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-rw-r--r--src/input_common/drivers/gc_adapter.h135
1 files changed, 135 insertions, 0 deletions
diff --git a/src/input_common/drivers/gc_adapter.h b/src/input_common/drivers/gc_adapter.h
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index 000000000..7ce1912a3
--- /dev/null
+++ b/src/input_common/drivers/gc_adapter.h
@@ -0,0 +1,135 @@
+// Copyright 2014 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <memory>
+#include <mutex>
+#include <stop_token>
+#include <string>
+#include <thread>
+
+#include "input_common/input_engine.h"
+
+struct libusb_context;
+struct libusb_device;
+struct libusb_device_handle;
+
+namespace InputCommon {
+
+class LibUSBContext;
+class LibUSBDeviceHandle;
+
+class GCAdapter : public InputEngine {
+public:
+ explicit GCAdapter(std::string input_engine_);
+ ~GCAdapter() override;
+
+ Common::Input::VibrationError SetRumble(
+ const PadIdentifier& identifier, const Common::Input::VibrationStatus& vibration) override;
+
+ /// Used for automapping features
+ std::vector<Common::ParamPackage> GetInputDevices() const override;
+ ButtonMapping GetButtonMappingForDevice(const Common::ParamPackage& params) override;
+ AnalogMapping GetAnalogMappingForDevice(const Common::ParamPackage& params) override;
+ Common::Input::ButtonNames GetUIName(const Common::ParamPackage& params) const override;
+
+private:
+ enum class PadButton {
+ Undefined = 0x0000,
+ ButtonLeft = 0x0001,
+ ButtonRight = 0x0002,
+ ButtonDown = 0x0004,
+ ButtonUp = 0x0008,
+ TriggerZ = 0x0010,
+ TriggerR = 0x0020,
+ TriggerL = 0x0040,
+ ButtonA = 0x0100,
+ ButtonB = 0x0200,
+ ButtonX = 0x0400,
+ ButtonY = 0x0800,
+ ButtonStart = 0x1000,
+ };
+
+ enum class PadAxes : u8 {
+ StickX,
+ StickY,
+ SubstickX,
+ SubstickY,
+ TriggerLeft,
+ TriggerRight,
+ Undefined,
+ };
+
+ enum class ControllerTypes {
+ None,
+ Wired,
+ Wireless,
+ };
+
+ struct GCController {
+ ControllerTypes type = ControllerTypes::None;
+ PadIdentifier identifier{};
+ bool enable_vibration = false;
+ u8 rumble_amplitude{};
+ std::array<u8, 6> axis_origin{};
+ u8 reset_origin_counter{};
+ };
+
+ using AdapterPayload = std::array<u8, 37>;
+
+ void UpdatePadType(std::size_t port, ControllerTypes pad_type);
+ void UpdateControllers(const AdapterPayload& adapter_payload);
+ void UpdateStateButtons(std::size_t port, u8 b1, u8 b2);
+ void UpdateStateAxes(std::size_t port, const AdapterPayload& adapter_payload);
+
+ void AdapterInputThread(std::stop_token stop_token);
+
+ void AdapterScanThread(std::stop_token stop_token);
+
+ bool IsPayloadCorrect(const AdapterPayload& adapter_payload, s32 payload_size);
+
+ /// For use in initialization, querying devices to find the adapter
+ bool Setup();
+
+ /// Returns true if we successfully gain access to GC Adapter
+ bool CheckDeviceAccess();
+
+ /// Captures GC Adapter endpoint address
+ /// Returns true if the endpoint was set correctly
+ bool GetGCEndpoint(libusb_device* device);
+
+ /// Returns true if there is a device connected to port
+ bool DeviceConnected(std::size_t port) const;
+
+ /// For shutting down, clear all data, join all threads, release usb
+ void Reset();
+
+ void UpdateVibrations();
+
+ /// Updates vibration state of all controllers
+ void SendVibrations();
+
+ Common::Input::ButtonNames GetUIButtonName(const Common::ParamPackage& params) const;
+
+ std::unique_ptr<LibUSBDeviceHandle> usb_adapter_handle;
+ std::array<GCController, 4> pads;
+
+ std::jthread adapter_input_thread;
+ std::jthread adapter_scan_thread;
+ bool restart_scan_thread{};
+
+ std::unique_ptr<LibUSBContext> libusb_ctx;
+
+ u8 input_endpoint{0};
+ u8 output_endpoint{0};
+ u8 input_error_counter{0};
+ u8 output_error_counter{0};
+ int vibration_counter{0};
+
+ bool rumble_enabled{true};
+ bool vibration_changed{true};
+};
+} // namespace InputCommon