1 files changed, 141 insertions, 0 deletions
diff --git a/media/java/android/mtp/MtpDevice.java b/media/java/android/mtp/MtpDevice.java
new file mode 100644
index 0000000..2d726c2
--- /dev/null
+++ b/media/java/android/mtp/MtpDevice.java
@@ -0,0 +1,141 @@
+/*
+ * 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.
+ */
+
+package android.mtp;
+
+import android.hardware.UsbDevice;
+import android.hardware.UsbManager;
+import android.os.ParcelFileDescriptor;
+import android.util.Log;
+
+/**
+ * This class represents an MTP device connected on the USB host bus.
+ *
+ * {@hide}
+ */
+public final class MtpDevice {
+
+    private static final String TAG = "MtpDevice";
+
+    private final UsbDevice mDevice;
+
+    static {
+        System.loadLibrary("media_jni");
+    }
+
+    public MtpDevice(UsbDevice device) {
+        mDevice = device;
+    }
+
+    public boolean open(UsbManager manager) {
+        if (manager.openDevice(mDevice)) {
+            return native_open(mDevice.getDeviceName(), mDevice.getFileDescriptor());
+        } else {
+            return false;
+        }
+    }
+
+    public void close() {
+        Log.d(TAG, "close");
+        native_close();
+    }
+
+    @Override
+    protected void finalize() throws Throwable {
+        Log.d(TAG, "finalize");
+        try {
+            native_close();
+        } finally {
+            super.finalize();
+        }
+    }
+
+    public String getDeviceName() {
+        return mDevice.getDeviceName();
+    }
+
+    public int getDeviceId() {
+        return mDevice.getDeviceId();
+    }
+
+    @Override
+    public String toString() {
+        return mDevice.getDeviceName();
+    }
+
+    public MtpDeviceInfo getDeviceInfo() {
+        return native_get_device_info();
+    }
+
+    public int[] getStorageIds() {
+        return native_get_storage_ids();
+    }
+
+    public int[] getObjectHandles(int storageId, int format, int objectHandle) {
+        return native_get_object_handles(storageId, format, objectHandle);
+    }
+
+    public byte[] getObject(int objectHandle, int objectSize) {
+        return native_get_object(objectHandle, objectSize);
+    }
+
+    public byte[] getThumbnail(int objectHandle) {
+        return native_get_thumbnail(objectHandle);
+    }
+
+    public MtpStorageInfo getStorageInfo(int storageId) {
+        return native_get_storage_info(storageId);
+    }
+
+    public MtpObjectInfo getObjectInfo(int objectHandle) {
+        return native_get_object_info(objectHandle);
+    }
+
+    public boolean deleteObject(int objectHandle) {
+        return native_delete_object(objectHandle);
+    }
+
+    public long getParent(int objectHandle) {
+        return native_get_parent(objectHandle);
+    }
+
+    public long getStorageID(int objectHandle) {
+        return native_get_storage_id(objectHandle);
+    }
+
+    // Reads a file from device to host to the specified destination.
+    // Returns true if the transfer succeeds.
+    public boolean importFile(int objectHandle, String destPath) {
+        return native_import_file(objectHandle, destPath);
+    }
+
+    // used by the JNI code
+    private int mNativeContext;
+
+    private native boolean native_open(String deviceName, int fd);
+    private native void native_close();
+    private native MtpDeviceInfo native_get_device_info();
+    private native int[] native_get_storage_ids();
+    private native MtpStorageInfo native_get_storage_info(int storageId);
+    private native int[] native_get_object_handles(int storageId, int format, int objectHandle);
+    private native MtpObjectInfo native_get_object_info(int objectHandle);
+    private native byte[] native_get_object(int objectHandle, int objectSize);
+    private native byte[] native_get_thumbnail(int objectHandle);
+    private native boolean native_delete_object(int objectHandle);
+    private native long native_get_parent(int objectHandle);
+    private native long native_get_storage_id(int objectHandle);
+    private native boolean native_import_file(int objectHandle, String destPath);
+}