OVR_OSX_HIDDevice.h
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00001 /************************************************************************************
00002 Filename    :   OVR_OSX_HIDDevice.h
00003 Content     :   OSX HID device implementation.
00004 Created     :   February 26, 2013
00005 Authors     :   Lee Cooper
00006 
00007 Copyright   :   Copyright 2013 Oculus VR, Inc. All Rights reserved.
00008 
00009 Use of this software is subject to the terms of the Oculus license
00010 agreement provided at the time of installation or download, or which
00011 otherwise accompanies this software in either electronic or hard copy form.
00012 
00013 *************************************************************************************/
00014 
00015 #ifndef OVR_OSX_HIDDevice_h
00016 #define OVR_OSX_HIDDevice_h
00017 
00018 #include "OVR_HIDDevice.h"
00019 
00020 #include "OVR_OSX_DeviceManager.h"
00021 
00022 #include <IOKit/IOKitLib.h>
00023 
00024 namespace OVR { namespace OSX {
00025 
00026 class HIDDeviceManager;
00027 
00028 //-------------------------------------------------------------------------------------
00029 // ***** OSX HIDDevice
00030 
00031 class HIDDevice : public OVR::HIDDevice, public DeviceManagerThread::Notifier
00032 {
00033 private:
00034     friend class HIDDeviceManager;
00035 
00036 public:
00037     HIDDevice(HIDDeviceManager* manager);
00038 
00039     // This is a minimal constructor used during enumeration for us to pass
00040     // a HIDDevice to the visit function (so that it can query feature reports).
00041     HIDDevice(HIDDeviceManager* manager, IOHIDDeviceRef device);
00042     
00043     virtual ~HIDDevice();
00044 
00045     bool HIDInitialize(const String& path);
00046     void HIDShutdown();
00047     
00048     virtual bool SetFeatureReport(UByte* data, UInt32 length);
00049         virtual bool GetFeatureReport(UByte* data, UInt32 length);
00050 
00051     bool Write(UByte* data, UInt32 length);
00052 
00053     bool Read(UByte* pData, UInt32 length, UInt32 timeoutMilliS);
00054     bool ReadBlocking(UByte* pData, UInt32 length);
00055 
00056 
00057     // DeviceManagerThread::Notifier
00058     UInt64 OnTicks(UInt64 ticksMks);
00059     
00060 private:
00061     bool initInfo();
00062     bool openDevice();
00063     void closeDevice(bool wasUnplugged);
00064     bool setupDevicePluggedInNotification();
00065     CFStringRef generateRunLoopModeString(IOHIDDeviceRef device);
00066     
00067     static void staticHIDReportCallback(void* pContext,
00068                                         IOReturn result,
00069                                         void* pSender,
00070                                         IOHIDReportType reportType,
00071                                         uint32_t reportId,
00072                                         uint8_t* pReport,
00073                                         CFIndex reportLength);
00074     void hidReportCallback(UByte* pData, UInt32 length);
00075 
00076     static void staticDeviceRemovedCallback(void* pContext,
00077                                             IOReturn result,
00078                                             void* pSender);
00079     void deviceRemovedCallback();
00080     
00081     static void staticDeviceAddedCallback(void* pContext,
00082                                           io_iterator_t iterator);
00083     void deviceAddedCallback(io_iterator_t iterator);
00084     
00085     bool                    InMinimalMode;
00086     HIDDeviceManager*       HIDManager;
00087     IOHIDDeviceRef          Device;
00088     HIDDeviceDesc           DevDesc;
00089     
00090     enum { ReadBufferSize = 96 };
00091     UByte                   ReadBuffer[ReadBufferSize];
00092 
00093     UInt16                  InputReportBufferLength;
00094     UInt16                  OutputReportBufferLength;
00095     UInt16                  FeatureReportBufferLength;
00096     
00097     IONotificationPortRef   RepluggedNotificationPort;
00098     io_iterator_t           RepluggedNotification;
00099 };
00100 
00101 
00102 //-------------------------------------------------------------------------------------
00103 // ***** OSX HIDDeviceManager
00104 
00105 class HIDDeviceManager : public OVR::HIDDeviceManager
00106 {
00107         friend class HIDDevice;
00108 
00109 public:
00110     HIDDeviceManager(OSX::DeviceManager* Manager);
00111     virtual ~HIDDeviceManager();
00112 
00113     virtual bool Initialize();
00114     virtual void Shutdown();
00115 
00116     virtual bool Enumerate(HIDEnumerateVisitor* enumVisitor);
00117     virtual OVR::HIDDevice* Open(const String& path);
00118 
00119     static HIDDeviceManager* CreateInternal(DeviceManager* manager);
00120     
00121 private:
00122     CFRunLoopRef getRunLoop();
00123     bool initializeManager();
00124     bool initVendorProductVersion(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc);
00125     bool initUsage(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc);
00126     bool initStrings(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc);
00127     bool initSerialNumber(IOHIDDeviceRef device, HIDDeviceDesc* pDevDesc);
00128     bool getVendorId(IOHIDDeviceRef device, UInt16* pResult);
00129     bool getProductId(IOHIDDeviceRef device, UInt16* pResult);
00130     bool getLocationId(IOHIDDeviceRef device, SInt32* pResult);
00131     bool getSerialNumberString(IOHIDDeviceRef device, String* pResult);
00132     bool getPath(IOHIDDeviceRef device, String* pPath);
00133     bool getIntProperty(IOHIDDeviceRef device, CFStringRef key, int32_t* pResult);
00134     bool getStringProperty(IOHIDDeviceRef device, CFStringRef propertyName, String* pResult);
00135     bool getFullDesc(IOHIDDeviceRef device, HIDDeviceDesc* desc);
00136     
00137     static void staticDeviceMatchingCallback(void *inContext,
00138                                              IOReturn inResult,
00139                                              void *inSender,
00140                                              IOHIDDeviceRef inIOHIDDeviceRef);
00141     
00142     DeviceManager* DevManager;
00143 
00144     IOHIDManagerRef HIDManager;
00145 };
00146 
00147 }} // namespace OVR::OSX
00148 
00149 #endif // OVR_OSX_HIDDevice_h


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autogenerated on Fri Aug 28 2015 11:53:11