blob: 8a674d0149c5fa0b820c8b393d7092304246ebed [file] [log] [blame]
/*
* Copyright (C) 2014 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.
*/
#define LOG_TAG "VoldCheckBattery"
#include <cutils/log.h>
#include <binder/IServiceManager.h>
#include <batteryservice/IBatteryPropertiesRegistrar.h>
using namespace android;
namespace
{
// How often to check battery in seconds
const int CHECK_PERIOD = 30;
const String16 serviceName("batteryproperties");
sp<IBinder> bs;
sp<IBatteryPropertiesRegistrar> interface;
bool singletonInitialized = false;
time_t last_checked = {0};
int battery_ok = 1;
}
extern "C" int is_battery_ok()
{
time_t now = time(NULL);
if (now == -1 || difftime(now, last_checked) < 5) {
return battery_ok;
}
last_checked = now;
if (!singletonInitialized) {
bs = defaultServiceManager()->checkService(serviceName);
if (bs == NULL) {
SLOGE("No batteryproperties service!");
return 1;
}
interface = interface_cast<IBatteryPropertiesRegistrar>(bs);
if (interface == NULL) {
SLOGE("No IBatteryPropertiesRegistrar interface");
return 1;
}
singletonInitialized = true;
}
BatteryProperty val;
status_t status = interface->getProperty(android::BATTERY_PROP_CAPACITY,
&val);
if (status == NO_ERROR) {
SLOGD("Capacity is %d", (int)val.valueInt64);
battery_ok = val.valueInt64 > 5 ? 1 : 0;
} else {
SLOGE("Failed to get battery charge");
battery_ok = 1;
}
return battery_ok;
}