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>

1 files changed, 83 insertions, 0 deletions

diff --git a/media/mtp/MtpDevice.h b/media/mtp/MtpDevice.h
new file mode 100644
index 0000000..fe4f1bd
--- /dev/null
+++ b/media/mtp/MtpDevice.h
@@ -0,0 +1,83 @@
+/*
+ * 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_DEVICE_H
+#define _MTP_DEVICE_H
+
+#include "MtpRequestPacket.h"
+#include "MtpDataPacket.h"
+#include "MtpResponsePacket.h"
+#include "MtpTypes.h"
+
+namespace android {
+
+class MtpDeviceInfo;
+class MtpObjectInfo;
+class MtpStorageInfo;
+
+class MtpDevice {
+private:
+    struct usb_device*      mDevice;
+    int                     mInterface;
+    struct usb_endpoint*    mEndpointIn;
+    struct usb_endpoint*    mEndpointOut;
+    struct usb_endpoint*    mEndpointIntr;
+    MtpDeviceInfo*          mDeviceInfo;
+
+    // a unique ID for the device
+    int                     mID;
+
+    // current session ID
+    MtpSessionID            mSessionID;
+    // current transaction ID
+    MtpTransactionID        mTransactionID;
+
+    MtpRequestPacket        mRequest;
+    MtpDataPacket           mData;
+    MtpResponsePacket       mResponse;
+
+public:
+                            MtpDevice(struct usb_device* device, int interface,
+                                    struct usb_endpoint *ep_in, struct usb_endpoint *ep_out,
+                                    struct usb_endpoint *ep_intr);
+    virtual                 ~MtpDevice();
+
+    inline int              getID() const { return mID; }
+
+    void                    initialize();
+    void                    close();
+    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);
+
+private:
+    bool                    sendRequest(MtpOperationCode operation);
+    bool                    sendData(MtpOperationCode operation);
+    bool                    readData();
+    MtpResponseCode         readResponse();
+
+};
+
+}; // namespace android
+
+#endif // _MTP_DEVICE_H