90 lines
3.0 KiB
Java
90 lines
3.0 KiB
Java
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.hardware;
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import android.annotation.SystemService;
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import android.compat.annotation.UnsupportedAppUsage;
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import android.content.Context;
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import android.os.Build;
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import android.os.ParcelFileDescriptor;
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import android.os.RemoteException;
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import java.io.IOException;
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/**
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* @hide
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*/
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@SystemService(Context.SERIAL_SERVICE)
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@android.ravenwood.annotation.RavenwoodKeepWholeClass
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public class SerialManager {
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private static final String TAG = "SerialManager";
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private final Context mContext;
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private final ISerialManager mService;
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/**
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* {@hide}
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*/
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public SerialManager(Context context, ISerialManager service) {
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mContext = context;
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mService = service;
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}
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/**
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* Returns a string array containing the names of available serial ports
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*
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* @return names of available serial ports
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*/
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@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
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public String[] getSerialPorts() {
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try {
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return mService.getSerialPorts();
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} catch (RemoteException e) {
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throw e.rethrowFromSystemServer();
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}
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}
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/**
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* Opens and returns the {@link android.hardware.SerialPort} with the given name.
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* The speed of the serial port must be one of:
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* 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800, 9600,
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* 19200, 38400, 57600, 115200, 230400, 460800, 500000, 576000, 921600, 1000000, 1152000,
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* 1500000, 2000000, 2500000, 3000000, 3500000 or 4000000
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*
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* @param name of the serial port
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* @param speed at which to open the serial port
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* @return the serial port
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*/
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@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
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@android.ravenwood.annotation.RavenwoodThrow(blockedBy = ParcelFileDescriptor.class, reason =
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"Needs socketpair() to offer accurate emulation")
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public SerialPort openSerialPort(String name, int speed) throws IOException {
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try {
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ParcelFileDescriptor pfd = mService.openSerialPort(name);
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if (pfd != null) {
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SerialPort port = new SerialPort(name);
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port.open(pfd, speed);
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return port;
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} else {
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throw new IOException("Could not open serial port " + name);
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}
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} catch (RemoteException e) {
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throw e.rethrowFromSystemServer();
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}
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}
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}
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