content: /*
   * Copyright (C) 2017 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 com.android.server.usb.descriptors;
  
  // import com.android.server.usb.descriptors.report.ReportCanvas;
  
  /**
   * @hide
   * An audio class-specific Selector Unit Interface.
   * see audio10.pdf section 4.3.2.4
   */
  public final class UsbACSelectorUnit extends UsbACInterface {
      private static final String TAG = "UsbACSelectorUnit";
  
      private byte mUnitID;   // 3:1 Constant uniquely identifying the Unit within the audio function.
                              // This value is used in all requests to address this Unit.
      private byte mNumPins;  // 4:1 Number of input pins in this unit
      private byte[] mSourceIDs;  // 5+mNumPins:1 ID of the Unit or Terminal to which the first
                                  // Input Pin of this Selector Unit is connected.
      private byte mNameIndex;    // Index of a string descriptor, describing the Selector Unit.
  
      public UsbACSelectorUnit(int length, byte type, byte subtype, int subClass) {
          super(length, type, subtype, subClass);
      }
  
      public byte getUnitID() {
          return mUnitID;
      }
  
      public byte getNumPins() {
          return mNumPins;
      }
  
      public byte[] getSourceIDs() {
          return mSourceIDs;
      }
  
      public byte getNameIndex() {
          return mNameIndex;
      }
  
      @Override
      public int parseRawDescriptors(ByteStream stream) {
          mUnitID = stream.getByte();
          mNumPins = stream.getByte();
          mSourceIDs = new byte[mNumPins];
          for (int index = 0; index < mNumPins; index++) {
              mSourceIDs[index] = stream.getByte();
          }
          mNameIndex = stream.getByte();
  
          return mLength;
      }
  
  //    @Override
  //    public void report(ReportCanvas canvas) {
  //        super.report(canvas);
  //
  //        //TODO
  //    }
  }
  