content: /*
   * Copyright (C) 2014 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.hdmi;
  
  import android.annotation.IntDef;
  import android.annotation.StringDef;
  import android.hardware.hdmi.HdmiDeviceInfo;
  
  import java.lang.annotation.Retention;
  import java.lang.annotation.RetentionPolicy;
  
  /**
   * Defines constants related to HDMI-CEC protocol internal implementation. If a constant will be
   * used in the public api, it should be located in {@link android.hardware.hdmi.HdmiControlManager}.
   */
  final class Constants {
  
      /** Logical address for TV */
      public static final int ADDR_TV = 0;
  
      /** Logical address for recorder 1 */
      public static final int ADDR_RECORDER_1 = 1;
  
      /** Logical address for recorder 2 */
      public static final int ADDR_RECORDER_2 = 2;
  
      /** Logical address for tuner 1 */
      public static final int ADDR_TUNER_1 = 3;
  
      /** Logical address for playback 1 */
      public static final int ADDR_PLAYBACK_1 = 4;
  
      /** Logical address for audio system */
      public static final int ADDR_AUDIO_SYSTEM = 5;
  
      /** Logical address for tuner 2 */
      public static final int ADDR_TUNER_2 = 6;
  
      /** Logical address for tuner 3 */
      public static final int ADDR_TUNER_3 = 7;
  
      /** Logical address for playback 2 */
      public static final int ADDR_PLAYBACK_2 = 8;
  
      /** Logical address for recorder 3 */
      public static final int ADDR_RECORDER_3 = 9;
  
      /** Logical address for tuner 4 */
      public static final int ADDR_TUNER_4 = 10;
  
      /** Logical address for playback 3 */
      public static final int ADDR_PLAYBACK_3 = 11;
  
      /** Logical address reserved for future usage */
      public static final int ADDR_RESERVED_1 = 12;
  
      /** Logical address reserved for future usage */
      public static final int ADDR_RESERVED_2 = 13;
  
      /** Logical address for TV other than the one assigned with {@link #ADDR_TV} */
      public static final int ADDR_SPECIFIC_USE = 14;
  
      /** Logical address for devices to which address cannot be allocated */
      public static final int ADDR_UNREGISTERED = 15;
  
      /** Logical address used in the destination address field for broadcast messages */
      public static final int ADDR_BROADCAST = 15;
  
      /** Logical address used to indicate it is not initialized or invalid. */
      public static final int ADDR_INVALID = -1;
  
      /** Logical address used to indicate the source comes from internal device. */
      public static final int ADDR_INTERNAL = HdmiDeviceInfo.ADDR_INTERNAL;
  
