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/*
* Copyright (C) 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <set>
#include <string>
#include <DeviceDescriptor.h>
#include <HwModule.h>
#include <Serializer.h>
#include <gtest/gtest.h>
#include <system/audio_config.h>
#include "DeviceManager.h"
using ::android::sp;
using ::android::status_t;
struct PolicyConfigData {
android::HwModuleCollection hwModules;
android::DeviceVector availableOutputDevices;
android::DeviceVector availableInputDevices;
sp<android::DeviceDescriptor> defaultOutputDevice;
};
class PolicyConfig : private PolicyConfigData, public android::AudioPolicyConfig {
public:
explicit PolicyConfig(const std::string& configFileName)
: android::AudioPolicyConfig(hwModules, availableOutputDevices, availableInputDevices,
defaultOutputDevice),
mConfigFileName{configFileName} {
for (const auto& location : android::audio_get_configuration_paths()) {
std::string path = location + '/' + mConfigFileName;
if (access(path.c_str(), F_OK) == 0) {
mFilePath = path;
break;
}
}
init();
}
PolicyConfig(const std::string& configPath, const std::string& configFileName)
: android::AudioPolicyConfig(hwModules, availableOutputDevices, availableInputDevices,
defaultOutputDevice),
mConfigFileName{configFileName},
mFilePath{configPath + "/" + mConfigFileName} {
init();
}
status_t getStatus() const { return mStatus; }
std::string getError() const {
if (mFilePath.empty()) {
return std::string{"Could not find "} + mConfigFileName +
" file in: " + testing::PrintToString(android::audio_get_configuration_paths());
} else {
return "Invalid config file: " + mFilePath;
}
}
const std::string& getFilePath() const { return mFilePath; }
sp<const android::HwModule> getModuleFromName(const std::string& name) const {
return getHwModules().getModuleFromName(name.c_str());
}
sp<const android::HwModule> getPrimaryModule() const { return mPrimaryModule; }
const std::set<std::string>& getModulesWithDevicesNames() const {
return mModulesWithDevicesNames;
}
std::string getAttachedSinkDeviceForMixPort(const std::string& moduleName,
const std::string& mixPortName) const {
return findAttachedDevice(getAttachedDevices(moduleName),
getSinkDevicesForMixPort(moduleName, mixPortName));
}
std::string getAttachedSourceDeviceForMixPort(const std::string& moduleName,
const std::string& mixPortName) const {
return findAttachedDevice(getAttachedDevices(moduleName),
getSourceDevicesForMixPort(moduleName, mixPortName));
}
bool haveInputProfilesInModule(const std::string& name) const {
auto module = getModuleFromName(name);
return module && !module->getInputProfiles().empty();
}
private:
void init() {
mStatus = android::deserializeAudioPolicyFileForVts(mFilePath.c_str(), this);
if (mStatus == android::OK) {
mPrimaryModule = getModuleFromName(DeviceManager::kPrimaryDevice);
// Available devices are not 'attached' to modules at this moment.
// Need to go over available devices and find their module.
for (const auto& device : availableOutputDevices) {
for (const auto& module : hwModules) {
if (module->getDeclaredDevices().indexOf(device) >= 0) {
mModulesWithDevicesNames.insert(module->getName());
mAttachedDevicesPerModule[module->getName()].push_back(
device->getTagName());
break;
}
}
}
for (const auto& device : availableInputDevices) {
for (const auto& module : hwModules) {
if (module->getDeclaredDevices().indexOf(device) >= 0) {
mModulesWithDevicesNames.insert(module->getName());
mAttachedDevicesPerModule[module->getName()].push_back(
device->getTagName());
break;
}
}
}
}
}
std::string findAttachedDevice(const std::vector<std::string>& attachedDevices,
const std::set<std::string>& possibleDevices) const {
for (const auto& device : attachedDevices) {
if (possibleDevices.count(device)) return device;
}
return {};
}
std::vector<std::string> getAttachedDevices(const std::string& moduleName) const {
if (auto iter = mAttachedDevicesPerModule.find(moduleName);
iter != mAttachedDevicesPerModule.end()) {
return iter->second;
}
return {};
}
std::set<std::string> getSinkDevicesForMixPort(const std::string& moduleName,
const std::string& mixPortName) const {
std::set<std::string> result;
auto module = getModuleFromName(moduleName);
if (module != nullptr) {
for (const auto& route : module->getRoutes()) {
for (const auto& source : route->getSources()) {
if (source->getTagName() == mixPortName) {
result.insert(route->getSink()->getTagName());
}
}
}
}
return result;
}
std::set<std::string> getSourceDevicesForMixPort(const std::string& moduleName,
const std::string& mixPortName) const {
std::set<std::string> result;
auto module = getModuleFromName(moduleName);
if (module != nullptr) {
for (const auto& route : module->getRoutes()) {
if (route->getSink()->getTagName() == mixPortName) {
const auto& sources = route->getSources();
std::transform(sources.begin(), sources.end(),
std::inserter(result, result.end()),
[](const auto& source) { return source->getTagName(); });
}
}
}
return result;
}
const std::string mConfigFileName;
status_t mStatus = android::NO_INIT;
std::string mFilePath;
sp<const android::HwModule> mPrimaryModule = nullptr;
std::set<std::string> mModulesWithDevicesNames;
std::map<std::string, std::vector<std::string>> mAttachedDevicesPerModule;
};
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