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author | Mike Lockwood <lockwood@android.com> | 2010-05-11 17:16:59 -0400 |
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committer | Mike Lockwood <lockwood@android.com> | 2010-05-13 15:36:47 -0400 |
commit | 16864bae0f51c32c456da2c43adf7a057c0c4882 (patch) | |
tree | 87eb11d62168084c9e63cdd2bf5fd5d35a573df7 /media/mtp/MtpPacket.h | |
parent | 328523627293790cbf485fa6095b38a5fdb2118e (diff) | |
download | frameworks_av-16864bae0f51c32c456da2c43adf7a057c0c4882.zip frameworks_av-16864bae0f51c32c456da2c43adf7a057c0c4882.tar.gz frameworks_av-16864bae0f51c32c456da2c43adf7a057c0c4882.tar.bz2 |
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 <lockwood@android.com>
Diffstat (limited to 'media/mtp/MtpPacket.h')
-rw-r--r-- | media/mtp/MtpPacket.h | 68 |
1 files changed, 68 insertions, 0 deletions
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 <stdint.h> + +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 |