      static final int MESSAGE_FEATURE_ABORT = 0x00;
      static final int MESSAGE_IMAGE_VIEW_ON = 0x04;
      static final int MESSAGE_TUNER_STEP_INCREMENT = 0x05;
      static final int MESSAGE_TUNER_STEP_DECREMENT = 0x06;
      static final int MESSAGE_TUNER_DEVICE_STATUS = 0x07;
      static final int MESSAGE_GIVE_TUNER_DEVICE_STATUS = 0x08;
      static final int MESSAGE_RECORD_ON = 0x09;
      static final int MESSAGE_RECORD_STATUS = 0x0A;
      static final int MESSAGE_RECORD_OFF = 0x0B;
      static final int MESSAGE_TEXT_VIEW_ON = 0x0D;
      static final int MESSAGE_RECORD_TV_SCREEN = 0x0F;
      static final int MESSAGE_GIVE_DECK_STATUS = 0x1A;
      static final int MESSAGE_DECK_STATUS = 0x1B;
      static final int MESSAGE_SET_MENU_LANGUAGE = 0x32;
      static final int MESSAGE_CLEAR_ANALOG_TIMER = 0x33;
      static final int MESSAGE_SET_ANALOG_TIMER = 0x34;
      static final int MESSAGE_TIMER_STATUS = 0x35;
      static final int MESSAGE_STANDBY = 0x36;
      static final int MESSAGE_PLAY = 0x41;
      static final int MESSAGE_DECK_CONTROL = 0x42;
      static final int MESSAGE_TIMER_CLEARED_STATUS = 0x043;
      static final int MESSAGE_USER_CONTROL_PRESSED = 0x44;
      static final int MESSAGE_USER_CONTROL_RELEASED = 0x45;
      static final int MESSAGE_GIVE_OSD_NAME = 0x46;
      static final int MESSAGE_SET_OSD_NAME = 0x47;
      static final int MESSAGE_SET_OSD_STRING = 0x64;
      static final int MESSAGE_SET_TIMER_PROGRAM_TITLE = 0x67;
      static final int MESSAGE_SYSTEM_AUDIO_MODE_REQUEST = 0x70;
      static final int MESSAGE_GIVE_AUDIO_STATUS = 0x71;
      static final int MESSAGE_SET_SYSTEM_AUDIO_MODE = 0x72;
      static final int MESSAGE_REPORT_AUDIO_STATUS = 0x7A;
      static final int MESSAGE_GIVE_SYSTEM_AUDIO_MODE_STATUS = 0x7D;
      static final int MESSAGE_SYSTEM_AUDIO_MODE_STATUS = 0x7E;
      static final int MESSAGE_ROUTING_CHANGE = 0x80;
      static final int MESSAGE_ROUTING_INFORMATION = 0x81;
      static final int MESSAGE_ACTIVE_SOURCE = 0x82;
      static final int MESSAGE_GIVE_PHYSICAL_ADDRESS = 0x83;
      static final int MESSAGE_REPORT_PHYSICAL_ADDRESS = 0x84;
      static final int MESSAGE_REQUEST_ACTIVE_SOURCE = 0x85;
      static final int MESSAGE_SET_STREAM_PATH = 0x86;
      static final int MESSAGE_DEVICE_VENDOR_ID = 0x87;
      static final int MESSAGE_VENDOR_COMMAND = 0x89;
      static final int MESSAGE_VENDOR_REMOTE_BUTTON_DOWN = 0x8A;
      static final int MESSAGE_VENDOR_REMOTE_BUTTON_UP = 0x8B;
      static final int MESSAGE_GIVE_DEVICE_VENDOR_ID = 0x8C;
      static final int MESSAGE_MENU_REQUEST = 0x8D;
      static final int MESSAGE_MENU_STATUS = 0x8E;
      static final int MESSAGE_GIVE_DEVICE_POWER_STATUS = 0x8F;
      static final int MESSAGE_REPORT_POWER_STATUS = 0x90;
      static final int MESSAGE_GET_MENU_LANGUAGE = 0x91;
      static final int MESSAGE_SELECT_ANALOG_SERVICE = 0x92;
      static final int MESSAGE_SELECT_DIGITAL_SERVICE = 0x93;
      static final int MESSAGE_SET_DIGITAL_TIMER = 0x97;
      static final int MESSAGE_CLEAR_DIGITAL_TIMER = 0x99;
      static final int MESSAGE_SET_AUDIO_RATE = 0x9A;
      static final int MESSAGE_INACTIVE_SOURCE = 0x9D;
      static final int MESSAGE_CEC_VERSION = 0x9E;
      static final int MESSAGE_GET_CEC_VERSION = 0x9F;
      static final int MESSAGE_VENDOR_COMMAND_WITH_ID = 0xA0;
      static final int MESSAGE_CLEAR_EXTERNAL_TIMER = 0xA1;
      static final int MESSAGE_SET_EXTERNAL_TIMER = 0xA2;
      static final int MESSAGE_REPORT_SHORT_AUDIO_DESCRIPTOR = 0xA3;
      static final int MESSAGE_REQUEST_SHORT_AUDIO_DESCRIPTOR = 0xA4;
      static final int MESSAGE_INITIATE_ARC = 0xC0;
      static final int MESSAGE_REPORT_ARC_INITIATED = 0xC1;
      static final int MESSAGE_REPORT_ARC_TERMINATED = 0xC2;
      static final int MESSAGE_REQUEST_ARC_INITIATION = 0xC3;
      static final int MESSAGE_REQUEST_ARC_TERMINATION = 0xC4;
      static final int MESSAGE_TERMINATE_ARC = 0xC5;
      static final int MESSAGE_CDC_MESSAGE = 0xF8;
      static final int MESSAGE_ABORT = 0xFF;
  
      static final int UNKNOWN_VENDOR_ID = 0xFFFFFF;
  
      static final int TRUE = 1;
      static final int FALSE = 0;
  
