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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 but allows to set a NONE device
     40 * (i.e. only the IN BIT is set).
     41 *
     42 * @param[in] devices selected for the given input source.
     43 * @tparam audio_devices_t: Applicable input device for this input source.
     44 *
     45 * @return NO_ERROR if the device is either valid or none, error code otherwise.
     46 */
     47 template <>
     48 status_t Element<audio_source_t>::set(audio_devices_t devices)
     49 {
     50     if (!audio_is_input_device(devices) && devices != AUDIO_DEVICE_BIT_IN) {
     51         ALOGE("%s: trying to set an invalid device 0x%X for input source %s",
     52               __FUNCTION__, devices, getName().c_str());
     53         return BAD_VALUE;
     54     }
     55     ALOGD("%s: 0x%X for input source %s", __FUNCTION__, devices, getName().c_str());
     56     mApplicableDevices = devices;
     57     return NO_ERROR;
     58 }
     59 
     60 template <>
     61 audio_devices_t Element<audio_source_t>::get<audio_devices_t>() const
     62 {
     63     ALOGV("%s: 0x%X for inputSource %s", __FUNCTION__, mApplicableDevices, getName().c_str());
     64     return mApplicableDevices;
     65 }
     66 } // namespace audio_policy
     67 } // namespace android
     68 
     69 
     70