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/*
* Copyright (C) 2021 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.
*/
#include <fcntl.h>
#include <unistd.h>
#include <algorithm>
#include <HidlUtils.h>
#include <system/audio.h>
#include <system/audio_config.h>
#include "DeviceManager.h"
#include "PolicyConfig.h"
#include "common/all-versions/HidlSupport.h"
using ::android::NO_ERROR;
using ::android::OK;
using namespace ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION;
using namespace ::android::hardware::audio::CORE_TYPES_CPP_VERSION;
using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::implementation::HidlUtils;
using ::android::hardware::audio::common::utils::splitString;
namespace xsd {
using namespace ::android::audio::policy::configuration::CPP_VERSION;
using Module = Modules::Module;
} // namespace xsd
std::string PolicyConfig::getError() const {
if (mFilePath.empty()) {
return "Could not find " + mConfigFileName +
" file in: " + testing::PrintToString(android::audio_get_configuration_paths());
} else {
return "Invalid config file: " + mFilePath;
}
}
const xsd::Module* PolicyConfig::getModuleFromName(const std::string& name) const {
if (mConfig && mConfig->getFirstModules()) {
for (const auto& module : mConfig->getFirstModules()->get_module()) {
if (module.getName() == name) return &module;
}
}
return nullptr;
}
std::optional<DeviceAddress> PolicyConfig::getSinkDeviceForMixPort(
const std::string& moduleName, const std::string& mixPortName) const {
std::string device;
if (auto module = getModuleFromName(moduleName); module) {
auto possibleDevices = getSinkDevicesForMixPort(moduleName, mixPortName);
if (module->hasDefaultOutputDevice() &&
possibleDevices.count(module->getDefaultOutputDevice())) {
device = module->getDefaultOutputDevice();
} else {
device = getAttachedSinkDeviceForMixPort(moduleName, mixPortName);
}
}
if (!device.empty()) {
return getDeviceAddressOfDevicePort(moduleName, device);
}
ALOGE("Could not find a route for the mix port \"%s\" in module \"%s\"", mixPortName.c_str(),
moduleName.c_str());
return std::optional<DeviceAddress>{};
}
std::optional<DeviceAddress> PolicyConfig::getSourceDeviceForMixPort(
const std::string& moduleName, const std::string& mixPortName) const {
const std::string device = getAttachedSourceDeviceForMixPort(moduleName, mixPortName);
if (!device.empty()) {
return getDeviceAddressOfDevicePort(moduleName, device);
}
ALOGE("Could not find a route for the mix port \"%s\" in module \"%s\"", mixPortName.c_str(),
moduleName.c_str());
return std::optional<DeviceAddress>{};
}
bool PolicyConfig::haveInputProfilesInModule(const std::string& name) const {
auto module = getModuleFromName(name);
if (module && module->getFirstMixPorts()) {
for (const auto& mixPort : module->getFirstMixPorts()->getMixPort()) {
if (mixPort.getRole() == xsd::Role::sink) return true;
}
}
return false;
}
// static
std::string PolicyConfig::findExistingConfigurationFile(const std::string& fileName) {
for (const auto& location : android::audio_get_configuration_paths()) {
std::string path = location + '/' + fileName;
if (access(path.c_str(), F_OK) == 0) {
return path;
}
}
return {};
}
std::string PolicyConfig::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 {};
}
const std::vector<std::string>& PolicyConfig::getAttachedDevices(
const std::string& moduleName) const {
static const std::vector<std::string> empty;
auto module = getModuleFromName(moduleName);
if (module && module->getFirstAttachedDevices()) {
return module->getFirstAttachedDevices()->getItem();
}
return empty;
}
std::optional<DeviceAddress> PolicyConfig::getDeviceAddressOfDevicePort(
const std::string& moduleName, const std::string& devicePortName) const {
auto module = getModuleFromName(moduleName);
if (module->getFirstDevicePorts()) {
const auto& devicePorts = module->getFirstDevicePorts()->getDevicePort();
const auto& devicePort = std::find_if(
devicePorts.begin(), devicePorts.end(),
[&devicePortName](auto dp) { return dp.getTagName() == devicePortName; });
if (devicePort != devicePorts.end()) {
audio_devices_t halDeviceType;
if (HidlUtils::audioDeviceTypeToHal(devicePort->getType(), &halDeviceType) ==
NO_ERROR) {
// For AOSP device types use the standard parser for the device address.
const std::string address =
devicePort->hasAddress() ? devicePort->getAddress() : "";
DeviceAddress result;
if (HidlUtils::deviceAddressFromHal(halDeviceType, address.c_str(), &result) ==
NO_ERROR) {
return result;
}
} else if (xsd::isVendorExtension(devicePort->getType())) {
DeviceAddress result;
result.deviceType = devicePort->getType();
if (devicePort->hasAddress()) {
result.address.id(devicePort->getAddress());
}
return result;
}
} else {
ALOGE("Device port \"%s\" not found in module \"%s\"", devicePortName.c_str(),
moduleName.c_str());
}
} else {
ALOGE("Module \"%s\" has no device ports", moduleName.c_str());
}
return std::optional<DeviceAddress>{};
}
std::set<std::string> PolicyConfig::getSinkDevicesForMixPort(const std::string& moduleName,
const std::string& mixPortName) const {
std::set<std::string> result;
auto module = getModuleFromName(moduleName);
if (module && module->getFirstRoutes()) {
for (const auto& route : module->getFirstRoutes()->getRoute()) {
const auto sources = splitString(route.getSources(), ',');
if (std::find(sources.begin(), sources.end(), mixPortName) != sources.end()) {
result.insert(route.getSink());
}
}
}
return result;
}
std::set<std::string> PolicyConfig::getSourceDevicesForMixPort(
const std::string& moduleName, const std::string& mixPortName) const {
std::set<std::string> result;
auto module = getModuleFromName(moduleName);
if (module && module->getFirstRoutes()) {
const auto& routes = module->getFirstRoutes()->getRoute();
const auto route = std::find_if(routes.begin(), routes.end(), [&mixPortName](auto rte) {
return rte.getSink() == mixPortName;
});
if (route != routes.end()) {
const auto sources = splitString(route->getSources(), ',');
std::copy(sources.begin(), sources.end(), std::inserter(result, result.end()));
}
}
return result;
}
void PolicyConfig::init() {
if (mConfig) {
mStatus = OK;
mPrimaryModule = getModuleFromName(DeviceManager::kPrimaryDevice);
if (mConfig->getFirstModules()) {
for (const auto& module : mConfig->getFirstModules()->get_module()) {
if (module.getFirstAttachedDevices()) {
auto attachedDevices = module.getFirstAttachedDevices()->getItem();
if (!attachedDevices.empty()) {
mModulesWithDevicesNames.insert(module.getName());
}
}
}
}
}
}
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