1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "InputSource.h"
18 #include "PolicyMappingKeys.h"
19 #include "PolicySubsystem.h"
20
21 using std::string;
22
InputSource(const string & mappingValue,CInstanceConfigurableElement * instanceConfigurableElement,const CMappingContext & context)23 InputSource::InputSource(const string &mappingValue,
24 CInstanceConfigurableElement *instanceConfigurableElement,
25 const CMappingContext &context)
26 : CFormattedSubsystemObject(instanceConfigurableElement,
27 mappingValue,
28 MappingKeyAmend1,
29 (MappingKeyAmendEnd - MappingKeyAmend1 + 1),
30 context),
31 mPolicySubsystem(static_cast<const PolicySubsystem *>(
32 instanceConfigurableElement->getBelongingSubsystem())),
33 mPolicyPluginInterface(mPolicySubsystem->getPolicyPluginInterface()),
34 mApplicableInputDevice(mDefaultApplicableInputDevice)
35 {
36 mId = static_cast<audio_source_t>(context.getItemAsInteger(MappingKeyIdentifier));
37 // Declares the strategy to audio policy engine
38 mPolicyPluginInterface->addInputSource(getFormattedMappingValue(), mId);
39 }
40
receiveFromHW(string &)41 bool InputSource::receiveFromHW(string & /*error*/)
42 {
43 blackboardWrite(&mApplicableInputDevice, sizeof(mApplicableInputDevice));
44 return true;
45 }
46
sendToHW(string &)47 bool InputSource::sendToHW(string & /*error*/)
48 {
49 uint32_t applicableInputDevice;
50 blackboardRead(&applicableInputDevice, sizeof(applicableInputDevice));
51 mApplicableInputDevice = applicableInputDevice;
52 return mPolicyPluginInterface->setDeviceForInputSource(mId, mApplicableInputDevice);
53 }
54