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https://github.com/yuzu-emu/yuzu.git
synced 2024-08-21 21:23:23 +02:00
Merge pull request #7217 from yuzu-emu/revert-6515-gc_thread_safe
Revert "input_common: Fix data race on GC implementation"
This commit is contained in:
commit
2686bf6734
@ -14,73 +14,15 @@
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namespace GCAdapter {
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class LibUSBContext {
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public:
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explicit LibUSBContext() {
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init_result = libusb_init(&ctx);
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}
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~LibUSBContext() {
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libusb_exit(ctx);
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}
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LibUSBContext& operator=(const LibUSBContext&) = delete;
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LibUSBContext(const LibUSBContext&) = delete;
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LibUSBContext& operator=(LibUSBContext&&) noexcept = delete;
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LibUSBContext(LibUSBContext&&) noexcept = delete;
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[[nodiscard]] int InitResult() const noexcept {
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return init_result;
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}
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[[nodiscard]] libusb_context* get() noexcept {
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return ctx;
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}
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private:
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libusb_context* ctx;
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int init_result{};
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};
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class LibUSBDeviceHandle {
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public:
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explicit LibUSBDeviceHandle(libusb_context* ctx, uint16_t vid, uint16_t pid) noexcept {
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handle = libusb_open_device_with_vid_pid(ctx, vid, pid);
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}
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~LibUSBDeviceHandle() noexcept {
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if (handle) {
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libusb_release_interface(handle, 1);
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libusb_close(handle);
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}
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}
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LibUSBDeviceHandle& operator=(const LibUSBDeviceHandle&) = delete;
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LibUSBDeviceHandle(const LibUSBDeviceHandle&) = delete;
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LibUSBDeviceHandle& operator=(LibUSBDeviceHandle&&) noexcept = delete;
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LibUSBDeviceHandle(LibUSBDeviceHandle&&) noexcept = delete;
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[[nodiscard]] libusb_device_handle* get() noexcept {
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return handle;
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}
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private:
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libusb_device_handle* handle{};
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};
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Adapter::Adapter() {
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if (usb_adapter_handle) {
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if (usb_adapter_handle != nullptr) {
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return;
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}
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LOG_INFO(Input, "GC Adapter Initialization started");
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libusb_ctx = std::make_unique<LibUSBContext>();
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const int init_res = libusb_ctx->InitResult();
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const int init_res = libusb_init(&libusb_ctx);
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if (init_res == LIBUSB_SUCCESS) {
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adapter_scan_thread =
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std::jthread([this](std::stop_token stop_token) { AdapterScanThread(stop_token); });
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adapter_scan_thread = std::thread(&Adapter::AdapterScanThread, this);
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} else {
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LOG_ERROR(Input, "libusb could not be initialized. failed with error = {}", init_res);
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}
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@ -90,15 +32,17 @@ Adapter::~Adapter() {
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Reset();
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}
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void Adapter::AdapterInputThread(std::stop_token stop_token) {
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void Adapter::AdapterInputThread() {
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LOG_DEBUG(Input, "GC Adapter input thread started");
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s32 payload_size{};
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AdapterPayload adapter_payload{};
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adapter_scan_thread = {};
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if (adapter_scan_thread.joinable()) {
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adapter_scan_thread.join();
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}
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while (!stop_token.stop_requested()) {
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libusb_interrupt_transfer(usb_adapter_handle->get(), input_endpoint, adapter_payload.data(),
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while (adapter_input_thread_running) {
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libusb_interrupt_transfer(usb_adapter_handle, input_endpoint, adapter_payload.data(),
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static_cast<s32>(adapter_payload.size()), &payload_size, 16);
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if (IsPayloadCorrect(adapter_payload, payload_size)) {
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UpdateControllers(adapter_payload);
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@ -108,8 +52,7 @@ void Adapter::AdapterInputThread(std::stop_token stop_token) {
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}
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if (restart_scan_thread) {
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adapter_scan_thread =
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std::jthread([this](std::stop_token token) { AdapterScanThread(token); });
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adapter_scan_thread = std::thread(&Adapter::AdapterScanThread, this);
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restart_scan_thread = false;
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}
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}
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@ -121,7 +64,7 @@ bool Adapter::IsPayloadCorrect(const AdapterPayload& adapter_payload, s32 payloa
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adapter_payload[0]);
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if (input_error_counter++ > 20) {
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LOG_ERROR(Input, "GC adapter timeout, Is the adapter connected?");
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adapter_input_thread.request_stop();
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adapter_input_thread_running = false;
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restart_scan_thread = true;
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}
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return false;
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@ -153,7 +96,7 @@ void Adapter::UpdatePadType(std::size_t port, ControllerTypes pad_type) {
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return;
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}
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// Device changed reset device and set new type
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pads[port] = {};
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ResetDevice(port);
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pads[port].type = pad_type;
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}
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@ -270,9 +213,8 @@ void Adapter::SendVibrations() {
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const u8 p3 = pads[2].enable_vibration;
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const u8 p4 = pads[3].enable_vibration;
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std::array<u8, 5> payload = {rumble_command, p1, p2, p3, p4};
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const int err =
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libusb_interrupt_transfer(usb_adapter_handle->get(), output_endpoint, payload.data(),
