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/************************************************************************************
Filename : OVR_OSX_HIDDevice.h
Content : OSX HID device implementation.
Created : February 26, 2013
Authors : Lee Cooper
Copyright : Copyright 2013 Oculus VR, Inc. All Rights reserved.
Licensed under the Oculus VR SDK License Version 2.0 (the "License");
you may not use the Oculus VR SDK except in compliance with the License,
which is provided at the time of installation or download, or which
otherwise accompanies this software in either electronic or hard copy form.
You may obtain a copy of the License at
http://www.oculusvr.com/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, the Oculus VR SDK
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*************************************************************************************/
#ifndef OVR_OSX_HIDDevice_h
#define OVR_OSX_HIDDevice_h
#include "OVR_HIDDevice.h"
#include "OVR_OSX_DeviceManager.h"
#include <IOKit/IOKitLib.h>
namespace OVR { namespace OSX {
class HIDDeviceManager;
//-------------------------------------------------------------------------------------
// ***** OSX HIDDevice
class HIDDevice : public OVR::HIDDevice, public DeviceManagerThread::Notifier
{
private:
friend class HIDDeviceManager;
public:
HIDDevice(HIDDeviceManager* manager);
// 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(HIDDeviceManager* manager, IOHIDDeviceRef device);
virtual ~HIDDevice();
bool HIDInitialize(const String& path);
void HIDShutdown();
virtual bool SetFeatureReport(UByte* data, UInt32 length);
virtual bool GetFeatureReport(UByte* data, UInt32 length);
bool Write(UByte* data, UInt32 length);
bool Read(UByte* pData, UInt32 length, UInt32 timeoutMilliS);
bool ReadBlocking(UByte* pData, UInt32 length);
// DeviceManagerThread::Notifier
UInt64 OnTicks(UInt64 ticksMks);
private:
bool initInfo();
bool openDevice();
void closeDevice(bool wasUnplugged);
bool setupDevicePluggedInNotification();
CFStringRef generateRunLoopModeString(IOHIDDeviceRef device);
static void staticHIDReportCallback(void* pContext,
IOReturn result,
void* pSender,
IOHIDReportType reportType,
uint32_t reportId,
uint8_t* pReport,
CFIndex reportLength);
void hidReportCallback(UByte* pData, UInt32 length);
static void staticDeviceRemovedCallback(void* pContext,
IOReturn result,
void* pSender);
void deviceRemovedCallback();
static void staticDeviceAddedCallback(void* pContext,
io_iterator_t iterator);
void deviceAddedCallback(io_iterator_t iterator);
bool InMinimalMode;
HIDDeviceManager* HIDManager;
IOHIDDeviceRef Device;
HIDDeviceDesc DevDesc;
enum { ReadBufferSize = 96 };
UByte ReadBuffer[ReadBufferSize];
UInt16 InputReportBufferLength;
UInt16 OutputReportBufferLength;
UInt16 FeatureReportBufferLength;
IONotificationPortRef RepluggedNotificationPort;
io_iterator_t RepluggedNotification;
};
//-------------------------------------------------------------------------------------
// ***** OSX HIDDeviceManager
class HIDDeviceManager : public OVR::HIDDeviceManager
{
friend class HIDDevice;
public:
HIDDeviceManager(OSX::DeviceManager* Manager);
virtual ~HIDDeviceManager();
virtual bool Initialize();
virtual void Shutdown();
virtual bool Enumerate(HIDEnumerateVisitor* enumVisitor);
virtual OVR::HIDDevice* Open(const String& path);
static HIDDeviceManager* CreateInternal(DeviceManager* manager);
private:
CFRunLoopRef getRunLoop();
bool initializeManager();
bool initVendorProductVersion(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc);
bool initUsage(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc);
bool initStrings(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc);
bool initSerialNumber(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc);
bool getVendorId(IOHIDDeviceRef device, UInt16* pResult);
bool getProductId(IOHIDDeviceRef device, UInt16* pResult);
bool getLocationId(IOHIDDeviceRef device, SInt32* pResult);
bool getSerialNumberString(IOHIDDeviceRef device, String* pResult);
bool getPath(IOHIDDeviceRef device, String* pPath);
bool getIntProperty(IOHIDDeviceRef device, CFStringRef key, int32_t* pResult);
bool getStringProperty(IOHIDDeviceRef device, CFStringRef propertyName, String* pResult);
bool getFullDesc(IOHIDDeviceRef device, HIDDeviceDesc* desc);
static void staticDeviceMatchingCallback(void *inContext,
IOReturn inResult,
void *inSender,
IOHIDDeviceRef inIOHIDDeviceRef);
DeviceManager* DevManager;
IOHIDManagerRef HIDManager;
};
}} // namespace OVR::OSX
#endif // OVR_OSX_HIDDevice_h
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