Add a configurable version of the policy engine based on PFW

This patch adds a configurable version of the policy engine
based on the parameter framework.
This configurable engine shall be activated with a flag
USE_CONFIGURABLE_AUDIO_POLICY within BoardConfig.mk

This patch provides the generic configuration as an example.
This configuration provides the same user experience as the default
policy engine.

Change-Id: Ic8217333ae370b89bfdd2ad11320c5f14ea4da34
Signed-off-by: François Gaffie <francois.gaffie@intel.com>

1 files changed, 69 insertions, 0 deletions

diff --git a/services/audiopolicy/engineconfigurable/src/InputSource.cpp b/services/audiopolicy/engineconfigurable/src/InputSource.cpp
new file mode 100755
index 0000000..9ff1538
--- /dev/null
+++ b/services/audiopolicy/engineconfigurable/src/InputSource.cpp
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2015 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 "APM::AudioPolicyEngine/InputSource"
+
+#include "InputSource.h"
+
+using std::string;
+
+namespace android
+{
+namespace audio_policy
+{
+status_t Element<audio_source_t>::setIdentifier(audio_source_t identifier)
+{
+    if (identifier > AUDIO_SOURCE_MAX && identifier != AUDIO_SOURCE_HOTWORD) {
+        return BAD_VALUE;
+    }
+    mIdentifier = identifier;
+    ALOGD("%s: InputSource %s identifier 0x%X", __FUNCTION__, getName().c_str(), identifier);
+    return NO_ERROR;
+}
+
+/**
+* Set the device associated to this source.
+* It checks if the input device is valid but allows to set a NONE device
+* (i.e. only the IN BIT is set).
+*
+* @param[in] devices selected for the given input source.
+* @tparam audio_devices_t: Applicable input device for this input source.
+*
+* @return NO_ERROR if the device is either valid or none, error code otherwise.
+*/
+template <>
+status_t Element<audio_source_t>::set(audio_devices_t devices)
+{
+    if (!audio_is_input_device(devices) && devices != AUDIO_DEVICE_BIT_IN) {
+        ALOGE("%s: trying to set an invalid device 0x%X for input source %s",
+              __FUNCTION__, devices, getName().c_str());
+        return BAD_VALUE;
+    }
+    ALOGD("%s: 0x%X for input source %s", __FUNCTION__, devices, getName().c_str());
+    mApplicableDevices = devices;
+    return NO_ERROR;
+}
+
+template <>
+audio_devices_t Element<audio_source_t>::get<audio_devices_t>() const
+{
+    ALOGV("%s: 0x%X for inputSource %s", __FUNCTION__, mApplicableDevices, getName().c_str());
+    return mApplicableDevices;
+}
+} // namespace audio_policy
+} // namespace android
+
+