56118b5b38
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 <lockwood@android.com>
51 lines
1.3 KiB
C++
51 lines
1.3 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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#include <stdio.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include "MtpRequestPacket.h"
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MtpRequestPacket::MtpRequestPacket()
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: MtpPacket(512)
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{
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}
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MtpRequestPacket::~MtpRequestPacket() {
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}
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#ifdef MTP_DEVICE
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int MtpRequestPacket::read(int fd) {
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int ret = ::read(fd, mBuffer, mBufferSize);
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if (ret >= 0)
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mPacketSize = ret;
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else
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mPacketSize = 0;
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return ret;
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}
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#endif
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#ifdef MTP_HOST
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// write our buffer to the given endpoint (host mode)
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int MtpRequestPacket::write(struct usb_endpoint *ep)
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{
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putUInt32(MTP_CONTAINER_LENGTH_OFFSET, mPacketSize);
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putUInt16(MTP_CONTAINER_TYPE_OFFSET, MTP_CONTAINER_TYPE_COMMAND);
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return transfer(ep, mBuffer, mPacketSize);
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}
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#endif
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