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static_cast<s32>(payload.size()), &size, 16);
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const int err = libusb_interrupt_transfer(usb_adapter_handle, output_endpoint, payload.data(),
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static_cast<s32>(payload.size()), &size, 16);
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if (err) {
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LOG_DEBUG(Input, "Adapter libusb write failed: {}", libusb_error_name(err));
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if (output_error_counter++ > 5) {
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@ -291,53 +233,56 @@ bool Adapter::RumblePlay(std::size_t port, u8 amplitude) {
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return rumble_enabled;
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}
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void Adapter::AdapterScanThread(std::stop_token stop_token) {
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usb_adapter_handle = nullptr;
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pads = {};
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while (!stop_token.stop_requested() && !Setup()) {
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std::this_thread::sleep_for(std::chrono::seconds(2));
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void Adapter::AdapterScanThread() {
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adapter_scan_thread_running = true;
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adapter_input_thread_running = false;
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if (adapter_input_thread.joinable()) {
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adapter_input_thread.join();
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}
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ClearLibusbHandle();
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ResetDevices();
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while (adapter_scan_thread_running && !adapter_input_thread_running) {
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Setup();
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std::this_thread::sleep_for(std::chrono::seconds(1));
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}
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}
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bool Adapter::Setup() {
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constexpr u16 nintendo_vid = 0x057e;
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constexpr u16 gc_adapter_pid = 0x0337;
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usb_adapter_handle =
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std::make_unique<LibUSBDeviceHandle>(libusb_ctx->get(), nintendo_vid, gc_adapter_pid);
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if (!usb_adapter_handle->get()) {
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return false;
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void Adapter::Setup() {
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usb_adapter_handle = libusb_open_device_with_vid_pid(libusb_ctx, 0x057e, 0x0337);
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if (usb_adapter_handle == NULL) {
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return;
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}
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if (!CheckDeviceAccess()) {
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usb_adapter_handle = nullptr;
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return false;
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ClearLibusbHandle();
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return;
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}
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libusb_device* const device = libusb_get_device(usb_adapter_handle->get());
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libusb_device* device = libusb_get_device(usb_adapter_handle);
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LOG_INFO(Input, "GC adapter is now connected");
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// GC Adapter found and accessible, registering it
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if (GetGCEndpoint(device)) {
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adapter_scan_thread_running = false;
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adapter_input_thread_running = true;
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rumble_enabled = true;
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input_error_counter = 0;
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output_error_counter = 0;
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adapter_input_thread =
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std::jthread([this](std::stop_token stop_token) { AdapterInputThread(stop_token); });
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return true;
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adapter_input_thread = std::thread(&Adapter::AdapterInputThread, this);
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}
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return false;
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}
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bool Adapter::CheckDeviceAccess() {
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// This fixes payload problems from offbrand GCAdapters
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const s32 control_transfer_error =
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libusb_control_transfer(usb_adapter_handle->get(), 0x21, 11, 0x0001, 0, nullptr, 0, 1000);
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libusb_control_transfer(usb_adapter_handle, 0x21, 11, 0x0001, 0, nullptr, 0, 1000);
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if (control_transfer_error < 0) {
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LOG_ERROR(Input, "libusb_control_transfer failed with error= {}", control_transfer_error);
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}
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s32 kernel_driver_error = libusb_kernel_driver_active(usb_adapter_handle->get(), 0);
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s32 kernel_driver_error = libusb_kernel_driver_active(usb_adapter_handle, 0);
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if (kernel_driver_error == 1) {
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kernel_driver_error = libusb_detach_kernel_driver(usb_adapter_handle->get(), 0);
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kernel_driver_error = libusb_detach_kernel_driver(usb_adapter_handle, 0);
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if (kernel_driver_error != 0 && kernel_driver_error != LIBUSB_ERROR_NOT_SUPPORTED) {
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LOG_ERROR(Input, "libusb_detach_kernel_driver failed with error = {}",
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kernel_driver_error);
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@ -345,13 +290,15 @@ bool Adapter::CheckDeviceAccess() {
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}
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if (kernel_driver_error && kernel_driver_error != LIBUSB_ERROR_NOT_SUPPORTED) {
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libusb_close(usb_adapter_handle);
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usb_adapter_handle = nullptr;
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return false;
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}
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const int interface_claim_error = libusb_claim_interface(usb_adapter_handle->get(), 0);
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const int interface_claim_error = libusb_claim_interface(usb_adapter_handle, 0);
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if (interface_claim_error) {
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LOG_ERROR(Input, "libusb_claim_interface failed with error = {}", interface_claim_error);
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libusb_close(usb_adapter_handle);
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usb_adapter_handle = nullptr;
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return false;
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}
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@ -385,17 +332,57 @@ bool Adapter::GetGCEndpoint(libusb_device* device) {
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// This transfer seems to be responsible for clearing the state of the adapter
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// Used to clear the "busy" state of when the device is unexpectedly unplugged
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unsigned char clear_payload = 0x13;
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libusb_interrupt_transfer(usb_adapter_handle->get(), output_endpoint, &clear_payload,
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libusb_interrupt_transfer(usb_adapter_handle, output_endpoint, &clear_payload,
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sizeof(clear_payload), nullptr, 16);
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return true;
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}
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void Adapter::JoinThreads() {
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restart_scan_thread = false;
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adapter_input_thread_running = false;
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adapter_scan_thread_running = false;
