MTP FFS updates:

This update splits old MTP code and new MTP code from Google
into two trees, legacy and ffs. Depending on the SDK level,
the build system will select the correct version. The reason
for separating the versions out are due to older android trees
not supporting the updated MTP code from Google.

Most MTP code is from Google, with additions needed from
implementing the Java functions in C++ for TWRP and FFS.

We assume if you are in android-9.0 or above, your kernel
has support for FFS over MTP. Verify that your init.rc
is mounting the MTP FFS driver to the proper location.

Change-Id: I4b107b239bd9bc5699527f9c8c77d9079f264a7e
diff --git a/mtp/legacy/MtpDatabase.h b/mtp/legacy/MtpDatabase.h
new file mode 100644
index 0000000..f7f33ff
--- /dev/null
+++ b/mtp/legacy/MtpDatabase.h
@@ -0,0 +1,116 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2014 TeamWin - bigbiff and Dees_Troy mtp database conversion to c++
+ */
+
+#ifndef _MTP_DATABASE_H
+#define _MTP_DATABASE_H
+
+#include "MtpTypes.h"
+
+class MtpDataPacket;
+class MtpProperty;
+class MtpObjectInfo;
+
+class MtpDatabase {
+public:
+	virtual ~MtpDatabase() {}
+
+	// called from SendObjectInfo to reserve a database entry for the incoming file
+	virtual MtpObjectHandle			beginSendObject(const char* path,
+											MtpObjectFormat format,
+											MtpObjectHandle parent,
+											MtpStorageID storage,
+											uint64_t size,
+											time_t modified) = 0;
+
+	// called to report success or failure of the SendObject file transfer
+	// success should signal a notification of the new object's creation,
+	// failure should remove the database entry created in beginSendObject
+	virtual void					endSendObject(const char* path,
+											MtpObjectHandle handle,
+											MtpObjectFormat format,
+											bool succeeded) = 0;
+
+	virtual MtpObjectHandleList*	getObjectList(MtpStorageID storageID,
+											MtpObjectFormat format,
+											MtpObjectHandle parent) = 0;
+
+	virtual int						getNumObjects(MtpStorageID storageID,
+											MtpObjectFormat format,
+											MtpObjectHandle parent) = 0;
+
+	// callee should delete[] the results from these
+	// results can be NULL
+	virtual MtpObjectFormatList*	getSupportedPlaybackFormats() = 0;
+	virtual MtpObjectFormatList*	getSupportedCaptureFormats() = 0;
+	virtual MtpObjectPropertyList*	getSupportedObjectProperties(MtpObjectFormat format) = 0;
+	virtual MtpDevicePropertyList*	getSupportedDeviceProperties() = 0;
+
+	virtual void					createDB(MtpStorage* storage, MtpStorageID storageID) = 0;
+	virtual void					destroyDB(MtpStorageID storageID) = 0;
+
+	virtual MtpResponseCode			getObjectPropertyValue(MtpObjectHandle handle,
+											MtpObjectProperty property,
+											MtpDataPacket& packet) = 0;
+
+	virtual MtpResponseCode			setObjectPropertyValue(MtpObjectHandle handle,
+											MtpObjectProperty property,
+											MtpDataPacket& packet) = 0;
+
+	virtual MtpResponseCode			getDevicePropertyValue(MtpDeviceProperty property,
+											MtpDataPacket& packet) = 0;
+
+	virtual MtpResponseCode			setDevicePropertyValue(MtpDeviceProperty property,
+											MtpDataPacket& packet) = 0;
+
+	virtual MtpResponseCode			resetDeviceProperty(MtpDeviceProperty property) = 0;
+
+	virtual MtpResponseCode			getObjectPropertyList(MtpObjectHandle handle,
+											uint32_t format, uint32_t property,
+											int groupCode, int depth,
+											MtpDataPacket& packet) = 0;
+
+	virtual MtpResponseCode			getObjectInfo(MtpObjectHandle handle,
+											MtpObjectInfo& info) = 0;
+
+	virtual void*					getThumbnail(MtpObjectHandle handle, size_t& outThumbSize) = 0;
+
+	virtual MtpResponseCode			getObjectFilePath(MtpObjectHandle handle,
+											MtpString& outFilePath,
+											int64_t& outFileLength,
+											MtpObjectFormat& outFormat) = 0;
+
+	virtual MtpResponseCode			deleteFile(MtpObjectHandle handle) = 0;
+
+	virtual MtpObjectHandleList*	getObjectReferences(MtpObjectHandle handle) = 0;
+
+	virtual MtpResponseCode			setObjectReferences(MtpObjectHandle handle,
+											MtpObjectHandleList* references) = 0;
+
+	virtual MtpProperty*			getObjectPropertyDesc(MtpObjectProperty property,
+											MtpObjectFormat format) = 0;
+
+	virtual MtpProperty*			getDevicePropertyDesc(MtpDeviceProperty property) = 0;
+
+	virtual void					sessionStarted() = 0;
+
+	virtual void					sessionEnded() = 0;
+	virtual void					lockMutex() = 0;
+	virtual void					unlockMutex() = 0;
+};
+
+#endif // _MTP_DATABASE_H