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Diffstat (limited to 'mtp/ffs/MtpDataPacket.h')
| -rw-r--r-- | mtp/ffs/MtpDataPacket.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/mtp/ffs/MtpDataPacket.h b/mtp/ffs/MtpDataPacket.h new file mode 100644 index 000000000..2240a3dd4 --- /dev/null +++ b/mtp/ffs/MtpDataPacket.h @@ -0,0 +1,127 @@ +/* + * 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_DATA_PACKET_H +#define _MTP_DATA_PACKET_H + +#include "MtpPacket.h" +#include "mtp.h" + +struct usb_device; +struct usb_request; + +class IMtpHandle; +class MtpStringBuffer; + +class MtpDataPacket : public MtpPacket { +private: + // current offset for get/put methods + size_t mOffset; + +public: + MtpDataPacket(); + virtual ~MtpDataPacket(); + + virtual void reset(); + + void setOperationCode(MtpOperationCode code); + void setTransactionID(MtpTransactionID id); + + inline const uint8_t* getData() const { return mBuffer + MTP_CONTAINER_HEADER_SIZE; } + + bool getUInt8(uint8_t& value); + inline bool getInt8(int8_t& value) { return getUInt8((uint8_t&)value); } + bool getUInt16(uint16_t& value); + inline bool getInt16(int16_t& value) { return getUInt16((uint16_t&)value); } + bool getUInt32(uint32_t& value); + inline bool getInt32(int32_t& value) { return getUInt32((uint32_t&)value); } + bool getUInt64(uint64_t& value); + inline bool getInt64(int64_t& value) { return getUInt64((uint64_t&)value); } + bool getUInt128(uint128_t& value); + inline bool getInt128(int128_t& value) { return getUInt128((uint128_t&)value); } + bool getString(MtpStringBuffer& string); + + Int8List* getAInt8(); + UInt8List* getAUInt8(); + Int16List* getAInt16(); + UInt16List* getAUInt16(); + Int32List* getAInt32(); + UInt32List* getAUInt32(); + Int64List* getAInt64(); + UInt64List* getAUInt64(); + + void putInt8(int8_t value); + void putUInt8(uint8_t value); + void putInt16(int16_t value); + void putUInt16(uint16_t value); + void putInt32(int32_t value); + void putUInt32(uint32_t value); + void putInt64(int64_t value); + void putUInt64(uint64_t value); + void putInt128(const int128_t& value); + void putUInt128(const uint128_t& value); + void putInt128(int64_t value); + void putUInt128(uint64_t value); + + void putAInt8(const int8_t* values, int count); + void putAUInt8(const uint8_t* values, int count); + void putAInt16(const int16_t* values, int count); + void putAUInt16(const uint16_t* values, int count); + void putAUInt16(const UInt16List* values); + void putAInt32(const int32_t* values, int count); + void putAUInt32(const uint32_t* values, int count); + void putAUInt32(const UInt32List* list); + void putAInt64(const int64_t* values, int count); + void putAUInt64(const uint64_t* values, int count); + void putString(const MtpStringBuffer& string); + void putString(const char* string); + void putString(const uint16_t* string); + inline void putEmptyString() { putUInt8(0); } + inline void putEmptyArray() { putUInt32(0); } + +#ifdef MTP_DEVICE + // fill our buffer with data from the given usb handle + int read(IMtpHandle *h); + + // write our data to the given usb handle + int write(IMtpHandle *h); + int writeData(IMtpHandle *h, void* data, uint32_t length); +#endif + +#ifdef MTP_HOST + int read(struct usb_request *request); + int readData(struct usb_request *request, void* buffer, int length); + int readDataAsync(struct usb_request *req); + int readDataWait(struct usb_device *device); + int readDataHeader(struct usb_request *ep); + + // Write a whole data packet with payload to the end point given by a request. |divisionMode| + // specifies whether to divide header and payload. See |UrbPacketDivisionMode| for meanings of + // each value. Return the number of bytes (including header size) sent to the device on success. + // Otherwise -1. + int write(struct usb_request *request, UrbPacketDivisionMode divisionMode); + // Similar to previous write method but it reads the payload from |fd|. If |size| is larger than + // MTP_BUFFER_SIZE, the data will be sent by multiple bulk transfer requests. + int write(struct usb_request *request, UrbPacketDivisionMode divisionMode, + int fd, size_t size); +#endif + + inline bool hasData() const { return mPacketSize > MTP_CONTAINER_HEADER_SIZE; } + inline uint32_t getContainerLength() const { return MtpPacket::getUInt32(MTP_CONTAINER_LENGTH_OFFSET); } + void* getData(int* outLength) const; +}; + +#endif // _MTP_DATA_PACKET_H |