diff options
Diffstat (limited to 'LibOVR/Src/OVR_OSX_HIDDevice.cpp')
| -rw-r--r-- | LibOVR/Src/OVR_OSX_HIDDevice.cpp | 1798 |
1 files changed, 899 insertions, 899 deletions
diff --git a/LibOVR/Src/OVR_OSX_HIDDevice.cpp b/LibOVR/Src/OVR_OSX_HIDDevice.cpp index 40b63c9..e954ef4 100644 --- a/LibOVR/Src/OVR_OSX_HIDDevice.cpp +++ b/LibOVR/Src/OVR_OSX_HIDDevice.cpp @@ -1,899 +1,899 @@ -/************************************************************************************
-Filename : OVR_OSX_HIDDevice.cpp
-Content : OSX HID device implementation.
-Created : February 26, 2013
-Authors : Lee Cooper
-
-Copyright : Copyright 2013 Oculus VR, Inc. All Rights reserved.
-
-Use of this software is subject to the terms of the Oculus license
-agreement provided at the time of installation or download, or which
-otherwise accompanies this software in either electronic or hard copy form.
-
-*************************************************************************************/
-
-#include "OVR_OSX_HIDDevice.h"
-
-#include <IOKit/usb/IOUSBLib.h>
-
-namespace OVR { namespace OSX {
-
-static const UInt32 MAX_QUEUED_INPUT_REPORTS = 5;
-
-//-------------------------------------------------------------------------------------
-// **** OSX::DeviceManager
-
-HIDDeviceManager::HIDDeviceManager(DeviceManager* manager)
- : DevManager(manager)
-{
- HIDManager = NULL;
-}
-
-HIDDeviceManager::~HIDDeviceManager()
-{
-}
-
-CFRunLoopRef HIDDeviceManager::getRunLoop()
-{
- if (DevManager != NULL)
- {
- return DevManager->pThread->GetRunLoop();
- }
-
- return CFRunLoopGetCurrent();
-}
-
-bool HIDDeviceManager::initializeManager()
-{
- if (HIDManager != NULL)
- {
- return true;
- }
-
- HIDManager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
-
- if (!HIDManager)
- {
- return false;
- }
-
- // Create a Matching Dictionary
- CFMutableDictionaryRef matchDict =
- CFDictionaryCreateMutable(kCFAllocatorDefault,
- 2,
- &kCFTypeDictionaryKeyCallBacks,
- &kCFTypeDictionaryValueCallBacks);
-
- // Specify a device manufacturer in the Matching Dictionary
- UInt32 vendorId = Oculus_VendorId;
- CFNumberRef vendorIdRef = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &vendorId);
- CFDictionarySetValue(matchDict,
- CFSTR(kIOHIDVendorIDKey),
- vendorIdRef);
- // Register the Matching Dictionary to the HID Manager
- IOHIDManagerSetDeviceMatching(HIDManager, matchDict);
- CFRelease(vendorIdRef);
- CFRelease(matchDict);
-
- // Register a callback for USB device detection with the HID Manager
- IOHIDManagerRegisterDeviceMatchingCallback(HIDManager, &staticDeviceMatchingCallback, this);
-
- IOHIDManagerScheduleWithRunLoop(HIDManager, getRunLoop(), kCFRunLoopDefaultMode);
-
- return true;
-}
-
-bool HIDDeviceManager::Initialize()
-{
- return initializeManager();
-}
-
-void HIDDeviceManager::Shutdown()
-{
- OVR_ASSERT_LOG(HIDManager, ("Should have called 'Initialize' before 'Shutdown'."));
- CFRelease(HIDManager);
-
- LogText("OVR::OSX::HIDDeviceManager - shutting down.\n");
-}
-
-bool HIDDeviceManager::getIntProperty(IOHIDDeviceRef device, CFStringRef propertyName, SInt32* pResult)
-{
-
- CFTypeRef ref = IOHIDDeviceGetProperty(device, propertyName);
-
- if (!ref)
- {
- return false;
- }
-
- if (CFGetTypeID(ref) != CFNumberGetTypeID())
- {
- return false;
- }
-
- CFNumberGetValue((CFNumberRef) ref, kCFNumberSInt32Type, pResult);
-
- return true;
-}
-
-bool HIDDeviceManager::initVendorProductVersion(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc)
-{
-
- if (!getVendorId(device, &(pDevDesc->VendorId)))
- {
- return false;
- }
-
- if (!getProductId(device, &(pDevDesc->ProductId)))
- {
- return false;
- }
-
- return true;
-}
-
-bool HIDDeviceManager::initUsage(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc)
-{
-
- SInt32 result;
-
- if (!getIntProperty(device, CFSTR(kIOHIDPrimaryUsagePageKey), &result))
- {
- return false;
- }
-
- pDevDesc->UsagePage = result;
-
-
- if (!getIntProperty(device, CFSTR(kIOHIDPrimaryUsageKey), &result))
- {
- return false;
- }
-
- pDevDesc->Usage = result;
-
- return true;
-}
-
-bool HIDDeviceManager::initSerialNumber(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc)
-{
- return getSerialNumberString(device, &(pDevDesc->SerialNumber));
-}
-
-bool HIDDeviceManager::initStrings(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc)
-{
-
- // Regardless of whether they fail we'll try and get the remaining.
- getStringProperty(device, CFSTR(kIOHIDManufacturerKey), &(pDevDesc->Manufacturer));
- getStringProperty(device, CFSTR(kIOHIDProductKey), &(pDevDesc->Product));
-
- return true;
-}
-
-bool HIDDeviceManager::getStringProperty(IOHIDDeviceRef device,
- CFStringRef propertyName,
- String* pResult)
-{
-
- CFStringRef str = (CFStringRef) IOHIDDeviceGetProperty(device, propertyName);
-
- if (!str)
- {
- return false;
- }
-
- CFIndex length = CFStringGetLength(str);
- CFRange range = CFRangeMake(0, length);
-
- // Test the conversion first to get required buffer size.
- CFIndex bufferLength;
- CFIndex numberOfChars = CFStringGetBytes(str,
- range,
- kCFStringEncodingUTF8,
- (char) '?',
- FALSE,
- NULL,
- 0,
- &bufferLength);
-
- if (numberOfChars == 0)
- {
- return false;
- }
-
- // Now allocate buffer.
