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