| /* |
| * 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); |
| } |