mirror of
https://github.com/dolphin-emu/dolphin.git
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555 lines
15 KiB
C++
555 lines
15 KiB
C++
// Copyright 2014 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <libusb.h>
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#include <mutex>
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#include "Common/Event.h"
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#include "Common/Flag.h"
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#include "Common/Logging/Log.h"
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#include "Common/Thread.h"
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#include "Core/ConfigManager.h"
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#include "Core/Core.h"
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#include "Core/CoreTiming.h"
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#include "Core/HW/SI/SI.h"
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#include "Core/HW/SystemTimers.h"
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#include "Core/NetPlayProto.h"
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#include "InputCommon/GCAdapter.h"
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#include "InputCommon/GCPadStatus.h"
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namespace GCAdapter
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{
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static bool CheckDeviceAccess(libusb_device* device);
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static void AddGCAdapter(libusb_device* device);
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static void ResetRumbleLockNeeded();
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static void Reset();
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static void Setup();
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static bool s_detected = false;
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static libusb_device_handle* s_handle = nullptr;
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static u8 s_controller_type[SerialInterface::MAX_SI_CHANNELS] = {
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ControllerTypes::CONTROLLER_NONE, ControllerTypes::CONTROLLER_NONE,
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ControllerTypes::CONTROLLER_NONE, ControllerTypes::CONTROLLER_NONE};
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static u8 s_controller_rumble[4];
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static std::mutex s_mutex;
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static u8 s_controller_payload[37];
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static u8 s_controller_payload_swap[37];
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static std::atomic<int> s_controller_payload_size = {0};
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static std::thread s_adapter_input_thread;
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static std::thread s_adapter_output_thread;
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static Common::Flag s_adapter_thread_running;
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static Common::Event s_rumble_data_available;
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static std::mutex s_init_mutex;
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static std::thread s_adapter_detect_thread;
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static Common::Flag s_adapter_detect_thread_running;
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static std::function<void(void)> s_detect_callback;
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static bool s_libusb_driver_not_supported = false;
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static libusb_context* s_libusb_context;
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#if defined(__FreeBSD__) && __FreeBSD__ >= 11
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static bool s_libusb_hotplug_enabled = true;
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#else
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static bool s_libusb_hotplug_enabled = false;
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#endif
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#if defined(LIBUSB_API_VERSION) && LIBUSB_API_VERSION >= 0x01000102
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static libusb_hotplug_callback_handle s_hotplug_handle;
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#endif
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static u8 s_endpoint_in = 0;
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static u8 s_endpoint_out = 0;
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static u64 s_last_init = 0;
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static void Read()
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{
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int payload_size = 0;
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while (s_adapter_thread_running.IsSet())
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{
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libusb_interrupt_transfer(s_handle, s_endpoint_in, s_controller_payload_swap,
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sizeof(s_controller_payload_swap), &payload_size, 16);
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{
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std::lock_guard<std::mutex> lk(s_mutex);
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std::swap(s_controller_payload_swap, s_controller_payload);
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s_controller_payload_size.store(payload_size);
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}
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Common::YieldCPU();
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}
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}
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static void Write()
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{
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int size = 0;
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while (true)
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{
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s_rumble_data_available.Wait();
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if (!s_adapter_thread_running.IsSet())
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return;
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u8 payload[5] = {0x11, s_controller_rumble[0], s_controller_rumble[1], s_controller_rumble[2],
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s_controller_rumble[3]};
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libusb_interrupt_transfer(s_handle, s_endpoint_out, payload, sizeof(payload), &size, 16);
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}
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}
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#if defined(LIBUSB_API_VERSION) && LIBUSB_API_VERSION >= 0x01000102
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static int HotplugCallback(libusb_context* ctx, libusb_device* dev, libusb_hotplug_event event,
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void* user_data)
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{
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if (event == LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED)
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{
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if (s_handle == nullptr && CheckDeviceAccess(dev))
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{
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std::lock_guard<std::mutex> lk(s_init_mutex);
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AddGCAdapter(dev);
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}
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}
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else if (event == LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT)
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{
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if (s_handle != nullptr && libusb_get_device(s_handle) == dev)
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Reset();
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}
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return 0;
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}
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#endif
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static void ScanThreadFunc()
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{
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Common::SetCurrentThreadName("GC Adapter Scanning Thread");
