audiohal: Always load A2DP module locally
This makes legitimate unix socket interaction between A2DP
module and the Bluetooth stack.
Implemented by allowing both "local" and "hidl" interface
wrappers to co-exist for devices and streams. A "hybrid" device
factory is introduced to create an appropriate implementation
of a device depending on the requested module name.
Bug: 37640821
Test: Play Music over BT headset
Change-Id: I5592961dd5b56840418fb122680979d11a261b6c
diff --git a/media/libaudiohal/DevicesFactoryHalHybrid.cpp b/media/libaudiohal/DevicesFactoryHalHybrid.cpp
new file mode 100644
index 0000000..454b03b
--- /dev/null
+++ b/media/libaudiohal/DevicesFactoryHalHybrid.cpp
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2017 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.
+ */
+
+#define LOG_TAG "DevicesFactoryHalHybrid"
+//#define LOG_NDEBUG 0
+
+#include "DevicesFactoryHalHybrid.h"
+#include "DevicesFactoryHalLocal.h"
+#ifndef USE_LEGACY_LOCAL_AUDIO_HAL
+#include "DevicesFactoryHalHidl.h"
+#endif
+
+namespace android {
+
+// static
+sp<DevicesFactoryHalInterface> DevicesFactoryHalInterface::create() {
+ return new DevicesFactoryHalHybrid();
+}
+
+DevicesFactoryHalHybrid::DevicesFactoryHalHybrid()
+ : mLocalFactory(new DevicesFactoryHalLocal()),
+ mHidlFactory(
+#ifdef USE_LEGACY_LOCAL_AUDIO_HAL
+ nullptr
+#else
+ new DevicesFactoryHalHidl()
+#endif
+ ) {
+}
+
+DevicesFactoryHalHybrid::~DevicesFactoryHalHybrid() {
+}
+
+status_t DevicesFactoryHalHybrid::openDevice(const char *name, sp<DeviceHalInterface> *device) {
+ if (mHidlFactory != 0 && strcmp(AUDIO_HARDWARE_MODULE_ID_A2DP, name) != 0) {
+ return mHidlFactory->openDevice(name, device);
+ }
+ return mLocalFactory->openDevice(name, device);
+}
+
+} // namespace android