Treble HAL interfaces for drm+crypto

b/32815560

Tests: Make completes successfully

Change-Id: Id65cfef95094ccd9a9e95fa567651f94b66aaa51
diff --git a/drm/crypto/1.0/ICryptoFactory.hal b/drm/crypto/1.0/ICryptoFactory.hal
new file mode 100644
index 0000000..58f86df
--- /dev/null
+++ b/drm/crypto/1.0/ICryptoFactory.hal
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2016 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.hardware.drm.crypto@1.0;
+
+import ICryptoPlugin;
+
+/**
+ * Ref: frameworks/native/include/media/hardware/CryptoAPI.h:CryptoFactory
+ *
+ * ICryptoFactory is the main entry point for interacting with a vendor's
+ * crypto HAL to create crypto plugins. Crypto plugins create crypto sessions
+ * which are used by a codec to decrypt protected video content.
+ */
+interface ICryptoFactory {
+    /*
+     * Determine if a crypto scheme is supported by this HAL
+     *
+     * @param uuid identifies the crypto scheme in question
+     * @return isSupported must be true only if the scheme is supported
+     */
+    isCryptoSchemeSupported(uint8_t[16] uuid) generates(bool isSupported);
+
+    /*
+     * Create a crypto plugin for the specified uuid and scheme-specific
+     * initialization data.
+     *
+     * @param uuid uniquely identifies the drm scheme. See
+     * http://dashif.org/identifiers/protection for uuid assignments
+     * @param initData scheme-specific init data.
+     * @return the status of the call
+     * @return the created ICryptoPlugin
+    */
+    createPlugin(uint8_t[16] uuid, vec<uint8_t> initData)
+        generates (Status status, ICryptoPlugin cryptoPlugin);
+
+    /*
+     * Destroy a previously created crypto plugin
+     *
+     * @return status the status of the call
+     */
+    destroyPlugin() generates(Status status);
+};