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/*
* Copyright (C) 2008 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.
*/
package com.android.commands.svc;
import android.content.Context;
import android.os.BatteryManager;
import android.os.IPowerManager;
import android.os.PowerManager;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.sysprop.InitProperties;
public class PowerCommand extends Svc.Command {
private static final int FORCE_SUSPEND_DELAY_DEFAULT_MILLIS = 0;
public PowerCommand() {
super("power");
}
public String shortHelp() {
return "Control the power manager";
}
public String longHelp() {
return shortHelp() + "\n"
+ "\n"
+ "usage: svc power stayon [true|false|usb|ac|wireless|dock]\n"
+ " Set the 'keep awake while plugged in' setting.\n"
+ " svc power reboot [reason]\n"
+ " Perform a runtime shutdown and reboot device with specified reason.\n"
+ " svc power shutdown\n"
+ " Perform a runtime shutdown and power off the device.\n"
+ " svc power forcesuspend [t]\n"
+ " Force the system into suspend, ignoring all wakelocks.\n"
+ " t - Number of milliseconds to wait before issuing force-suspend.\n"
+ " Helps with devices that can't suspend while plugged in.\n"
+ " Defaults to " + FORCE_SUSPEND_DELAY_DEFAULT_MILLIS + ".\n"
+ " When using a delay, you must use the nohup shell modifier:\n"
+ " 'adb shell nohup svc power forcesuspend [time]'\n"
+ " Use caution; this is dangerous. It puts the device to sleep\n"
+ " immediately without giving apps or the system an opportunity to\n"
+ " save their state.\n";
}
public void run(String[] args) {
fail: {
if (args.length >= 2) {
IPowerManager pm = IPowerManager.Stub.asInterface(
ServiceManager.getService(Context.POWER_SERVICE));
if ("stayon".equals(args[1]) && args.length == 3) {
int val;
if ("true".equals(args[2])) {
val = BatteryManager.BATTERY_PLUGGED_AC
| BatteryManager.BATTERY_PLUGGED_USB
| BatteryManager.BATTERY_PLUGGED_WIRELESS
| BatteryManager.BATTERY_PLUGGED_DOCK;
}
else if ("false".equals(args[2])) {
val = 0;
} else if ("usb".equals(args[2])) {
val = BatteryManager.BATTERY_PLUGGED_USB;
} else if ("ac".equals(args[2])) {
val = BatteryManager.BATTERY_PLUGGED_AC;
} else if ("wireless".equals(args[2])) {
val = BatteryManager.BATTERY_PLUGGED_WIRELESS;
} else if ("dock".equals(args[2])) {
val = BatteryManager.BATTERY_PLUGGED_DOCK;
} else {
break fail;
}
try {
if (val != 0) {
// if the request is not to set it to false, wake up the screen so that
// it can stay on as requested
pm.wakeUp(SystemClock.uptimeMillis(),
PowerManager.WAKE_REASON_UNKNOWN, "PowerCommand", null);
}
pm.setStayOnSetting(val);
}
catch (RemoteException e) {
System.err.println("Faild to set setting: " + e);
}
return;
} else if ("reboot".equals(args[1])) {
String mode = null;
if (args.length == 3) {
mode = args[2];
}
try {
// no confirm, wait till device is rebooted
pm.reboot(false, mode, true);
} catch (RemoteException e) {
maybeLogRemoteException("Failed to reboot.");
} catch (Exception e) {
System.err.println("Failed to reboot: " + e.getMessage());
}
return;
} else if ("shutdown".equals(args[1])) {
try {
// no confirm, wait till device is off
pm.shutdown(false, null, true);
} catch (RemoteException e) {
maybeLogRemoteException("Failed to shutdown.");
}
return;
} else if ("forcesuspend".equals(args[1])) {
int delayMillis = args.length > 2
? Integer.parseInt(args[2]) : FORCE_SUSPEND_DELAY_DEFAULT_MILLIS;
try {
Thread.sleep(delayMillis);
if (!pm.forceSuspend()) {
System.err.println("Failed to force suspend.");
}
} catch (InterruptedException e) {
System.err.println("Failed to force suspend: " + e);
} catch (RemoteException e) {
maybeLogRemoteException("Failed to force-suspend with exception: " + e);
}
return;
}
}
}
System.err.println(longHelp());
}
// Check if remote exception is benign during shutdown. Pm can be killed
// before system server during shutdown, so remote exception can be ignored
// if it is already in shutdown flow.
private void maybeLogRemoteException(String msg) {
String powerProp = SystemProperties.get("sys.powerctl");
// Also check if userspace reboot is ongoing, since in case of userspace reboot value of the
// sys.powerctl property will be reset.
if (powerProp.isEmpty() && !InitProperties.userspace_reboot_in_progress().orElse(false)) {
System.err.println(msg);
}
}
}
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