1 /* 2 * Copyright (C) 2011 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 android.hardware; 18 19 import android.annotation.SystemService; 20 import android.annotation.UnsupportedAppUsage; 21 import android.content.Context; 22 import android.os.ParcelFileDescriptor; 23 import android.os.RemoteException; 24 25 import java.io.IOException; 26 27 /** 28 * @hide 29 */ 30 @SystemService(Context.SERIAL_SERVICE) 31 public class SerialManager { 32 private static final String TAG = "SerialManager"; 33 34 private final Context mContext; 35 private final ISerialManager mService; 36 37 /** 38 * {@hide} 39 */ 40 public SerialManager(Context context, ISerialManager service) { 41 mContext = context; 42 mService = service; 43 } 44 45 /** 46 * Returns a string array containing the names of available serial ports 47 * 48 * @return names of available serial ports 49 */ 50 @UnsupportedAppUsage 51 public String[] getSerialPorts() { 52 try { 53 return mService.getSerialPorts(); 54 } catch (RemoteException e) { 55 throw e.rethrowFromSystemServer(); 56 } 57 } 58 59 /** 60 * Opens and returns the {@link android.hardware.SerialPort} with the given name. 61 * The speed of the serial port must be one of: 62 * 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800, 9600, 63 * 19200, 38400, 57600, 115200, 230400, 460800, 500000, 576000, 921600, 1000000, 1152000, 64 * 1500000, 2000000, 2500000, 3000000, 3500000 or 4000000 65 * 66 * @param name of the serial port 67 * @param speed at which to open the serial port 68 * @return the serial port 69 */ 70 @UnsupportedAppUsage 71 public SerialPort openSerialPort(String name, int speed) throws IOException { 72 try { 73 ParcelFileDescriptor pfd = mService.openSerialPort(name); 74 if (pfd != null) { 75 SerialPort port = new SerialPort(name); 76 port.open(pfd, speed); 77 return port; 78 } else { 79 throw new IOException("Could not open serial port " + name); 80 } 81 } catch (RemoteException e) { 82 throw e.rethrowFromSystemServer(); 83 } 84 } 85 } 86
