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/*
* Copyright (C) 2018 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 "src/android_internal/health_hal.h"
#include <android/hardware/health/2.0/IHealth.h>
#include <healthhalutils/HealthHalUtils.h>
namespace perfetto {
namespace android_internal {
using ::android::hardware::health::V2_0::IHealth;
using ::android::hardware::health::V2_0::Result;
namespace {
android::sp<IHealth> g_svc;
void ResetService() {
g_svc = ::android::hardware::health::V2_0::get_health_service();
}
} // namespace
bool GetBatteryCounter(BatteryCounter counter, int64_t* value) {
*value = 0;
if (!g_svc)
ResetService();
if (!g_svc)
return false;
// The Android VNDK documentation states that for blocking services, the
// caller blocks until the reply is received and the callback is called inline
// in the same thread.
// See https://source.android.com/devices/architecture/hidl/threading .
Result res;
switch (counter) {
case BatteryCounter::kUnspecified:
res = Result::NOT_FOUND;
break;
case BatteryCounter::kCharge:
g_svc->getChargeCounter([&res, value](Result hal_res, int32_t hal_value) {
res = hal_res;
*value = hal_value;
});
break;
case BatteryCounter::kCapacityPercent:
g_svc->getCapacity([&res, value](Result hal_res, int64_t hal_value) {
res = hal_res;
*value = hal_value;
});
break;
case BatteryCounter::kCurrent:
g_svc->getCurrentNow([&res, value](Result hal_res, int32_t hal_value) {
res = hal_res;
*value = hal_value;
});
break;
case BatteryCounter::kCurrentAvg:
g_svc->getCurrentAverage(
[&res, value](Result hal_res, int32_t hal_value) {
res = hal_res;
*value = hal_value;
});
break;
} // switch(counter)
if (res == Result::CALLBACK_DIED)
g_svc.clear();
return res == Result::SUCCESS;
}
} // namespace android_internal
} // namespace perfetto
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