yuzu: Add ring controller test button

src/yuzu/configuration/configure_ringcon.cpp

@@ -4,7 +4,9 @@
 #include <memory>
 #include <QKeyEvent>
 #include <QMenu>
+#include <QMessageBox>
 #include <QTimer>
+#include <fmt/format.h>
 
 #include "core/hid/emulated_controller.h"
 #include "core/hid/hid_core.h"
@@ -130,6 +132,13 @@ ConfigureRingController::ConfigureRingController(QWidget* parent,
     emulated_controller->SaveCurrentConfig();
     emulated_controller->EnableConfiguration();
 
+    Core::HID::ControllerUpdateCallback engine_callback{
+        .on_change = [this](Core::HID::ControllerTriggerType type) { ControllerUpdate(type); },
+        .is_npad_service = false,
+    };
+    callback_key = emulated_controller->SetCallback(engine_callback);
+    is_controller_set = true;
+
     LoadConfiguration();
 
     for (int sub_button_id = 0; sub_button_id < ANALOG_SUB_BUTTONS_NUM; ++sub_button_id) {
@@ -187,6 +196,9 @@ ConfigureRingController::ConfigureRingController(QWidget* parent,
     connect(ui->restore_defaults_button, &QPushButton::clicked, this,
             &ConfigureRingController::RestoreDefaults);
 
+    connect(ui->enable_ring_controller_button, &QPushButton::clicked, this,
+            &ConfigureRingController::EnableRingController);
+
     timeout_timer->setSingleShot(true);
     connect(timeout_timer.get(), &QTimer::timeout, [this] { SetPollingResult({}, true); });
 
@@ -202,7 +214,13 @@ ConfigureRingController::ConfigureRingController(QWidget* parent,
 }
 
 ConfigureRingController::~ConfigureRingController() {
+    emulated_controller->SetPollingMode(Common::Input::PollingMode::Active);
     emulated_controller->DisableConfiguration();
+
+    if (is_controller_set) {
+        emulated_controller->DeleteCallback(callback_key);
+        is_controller_set = false;
+    }
 };
 
 void ConfigureRingController::changeEvent(QEvent* event) {
@@ -256,6 +274,57 @@ void ConfigureRingController::RestoreDefaults() {
     UpdateUI();
 }
 
+void ConfigureRingController::EnableRingController() {
+    const auto dialog_title = tr("Error enabling ring input");
+
+    is_ring_enabled = false;
+    ui->ring_controller_sensor_value->setText(tr("Not connected"));
+
+    if (!Settings::values.enable_joycon_driver) {
+        QMessageBox::warning(this, dialog_title, tr("Direct Joycon driver is not enabled"));
+        return;
+    }
+
+    ui->enable_ring_controller_button->setEnabled(false);
+    ui->enable_ring_controller_button->setText(tr("Configuring"));
+    // SetPollingMode is blocking. Allow to update the button status before calling the command
+    repaint();
+
+    const auto result = emulated_controller->SetPollingMode(Common::Input::PollingMode::Ring);
+    switch (result) {
+    case Common::Input::DriverResult::Success:
+        is_ring_enabled = true;
+        break;
+    case Common::Input::DriverResult::NotSupported:
+        QMessageBox::warning(this, dialog_title,
+                             tr("The current mapped device doesn't support the ring controller"));
+        break;
+    case Common::Input::DriverResult::NoDeviceDetected:
+        QMessageBox::warning(this, dialog_title,
+                             tr("The current mapped device doesn't have a ring attached"));
+        break;
+    default:
+        QMessageBox::warning(this, dialog_title,
+                             tr("Unexpected driver result %1").arg(static_cast<int>(result)));
+        break;
+    }
+    ui->enable_ring_controller_button->setEnabled(true);
+    ui->enable_ring_controller_button->setText(tr("Enable"));
+}
+
+void ConfigureRingController::ControllerUpdate(Core::HID::ControllerTriggerType type) {
+    if (!is_ring_enabled) {
+        return;
+    }
+    if (type != Core::HID::ControllerTriggerType::RingController) {
+        return;
+    }
+
+    const auto value = emulated_controller->GetRingSensorValues();
+    const auto tex_value = QString::fromStdString(fmt::format("{:.3f}", value.raw_value));
+    ui->ring_controller_sensor_value->setText(tex_value);
+}
+
 void ConfigureRingController::HandleClick(
     QPushButton* button, std::function<void(const Common::ParamPackage&)> new_input_setter,
     InputCommon::Polling::InputType type) {