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// SPDX-FileCopyrightText: 2014 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <array>
#include <memory>
#include <string>
#include <thread>
#include "common/polyfill_thread.h"
#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::DriverResult SetVibration(
const PadIdentifier& identifier, const Common::Input::VibrationStatus& vibration) override;
bool IsVibrationEnabled(const PadIdentifier& identifier) 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;
bool IsStickInverted(const Common::ParamPackage& params) 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
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