| Jiabin Huang | ebe6410 | 2021-09-07 20:01:07 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2021 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 <aaudio/AAudio.h> |
| 18 | #include <aaudio/AAudioTesting.h> |
| 19 | #include <android/media/AudioMMapPolicy.h> |
| 20 | #include <cutils/properties.h> |
| 21 | |
| 22 | #include "PropertyUtils.h" |
| 23 | |
| 24 | namespace android { |
| 25 | |
| 26 | std::string getMmapPolicyProperty(media::AudioMMapPolicyType policyType) { |
| 27 | switch (policyType) { |
| 28 | case media::AudioMMapPolicyType::DEFAULT: |
| 29 | return "aaudio.mmap_policy"; |
| 30 | case media::AudioMMapPolicyType::EXCLUSIVE: |
| 31 | return "aaudio.mmap_exclusive_policy"; |
| 32 | default: |
| 33 | return ""; |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | int getDefaultPolicyFromType(media::AudioMMapPolicyType policyType) { |
| 38 | switch (policyType) { |
| 39 | case media::AudioMMapPolicyType::EXCLUSIVE: |
| 40 | return AAUDIO_UNSPECIFIED; |
| 41 | case media::AudioMMapPolicyType::DEFAULT: |
| 42 | default: |
| 43 | return AAUDIO_POLICY_NEVER; |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | media::AudioMMapPolicy legacy2aidl_aaudio_policy_t_AudioMMapPolicy(aaudio_policy_t legacy) { |
| 48 | switch (legacy) { |
| 49 | case AAUDIO_POLICY_NEVER: |
| 50 | return media::AudioMMapPolicy::NEVER; |
| 51 | case AAUDIO_POLICY_AUTO: |
| 52 | return media::AudioMMapPolicy::AUTO; |
| 53 | case AAUDIO_POLICY_ALWAYS: |
| 54 | return media::AudioMMapPolicy::ALWAYS; |
| 55 | case AAUDIO_UNSPECIFIED: |
| 56 | return media::AudioMMapPolicy::UNSPECIFIED; |
| 57 | default: |
| 58 | ALOGE("%s unknown aaudio policy: %d", __func__, legacy); |
| 59 | return media::AudioMMapPolicy::UNSPECIFIED; |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | status_t getMmapPolicyInfosFromSystemProperty( |
| 64 | media::AudioMMapPolicyType policyType, |
| 65 | std::vector<media::AudioMMapPolicyInfo> *policyInfos) { |
| 66 | media::AudioMMapPolicyInfo policyInfo; |
| 67 | const std::string propertyStr = getMmapPolicyProperty(policyType); |
| 68 | if (propertyStr.empty()) { |
| 69 | return BAD_VALUE; |
| 70 | } |
| 71 | policyInfo.mmapPolicy = legacy2aidl_aaudio_policy_t_AudioMMapPolicy( |
| 72 | property_get_int32(propertyStr.c_str(), getDefaultPolicyFromType(policyType))); |
| 73 | policyInfos->push_back(policyInfo); |
| 74 | return NO_ERROR; |
| 75 | } |
| 76 | |
| 77 | } // namespace android |