      // Internal abort error code. It's the same as success.
      static final int ABORT_NO_ERROR = -1;
      // Constants related to operands of HDMI CEC commands.
      // Refer to CEC Table 29 in HDMI Spec v1.4b.
      // [Abort Reason]
      static final int ABORT_UNRECOGNIZED_OPCODE = 0;
      static final int ABORT_NOT_IN_CORRECT_MODE = 1;
      static final int ABORT_CANNOT_PROVIDE_SOURCE = 2;
      static final int ABORT_INVALID_OPERAND = 3;
      static final int ABORT_REFUSED = 4;
      static final int ABORT_UNABLE_TO_DETERMINE = 5;
  
      // [Audio Status]
      static final int SYSTEM_AUDIO_STATUS_OFF = 0;
      static final int SYSTEM_AUDIO_STATUS_ON = 1;
  
      // [Menu State]
      static final int MENU_STATE_ACTIVATED = 0;
      static final int MENU_STATE_DEACTIVATED = 1;
  
      // Audio Format Codes
      // Refer to CEA Standard (CEA-861-D), Table 37 Audio Format Codes.
      @Retention(RetentionPolicy.SOURCE)
      @IntDef({
          AUDIO_CODEC_NONE,
          AUDIO_CODEC_LPCM,
          AUDIO_CODEC_DD,
          AUDIO_CODEC_MPEG1,
          AUDIO_CODEC_MP3,
          AUDIO_CODEC_MPEG2,
          AUDIO_CODEC_AAC,
          AUDIO_CODEC_DTS,
          AUDIO_CODEC_ATRAC,
          AUDIO_CODEC_ONEBITAUDIO,
          AUDIO_CODEC_DDP,
          AUDIO_CODEC_DTSHD,
          AUDIO_CODEC_TRUEHD,
          AUDIO_CODEC_DST,
          AUDIO_CODEC_WMAPRO,
          AUDIO_CODEC_MAX,
      })
      public @interface AudioCodec {}
  
      static final int AUDIO_CODEC_NONE = 0x0;
      static final int AUDIO_CODEC_LPCM = 0x1; // Support LPCMs
      static final int AUDIO_CODEC_DD = 0x2; // Support DD
      static final int AUDIO_CODEC_MPEG1 = 0x3; // Support MPEG1
      static final int AUDIO_CODEC_MP3 = 0x4; // Support MP3
      static final int AUDIO_CODEC_MPEG2 = 0x5; // Support MPEG2
      static final int AUDIO_CODEC_AAC = 0x6; // Support AAC
      static final int AUDIO_CODEC_DTS = 0x7; // Support DTS
      static final int AUDIO_CODEC_ATRAC = 0x8; // Support ATRAC
      static final int AUDIO_CODEC_ONEBITAUDIO = 0x9; // Support One-Bit Audio
      static final int AUDIO_CODEC_DDP = 0xA; // Support DDP
      static final int AUDIO_CODEC_DTSHD = 0xB; // Support DTSHD
      static final int AUDIO_CODEC_TRUEHD = 0xC; // Support MLP/TRUE-HD
      static final int AUDIO_CODEC_DST = 0xD; // Support DST
      static final int AUDIO_CODEC_WMAPRO = 0xE; // Support WMA-Pro
      static final int AUDIO_CODEC_MAX = 0xF;
  
      @StringDef({
          AUDIO_DEVICE_ARC_IN,
          AUDIO_DEVICE_SPDIF,
      })
      public @interface AudioDevice {}
  
      static final String AUDIO_DEVICE_ARC_IN = "ARC_IN";
      static final String AUDIO_DEVICE_SPDIF = "SPDIF";
  
      // Bit mask used to get the routing path of the top level device.
      // When &'d with the path 1.2.2.0 (0x1220), for instance, gives 1.0.0.0.
      static final int ROUTING_PATH_TOP_MASK = 0xF000;
      static final int ROUTING_PATH_TOP_SHIFT = 12;
  
      static final int INVALID_PORT_ID = HdmiDeviceInfo.PORT_INVALID;
      static final int INVALID_PHYSICAL_ADDRESS = HdmiDeviceInfo.PATH_INVALID;
      static final int PATH_INTERNAL = HdmiDeviceInfo.PATH_INTERNAL;
  
      // Strategy for device polling.
      // Should use "OR(|) operation of POLL_STRATEGY_XXX and POLL_ITERATION_XXX.
      static final int POLL_STRATEGY_MASK = 0x3; // first and second bit.
      static final int POLL_STRATEGY_REMOTES_DEVICES = 0x1;
      static final int POLL_STRATEGY_SYSTEM_AUDIO = 0x2;
  
      static final int POLL_ITERATION_STRATEGY_MASK = 0x30000; // first and second bit.
      static final int POLL_ITERATION_IN_ORDER = 0x10000;
      static final int POLL_ITERATION_REVERSE_ORDER = 0x20000;
  
      static final int UNKNOWN_VOLUME = -1;
  