- char* buffer = new char[bufferLength+1];
-
- numberOfChars = CFStringGetBytes(str,
- range,
- kCFStringEncodingUTF8,
- (char) '?',
- FALSE,
- (UInt8*) buffer,
- bufferLength,
- NULL);
- OVR_ASSERT_LOG(numberOfChars != 0, ("CFStringGetBytes failed."));
-
- buffer[bufferLength] = '\0';
- *pResult = String(buffer);
-
- return true;
-}
-
-bool HIDDeviceManager::getVendorId(IOHIDDeviceRef device, UInt16* pResult)
-{
- SInt32 result;
-
- if (!getIntProperty(device, CFSTR(kIOHIDVendorIDKey), &result))
- {
- return false;
- }
-
- *pResult = result;
-
- return true;
-}
-
-bool HIDDeviceManager::getProductId(IOHIDDeviceRef device, UInt16* pResult)
-{
- SInt32 result;
-
- if (!getIntProperty(device, CFSTR(kIOHIDProductIDKey), &result))
- {
- return false;
- }
-
- *pResult = result;
-
- return true;
-}
-
-bool HIDDeviceManager::getLocationId(IOHIDDeviceRef device, SInt32* pResult)
-{
- SInt32 result;
-
- if (!getIntProperty(device, CFSTR(kIOHIDLocationIDKey), &result))
- {
- return false;
- }
-
- *pResult = result;
-
- return true;
-}
-
-bool HIDDeviceManager::getSerialNumberString(IOHIDDeviceRef device, String* pResult)
-{
-
- if (!getStringProperty(device, CFSTR(kIOHIDSerialNumberKey), pResult))
- {
- return false;
- }
-
- return true;
-}
-
-bool HIDDeviceManager::getPath(IOHIDDeviceRef device, String* pPath)
-{
-
- String transport;
- if (!getStringProperty(device, CFSTR(kIOHIDTransportKey), &transport))
- {
- return false;
- }
-
- UInt16 vendorId;
- if (!getVendorId(device, &vendorId))
- {
- return false;
- }
-
- UInt16 productId;
- if (!getProductId(device, &productId))
- {
- return false;
- }
-
- String serialNumber;
- if (!getSerialNumberString(device, &serialNumber))
- {
- return false;
- }
-
-
- StringBuffer buffer;
- buffer.AppendFormat("%s:vid=%04hx:pid=%04hx:ser=%s",
- transport.ToCStr(),
- vendorId,
- productId,
- serialNumber.ToCStr());
-
- *pPath = String(buffer);
-
- return true;
-}
-
-bool HIDDeviceManager::Enumerate(HIDEnumerateVisitor* enumVisitor)
-{
- if (!initializeManager())
- {
- return false;
- }
-
-
- CFSetRef deviceSet = IOHIDManagerCopyDevices(HIDManager);
- if (!deviceSet)
- return false;
-
- CFIndex deviceCount = CFSetGetCount(deviceSet);
-
- // Allocate a block of memory and read the set into it.
- IOHIDDeviceRef* devices = (IOHIDDeviceRef*) OVR_ALLOC(sizeof(IOHIDDeviceRef) * deviceCount);
- CFSetGetValues(deviceSet, (const void **) devices);
-
-
- // Iterate over devices.
- for (CFIndex deviceIndex = 0; deviceIndex < deviceCount; deviceIndex++)
- {
- IOHIDDeviceRef hidDev = devices[deviceIndex];
-
- if (!hidDev)
- {
- continue;
- }
-
- HIDDeviceDesc devDesc;
-
- if (getPath(hidDev, &(devDesc.Path)) &&
- initVendorProductVersion(hidDev, &devDesc) &&
- enumVisitor->MatchVendorProduct(devDesc.VendorId, devDesc.ProductId) &&
- initUsage(hidDev, &devDesc))
- {
- initStrings(hidDev, &devDesc);
- initSerialNumber(hidDev, &devDesc);
-
- // Look for the device to check if it is already opened.
- Ptr<DeviceCreateDesc> existingDevice = DevManager->FindHIDDevice(devDesc);
- // if device exists and it is opened then most likely the CreateHIDFile
- // will fail; therefore, we just set Enumerated to 'true' and continue.
- if (existingDevice && existingDevice->pDevice)
- {
- existingDevice->Enumerated = true;
- continue;
- }
-
- // Construct minimal device that the visitor callback can get feature reports from.
- OSX::HIDDevice device(this, hidDev);
-
- enumVisitor->Visit(device, devDesc);
- }
- }
-
- OVR_FREE(devices);
- CFRelease(deviceSet);
-
- return true;
-}
-
-OVR::HIDDevice* HIDDeviceManager::Open(const String& path)
-{
-
- Ptr<OSX::HIDDevice> device = *new OSX::HIDDevice(this);
-
- if (!device->HIDInitialize(path))
- {
- return NULL;
- }
-
- device->AddRef();
-
- return device;
-}
-
-bool HIDDeviceManager::getFullDesc(IOHIDDeviceRef device, HIDDeviceDesc* desc)
-{
-
- if (!initVendorProductVersion(device, desc))
- {
- return false;
- }
-
- if (!initUsage(device, desc))
- {
- return false;
- }
-
- if (!initSerialNumber(device, desc))
- {
- return false;
- }
-
- initStrings(device, desc);
-
- return true;
-}
-
-// New USB device specified in the matching dictionary has been added (callback function)
-void HIDDeviceManager::staticDeviceMatchingCallback(void *inContext,
- IOReturn inResult,
- void *inSender,
- IOHIDDeviceRef inIOHIDDeviceRef)
-{
- HIDDeviceManager* hidMgr = static_cast<HIDDeviceManager*>(inContext);
- HIDDeviceDesc hidDevDesc;
- hidMgr->getPath(inIOHIDDeviceRef, &hidDevDesc.Path);
- hidMgr->getFullDesc(inIOHIDDeviceRef, &hidDevDesc);
-
- hidMgr->DevManager->DetectHIDDevice(hidDevDesc);
-}
-
-//-------------------------------------------------------------------------------------
-// **** OSX::HIDDevice
-
-HIDDevice::HIDDevice(HIDDeviceManager* manager)
- : HIDManager(manager), InMinimalMode(false)
-{
- Device = NULL;
- RepluggedNotificationPort = 0;
-}
-
-// This is a minimal constructor used during enumeration for us to pass
-// a HIDDevice to the visit function (so that it can query feature reports).
