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authorSven Gothel <[email protected]>2014-06-19 17:03:28 +0200
committerSven Gothel <[email protected]>2014-06-19 17:03:28 +0200
commitd9a584844a60542519d813b5dc1a62428f14a0ae (patch)
tree942c10a5ebcd0aab65e9d6facb59778468f39d3b /LibOVR/Src/OVR_Linux_HIDDevice.h
Add OculusSDK 0.3.2 Linux Source Code w/o Samples, docs or binaries (libs or tools)
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+/************************************************************************************
+Filename : OVR_Linux_HIDDevice.h
+Content : Linux HID device implementation.
+Created : June 13, 2013
+Authors : Brant Lewis
+
+Copyright : Copyright 2014 Oculus VR, Inc. All Rights reserved.
+
+Licensed under the Oculus VR Rift SDK License Version 3.1 (the "License");
+you may not use the Oculus VR Rift 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-3.1
+
+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_LINUX_HIDDevice_h
+#define OVR_LINUX_HIDDevice_h
+
+#include "OVR_HIDDevice.h"
+#include "OVR_Linux_DeviceManager.h"
+#include <libudev.h>
+
+namespace OVR { namespace Linux {
+
+class HIDDeviceManager;
+
+//-------------------------------------------------------------------------------------
+// ***** Linux 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, int device_handle);
+
+ virtual ~HIDDevice();
+
+ bool HIDInitialize(const String& path);
+ void HIDShutdown();
+
+ virtual bool SetFeatureReport(UByte* data, UInt32 length);
+ virtual bool GetFeatureReport(UByte* data, UInt32 length);
+
+ // DeviceManagerThread::Notifier
+ void OnEvent(int i, int fd);
+ double OnTicks(double tickSeconds);
+
+ bool OnDeviceNotification(MessageType messageType,
+ HIDDeviceDesc* device_info,
+ bool* error);
+
+private:
+ bool initInfo();
+ bool openDevice(const char* dev_path);
+ void closeDevice(bool wasUnplugged);
+ void closeDeviceOnIOError();
+ bool setupDevicePluggedInNotification();
+
+ bool InMinimalMode;
+ HIDDeviceManager* HIDManager;
+ int DeviceHandle; // file handle to the device
+ HIDDeviceDesc DevDesc;
+
+ enum { ReadBufferSize = 96 };
+ UByte ReadBuffer[ReadBufferSize];
+
+ UInt16 InputReportBufferLength;
+ UInt16 OutputReportBufferLength;
+ UInt16 FeatureReportBufferLength;
+};
+
+
+//-------------------------------------------------------------------------------------
+// ***** Linux HIDDeviceManager
+
+class HIDDeviceManager : public OVR::HIDDeviceManager, public DeviceManagerThread::Notifier
+{
+ friend class HIDDevice;
+
+public:
+ HIDDeviceManager(Linux::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);
+
+ void OnEvent(int i, int fd);
+
+private:
+ bool initializeManager();
+ bool initVendorProductVersion(udev_device* device, HIDDeviceDesc* pDevDesc);
+ bool getPath(udev_device* device, String* pPath);
+ bool getIntProperty(udev_device* device, const char* key, int32_t* pResult);
+ bool getStringProperty(udev_device* device,
+ const char* propertyName,
+ OVR::String* pResult);
+ bool getFullDesc(udev_device* device, HIDDeviceDesc* desc);
+ bool GetDescriptorFromPath(const char* dev_path, HIDDeviceDesc* desc);
+
+ bool AddNotificationDevice(HIDDevice* device);
+ bool RemoveNotificationDevice(HIDDevice* device);
+
+ DeviceManager* DevManager;
+
+ udev* UdevInstance; // a handle to the udev library instance
+ udev_monitor* HIDMonitor;
+ int HIDMonHandle; // the udev_monitor file handle
+
+ Array<HIDDevice*> NotificationDevices;
+};
+
+}} // namespace OVR::Linux
+
+#endif // OVR_Linux_HIDDevice_h