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      1 /*
      2  * Copyright (C) 2008 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.commands.svc;
     18 
     19 import android.content.Context;
     20 import android.hardware.usb.IUsbManager;
     21 import android.hardware.usb.UsbManager;
     22 import android.os.RemoteException;
     23 import android.os.ServiceManager;
     24 
     25 public class UsbCommand extends Svc.Command {
     26     public UsbCommand() {
     27         super("usb");
     28     }
     29 
     30     @Override
     31     public String shortHelp() {
     32         return "Control Usb state";
     33     }
     34 
     35     @Override
     36     public String longHelp() {
     37         return shortHelp() + "\n"
     38                 + "\n"
     39                 + "usage: svc usb setFunctions [function]\n"
     40                 + "         Set the current usb function. If function is blank, sets to charging.\n"
     41                 + "       svc usb setScreenUnlockedFunctions [function]\n"
     42                 + "         Sets the functions which, if the device was charging, become current on"
     43                     + "screen unlock. If function is blank, turn off this feature.\n"
     44                 + "       svc usb getFunctions\n"
     45                 + "          Gets the list of currently enabled functions\n\n"
     46                 + "possible values of [function] are any of 'mtp', 'ptp', 'rndis', 'midi'\n";
     47     }
     48 
     49     @Override
     50     public void run(String[] args) {
     51         if (args.length >= 2) {
     52             IUsbManager usbMgr = IUsbManager.Stub.asInterface(ServiceManager.getService(
     53                     Context.USB_SERVICE));
     54             if ("setFunctions".equals(args[1])) {
     55                 try {
     56                     usbMgr.setCurrentFunctions(UsbManager.usbFunctionsFromString(
     57                             args.length >= 3 ? args[2] : ""));
     58                 } catch (RemoteException e) {
     59                     System.err.println("Error communicating with UsbManager: " + e);
     60                 }
     61                 return;
     62             } else if ("getFunctions".equals(args[1])) {
     63                 try {
     64                     System.err.println(
     65                             UsbManager.usbFunctionsToString(usbMgr.getCurrentFunctions()));
     66                 } catch (RemoteException e) {
     67                     System.err.println("Error communicating with UsbManager: " + e);
     68                 }
     69                 return;
     70             } else if ("setScreenUnlockedFunctions".equals(args[1])) {
     71                 try {
     72                     usbMgr.setScreenUnlockedFunctions(UsbManager.usbFunctionsFromString(
     73                             args.length >= 3 ? args[2] : ""));
     74                 } catch (RemoteException e) {
     75                     System.err.println("Error communicating with UsbManager: " + e);
     76                 }
     77                 return;
     78             }
     79         }
     80         System.err.println(longHelp());
     81     }
     82 }
     83