bc4cb0bc79
Also added some support for sending files to the device that hasn't been debugged yet. Add locking to MtpDevice to prevent it from attempting multiple transactions simultaneously. Change-Id: I2b995ba0af086cc6920bd6b8c869f540ad78560a Signed-off-by: Mike Lockwood <lockwood@android.com>
106 lines
3.5 KiB
C++
106 lines
3.5 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _MTP_DEVICE_H
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#define _MTP_DEVICE_H
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#include "MtpRequestPacket.h"
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#include "MtpDataPacket.h"
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#include "MtpResponsePacket.h"
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#include "MtpTypes.h"
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#include <utils/threads.h>
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struct usb_device;
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namespace android {
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class MtpDeviceInfo;
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class MtpObjectInfo;
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class MtpStorageInfo;
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class MtpDevice {
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private:
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struct usb_device* mDevice;
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int mInterface;
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struct usb_endpoint* mEndpointIn;
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struct usb_endpoint* mEndpointOut;
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struct usb_endpoint* mEndpointIntr;
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MtpDeviceInfo* mDeviceInfo;
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MtpPropertyList mDeviceProperties;
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// a unique ID for the device
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int mID;
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// current session ID
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MtpSessionID mSessionID;
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// current transaction ID
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MtpTransactionID mTransactionID;
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MtpRequestPacket mRequest;
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MtpDataPacket mData;
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MtpResponsePacket mResponse;
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// to ensure only one MTP transaction at a time
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Mutex mMutex;
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public:
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MtpDevice(struct usb_device* device, int interface,
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struct usb_endpoint *ep_in, struct usb_endpoint *ep_out,
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struct usb_endpoint *ep_intr);
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virtual ~MtpDevice();
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inline int getID() const { return mID; }
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void initialize();
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void close();
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const char* getDeviceName();
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bool openSession();
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bool closeSession();
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MtpDeviceInfo* getDeviceInfo();
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MtpStorageIDList* getStorageIDs();
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MtpStorageInfo* getStorageInfo(MtpStorageID storageID);
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MtpObjectHandleList* getObjectHandles(MtpStorageID storageID, MtpObjectFormat format, MtpObjectHandle parent);
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MtpObjectInfo* getObjectInfo(MtpObjectHandle handle);
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void* getThumbnail(MtpObjectHandle handle, int& outLength);
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MtpObjectHandle sendObjectInfo(MtpObjectInfo* info);
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bool sendObject(MtpObjectInfo* info, int srcFD);
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bool deleteObject(MtpObjectHandle handle);
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MtpObjectHandle getParent(MtpObjectHandle handle);
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MtpObjectHandle getStorageID(MtpObjectHandle handle);
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MtpProperty* getDevicePropDesc(MtpDeviceProperty code);
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// returns the file descriptor for a pipe to read the object's data
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int readObject(MtpObjectHandle handle, int objectSize);
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private:
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friend class ReadObjectThread;
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bool sendRequest(MtpOperationCode operation);
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bool sendData();
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bool readData();
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bool writeDataHeader(MtpOperationCode operation, int dataLength);
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MtpResponseCode readResponse();
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};
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}; // namespace android
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#endif // _MTP_DEVICE_H
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