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