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
21using std::string;
22
23namespace android
24{
25namespace audio_policy
26{
27
28status_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 but allows to set a NONE device
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 */
46template <>
47status_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
59template <>
60audio_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