-HIDDevice::HIDDevice(HIDDeviceManager* manager, IOHIDDeviceRef device)
-: HIDManager(manager), Device(device), InMinimalMode(true)
-{
- RepluggedNotificationPort = 0;
-}
-
-HIDDevice::~HIDDevice()
-{
- if (!InMinimalMode)
- {
- HIDShutdown();
- }
-}
-
-bool HIDDevice::HIDInitialize(const String& path)
-{
-
- DevDesc.Path = path;
-
- if (!openDevice())
- {
- LogText("OVR::OSX::HIDDevice - Failed to open HIDDevice: %s", path.ToCStr());
- return false;
- }
-
- // Setup notification for when a device is unplugged and plugged back in.
- if (!setupDevicePluggedInNotification())
- {
- LogText("OVR::OSX::HIDDevice - Failed to setup notification for when device plugged back in.");
- closeDevice(false);
- return false;
- }
-
- HIDManager->DevManager->pThread->AddTicksNotifier(this);
-
-
- LogText("OVR::OSX::HIDDevice - Opened '%s'\n"
- " Manufacturer:'%s' Product:'%s' Serial#:'%s'\n",
- DevDesc.Path.ToCStr(),
- DevDesc.Manufacturer.ToCStr(), DevDesc.Product.ToCStr(),
- DevDesc.SerialNumber.ToCStr());
-
- return true;
-}
-
-bool HIDDevice::initInfo()
-{
- // Device must have been successfully opened.
- OVR_ASSERT(Device);
-
-
- // Get report lengths.
- SInt32 bufferLength;
- bool getResult = HIDManager->getIntProperty(Device, CFSTR(kIOHIDMaxInputReportSizeKey), &bufferLength);
- OVR_ASSERT(getResult);
- InputReportBufferLength = (UInt16) bufferLength;
-
- getResult = HIDManager->getIntProperty(Device, CFSTR(kIOHIDMaxOutputReportSizeKey), &bufferLength);
- OVR_ASSERT(getResult);
- OutputReportBufferLength = (UInt16) bufferLength;
-
- getResult = HIDManager->getIntProperty(Device, CFSTR(kIOHIDMaxFeatureReportSizeKey), &bufferLength);
- OVR_ASSERT(getResult);
- FeatureReportBufferLength = (UInt16) bufferLength;
-
-
- if (ReadBufferSize < InputReportBufferLength)
- {
- OVR_ASSERT_LOG(false, ("Input report buffer length is bigger than read buffer."));
- return false;
- }
-
- // Get device desc.
- if (!HIDManager->getFullDesc(Device, &DevDesc))
- {
- OVR_ASSERT_LOG(false, ("Failed to get device desc while initializing device."));
- return false;
- }
-
- return true;
-}
-
-void HIDDevice::staticDeviceAddedCallback(void* pContext, io_iterator_t iterator)
-{
- HIDDevice* pDevice = (HIDDevice*) pContext;
- pDevice->deviceAddedCallback(iterator);
-}
-
-void HIDDevice::deviceAddedCallback(io_iterator_t iterator)
-{
-
- if (Device == NULL)
- {
- if (openDevice())
- {
- LogText("OVR::OSX::HIDDevice - Reopened device : %s", DevDesc.Path.ToCStr());
-
- Ptr<DeviceCreateDesc> existingHIDDev = HIDManager->DevManager->FindHIDDevice(DevDesc);
- if (existingHIDDev && existingHIDDev->pDevice)
- {
- HIDManager->DevManager->CallOnDeviceAdded(existingHIDDev);
- }
- }
- }
-
- // Reset callback.
- while (IOIteratorNext(iterator))
- ;
-}
-
-bool HIDDevice::openDevice()
-{
-
- // Have to iterate through devices again to generate paths.
- CFSetRef deviceSet = IOHIDManagerCopyDevices(HIDManager->HIDManager);
- CFIndex deviceCount = CFSetGetCount(deviceSet);
-
- // Allocate a block of memory and read the set into it.
- IOHIDDeviceRef* devices = (IOHIDDeviceRef*) OVR_ALLOC(sizeof(IOHIDDeviceRef) * deviceCount);
- CFSetGetValues(deviceSet, (const void **) devices);
-
-
- // Iterate over devices.
- IOHIDDeviceRef device = NULL;
-
- for (CFIndex deviceIndex = 0; deviceIndex < deviceCount; deviceIndex++)
- {
- IOHIDDeviceRef tmpDevice = devices[deviceIndex];
-
- if (!tmpDevice)
- {
- continue;
- }
-
- String path;
- if (!HIDManager->getPath(tmpDevice, &path))
- {
- continue;
- }
-
- if (path == DevDesc.Path)
- {
- device = tmpDevice;
- break;
- }
- }
-
-
- OVR_FREE(devices);
-
- if (!device)
- {
- CFRelease(deviceSet);
- return false;
- }
-
- // Attempt to open device.
- if (IOHIDDeviceOpen(device, kIOHIDOptionsTypeSeizeDevice)
- != kIOReturnSuccess)
- {
- CFRelease(deviceSet);
- return false;
- }
-
- // Retain the device before we release the set.
- CFRetain(device);
- CFRelease(deviceSet);
-
-
- Device = device;
-
-
- if (!initInfo())
- {
- IOHIDDeviceClose(Device, kIOHIDOptionsTypeSeizeDevice);
- CFRelease(Device);
- Device = NULL;
- return false;
- }
-
-
- // Setup the Run Loop and callbacks.
- IOHIDDeviceScheduleWithRunLoop(Device,
- HIDManager->getRunLoop(),
- kCFRunLoopDefaultMode);
-
- IOHIDDeviceRegisterInputReportCallback(Device,
- ReadBuffer,
- ReadBufferSize,
- staticHIDReportCallback,
- this);
-
- IOHIDDeviceRegisterRemovalCallback(Device,
- staticDeviceRemovedCallback,
- this);
-
- return true;
-}
-
-void HIDDevice::HIDShutdown()
-{
-
- HIDManager->DevManager->pThread->RemoveTicksNotifier(this);
-
- if (Device != NULL) // Device may already have been closed if unplugged.
