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
17package android.hardware;
18
19import android.annotation.SystemService;
20import android.content.Context;
21import android.os.ParcelFileDescriptor;
22import android.os.RemoteException;
23
24import java.io.IOException;
25
26/**
27 * @hide
28 */
29@SystemService(Context.SERIAL_SERVICE)
30public 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            throw e.rethrowFromSystemServer();
54        }
55    }
56
57    /**
58     * Opens and returns the {@link android.hardware.SerialPort} with the given name.
59     * The speed of the serial port must be one of:
60     * 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800, 9600,
61     * 19200, 38400, 57600, 115200, 230400, 460800, 500000, 576000, 921600, 1000000, 1152000,
62     * 1500000, 2000000, 2500000, 3000000, 3500000 or 4000000
63     *
64     * @param name of the serial port
65     * @param speed at which to open the serial port
66     * @return the serial port
67     */
68    public SerialPort openSerialPort(String name, int speed) throws IOException {
69        try {
70            ParcelFileDescriptor pfd = mService.openSerialPort(name);
71            if (pfd != null) {
72                SerialPort port = new SerialPort(name);
73                port.open(pfd, speed);
74                return port;
75            } else {
76                throw new IOException("Could not open serial port " + name);
77            }
78        } catch (RemoteException e) {
79            throw e.rethrowFromSystemServer();
80        }
81    }
82}
83