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NOTICE_LOG(SERIALINTERFACE, "GC Adapter scanning thread started");
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#if defined(LIBUSB_API_VERSION) && LIBUSB_API_VERSION >= 0x01000102
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#ifndef __FreeBSD__
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s_libusb_hotplug_enabled = libusb_has_capability(LIBUSB_CAP_HAS_HOTPLUG) != 0;
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#endif
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if (s_libusb_hotplug_enabled)
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{
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if (libusb_hotplug_register_callback(
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s_libusb_context,
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(libusb_hotplug_event)(LIBUSB_HOTPLUG_EVENT_DEVICE_ARRIVED |
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LIBUSB_HOTPLUG_EVENT_DEVICE_LEFT),
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LIBUSB_HOTPLUG_ENUMERATE, 0x057e, 0x0337, LIBUSB_HOTPLUG_MATCH_ANY, HotplugCallback,
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nullptr, &s_hotplug_handle) != LIBUSB_SUCCESS)
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s_libusb_hotplug_enabled = false;
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if (s_libusb_hotplug_enabled)
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NOTICE_LOG(SERIALINTERFACE, "Using libUSB hotplug detection");
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}
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#endif
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while (s_adapter_detect_thread_running.IsSet())
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{
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if (s_libusb_hotplug_enabled)
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{
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static timeval tv = {0, 500000};
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libusb_handle_events_timeout(s_libusb_context, &tv);
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}
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else
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{
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if (s_handle == nullptr)
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{
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std::lock_guard<std::mutex> lk(s_init_mutex);
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Setup();
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if (s_detected && s_detect_callback != nullptr)
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s_detect_callback();
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}
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Common::SleepCurrentThread(500);
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}
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}
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NOTICE_LOG(SERIALINTERFACE, "GC Adapter scanning thread stopped");
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}
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void SetAdapterCallback(std::function<void(void)> func)
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{
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s_detect_callback = func;
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}
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void Init()
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{
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if (s_handle != nullptr)
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return;
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if (Core::GetState() != Core::State::Uninitialized && Core::GetState() != Core::State::Starting)
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{
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if ((CoreTiming::GetTicks() - s_last_init) < SystemTimers::GetTicksPerSecond())
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return;
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s_last_init = CoreTiming::GetTicks();
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}
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s_libusb_driver_not_supported = false;
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if (UseAdapter())
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StartScanThread();
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}
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void StartScanThread()
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{
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if (s_adapter_detect_thread_running.IsSet())
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return;
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const int ret = libusb_init(&s_libusb_context);
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if (ret < 0)
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{
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ERROR_LOG(SERIALINTERFACE, "libusb_init failed with error: %d", ret);
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return;
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}
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s_adapter_detect_thread_running.Set(true);
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s_adapter_detect_thread = std::thread(ScanThreadFunc);
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}
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void StopScanThread()
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{
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if (s_adapter_detect_thread_running.TestAndClear())
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{
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s_adapter_detect_thread.join();
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}
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}
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static void Setup()
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{
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libusb_device** list;
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ssize_t cnt = libusb_get_device_list(s_libusb_context, &list);
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for (int i = 0; i < SerialInterface::MAX_SI_CHANNELS; i++)
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{
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s_controller_type[i] = ControllerTypes::CONTROLLER_NONE;
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s_controller_rumble[i] = 0;
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}
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for (int d = 0; d < cnt; d++)
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{
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libusb_device* device = list[d];
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if (CheckDeviceAccess(device))
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{
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// Only connect to a single adapter in case the user has multiple connected
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AddGCAdapter(device);
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break;
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}
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}
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libusb_free_device_list(list, 1);
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}
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static bool CheckDeviceAccess(libusb_device* device)
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{
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libusb_device_descriptor desc;
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int ret = libusb_get_device_descriptor(device, &desc);
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if (ret)
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{
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// could not acquire the descriptor, no point in trying to use it.
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ERROR_LOG(SERIALINTERFACE, "libusb_get_device_descriptor failed with error: %d", ret);
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return false;
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}
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if (desc.idVendor != 0x057e || desc.idProduct != 0x0337)
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{
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// This isn’t the device we are looking for.