- {
- closeDevice(false);
- }
-
- IOObjectRelease(RepluggedNotification);
- if (RepluggedNotificationPort)
- IONotificationPortDestroy(RepluggedNotificationPort);
-
- LogText("OVR::OSX::HIDDevice - HIDShutdown '%s'\n", DevDesc.Path.ToCStr());
-}
-
-bool HIDDevice::setupDevicePluggedInNotification()
-{
-
- // Setup notification when devices are plugged in.
- RepluggedNotificationPort = IONotificationPortCreate(kIOMasterPortDefault);
-
- CFRunLoopSourceRef notificationRunLoopSource =
- IONotificationPortGetRunLoopSource(RepluggedNotificationPort);
-
- CFRunLoopAddSource(HIDManager->getRunLoop(),
- notificationRunLoopSource,
- kCFRunLoopDefaultMode);
-
- CFMutableDictionaryRef matchingDict = IOServiceMatching(kIOUSBDeviceClassName);
-
- // Have to specify vendorId and productId. Doesn't seem to accept additional
- // things like serial number.
- SInt32 vendorId = DevDesc.VendorId;
- CFNumberRef numberRef = CFNumberCreate(kCFAllocatorDefault,
- kCFNumberSInt32Type,
- &vendorId);
- CFDictionarySetValue(matchingDict, CFSTR(kUSBVendorID), numberRef);
- CFRelease(numberRef);
-
- SInt32 deviceProductId = DevDesc.ProductId;
- numberRef = CFNumberCreate(kCFAllocatorDefault,
- kCFNumberSInt32Type,
- &deviceProductId);
- CFDictionarySetValue(matchingDict, CFSTR(kUSBProductID), numberRef);
- CFRelease(numberRef);
-
- kern_return_t result =
- IOServiceAddMatchingNotification(RepluggedNotificationPort,
- kIOMatchedNotification,
- matchingDict,
- staticDeviceAddedCallback,
- this,
- &RepluggedNotification);
-
- if (result != KERN_SUCCESS)
- {
- CFRelease(RepluggedNotificationPort);
- RepluggedNotificationPort = 0;
- return false;
- }
-
- // Iterate through to arm.
- while (IOIteratorNext(RepluggedNotification))
- {
- }
-
- return true;
-}
-
-void HIDDevice::closeDevice(bool wasUnplugged)
-{
- OVR_ASSERT(Device != NULL);
-
- if (!wasUnplugged)
- {
- // Clear the registered callbacks.
- IOHIDDeviceRegisterInputReportCallback(Device,
- ReadBuffer,
- InputReportBufferLength,
- NULL,
- this);
-
- IOHIDDeviceRegisterRemovalCallback(Device, NULL, this);
-
- IOHIDDeviceUnscheduleFromRunLoop(Device,
- HIDManager->getRunLoop(),
- kCFRunLoopDefaultMode);
- IOHIDDeviceClose(Device, kIOHIDOptionsTypeNone);
- }
-
- CFRelease(Device);
- Device = NULL;
-
- LogText("OVR::OSX::HIDDevice - HID Device Closed '%s'\n", DevDesc.Path.ToCStr());
-}
-
-void HIDDevice::staticHIDReportCallback(void* pContext,
- IOReturn result,
- void* pSender,
- IOHIDReportType reportType,
- uint32_t reportId,
- uint8_t* pReport,
- CFIndex reportLength)
-{
- HIDDevice* pDevice = (HIDDevice*) pContext;
- return pDevice->hidReportCallback(pReport, (UInt32)reportLength);
-}
-
-void HIDDevice::hidReportCallback(UByte* pData, UInt32 length)
-{
-
- // We got data.
- if (Handler)
- {
- Handler->OnInputReport(pData, length);
- }
-}
-
-void HIDDevice::staticDeviceRemovedCallback(void* pContext, IOReturn result, void* pSender)
-{
- HIDDevice* pDevice = (HIDDevice*) pContext;
- pDevice->deviceRemovedCallback();
-}
-
-void HIDDevice::deviceRemovedCallback()
-{
- Ptr<HIDDevice> _this(this); // prevent from release
-
- Ptr<DeviceCreateDesc> existingHIDDev = HIDManager->DevManager->FindHIDDevice(DevDesc);
- if (existingHIDDev && existingHIDDev->pDevice)
- {
- HIDManager->DevManager->CallOnDeviceRemoved(existingHIDDev);
- }
- closeDevice(true);
-}
-
-CFStringRef HIDDevice::generateRunLoopModeString(IOHIDDeviceRef device)
-{
- const UInt32 safeBuffSize = 256;
- char nameBuff[safeBuffSize];
- OVR_sprintf(nameBuff, safeBuffSize, "%016lX", device);
-
- return CFStringCreateWithCString(NULL, nameBuff, kCFStringEncodingASCII);
-}
-
-bool HIDDevice::SetFeatureReport(UByte* data, UInt32 length)
-{
-
- if (!Device)
- return false;
-
- UByte reportID = data[0];
-
- if (reportID == 0)
- {
- // Not using reports so remove from data packet.
- data++;
- length--;
- }
-
- IOReturn result = IOHIDDeviceSetReport( Device,
- kIOHIDReportTypeFeature,
- reportID,
- data,
- length);
-
- return (result == kIOReturnSuccess);
-}
-
-bool HIDDevice::GetFeatureReport(UByte* data, UInt32 length)
-{
- if (!Device)
- return false;
-
- CFIndex bufferLength = length;
-
- // Report id is in first byte of the buffer.
- IOReturn result = IOHIDDeviceGetReport(Device, kIOHIDReportTypeFeature, data[0], data, &bufferLength);
-
- return (result == kIOReturnSuccess);
-}
-
-UInt64 HIDDevice::OnTicks(UInt64 ticksMks)
-{
-
- if (Handler)
- {
- return Handler->OnTicks(ticksMks);
- }
-
- return DeviceManagerThread::Notifier::OnTicks(ticksMks);
-}
-
-HIDDeviceManager* HIDDeviceManager::CreateInternal(OSX::DeviceManager* devManager)
-{
-
- if (!System::IsInitialized())
- {
- // Use custom message, since Log is not yet installed.
