    bool DeviceConnected(std::size_t pad) const;
-    void ReloadUDPClient();
-    void ReloadSocket(const std::string& host = "127.0.0.1", u16 port = 26760,
-                      std::size_t pad_index = 0, u32 client_id = 24872);
+    bool DeviceConnected(std::size_t client) const;
+    void ReloadSockets();
 
-    std::array<Common::SPSCQueue<UDPPadStatus>, 4>& GetPadQueue();
-    const std::array<Common::SPSCQueue<UDPPadStatus>, 4>& GetPadQueue() const;
+    Common::SPSCQueue<UDPPadStatus>& GetPadQueue();
+    const Common::SPSCQueue<UDPPadStatus>& GetPadQueue() const;
 
-    DeviceStatus& GetPadState(std::size_t pad);
-    const DeviceStatus& GetPadState(std::size_t pad) const;
+    DeviceStatus& GetPadState(const std::string& host, u16 port, std::size_t pad);
+    const DeviceStatus& GetPadState(const std::string& host, u16 port, std::size_t pad) const;
 
 private:
     struct ClientData {
+        std::string host{"127.0.0.1"};
+        u16 port{26760};
+        std::size_t pad_index{};
         std::unique_ptr<Socket> socket;
         DeviceStatus status;
         std::thread thread;
-        u64 packet_sequence = 0;
-        u8 active = 0;
+        u64 packet_sequence{};
+        s8 active{-1};
 
         // Realtime values
         // motion is initalized with PID values for drift correction on joycons
         InputCommon::MotionInput motion{0.3f, 0.005f, 0.0f};
-        std::chrono::time_point<std::chrono::system_clock> last_motion_update;
+        std::chrono::time_point<std::chrono::steady_clock> last_motion_update;
     };
 
     // For shutting down, clear all data, join all threads, release usb
     void Reset();
 
+    // Translates configuration to client number
+    std::size_t GetClientNumber(std::string_view host, u16 port, std::size_t pad) const;
+
     void OnVersion(Response::Version);
     void OnPortInfo(Response::PortInfo);
-    void OnPadData(Response::PadData);
+    void OnPadData(Response::PadData, std::size_t client);
     void StartCommunication(std::size_t client, const std::string& host, u16 port,
                             std::size_t pad_index, u32 client_id);
     void UpdateYuzuSettings(std::size_t client, const Common::Vec3<float>& acc,
@@ -120,8 +126,10 @@ private:
 
     bool configuring = false;
 
-    std::array<ClientData, 4> clients;
-    std::array<Common::SPSCQueue<UDPPadStatus>, 4> pad_queue;
+    // Allocate clients for 8 udp servers
+    const std::size_t max_udp_clients = 32;
+    std::array<ClientData, 4 * 8> clients;
+    Common::SPSCQueue<UDPPadStatus> pad_queue;
 };
 
 /// An async job allowing configuration of the touchpad calibration.

src/input_common/udp/udp.cpp

@@ -13,17 +13,17 @@ namespace InputCommon {
 
 class UDPMotion final : public Input::MotionDevice {
 public:
-    explicit UDPMotion(std::string ip_, int port_, u32 pad_, CemuhookUDP::Client* client_)
+    explicit UDPMotion(std::string ip_, u16 port_, u16 pad_, CemuhookUDP::Client* client_)
         : ip(std::move(ip_)), port(port_), pad(pad_), client(client_) {}
 
     Input::MotionStatus GetStatus() const override {
-        return client->GetPadState(pad).motion_status;
+        return client->GetPadState(ip, port, pad).motion_status;
     }
 
 private:
     const std::string ip;
-    const int port;
-    const u32 pad;
+    const u16 port;
+    const u16 pad;
     CemuhookUDP::Client* client;
     mutable std::mutex mutex;
 };
@@ -39,8 +39,8 @@ UDPMotionFactory::UDPMotionFactory(std::shared_ptr<CemuhookUDP::Client> client_)
  */
 std::unique_ptr<Input::MotionDevice> UDPMotionFactory::Create(const Common::ParamPackage& params) {
     auto ip = params.Get("ip", "127.0.0.1");
-    const auto port = params.Get("port", 26760);
-    const auto pad = static_cast<u32>(params.Get("pad_index", 0));
+    const auto port = static_cast<u16>(params.Get("port", 26760));
+    const auto pad = static_cast<u16>(params.Get("pad_index", 0));
 
