Home | History | Annotate | Download | only in src 
      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 #define LOG_TAG "APM::AudioPolicyEngine/Strategy"
     18 
     19 #include "Strategy.h"
     20 
     21 using std::string;
     22 
     23 namespace android
     24 {
     25 namespace audio_policy
     26 {
     27 
     28 status_t Element<routing_strategy>::setIdentifier(routing_strategy identifier)
     29 {
     30     if (identifier >= NUM_STRATEGIES) {
     31         return BAD_VALUE;
     32     }
     33     mIdentifier = identifier;
     34     ALOGD("%s: Strategy %s identifier 0x%X", __FUNCTION__, getName().c_str(), identifier);
     35     return NO_ERROR;
     36 }
     37 
     38 /**
     39  * Set the device associated to this strategy.
     40  * It checks if the output device is valid.
     41  *
     42  * @param[in] devices selected for the given strategy.
     43  *
     44  * @return NO_ERROR if the device is either valid or none, error code otherwise.
     45  */
     46 template <>
     47 status_t Element<routing_strategy>::set<audio_devices_t>(audio_devices_t devices)
     48 {
     49     if (!audio_is_output_devices(devices) || devices == AUDIO_DEVICE_NONE) {
     50         ALOGE("%s: trying to set an invalid device 0x%X for strategy %s",
     51               __FUNCTION__, devices, getName().c_str());
     52         return BAD_VALUE;
     53     }
     54     ALOGD("%s: 0x%X for strategy %s", __FUNCTION__, devices, getName().c_str());
     55     mApplicableDevices = devices;
     56     return NO_ERROR;
     57 }
     58 
     59 template <>
     60 audio_devices_t Element<routing_strategy>::get<audio_devices_t>() const
     61 {
     62     ALOGV("%s: 0x%X for strategy %s", __FUNCTION__, mApplicableDevices, getName().c_str());
     63     return mApplicableDevices;
     64 }
     65 
     66 } // namespace audio_policy
     67 } // namespace android
     68 
     69