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https://github.com/dolphin-emu/dolphin.git
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c8a6dc6c23
libusb on Windows is limited to only a single context. Trying to open more than one can cause device enumerations to fail randomly. libusb is thread-safe and we don't use the manual polling support (with `poll()`) so this should be safe.
83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
// Copyright 2017 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 <memory>
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#ifdef __LIBUSB__
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#include <libusb.h>
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#include "Common/LibusbContext.h"
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#endif
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#include "Common/CommonTypes.h"
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#include "Common/StringUtil.h"
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#include "UICommon/USBUtils.h"
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#ifdef __LIBUSB__
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static std::shared_ptr<libusb_context> s_libusb_context;
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#endif
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// Because opening and getting the device name from devices is slow, especially on Windows
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// with usbdk, we cannot do that for every single device. We should however still show
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// device names for known Wii peripherals.
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static const std::map<std::pair<u16, u16>, std::string> s_wii_peripherals = {{
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{{0x046d, 0x0a03}, "Logitech Microphone"},
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{{0x057e, 0x0308}, "Wii Speak"},
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{{0x057e, 0x0309}, "Nintendo USB Microphone"},
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{{0x057e, 0x030a}, "Ubisoft Motion Tracking Camera"},
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{{0x0e6f, 0x0129}, "Disney Infinity Reader (Portal Device)"},
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{{0x1430, 0x0100}, "Tony Hawk Ride Skateboard"},
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{{0x1430, 0x0150}, "Skylanders Portal"},
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{{0x1bad, 0x0004}, "Harmonix Guitar Controller"},
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{{0x1bad, 0x3110}, "Rock Band 3 Mustang Guitar Dongle"},
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{{0x1bad, 0x3430}, "Rock Band Drum Set"},
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{{0x21a4, 0xac40}, "EA Active NFL"},
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}};
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namespace USBUtils
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{
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void Init()
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{
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#ifdef __LIBUSB__
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s_libusb_context = LibusbContext::Get();
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#endif
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}
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void Shutdown()
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{
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#ifdef __LIBUSB__
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s_libusb_context = nullptr;
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#endif
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}
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std::map<std::pair<u16, u16>, std::string> GetInsertedDevices()
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{
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std::map<std::pair<u16, u16>, std::string> devices;
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#ifdef __LIBUSB__
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if (!s_libusb_context)
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return devices;
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libusb_device** list;
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const ssize_t cnt = libusb_get_device_list(s_libusb_context.get(), &list);
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for (ssize_t i = 0; i < cnt; ++i)
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{
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libusb_device_descriptor descr;
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libusb_get_device_descriptor(list[i], &descr);
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const std::pair<u16, u16> vid_pid{descr.idVendor, descr.idProduct};
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devices[vid_pid] = GetDeviceName(vid_pid);
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}
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libusb_free_device_list(list, 1);
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#endif
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return devices;
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}
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std::string GetDeviceName(const std::pair<u16, u16> vid_pid)
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{
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const auto iter = s_wii_peripherals.find(vid_pid);
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const std::string device_name = iter == s_wii_peripherals.cend() ? "Unknown" : iter->second;
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return StringFromFormat("%04x:%04x - %s", vid_pid.first, vid_pid.second, device_name.c_str());
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}
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} // namespace USBUtils
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