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/MtpDevice.h b/mtp/legacy/MtpDevice.h
new file mode 100644
index 0000000..34b39ec
--- /dev/null
+++ b/mtp/legacy/MtpDevice.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_DEVICE_H
+#define _MTP_DEVICE_H
+
+#include "MtpRequestPacket.h"
+#include "MtpDataPacket.h"
+#include "MtpResponsePacket.h"
+#include "MtpTypes.h"
+
+#include <utils/threads.h>
+
+struct usb_device;
+struct usb_request;
+struct usb_endpoint_descriptor;
+
+
+class MtpDeviceInfo;
+class MtpObjectInfo;
+class MtpStorageInfo;
+
+class MtpDevice {
+private:
+ struct usb_device* mDevice;
+ int mInterface;
+ struct usb_request* mRequestIn1;
+ struct usb_request* mRequestIn2;
+ struct usb_request* mRequestOut;
+ struct usb_request* mRequestIntr;
+ MtpDeviceInfo* mDeviceInfo;
+ MtpPropertyList mDeviceProperties;
+
+ // current session ID
+ MtpSessionID mSessionID;
+ // current transaction ID
+ MtpTransactionID mTransactionID;
+
+ MtpRequestPacket mRequest;
+ MtpDataPacket mData;
+ MtpResponsePacket mResponse;
+ // set to true if we received a response packet instead of a data packet
+ bool mReceivedResponse;
+
+ // to ensure only one MTP transaction at a time
+ android::Mutex mMutex;
+
+public:
+ MtpDevice(struct usb_device* device, int interface,
+ const struct usb_endpoint_descriptor *ep_in,
+ const struct usb_endpoint_descriptor *ep_out,
+ const struct usb_endpoint_descriptor *ep_intr);
+
+ static MtpDevice* open(const char* deviceName, int fd);
+
+ virtual ~MtpDevice();
+
+ void initialize();
+ void close();
+ void print();
+ const char* getDeviceName();
+
+ bool openSession();
+ bool closeSession();
+
+ MtpDeviceInfo* getDeviceInfo();
+ MtpStorageIDList* getStorageIDs();
+ MtpStorageInfo* getStorageInfo(MtpStorageID storageID);
+ MtpObjectHandleList* getObjectHandles(MtpStorageID storageID, MtpObjectFormat format,
+ MtpObjectHandle parent);
+ MtpObjectInfo* getObjectInfo(MtpObjectHandle handle);
+ void* getThumbnail(MtpObjectHandle handle, int& outLength);
+ MtpObjectHandle sendObjectInfo(MtpObjectInfo* info);
+ bool sendObject(MtpObjectInfo* info, int srcFD);
+ bool deleteObject(MtpObjectHandle handle);
+ MtpObjectHandle getParent(MtpObjectHandle handle);
+ MtpObjectHandle getStorageID(MtpObjectHandle handle);
+
+ MtpObjectPropertyList* getObjectPropsSupported(MtpObjectFormat format);
+
+ MtpProperty* getDevicePropDesc(MtpDeviceProperty code);
+ MtpProperty* getObjectPropDesc(MtpObjectProperty code, MtpObjectFormat format);
+
+ bool readObject(MtpObjectHandle handle,
+ bool (* callback)(void* data, int offset,
+ int length, void* clientData),
+ int objectSize, void* clientData);
+ bool readObject(MtpObjectHandle handle, const char* destPath, int group,
+ int perm);
+
+private:
+ bool sendRequest(MtpOperationCode operation);
+ bool sendData();
+ bool readData();
+ bool writeDataHeader(MtpOperationCode operation, int dataLength);
+ MtpResponseCode readResponse();
+
+};
+
+
+#endif // _MTP_DEVICE_H