Initial contribution from Sony Corporation.

  Add DRM Framework to support DRM content playback
  together with StageFright.

  - DRM Framework code is added
     - include/drm
     - drm
  - api/current.xml is updated to include DRM Framework Java APIs
  - cmds/servicemanager/service_manager.c is modified
    to add drmManager and drmIOService.

Change-Id: I6d7bc9c7067362b500e530988a9ce241761866fb
diff --git a/drm/libdrmframework/include/IDrmIOService.h b/drm/libdrmframework/include/IDrmIOService.h
new file mode 100644
index 0000000..5e0d907
--- /dev/null
+++ b/drm/libdrmframework/include/IDrmIOService.h
@@ -0,0 +1,86 @@
+/*
+ * 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 __IDRM_IO_SERVICE_H__
+#define __IDRM_IO_SERVICE_H__
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+
+namespace android {
+
+/**
+ * This is the interface class for DRM IO service.
+ *
+ */
+class IDrmIOService : public IInterface
+{
+public:
+    enum {
+        WRITE_TO_FILE = IBinder::FIRST_CALL_TRANSACTION,
+        READ_FROM_FILE
+    };
+
+public:
+    DECLARE_META_INTERFACE(DrmIOService);
+
+public:
+    /**
+     * Writes the data into the file path provided
+     *
+     * @param[in] filePath Path of the file
+     * @param[in] dataBuffer Data to write
+     */
+    virtual void writeToFile(const String8& filePath, const String8& dataBuffer) = 0;
+
+    /**
+     * Reads the data from the file path provided
+     *
+     * @param[in] filePath Path of the file
+     * @return Data read from the file
+     */
+    virtual String8 readFromFile(const String8& filePath) = 0;
+};
+
+/**
+ * This is the Binder implementation class for DRM IO service.
+ */
+class BpDrmIOService: public BpInterface<IDrmIOService>
+{
+public:
+    BpDrmIOService(const sp<IBinder>& impl)
+            : BpInterface<IDrmIOService>(impl) {}
+
+    virtual void writeToFile(const String8& filePath, const String8& dataBuffer);
+
+    virtual String8 readFromFile(const String8& filePath);
+};
+
+/**
+ * This is the Binder implementation class for DRM IO service.
+ */
+class BnDrmIOService: public BnInterface<IDrmIOService>
+{
+public:
+    virtual status_t onTransact(
+            uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags = 0);
+};
+
+};
+
+#endif /* __IDRM_IO_SERVICE_H__ */
+