      // States of property PROPERTY_SYSTEM_AUDIO_CONTROL_ON_POWER_ON
      // to decide if turn on the system audio control when power on the device
      @IntDef({
          ALWAYS_SYSTEM_AUDIO_CONTROL_ON_POWER_ON,
          USE_LAST_STATE_SYSTEM_AUDIO_CONTROL_ON_POWER_ON,
          NEVER_SYSTEM_AUDIO_CONTROL_ON_POWER_ON
      })
      @interface SystemAudioControlOnPowerOn {}
  
      static final int ALWAYS_SYSTEM_AUDIO_CONTROL_ON_POWER_ON = 0;
      static final int USE_LAST_STATE_SYSTEM_AUDIO_CONTROL_ON_POWER_ON = 1;
      static final int NEVER_SYSTEM_AUDIO_CONTROL_ON_POWER_ON = 2;
  
      // Port id to record local active port for Routing Control features
      // They are used to map to corresponding Inputs
      // Current interface is only implemented for specific device.
      // Developers can add more port number and map them to corresponding inputs on demand.
      @IntDef({
          CEC_SWITCH_HOME,
          CEC_SWITCH_HDMI1,
          CEC_SWITCH_HDMI2,
          CEC_SWITCH_HDMI3,
          CEC_SWITCH_HDMI4,
          CEC_SWITCH_HDMI5,
          CEC_SWITCH_HDMI6,
          CEC_SWITCH_HDMI7,
          CEC_SWITCH_HDMI8,
          CEC_SWITCH_ARC,
          CEC_SWITCH_BLUETOOTH,
          CEC_SWITCH_OPTICAL,
          CEC_SWITCH_AUX
      })
      @interface LocalActivePort {}
      static final int CEC_SWITCH_HOME = 0;
      static final int CEC_SWITCH_HDMI1 = 1;
      static final int CEC_SWITCH_HDMI2 = 2;
      static final int CEC_SWITCH_HDMI3 = 3;
      static final int CEC_SWITCH_HDMI4 = 4;
      static final int CEC_SWITCH_HDMI5 = 5;
      static final int CEC_SWITCH_HDMI6 = 6;
      static final int CEC_SWITCH_HDMI7 = 7;
      static final int CEC_SWITCH_HDMI8 = 8;
      static final int CEC_SWITCH_ARC = 17;
      static final int CEC_SWITCH_BLUETOOTH = 18;
      static final int CEC_SWITCH_OPTICAL = 19;
      static final int CEC_SWITCH_AUX = 20;
      static final int CEC_SWITCH_PORT_MAX = 21;
  
      static final String PROPERTY_PREFERRED_ADDRESS_AUDIO_SYSTEM =
              "persist.sys.hdmi.addr.audiosystem";
      static final String PROPERTY_PREFERRED_ADDRESS_PLAYBACK = "persist.sys.hdmi.addr.playback";
      static final String PROPERTY_PREFERRED_ADDRESS_TV = "persist.sys.hdmi.addr.tv";
  
      // Property name for the local device configurations.
      // TODO(OEM): OEM should provide this property, and the value is the comma separated integer
      //     values which denotes the device type in HDMI Spec 1.4.
      static final String PROPERTY_DEVICE_TYPE = "ro.hdmi.device_type";
  
      // TODO(OEM): Set this to false to keep the playback device in sleep upon hotplug event.
      //            True by default.
      static final String PROPERTY_WAKE_ON_HOTPLUG = "ro.hdmi.wake_on_hotplug";
  
      // TODO(OEM): Set this to true to enable 'Set Menu Language' feature. False by default.
      static final String PROPERTY_SET_MENU_LANGUAGE = "ro.hdmi.set_menu_language";
  
      /**
       * Property to save the ARC port id on system audio device.
       * <p>When ARC is initiated, this port will be used to turn on ARC.
       */
      static final String PROPERTY_SYSTEM_AUDIO_DEVICE_ARC_PORT =
              "ro.hdmi.property_sytem_audio_device_arc_port";
  
      /**
       * Property to disable muting logic in System Audio Control handling. Default is true.
       *
       * <p>True means enabling muting logic.
       * <p>False means never mute device.
       */
      static final String PROPERTY_SYSTEM_AUDIO_MODE_MUTING_ENABLE =
              "ro.hdmi.property_system_audio_mode_muting_enable";
  
