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      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/InputSource"
     18 
     19 #include "InputSource.h"
     20 
     21 using std::string;
     22 
     23 namespace android
     24 {
     25 namespace audio_policy
     26 {
     27 status_t Element<audio_source_t>::setIdentifier(audio_source_t identifier)
     28 {
     29     if (identifier > AUDIO_SOURCE_MAX && identifier != AUDIO_SOURCE_HOTWORD) {
     30         return BAD_VALUE;
     31     }
     32     mIdentifier = identifier;
     33     ALOGD("%s: InputSource %s identifier 0x%X", __FUNCTION__, getName().c_str(), identifier);
     34     return NO_ERROR;
     35 }
     36 
     37 /**
     38 * Set the device associated to this source.
     39 * It checks if the input device is valid.
     40 *
     41 * @param[in] devices selected for the given input source.
     42 * @tparam audio_devices_t: Applicable input device for this input source.
     43 *
     44 * @return NO_ERROR if the device is either valid or none, error code otherwise.
     45 */
     46 template <>
     47 status_t Element<audio_source_t>::set(audio_devices_t devices)
     48 {
     49     if (devices != AUDIO_DEVICE_NONE) {
     50         devices |= AUDIO_DEVICE_BIT_IN;
     51     }
     52     if (!audio_is_input_device(devices)) {
     53         ALOGE("%s: trying to set an invalid device 0x%X for input source %s",
     54               __FUNCTION__, devices, getName().c_str());
     55         return BAD_VALUE;
     56     }
     57     ALOGD("%s: 0x%X for input source %s", __FUNCTION__, devices, getName().c_str());
     58     mApplicableDevices = devices;
     59     return NO_ERROR;
     60 }
     61 
     62 template <>
     63 audio_devices_t Element<audio_source_t>::get<audio_devices_t>() const
     64 {
     65     ALOGV("%s: 0x%X for inputSource %s", __FUNCTION__, mApplicableDevices, getName().c_str());
     66     return mApplicableDevices;
     67 }
     68 } // namespace audio_policy
     69 } // namespace android
     70 
     71 
     72