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