      /**
       * When set to true the HdmiControlService will never request a Logical Address for the
       * playback device type. Default is false.
       *
       * <p> This is useful when HDMI CEC multiple device types is not supported by the cec driver
       */
      static final String PROPERTY_HDMI_CEC_NEVER_CLAIM_PLAYBACK_LOGICAL_ADDRESS =
              "ro.hdmi.property_hdmi_cec_never_claim_playback_logical_address";
  
      /**
       * A comma separated list of logical addresses that HdmiControlService
       * will never assign local CEC devices to.
       *
       * <p> This is useful when HDMI CEC hardware module can't assign multiple logical addresses
       * in the range same range of 0-7 or 8-15.
       */
      static final String PROPERTY_HDMI_CEC_NEVER_ASSIGN_LOGICAL_ADDRESSES =
              "ro.hdmi.property_hdmi_cec_never_assign_logical_addresses";
  
      // Set to false to allow playback device to go to suspend mode even
      // when it's an active source. True by default.
      static final String PROPERTY_KEEP_AWAKE = "persist.sys.hdmi.keep_awake";
  
      // TODO(UI): Set this from UI to decide if turn on System Audio Mode when power on the device
      /**
       * Property to decide if turn on the system audio control when power on the device.
       *
       * <p>Default is always turn on. State must be a valid {@link SystemAudioControlOnPowerOn} int.
       */
      static final String PROPERTY_SYSTEM_AUDIO_CONTROL_ON_POWER_ON =
              "persist.sys.hdmi.system_audio_control_on_power_on";
  
      /**
       * Property to record last state of system audio control before device powered off.
       * <p>When {@link #PROPERTY_SYSTEM_AUDIO_CONTROL_ON_POWER_ON} is set to
       * {@link #USE_LAST_STATE_SYSTEM_AUDIO_CONTROL_ON_POWER_ON}, restoring this state on power on.
       * <p>State must be true or false. Default true.
       */
      static final String PROPERTY_LAST_SYSTEM_AUDIO_CONTROL =
              "persist.sys.hdmi.last_system_audio_control";
  
      /**
       * Property to indicate if device supports ARC or not
       * <p>Default is true.
       */
      static final String PROPERTY_ARC_SUPPORT =
              "persist.sys.hdmi.property_arc_support";
  
      /**
       * Property to save the audio port to switch to when system audio control is on.
       * <P>Audio system should switch to this port when cec active source is not its child in the tree
       * or is not itself.
       *
       * <p>Default is ARC port.
       */
      static final String PROPERTY_SYSTEM_AUDIO_MODE_AUDIO_PORT =
              "persist.sys.hdmi.property_sytem_audio_mode_audio_port";
  
      /**
       * Property to strip local audio of amplifier and use local speaker
       * when TV does not support system audio mode.
       *
       * <p>This property applies to device with both audio system/playback types.
       * <p>True means using local speaker when TV does not support system audio.
       * <p>False means passing audio to TV. Default is true.
       */
      static final String PROPERTY_STRIP_AUDIO_TV_NO_SYSTEM_AUDIO =
          "persist.sys.hdmi.property_strip_audio_tv_no_system_audio";
  
      static final int RECORDING_TYPE_DIGITAL_RF = 1;
      static final int RECORDING_TYPE_ANALOGUE_RF = 2;
      static final int RECORDING_TYPE_EXTERNAL_PHYSICAL_ADDRESS = 3;
      static final int RECORDING_TYPE_OWN_SOURCE = 4;
  
      // Definitions used for setOption(). These should be in sync with the definition
      // in hardware/libhardware/include/hardware/mhl.h.
  
      // If set to disabled, TV does not switch ports when mobile device is connected.
      static final int OPTION_MHL_INPUT_SWITCHING = 101;
  
      // If set to enabled, TV disables power charging for mobile device.
      static final int OPTION_MHL_POWER_CHARGE = 102;
  
      // If set to disabled, all MHL commands are discarded.
      static final int OPTION_MHL_ENABLE = 103;
  
      // If set to disabled, system service yields control of MHL to sub-microcontroller.
      // If enabled, it takes the control back.
      static final int OPTION_MHL_SERVICE_CONTROL = 104;
  
      static final int DISABLED = 0;
      static final int ENABLED = 1;
  
      private Constants() {
          /* cannot be instantiated */
      }
  }
  