policy_hal: Initial commit for target specific audio policy
- Derive target specific audio policy manager from the base class.
- Allow selection of USB analog dock headset device for voice calls.
Change-Id: I351e88a6abe02e56a14b4eef4c04862e79c5777c
diff --git a/policy_hal/AudioPolicyManager.h b/policy_hal/AudioPolicyManager.h
new file mode 100644
index 0000000..b061520
--- /dev/null
+++ b/policy_hal/AudioPolicyManager.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ * Not a contribution.
+ *
+ * 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 <sys/types.h>
+#include <utils/Timers.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <hardware_legacy/AudioPolicyManagerBase.h>
+
+
+namespace android_audio_legacy {
+
+// ----------------------------------------------------------------------------
+
+class AudioPolicyManager: public AudioPolicyManagerBase
+{
+
+public:
+ AudioPolicyManager(AudioPolicyClientInterface *clientInterface)
+ : AudioPolicyManagerBase(clientInterface) {}
+
+ virtual ~AudioPolicyManager() {}
+
+protected:
+ // return appropriate device for streams handled by the specified strategy according to current
+ // phone state, connected devices...
+ // if fromCache is true, the device is returned from mDeviceForStrategy[],
+ // otherwise it is determine by current state
+ // (device connected,phone state, force use, a2dp output...)
+ // This allows to:
+ // 1 speed up process when the state is stable (when starting or stopping an output)
+ // 2 access to either current device selection (fromCache == true) or
+ // "future" device selection (fromCache == false) when called from a context
+ // where conditions are changing (setDeviceConnectionState(), setPhoneState()...) AND
+ // before updateDevicesAndOutputs() is called.
+ virtual audio_devices_t getDeviceForStrategy(routing_strategy strategy,
+ bool fromCache = true);
+};
+};