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return false;
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}
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NOTICE_LOG(SERIALINTERFACE, "Found GC Adapter with Vendor: %X Product: %X Devnum: %d",
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desc.idVendor, desc.idProduct, 1);
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u8 bus = libusb_get_bus_number(device);
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u8 port = libusb_get_device_address(device);
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ret = libusb_open(device, &s_handle);
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if (ret == LIBUSB_ERROR_ACCESS)
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{
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ERROR_LOG(SERIALINTERFACE,
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"Dolphin does not have access to this device: Bus %03d Device %03d: ID %04X:%04X.",
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bus, port, desc.idVendor, desc.idProduct);
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return false;
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}
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if (ret)
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{
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ERROR_LOG(SERIALINTERFACE, "libusb_open failed to open device with error = %d", ret);
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if (ret == LIBUSB_ERROR_NOT_SUPPORTED)
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s_libusb_driver_not_supported = true;
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return false;
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}
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ret = libusb_kernel_driver_active(s_handle, 0);
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if (ret == 1)
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{
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ret = libusb_detach_kernel_driver(s_handle, 0);
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if (ret != 0 && ret != LIBUSB_ERROR_NOT_SUPPORTED)
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ERROR_LOG(SERIALINTERFACE, "libusb_detach_kernel_driver failed with error: %d", ret);
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}
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// this split is needed so that we don't avoid claiming the interface when
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// detaching the kernel driver is successful
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if (ret != 0 && ret != LIBUSB_ERROR_NOT_SUPPORTED)
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return false;
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ret = libusb_claim_interface(s_handle, 0);
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if (ret)
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{
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ERROR_LOG(SERIALINTERFACE, "libusb_claim_interface failed with error: %d", ret);
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return false;
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}
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return true;
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}
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static void AddGCAdapter(libusb_device* device)
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{
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libusb_config_descriptor* config = nullptr;
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libusb_get_config_descriptor(device, 0, &config);
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for (u8 ic = 0; ic < config->bNumInterfaces; ic++)
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{
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const libusb_interface* interfaceContainer = &config->interface[ic];
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for (int i = 0; i < interfaceContainer->num_altsetting; i++)
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{
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const libusb_interface_descriptor* interface = &interfaceContainer->altsetting[i];
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for (u8 e = 0; e < interface->bNumEndpoints; e++)
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{
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const libusb_endpoint_descriptor* endpoint = &interface->endpoint[e];
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if (endpoint->bEndpointAddress & LIBUSB_ENDPOINT_IN)
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s_endpoint_in = endpoint->bEndpointAddress;
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else
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s_endpoint_out = endpoint->bEndpointAddress;
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}
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}
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}
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int tmp = 0;
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unsigned char payload = 0x13;
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libusb_interrupt_transfer(s_handle, s_endpoint_out, &payload, sizeof(payload), &tmp, 16);
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s_adapter_thread_running.Set(true);
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s_adapter_input_thread = std::thread(Read);
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s_adapter_output_thread = std::thread(Write);
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s_detected = true;
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if (s_detect_callback != nullptr)
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s_detect_callback();
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ResetRumbleLockNeeded();
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}
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void Shutdown()
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{
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StopScanThread();
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#if defined(LIBUSB_API_VERSION) && LIBUSB_API_VERSION >= 0x01000102
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if (s_libusb_context && s_libusb_hotplug_enabled)
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libusb_hotplug_deregister_callback(s_libusb_context, s_hotplug_handle);
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#endif
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Reset();
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if (s_libusb_context)
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{
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libusb_exit(s_libusb_context);
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s_libusb_context = nullptr;
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}
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s_libusb_driver_not_supported = false;
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}
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static void Reset()
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{
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std::unique_lock<std::mutex> lock(s_init_mutex, std::defer_lock);
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if (!lock.try_lock())
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return;
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if (!s_detected)
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return;
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if (s_adapter_thread_running.TestAndClear())
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{
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s_rumble_data_available.Set();
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s_adapter_input_thread.join();
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s_adapter_output_thread.join();
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}
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for (int i = 0; i < SerialInterface::MAX_SI_CHANNELS; i++)
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s_controller_type[i] = ControllerTypes::CONTROLLER_NONE;
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s_detected = false;
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if (s_handle)
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{
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libusb_release_interface(s_handle, 0);
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libusb_close(s_handle);
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s_handle = nullptr;
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}
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if (s_detect_callback != nullptr)
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s_detect_callback();
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NOTICE_LOG(SERIALINTERFACE, "GC Adapter detached");
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}
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GCPadStatus Input(int chan)
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{
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if (!UseAdapter())
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return {};
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if (s_handle == nullptr || !s_detected)
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return {};
