From 16864bae0f51c32c456da2c43adf7a057c0c4882 Mon Sep 17 00:00:00 2001 From: Mike Lockwood Date: Tue, 11 May 2010 17:16:59 -0400 Subject: Checkpoint work on MTP and PTP investigation. This change includes work in progress on a C++ library for both host and device MTP and PTP support. Currently the makefile builds two test programs: mtptest - a command line test program that implements a small subset of device side MTP. Requires a kernel driver that has not been checked in yet. ptptest - a host tool to test USB host support for detecting and communicating with digital cameras over PTP. Runs on Linux host. Later this will be reformulated as a native library that will be used in the media process. Change-Id: I81aab279975b600b59d99013ab97f9adf0b58da7 Signed-off-by: Mike Lockwood --- media/mtp/MtpPacket.h | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 media/mtp/MtpPacket.h (limited to 'media/mtp/MtpPacket.h') diff --git a/media/mtp/MtpPacket.h b/media/mtp/MtpPacket.h new file mode 100644 index 0000000..26a3c24 --- /dev/null +++ b/media/mtp/MtpPacket.h @@ -0,0 +1,68 @@ +/* + * 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_PACKET_H +#define _MTP_PACKET_H + +class MtpStringBuffer; + +#include "mtp.h" +#include "MtpUtils.h" + +#include + +class MtpPacket { + +protected: + uint8_t* mBuffer; + // current size of the buffer + int mBufferSize; + // number of bytes to add when resizing the buffer + int mAllocationIncrement; + // size of the data in the packet + int mPacketSize; + +public: + MtpPacket(int bufferSize); + virtual ~MtpPacket(); + + // sets packet size to the default container size and sets buffer to zero + virtual void reset(); + + void allocate(int length); + void dump(); + + uint16_t getContainerCode() const; + void setContainerCode(uint16_t code); + + MtpTransactionID getTransactionID() const; + void setTransactionID(MtpTransactionID id); + + uint32_t getParameter(int index) const; + void setParameter(int index, uint32_t value); + +#ifdef MTP_HOST + int transfer(struct usb_endpoint *ep, void* buffer, int length); +#endif + +protected: + uint16_t getUInt16(int offset) const; + uint32_t getUInt32(int offset) const; + void putUInt16(int offset, uint16_t value); + void putUInt32(int offset, uint32_t value); +}; + +#endif // _MTP_PACKET_H -- cgit v1.1