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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include <thread>
#include <Cocoa/Cocoa.h>
#include <Foundation/Foundation.h>
#include <IOKit/hid/IOHIDLib.h>
#include "Common/Logging/Log.h"
#include "Common/StringUtil.h"
#include "Common/Thread.h"
#include "InputCommon/ControllerInterface/ControllerInterface.h"
#include "InputCommon/ControllerInterface/OSX/OSX.h"
#include "InputCommon/ControllerInterface/OSX/OSXJoystick.h"
#include "InputCommon/ControllerInterface/OSX/RunLoopStopper.h"
namespace ciface
{
namespace OSX
{
constexpr CFTimeInterval FOREVER = 1e20;
static std::thread s_hotplug_thread;
static RunLoopStopper s_stopper;
static IOHIDManagerRef HIDManager = nullptr;
static CFStringRef OurRunLoop = CFSTR("DolphinOSXInput");
void DeviceElementDebugPrint(const void* value, void* context)
{
IOHIDElementRef e = (IOHIDElementRef)value;
bool recurse = false;
if (context)
recurse = *(bool*)context;
std::string type = "";
switch (IOHIDElementGetType(e))
{
case kIOHIDElementTypeInput_Axis:
type = "axis";
break;
case kIOHIDElementTypeInput_Button:
type = "button";
break;
case kIOHIDElementTypeInput_Misc:
type = "misc";
break;
case kIOHIDElementTypeInput_ScanCodes:
type = "scancodes";
break;
case kIOHIDElementTypeOutput:
type = "output";
break;
case kIOHIDElementTypeFeature:
type = "feature";
break;
case kIOHIDElementTypeCollection:
type = "collection";
break;
}
std::string c_type = "";
if (type == "collection")
{
switch (IOHIDElementGetCollectionType(e))
{
case kIOHIDElementCollectionTypePhysical:
c_type = "physical";
break;
case kIOHIDElementCollectionTypeApplication:
c_type = "application";
break;
case kIOHIDElementCollectionTypeLogical:
c_type = "logical";
break;
case kIOHIDElementCollectionTypeReport:
c_type = "report";
break;
case kIOHIDElementCollectionTypeNamedArray:
c_type = "namedArray";
break;
case kIOHIDElementCollectionTypeUsageSwitch:
c_type = "usageSwitch";
break;
case kIOHIDElementCollectionTypeUsageModifier:
c_type = "usageModifier";
break;
}
}
c_type.append(" ");
NSLog(@"%s%s%spage: 0x%x usage: 0x%x name: %@ "
"lmin: %ld lmax: %ld pmin: %ld pmax: %ld",
type.c_str(), type == "collection" ? ":" : "", type == "collection" ? c_type.c_str() : " ",
IOHIDElementGetUsagePage(e), IOHIDElementGetUsage(e),
IOHIDElementGetName(e), // usually just nullptr
IOHIDElementGetLogicalMin(e), IOHIDElementGetLogicalMax(e), IOHIDElementGetPhysicalMin(e),
IOHIDElementGetPhysicalMax(e));
if ((type == "collection") && recurse)
{
CFArrayRef elements = IOHIDElementGetChildren(e);
CFRange range = {0, CFArrayGetCount(elements)};
// this leaks...but it's just debug code, right? :D
CFArrayApplyFunction(elements, range, DeviceElementDebugPrint, nullptr);
}
}
static void DeviceDebugPrint(IOHIDDeviceRef device)
{
#if 0
#define shortlog(x) NSLog(@"%s: %@", x, IOHIDDeviceGetProperty(device, CFSTR(x)));
NSLog(@"-------------------------");
NSLog(@"Got Device: %@",
IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductKey)));
shortlog(kIOHIDTransportKey)
shortlog(kIOHIDVendorIDKey)
shortlog(kIOHIDVendorIDSourceKey)
shortlog(kIOHIDProductIDKey)
shortlog(kIOHIDVersionNumberKey)
shortlog(kIOHIDManufacturerKey)
shortlog(kIOHIDProductKey)
shortlog(kIOHIDSerialNumberKey)
shortlog(kIOHIDCountryCodeKey)
shortlog(kIOHIDLocationIDKey)
shortlog(kIOHIDDeviceUsageKey)
shortlog(kIOHIDDeviceUsagePageKey)