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if (adapter_scan_thread.joinable()) {
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adapter_scan_thread.join();
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}
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if (adapter_input_thread.joinable()) {
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adapter_input_thread.join();
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}
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}
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void Adapter::ClearLibusbHandle() {
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if (usb_adapter_handle) {
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libusb_release_interface(usb_adapter_handle, 1);
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libusb_close(usb_adapter_handle);
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usb_adapter_handle = nullptr;
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}
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}
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void Adapter::ResetDevices() {
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for (std::size_t i = 0; i < pads.size(); ++i) {
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ResetDevice(i);
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}
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}
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void Adapter::ResetDevice(std::size_t port) {
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pads[port].type = ControllerTypes::None;
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pads[port].enable_vibration = false;
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pads[port].rumble_amplitude = 0;
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pads[port].buttons = 0;
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pads[port].last_button = PadButton::Undefined;
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pads[port].axis_values.fill(0);
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pads[port].reset_origin_counter = 0;
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}
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void Adapter::Reset() {
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adapter_scan_thread = {};
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adapter_input_thread = {};
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usb_adapter_handle = nullptr;
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pads = {};
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libusb_ctx = nullptr;
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JoinThreads();
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ClearLibusbHandle();
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ResetDevices();
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if (libusb_ctx) {
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libusb_exit(libusb_ctx);
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}
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}
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std::vector<Common::ParamPackage> Adapter::GetInputDevices() const {
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@ -3,14 +3,11 @@
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// Refer to the license.txt file included.
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#pragma once
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#include <algorithm>
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#include <functional>
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#include <mutex>
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#include <stop_token>
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#include <thread>
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#include <unordered_map>
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#include "common/common_types.h"
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#include "common/threadsafe_queue.h"
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#include "input_common/main.h"
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@ -21,9 +18,6 @@ struct libusb_device_handle;
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namespace GCAdapter {
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class LibUSBContext;
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class LibUSBDeviceHandle;
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enum class PadButton {
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Undefined = 0x0000,
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ButtonLeft = 0x0001,
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@ -69,11 +63,11 @@ struct GCPadStatus {
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};
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struct GCController {
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ControllerTypes type = ControllerTypes::None;
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bool enable_vibration = false;
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u8 rumble_amplitude = 0;
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u16 buttons = 0;
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PadButton last_button = PadButton::Undefined;
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ControllerTypes type{};
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bool enable_vibration{};
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u8 rumble_amplitude{};
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u16 buttons{};
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PadButton last_button{};
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std::array<s16, 6> axis_values{};
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std::array<u8, 6> axis_origin{};
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u8 reset_origin_counter{};
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@ -115,9 +109,9 @@ private:
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void UpdateStateAxes(std::size_t port, const AdapterPayload& adapter_payload);
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void UpdateVibrations();
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void AdapterInputThread(std::stop_token stop_token);
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void AdapterInputThread();
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void AdapterScanThread(std::stop_token stop_token);
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void AdapterScanThread();
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bool IsPayloadCorrect(const AdapterPayload& adapter_payload, s32 payload_size);
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@ -125,7 +119,13 @@ private:
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void SendVibrations();
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/// For use in initialization, querying devices to find the adapter
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bool Setup();
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void Setup();
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/// Resets status of all GC controller devices to a disconnected state
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void ResetDevices();
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/// Resets status of device connected to a disconnected state
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void ResetDevice(std::size_t port);
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/// Returns true if we successfully gain access to GC Adapter
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bool CheckDeviceAccess();
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@ -137,15 +137,23 @@ private:
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/// For shutting down, clear all data, join all threads, release usb
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void Reset();
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std::unique_ptr<LibUSBDeviceHandle> usb_adapter_handle;
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// Join all threads
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void JoinThreads();
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// Release usb handles
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void ClearLibusbHandle();
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libusb_device_handle* usb_adapter_handle = nullptr;
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std::array<GCController, 4> pads;
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Common::SPSCQueue<GCPadStatus> pad_queue;
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std::jthread adapter_input_thread;
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std::jthread adapter_scan_thread;
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bool restart_scan_thread{};
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std::thread adapter_input_thread;
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std::thread adapter_scan_thread;
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bool adapter_input_thread_running;
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bool adapter_scan_thread_running;
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bool restart_scan_thread;
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std::unique_ptr<LibUSBContext> libusb_ctx;
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libusb_context* libusb_ctx;
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u8 input_endpoint{0};
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u8 output_endpoint{0};
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