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>

1 files changed, 86 insertions, 0 deletions

diff --git a/media/mtp/MtpServer.h b/media/mtp/MtpServer.h
new file mode 100644
index 0000000..81b1c81
--- /dev/null
+++ b/media/mtp/MtpServer.h
@@ -0,0 +1,86 @@
+/*
+ * 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_SERVER_H
+#define _MTP_SERVER_H
+
+#include "MtpRequestPacket.h"
+#include "MtpDataPacket.h"
+#include "MtpResponsePacket.h"
+#include "mtp.h"
+
+#include "MtpUtils.h"
+
+class MtpStorage;
+class MtpDatabase;
+
+class MtpServer {
+
+private:
+    // file descriptor for MTP kernel driver
+    int                 mFD;
+
+    // path to our sqlite3 database
+    const char*         mDatabasePath;
+
+    MtpDatabase*        mDatabase;
+
+    // current session ID
+    MtpSessionID        mSessionID;
+    // true if we have an open session and mSessionID is valid
+    bool                mSessionOpen;
+
+    MtpRequestPacket    mRequest;
+    MtpDataPacket       mData;
+    MtpResponsePacket   mResponse;
+
+    MtpStorageList      mStorages;
+
+    // handle for new object, set by SendObjectInfo and used by SendObject
+    MtpObjectHandle     mSendObjectHandle;
+    MtpString           mSendObjectFilePath;
+    size_t              mSendObjectFileSize;
+
+public:
+                        MtpServer(int fd, const char* databasePath);
+    virtual             ~MtpServer();
+
+    void                addStorage(const char* filePath);
+    inline void         addStorage(MtpStorage* storage) { mStorages.push(storage); }
+    MtpStorage*         getStorage(MtpStorageID id);
+    void                scanStorage();
+    void                run();
+
+private:
+    void                handleRequest();
+
+    MtpResponseCode     doGetDeviceInfo();
+    MtpResponseCode     doOpenSession();
+    MtpResponseCode     doCloseSession();
+    MtpResponseCode     doGetStorageIDs();
+    MtpResponseCode     doGetStorageInfo();
+    MtpResponseCode     doGetObjectPropsSupported();
+    MtpResponseCode     doGetObjectHandles();
+    MtpResponseCode     doGetObjectPropValue();
+    MtpResponseCode     doGetObjectInfo();
+    MtpResponseCode     doGetObject();
+    MtpResponseCode     doSendObjectInfo();
+    MtpResponseCode     doSendObject();
+    MtpResponseCode     doDeleteObject();
+    MtpResponseCode     doGetObjectPropDesc();
+};
+
+#endif // _MTP_SERVER_H