     return std::make_unique<UDPMotion>(std::move(ip), port, pad, client.get());
 }
@@ -59,35 +59,33 @@ Common::ParamPackage UDPMotionFactory::GetNextInput() {
     Common::ParamPackage params;
     CemuhookUDP::UDPPadStatus pad;
     auto& queue = client->GetPadQueue();
-    for (std::size_t pad_number = 0; pad_number < queue.size(); ++pad_number) {
-        while (queue[pad_number].Pop(pad)) {
-            if (pad.motion == CemuhookUDP::PadMotion::Undefined || std::abs(pad.motion_value) < 1) {
-                continue;
-            }
-            params.Set("engine", "cemuhookudp");
-            params.Set("ip", "127.0.0.1");
-            params.Set("port", 26760);
-            params.Set("pad_index", static_cast<int>(pad_number));
-            params.Set("motion", static_cast<u16>(pad.motion));
-            return params;
+    while (queue.Pop(pad)) {
+        if (pad.motion == CemuhookUDP::PadMotion::Undefined || std::abs(pad.motion_value) < 1) {
+            continue;
         }
+        params.Set("engine", "cemuhookudp");
+        params.Set("ip", pad.host);
+        params.Set("port", static_cast<u16>(pad.port));
+        params.Set("pad_index", static_cast<u16>(pad.pad_index));
+        params.Set("motion", static_cast<u16>(pad.motion));
+        return params;
     }
     return params;
 }
 
 class UDPTouch final : public Input::TouchDevice {
 public:
-    explicit UDPTouch(std::string ip_, int port_, u32 pad_, CemuhookUDP::Client* client_)
+    explicit UDPTouch(std::string ip_, u16 port_, u16 pad_, CemuhookUDP::Client* client_)
         : ip(std::move(ip_)), port(port_), pad(pad_), client(client_) {}
 
     std::tuple<float, float, bool> GetStatus() const override {
-        return client->GetPadState(pad).touch_status;
+        return client->GetPadState(ip, port, pad).touch_status;
     }
 
 private:
     const std::string ip;
-    const int port;
-    const u32 pad;
+    const u16 port;
+    const u16 pad;
     CemuhookUDP::Client* client;
     mutable std::mutex mutex;
 };
@@ -103,8 +101,8 @@ UDPTouchFactory::UDPTouchFactory(std::shared_ptr<CemuhookUDP::Client> client_)
  */
 std::unique_ptr<Input::TouchDevice> UDPTouchFactory::Create(const Common::ParamPackage& params) {
     auto ip = params.Get("ip", "127.0.0.1");
-    const auto port = params.Get("port", 26760);
-    const auto pad = static_cast<u32>(params.Get("pad_index", 0));
+    const auto port = static_cast<u16>(params.Get("port", 26760));
+    const auto pad = static_cast<u16>(params.Get("pad_index", 0));
 
     return std::make_unique<UDPTouch>(std::move(ip), port, pad, client.get());
 }
@@ -123,18 +121,16 @@ Common::ParamPackage UDPTouchFactory::GetNextInput() {
     Common::ParamPackage params;
     CemuhookUDP::UDPPadStatus pad;
     auto& queue = client->GetPadQueue();
-    for (std::size_t pad_number = 0; pad_number < queue.size(); ++pad_number) {
-        while (queue[pad_number].Pop(pad)) {
-            if (pad.touch == CemuhookUDP::PadTouch::Undefined) {
-                continue;
-            }
-            params.Set("engine", "cemuhookudp");
-            params.Set("ip", "127.0.0.1");
-            params.Set("port", 26760);
-            params.Set("pad_index", static_cast<int>(pad_number));
-            params.Set("touch", static_cast<u16>(pad.touch));
-            return params;
+    while (queue.Pop(pad)) {
+        if (pad.touch == CemuhookUDP::PadTouch::Undefined) {
+            continue;
         }
+        params.Set("engine", "cemuhookudp");
+        params.Set("ip", pad.host);
+        params.Set("port", static_cast<u16>(pad.port));
+        params.Set("pad_index", static_cast<u16>(pad.pad_index));
+        params.Set("touch", static_cast<u16>(pad.touch));
+        return params;
     }
     return params;
 }

