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 Midi Endpoint.
   * see midi10.pdf section 6.2.2
   */
  public final class UsbACMidiEndpoint extends UsbACEndpoint {
      private static final String TAG = "UsbACMidiEndpoint";
  
      private byte mNumJacks;
      private byte[] mJackIds;
  
      public UsbACMidiEndpoint(int length, byte type, int subclass) {
          super(length, type, subclass);
      }
  
      public byte getNumJacks() {
          return mNumJacks;
      }
  
      public byte[] getJackIds() {
          return mJackIds;
      }
  
      @Override
      public int parseRawDescriptors(ByteStream stream) {
          super.parseRawDescriptors(stream);
  
          mNumJacks = stream.getByte();
          mJackIds = new byte[mNumJacks];
          for (int jack = 0; jack < mNumJacks; jack++) {
              mJackIds[jack] = stream.getByte();
          }
          return mLength;
      }
  
      @Override
      public void report(ReportCanvas canvas) {
          super.report(canvas);
  
          canvas.writeHeader(3, "AC Midi Endpoint: " + ReportCanvas.getHexString(getType())
                  + " Length: " + getLength());
          canvas.openList();
          canvas.writeListItem("" + getNumJacks() + " Jacks.");
          canvas.closeList();
      }
  }