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79 lines
2.2 KiB
79 lines
2.2 KiB
/*
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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_PACKET_H
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#define _MTP_PACKET_H
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#include <android-base/macros.h>
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#include "MtpDebug.h"
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#include "MtpTypes.h"
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struct usb_device;
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struct usb_request;
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namespace android {
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class MtpPacket {
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protected:
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uint8_t* mBuffer;
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// current size of the buffer
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size_t mBufferSize;
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// number of bytes to add when resizing the buffer
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size_t mAllocationIncrement;
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// size of the data in the packet
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size_t mPacketSize;
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public:
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explicit MtpPacket(int bufferSize);
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virtual ~MtpPacket();
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// sets packet size to the default container size and sets buffer to zero
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virtual void reset();
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void allocate(size_t length);
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void dump();
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void copyFrom(const MtpPacket& src);
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uint16_t getContainerCode() const;
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void setContainerCode(uint16_t code);
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uint16_t getContainerType() const;
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MtpTransactionID getTransactionID() const;
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void setTransactionID(MtpTransactionID id);
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uint32_t getParameter(int index) const;
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void setParameter(int index, uint32_t value);
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#ifdef MTP_HOST
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int transfer(struct usb_request* request);
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#endif
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protected:
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uint16_t getUInt16(int offset) const;
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uint32_t getUInt32(int offset) const;
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void putUInt16(int offset, uint16_t value);
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void putUInt32(int offset, uint32_t value);
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DISALLOW_COPY_AND_ASSIGN(MtpPacket);
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};
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}; // namespace android
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#endif // _MTP_PACKET_H
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