src/yuzu/configuration/config.cpp

@@ -568,16 +568,11 @@ void Config::ReadMotionTouchValues() {
         ReadSetting(QStringLiteral("touch_from_button_map"), 0).toInt();
     Settings::values.touch_from_button_map_index =
         std::clamp(Settings::values.touch_from_button_map_index, 0, num_touch_from_button_maps - 1);
-    Settings::values.udp_input_address =
-        ReadSetting(QStringLiteral("udp_input_address"),
-                    QString::fromUtf8(InputCommon::CemuhookUDP::DEFAULT_ADDR))
+    Settings::values.udp_input_servers =
+        ReadSetting(QStringLiteral("udp_input_servers"),
+                    QString::fromUtf8(InputCommon::CemuhookUDP::DEFAULT_SRV))
             .toString()
             .toStdString();
-    Settings::values.udp_input_port = static_cast<u16>(
-        ReadSetting(QStringLiteral("udp_input_port"), InputCommon::CemuhookUDP::DEFAULT_PORT)
-            .toInt());
-    Settings::values.udp_pad_index =
-        static_cast<u8>(ReadSetting(QStringLiteral("udp_pad_index"), 0).toUInt());
 }
 
 void Config::ReadCoreValues() {
@@ -1108,12 +1103,9 @@ void Config::SaveMotionTouchValues() {
                  false);
     WriteSetting(QStringLiteral("touch_from_button_map"),
                  Settings::values.touch_from_button_map_index, 0);
-    WriteSetting(QStringLiteral("udp_input_address"),
-                 QString::fromStdString(Settings::values.udp_input_address),
-                 QString::fromUtf8(InputCommon::CemuhookUDP::DEFAULT_ADDR));
-    WriteSetting(QStringLiteral("udp_input_port"), Settings::values.udp_input_port,
-                 InputCommon::CemuhookUDP::DEFAULT_PORT);
-    WriteSetting(QStringLiteral("udp_pad_index"), Settings::values.udp_pad_index, 0);
+    WriteSetting(QStringLiteral("udp_input_servers"),
+                 QString::fromStdString(Settings::values.udp_input_servers),
+                 QString::fromUtf8(InputCommon::CemuhookUDP::DEFAULT_SRV));
 
     qt_config->beginWriteArray(QStringLiteral("touch_from_button_maps"));
     for (std::size_t p = 0; p < Settings::values.touch_from_button_maps.size(); ++p) {

src/yuzu/configuration/configure_motion_touch.cpp

@@ -3,10 +3,12 @@
 // Refer to the license.txt file included.
 
 #include <array>
+#include <sstream>
 #include <QCloseEvent>
 #include <QLabel>
 #include <QMessageBox>
 #include <QPushButton>
+#include <QStringListModel>
 #include <QVBoxLayout>
 #include "common/logging/log.h"
 #include "core/settings.h"
@@ -74,11 +76,6 @@ void CalibrationConfigurationDialog::UpdateButtonText(const QString& text) {
     cancel_button->setText(text);
 }
 
