1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.power; 18 19 import android.content.Intent; 20 import android.os.IPowerManager; 21 import android.os.RemoteException; 22 import android.os.ShellCommand; 23 24 import java.io.PrintWriter; 25 26 class PowerManagerShellCommand extends ShellCommand { 27 private static final int LOW_POWER_MODE_ON = 1; 28 29 final IPowerManager mInterface; 30 31 PowerManagerShellCommand(IPowerManager service) { 32 mInterface = service; 33 } 34 35 @Override 36 public int onCommand(String cmd) { 37 if (cmd == null) { 38 return handleDefaultCommands(cmd); 39 } 40 41 final PrintWriter pw = getOutPrintWriter(); 42 try { 43 switch(cmd) { 44 case "set-mode": 45 return runSetMode(); 46 default: 47 return handleDefaultCommands(cmd); 48 } 49 } catch (RemoteException e) { 50 pw.println("Remote exception: " + e); 51 } 52 return -1; 53 } 54 55 private int runSetMode() throws RemoteException { 56 final PrintWriter pw = getOutPrintWriter(); 57 int mode = -1; 58 try { 59 mode = Integer.parseInt(getNextArgRequired()); 60 } catch (RuntimeException ex) { 61 pw.println("Error: " + ex.toString()); 62 return -1; 63 } 64 mInterface.setPowerSaveMode(mode == LOW_POWER_MODE_ON); 65 return 0; 66 } 67 68 @Override 69 public void onHelp() { 70 final PrintWriter pw = getOutPrintWriter(); 71 pw.println("Power manager (power) commands:"); 72 pw.println(" help"); 73 pw.println(" Print this help text."); 74 pw.println(""); 75 pw.println(" set-mode MODE"); 76 pw.println(" sets the power mode of the device to MODE."); 77 pw.println(" 1 turns low power mode on and 0 turns low power mode off."); 78 pw.println(); 79 Intent.printIntentArgsHelp(pw , ""); 80 } 81 } 82