- OVR_DEBUG_STATEMENT(Log::GetDefaultLog()->
- LogMessage(Log_Debug, "HIDDeviceManager::Create failed - OVR::System not initialized"); );
- return 0;
- }
-
- Ptr<OSX::HIDDeviceManager> manager = *new OSX::HIDDeviceManager(devManager);
-
- if (manager)
- {
- if (manager->Initialize())
- {
- manager->AddRef();
- }
- else
- {
- manager.Clear();
- }
- }
-
- return manager.GetPtr();
-}
-
-} // namespace OSX
-
-//-------------------------------------------------------------------------------------
-// ***** Creation
-
-// Creates a new HIDDeviceManager and initializes OVR.
-HIDDeviceManager* HIDDeviceManager::Create()
-{
- OVR_ASSERT_LOG(false, ("Standalone mode not implemented yet."));
-
- if (!System::IsInitialized())
- {
- // Use custom message, since Log is not yet installed.
- OVR_DEBUG_STATEMENT(Log::GetDefaultLog()->
- LogMessage(Log_Debug, "HIDDeviceManager::Create failed - OVR::System not initialized"); );
- return 0;
- }
-
- Ptr<OSX::HIDDeviceManager> manager = *new OSX::HIDDeviceManager(NULL);
-
- if (manager)
- {
- if (manager->Initialize())
- {
- manager->AddRef();
- }
- else
- {
- manager.Clear();
- }
- }
-
- return manager.GetPtr();
-}
-
-} // namespace OVR
+/************************************************************************************ +Filename : OVR_OSX_HIDDevice.cpp +Content : OSX HID device implementation. +Created : February 26, 2013 +Authors : Lee Cooper + +Copyright : Copyright 2013 Oculus VR, Inc. All Rights reserved. + +Use of this software is subject to the terms of the Oculus license +agreement provided at the time of installation or download, or which +otherwise accompanies this software in either electronic or hard copy form. + +*************************************************************************************/ + +#include "OVR_OSX_HIDDevice.h" + +#include <IOKit/usb/IOUSBLib.h> + +namespace OVR { namespace OSX { + +static const UInt32 MAX_QUEUED_INPUT_REPORTS = 5; + +//------------------------------------------------------------------------------------- +// **** OSX::DeviceManager + +HIDDeviceManager::HIDDeviceManager(DeviceManager* manager) + : DevManager(manager) +{ + HIDManager = NULL; +} + +HIDDeviceManager::~HIDDeviceManager() +{ +} + +CFRunLoopRef HIDDeviceManager::getRunLoop() +{ + if (DevManager != NULL) + { + return DevManager->pThread->GetRunLoop(); + } + + return CFRunLoopGetCurrent(); +} + +bool HIDDeviceManager::initializeManager() +{ + if (HIDManager != NULL) + { + return true; + } + + HIDManager = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone); + + if (!HIDManager) + { + return false; + } + + // Create a Matching Dictionary + CFMutableDictionaryRef matchDict = + CFDictionaryCreateMutable(kCFAllocatorDefault, + 2, + &kCFTypeDictionaryKeyCallBacks, + &kCFTypeDictionaryValueCallBacks); + + // Specify a device manufacturer in the Matching Dictionary + UInt32 vendorId = Oculus_VendorId; + CFNumberRef vendorIdRef = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &vendorId); + CFDictionarySetValue(matchDict, + CFSTR(kIOHIDVendorIDKey), + vendorIdRef); + // Register the Matching Dictionary to the HID Manager + IOHIDManagerSetDeviceMatching(HIDManager, matchDict); + CFRelease(vendorIdRef); + CFRelease(matchDict); + + // Register a callback for USB device detection with the HID Manager + IOHIDManagerRegisterDeviceMatchingCallback(HIDManager, &staticDeviceMatchingCallback, this); + + IOHIDManagerScheduleWithRunLoop(HIDManager, getRunLoop(), kCFRunLoopDefaultMode); + + return true; +} + +bool HIDDeviceManager::Initialize() +{ + return initializeManager(); +} + +void HIDDeviceManager::Shutdown() +{ + OVR_ASSERT_LOG(HIDManager, ("Should have called 'Initialize' before 'Shutdown'.")); + CFRelease(HIDManager); + + LogText("OVR::OSX::HIDDeviceManager - shutting down.\n"); +} + +bool HIDDeviceManager::getIntProperty(IOHIDDeviceRef device, CFStringRef propertyName, SInt32* pResult) +{ + + CFTypeRef ref = IOHIDDeviceGetProperty(device, propertyName); + + if (!ref) + { + return false; + } + + if (CFGetTypeID(ref) != CFNumberGetTypeID()) + { + return false; + } + + CFNumberGetValue((CFNumberRef) ref, kCFNumberSInt32Type, pResult); + + return true; +} + +bool HIDDeviceManager::initVendorProductVersion(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc) +{ + + if (!getVendorId(device, &(pDevDesc->VendorId))) + { + return false; + } + + if (!getProductId(device, &(pDevDesc->ProductId))) + { + return false; + } + + return true; +} + +bool HIDDeviceManager::initUsage(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc) +{ + + SInt32 result; + + if (!getIntProperty(device, CFSTR(kIOHIDPrimaryUsagePageKey), &result)) + { + return false; + } + + pDevDesc->UsagePage = result; + + + if (!getIntProperty(device, CFSTR(kIOHIDPrimaryUsageKey), &result)) + { + return false; + } + + pDevDesc->Usage = result; + + return true; +} + +bool HIDDeviceManager::initSerialNumber(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc) +{ + return getSerialNumberString(device, &(pDevDesc->SerialNumber)); +} + +bool HIDDeviceManager::initStrings(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc) +{ + + // Regardless of whether they fail we'll try and get the remaining. + getStringProperty(device, CFSTR(kIOHIDManufacturerKey), &(pDevDesc->Manufacturer)); + getStringProperty(device, CFSTR(kIOHIDProductKey), &(pDevDesc->Product)); + + return true; +} + +bool