-constexpr std::array<std::pair<const char*, const char*>, 2> MotionProviders = {{
-    {"motion_emu", QT_TRANSLATE_NOOP("ConfigureMotionTouch", "Mouse (Right Click)")},
-    {"cemuhookudp", QT_TRANSLATE_NOOP("ConfigureMotionTouch", "CemuhookUDP")},
-}};
-
 constexpr std::array<std::pair<const char*, const char*>, 2> TouchProviders = {{
     {"emu_window", QT_TRANSLATE_NOOP("ConfigureMotionTouch", "Emulator Window")},
     {"cemuhookudp", QT_TRANSLATE_NOOP("ConfigureMotionTouch", "CemuhookUDP")},
@@ -89,9 +86,6 @@ ConfigureMotionTouch::ConfigureMotionTouch(QWidget* parent,
     : QDialog(parent), input_subsystem{input_subsystem_},
       ui(std::make_unique<Ui::ConfigureMotionTouch>()) {
     ui->setupUi(this);
-    for (const auto& [provider, name] : MotionProviders) {
-        ui->motion_provider->addItem(tr(name), QString::fromUtf8(provider));
-    }
     for (const auto& [provider, name] : TouchProviders) {
         ui->touch_provider->addItem(tr(name), QString::fromUtf8(provider));
     }
@@ -116,8 +110,6 @@ void ConfigureMotionTouch::SetConfiguration() {
     const std::string motion_engine = motion_param.Get("engine", "motion_emu");
     const std::string touch_engine = touch_param.Get("engine", "emu_window");
 
-    ui->motion_provider->setCurrentIndex(
-        ui->motion_provider->findData(QString::fromStdString(motion_engine)));
     ui->touch_provider->setCurrentIndex(
         ui->touch_provider->findData(QString::fromStdString(touch_engine)));
     ui->touch_from_button_checkbox->setChecked(Settings::values.use_touch_from_button);
@@ -133,23 +125,30 @@ void ConfigureMotionTouch::SetConfiguration() {
     max_x = touch_param.Get("max_x", 1800);
     max_y = touch_param.Get("max_y", 850);
 
-    ui->udp_server->setText(QString::fromStdString(Settings::values.udp_input_address));
-    ui->udp_port->setText(QString::number(Settings::values.udp_input_port));
-    ui->udp_pad_index->setCurrentIndex(Settings::values.udp_pad_index);
+    ui->udp_server->setText(QString::fromStdString("127.0.0.1"));
+    ui->udp_port->setText(QString::number(26760));
+
+    udp_server_list_model = new QStringListModel(this);
+    udp_server_list_model->setStringList({});
+    ui->udp_server_list->setModel(udp_server_list_model);
+
+    std::stringstream ss(Settings::values.udp_input_servers);
+    std::string token;
+
+    while (std::getline(ss, token, ',')) {
+        const int row = udp_server_list_model->rowCount();
+        udp_server_list_model->insertRows(row, 1);
+        const QModelIndex index = udp_server_list_model->index(row);
+        udp_server_list_model->setData(index, QString::fromStdString(token));
+    }
 }
 
 void ConfigureMotionTouch::UpdateUiDisplay() {
-    const QString motion_engine = ui->motion_provider->currentData().toString();
     const QString touch_engine = ui->touch_provider->currentData().toString();
     const QString cemuhook_udp = QStringLiteral("cemuhookudp");
 
-    if (motion_engine == QStringLiteral("motion_emu")) {
-        ui->motion_sensitivity_label->setVisible(true);
-        ui->motion_sensitivity->setVisible(true);
-    } else {
-        ui->motion_sensitivity_label->setVisible(false);
-        ui->motion_sensitivity->setVisible(false);
-    }
+    ui->motion_sensitivity_label->setVisible(true);
+    ui->motion_sensitivity->setVisible(true);
 
     if (touch_engine == cemuhook_udp) {
         ui->touch_calibration->setVisible(true);
@@ -163,19 +162,15 @@ void ConfigureMotionTouch::UpdateUiDisplay() {
         ui->touch_calibration_label->setVisible(false);
     }
 
