mirror of
https://github.com/Evolution-X/hardware_interfaces
synced 2026-02-03 08:54:55 +00:00
a76a2bf65b
For the core variant (system), clients like storaged etc. should no longer access the "backup" instance, because healthd is removed from the system image. For the vendor variant, this would only break if a vendor image were launched with Android O / O-MR1 (so health@2.0 is not required), and were compiled against an Android T (and above) source tree (which won't check the "backup" instance). This shouldn't be a valid configuration. For the recovery variant, the "backup" instance has a different meaning. It points to android.hardware.health@2.0-impl-default.recovery ... which was assumed by OEMs to be always installed when a vendor-specific libhealthd is not necessary. Hence, its behavior is kept. See hardware/interfaces/health/2.0/README.md android.hardware.health@2.0-impl-default.recovery, and subsequently the special handling of recovery mode below, can be removed once health@2.1 is the minimum required version (i.e. compatibility matrix level 3 is removed). Health 2.1 requires OEMs to install the implementation to the recovery partition when it is necessary (i.e. on non-A/B devices, where IsBatteryOk() is needed in recovery). Test: pass Bug: 203245871 Change-Id: Ife14f5bdaba20e4cf5bd0b954aea4d04a62009c4
61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
/*
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* Copyright (C) 2018 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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#define LOG_TAG "HealthHalUtils"
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#include <android-base/logging.h>
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#include <healthhalutils/HealthHalUtils.h>
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namespace android {
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namespace hardware {
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namespace health {
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namespace V2_0 {
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sp<IHealth> get_health_service() {
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// For the core and vendor variant, the "backup" instance points to healthd,
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// which is removed.
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// For the recovery variant, the "backup" instance has a different
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// meaning. It points to android.hardware.health@2.0-impl-default.recovery
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// which was assumed by OEMs to be always installed when a
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// vendor-specific libhealthd is not necessary. Hence, its behavior
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// is kept. See health/2.0/README.md.
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// android.hardware.health@2.0-impl-default.recovery, and subsequently the
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// special handling of recovery mode below, can be removed once health@2.1
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// is the minimum required version (i.e. compatibility matrix level 5 is the
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// minimum supported level). Health 2.1 requires OEMs to install the
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// implementation to the recovery partition when it is necessary (i.e. on
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// non-A/B devices, where IsBatteryOk() is needed in recovery).
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for (auto&& instanceName :
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#ifdef __ANDROID_RECOVERY__
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{ "default", "backup" }
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#else
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{"default"}
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#endif
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) {
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auto ret = IHealth::getService(instanceName);
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if (ret != nullptr) {
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return ret;
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}
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LOG(INFO) << "health: cannot get " << instanceName << " service";
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}
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return nullptr;
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}
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} // namespace V2_0
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} // namespace health
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} // namespace hardware
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} // namespace android
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