Prototype Content Provider support for MTP/PTP devices.

At this point much of the plumbing is in place, but only a few simple queries are supported. This is enough to support a proof of concept sample program that navigates the file hierarchy of a digital camera connected via USB. Also removed obsolete ptptest host test program. Change-Id: I17644344b9f0ce1ecc302bc0478c1f3d44a1647f Signed-off-by: Mike Lockwood <lockwood@android.com>
2010-05-25 19:08:48 -04:00
parent a393a85d2b
commit 755fd61725
16 changed files with 1591 additions and 378 deletions
--- a/core/java/android/provider/Mtp.java
+++ b/core/java/android/provider/Mtp.java
@@ -0,0 +1,100 @@
+/*
+ * 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.provider;
+
+import android.content.ContentUris;
+import android.net.Uri;
+import android.util.Log;
+
+
+/**
+ * The MTP provider supports accessing content on MTP and PTP devices.
+ * @hide
+ */
+public final class Mtp
+{
+    private final static String TAG = "Mtp";
+
+    public static final String AUTHORITY = "mtp";
+
+    private static final String CONTENT_AUTHORITY_SLASH = "content://" + AUTHORITY + "/";
+    private static final String CONTENT_AUTHORITY_DEVICE_SLASH = "content://" + AUTHORITY + "/device/";
+
+    /**
+     * Contains list of all MTP/PTP devices
+     */
+    public static final class Device implements BaseColumns {
+
+        public static final Uri CONTENT_URI = Uri.parse(CONTENT_AUTHORITY_SLASH + "device");
+
+        /**
+         * The manufacturer of the device
+         * <P>Type: TEXT</P>
+         */
+        public static final String MANUFACTURER = "manufacturer";
+
+        /**
+         * The model name of the device
+         * <P>Type: TEXT</P>
+         */
+        public static final String MODEL = "model";
+    }
+
+    /**
+     * Contains list of storage units for an MTP/PTP device
+     */
+    public static final class Storage implements BaseColumns {
+
+        public static Uri getContentUri(int deviceID) {
+            return Uri.parse(CONTENT_AUTHORITY_DEVICE_SLASH + deviceID + "/storage");
+        }
+
+        /**
+         * Storage unit identifier
+         * <P>Type: TEXT</P>
+         */
+        public static final String IDENTIFIER = "identifier";
+
+        /**
+         * Storage unit description
+         * <P>Type: TEXT</P>
+         */
+        public static final String DESCRIPTION = "description";
+    }
+
+    /**
+     * Contains list of objects on an MTP/PTP device
+     */
+    public static final class Object implements BaseColumns {
+
+        public static Uri getContentUriForObjectChildren(int deviceID, int objectID) {
+            return Uri.parse(CONTENT_AUTHORITY_DEVICE_SLASH + deviceID
+                    + "/object/" + objectID + "/child");
+        }
+
+        public static Uri getContentUriForStorageChildren(int deviceID, int storageID) {
+            return Uri.parse(CONTENT_AUTHORITY_DEVICE_SLASH + deviceID
+                    + "/storage/" + storageID + "/child");
+        }
+
+        /**
+         * Name of the object
+         * <P>Type: TEXT</P>
+         */
+        public static final String NAME = "name";
+    }
+}