-    if (motion_engine == cemuhook_udp || touch_engine == cemuhook_udp) {
-        ui->udp_config_group_box->setVisible(true);
-    } else {
-        ui->udp_config_group_box->setVisible(false);
-    }
+    ui->udp_config_group_box->setVisible(true);
 }
 
 void ConfigureMotionTouch::ConnectEvents() {
-    connect(ui->motion_provider, qOverload<int>(&QComboBox::currentIndexChanged), this,
-            [this](int index) { UpdateUiDisplay(); });
     connect(ui->touch_provider, qOverload<int>(&QComboBox::currentIndexChanged), this,
             [this](int index) { UpdateUiDisplay(); });
     connect(ui->udp_test, &QPushButton::clicked, this, &ConfigureMotionTouch::OnCemuhookUDPTest);
+    connect(ui->udp_add, &QPushButton::clicked, this, &ConfigureMotionTouch::OnUDPAddServer);
+    connect(ui->udp_remove, &QPushButton::clicked, this, &ConfigureMotionTouch::OnUDPDeleteServer);
     connect(ui->touch_calibration_config, &QPushButton::clicked, this,
             &ConfigureMotionTouch::OnConfigureTouchCalibration);
     connect(ui->touch_from_button_config_btn, &QPushButton::clicked, this,
@@ -187,13 +182,58 @@ void ConfigureMotionTouch::ConnectEvents() {
     });
 }
 
+void ConfigureMotionTouch::OnUDPAddServer() {
+    QRegExp re(tr("^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?["
+                  "0-9][0-9]?)$")); // a valid ip address
+    bool ok;
+    QString port_text = ui->udp_port->text();
+    QString server_text = ui->udp_server->text();
+    const QString server_string = tr("%1:%2").arg(server_text, port_text);
+    int port_number = port_text.toInt(&ok, 10);
+    int row = udp_server_list_model->rowCount();
+
+    if (!ok) {
+        QMessageBox::warning(this, tr("yuzu"), tr("Port number has invalid characters"));
+        return;
+    }
+    if (port_number < 0 || port_number > 65353) {
+        QMessageBox::warning(this, tr("yuzu"), tr("Port has to be in range 0 and 65353"));
+        return;
+    }
+    if (!re.exactMatch(server_text)) {
+        QMessageBox::warning(this, tr("yuzu"), tr("IP address is not valid"));
+        return;
+    }
+    // Search for duplicates
+    for (const auto& item : udp_server_list_model->stringList()) {
+        if (item == server_string) {
+            QMessageBox::warning(this, tr("yuzu"), tr("This UDP server already exists"));
+            return;
+        }
+    }
+    // Limit server count to 8
+    if (row == 8) {
+        QMessageBox::warning(this, tr("yuzu"), tr("Unable to add more than 8 servers"));
+        return;
+    }
+
+    udp_server_list_model->insertRows(row, 1);
+    QModelIndex index = udp_server_list_model->index(row);
+    udp_server_list_model->setData(index, server_string);
+    ui->udp_server_list->setCurrentIndex(index);
+}
+
+void ConfigureMotionTouch::OnUDPDeleteServer() {
+    udp_server_list_model->removeRows(ui->udp_server_list->currentIndex().row(), 1);
+}
+
 void ConfigureMotionTouch::OnCemuhookUDPTest() {
     ui->udp_test->setEnabled(false);
     ui->udp_test->setText(tr("Testing"));
     udp_test_in_progress = true;
     InputCommon::CemuhookUDP::TestCommunication(
-        ui->udp_server->text().toStdString(), static_cast<u16>(ui->udp_port->text().toInt()),
-        static_cast<u32>(ui->udp_pad_index->currentIndex()), 24872,
+        ui->udp_server->text().toStdString(), static_cast<u16>(ui->udp_port->text().toInt()), 0,
+        24872,
         [this] {
             LOG_INFO(Frontend, "UDP input test success");
             QMetaObject::invokeMethod(this, "ShowUDPTestResult", Q_ARG(bool, true));
@@ -207,9 +247,9 @@ void ConfigureMotionTouch::OnCemuhookUDPTest() {
 void ConfigureMotionTouch::OnConfigureTouchCalibration() {
     ui->touch_calibration_config->setEnabled(false);
     ui->touch_calibration_config->setText(tr("Configuring"));
-    CalibrationConfigurationDialog dialog(
-        this, ui->udp_server->text().toStdString(), static_cast<u16>(ui->udp_port->text().toUInt()),
-        static_cast<u8>(ui->udp_pad_index->currentIndex()), 24872);
+    CalibrationConfigurationDialog dialog(this, ui->udp_server->text().toStdString(),
+                                          static_cast<u16>(ui->udp_port->text().toUInt()), 0,
+                                          24872);
     dialog.exec();
     if (dialog.completed) {
         min_x = dialog.min_x;
@@ -269,7 +309,7 @@ void ConfigureMotionTouch::OnConfigureTouchFromButton() {
 
