7dcf7b0639
Clean up charger's libhealthd dependency.
- Charger uses libhealthloop to maintain an infinite
loop, similar to all health 2.x services.
- Charger tries to open up health 2.1 HAL implementation
to retrieve health info. If it failed, it falls back
to the legacy code path where a default BatteryMonitor
is used, *except* that it won't depend on libhealthd's
healthd_board_init() and healthd_board_battery_update()
anymore.
- Remove global static variables because they are hard to
track.
- Modernize code by converting charger_state in to a C++
Charger class, transforming all functions into methods,
and moving all other global states into the class.
- Devices that matches all of the following:
- have a customized libhealthd (search for modules
named libhealthd.xxxx)
- uses charger from system image (look for "class charger"
in device init.rc scripts; if you see the binary is named
"/charger" or "/system/bin/charger" then you are using
charger from system image)
... must implement health 2.1 passthrough implementation
properly in order to have charger continue to work.
See hardware/interfaces/health/2.1/README.md for details.
Test: charger test
Test: manual charger mode
Bug: 127677771
Bug: 142286265
Change-Id: I0f26e5c1fe2be6b5952fc019224457c8419e43e4
68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "charger_utils.h"
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#include <android-base/logging.h>
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#include <android/hidl/manager/1.0/IServiceManager.h>
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#include <health/utils.h>
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#include <health2impl/Health.h>
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#include <hidl/ServiceManagement.h>
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using android::hardware::getPassthroughServiceManager;
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using android::hidl::base::V1_0::IBase;
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using android::hidl::manager::V1_0::IServiceManager;
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namespace android {
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namespace hardware {
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namespace health {
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sp<V2_1::IHealth> GetPassthroughHealthImpl() {
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// Not using getService() because there is no hwservicemanager in charger mode.
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sp<IServiceManager> pm = getPassthroughServiceManager();
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if (pm == nullptr) {
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LOG(WARNING) << "Cannot get passthrough service manager.";
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return nullptr;
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}
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sp<IBase> base = pm->get(V2_0::IHealth::descriptor, "default");
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if (base == nullptr) {
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LOG(WARNING) << "Cannot find passthrough implementation of health 2.0 HAL for instance "
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"'default' on the device.";
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return nullptr;
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}
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sp<V2_1::IHealth> service = V2_1::IHealth::castFrom(base);
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if (service == nullptr) {
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LOG(WARNING)
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<< "Cannot cast passthrough implementation of health 2.0 HAL to 2.1 for instance "
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"'default' on the device.";
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return nullptr;
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}
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return service;
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}
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sp<V2_1::IHealth> GetPassthroughHealth() {
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auto impl = GetPassthroughHealthImpl();
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if (impl == nullptr) {
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LOG(WARNING) << "Charger uses system defaults.";
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auto config = std::make_unique<healthd_config>();
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InitHealthdConfig(config.get());
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impl = new V2_1::implementation::Health(std::move(config));
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}
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return impl;
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}
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} // namespace health
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} // namespace hardware
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} // namespace android
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