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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* 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 _MTP_DEVICE_H
#define _MTP_DEVICE_H
#include "MtpRequestPacket.h"
#include "MtpDataPacket.h"
#include "MtpResponsePacket.h"
#include "MtpTypes.h"
#include <utils/threads.h>
struct usb_device;
struct usb_request;
struct usb_endpoint_descriptor;
namespace android {
class MtpDeviceInfo;
class MtpObjectInfo;
class MtpStorageInfo;
class MtpDevice {
private:
struct usb_device* mDevice;
int mInterface;
struct usb_request* mRequestIn1;
struct usb_request* mRequestIn2;
struct usb_request* mRequestOut;
struct usb_request* mRequestIntr;
MtpDeviceInfo* mDeviceInfo;
MtpPropertyList mDeviceProperties;
// current session ID
MtpSessionID mSessionID;
// current transaction ID
MtpTransactionID mTransactionID;
MtpRequestPacket mRequest;
MtpDataPacket mData;
MtpResponsePacket mResponse;
// set to true if we received a response packet instead of a data packet
bool mReceivedResponse;
// to ensure only one MTP transaction at a time
Mutex mMutex;
public:
MtpDevice(struct usb_device* device, int interface,
const struct usb_endpoint_descriptor *ep_in,
const struct usb_endpoint_descriptor *ep_out,
const struct usb_endpoint_descriptor *ep_intr);
static MtpDevice* open(const char* deviceName, int fd);
virtual ~MtpDevice();
void initialize();
void close();
void print();
const char* getDeviceName();
bool openSession();
bool closeSession();
MtpDeviceInfo* getDeviceInfo();
MtpStorageIDList* getStorageIDs();
MtpStorageInfo* getStorageInfo(MtpStorageID storageID);
MtpObjectHandleList* getObjectHandles(MtpStorageID storageID, MtpObjectFormat format,
MtpObjectHandle parent);
MtpObjectInfo* getObjectInfo(MtpObjectHandle handle);
void* getThumbnail(MtpObjectHandle handle, int& outLength);
MtpObjectHandle sendObjectInfo(MtpObjectInfo* info);
bool sendObject(MtpObjectInfo* info, int srcFD);
bool deleteObject(MtpObjectHandle handle);
MtpObjectHandle getParent(MtpObjectHandle handle);
MtpObjectHandle getStorageID(MtpObjectHandle handle);
MtpObjectPropertyList* getObjectPropsSupported(MtpObjectFormat format);
MtpProperty* getDevicePropDesc(MtpDeviceProperty code);
MtpProperty* getObjectPropDesc(MtpObjectProperty code, MtpObjectFormat format);
bool readObject(MtpObjectHandle handle,
bool (* callback)(void* data, int offset,
int length, void* clientData),
size_t objectSize, void* clientData);
bool readObject(MtpObjectHandle handle, const char* destPath, int group,
int perm);
private:
bool sendRequest(MtpOperationCode operation);
bool sendData();
bool readData();
bool writeDataHeader(MtpOperationCode operation, int dataLength);
MtpResponseCode readResponse();
};
}; // namespace android
#endif // _MTP_DEVICE_H
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