 bool ConfigureMotionTouch::CanCloseDialog() {
     if (udp_test_in_progress) {
-        QMessageBox::warning(this, tr("Citra"),
+        QMessageBox::warning(this, tr("yuzu"),
                              tr("UDP Test or calibration configuration is in progress.<br>Please "
                                 "wait for them to finish."));
         return false;
@@ -282,17 +322,11 @@ void ConfigureMotionTouch::ApplyConfiguration() {
         return;
     }
 
-    std::string motion_engine = ui->motion_provider->currentData().toString().toStdString();
     std::string touch_engine = ui->touch_provider->currentData().toString().toStdString();
 
-    Common::ParamPackage motion_param{}, touch_param{};
-    motion_param.Set("engine", std::move(motion_engine));
+    Common::ParamPackage touch_param{};
     touch_param.Set("engine", std::move(touch_engine));
 
-    if (motion_engine == "motion_emu") {
-        motion_param.Set("sensitivity", static_cast<float>(ui->motion_sensitivity->value()));
-    }
-
     if (touch_engine == "cemuhookudp") {
         touch_param.Set("min_x", min_x);
         touch_param.Set("min_y", min_y);
@@ -300,15 +334,25 @@ void ConfigureMotionTouch::ApplyConfiguration() {
         touch_param.Set("max_y", max_y);
     }
 
-    Settings::values.motion_device = motion_param.Serialize();
     Settings::values.touch_device = touch_param.Serialize();
     Settings::values.use_touch_from_button = ui->touch_from_button_checkbox->isChecked();
     Settings::values.touch_from_button_map_index = ui->touch_from_button_map->currentIndex();
     Settings::values.touch_from_button_maps = touch_from_button_maps;
-    Settings::values.udp_input_address = ui->udp_server->text().toStdString();
-    Settings::values.udp_input_port = static_cast<u16>(ui->udp_port->text().toInt());
-    Settings::values.udp_pad_index = static_cast<u8>(ui->udp_pad_index->currentIndex());
+    Settings::values.udp_input_servers = GetUDPServerString();
     input_subsystem->ReloadInputDevices();
 
     accept();
 }
+
+std::string ConfigureMotionTouch::GetUDPServerString() const {
+    QString input_servers;
+
+    for (const auto& item : udp_server_list_model->stringList()) {
+        input_servers += item;
+        input_servers += QLatin1Char{','};
+    }
+
+    // Remove last comma
+    input_servers.chop(1);
+    return input_servers.toStdString();
+}

src/yuzu/configuration/configure_motion_touch.h

@@ -10,6 +10,7 @@
 
 class QLabel;
 class QPushButton;
+class QStringListModel;
 class QVBoxLayout;
 
 namespace InputCommon {
@@ -62,6 +63,8 @@ public slots:
     void ApplyConfiguration();
 
 private slots:
+    void OnUDPAddServer();
+    void OnUDPDeleteServer();
     void OnCemuhookUDPTest();
     void OnConfigureTouchCalibration();
     void OnConfigureTouchFromButton();
@@ -73,10 +76,12 @@ private:
     void UpdateUiDisplay();
     void ConnectEvents();
     bool CanCloseDialog();
+    std::string GetUDPServerString() const;
 
     InputCommon::InputSubsystem* input_subsystem;
 
     std::unique_ptr<Ui::ConfigureMotionTouch> ui;
+    QStringListModel* udp_server_list_model;
 
