hardware_legacy/audio: provide a default audio policy implementation

This uses the legacy policy code to build a default implementation that
can be used while we figure out what the new policy inheritance should
look like.

Change-Id: I3e4154abc7152b4f560b28e391a268bf508767e3
Signed-off-by: Dima Zavin <dima@android.com>

3 files changed, 105 insertions, 0 deletions

diff --git a/audio/Android.mk b/audio/Android.mk
index 5a5a5a1..ef41374 100644
--- a/audio/Android.mk
+++ b/audio/Android.mk
@@ -41,6 +41,34 @@ LOCAL_MODULE_TAGS := optional
 
 include $(BUILD_STATIC_LIBRARY)
 
+# The default audio policy, for now still implemented on top of legacy
+# policy code
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+    AudioPolicyManagerDefault.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+    libcutils \
+    libutils \
+    libmedia
+
+LOCAL_STATIC_LIBRARIES := \
+    libmedia_helper
+
+LOCAL_WHOLE_STATIC_LIBRARIES := \
+    libaudiopolicy_legacy
+
+LOCAL_MODULE := audio_policy.default
+LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
+LOCAL_MODULE_TAGS := optional
+
+ifeq ($(BOARD_HAVE_BLUETOOTH),true)
+  LOCAL_CFLAGS += -DWITH_A2DP
+endif
+
+include $(BUILD_SHARED_LIBRARY)
+
 #ifeq ($(ENABLE_AUDIO_DUMP),true)
 #  LOCAL_SRC_FILES += AudioDumpInterface.cpp
 #  LOCAL_CFLAGS += -DENABLE_AUDIO_DUMP
diff --git a/audio/AudioPolicyManagerDefault.cpp b/audio/AudioPolicyManagerDefault.cpp
new file mode 100644
index 0000000..9083638
--- /dev/null
+++ b/audio/AudioPolicyManagerDefault.cpp
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2009 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 "AudioPolicyManagerDefault"
+//#define LOG_NDEBUG 0
+
+#include "AudioPolicyManagerDefault.h"
+
+namespace android_audio_legacy {
+
+extern "C" AudioPolicyInterface* createAudioPolicyManager(AudioPolicyClientInterface *clientInterface)
+{
+    return new AudioPolicyManagerDefault(clientInterface);
+}
+
+extern "C" void destroyAudioPolicyManager(AudioPolicyInterface *interface)
+{
+    delete interface;
+}
+
+}; // namespace android
diff --git a/audio/AudioPolicyManagerDefault.h b/audio/AudioPolicyManagerDefault.h
new file mode 100644
index 0000000..b2b2576
--- /dev/null
+++ b/audio/AudioPolicyManagerDefault.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <hardware_legacy/AudioPolicyManagerBase.h>
+
+namespace android_audio_legacy {
+
+class AudioPolicyManagerDefault: public AudioPolicyManagerBase
+{
+
+public:
+                AudioPolicyManagerDefault(AudioPolicyClientInterface *clientInterface)
+                : AudioPolicyManagerBase(clientInterface) {}
+
+        virtual ~AudioPolicyManagerDefault() {}
+
+protected:
+        // true is current platform implements a back microphone
+        virtual bool hasBackMicrophone() const { return false; }
+#ifdef WITH_A2DP
+        // true is current platform supports suplication of notifications and ringtones over A2DP output
+        virtual bool a2dpUsedForSonification() const { return true; }
+#endif
+
+};
+};