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int payload_size = 0;
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u8 controller_payload_copy[37];
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{
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std::lock_guard<std::mutex> lk(s_mutex);
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std::copy(std::begin(s_controller_payload), std::end(s_controller_payload),
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std::begin(controller_payload_copy));
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payload_size = s_controller_payload_size.load();
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}
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GCPadStatus pad = {};
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if (payload_size != sizeof(controller_payload_copy) ||
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controller_payload_copy[0] != LIBUSB_DT_HID)
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{
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ERROR_LOG(SERIALINTERFACE, "error reading payload (size: %d, type: %02x)", payload_size,
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controller_payload_copy[0]);
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Reset();
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}
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else
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{
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bool get_origin = false;
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u8 type = controller_payload_copy[1 + (9 * chan)] >> 4;
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if (type != ControllerTypes::CONTROLLER_NONE &&
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s_controller_type[chan] == ControllerTypes::CONTROLLER_NONE)
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{
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NOTICE_LOG(SERIALINTERFACE, "New device connected to Port %d of Type: %02x", chan + 1,
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controller_payload_copy[1 + (9 * chan)]);
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get_origin = true;
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}
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s_controller_type[chan] = type;
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if (s_controller_type[chan] != ControllerTypes::CONTROLLER_NONE)
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{
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u8 b1 = controller_payload_copy[1 + (9 * chan) + 1];
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u8 b2 = controller_payload_copy[1 + (9 * chan) + 2];
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if (b1 & (1 << 0))
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pad.button |= PAD_BUTTON_A;
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if (b1 & (1 << 1))
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pad.button |= PAD_BUTTON_B;
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if (b1 & (1 << 2))
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pad.button |= PAD_BUTTON_X;
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if (b1 & (1 << 3))
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pad.button |= PAD_BUTTON_Y;
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if (b1 & (1 << 4))
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pad.button |= PAD_BUTTON_LEFT;
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if (b1 & (1 << 5))
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pad.button |= PAD_BUTTON_RIGHT;
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if (b1 & (1 << 6))
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pad.button |= PAD_BUTTON_DOWN;
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if (b1 & (1 << 7))
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pad.button |= PAD_BUTTON_UP;
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if (b2 & (1 << 0))
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pad.button |= PAD_BUTTON_START;
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if (b2 & (1 << 1))
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pad.button |= PAD_TRIGGER_Z;
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if (b2 & (1 << 2))
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pad.button |= PAD_TRIGGER_R;
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if (b2 & (1 << 3))
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pad.button |= PAD_TRIGGER_L;
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if (get_origin)
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pad.button |= PAD_GET_ORIGIN;
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pad.stickX = controller_payload_copy[1 + (9 * chan) + 3];
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pad.stickY = controller_payload_copy[1 + (9 * chan) + 4];
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pad.substickX = controller_payload_copy[1 + (9 * chan) + 5];
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pad.substickY = controller_payload_copy[1 + (9 * chan) + 6];
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pad.triggerLeft = controller_payload_copy[1 + (9 * chan) + 7];
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pad.triggerRight = controller_payload_copy[1 + (9 * chan) + 8];
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}
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else if (!Core::WantsDeterminism())
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{
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// This is a hack to prevent a desync due to SI devices
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// being different and returning different values.
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// The corresponding code in DeviceGCAdapter has the same check
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pad.button = PAD_ERR_STATUS;
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}
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}
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return pad;
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}
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bool DeviceConnected(int chan)
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{
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return s_controller_type[chan] != ControllerTypes::CONTROLLER_NONE;
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}
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void ResetDeviceType(int chan)
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{
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s_controller_type[chan] = ControllerTypes::CONTROLLER_NONE;
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}
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bool UseAdapter()
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{
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const auto& si_devices = SConfig::GetInstance().m_SIDevice;
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return std::any_of(std::begin(si_devices), std::end(si_devices), [](const auto device_type) {
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return device_type == SerialInterface::SIDEVICE_WIIU_ADAPTER;
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});
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}
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void ResetRumble()
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{
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std::unique_lock<std::mutex> lock(s_init_mutex, std::defer_lock);
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if (!lock.try_lock())
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return;
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ResetRumbleLockNeeded();
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}
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// Needs to be called when s_init_mutex is locked in order to avoid
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// being called while the libusb state is being reset
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static void ResetRumbleLockNeeded()
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{
|
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if (!UseAdapter() || (s_handle == nullptr || !s_detected))
|
||
{
|
||
return;
|
||
}
|
||
|
||
std::fill(std::begin(s_controller_rumble), std::end(s_controller_rumble), 0);
|
||
|
||
unsigned char rumble[5] = {0x11, s_controller_rumble[0], s_controller_rumble[1],
|
||
s_controller_rumble[2], s_controller_rumble[3]};
|
||
|
||
int size = 0;
|
||
libusb_interrupt_transfer(s_handle, s_endpoint_out, rumble, sizeof(rumble), &size, 16);
|
||
|
||
INFO_LOG(SERIALINTERFACE, "Rumble state reset");
|
||
}
|
||
|
||
void Output(int chan, u8 rumble_command)
|
||
{
|
||
if (s_handle == nullptr || !UseAdapter() || !SConfig::GetInstance().m_AdapterRumble[chan])
|
||
return;
|
||
|
||
// Skip over rumble commands if it has not changed or the controller is wireless
|
||
if (rumble_command != s_controller_rumble[chan] &&
|
||
s_controller_type[chan] != ControllerTypes::CONTROLLER_WIRELESS)
|
||
{
|
||
s_controller_rumble[chan] = rumble_command;
|
||
s_rumble_data_available.Set();
|
||
}
|
||
}
|
||
|
||
bool IsDetected()
|
||
{
|
||
return s_detected;
|
||
}
|
||
|
||
bool IsDriverDetected()
|
||
{
|
||
return !s_libusb_driver_not_supported;
|
||
}
|
||
|
||
} // end of namespace GCAdapter
|