     // Coordinate system of the CemuhookUDP touch provider
     int min_x{};

src/yuzu/configuration/configure_motion_touch.ui

@@ -2,38 +2,27 @@
 <ui version="4.0">
  <class>ConfigureMotionTouch</class>
  <widget class="QDialog" name="ConfigureMotionTouch">
-  <property name="windowTitle">
-   <string>Configure Motion / Touch</string>
-  </property>
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>500</width>
-    <height>450</height>
+    <height>482</height>
    </rect>
   </property>
+  <property name="windowTitle">
+   <string>Configure Motion / Touch</string>
+  </property>
+  <property name="styleSheet">
+   <string notr="true"/>
+  </property>
   <layout class="QVBoxLayout">
    <item>
     <widget class="QGroupBox" name="motion_group_box">
      <property name="title">
-      <string>Motion</string>
+      <string>Mouse Motion</string>
      </property>
      <layout class="QVBoxLayout">
-      <item>
-       <layout class="QHBoxLayout">
-        <item>
-         <widget class="QLabel" name="motion_provider_label">
-          <property name="text">
-           <string>Motion Provider:</string>
-          </property>
-         </widget>
-        </item>
-        <item>
-         <widget class="QComboBox" name="motion_provider"/>
-        </item>
-       </layout>
-      </item>
       <item>
        <layout class="QHBoxLayout">
         <item>
@@ -180,103 +169,171 @@
        </widget>
       </item>
       <item>
-       <layout class="QHBoxLayout">
+       <layout class="QHBoxLayout" name="horizontalLayout">
         <item>
-         <widget class="QLabel" name="udp_server_label">
-          <property name="text">
-           <string>Server:</string>
-          </property>
-         </widget>
+         <widget class="QListView" name="udp_server_list"/>
         </item>
         <item>
-         <widget class="QLineEdit" name="udp_server">
-          <property name="sizePolicy">
-           <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
-            <horstretch>0</horstretch>
-            <verstretch>0</verstretch>
-           </sizepolicy>
+         <layout class="QVBoxLayout" name="verticalLayout">
+          <property name="leftMargin">
+           <number>0</number>
           </property>
-         </widget>
-        </item>
-       </layout>
-      </item>
-      <item>
-       <layout class="QHBoxLayout">
-        <item>
-         <widget class="QLabel" name="udp_port_label">
-          <property name="text">
-           <string>Port:</string>
+          <property name="topMargin">
+           <number>0</number>
           </property>
-         </widget>
-        </item>
-        <item>
-         <widget class="QLineEdit" name="udp_port">
-          <property name="sizePolicy">
-           <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
-            <horstretch>0</horstretch>
-            <verstretch>0</verstretch>
-           </sizepolicy>
+          <property name="rightMargin">
+           <number>0</number>
           </property>
-         </widget>
-        </item>
-       </layout>
-      </item>
-      <item>
-       <layout class="QHBoxLayout">
-        <item>
-         <widget class="QLabel" name="udp_pad_index_label">
-          <property name="text">
-           <string>Pad:</string>
+          <property name="bottomMargin">
+           <number>0</number>
           </property>
-         </widget>
-        </item>
-        <item>
-         <widget class="QComboBox" name="udp_pad_index">
           <item>
-           <property name="text">
-            <string>Pad 1</string>
-           </property>
+           <layout class="QHBoxLayout">
+            <property name="leftMargin">
+             <number>3</number>
+            </property>
+            <property name="topMargin">
+             <number>3</number>
+            </property>
+            <property name="rightMargin">
+             <number>0</number>
+            </property>
+            <item>
+             <widget class="QLabel" name="udp_server_label">
+              <property name="text">
+               <string>Server:</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QLineEdit" name="udp_server">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+             </widget>
+            </item>
+           </layout>
           </item>
           <item>
-           <property name="text">
-            <string>Pad 2</string>
-           </property>
+           <layout class="QHBoxLayout">
+            <property name="leftMargin">
+             <number>3</number>
+            </property>
+            <property name="rightMargin">
+             <number>0</number>
+            </property>
+            <item>
+             <widget class="QLabel" name="udp_port_label">
+              <property name="text">