HIDDeviceManager::getStringProperty(IOHIDDeviceRef device, + CFStringRef propertyName, + String* pResult) +{ + + CFStringRef str = (CFStringRef) IOHIDDeviceGetProperty(device, propertyName); + + if (!str) + { + return false; + } + + CFIndex length = CFStringGetLength(str); + CFRange range = CFRangeMake(0, length); + + // Test the conversion first to get required buffer size. + CFIndex bufferLength; + CFIndex numberOfChars = CFStringGetBytes(str, + range, + kCFStringEncodingUTF8, + (char) '?', + FALSE, + NULL, + 0, + &bufferLength); + + if (numberOfChars == 0) + { + return false; + } + + // Now allocate buffer. + char* buffer = new char[bufferLength+1]; + + numberOfChars = CFStringGetBytes(str, + range, + kCFStringEncodingUTF8, + (char) '?', + FALSE, + (UInt8*) buffer, + bufferLength, + NULL); + OVR_ASSERT_LOG(numberOfChars != 0, ("CFStringGetBytes failed.")); + + buffer[bufferLength] = '\0'; + *pResult = String(buffer); + + return true; +} + +bool HIDDeviceManager::getVendorId(IOHIDDeviceRef device, UInt16* pResult) +{ + SInt32 result; + + if (!getIntProperty(device, CFSTR(kIOHIDVendorIDKey), &result)) + { + return false; + } + + *pResult = result; + + return true; +} + +bool HIDDeviceManager::getProductId(IOHIDDeviceRef device, UInt16* pResult) +{ + SInt32 result; + + if (!getIntProperty(device, CFSTR(kIOHIDProductIDKey), &result)) + { + return false; + } + + *pResult = result; + + return true; +} + +bool HIDDeviceManager::getLocationId(IOHIDDeviceRef device, SInt32* pResult) +{ + SInt32 result; + + if (!getIntProperty(device, CFSTR(kIOHIDLocationIDKey), &result)) + { + return false; + } + + *pResult = result; + + return true; +} + +bool HIDDeviceManager::getSerialNumberString(IOHIDDeviceRef device, String* pResult) +{ + + if (!getStringProperty(device, CFSTR(kIOHIDSerialNumberKey), pResult)) + { + return false; + } + + return true; +} + +bool HIDDeviceManager::getPath(IOHIDDeviceRef device, String* pPath) +{ + + String transport; + if (!getStringProperty(device, CFSTR(kIOHIDTransportKey), &transport)) + { + return false; + } + + UInt16 vendorId; + if (!getVendorId(device, &vendorId)) + { + return false; + } + + UInt16 productId; + if (!getProductId(device, &productId)) + { + return false; + } + + String serialNumber; + if (!getSerialNumberString(device, &serialNumber)) + { + return false; + } + + + StringBuffer buffer; + buffer.AppendFormat("%s:vid=%04hx:pid=%04hx:ser=%s", + transport.ToCStr(), + vendorId, + productId, + serialNumber.ToCStr()); + + *pPath = String(buffer); + + return true; +} + +bool HIDDeviceManager::Enumerate(HIDEnumerateVisitor* enumVisitor) +{ + if (!initializeManager()) + { + return false; + } + + + CFSetRef deviceSet = IOHIDManagerCopyDevices(HIDManager); + if (!deviceSet) + return false; + + CFIndex deviceCount = CFSetGetCount(deviceSet); + + // Allocate a block of memory and read the set into it. + IOHIDDeviceRef* devices = (IOHIDDeviceRef*) OVR_ALLOC(sizeof(IOHIDDeviceRef) * deviceCount); + CFSetGetValues(deviceSet, (const void **) devices); + + + // Iterate over devices. + for (CFIndex deviceIndex = 0; deviceIndex < deviceCount; deviceIndex++) + { + IOHIDDeviceRef hidDev = devices[deviceIndex]; + + if (!hidDev) + { + continue; + } + + HIDDeviceDesc devDesc; + + if (getPath(hidDev, &(devDesc.Path)) && + initVendorProductVersion(hidDev, &devDesc) && + enumVisitor->MatchVendorProduct(devDesc.VendorId, devDesc.ProductId) && + initUsage(hidDev, &devDesc)) + { + initStrings(hidDev, &devDesc); + initSerialNumber(hidDev, &devDesc); + + // Look for the device to check if it is already opened. + Ptr<DeviceCreateDesc> existingDevice = DevManager->FindHIDDevice(devDesc); + // if device exists and it is opened then most likely the CreateHIDFile + // will fail; therefore, we just set Enumerated to 'true' and continue. + if (existingDevice && existingDevice->pDevice) + { + existingDevice->Enumerated = true; + continue; + } + + // Construct minimal device that the visitor callback can get feature reports from. + OSX::HIDDevice device(this, hidDev); + + enumVisitor->Visit(device, devDesc); + } + } + + OVR_FREE(devices); + CFRelease(deviceSet); + + return true; +} + +OVR::HIDDevice* HIDDeviceManager::Open(const String& path) +{ + + Ptr<OSX::HIDDevice> device = *new OSX::HIDDevice(this); + + if (!device->HIDInitialize(path)) + { + return NULL; + } + + device->AddRef(); + + return device; +} + +bool HIDDeviceManager::getFullDesc(IOHIDDeviceRef device, HIDDeviceDesc* desc) +{ + + if (!initVendorProductVersion(device, desc)) + { + return false; + } + + if (!initUsage(device, desc)) + { + return false; + } + + if (!initSerialNumber(device, desc)) + { + return false; + } + + initStrings(device, desc); + + return true; +} + +// New USB device specified in the matching dictionary has been added (callback function) +void HIDDeviceManager::staticDeviceMatchingCallback(void *inContext, + IOReturn inResult, + void *inSender, + IOHIDDeviceRef inIOHIDDeviceRef) +{ + HIDDeviceManager* hidMgr = static_cast<HIDDeviceManager*>(inContext); + HIDDeviceDesc hidDevDesc; + hidMgr->getPath(inIOHIDDeviceRef, &hidDevDesc.Path); + hidMgr->getFullDesc(inIOHIDDeviceRef, &hidDevDesc); + + hidMgr->DevManager->DetectHIDDevice(hidDevDesc); +} + +//------------------------------------------------------------------------------------- +// **** OSX::HIDDevice + +HIDDevice::HIDDevice(HIDDeviceManager* manager) + : HIDManager(manager), InMinimalMode(false) +{ + Device = NULL; + RepluggedNotificationPort = 0; +} + +// This is a minimal constructor used during enumeration for us to pass +// a HIDDevice to the visit function (so that it can query feature reports). +HIDDevice::HIDDevice(HIDDeviceManager* manager, IOHIDDeviceRef device) +: HIDManager(manager), Device(device), InMinimalMode(true) +{ + RepluggedNotificationPort = 0; +} + +HIDDevice::~HIDDevice() +{ + if (!InMinimalMode) + { + HIDShutdown(); + } +} + +bool HIDDevice::HIDInitialize(const String& path) +{ + + DevDesc.Path = path; + + if (!openDevice()) + { + LogText("OVR::OSX::HIDDevice - Failed to open HIDDevice: %s", path.ToCStr()); + return false; + } + + // Setup notification for when a device is unplugged and plugged back in. + if (!setupDevicePluggedInNotification()) + { + LogText("OVR::OSX::HIDDevice - Failed to setup notification for when device plugged back in."); + closeDevice(false); + return false; + } + + HIDManager->DevManager->pThread->AddTicksNotifier(this); + + + LogText("OVR::OSX::HIDDevice - Opened '%s'\n" + " Manufacturer:'%s' Product:'%s' Serial#:'%s'\n", + DevDesc.Path.ToCStr(), + DevDesc.Manufacturer.ToCStr(), DevDesc.Product.ToCStr(), + DevDesc.SerialNumber.ToCStr()); + + return true; +} + +bool HIDDevice::initInfo() +{ + // Device must have been successfully opened. + OVR_ASSERT(Device); + + + // Get report lengths. + SInt32 bufferLength; + bool getResult = HIDManager->getIntProperty(Device, CFSTR(kIOHIDMaxInputReportSizeKey), &bufferLength); + OVR_ASSERT(getResult); + InputReportBufferLength = (UInt16) bufferLength; + + getResult = HIDManager->getIntProperty(Device, CFSTR(kIOHIDMaxOutputReportSizeKey), &bufferLength); + OVR_ASSERT(getResult); + OutputReportBufferLength = (UInt16) bufferLength; + + getResult = HIDManager->getIntProperty(Device, CFSTR(kIOHIDMaxFeatureReportSizeKey), &bufferLength); + OVR_ASSERT(getResult); + FeatureReportBufferLength = (UInt16) bufferLength; + + + if (ReadBufferSize < InputReportBufferLength) + { + OVR_ASSERT_LOG(false, ("Input report buffer length is bigger than read buffer.")); + return false; + } + + // Get device desc. + if (!HIDManager->getFullDesc(Device, &DevDesc)) + { + OVR_ASSERT_LOG(false, ("Failed to get device desc while initializing device.")); + return false; + } + + return true; +} + +void HIDDevice::staticDeviceAddedCallback(void* pContext, io_iterator_t iterator) +{ + HIDDevice* pDevice = (HIDDevice*) pContext; + pDevice->deviceAddedCallback(iterator); +} + +void HIDDevice::deviceAddedCallback(io_iterator_t iterator) +{ + + if (Device == NULL) + { + if (openDevice()) + { + LogText("OVR::OSX::HIDDevice - Reopened device : %s", DevDesc.Path.ToCStr()); + + Ptr<DeviceCreateDesc> existingHIDDev = HIDManager->DevManager->FindHIDDevice(DevDesc); + if (existingHIDDev && existingHIDDev->pDevice) + { + HIDManager->DevManager->CallOnDeviceAdded(existingHIDDev); + } + } + } + + // Reset callback. + while (IOIteratorNext(iterator)) + ; +} + +bool HIDDevice::openDevice() +{ + + // Have to iterate through devices again to generate paths. + CFSetRef deviceSet = IOHIDManagerCopyDevices(HIDManager->HIDManager); + CFIndex deviceCount = CFSetGetCount(deviceSet); + + // Allocate a block of memory and read the set into it. + IOHIDDeviceRef* devices = (IOHIDDeviceRef*) OVR_ALLOC(sizeof(IOHIDDeviceRef) * deviceCount); + CFSetGetValues(deviceSet, (const void **) devices); + + + // Iterate over devices. + IOHIDDeviceRef device = NULL; + + for (CFIndex deviceIndex = 0; deviceIndex < deviceCount; deviceIndex++) + { + IOHIDDeviceRef tmpDevice = devices[deviceIndex]; + + if (!tmpDevice) + { + continue; + } + + String path; + if (!HIDManager->getPath(tmpDevice, &path)) + { + continue; + } + + if (path == DevDesc.Path) + { + device = tmpDevice; + break; + } + } + + + OVR_FREE(devices); + + if (!device) + { + CFRelease(deviceSet); + return false; + } + + // Attempt to open device. + if (IOHIDDeviceOpen(device, kIOHIDOptionsTypeSeizeDevice) + != kIOReturnSuccess) + { + CFRelease(deviceSet); + return false; + } + + // Retain the device before we release the set. + CFRetain(device); + CFRelease(deviceSet); + + + Device = device; + + + if (!initInfo()) + { + IOHIDDeviceClose(Device, kIOHIDOptionsTypeSeizeDevice); + CFRelease(Device); + Device = NULL; + return false; + } + + + // Setup the Run Loop and callbacks. + IOHIDDeviceScheduleWithRunLoop(Device, + HIDManager->getRunLoop(), + kCFRunLoopDefaultMode); + + IOHIDDeviceRegisterInputReportCallback(Device, + ReadBuffer, + ReadBufferSize, + staticHIDReportCallback, + this); + + IOHIDDeviceRegisterRemovalCallback(Device, + staticDeviceRemovedCallback, + this); + + return true; +} + +void HIDDevice::HIDShutdown() +{ + + HIDManager->DevManager->pThread->RemoveTicksNotifier(this); + + if (Device != NULL) // Device may already have been closed if unplugged. + { + closeDevice(false); + } + + IOObjectRelease(RepluggedNotification); + if (RepluggedNotificationPort) + IONotificationPortDestroy(RepluggedNotificationPort); + + LogText("OVR::OSX::HIDDevice - HIDShutdown '%s'\n", DevDesc.Path.ToCStr()); +} + +bool HIDDevice::setupDevicePluggedInNotification() +{ + + // Setup notification when devices are plugged in. + RepluggedNotificationPort = IONotificationPortCreate(kIOMasterPortDefault); + + CFRunLoopSourceRef notificationRunLoopSource = + IONotificationPortGetRunLoopSource(RepluggedNotificationPort); + + CFRunLoopAddSource(HIDManager->getRunLoop(), + notificationRunLoopSource, + kCFRunLoopDefaultMode); + + CFMutableDictionaryRef matchingDict = IOServiceMatching(kIOUSBDeviceClassName); + + // Have to specify vendorId and productId. Doesn't seem to accept additional + // things like serial number. + SInt32 vendorId = DevDesc.VendorId; + CFNumberRef numberRef = CFNumberCreate(kCFAllocatorDefault, + kCFNumberSInt32Type, + &vendorId); + CFDictionarySetValue(matchingDict, CFSTR(kUSBVendorID), numberRef); + CFRelease(numberRef); + + SInt32 deviceProductId = DevDesc.ProductId; + numberRef = CFNumberCreate(kCFAllocatorDefault, + kCFNumberSInt32Type, + &deviceProductId); + CFDictionarySetValue(matchingDict, CFSTR(kUSBProductID), numberRef); + CFRelease(numberRef); + + kern_return_t result = + IOServiceAddMatchingNotification(RepluggedNotificationPort, + kIOMatchedNotification, + matchingDict, + staticDeviceAddedCallback, + this, + &RepluggedNotification); + + if (result != KERN_SUCCESS) + { + CFRelease(RepluggedNotificationPort); + RepluggedNotificationPort = 0; + return false; + } + + // Iterate through to arm. + while (IOIteratorNext(RepluggedNotification)) + { + } + + return true; +} + +void HIDDevice::closeDevice(bool wasUnplugged) +{ + OVR_ASSERT(Device != NULL); + + if (!wasUnplugged) + { + // Clear the registered callbacks. + IOHIDDeviceRegisterInputReportCallback(Device, + ReadBuffer, + InputReportBufferLength, + NULL, + this); + + IOHIDDeviceRegisterRemovalCallback(Device, NULL, this); + + IOHIDDeviceUnscheduleFromRunLoop(Device, + HIDManager->getRunLoop(), + kCFRunLoopDefaultMode); + IOHIDDeviceClose(Device, kIOHIDOptionsTypeNone); + } + + CFRelease(Device); + Device = NULL; + + LogText("OVR::OSX::HIDDevice - HID Device Closed '%s'\n", DevDesc.Path.ToCStr()); +} + +void HIDDevice::staticHIDReportCallback(void* pContext, + IOReturn result, + void* pSender, + IOHIDReportType reportType, + uint32_t reportId, + uint8_t* pReport, + CFIndex reportLength) +{ + HIDDevice* pDevice = (HIDDevice*) pContext; + return pDevice->hidReportCallback(pReport, (UInt32)reportLength); +} + +void HIDDevice::hidReportCallback(UByte* pData, UInt32 length) +{ + + // We got data. + if (Handler) + { + Handler->OnInputReport(pData, length); + } +} + +void HIDDevice::staticDeviceRemovedCallback(void* pContext, IOReturn result, void* pSender) +{ + HIDDevice* pDevice = (HIDDevice*) pContext; + pDevice->deviceRemovedCallback(); +} + +void HIDDevice::deviceRemovedCallback() +{ + Ptr<HIDDevice> _this(this); // prevent from release + + Ptr<DeviceCreateDesc> existingHIDDev = HIDManager->DevManager->FindHIDDevice(DevDesc); + if (existingHIDDev && existingHIDDev->pDevice) + { + HIDManager->DevManager->CallOnDeviceRemoved(existingHIDDev); + } + closeDevice(true); +} + +CFStringRef HIDDevice::generateRunLoopModeString(IOHIDDeviceRef device) +{ + const UInt32 safeBuffSize = 256; + char nameBuff[safeBuffSize]; + OVR_sprintf(nameBuff, safeBuffSize, "%016lX", device); + + return CFStringCreateWithCString(NULL, nameBuff, kCFStringEncodingASCII); +} + +bool HIDDevice::SetFeatureReport(UByte* data, UInt32 length) +{ + + if (!Device) + return false; + + UByte reportID = data[0]; + + if (reportID == 0) + { + // Not using reports so remove from data packet. + data++; + length--; + } + + IOReturn result = IOHIDDeviceSetReport( Device, + kIOHIDReportTypeFeature, + reportID, + data, + length); + + return (result == kIOReturnSuccess); +} + +bool HIDDevice::GetFeatureReport(UByte* data, UInt32 length) +{ + if (!Device) + return false; + + CFIndex bufferLength = length; + + // Report id is in first byte of the buffer. + IOReturn result = IOHIDDeviceGetReport(Device, kIOHIDReportTypeFeature, data[0], data, &bufferLength); + + return (result == kIOReturnSuccess); +} + +UInt64 HIDDevice::OnTicks(UInt64 ticksMks) +{ + + if (Handler) + { + return Handler->OnTicks(ticksMks); + } + + return DeviceManagerThread::Notifier::OnTicks(ticksMks); +} + +HIDDeviceManager* HIDDeviceManager::CreateInternal(OSX::DeviceManager* devManager) +{ + + if (!System::IsInitialized()) + { + // Use custom message, since Log is not yet installed. + OVR_DEBUG_STATEMENT(Log::GetDefaultLog()-> + LogMessage(Log_Debug, "HIDDeviceManager::Create failed - OVR::System not initialized"); ); + return 0; + } + + Ptr<OSX::HIDDeviceManager> manager = *new OSX::HIDDeviceManager(devManager); + + if (manager) + { + if (manager->Initialize()) + { + manager->AddRef(); + } + else + { + manager.Clear(); + } + } + + return manager.GetPtr(); +} + +} // namespace OSX + +//------------------------------------------------------------------------------------- +// ***** Creation + +// Creates a new HIDDeviceManager and initializes OVR. +HIDDeviceManager* HIDDeviceManager::Create() +{ + OVR_ASSERT_LOG(false, ("Standalone mode not implemented yet.")); + + if (!System::IsInitialized()) + { + // Use custom message, since Log is not yet installed. + OVR_DEBUG_STATEMENT(Log::GetDefaultLog()-> + LogMessage(Log_Debug, "HIDDeviceManager::Create failed - OVR::System not initialized"); ); + return 0; + } + + Ptr<OSX::HIDDeviceManager> manager = *new OSX::HIDDeviceManager(NULL); + + if (manager) + { + if (manager->Initialize()) + { + manager->AddRef(); + } + else + { + manager.Clear(); + } + } + + return manager.GetPtr(); +} + +} // namespace OVR |