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 Output Terminal interface.
   * see Audio20.pdf section 3.13.3 Output Terminal
   */
  public final class Usb20ACOutputTerminal extends UsbACTerminal {
      private static final String TAG = "Usb20ACOutputTerminal";
  
      // Audio20.pdf - section 4.7.2.5, Table  4-10
      // Always 12 bytes
      private byte mSourceID;     // 7:1 - ID of the Unit or Terminal to which this
                                  // Terminal is connected.
      private byte mClkSoureID;   // 8:1 - ID of the Clock Entity to which this Output
      // Terminal is connected.
      private int mControls;      // 9:2 - see Audio20.pdf Table 4-10
      private byte mTerminalID;   // 11:1 - Index of a string descriptor, describing the
  
      public Usb20ACOutputTerminal(int length, byte type, byte subtype, int subClass) {
          super(length, type, subtype, subClass);
      }
  
      public byte getSourceID() {
          return mSourceID;
      }
  
      public byte getClkSourceID() {
          return mClkSoureID;
      }
  
      public int getControls() {
          return mControls;
      }
  
      public byte getTerminalID() {
          return mTerminalID;
      }
  
      @Override
      public int parseRawDescriptors(ByteStream stream) {
          super.parseRawDescriptors(stream);
  
          mSourceID = stream.getByte();
          mClkSoureID = stream.getByte();
          mControls = stream.unpackUsbShort();
          mTerminalID = stream.getByte();
  
          return mLength;
      }
  
      @Override
      public void report(ReportCanvas canvas) {
          super.report(canvas);
  
          canvas.openList();
          canvas.writeListItem("Clock Source ID: " + getClkSourceID());
          canvas.writeListItem("Controls: " + ReportCanvas.getHexString(getControls()));
          canvas.writeListItem("Terminal Name ID: " + getTerminalID());
          canvas.closeList();
      }
  }
  