+               <string>Port:</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QLineEdit" name="udp_port">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Minimum" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+             </widget>
+            </item>
+           </layout>
           </item>
           <item>
-           <property name="text">
-            <string>Pad 3</string>
-           </property>
+           <layout class="QHBoxLayout">
+            <property name="leftMargin">
+             <number>3</number>
+            </property>
+            <property name="rightMargin">
+             <number>0</number>
+            </property>
+            <item>
+             <widget class="QLabel" name="udp_learn_more">
+              <property name="text">
+               <string>Learn More</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QPushButton" name="udp_test">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="text">
+               <string>Test</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <widget class="QPushButton" name="udp_add">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="text">
+               <string>Add Server</string>
+              </property>
+             </widget>
+            </item>
+           </layout>
           </item>
           <item>
-           <property name="text">
-            <string>Pad 4</string>
-           </property>
+           <spacer name="verticalSpacer_3">
+            <property name="orientation">
+             <enum>Qt::Vertical</enum>
+            </property>
+            <property name="sizeHint" stdset="0">
+             <size>
+              <width>20</width>
+              <height>40</height>
+             </size>
+            </property>
+           </spacer>
           </item>
-         </widget>
-        </item>
-       </layout>
-      </item>
-      <item>
-       <layout class="QHBoxLayout">
-        <item>
-         <widget class="QLabel" name="udp_learn_more">
-          <property name="text">
-           <string>Learn More</string>
-          </property>
-         </widget>
-        </item>
-        <item>
-         <widget class="QPushButton" name="udp_test">
-          <property name="sizePolicy">
-           <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
-            <horstretch>0</horstretch>
-            <verstretch>0</verstretch>
-           </sizepolicy>
-          </property>
-          <property name="text">
-           <string>Test</string>
-          </property>
-         </widget>
+          <item>
+           <layout class="QHBoxLayout" name="horizontalLayout_2">
+            <property name="topMargin">
+             <number>0</number>
+            </property>
+            <item>
+             <widget class="QPushButton" name="udp_remove">
+              <property name="sizePolicy">
+               <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+                <horstretch>0</horstretch>
+                <verstretch>0</verstretch>
+               </sizepolicy>
+              </property>
+              <property name="text">
+               <string>Remove Server</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <spacer name="horizontalSpacer_2">
+              <property name="orientation">
+               <enum>Qt::Horizontal</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>40</width>
+                <height>20</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+           </layout>
+          </item>
+         </layout>
         </item>
        </layout>
       </item>
@@ -312,6 +369,16 @@
    <signal>accepted()</signal>
    <receiver>ConfigureMotionTouch</receiver>
    <slot>ApplyConfiguration()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>20</x>
+     <y>20</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>20</x>
+     <y>20</y>
+    </hint>
+   </hints>
   </connection>
  </connections>
 </ui>

src/yuzu_cmd/config.cpp

@@ -306,10 +306,8 @@ void Config::ReadValues() {
         sdl2_config->GetInteger("ControlsGeneral", "touch_diameter_x", 15);
     Settings::values.touchscreen.diameter_y =
         sdl2_config->GetInteger("ControlsGeneral", "touch_diameter_y", 15);
-    Settings::values.udp_input_address =
-        sdl2_config->Get("Controls", "udp_input_address", InputCommon::CemuhookUDP::DEFAULT_ADDR);
-    Settings::values.udp_input_port = static_cast<u16>(sdl2_config->GetInteger(
-        "Controls", "udp_input_port", InputCommon::CemuhookUDP::DEFAULT_PORT));
+    Settings::values.udp_input_servers =
+        sdl2_config->Get("Controls", "udp_input_address", InputCommon::CemuhookUDP::DEFAULT_SRV);
 
     std::transform(keyboard_keys.begin(), keyboard_keys.end(),
                    Settings::values.keyboard_keys.begin(), InputCommon::GenerateKeyboardParam);