af32bb9c4f
This update splits old MTP code and new MTP code from Google into two trees, legacy and ffs. Depending on the SDK level, the build system will select the correct version. The reason for separating the versions out are due to older android trees not supporting the updated MTP code from Google. Most MTP code is from Google, with additions needed from implementing the Java functions in C++ for TWRP and FFS. We assume if you are in android-9.0 or above, your kernel has support for FFS over MTP. Verify that your init.rc is mounting the MTP FFS driver to the proper location. Change-Id: I4b107b239bd9bc5699527f9c8c77d9079f264a7e
128 lines
4.6 KiB
C++
128 lines
4.6 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_DATA_PACKET_H
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#define _MTP_DATA_PACKET_H
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#include "MtpPacket.h"
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#include "mtp.h"
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struct usb_device;
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struct usb_request;
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class IMtpHandle;
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class MtpStringBuffer;
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class MtpDataPacket : public MtpPacket {
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private:
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// current offset for get/put methods
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size_t mOffset;
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public:
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MtpDataPacket();
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virtual ~MtpDataPacket();
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virtual void reset();
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void setOperationCode(MtpOperationCode code);
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void setTransactionID(MtpTransactionID id);
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inline const uint8_t* getData() const { return mBuffer + MTP_CONTAINER_HEADER_SIZE; }
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bool getUInt8(uint8_t& value);
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inline bool getInt8(int8_t& value) { return getUInt8((uint8_t&)value); }
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bool getUInt16(uint16_t& value);
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inline bool getInt16(int16_t& value) { return getUInt16((uint16_t&)value); }
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bool getUInt32(uint32_t& value);
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inline bool getInt32(int32_t& value) { return getUInt32((uint32_t&)value); }
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bool getUInt64(uint64_t& value);
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inline bool getInt64(int64_t& value) { return getUInt64((uint64_t&)value); }
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bool getUInt128(uint128_t& value);
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inline bool getInt128(int128_t& value) { return getUInt128((uint128_t&)value); }
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bool getString(MtpStringBuffer& string);
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Int8List* getAInt8();
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UInt8List* getAUInt8();
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Int16List* getAInt16();
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UInt16List* getAUInt16();
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Int32List* getAInt32();
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UInt32List* getAUInt32();
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Int64List* getAInt64();
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UInt64List* getAUInt64();
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void putInt8(int8_t value);
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void putUInt8(uint8_t value);
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void putInt16(int16_t value);
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void putUInt16(uint16_t value);
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void putInt32(int32_t value);
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void putUInt32(uint32_t value);
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void putInt64(int64_t value);
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void putUInt64(uint64_t value);
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void putInt128(const int128_t& value);
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void putUInt128(const uint128_t& value);
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void putInt128(int64_t value);
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void putUInt128(uint64_t value);
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void putAInt8(const int8_t* values, int count);
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void putAUInt8(const uint8_t* values, int count);
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void putAInt16(const int16_t* values, int count);
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void putAUInt16(const uint16_t* values, int count);
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void putAUInt16(const UInt16List* values);
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void putAInt32(const int32_t* values, int count);
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void putAUInt32(const uint32_t* values, int count);
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void putAUInt32(const UInt32List* list);
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void putAInt64(const int64_t* values, int count);
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void putAUInt64(const uint64_t* values, int count);
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void putString(const MtpStringBuffer& string);
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void putString(const char* string);
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void putString(const uint16_t* string);
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inline void putEmptyString() { putUInt8(0); }
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inline void putEmptyArray() { putUInt32(0); }
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#ifdef MTP_DEVICE
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// fill our buffer with data from the given usb handle
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int read(IMtpHandle *h);
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// write our data to the given usb handle
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int write(IMtpHandle *h);
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int writeData(IMtpHandle *h, void* data, uint32_t length);
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#endif
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#ifdef MTP_HOST
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int read(struct usb_request *request);
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int readData(struct usb_request *request, void* buffer, int length);
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int readDataAsync(struct usb_request *req);
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int readDataWait(struct usb_device *device);
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int readDataHeader(struct usb_request *ep);
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// Write a whole data packet with payload to the end point given by a request. |divisionMode|
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// specifies whether to divide header and payload. See |UrbPacketDivisionMode| for meanings of
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// each value. Return the number of bytes (including header size) sent to the device on success.
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// Otherwise -1.
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int write(struct usb_request *request, UrbPacketDivisionMode divisionMode);
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// Similar to previous write method but it reads the payload from |fd|. If |size| is larger than
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// MTP_BUFFER_SIZE, the data will be sent by multiple bulk transfer requests.
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int write(struct usb_request *request, UrbPacketDivisionMode divisionMode,
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int fd, size_t size);
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#endif
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inline bool hasData() const { return mPacketSize > MTP_CONTAINER_HEADER_SIZE; }
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inline uint32_t getContainerLength() const { return MtpPacket::getUInt32(MTP_CONTAINER_LENGTH_OFFSET); }
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void* getData(int* outLength) const;
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};
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#endif // _MTP_DATA_PACKET_H
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