• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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      */
SerialManager(Context context, ISerialManager service)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      */
getSerialPorts()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      */
openSerialPort(String name, int speed)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