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/*
* 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.
*/
#include "VolumeProfile.h"
#include "PolicyMappingKeys.h"
#include "PolicySubsystem.h"
#include "ParameterBlockType.h"
#include <Volume.h>
#include <math.h>
using std::string;
VolumeProfile::VolumeProfile(const string &mappingValue,
CInstanceConfigurableElement *instanceConfigurableElement,
const CMappingContext &context)
: CFormattedSubsystemObject(instanceConfigurableElement,
mappingValue,
MappingKeyAmend1,
(MappingKeyAmendEnd - MappingKeyAmend1 + 1),
context),
mPolicySubsystem(static_cast<const PolicySubsystem *>(
instanceConfigurableElement->getBelongingSubsystem())),
mPolicyPluginInterface(mPolicySubsystem->getPolicyPluginInterface())
{
uint32_t categoryKey = context.getItemAsInteger(MappingKeyCategory);
if (categoryKey >= Volume::DEVICE_CATEGORY_CNT) {
mCategory = Volume::DEVICE_CATEGORY_SPEAKER;
} else {
mCategory = static_cast<Volume::device_category>(categoryKey);
}
mId = static_cast<audio_stream_type_t>(context.getItemAsInteger(MappingKeyIdentifier));
// (no exception support, defer the error)
if (instanceConfigurableElement->getType() != CInstanceConfigurableElement::EParameterBlock) {
return;
}
// Get actual element type
const CParameterBlockType *parameterType = static_cast<const CParameterBlockType *>(
instanceConfigurableElement->getTypeElement());
mPoints = parameterType->getArrayLength();
}
bool VolumeProfile::receiveFromHW(string & /*error*/)
{
return true;
}
bool VolumeProfile::sendToHW(string & /*error*/)
{
Point points[mPoints];
blackboardRead(&points, sizeof(Point) * mPoints);
VolumeCurvePoints pointsVector;
for (size_t i = 0; i < mPoints; i++) {
VolumeCurvePoint curvePoint;
curvePoint.mIndex = points[i].index;
curvePoint.mDBAttenuation = static_cast<float>(points[i].dbAttenuation) /
(1UL << gFractional);
pointsVector.push_back(curvePoint);
}
return mPolicyPluginInterface->setVolumeProfileForStream(mId, mCategory, pointsVector);
}
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