shortlog(kIOHIDDeviceUsagePairsKey)
shortlog(kIOHIDPrimaryUsageKey)
shortlog(kIOHIDPrimaryUsagePageKey)
shortlog(kIOHIDMaxInputReportSizeKey)
shortlog(kIOHIDMaxOutputReportSizeKey)
shortlog(kIOHIDMaxFeatureReportSizeKey)
shortlog(kIOHIDReportIntervalKey)
shortlog(kIOHIDReportDescriptorKey)
#endif
}
static void* g_window;
static std::string GetDeviceRefName(IOHIDDeviceRef inIOHIDDeviceRef)
{
const NSString* name = reinterpret_cast<const NSString*>(
IOHIDDeviceGetProperty(inIOHIDDeviceRef, CFSTR(kIOHIDProductKey)));
return (name != nullptr) ? StripSpaces([name UTF8String]) : "Unknown device";
}
static void DeviceRemovalCallback(void* inContext, IOReturn inResult, void* inSender,
IOHIDDeviceRef inIOHIDDeviceRef)
{
g_controller_interface.RemoveDevice([&inIOHIDDeviceRef](const auto* device) {
const Joystick* joystick = dynamic_cast<const Joystick*>(device);
if (joystick && joystick->IsSameDevice(inIOHIDDeviceRef))
return true;
return false;
});
}
static void DeviceMatchingCallback(void* inContext, IOReturn inResult, void* inSender,
IOHIDDeviceRef inIOHIDDeviceRef)
{
DeviceDebugPrint(inIOHIDDeviceRef);
std::string name = GetDeviceRefName(inIOHIDDeviceRef);
// Add a device if it's of a type we want
if (IOHIDDeviceConformsTo(inIOHIDDeviceRef, kHIDPage_GenericDesktop, kHIDUsage_GD_Joystick) ||
IOHIDDeviceConformsTo(inIOHIDDeviceRef, kHIDPage_GenericDesktop, kHIDUsage_GD_GamePad) ||
IOHIDDeviceConformsTo(inIOHIDDeviceRef, kHIDPage_GenericDesktop,
kHIDUsage_GD_MultiAxisController))
{
g_controller_interface.AddDevice(std::make_shared<Joystick>(inIOHIDDeviceRef, name));
}
}
void Init(void* window)
{
g_window = window;
HIDManager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
if (!HIDManager)
ERROR_LOG(SERIALINTERFACE, "Failed to create HID Manager reference");
IOHIDManagerSetDeviceMatching(HIDManager, nullptr);
if (IOHIDManagerOpen(HIDManager, kIOHIDOptionsTypeNone) != kIOReturnSuccess)
ERROR_LOG(SERIALINTERFACE, "Failed to open HID Manager");
// Callbacks for acquisition or loss of a matching device
IOHIDManagerRegisterDeviceMatchingCallback(HIDManager, DeviceMatchingCallback, nullptr);
IOHIDManagerRegisterDeviceRemovalCallback(HIDManager, DeviceRemovalCallback, nullptr);
// Match devices that are plugged in right now
IOHIDManagerScheduleWithRunLoop(HIDManager, CFRunLoopGetCurrent(), OurRunLoop);
while (CFRunLoopRunInMode(OurRunLoop, 0, TRUE) == kCFRunLoopRunHandledSource)
{
};
IOHIDManagerUnscheduleFromRunLoop(HIDManager, CFRunLoopGetCurrent(), OurRunLoop);
// Enable hotplugging
s_hotplug_thread = std::thread([] {
Common::SetCurrentThreadName("IOHIDManager Hotplug Thread");
NOTICE_LOG(SERIALINTERFACE, "IOHIDManager hotplug thread started");
IOHIDManagerScheduleWithRunLoop(HIDManager, CFRunLoopGetCurrent(), OurRunLoop);
s_stopper.AddToRunLoop(CFRunLoopGetCurrent(), OurRunLoop);
CFRunLoopRunInMode(OurRunLoop, FOREVER, FALSE);
s_stopper.RemoveFromRunLoop(CFRunLoopGetCurrent(), OurRunLoop);
IOHIDManagerUnscheduleFromRunLoop(HIDManager, CFRunLoopGetCurrent(), OurRunLoop);
NOTICE_LOG(SERIALINTERFACE, "IOHIDManager hotplug thread stopped");
});
}
void PopulateDevices(void* window)
{
DeInit();
Init(window);
}
void DeInit()
{
s_stopper.Signal();
s_hotplug_thread.join();
// This closes all devices as well
IOHIDManagerClose(HIDManager, kIOHIDOptionsTypeNone);
CFRelease(HIDManager);
}
}
}
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